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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Применить Всего найдено 7497. Отображено 100.
13-12-2017 дата публикации

Плунжерно-диафрагменный насос

Номер: RU0000175658U1
Автор: Айдар Асгатович Гараев, Валерий Николаевич Абрамов, Марат Марсович Залятов, Фирдавис Азалович Багманов
Принадлежит: Общество с ограниченной ответственностью "Купер"

Плунжерно-диафрагменный насос относится к области машиностроения, в частности, к конструкции насосов, а именно к жидкостным насосам, таким как мембранные насосы с гидравлическим приводом.Он содержит гидроплиту с гидравлической камерой, которая заполнена гидрожидкостью, и в которой расположена рабочая диафрагма со своей опорой. На опоре диафрагмы закреплен курок с возможностью кинематической связи с золотником - регулятором подачи гидрожидкости в гидравлическую камеру гидроплиты. Гидрожидкость подается из резервуара через каналы недолива и перелива с установленными в них соответствующими клапанами. Открытая площадь проходного сечения канала клапана недолива, сообщенного с соответствующим каналом золотника при посадке опоры диафрагмы на опору гидроплиты, лежит в пределах 0,5-0,85 от общей площади проходного сечения канала клапана недолива.Такая конструкция позволяет избежать ударной посадки диафрагмы на опору гидроплиты. Ц 1 175658 ко РОССИИСКАЯ ФЕДЕРАЦИЯ (19) РЦ (11) х о. о х © 02) Ц Я к С ки ть (51) МПК ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ НОАВ 43/067 (2006.01) НОАВ 9/08 (2006.01) (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (21)(22) Заявка: 2017128562, 10.08.2017 (24) Дата начала отсчета срока действия патента: 10.08.2017 Дата регистрации: 13.12.2017 Приоритет(ы): (22) Дата подачи заявки: 10.08.2017 (45) Опубликовано: 13.12.2017 Бюл. № 35 Адрес для переписки: 121059, Москва, а/я 20, Павлову А.В. (72) Автор(ы): Багманов Фирдавис Азалович (КО), Залятов Марат Марсович (КП), Гараев Айдар Асгатович (КО), Абрамов Валерий Николаевич (КО) (73) Патентообладатель(и): Общество с ограниченной ответственностью "Купер" (КО) (56) Список документов, цитированных в отчете о поиске: 0$ 7665974 В2, 23.02.2010. КО 2311559 С2, 27.11.2007. $9 1763711 АТ, 23.09.1992. 50 191353 А, 09.03.1967. 0$ 1920014 А, 25.07.1933. (54) ПЛУНЖЕРНО-ДИАФРАГМЕННЫЙ НАСОС (57) Реферат: Плунжерно-диафрагменный насос относится к области машиностроения, в частности, к конструкции насосов, а именно к ...

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Номер записи: 1
21-12-2017 дата публикации

Пьезоэлектрический микронасос

Номер: RU0000175857U1
Автор: Александр Николаевич Виноградов, Игорь Анатольевич Иваникин, Павел Андреевич Титов, Роман Вадимович Любченко
Принадлежит: федеральное государственное бюджетное научное учреждение "Научно-исследовательский институт перспективных материалов и технологий"

Полезная модель относится к устройствам для прецизионной перекачки жидкости или газа, а именно к пьезоэлектрическим насосам мембранного типа, и может применяться в медицине, в космической, вакуумной технике и в других областяхПьезоэлектрический микронасос содержит корпус с входным и выходным отверстиями, закрепленную на нем мембрану с пьезоэлектрическими элементами, мембрана выполнена в форме тонкого диска толщиной от 0,03 мм до 0,5 мм, а пьезоэлектрические элементы выполнены в виде колец, концентрически расположенных на поверхности мембраны с образованием между ними радиальных зазоров с пониженной жесткостью изгиба мембраны и обеспечивающих при подаче переменного напряжения с разной фазой ее волнообразную деформацию, перемещающую рабочую жидкость или газ от входного отверстия к выходному. Кроме того, пьезоэлектрический микронасос содержит по меньшей мере два пьезоэлектрических элемента. Кроме того, пьезоэлектрические элементы выполнены с одинаковыми площадями торцевых поверхностей, при этом ширина каждого кольцевого пьезоэлектрического элемента выбирается из условия сохранения равенства площадей торцевых поверхностей всех пьезоэлектрических элементов. Пьезоэлектрический микронасос может быть дополнительно снабжен пьезоэлектрическим элементом в форме диска, закрепленным в центре на поверхности мембраны. На плоской поверхности корпуса под мембраной может быть выполнена кольцевая проточка, соединенная с входным отверстием.Предложенный пьезоэлектрический микронасос позволяет повысить производительность перекачки жидкости за счет увеличения рабочего хода мембраны путем использования деформаций кольцевых участков пониженной жесткости в зазорах между пьезоэлектрическими элементами, а также применения пьезоэлектрических элементов кольцевой формы с примерно одинаковыми площадями торцевой поверхности. Ц 1 175857 ко РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (11) < 8 о а 03) ВО о $ а —. < $ Ц 7 (51) МПК ЕОАВ 43/04 (2006.01) (12) ОПИСАНИЕ ...

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Номер записи: 2
08-03-2012 дата публикации

Hearing Device System and Method

Номер: US20120057734A1
Автор: Robert B. Schulein, Samuel P. Gido, Stephen D. Ambrose
Принадлежит: Asius Tech LLC

A system for linking together audio signal producing, signal processing, and ear coupling devices comprising, in an embodiment: (1) an in-ear audio coupling device; (2) hearing aid electronics; (3) an external audio signal generating device; and (4) a module for audio mixing and enhancement.

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Номер записи: 3
22-03-2012 дата публикации

Diaphragm vacuum pump

Номер: US20120070323A1
Автор: Armin Felber, Beda Weber, Etienne Furrer, Roland Koch
Принадлежит: MEDELA HOLDING AG

A diaphragm vacuum pump has an electrically operated drive unit and a vacuum diaphragm, which separates a pump chamber into a drive-side part and a drive-remote part and which can be deflected by means of a movable part of the drive unit. The drive unit is an electromagnetic drive unit and the vacuum diaphragm is deflected in the direction of a linear movement generated electromagnetically in the drive unit. Preferably, a ventilation valve is also actuated the movable part. The vacuum pump is relatively small and compact and operates quietly. The vacuum pump is suitable in particular for “hands-free” applications of breastpumps.

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Номер записи: 4
26-04-2012 дата публикации

Tube pump

Номер: US20120100023A1
Автор: Akira Hanazuka, Yoshihisa Kagawa
Принадлежит: Nidec Servo Corp

A tube pump capable that prevents and minimizes torque variation in a drive motor regardless of the rotation direction of a rotor unit includes a casing in which a liquid-flowing tube is arranged; a drive motor provided with a driving shaft rotatable in forward and reverse directions; a rotor body; roller holders supported on the rotor body to swing with respect to the rotor body; pressing rollers rotatably supported on the roller holders to press the tube against an inner circumferential wall surface of the casing; and biasing units biasing the roller holders, when swung, to be returned to a pre-swing position. The roller holders are configured to swing with respect to the rotor body in a direction opposite to a rotation direction of the rotor body.

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Номер записи: 5
24-05-2012 дата публикации

Infusion pump cassette with ant i -free -flow valve mechanism

Номер: US20120130309A1
Автор: Brian Highley, Seralaathan Hariharesan
Принадлежит: Nestec SA

A fluid delivery system that includes an infusion pump and a cassette ( 1 ) with tubing ( 75 ) that is configured for engaging the pump mechanism of the infusion pump to accurately and repeatably deliver a fluid to a subject. The cassette has a housing with first and second ends for holding flexible tubing through which the fluid is directed, and the tubing engages a pumping mechanism to provide movement of the fluid through the tubing. When engaged with the pumping mechanism, the length of tubing is accurately and repeatably positioned in contact with and between the curved wall and the pumping mechanism.

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Номер записи: 6
28-06-2012 дата публикации

Fluid transporting device of the peristaltic type with a push pin and push plate arrangement

Номер: US20120164012A1
Автор: Hajime Miyazaki, KAZUO Kawasumi, Kenichi Ushikoshi
Принадлежит: Seiko Epson Corp

A fluid transporting device includes an elastic tube, a tube frame that holds the elastic tube in an arc, a rotary push plate arranged in the arc for facilitating fluid flow inside the elastic tube, and a plurality of push pins disposed between the elastic tube and the center of the arc. Each push pin includes a semispherical end portion that contacts the rotary push plate, a pushing end portion that places a bias on the elastic tube, and adjacent end portions of at least two push pins close the elastic tube when the semispherical end portions are pushed by an outer circumference arc of the rotary push plate.

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Номер записи: 7
21-03-2013 дата публикации

Piezoelectric micro-blower

Номер: US20130071269A1
Автор: Atsuhiko Hirata, Kiyoshi Kurihara, Masaaki Fujisaki
Принадлежит: Murata Manufacturing Co Ltd

A piezoelectric micro-blower includes a blower chamber located between a blower body and a vibrating plate, a first wall portion of the blower body arranged to face the vibrating plate across the blower chamber so as to vibrate with vibrations of the vibrating plate, a first opening in the first wall portion, a second wall portion on the opposite side of the first wall portion with respect to the blower chamber, a second opening in a portion of the second wall portion which faces the first opening, and an inflow passage located between the first wall portion and the second wall portion. Each of the first and second openings includes a plurality of holes, and each hole of the first opening and each hole of the second opening are arranged to face each other. Thus, noise is significantly reduced while the flow characteristic is maintained.

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Номер записи: 8
21-03-2013 дата публикации

HOSE PUMP WITH PLANETARY GEAR

Номер: US20130071270A1
Автор: Schwerdtfeger Uwe, Zupp Andre
Принадлежит: ULRICH GMBH & CO. KG

The invention relates to a hose pump for delivering a medium conveyed through a hose, including a housing, a drive, a carrier rotatable with respect to the housing, and a plurality of squeeze rollers that are mounted rotatably on the carrier and can be driven by the drive via a gear with a sun wheel and with a first planet wheel connected so as to rotate with the respective squeeze roller, wherein rotating squeeze rollers, during operation of the pump, press a hose, which is inserted into the pump, by squeezing the hose against an abutment and in this way convey the medium onwards through the hose in the delivery direction. In order to permit easier and quicker insertion of a hose in such a hose pump, the invention proposes that, in addition to the first planet wheel, each squeeze roller is also assigned at least a second planet wheel, which is coupled to the inner circumference, acting as a hollow wheel, of the housing in order to set the carrier in rotation from the drive during operation of the pump. 1. A hose pump for conveying a medium carried in a hose , comprising a housing with an inner circumference that acts as a crown wheel , a drive and several squeeze rollers that can be driven by the drive via a gear mechanism with a sun wheel and a first planet wheel that is connected to the respective squeeze roller in a rotationally rigid manner , wherein the rotating squeeze rollers press a hose inserted into the pump against an abutment during the operation of the pump in order to squeeze the hose and thusly convey the medium in the hose onward in the conveying direction , and wherein at least one second planet wheel in the form of a toothless friction wheel is assigned to each squeeze roller in addition to the first planet wheel , whereinthe squeeze rollers are rotatably supported on a carrier that is rotatable relative to the housingand the inner circumference of the housing is realized in a smooth fashion,wherein the second planet wheel respectively is ...

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Номер записи: 9
21-03-2013 дата публикации

VALVELESS PUMP

Номер: US20130071271A1
Автор: Kang Jane, Ku David, ROSEN DAVID
Принадлежит:

A valveless, pulsatile, non-contact, positive displacement, finger-pump for pumping one or more fluids is disclosed. The pump can include one or more channels for holding one or more lengths of flexible tubing. The channels can include an adjustment mechanism and/or a resilient backing plate to reduce over compression of the tubing. The pump can utilize a plurality of profiled, pivoting fingers to sequentially occlude a length of tubing causing a pumping action. The fingers can be moved from the first position to the second position by a motor driven camshaft. Cam lobes disposed on the camshaft can be a modified eccentric design to improve tube occlusion and pump efficiency. At least one cam lobe can completely occlude the tubing at all times during operation to prevent backflow. The fingers can alternatively be moved from the first position to the second position by a variety of linear actuators. 1. A pump system for pumping one or more fluids comprising: a first tubing holder for holding a length of flexible tubing; and', 'a first axle disposed in the housing;, 'a housing comprisinga plurality of fingers, each finger comprising an axle hole at a distal end of each finger, wherein each finger is pivotally coupled to the first axle; anda drive system configured to move each of the plurality of fingers sequentially from a first position to a second position;wherein each of the fingers at least partially occludes a portion of the flexible tubing in the second position.2. The pump system of claim 1 , wherein each of the fingers substantially completely occludes the portion of the flexible tubing in the second position.3. The pump system of claim 1 , wherein the tubing holder comprises a channel and a plane surface; andwherein each of the plurality of fingers compresses the flexible tubing between the finger and the plane surface when the finger is in the second position.4. The pump system of claim 3 , wherein the plane surface further comprises a resilient cover to ...

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Номер записи: 10
25-04-2013 дата публикации

DOUBLE DIAPHRAGM PUMP

Номер: US20130101445A1
Автор: Schütze Thomas
Принадлежит: Promera GmbH & Co, KG

A diaphragm pump, in which a fluid moves at least a first piston of a first piston/cylinder system back and forth, the first piston being mechanically connected to at least one other hydraulic piston and the hydraulic piston driving at least one diaphragm by a hydraulic medium. 129.-. (canceled)30. A diaphragm pump , in which a fluid moves at least a first piston of a first piston/cylinder system back and forth , the first piston being mechanically connected to at least one other hydraulic piston and the hydraulic piston driving at least one diaphragm of the diaphragm pump by means of a hydraulic medium ,wherein the diaphragm pump is a dual-diaphragm pump having at least two diaphragms, a hydraulic medium moving or driving the diaphragms, at least one hydraulic piston moving the hydraulic medium, and in that the at least two diaphragms are mechanically connected to each other by a connection element.31. A diaphragm pump , in which a fluid moves at least a first hydraulic piston of a first piston/cylinder system back and forth , the first hydraulic piston being mechanically connected to at least one other hydraulic piston , and the hydraulic piston driving at least one diaphragm by means of a hydraulic medium.32. The diaphragm pump according to claim 31 , wherein the diaphragm pump is a dual-diaphragm pump having at least two diaphragms claim 31 , a hydraulic medium moving or driving the diaphragms claim 31 , and the at least one hydraulic piston moving the hydraulic medium.33. The diaphragm pump according to claim 32 , wherein the at least two diaphragms are mechanically connected to each other by a connection element.34. The diaphragm pump according to claim 33 , wherein the connection element is connected to the diaphragms with each of the ends of the connection element being either screwed or pressed to one of the diaphragms.35. The diaphragm pump according to claim 31 , wherein at least one of the diaphragms is arranged in a diaphragm space of a housing and ...

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Номер записи: 11
02-05-2013 дата публикации

PUMP ELEMENT FOR A TUBE PUMP

Номер: US20130108477A1
Автор: Hansen Jan Erik Vest, Molby Ole, Vestergaard Jens Brusgaard
Принадлежит: VEINUX APS

The invention relates to a tube pump comprising a tube and a pump element inserted in the tube, where the pump element comprises a rod element and a first and a second non-return valve member positioned a distance apart on the rod element. The valve members are oriented in the same direction relative to the rod element so as to allow for a fluid flow in the tube through the first valve member, along the rod element, and through the second valve member. The tube comprises an at least partly flexible tube portion between the valve members such that a repeated deformation of the flexible tube portion acts to alternately close and open the valve members thereby generating a fluid flow through the tube. The invention further relates to a pump element comprising at least two non-return valve members connected by a rod element, and for insertion in an at least partly flexible tube in such tube pump as mentioned above, thereby acting to generate a fluid flow through the tube upon repeated deformation of the tube between the two valve members. The pump element may comprise a connecting part for coupling to another tube and may comprise a sealing part establishing a fluid tight connection to a part of the tube. The invention further relates to a method for creating a flow of a fluid within an at least partly flexible tube by means of a pump element as mentioned above. 1. A tube pump comprising a tube and a pump element inserted in said tube , the pump element comprising a rod element and at least a first and a second non-return valve member positioned a distance apart on said rod element and oriented in a same direction relative to the rod element so as to allow for a fluid flow in the tube through the first valve member , along the rod element , and through the second valve member , and the tube comprising an at least partly flexible tube portion between said first and second valve members such that a repeated deformation of said flexible tube portion acts to alternately ...

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Номер записи: 12
16-05-2013 дата публикации

Pump System Having Liquid Level Sensing System and Multipurpose Frame

Номер: US20130121853A1
Автор: Kleinpeter Dewayne
Принадлежит:

A pump system especially suitable for pumping out liquids from tank enclosures. A liquid pump, Preferably powered by pressurized gas such as compressed air or natural gas from a nearby well, is mounted in a tubular member frame. The rate of pressurized gas flowing to the pump, and consequently the liquid pumping rate, is controlled by a limit valve, lever arm, and float assembly. As the liquid level increases, the float rises and the lever arm opens the limit valve, permitting a higher rate of pressurized gas flow and higher pump rate. At least some components of the frame have liquid inlet openings, which permit liquids to enter the frame, and the frame serves as a conduit to carry the liquids to the intake of the pump. 1. A pump system , comprising:a) a pump adapted to pump liquids;b) a means for controlling the liquid pumping rate of said pump, said means responsive to a level of a body of liquid to be pumped by said pump; andc) a frame in which said pump is mounted, said frame comprising hollow tubular members, at least some of said hollow tubular members comprising liquid inlet openings therein, said hollow tubular members forming a fluid flowpath from said liquid inlet openings to a liquid intake of said pump.2. The pump system of claim 1 , wherein said liquid inlet openings are disposed in one or more hollow tubular members which rest upon a support surface for said pump system.3. The pump system of claim 1 , wherein:said pump is powered by pressurized gas; andsaid means for controlling the liquid pumping rate of said pump comprises a valve controlling said pressurized gas flowing to said pump, said valve permitting an increasing pressurized gas flow rate to said pump with an increasing level of a body of liquid to be pumped by said pump, whereby said pump has an increasing liquid pumping rate in response to said increasing pressurized gas flow rate.4. The pump system of claim 2 , wherein:said pump is powered by pressurized gas; andsaid means for controlling ...

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Номер записи: 13
30-05-2013 дата публикации

Cylindrical piston assisted blending vessel

Номер: US20130133764A1
Автор: Robert Almblad, Susan Clickner
Принадлежит: Individual

A container/transport system for a viscous material includes a container for the viscous material and a transport conduit for transporting the viscous material. The container includes an outer rigid wall; an inner flexible bladder, the inner flexible bladder containing a viscous material; and a conduit connected to the inner flexible bladder to introduce a fluid into the inner flexible bladder. The transport conduit includes an outer rigid wall, an inner flexible bladder, a volume between the outer rigid wall and the inner flexible bladder containing a viscous material, and a conduit connected to the inner flexible bladder to introduce a fluid into the inner flexible bladder. A valve controls a flow of fluid from a fluid source to either the inner flexible bladder of the container or the inner flexible bladder of the transport conduit.

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Номер записи: 14
06-06-2013 дата публикации

FINGER-TYPE PERISTALTIC PUMP COMPRISING A RIBBED ANVIL

Номер: US20130142670A1
Автор: Goldor Ori, Rotem Shachar
Принадлежит: Q-CORE MEDICAL LTD.

The present invention includes a finger-type peristaltic pump with a ribbed anvil. According to some embodiments, a finger type peristaltic pump may comprise a plurality of pressing fingers, an infusion tube and a passive interfacing mechanism. The passive interfacing mechanism may comprise a channel, groove or other suitable mount for placing and mounting an infusion tube such that the pressing fingers are positioned on one side of the tube and the ribbed anvil on the opposite side. The pressing fingers may be positioned to apply an approximately perpendicular force on the tube, pressing it against the ribbed anvil, thus causing a pumping action. 1. A finger-type peristaltic pump (DDS) , comprising a plurality of pressing-fingers , infusion-tube , and a passive interfacing mechanism; wherein said passive interfacing mechanism comprising (a) a means for accommodating said flexible infusion tube and mounting said tube in a location suitable for said pressing-fingers to apply an approximated perpendicular force on said tube to squeeze it; (b) a ribbed anvil rigidly supporting said tube on opposite side to said pressing fingers when it is pressed by said finger; said anvil comprising a plurality of ribs selected from one or more ribs of a group including (i) a plurality of ribs oriented to face said fingers' tip , (ii) a plurality of ribs located in between said fingers , or (iii) any combination thereof.2. The finger-type peristaltic pump according to claim 1 , wherein by changing the heights of one or more of said ribs it is possible to calibrate the squeezed volume of the infused fluid per pumping cycle; said squeezed volume is defined by ribs of a nominal height claim 1 , so as the ratio between squeezed volume per revolution and the speed of the pumping mechanism can be calibrated.3. The finger-type peristaltic pump according to claim 1 , wherein one or more of said ribs is of a different width as compared with others ribs (reference ribs) claim 1 , so as less ...

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Номер записи: 15
11-07-2013 дата публикации

System, Method, and Apparatus for Infusing Fluid

Номер: US20130177455A1
Автор: Gray Larry B., JR. Gregory R., Kamen Dean, Kerwin John M., Langenfeld Christopher C., Lanier, Murphy Colin H., Place Michael S., Slate Michael J.
Принадлежит: DEKA Productions Limited Partnership

A peristaltic pump, and related system method are provided. The peristaltic pump includes a cam shaft, first and second pinch-valve cams, first and second pinch-valve cam followers, a plunger cam, a plunger-cam follower, a tube receiver, and a spring-biased plunger. The first and second pinch-valve cams are coupled to the cam shaft. The first and second pinch-valve cam followers each engage the first and second pinch-valve cams, respectively. The plunger cam is coupled to the cam shaft. The plunger-cam follower engages the plunger cam. The tube receiver is configured to receive a tube. The spring-biased plunger is coupled to the plunger-cam follower such that the expansion of the plunger cam along a radial angle intersecting the plunger-cam follower as the cam shaft rotates pushes the plunger cam follower towards the plunger and thereby disengages the spring-biased plunger from the tube. A spring coupled to the spring-biased plunger biases the spring-biased plunger to apply the crushing force to the tube. 1. A peristaltic pump , comprising:a cam shaft;first and second pinch-valve cams coupled to the cam shaft;first and second pinch-valve cam followers configured to engage the first and second pinch-valve cams;a plunger cam coupled to the cam shaft;a plunger-cam follower configured to engage the plunger cam;a tube receiver configured to receive a tube;a spring-biased plunger coupled to the plunger-cam follower, wherein expansion of the plunger cam along a radial angle intersecting the plunger-cam follower as the cam shaft rotates pushes the plunger cam to disengage the spring-biased plunger from the tube, and wherein a spring coupled to the spring-biased plunger biases the spring-biased plunger to apply a crushing force to the tube;a position sensor operatively coupled to the spring-biased plunger configured to determine a position of the spring-biased plunger; anda processor coupled to the position sensor, wherein the processor is configured to estimate fluid flow ...

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Номер записи: 16
11-07-2013 дата публикации

PUMPING CASSETTE

Номер: US20130177457A1
Автор: Dale James D., Demers Jason A., Grant Kevin L., Tracey Brian D., Wilt Michael J.
Принадлежит: DEKA Products Limited Partnership

A pumping cassette including a housing having at least two inlet fluid lines and at least two outlet fluid lines. At least one balancing pod within the housing and in fluid connection with the fluid paths. The balancing pod balances the flow of a first fluid and the flow of a second fluid such that the volume of the first fluid equals the volume of the second fluid. The balancing pod also includes a membrane that forms two balancing chambers. Also included in the cassette is at least two reciprocating pressure displacement membrane pumps. The pumps are within the housing and they pump the fluid from a fluid inlet to a fluid outlet line and pump the second fluid from a fluid inlet to a fluid outlet. 1. A pumping cassette comprising:a housing comprising a first fluid line including a first fluid inlet and a first fluid outlet for a first liquid flowpath configured to contain a first liquid, and a second fluid line including a second fluid inlet and a second fluid outlet for a second liquid flowpath configured to contain a second liquid;at least one balancing pod within said housing and in fluid communication with said fluid lines, said balancing pod defining a cavity in which a flexible membrane is disposed, said flexible membrane dividing the cavity between a first chamber and a second chamber, the first chamber in fluid communication with the first fluid line, and the second chamber in fluid communication with the second fluid line, wherein said second chamber is configured to receive a first volume of the second liquid from the second fluid line by expelling a substantially equal volume of the first liquid from the first chamber into the first fluid line; andat least one reciprocating positive displacement membrane pump within said housing, said membrane pump comprising an actuation chamber separated from a pumping chamber by a flexible membrane, wherein said membrane pump is in fluid communication with the second fluid line, and is configured to deliver in a pump ...

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Номер записи: 17
18-07-2013 дата публикации

SLIDING INFLATOR WITH INNER AND OUTER CYLINDERS

Номер: US20130183180A1
Автор: WANG Lopin
Принадлежит: BETO ENGINEERING AND MARKETING CO., LTD

A sliding inflator with inner and outer cylinders is provided. The outer cylinder has a fixing element with an axial pipe protruding therefrom and having two through holes. A rotating element is disposed around the axial pipe and has two receiving chambers matching the through holes, respectively, and receiving a ball each. A gradually-deepened curved portion of the receiving chamber is defined between shallow and deep ends thereof. The rotating element rotates between an unlocked position and a locked position. A stopping element is fixed to the inner cylinder and has a protruding post with an annular groove. The rotating element switches from the unlocked position to the locked position to couple the cylinders together, and switches from the locked position to the unlocked position to release engagement between the cylinders. 1. A sliding inflator with inner and outer cylinders , comprising:an outer cylinder;a nozzle connector disposed at an end of the outer cylinder;an inner cylinder inserted into the outer cylinder from another end thereof and slidable relative to the outer cylinder;a piston disposed in the inner cylinder;a piston rod having an end fixed to the piston and another end protruding from the inner cylinder;a handle disposed at the exposed end of the piston rod;a fixing element disposed at an inner end of the nozzle connector disposed at the outer cylinder and extending in a direction of the inner cylinder to form an axial pipe having at least a through hole running radially;a rotating element disposed around the axial pipe, being rotatable clockwise and anticlockwise within a predetermined range of angles, and having a receiving chamber corresponding in position to each of the at least a through hole of the axial pipe, wherein a gradually-deepened curved portion of the receiving chamber is defined between a shallow end of the receiving chamber and a deep end of the receiving chamber, each said receiving chamber receiving a ball; anda stopping element ...

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Номер записи: 18
25-07-2013 дата публикации

METHOD AND APPARATUS FOR A PERISTALTIC PUMP

Номер: US20130189120A1
Автор: Bartz Troy A., Nelson James E.
Принадлежит: CURLIN MEDICAL INC.

A method of fluid delivery from a rotary peristaltic pump is provided. It comprises providing a roller assembly having a plurality of rollers, the roller assembly having at least one anomalous range and determining a rotational position of the plurality of rollers. The method further comprises increasing a speed of the plurality of rollers when at least one of the plurality of rollers are in the anomalous range and decreasing the speed of the plurality of rollers when each of the plurality of rollers are outside the anomalous range. 1. A method of fluid delivery from a rotary peristaltic pump comprising: determining a rotational position of said plurality of rollers;', 'increasing a speed of said plurality of rollers when at least one of said plurality of rollers are in said anomalous range; and', 'decreasing the speed of the plurality of rollers when each of said plurality of rollers are outside said anomalous range., 'providing a roller assembly having a plurality of rollers, the roller assembly having at least one anomalous range;'}2. The method of claim 1 , wherein determining a rotational position of said plurality of rollers includes sensing the rotational position with at least one Hall sensor operatively connected to said rotary peristaltic pump.3. The method of claim 2 , wherein said at least one Hall sensor is connected to a rotating shaft of said pump.4. The method of claim 1 , wherein determining a rotational position of said plurality of rollers includes determining the velocity of a motor operatively connected to the roller assembly and integrating the velocity of the motor.5. The method of claim 1 , wherein a controller directs a motor operatively connected to the roller assembly to increase or decrease the speed of the plurality of rollers.6. The method of claim 1 , including intermittently stopping the rotation of said roller assembly when each of said plurality of rollers are outside said anomalous range.8. The pump of claim 7 , wherein said track ...

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Номер записи: 19
01-08-2013 дата публикации

GRAPHENE-DRUM PUMP AND ENGINE SYSTEMS

Номер: US20130195693A1
Автор: Pinkerton Joseph F.
Принадлежит: CLEAN ENERGY LABS, LLC

The present invention relates to pump systems and engine systems having graphene drums. In embodiments of the invention, the graphene drum can be utilized in the main chambers and/or valves of the pumps and engines. 184-. (canceled)85. A membrane pump comprising:(a) a membrane comprising one or more layers of an atomically thin, electrically conductive material;(b) a gate that is operable for moving the membrane from a first position to a second position.86. The membrane pump of claim 85 , wherein the membrane consists of graphene.87. The membrane pump of claim 85 , wherein the membrane comprises graphene.88. The membrane pump of claim 85 , wherein the membrane consists of carbon.89. The membrane pump of claim 85 , wherein the membrane has a thickness less than 4 nm.90. The membrane pump of claim 85 , wherein the membrane has a thickness between about 0.3 nm and 1 nm.91. A membrane pump comprising:(a) a membrane, wherein the membrane is a continuous sheet of one or more layers of an atomically thin, electrically conductive material;(b) a diaphragm element having a diaphragm that comprises a first portion of the membrane;(c) a valve element having a valve that comprises a second portion of the membrane.92. The membrane pump of claim 91 , wherein the atomically thin claim 91 , electrically conductive material consists of graphene.93. The membrane pump of claim 91 , wherein the atomically thin claim 91 , electrically conductive material comprises graphene.94. The membrane pump of claim 91 , wherein the atomically thin claim 91 , electrically conductive material consists of carbon.95. The membrane pump of further comprising:(a) a first gate, wherein the diaphragm element comprises the first gate and the first gate is operable for moving the first portion of the membrane; and(b) a second gate, wherein the valve element comprises the second gate and the second gate is operable for moving the second portion of the membrane.96. The membrane pump of further comprising a ...

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Номер записи: 20
08-08-2013 дата публикации

Pump and Valve Combination for an Article of Footwear Incorporating an Inflatable Bladder

Номер: US20130202467A1
Автор: DAVIS Paul M.
Принадлежит: Reebok International Limited

An article of footwear having a pump and valve combination for inflating an inflatable bladder. In one embodiment the pump and valve combination has a pumping area formed between top and bottom polymeric films with a foam insert located therein and an air intake hole leading into the pumping area. A conduit leads from the pumping area to an inflatable bladder and a flow restrictor is located in a pathway of the conduit. In a second embodiment the pump and valve combination has a pumping area formed between top and bottom polymeric films and a grommet. An air intake is located in the pumping area. The grommet has an exhaust hole and a flexible band arranged around the grommet, including the exhaust hole. 1. A pump and valve combination for an inflatable article comprising:a top film;a bottom film;a pumping area defined between said top and bottom films;an air intake located in said pumping area;a conduit leading from said pumping area; anda flow restrictor located in a pathway of said conduit, wherein said flow restrictor is curved;wherein said pump and valve combination has a first state wherein said flow restrictor limits air flow through said conduit and a second state wherein said conduit expands to allow air to flow from said pumping area above and/or below said flow restrictor.2. The pump and valve combination of claim 1 , further comprising an inflatable bladder defined by a sealed area between said top and bottom films outside of said pumping area.3. The pump and valve combination of claim 1 , wherein said top and bottom films are formed of a polymeric material.4. The pump and valve combination of claim 1 , wherein one of said films is textured.5. The pump and valve combination of claim 1 , wherein the pump and valve combination is for an inflatable article incorporated in an article of footwear.6. The pump and valve combination of claim 1 , wherein said air intake is a hole in one of said films.7. (canceled)8. The pump and valve combination of claim 1 , ...

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Номер записи: 21
15-08-2013 дата публикации

PERISTALTIC PUMP WITH LINEAR FLOW CONTROL

Номер: US20130209275A1
Автор: Ofer Meged, Rotem Shachar
Принадлежит: Q-CORE MEDICAL LTD.

A peristaltic pump includes a conduit having a first end for receiving a fluid from a reservoir and a second end for delivering the fluid. A plurality of fingers are disposed at respective locations along a segment of the conduit and are configured to alternately compress and release the conduit at the locations. A cyclical pump mechanism is coupled to move the fingers between respective compressed and released positions in a spatio-temporal pattern so as to drive a predetermined quantity of the fluid through the segment of the conduit in each pump cycle. A motor is coupled to drive the pump mechanism. A controller is coupled to activate and deactivate the motor in alternation during each pump cycle with a duty cycle that varies within the pump cycle. 1. A peristaltic pump , comprising:a conduit having a first end for receiving a fluid from a reservoir and a second end for delivering the fluid;a plurality of fingers, which are disposed at respective locations along a segment of the conduit and are configured to alternately compress and release the conduit at the locations;a cyclical pump mechanism, which is coupled to move the fingers between respective compressed and released positions in a spatio-temporal pattern so as to drive a predetermined quantity of the fluid through the segment of the conduit in each pump cycle;a motor, which is coupled to drive the pump mechanism; anda controller, which is coupled to activate and deactivate the motor in alternation during each pump cycle with a duty cycle that varies within the pump cycle.2. The pump according to claim 1 , wherein the pump cycle is characterized by a variation in a quantity of the fluid that is delivered per step of the motor during the pump cycle claim 1 , and wherein the controller is operative to modulate the duty cycle so that the quantity of the fluid that is delivered through the conduit per unit time over the pump cycle is constant.3. The pump according to claim 2 , wherein the controller is ...

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Номер записи: 22
22-08-2013 дата публикации

METHOD AND SYSTEM FOR GENERATING MECHANICAL WAVES

Номер: US20130216400A1
Автор: BUCHER Izhak, SETTER Eyal
Принадлежит: TECHNION RESEARCH & DEVELOPMENT FOUNDATION LIMITED

A system for generating a mechanical wave is disclosed. The system comprises a camshaft having plurality of rotatable cams, serially mounted on a shaft along an axis of an elastic tubular shell to form a varying phase angle along the shaft. The system further comprises a plurality of cam followers arranged circumferentially about each cam, such that a rotary motion of the cams generates a linear motion of the cam followers to radially bias in internal wall the shell. The variation of the phase angle is selected to generate a three-dimensional traveling wave along the shell. 1. A system for generating mechanical waves , comprising:a camshaft having plurality of rotatable cams, serially mounted on a shaft along an axis of an elastic tubular shell to form a varying phase angle along said shaft; anda plurality of cam followers arranged circumferentially about each cam, such that a rotary motion of said cams generates a linear motion of said cam followers to radially bias in internal wall said shell;wherein said variation of said phase angle is selected to generate a three-dimensional traveling wave along said shell.2. The system of claim 1 , wherein said variation of said phase angle is selected such that a variation of a torque on said shaft during said rotation is below a predetermined threshold.3. The system of claim 1 , further comprising a plurality of arcs respectively mounted on said plurality of cam followers claim 1 , such that said arcs engage said internal wall during at least part of said linear motion.4. The system of claim 1 , wherein a number and separation of said cams along said shaft is selected such that kL/λ is generally an integer claim 1 , where k is an integer claim 1 , L is a length of said camshaft and λ is a wavelength of said wave.5. The system of claim 1 , wherein a number and separation of said cams along said shaft is selected such that kL/(λN) is non-integer claim 1 , where k is an integer claim 1 , L is a length of said camshaft claim 1 , ...

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Номер записи: 23
12-09-2013 дата публикации

DISC PUMP WITH ADVANCED ACTUATOR

Номер: US20130236338A1
Автор: Locke Christopher Brian, Tout Aidan Marcus
Принадлежит: KCI Licensing, Inc.

A two-cavity pump having a single valve in one cavity and a bidirectional valve in another cavity is disclosed. The pump has a side wall closed by two end walls for containing a fluid. An actuator is disposed between the two end walls and functions as a portion of a common end wall of the two cavities. The actuator causes an oscillatory motion of the common end walls to generate radial pressure oscillations of the fluid within both cavities. An isolator flexibly supports the actuator. The first cavity includes the single valve disposed in one of a first and second aperture in the end wall to enable fluid flow in one direction. The second cavity includes the bidirectional valve disposed in one of a third and fourth aperture in the end wall to enable fluid flow in both directions. 1. A pump comprising:a pump body having pump walls substantially cylindrical in shape and having a side wall closed by two end walls for containing a fluid;an actuator disposed between the two end walls and being a first portion of a common end wall forming a first cavity and a second cavity, each cavity having a height (h) and a radius (r), wherein a ratio of the radius (r) to the height (h) is greater than about 1.2, the actuator operatively associated with a central portion of the common end walls and adapted to cause an oscillatory motion of the common end walls at a frequency (f), thereby generating radial pressure oscillations of the fluid within both the first cavity and the second cavity;an isolator extending from the periphery of the actuator to the side wall as a second portion of the common wall and flexibly supporting the actuator;a first aperture disposed at a location in the end wall associated with the first cavity and extending through the pump wall;a second aperture disposed at another location in the end wall associated with the first cavity and extending through the pump wall;a first valve disposed in one of the first and second apertures to enable the fluid to flow ...

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Номер записи: 24
19-09-2013 дата публикации

Pump

Номер: US20130243622A1
Автор: Grapes Robert Donald
Принадлежит: Precision Dispensing Systems Limited

A pump that has a cavity () in which is located a non-elastomeric membrane (). An inlet () opens into the cavity () and is associated with a valve (). A valve () is likewise provided in an outlet (). Also opening into cavity () is a port () to which a negative or positive pressure can be applied whereby the membrane () can be moved between its two stable states corresponding to completion of inlet and exhaust of a pumping cycle. 1. A membrane pump including:i. an elongate cavity with opposing surfaces and having a ratio of width to depth in the range 8:1 to 16:1, where the depth is measured from one opposing surface to a mid-point of the cavity;ii. inlet and outlet passages communicating with the cavity;iii. a pressure port connected to the cavity; andiv. a pre-deformed non-elastomeric membrane located within the cavity; a) has a first stable state in contact with one of the opposing surfaces, the first stable state corresponding to completion of an inlet stage of a pumping cycle;', 'b) has a second stable state in contact with the other opposing surface, the second stable state corresponding to completion of an exhaust stage of a pumping cycle; and', 'c) can be caused to invert from one stable state to the other stable state by application of positive or negative pressure to the cavity via the pressure port., 'wherein the pre-deformed non-elastomeric membrane2. A pump as claimed in wherein the ratio of width to depth is in the range 10:1 to 14:1.3. A pump as claimed in wherein the ratio of width to depth is around 12:1.4. A pump as claimed in wherein the non-elastomeric membrane is formed of a non-elastomeric sheet material.5. A pump as claimed in wherein the non-elastomeric membrane is resistant to corrosion by chemicals.6. A pump as claimed in wherein the non-elastomeric membrane is formed from a non-elastomeric fluoropolymer.7. A pump as claimed in wherein the non-elastomeric membrane is formed from one of: polytetrafluoroethylene claim 1 , perfluoroalkoxy ...

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Номер записи: 25
19-09-2013 дата публикации

UNIFORM FLOW DISPLACEMENT PUMP

Номер: US20130243631A1
Автор: Diaz Conrad O., Pelmulder John P.
Принадлежит: International Remote Imaging Systems, Inc.

A displacement pump comprising a pump assembly and a cassette assembly. The pump assembly includes upper and lower housing portions that define a cavity, an arm disposed in the cavity, a roller attached to the distal end of the arm, and a motor attached to the proximal end of the arm for rotating the arm. The cassette assembly is removably disposed in the cavity and comprises upper and lower cassette housing portions that form an annular compression surface with a channel therein. A hollow compression tube having a flange extending along a length thereof is secured to the compression surface by the flange being engaged with the channel. As the motor rotates the roller arm, the roller presses the compression tube against the compression surface to create a moving occlusion of the compression tube for pushing fluid through the compression tube. 113-. (canceled)14. A pump , comprising:{'b': 20', '20', '26', '20', '20', '20', '20, 'i': a,', 'b', 'b', 'a', 'a,', 'b, 'a pump housing () that defines a cavity (), the pump housing including a first pump housing portion () and a second pump housing portion (), the pump housing portions () being engageable with one another to close the pump housing and being separable from one another to open the pump housing;'}{'b': 56', '26', '58, 'a compression surface () within the cavity () and having a channel () formed therein;'}{'b': 60', '56', '62', '62', '58, 'a hollow compression tube () secured to the compression surface (), the hollow compression tube including a flange () extending along a length thereof, and the flange () being removably engaged with the channel () for securing the compression tube to the compression surface;'}{'b': 28', '29', '26', '60', '56', '28', '29', '29', '28', '29', '20', '20, 'i': a,', 'b, 'compression means (, ) within the cavity () for incrementally compressing the compression tube () against the compression surface () to create a moving occlusion of the compression tube that uniformly pushes fluid ...

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Номер записи: 26
19-09-2013 дата публикации

FLUID TRANSPORTING DEVICE OF THE PERISTALTIC TYPE WITH A PUSH PIN AND PUSH PLATE ARRANGEMENT

Номер: US20130243632A1
Автор: Kawasumi Kazuo, MIYAZAKI Hajime, USHIKOSHI Kenichi
Принадлежит: SEIKO EPSON CORPORATION

A fluid transporting device includes an elastic tube, a tube frame that holds the elastic tube in an arc, a rotary push plate arranged in the arc for facilitating fluid flow inside the elastic tube, and a plurality of push pins disposed between the elastic tube and the center of the arc. Each push pin includes a semispherical end portion that contacts the rotary push plate, a pushing end portion that places a bias on the elastic tube, and adjacent end portions of at least two push pins close the elastic tube when the semispherical end portions are pushed by an outer circumference arc of the rotary push plate. 1. A fluid transporting device , comprising:an elastic tube;a tube frame that holds the elastic tube in an arc;a plurality of push pins disposed on one side of the elastic tube; anda rotary push plate arranged for facilitating fluid flow inside the elastic tube from an inlet to an outlet by pushing the plurality of push pins sequentially, the rotary push plate including;a plurality of protrusions that place a bias on the elastic tube by pushing the plurality of push pins sequentially; anda recess disposed between the plurality of protrusions that releases the bias from the elastic tube, a semispherical end portion that contacts the rotary push plate; and', 'a pushing end portion that places the bias on the elastic tube; and, 'wherein the push pins each includeeach of the protrusions includes an arc that merges into a first slope that terminates at an outer circumference arc that contacts the semispherical end portion of the push pin, and a second slope that extends away from the outer circumference arc.2. A fluid transporting device as set forth in claim 1 , whereina material of a case of the fluid transporting device has an organic matching property.3. A fluid transporting device as set forth in claim 1 , whereinat least one of the push pins places the bias on the elastic tube.4. A fluid transporting device as set forth in claim 1 , further comprising:a fluid ...

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Номер записи: 27
19-09-2013 дата публикации

FLUID TRANSPORTING DEVICE OF THE PERISTALTIC TYPE WITH A PUSH PIN AND PUSH PLATE ARRANGEMENT

Номер: US20130243633A1
Автор: Kawasumi Kazuo, MIYAZAKI Hajime, USHIKOSHI Kenichi
Принадлежит: SEIKO EPSON CORPORATION

A fluid transporting device includes an elastic tube, a tube frame that holds the elastic tube in an arc, a rotary push plate arranged in the arc for facilitating fluid flow inside the elastic tube, and a plurality of push pins disposed between the elastic tube and the center of the arc. Each push pin includes a semispherical end portion that contacts the rotary push plate, a pushing end portion that places a bias on the elastic tube, and adjacent end portions of at least two push pins close the elastic tube when the semispherical end portions are pushed by an outer circumference arc of the rotary push plate. 1. A fluid transporting device , comprising:an elastic tube;a tube frame that holds the elastic tube in an arc;a rotary push plate; anda plurality of push pins disposed between the elastic tube and the center of the rotary push plate; 'an outer circumference arc surface, which pushes the pushing end portions of at least two pieces of the push pins at the same stroke.', 'wherein the rotary push plate has a plurality of protrusions for facilitating fluid flow inside the elastic tube, each protrusion includes2. The fluid transporting device as set forth in claim 1 , further comprising:a fluid storing container coupled to the elastic tube. This application is a divisional of U.S. patent application Ser. No. 13/412,066 filed Mar. 5, 2012, which is a divisional of U.S. patent application Ser. No. 12/617,771 filed Nov. 13, 2009, now U.S. Pat. No. 8,157,546 issued Apr. 17, 2012, which is a divisional of U.S. patent application Ser. No. 11/795,994 filed on Sep. 28, 2007, now U.S. Pat. No. 7,950,908 issued May 31, 2011, which is a National Stage of PCT/JP2006/301398 filed Jan. 24, 2006. This application claims the benefit of Japanese Patent Application No. 2005-017932 filed Jan. 26, 2005. The disclosures of the above applications are incorporated herein by reference.The present invention relates to a fluid transporting device and a fluid transporter provided with the ...

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Номер записи: 28
10-10-2013 дата публикации

Methods and Systems for Applying Charge to a Piezoelectric Element

Номер: US20130266460A1
Автор: Herman Lee Renger, Sam William Bowman, IV
Принадлежит: ALFRED E MANN FOUNDATION FOR SCIENTIFIC RESEARCH

Methods and systems for applying charge to a piezoelectric element include and/or facilitate implementation of processes including cyclical multi-stage processes for: providing a piezoelectric element with an accumulated charge; providing one or more charge holding elements with a scavenged charge from the piezoelectric element; substantially removing or discharging a remaining charge from the piezoelectric element; and applying the scavenged charge to the piezoelectric element with an opposite polarity in relation to the polarity of the remaining charge.

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Номер записи: 29
10-10-2013 дата публикации

ACTUATOR SUPPORT STRUCTURE AND PUMP DEVICE

Номер: US20130266461A1
Автор: HIRATA Atsuhiko, KODAMA Yukiharu, OMORI Kenta
Принадлежит:

A piezoelectric pump includes a leaf spring including a disc portion defining an actuator, an outer frame portion defining a housing, and an elastic support portion. The actuator flexurally vibrates from a center portion of a principal surface thereof to an outer periphery thereof. The elastic support portion includes a beam portion and connection portions and elastically supports the disc portion on the outer frame portion. The beam portion extends in a gap between the disc portion and the outer frame portion in a direction along an outer periphery of the disc portion. A first of the connection portions connects the beam portion to the disc portion. Second and third connection portions are offset from the first connection portion and connect the beam portion to the outer frame portion. 1. An actuator support structure comprising:a plate-shaped actuator arranged to flexurally vibrate from a center portion of a principal surface thereof to an outer peripheral portion thereof;a side wall surrounding an outer periphery of the actuator; andat least one elastic support portion elastically supporting the outer periphery of the actuator to the side wall; wherein a beam portion extending in a gap between the actuator and the side wall in a direction along the outer periphery of the actuator;', 'an actuator connection portion connecting the beam portion to the actuator; and', 'a side wall connection portion provided in a position offset from the actuator connection portion in the direction along the outer periphery of the actuator and connecting the beam portion to the side wall., 'the at least one elastic support portion includes2. The actuator support structure according to claim 1 , wherein the beam portion is connected to the actuator via the actuator connection portion at a position adjacent to a loop of natural vibrations when the side wall connection portion defines a fixing portion claim 1 , and a natural vibration frequency of the natural vibrations corresponds or ...

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Номер записи: 30
17-10-2013 дата публикации

DIAPHRAGM WITH PASSIVE FLOW RATE CONTROL FOR COMPRESSION STAGE

Номер: US20130272909A1
Автор: Nawrocki Gilles
Принадлежит:

A diaphragm for the compression stage of a compressor comprises a set of at least one through passage () extending between two mutually opposite faces () of the diaphragm, so as to create a flow of gas between said faces depending on the pressure difference prevailing on either side of the diaphragm. 19678. A diaphragm for the compression stage of a compressor , characterized in that it comprises a set of at least one through passage () extending between two mutually opposite faces ( , ) of the diaphragm , so as to create a flow of gas between said faces depending on the pressure difference prevailing on either side of the diaphragm and in that it comprises a set of passages arranged regularly in the diaphragm and each extending , on one of the faces of the diaphragm , between two fixed blades () provided on the diaphragm , the number of passages corresponding to the number of fixed blades of the diaphragm.242549679. A compression stage of a compressor comprising a diaphragm () receiving a gas supplied at the input of said stage , a bladed wheel () ensuring a compression of the gas obtained from the diaphragm and an output diffuser () , characterized in that the diaphragm () comprises a set of at least one through passage () extending between a first face () of the diaphragm directed towards the suction of gas into the compression stage and a second face () directed towards the diffuser so as to create a flow of gas between the diffuser and the area of gas intake into the diaphragm , and in that it comprises a set of passages () arranged regularly in the diaphragm and each extending , on one of the faces of the diaphragm , between two fixed blades provided on the diaphragm , the number of passages corresponding to the number of fixed blades of the diaphragm.3. A compressor claim 1 , characterized in that it comprises one or more diaphragms according to . This application claims priority under 35 U.S.C. §119(a) to French Patent Application No. 1253314, filed Apr. 11, ...

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Номер записи: 31
24-10-2013 дата публикации

Structure for bonding metal plate and piezoelectric body and bonding method

Номер: US20130276977A1
Автор: Hideo Nakagoshi, Hiroki Kitayama, Kiyoshi Kurihara
Принадлежит: Murata Manufacturing Co Ltd

A bonding structure that provides excellent conductivity and bonding between a piezoelectric body and a metal plate includes a metal plate and an electrode of a piezoelectric body bonded to one another with an electrically conductive adhesive so as to provide electrical conductivity, the electrically conductive adhesive includes carbon black with a nano-level average particle size, and has a paste form included in a solventless or solvent-based resin so that the carbon black forms an aggregate with an average particle size of about 1 μm to about 50 μm. The electrically conductive adhesive is applied between the metal plate and the electrode of the piezoelectric body, and the metal plate and the piezoelectric body are subjected to heating and pressurization so that the carbon black aggregate is deformed, thereby hardening the electrically conductive adhesive.

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Номер записи: 32
24-10-2013 дата публикации

METHODS AND DEVICES FOR MODULATION OF THE OPERATING POINT OF LIQUID PUMPS IN MEDICAL TREATMENT DEVICES

Номер: US20130280104A1
Автор: Heide Alexander, KOPPERSCHMIDT Pascal, MOISSL Ulrich, Wehmeyer Wolfgang, Wiktor Christoph
Принадлежит:

The invention relates to the field of fluid pumps and medical treatment devices, in particular dialysis machines. The object of the invention is to design methods and devices such that the operating pressures and flow rates of the fluid pumps assume the desired characteristics, in particular constant values or controlled profiles. This object is achieved in that the operating point of a peristaltic hose roller pump is adjusted based on the angle of rotation of the pump rotor or by adjusting the operating point of a centrifugal pump in accordance with a profile. 1. A device consisting of a peristaltic pump with a rotor and a control unit which controls the peristaltic pump , wherein the control unit is equipped to alter the operating point of the pump as a function of the angle formed by the rotor with any stationary point.2. The device consisting of a centrifugal pump and a medication dosing device , which is driven by the centrifugal pump and a control unit , which controls the centrifugal pump such that the control unit is equipped to alter the operating point of the centrifugal pump according to a profile , which includes at least one change from a first operating point to a second operating point and a change from the second operating point to the first or a third operating point , wherein the second operating point is characterized at least by an operating parameter which is greater or less than this operating parameter of the first and third operating points.3. The device according to claim 1 , wherein the control unit is equipped to vary the operating point of the peristaltic pump or the centrifugal pump in accordance with a calibration profile and to record at least one operating parameter and assign it to the respective operating point.4. The device according to having a medication dosing device claim 1 , wherein the control unit is equipped to induce the dispensing of medication in a controlled manner by varying the operating point of the peristaltic pump ...

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Номер записи: 33
31-10-2013 дата публикации

CONTROL UNIT, TUBE UNIT, AND MICROPUMP

Номер: US20130287606A1
Автор: Kawasumi Kazuo, MIYAZAKI Hajime
Принадлежит:

A micropump including a tube unit including an elastic tube disposed in an arc shape, a plurality of fingers disposed radially from the arc shape of the tube, and a guide frame, which holds the tube and the plurality of fingers. The micropump also includes a control unit including a cam that presses the plurality of fingers, a drive section that applies torque to the cam, a control circuit that carries out a drive control of the drive section, and a machine casing that holds the cam, drive section, and control circuit. The tube unit is mountable in and removable from the control unit in a direction approximately parallel to the plane of rotation of the cam, and is mounted inside a space provided in the machine casing. 1. A micropump comprising:a tube unit including a tube, and a plurality of fingers;a control unit including a cam, and a control circuit;wherein the tube unit has a power source which supplies electric power to the control circuit, and the tube deforms via the plurality of fingers in accordance to the rotation of the cam driven by the control circuit.2. The micropump according to claim 1 ,wherein the power source is removably mounted in the tube unit. This application is a divisional of U.S. patent application Ser. No. 12/542,751 filed on Aug. 18, 2009. This application claims the benefit of Japanese Patent Application No. 2008-249798 filed Sep. 29, 2008. The disclosures of the above applications are incorporated herein by reference.1. Technical FieldThe present invention relates to a tube unit, a control unit, and a micropump configured with them mounted thereon.2. Related ArtAs an apparatus which transports a liquid at a low speed, there is a peristaltic drive type pump. As the peristaltic drive type pump, a structure is known in which a rotor including a plurality of rollers is rotated with a step motor as a drive source, and the rotor rotates along a soft tube while causing the plurality of rollers to roll, carrying out a suction and discharge of a ...

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Номер записи: 34
21-11-2013 дата публикации

DIAPHRAGM PUMP, AND EXHAUST-GAS AFTERTREATMENT SYSTEM HAVING A DIAPHRAGM PUMP

Номер: US20130309108A1
Автор: Haeberer Rainer
Принадлежит: ROBERT BOSCH GMBH

Diaphragm pump for delivering a fluid, in particular an exhaust-gas aftertreatment medium, such as an aqueous urea solution for example, comprising a working chamber () which is delimited by a working diaphragm () and which can be connected via a first valve () to an inlet () and via a second valve () to an outlet (), and an electromagnet () which comprises a coil assembly () and an armature () which interacts with the coil assembly () and is operatively connected to the working diaphragm (). According to the invention, the valves () are configured in a valve plate () which is arranged between the coil assembly () and the armature (). Exhaust-gas aftertreatment system having a diaphragm pump of this type. 112345678982351089. A diaphragm pump for delivering a fluid , comprising a working chamber () , which is delimited by a working diaphragm () and which is configured be connected via a first valve () to an inlet () and via a second valve () to an outlet () , and an electromagnet () which comprises a coil assembly () and an armature () which interacts with the coil assembly () and is operatively connected to the working diaphragm () , wherein the first and second valves ( , ) are configured in a valve plate () which is arranged between the coil assembly () and the armature ().2101179. The diaphragm pump according to claim 1 , wherein the valve plate () is at least partially embedded in a housing () of the electromagnet () or in the armature ().310212. The diaphragm pump according to claim 1 , wherein at least one of the valve plate () and the working diaphragm () comprise damping grooves () claim 1 , which are arranged circumferentially.4101314117. The diaphragm pump according to claim 1 , wherein the valve plate () is covered at least partially on one side or both sides by at least one additional plate ( claim 1 , ) which consists of a non-magnetic material and/or is welded to the housing () of the electromagnet ().591598. The diaphragm pump according to claim 1 , ...

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Номер записи: 35
28-11-2013 дата публикации

PERISTALTIC PUMP TUBING SECURING SYSTEM

Номер: US20130315763A1
Автор: Neoh Wen Hong, Rugenstein Tyson, Taylor James
Принадлежит:

Arrangements for connecting a fluid carrying tube to a peristaltic pump and/or a patient are disclosed. In some aspects, the disclosure provides arrangements that prevent the misloading of a tube in a peristaltic pump and/or misconnection of a tube to the patient that may cause a peristaltic pump to pump fluid in an undesired direction (e.g., unintentionally into or out of a patient). Tubing securing clip arrangements are disclosed as well as kits comprising tubing and clips. Other embodiments are disclosed. 1. A peristaltic pump , comprising:a rotor assembly and a mounting arrangement associated with the rotor assembly;said mounting arrangement having a first mounting area and a second mounting area;said first mounting area being mateable with a first mating member; andsaid second mounting area being mateable with a second mating member;wherein the first and second mating members are arranged to retain a fluid-carrying tube; andwherein said first mounting area is arranged to prevent said first mounting area from mating with the second mating member.2. The pump of claim 1 , further comprising:a stop member in said first mounting area that prevents said first mounting area from mating with the second mating member.3. The pump of claim 2 , further comprising:a locking area in said first mounting area arranged to receive a catch of the first mating member.4. The pump of claim 1 , wherein:said second mounting area is arranged to prevent said second mounting area from mating with the first mating member.5. The pump of claim 4 , further comprising:a stop member in said second mounting area that prevents said second mounting area from mating with the first mating member.6. The pump of claim 1 , further comprising:a locking area in said second mounting area arranged to receive a catch of the second mating member.7. The pump of claim 1 , further comprising:a tube deflecting portion on said first mounting area wherein the fluid-carrying tube is contorted between said tube ...

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Номер записи: 36
05-12-2013 дата публикации

FLUID CONTROL APPARATUS AND METHOD FOR ADJUSTING FLUID CONTROL APPARATUS

Номер: US20130323085A1
Автор: HIRATA Atsuhiko, OMORI Kenta
Принадлежит: MURATA MANUFACTURING CO., LTD.

In a method for adjusting a fluid control apparatus, in a pressing step, a piezoelectric pump is placed on a stage with a cover plate facing upward, the stage is moved up, and a center portion of a principal surface of the cover plate on a side opposite to a diaphragm is pressed with a pressing pin. As a result, the cover plate and the base plate are shaped so as to warp convexly toward the diaphragm side, and a portion joined to a flexible plate is pulled, such that the flexible plate is caused to warp convexly toward the diaphragm side. Thus, residual tensile stress occurs in a movable portion of the flexible plate. Therefore, due to the residual tensile stress, the tensile stress of the movable portion of the flexible plate is increased. 1. (canceled)2. A fluid control apparatus comprising:a diaphragm unit including a diaphragm and a frame plate surrounding a periphery of the diaphragm;a driver arranged on a principal surface of the diaphragm to vibrate the diaphragm;a flexible plate including a hole and joined to the frame plate so as to face another principal surface of the diaphragm; anda cover member joined to a principal surface of the flexible plate on a side opposite to the diaphragm; whereintensile stress is added to the flexible plate by the cover member.3. The fluid control apparatus according to claim 2 , whereinthe cover member includes a recess located at a center or approximately center thereof; andthe flexible plate includes a movable portion that faces the recess of the cover member and flexurally vibrates, and a fixed portion that is joined to the cover member.4. The fluid control apparatus according to claim 2 , wherein the cover member is an integral structure including a base plate that is joined at one principal surface thereof to the principal surface of the flexible plate on the side opposite to the diaphragm and includes an opening located at a center or approximate center thereof claim 2 , and a cover plate that is provided on another ...

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Номер записи: 37
19-12-2013 дата публикации

PUMP DEVICES AND METHODS FOR USING THE SAME

Номер: US20130336824A1
Автор: Boes Erwin, De Regt Jeroen D.
Принадлежит: MEADWESTVACO CALMAR, INC.

A simplified pump system may include a bellow having a suction valve, a stem, and a fluid lock wherein the product flow into and out of a pump chamber formed by the bellow and stem is controlled by the suction valve and fluid lock. 1. A pump system , comprising:a base;a bellow resting on the base;a stem resting on the bellow and extending through an opening in the base; anda fluid lock attached to a stem portion extending through the opening in the base.2. A pump system , comprising:a base;an opening in the base;a bellow comprising a suction valve and an upper lip;a stem comprising a top portion, a neck, and an end portion, wherein the top portion is configured to seat next to the upper lip of the bellow, the neck extends through the suction valve, and the end portion extends through the opening in the base; anda guide in communication with the bellow.3. The pump system of claim 2 , further comprising a container connected to the base.4. The pump system of claim 3 , wherein the container further comprises a container selected from the group consisting of a bottle claim 3 , an airless bottle claim 3 , a bag and a tube.5. The pump system of claim 2 , wherein the bellow comprises a material selected from the group consisting of silicon claim 2 , TPE claim 2 , TPU claim 2 , and an elastomer.6. The pump system of claim 2 , further comprising a pump head.7. The pump system of claim 2 , further comprising an attachment mechanism.8. The pump system of claim 2 , further comprising a dip tube.9. The pump system of claim 2 , wherein the guide comprises a pump head.10. The pump system of claim 2 , further comprising a fluid lock attached to the end portion of the stem.11. The pump system of claim 2 , further comprising a tube connected to the base.12. The pump system of claim 2 , further comprising a container selected from the group consisting of a tube claim 2 , bag claim 2 , airless bottle claim 2 , and bottle attached to the base. This application claims the benefit of, and ...

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Номер записи: 38
26-12-2013 дата публикации

LIQUID FEED PUMP AND FLOW CONTROL DEVICE

Номер: US20130343909A1
Автор: NITTA Shinichi
Принадлежит: CKD CORPORATION

A liquid feed pump includes a pump housing, a diaphragm forming a pump chamber together with the recessed portion surface and partitioning the pump chamber from the hole, a reciprocating member reciprocatably inserted into the hole and reciprocating to press the diaphragm to deform, a driving member displacing the reciprocating member periodically in a direction of reciprocation, a seal portion sandwiching the diaphragm to seal the diaphragm in a position around an outer peripheral side of the recessed portion surface, a diaphragm receiving surface provided between the seal portion and the opening portion, and its contact area contacting the diaphragm decreases in response to an increase in the displacement of the reciprocating member to the recessed portion surface side and increases in response to an increase in the internal pressure of the pump chamber. 1. A liquid feed pump comprising:a pump housing formed with a columnar hole, a recessed portion surface opposing an opening portion of the hole and a peripheral portion of the hole, an intake passage having an intake port in the recessed portion surface, and a discharge passage having a discharge port in the recessed portion surface;a diaphragm that forms a pump chamber together with the recessed portion surface and partitions the pump chamber from the columnar hole;a reciprocating member reciprocatably inserted into the hole, and configured to reciprocate to press the diaphragm such that the diaphragm deforms;a driving member configured to displace the reciprocating member periodically in a direction of reciprocation of the reciprocating member and vary a stroke of the reciprocation;a seal portion configured to sandwich the diaphragm to seal the diaphragm in a position around an outer peripheral side of the recessed portion surface; anda diaphragm receiving surface provided between the seal portion and the opening portion, the diaphragm receiving surface of which a contact area contacting the diaphragm varies in ...

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Номер записи: 39
26-12-2013 дата публикации

PUMP CHAMBER CONFIGURED TO CONTAIN A RESIDUAL FLUID VOLUME FOR INHIBITING THE PUMPING OF A GAS

Номер: US20130343936A1
Автор: Gray Larry B.
Принадлежит: DEKA Products Limited Partnership

The present invention involves, in some embodiments, mechanisms and methods of occluding collapsible tubing with an occluder to prevent fluid flow therethrough. In some embodiments, a tube occluding mechanism is disclosed that includes a bendable occluding member for creating a force that can be applied to a collapsible tube to occlude the tube. In some embodiments, the collapsible tube can be an inlet/outlet tube on a removable pumping cartridge that is coupled to a reusable pump drive component when the system is in operation. In such embodiments, the occluding mechanism can be attached to the reusable component and can be used to block fluid flow to and from the pumping cartridge. In some embodiments, the occluding member can comprises a spring plate which can create a force to occlude tubing when in a relaxed, unbent configuration, and which can be bent to unocclude the tubing. In some preferred embodiments, in a default configuration of the tube occluder mechanism (when no external force is applied to the occluding member) the tubes are occluded, so that the tube occluder mechanism provides a fail-safe configuration preventing fluid flow to and from a pumping cartridge to which the tubes can be connected. 1. A pump chamber for pumping fluid , comprising:a movable membrane positioned opposite a rigid inner wall to form the pump chamber, the membrane configured and positioned within the pump chamber to move fluid out of the pump chamber through an outlet of the pump chamber as the membrane moves toward the inner wall from a first position to a second, fully extended position, wherein when in the second position, at least a portion of the membrane is prevented from contacting the inner wall so that a residual volume able to contain fluid remains within the pump chamber.2. The pump chamber of claim 1 , wherein the residual volume of the fluid within the pump chamber prevents all of the fluid within the pump chamber from being expelled through the outlet.3. The pump ...

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Номер записи: 40
02-01-2014 дата публикации

ELECTROMAGNETIC VIBRATING DIAPHRAGM PUMP

Номер: US20140003978A1
Автор: Ishii Hideki, Takamichi Tsuyoshi
Принадлежит: TECHNO TAKATSUKI CO., LTD.

An object of the present invention is to provide an electromagnetic vibrating diaphragm pump with a draining structure which is a simple structure and can easily drain water having flowed into the pump without providing a separate member for preventing inflow of water. A first communicating passage P is formed at a bottom end of a partition wall W between a suction chamber and a compression chamber and a bottom portion inside the suction chamber slopes down toward the first communicating passage P such that the compression chamber side thereof is lower than the suction chamber side; a second communicating passage P is formed at a bottom end of a partition wall W between an exhaust chamber and the compression chamber and a bottom portion 61inside the compression chamber slopes down toward the second communicating passage such that the exhaust chamber side thereof is lower than the compression chamber side; and a bottom portion inside the exhaust chamber slopes down toward the exhaust port such that the exhaust port side is made lower, and the exhaust port slopes down such that an outlet side thereof is made lower. 1. An electromagnetic vibrating diaphragm pump comprising:magnetic coil portions connected to an alternating-current power source,an oscillator being equipped with a permanent magnet and being driven so as to make a reciprocating motion by applying an alternating voltage to the magnetic coil portions,diaphragms connected to both ends of the oscillator, andpump casings provided with a suction port and an exhaust port for a fluid,wherein each of the pump casings is provided with:a suction chamber provided on an upper side of the pump casing and communicating with the suction port,an exhaust chamber provided on a lower side of the pump casing and communicating with the exhaust port, anda compression chamber communicating with the suction chamber via a suction valve and communicating with the exhaust chamber via an exhaust valve, wherein an inside pressure ...

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Номер записи: 41
02-01-2014 дата публикации

FLUID TRANSPORTING DEVICE OF THE PERISTALTIC TYPE WITH A PUSH PIN AND PUSH PLATE ARRANGEMENT

Номер: US20140003984A1
Автор: Kawasumi Kazuo, MIYAZAKI Hajime, USHIKOSHI Kenichi
Принадлежит: SEIKO EPSON CORPORATION

A fluid transporting device includes an elastic tube, a tube frame that holds the elastic tube in an arc, a rotary push plate arranged in the arc for facilitating fluid flow inside the elastic tube, and a plurality of push pins disposed between the elastic tube and the center of the arc. Each push pin includes a semispherical end portion that contacts the rotary push plate, a pushing end portion that places a bias on the elastic tube, and adjacent end portions of at least two push pins close the elastic tube when the semispherical end portions are pushed by an outer circumference arc of the rotary push plate. 1. A fluid transporting device , comprising:a tube; andat least two push pins disposed in the vicinity of the tube;wherein one end portion of the push pin is bigger than other end of the push pin, and the one end portion of the push pin deforms the tube.2. The fluid transporting device as set forth in claim 2 , wherein the other end portion of the push pin is pushed by a rotary push plate. This application is a divisional of U.S. patent application Ser. No. 13/412,066 filed Mar. 5, 2012, which is a divisional of U.S. patent application Ser. No. 12/617,771 filed Nov. 13, 2009, now U.S. Pat. No. 8,157,546 issued Apr. 17, 2012, which is a divisional of U.S. patent application Ser. No. 11/795,994 filed on Sep. 28, 2007, now U.S. Pat. No. 7,950,908 issued May 31, 2011, which is a National Stage of PCT/JP2006/301398 filed Jan. 24, 2006. This application claims the benefit of Japanese Patent Application No. 2005-017932 filed Jan. 26, 2005. The disclosures of the above applications are incorporated herein by reference.The present invention relates to a fluid transporting device and a fluid transporter provided with the fluid transporting device.In the prior art, as a first conventional technique, there is known a tube pump (JP-A-10-220357) as a fluid transporting device of a writhing type, in which a tube for feeding a fluid is interposed between a plurality of rollers ...

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Номер записи: 42
09-01-2014 дата публикации

Systems and methods for supplying reduced pressure using a disc pump with electrostatic actuation

Номер: US20140010673A1
Автор: Aidan Marcus Tout, Christopher Brian Locke
Принадлежит: Kci Licensing Inc

A disc pump includes a pump body having a cavity for containing a fluid. The disc pump also includes an actuator adapted to hold an electrostatic charge to cause an oscillatory motion at a drive frequency. The disc pump further includes a conductive plate positioned to face the actuator outside of the cavity and adapted to provide an electric field of reversible polarity, the conductive plate being electrically associated with the actuator to cause the actuator to oscillate at the drive frequency in response to reversing the polarity of the electric field. The disc pump further includes a valve disposed in at least one of a first aperture and a second aperture in the pump body. The oscillation of the actuator at the drive frequency causes fluid flow through the first aperture and the second aperture when in use.

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Номер записи: 43
09-01-2014 дата публикации

PUMP FOR STERILISATION APPARATUS

Номер: US20140010675A1
Автор: Kent Barry, Turner Jeremy Peter
Принадлежит:

A peristaltic pump () for use in a sterilisation apparatus () comprises: a flexible pump hose () having an outlet end and an inlet end, and an electrically conductive fitting () at each end; a motor-driven impeller () disposed in relation to the pump hose () such that when the impeller () is driven it will intermittently bear against the pump hose () so as to bring the internal walls of the pump hose together (); a first electrode () in contact with the conductive fitting () at the outlet end of the pump hose (), and a second electrode () in contact with the conductive fitting () at the inlet end of the pump hose (); means () for applying a voltage across the first and second electrodes (); and means () for measuring an electrical property between the conductive fittings (). Other aspects of the invention provide a sterilisation apparatus including the pump, and a method of using the sterilisation apparatus. 1. A peristaltic pump for use in sterilising the lumen of an endoscope in a sterilisation compartment of a sterilisation apparatus , the pump comprising:a flexible pump hose having an outlet end and an inlet end, and an electrically conductive fitting at each end in contact with fluid in the pump hose;a motor-driven impeller disposed in relation to the pump hose such that when the impeller is driven it will intermittently bear against the pump hose so as to bring the internal walls of the pump hose together;a first electrode in contact with the conductive fitting at the outlet end of the pump hose, and a second electrode in contact with the conductive fitting at the inlet end of the pump hose;means for applying a voltage across the first and second electrodes; andmeans for measuring an electrical property between the conductive fittings;wherein when the outlet end of the pump hose is connected to one end of an endoscope having a lumen to be sterilised and immersed in a conductive sterilant liquid in the sterilisation compartment, and the inlet end of the pump ...

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Номер записи: 44
16-01-2014 дата публикации

PUMP MODULE AND POSITIVE DISPLACEMENT PUMP

Номер: US20140017097A1
Автор: Conrad Armin
Принадлежит:

A pump module (″) includes a housing () that limits at least one channel () connecting at least one inlet with at least one outlet, an elastic membrane () extending in the housing in a flow direction, and a plurality of actuators located in the housing opposite each other on both sides of the at least one flow channel and forming actuation stages (A-A) arranged one after another in the flow direction, with a respective section of the elastic membrane being deflected and abutting a respective circumferential section of the at least one flow channel upon activation of an actuator of a respective actuation stage for forming a delivery chamber. 1456441478910111217141821222021. A pump module ( , , ; ′ , ″) , comprising a housing () having at least one inlet ( , , ) and at least one outlet ( , , ); at least one channel () located in the housing () and connecting the at least one inlet with the at least one outlet; an elastic membrane (; ; ) extending in the housing in a flow direction; a plurality of actuators located in the housing , the actuators being sequentially individually activated for sectionally deflecting the elastic membrane for forming at least one delivery chamber ( , ) between sections of the membrane and associated circumferential sections of the at least one flow channel for enclosing a to-be-delivered medium and movable , in course of a delivery movement between , the at least one inlet and the at least one outlet ,{'b': 1', '6', '1', '6, 'wherein respective actuators which are located opposite each other on both sides of the at least one flow channel form actuation stages (A-A) arranged one after another in the flow direction, with a respective section of the elastic membrane abutting a respective circumferential section of the at least one flow channel upon activation of an actuator of a respective actuation stage (A-A).'}245641162. A pump module ( claim 1 , claim 1 , ; ′) according to claim 1 , wherein the actuators are formed by solenoids (M.-M.). ...

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Номер записи: 45
23-01-2014 дата публикации

ELECTROMAGNETIC VIBRATING DIAPHRAGM PUMP WITH FUNCTION PREVENTING FLUID LEAKAGE TO ELECTROMAGNETIC PORTION

Номер: US20140023531A1
Автор: Ishii Hideki, Takamichi Tsuyoshi
Принадлежит: TECHNO TAKATSUKI CO., LTD.

An electromagnetic vibrating diaphragm pump is provided which is safe even when a diaphragm of a diaphragm pump is damaged and liquid or flammable gas penetrates an electromagnetic drive. An electromagnet coil container containing electromagnet coils in an airtight manner is further provided inside a casing, preventing fluid which has penetrated into the space outside the electromagnet coil container from penetrating into the space inside the electromagnet coil container. The electromagnet coil container has a passage formed for an oscillator to move in reciprocation and the passage is formed of a partition wall outside the container. The electromagnetic coil container is configured to prevent fluid which has penetrated into the space inside the passage from penetrating into the space inside the electromagnet coil container. 1. An electromagnetic vibrating diaphragm pump comprising:a casing containing a pair of opposing electromagnet coils to which an alternating-current power source is connected and an oscillator arranged movably in reciprocation between the pair of electromagnet coils; anda pair of pump casings fixed to both ends of the casing via diaphragms fixed to both ends of the oscillator, and adapted to suction fluid from outside and discharge fluid to outside by reciprocating motion of the oscillator and elastic deformation of the diaphragms,wherein an electromagnet coil container containing the electromagnet coils in an airtight manner is further provided inside the casing, the electromagnet coil container is configured to prevent fluid penetrated into a space outside the electromagnet coil container from penetrating into a space inside the electromagnet coil container, andwherein the electromagnet coil container has a passage formed for the oscillator to move in reciprocation and the passage is formed of an outer surface of a partition wall of the electromagnet coil container, preventing fluid penetrated into a space inside the passage from penetrating ...

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Номер записи: 46
06-02-2014 дата публикации

ELECTROMAGNETICALLY DRIVEN FLUID PUMP HAVING A CENTER PLATE WITH FUNCTION OF CENTERING

Номер: US20140037475A1
Автор: Ishii Hideki, Takamichi Tsuyoshi
Принадлежит: TECHNO TAKATSUKI CO., LTD

There is provided an electromagnetically driven fluid pump. Even if deviation of a center plate from the diaphragm arises, centering of the center plate is carried out during the work for setting the center plate to an oscillator. The diaphragm and the center plate are fixed to the oscillator by means of a screw member, the diaphragm has a rising portion fitting to a through-hole at the center of the center plate, and the center plate has a ring-shaped rib on its surface where the screw member is inserted. The screw member is formed integrally with a washer portion and a diameter of the washer portion is nearly the same as an inner diameter of a bottom surface of the rib and the washer portion is formed so as to press a part of the rib in the case of maximum deviation of the center plate from the diaphragm. 1. An electromagnetically driven fluid pump having a center plate with a function of centering , comprising an oscillator having permanent magnets fixed to a supporting portion and a shaft at a center portion of the supporting portion , a disc-like diaphragm disposed at least at one end of the oscillator , and electromagnets arranged so as to face the permanent magnets ,{'b': '21', 'wherein the diaphragm is fitted to a stopper portion disposed at one end of the shaft, is inserted in the shaft, and is fixed with a screw member to be screwed in the shaft in an axial direction of the shaft via the center plate into which the shaft is inserted,'}the diaphragm has a rising portion of a circular outer shape formed at the side of the center plate so as to fit to a through-hole provided at the center of the center plate,the center plate has, on its surface opposite to the diaphragm, a ring rib formed at the side of the outer periphery of the through-hole concentrically with the through-hole, andthe screw member has a washer portion formed integrally with the screw member and a diameter of the washer portion is nearly the same as an inner diameter of a bottom surface of ...

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Номер записи: 47
06-02-2014 дата публикации

PERISTALTIC PUMP TUBING WITH STOPPER AND COOPERATIVE ROLLER ASSEMBLY HOUSING HAVING NO MOVING PARTS

Номер: US20140037479A1
Автор: Klein Jeffrey A.
Принадлежит:

A peristaltic pump system includes elastomeric pump tubing and a roller pump. The pump tubing has a pumping segment and an inlet segment. The inlet segment has an inlet segment outer diameter. The pumping segment has a pumping segment outer diameter less than the inlet segment outer diameter. The roller pump has a roller assembly and a roller assembly housing. The roller assembly is disposed within the roller assembly housing and engaged with the pumping segment within the roller assembly housing. The roller assembly housing has an inlet gap formed through the roller assembly housing. The inlet gap defines an inlet gap inner diameter smaller than the pumping segment outer diameter. The inlet gap is adapted to frictionally receive the inlet segment for aligning the pump tubing with a roller assembly and mitigate longitudinal movement of the pump tubing into the roller assembly housing. 1. A tubing for a peristaltic pump system having an inlet gap defining an inlet gap inner diameter , the tubing comprising:an elongate body having a round exterior surface, the elongate having a lumen extending between opposed ends of the elongate body for delivering the fluid, the elongate body being fabricated from an elastomeric material, the elongate body having a pumping segment and an inlet segment, the inlet segment having an inlet segment outer diameter larger than the inlet gap inner diameter, the pumping segment having a pumping segment outer diameter less than the inlet segment outer diameter.2. The tubing of wherein the inlet segment has a constant wall thickness along a length of the pumping segment.3. The tubing of wherein the pumping segment has a varying wall thickness along a length of the pumping segment.4. The tubing of wherein the inlet segment outer diameter is constant along a length of the pumping segment.5. The tubing of wherein the pumping segment outer diameter varies along a length of the pumping segment.6. The tubing of wherein the pump tubing further has an ...

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Номер записи: 48
13-02-2014 дата публикации

FLUID TRANSPORTER AND FLUID TRANSPORTER DRIVING METHOD

Номер: US20140044565A1
Автор: Kawasumi Kazuo, MIYAZAKI Hajime
Принадлежит: SEIKO EPSON CORPORATION

A fluid transporter which transports fluid by pressing a plurality of radially disposed pressing shafts against a tube held in a circular-arc shape in directions from the inside of the circular-arc shape in accordance with rotation of a rotational pressing plate having a plurality of projections on the outer circumference thereof so as to allow flow of fluid includes: a first detecting section which detects the rotation angle of the rotational pressing plate; a second detecting section which detects the rotation angle of either a driving rotor for giving a rotational force to the rotational pressing plate or a reduction transmission mechanism for connecting the driving rotor and the rotational pressing plate; a data table which shows the relationship between the rotation angle of the rotational pressing plate and a cumulative delivery amount; and a controller which controls the drive of the driving rotor. 1. A method for driving a fluid transporter which includes a tube , a rotational pressing plate , a plurality of pressing shafts disposed between the tube and the rotational pressing plate , a driving rotor which gives a rotational force to the rotational pressing plate , a first detecting section which detects a rotation angle of the rotational pressing plate , the method comprising:rotating the rotational pressing plate, and stopping the rotation when the first detecting section detects the rotation angle of the rotational pressing plate to initialize the cumulative delivery amount.2. The method for driving a fluid transporter according to claim 1 , further comprising:rotating the rotational pressing plate to start fluid delivery;allowing the first detecting section to detect the rotation angle of the rotational pressing plate and comparing the detected rotation angle with a data table; androtating the rotational pressing plate through a rotation angle corresponding to a designated cumulative delivery amount and stopping fluid delivery when the rotation angle of ...

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Номер записи: 49
13-02-2014 дата публикации

FLUID TRANSPORTER AND FLUID TRANSPORTER DRIVING METHOD

Номер: US20140044566A1
Автор: Kawasumi Kazuo, MIYAZAKI Hajime
Принадлежит: SEIKO EPSON CORPORATION

A fluid transporter which transports fluid by pressing a plurality of radially disposed pressing shafts against a tube held in a circular-arc shape in directions from the inside of the circular-arc shape in accordance with rotation of a rotational pressing plate having a plurality of projections on the outer circumference thereof so as to allow flow of fluid includes: a first detecting section which detects the rotation angle of the rotational pressing plate; a second detecting section which detects the rotation angle of either a driving rotor for giving a rotational force to the rotational pressing plate or a reduction transmission mechanism for connecting the driving rotor and the rotational pressing plate; a data table which shows the relationship between the rotation angle of the rotational pressing plate and a cumulative delivery amount; and a controller which controls the drive of the driving rotor. 1. A method for driving a fluid transporter which includes a tube , a rotational pressing plate , a plurality of pressing shafts disposed between the tube and the rotational pressing plate , a driving rotor which gives a rotational force to the rotational pressing plate , a first detecting section which detects a rotation angle of the rotational pressing plate , and a data table which shows a relationship between the rotation angle of the rotational pressing plate and a cumulative delivery amount , the method comprising:rotating the rotational pressing plate to start fluid delivery;allowing the first detecting section to detect the rotation angle of the rotational pressing plate and comparing the detected rotation angle with the data table; androtating the rotational pressing plate through a rotation angle corresponding to a designated cumulative delivery amount and stopping fluid delivery when the rotation angle of the rotational pressing plate reaches the rotational angle corresponding to the designated cumulative delivery amount.2. The method for driving the ...

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Номер записи: 50
13-02-2014 дата публикации

MICROPUMP HAVING A FLOWMETER, AND METHOD FOR PRODUCING SAME

Номер: US20140044568A1
Автор: Fouillet Yves, FUCHS Olivier
Принадлежит: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENE ALT

A micropump with a deformable membrane, including: a first chamber, one wall of which includes a first deformable membrane portion and an actuator of the first membrane portion; a second chamber including a second deformable membrane portion and a third chamber, including a third deformable membrane portion, the second chamber and the third chamber being connected together through a first channel, at least one of the second and third chambers being connected through a second channel to the first chamber; each of the second chamber and third chamber including a mechanism forming a detection gauge, but not including an activation mechanism. 120-. (canceled)21. A micropump with a deformable membrane , comprising:a first chamber, one wall of which includes a first deformable membrane and an actuator of the first membrane;a second chamber including a second deformable membrane and a third chamber, including a third deformable membrane, the second chamber and the third chamber being connected together through a first channel, at least one of the second and third chambers being connected through a second channel to the first chamber;each of the second chamber and third chamber including a detector detecting deformation of the corresponding membrane portion under action of a fluid flowing in the micropump, but not including activation means.22. The micropump according to claim 21 , further comprising at least one fourth chamber connected to one of other chambers and including a fourth deformable membrane and an actuator of the fourth membrane.23. The micropump according to :each of the second chamber and third chamber including 4 gauges forming a Wheatstone bridge;or each of the second chamber and third chamber including 2 gauges, these 4 gauges forming a Wheatstone bridge, or having identical rated values.24. The micropump according to :the second chamber and the third chamber being both located on a same side of the first chamber, only one of the second and third chambers ...

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Номер записи: 51
13-02-2014 дата публикации

SYSTEM AND METHOD FOR A PUMP WITH ONBOARD ELECTRONICS

Номер: US20140044570A1
Автор: Cedrone James, Gashgaee Iraj, Gonnella George
Принадлежит: ENTEGRIS, INC.

Embodiments of the present invention provide pumps with features to reduce form factor and increase reliability and serviceability. Additionally, embodiments of the present invention provide features for gentle fluid handling characteristics. Embodiments of the present invention can include a pump having onboard electronics and features to prevent heat from the onboard electronics from degrading process fluid or otherwise negatively impacting pump performance. Embodiments may also include features for reducing the likelihood that fluid will enter an electronics housing. 1. A multi-stage pump for pumping a process fluid , the multi-stage pump comprising:a pump inlet flow path; a feed stage diaphragm movable in a feed chamber;', 'a feed piston to move the feed stage diaphragm; and', 'a feed motor coupled to the feed piston to reciprocate the feed piston;, 'a feed pump in fluid communication with the pump inlet flow path, the feed pump comprising a dispense diaphragm movable in a dispense chamber, wherein the dispense diaphragm comprises a dispense rolling diaphragm;', 'a dispense piston to move the dispense diaphragm; and', 'a dispense motor coupled to the dispense piston to reciprocate the dispense piston;, 'a dispense pump comprisinga pump outlet flow path;a set of valves to regulate fluid flow through the multi-stage pump;an electronics housing at least partially defining an electronics chamber; andonboard pump electronics positioned in the electronics chamber, wherein the electronics housing is formed of a material selected to dissipate heat generated by the electronics.2. The multi-stage pump of claim 1 , further comprising a manifold positioned in the electronics chamber and in fluid communication with the set of valves.3. The multi-stage pump of claim 2 , wherein the manifold comprisesa positive pressure input;a negative pressure input; andmanifold valves, each manifold valve comprising a solenoid valve with a supply port connected to a corresponding valve in ...

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Номер записи: 52
20-02-2014 дата публикации

PUMP

Номер: US20140050604A1
Автор: Buckland Justin Rorke, Campbell Andrew Robert
Принадлежит: The Technology Partnership Plc.

A pump comprising a side wall closed at each end by an end wall forming a cavity for, in use, containing a fluid, one or more actuators each operatively associated with one or more of the end walls to cause an oscillatory motion of the associated end wall(s) whereby, in use, these axial oscillations of the end wall(s) drive substantially radial oscillations of the fluid pressure in the cavity, two or more apertures in the cavity, a valve disposed in at least one of the apertures, wherein the actuator(s) is arranged to be non-axisymmetric in use such that, in use, a pressure oscillation with at least one nodal diameter is generated within the cavity. 1. A pump comprising:a side wall closed at each end by an end wall forming a cavity for, in use, containing a fluid;one or more actuators each operatively associated with one or more of the end walls to cause an oscillatory motion of the associated end wall(s) whereby, in use, these axial oscillations of the end wall(s) drive substantially radial oscillations of the fluid pressure in the cavity;two or more apertures in the cavity;a valve disposed in at least one of the apertures;wherein the actuator(s) is arranged to be axially asymmetric in use such that, in use, a pressure oscillation with at least one nodal diameter is generated within the cavity.2. A pump according to claim 1 , wherein the actuator includes axially asymmetric features.3. A pump according to claim 1 , wherein the actuator includes a piezoelectric layer.4. A pump according to claim 3 , wherein the axial asymmetry is defined by sections of the piezoelectric layer having different polarisation.5. A pump according to any one of to claim 3 , wherein the actuator includes at least two electrodes.6. A pump according to claim 5 , wherein the axial asymmetry is defined by separate electrodes and/or the absence of an electrode.7. A pump according to claim 5 , wherein at least one of the electrodes is non-coaxial relative to the actuator.8. A pump according to ...

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Номер записи: 53
20-03-2014 дата публикации

Digital microfluidic manipulation device and manipulation method thereof

Номер: US20140079563A1
Автор: Chao-Jyun HUANG, Chih-Yu HWANG, Jing-Tang Yang
Принадлежит: National Taiwan University NTU

This invention provides a digital microfluidic manipulation device and a manipulation method thereof. This device comprises a PDMS membrane having a surface comprising a plurality of hydrophobic microstructures; a plurality of air chambers arranged in an array and placed under the PDMS membrane; and a plurality of air channels, each of which connects to a corresponding one of the plurality of air chambers. When a suction force is transmitted via one of the plurality of air channels to the corresponding air chamber, a portion of the PDMS membrane above the air chamber deforms toward the air chamber, so that the surface morphology and the contact angle of the liquid/solid interface of the surface comprising the plurality of hydrophobic microstructures are altered and thereby to drive droplets.

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Номер записи: 54
27-03-2014 дата публикации

BELLOWS AND METHOD FOR MANUFACTURING SAME

Номер: US20140083288A1
Автор: Takahashi Eiichi, Tatsumi Toshinori
Принадлежит:

A conductive coating layer is formed on at least one of an inner peripheral side and an outer peripheral side of a base body of bellows by diffusion-bonding. Regarding the diffusion-bonding, the flat conductive coating layer is layered on at least one end surface side of the plate-shaped base body , and these base body and conductive coating layer are diffusion-bonded. After forming this diffusion-bonded multilayer member into a tubular body by a drawing process, a side wall of the tubular body is formed into a bellows shape. With these processes, it is possible to obtain the bellows that has the conductive coating layer having a more uniform thickness on the base body of the bellows and has extremely good characteristics (the mechanical characteristics and the electric characteristics). 1. A method for manufacturing bellows comprising:arranging a flat conductive coating layer on at least one end surface side of a plate-shaped base body in layer;diffusion-bonding the base body and the conductive coating layer;forming a diffusion-bonded multilayer member into a tubular body by a drawing process; andforming a side wall of the tubular body into a bellows shape.2. The method for manufacturing the bellows as claimed in claim 1 , wherein:the base body is formed from a nonmagnetic stainless material.3. The method for manufacturing the bellows as claimed in claim 1 , wherein:the conductive coating layer is formed from a conductive material that contains at least one of copper, silver and gold.4. The method for manufacturing the bellows as claimed in claim 1 , wherein:an inner peripheral side and an outer peripheral side of the base body are coated with the conductive coating layer.5. Bellows manufactured by the method of .6. Bellows for a vacuum casing claim 1 , which divides an inside of the vacuum casing into a vacuum chamber and an atmospheric chamber and keeps the vacuum chamber airtight claim 1 , comprising:a base body to which a conductive coating layer is diffusion- ...

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Номер записи: 55
27-03-2014 дата публикации

Vacuum treatment apparatus

Номер: US20140086711A1
Автор: Bart Scholte Von Mast, Daniel Rohrer, Rogier Lodder, Rolf Bazlen, Wolfgang Rietzler
Принадлежит: OC OERLIKON BALZERS AG

To reduce pumping time of a vacuum treatment chamber served by a transport arrangement in a transport chamber the vacuum treatment chamber is split into a workpiece treatment compartment and a pumping compartment in mutual free flow communication and arranged opposite each other with respect to a movement path of the transport arrangement serving the vacuum treatment chamber. The pumping compartment allows a pumping port to have a flow cross-section area that is freely selectable independently from the geometry of the treatment compartment.

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Номер записи: 56
27-03-2014 дата публикации

PERISTALTIC PUMP

Номер: US20140086771A1
Автор: BASSANI Loris
Принадлежит: CAPMATIC LTEE

The invention provides a peristaltic pump. The pump has a cavity for receiving a rotor and a flexible conduit, the rotor engaging the flexible conduit to displace fluid therein. A conduit retainer mechanism is provided for engaging the flexible conduit to assist with retention of the conduit in the cavity against displacement resulting from engagement between the conduit and the rotor. The conduit retainer mechanism including first and second jaws opposite to one another, defining between them a passageway for receiving the conduit, wherein one of the first and second jaws are spring biased to resiliently engage the conduit. 1. A peristaltic pump , comprising:a. a cavity receiving a rotor and a flexible conduit, the rotor engaging the flexible conduit to displace fluid therein;b. a conduit retainer mechanism for engaging the flexible conduit to assist with retention of the conduit in the cavity against displacement resulting from engagement between the conduit and the rotor, the conduit retainer mechanism including:c. first and second jaws opposite to one another, defining between them a passageway for receiving the conduit;d. one of the first and second jaws being spring biased to resiliently engage the conduit.2. A peristaltic pump as defined in claim 1 , wherein the rotor has a side-wall with a plurality of lobes for engaging the flexible conduit and wherein the pump has a pump body defining the cavity claim 1 , the pump body including two mating components separable from one another to open the cavity and expose the side wall of the rotor claim 1 , allowing placement of the flexible conduit on the side wall of the rotor.3. A peristaltic pump as defined in claim 2 , wherein the first jaw is mounted on a first of the mating components and the second jaw is mounted to a second of the two mating components.4. A peristaltic pump as defined in claim 3 , wherein the first and the second jaws are spring biased toward each other.5. A peristaltic pump as defined in claim ...

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Номер записи: 57
10-04-2014 дата публикации

Highly airtight gas pump

Номер: US20140099222A1
Автор: Cheng-Fang Yu
Принадлежит: TRICORE Corp

A gas pump is composed of a gas suction member and a gas exhaust member. The gas suction member includes a gasbag having a hollow retractable portion being drivable by a motor for oppression or expansion, an intake valve allowing the air to pass therethrough when the hollow retractable portion is oppressed, and a flexible tube having two crosscuts, by which the flexible tube is divided into two vent valvular pieces. Each of the vent valvular pieces has a reinforcing strip formed on an internal wall thereof for forcing each of the vent valvular pieces to seal the exhaust passage. The gas exhaust member is mounted to the gasbag and includes a venthole and a guide slot. The venthole can receive the flexible tube therein. The guide slot communicates the hollow retractable portion and the intake valve for guiding the air into the hollow retractable portion.

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Номер записи: 58
03-01-2019 дата публикации

INTELLIGENT BRA

Номер: US20190000153A1
Автор: CHEN SHIH-CHANG, Han Yung-Lung, Huang Chi-Feng, LIN Ching-Sung, MO Li-Pang, Tsai Chang-Yen
Принадлежит: Microjet Technology Co., Ltd.

An intelligent bra includes a main body and an air pump. The main body includes a connection base connected with a cup set, two back bands and two fixing elements. The cup set includes a first cup, a second cup and a central part defined between the first cup and the second cup. The cup set includes an outer layer, an inner layer and an air bag layer. The air bag layer is disposed between the outer layer and the inner layer. A connection end of an airflow channel of the air bag layer is disposed on the central part. The two back bands are respectively connected with the connection base. The two fixing elements are disposed on the lateral sides of the two back bands, respectively. The air pump is detachably connected with the connection end, so as to adjust an inner pressure of the air bag layer. 1. An intelligent bra comprising: a connection base;', 'a cup set comprising a first cup and a second cup disposed symmetrically with respect to a central part therebetween, the cup set being connected with the connection base and further comprising an outer layer, an inner layer and an air bag layer disposed between the outer layer and the inner layer to be covered thereby, wherein the air bag layer comprises an airflow channel having a connection end connected to the center part;', 'two back bands each of which has a connecting portion and an end portion, wherein the connecting portions of the back bands are connected with two lateral sides of the connection base, respectively; and', 'two fixing elements disposed on the end portions of the two back bands, respectively; and, 'a main body comprisingan air pump connected with the connection end of the airflow channel of the air bag layer and configured to inflate or deflate the air bag layer such that an inner pressure of the air bag layer is adjusted.2. The intelligent bra according to claim 1 , wherein the main body further comprises an accommodation part disposed on the connection base and configured to accommodate the air ...

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Номер записи: 59
03-01-2019 дата публикации

PNEUMATIC ELASTIC BAND AND INFLATABLE SYSTEM USING SAME

Номер: US20190000188A1
Автор: CHEN SHIH-CHANG, Huang Chi-Feng, Lee Wei-Ming, MO Li-Pang, Mou Hao-Jan
Принадлежит: Microjet Technology Co., Ltd.

A pneumatic elastic band comprises an outer portion, an inflatable portion and a nozzle. The outer portion has a strip-shaped structure with elasticity. The inflatable portion comprises a plurality of expansion portions and a plurality of communication portions. Each of the communication portions is connected between two of the expansion portions adjacent to each other for defining a plurality of gaps. The nozzle is disposed on a surface of the outer portion and communicated with the inflatable portion. When a gas is guided into the inflatable portion through the nozzle, the plurality of expansion portions of the inflatable portion are inflated to fill the gaps and make the inflatable portion contract inwardly, so that the outer portion contracts inwardly and deforms, wherein when the gas is guided out of the inflatable portion, the inflatable portion is deflated and loosened to return to an uninflated state to loosen the shoe. 1. A pneumatic elastic band , comprising:an outer portion having a strip-shaped structure with elasticity;an inflatable portion disposed within the outer portion, the inflatable portion comprising a plurality of expansion portions and a plurality of communication portions, each of the communication portions is connected between two of the expansion portions adjacent to each other for defining a plurality of gaps; anda nozzle disposed on a surface of the outer portion and communicated with the inflatable portion,wherein when a gas is guided into the inflatable portion through the nozzle, the plurality of expansion portions of the inflatable portion are inflated to fill the plurality of gaps and make the inflatable portion contract inwardly, so that the outer portion correspondingly contracts inwardly and deforms, wherein when the gas is guided out of the inflatable portion through the nozzle, the inflatable portion is deflated and loosened to return to an uninflated state.2. The pneumatic elastic band according to claim 1 , wherein the ...

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Номер записи: 60
02-01-2020 дата публикации

FLUID CONTROL DEVICE AND SPHYGMOMANOMETER

Номер: US20200000346A1
Автор: OKAGUTI Kenjiro
Принадлежит:

A fluid control device includes a piezoelectric pump that includes a piezoelectric element and whose discharge pressure output varies depending on a drive frequency of the piezoelectric element, a self oscillation circuit that self-oscillates in accordance with a drive supply voltage and that drives the piezoelectric element at an oscillation frequency, and a control circuit that generates a control voltage. The oscillation frequency of the self oscillation circuit varies depending on the control voltage. 1. A fluid control device comprising:a piezoelectric pump comprising a piezoelectric element and having a discharge pressure output that varies depending on a drive frequency of the piezoelectric element;a control circuit configured to generate a control voltage; anda self-oscillation circuit configured to self-oscillate in accordance with a drive supply voltage and the control voltage, and to drive the piezoelectric element at an oscillation frequency.2. The fluid control device according to claim 1 , wherein a phase difference between signals that drive the piezoelectric pump varies as the control voltage varies.3. The fluid control device according to claim 2 , wherein:the self-oscillation circuit comprises a filter circuit,the filter circuit comprises a variable impedance element having an impedance that varies depending on the control voltage, anda pass band of the filter circuit changes as the impedance of the variable impedance element varies.4. The fluid control device according to claim 3 , wherein the variable impedance element has a resistance or capacitance that varies depending on the control voltage.5. The fluid control device according to claim 4 , wherein:the variable impedance element comprises a field effect transistor (FET), andthe control voltage is applied to a gate of the FET.6. The fluid control device according to claim 4 , wherein:the variable impedance element comprises a variable capacitance element, andthe control voltage is applied to ...

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Номер записи: 61
07-01-2016 дата публикации

PUMP MECHANISM FOR VACUUM SUSPENSION SYSTEM

Номер: US20160000585A1
Автор: SANDAHL David
Принадлежит:

A vacuum suspension system includes a pump mechanism operatively connectable to a prosthetic socket. The pump mechanism has a first member and a second member. First and second fluid chambers are located between the first and second members. The second fluid chamber is fluidly separate from the first fluid chamber, and arranged for fluid communication with the socket. An increase in volume of the first fluid chamber mechanically expands the second fluid chamber, which, in turn, creates a vacuum pressure in the second fluid chamber. 1. A vacuum suspension system comprising: a first member;', 'a second member;', 'a first fluid chamber located between the first and second members;', 'a second fluid chamber located between the first and second members, the second fluid chamber fluidly separate from the first fluid chamber, and arranged for fluid communication with the socket,', 'wherein an increase in volume of the first fluid chamber mechanically expands the second fluid chamber to create a vacuum pressure in the second fluid chamber., 'a pump mechanism operatively connectable to a prosthetic socket, the pump mechanism including2. The system of claim 1 , further comprising a bladder disposed between the first and second members of the pump mechanism claim 1 , the bladder defining the first fluid chamber.3. The system of claim 2 , wherein the bladder is fluidly connectable to a pressure source separate from the pump mechanism claim 2 , the pressure source arranged to selectively introduce pressure into the bladder to increase the volume of the first fluid chamber.4. The system of claim 3 , wherein the pressure source compresses and forces fluid into the first fluid chamber to increase the volume of the first fluid chamber.5. The system of claim 1 , wherein the volume increase in the first fluid chamber mechanically separates the first and second members of the pump mechanism to create the vacuum pressure in the second fluid chamber.6. The system of claim 1 , further ...

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Номер записи: 62
04-01-2018 дата публикации

Vacuum Splint Apparatus for Accessing the Neck of a Patient and Method for Using the Same

Номер: US20180000627A1
Автор: Islava Steve
Принадлежит:

A particle filled neck brace is used for immobilizing the neck and chin of a patient and includes a vacuum pump disposed on the neck brace, which pump is communicated to the interior of the neck brace. After the neck brace is secured around the neck and chin of the patient, the vacuum pump is manipulated to remove air from the neck brace to form a rigid mold about the patient's neck and chin. The vacuum pump has a one way directional valve so that the neck brace remains in a rigid configuration for as long as the neck brace is applied to the patient. The neck brace also specifically forms a rigid mold over the patient's chin so as to immobilize the patient as well as to provide a comfortable fit without inducing further distracting the patient or restricting the patient's venous return blood flow. 1. A customizable neck brace comprising:a front panel;a back panel, wherein an internal volume is defined between the front panel and the back panel;a strip coupled to the front panel, the strip comprising a first coupling portion disposed on at least one surface of the strip;a second coupling portion disposed on the front panel;a plurality of loosely compressible particles disposed in the internal volume;a detachable pump assembly removably coupled to the front panel;a neck contour defined in the front panel and back panel; andan access port defined in the front panel and back panel.2. The neck brace of where the detachable pump assembly comprises:a chamber;a handle coupled to a first end of the chamber;a plunger disposed within an internal portion of the chamber; anda nozzle disposed within a second end of the chamber.3. The neck brace of where the detachable pump assembly further comprises a collar coupled to the nozzle and a female luer lug which is coupled to the nozzle via a flexible connecting line.4. The neck brace of where the detachable pump assembly further comprises:a vacuum line coupled to an input valve disposed in the front panel at a first end;a male luer ...

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Номер записи: 63
04-01-2018 дата публикации

VALVE ASSEMBLY AND METHODS OF USE

Номер: US20180000695A1
Автор: Stroup David
Принадлежит:

A valve assembly including a housing having a base and an outer shell, which forms a proximal cavity and a distal cavity joined by a canal; an inner housing configured for longitudinal movement within the distal cavity; a seal positioned within the distal cavity that together with the longitudinal movement of the inner housing regulates the flow of fluid through the valve assembly; and one or more selected from the group consisting of the base notched with one or more notches and the inner housing having one or more through slots aligned to permit access to the one or more notches, the seal being a reversibly deformable sealing pin, and a torque limiter mechanism configured to resist the longitudinal movement of the inner housing distally until a sufficient radial force is applied. 1. A valve assembly comprising:an outer housing comprising a base and an outer shell, which forms a proximal cavity and a distal cavity joined by a canal, wherein the base is threaded at a proximal end and notched with one or more notches at a distal end;an inner housing configured for longitudinal movement within the distal cavity, the inner housing comprising one or more through slots aligned to permit access to the one or more notches across the inner housing, and a central boss comprising a through bore that directs passage of fluid through the inner housing; anda seal positioned within the distal cavity that together with the longitudinal movement of the inner housing regulates the flow of fluid through the valve assembly.2. The valve assembly according to claim 1 , wherein the outer shell and inner housing comprise complementary camming elements claim 1 , wherein the longitudinal movement occurs by helically turning the inner housing in relation to the outer housing.3. The valve assembly according to claim 1 , wherein the one or more through slots are longitudinally adjacent to the one or more notches when the valve is in a closed position.4. The valve assembly according to claim 3 ...

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Номер записи: 64
04-01-2018 дата публикации

PORTABLE DEVICE WITH DISPOSABLE RESERVOIR FOR COLLECTION OF INTERNAL FLUID AFTER SURGERY

Номер: US20180001000A1
Автор: HERWIG JOSHUA D., ROAN ESRA, STOIKES NATHANIEL F., VOELLER GUY
Принадлежит:

A system and apparatus for the collection of serous or serosanguinous fluid from a percutaneous site after surgery. A pump unit with one or more pumps or powered sources provide continuous negative pressure suction to draw fluid from the percutaneous site and pumps the fluid into disposable reservoirs with one-way valves that are easy to handle while maintaining sterility and a seal to prevent the loss of vacuum. Air is continuously removed from the reservoirs. Measurement and analysis of the output is performed automatically. 1. A device for collection of internal fluid after surgery , comprising:a pump unit configured to create a continuous negative pressure between the pump and one or more drainage structures to draw fluid through the one or more drainage structures into the pump unit, and create a positive pressure between the pump unit and one or more fluid collectors to transport the fluid from the pump unit to the one or more fluid collectors.2. The device of claim 1 , wherein the pump unit comprises a pump unit housing claim 1 , at least one inlet port claim 1 , at least one outlet port claim 1 , and at least one fluid pump in fluid communication with the at least one inlet port and the at least one outlet port.3. The device of claim 1 , wherein the pump unit comprises a pump unit housing claim 1 , two or more inlet ports claim 1 , two or more outlet ports claim 1 , two or more fluid pumps claim 1 , each fluid pump in fluid communication with one of said two or more inlet ports and one or said two or more outlet ports.4. The device of claim 1 , further comprising a manifold structure claim 1 , said manifold structure comprising a plurality of inlet ports in fluid connection with said one or more drainage structures claim 1 , and at least one outlet port in fluid connection with the pump unit.5. The device of claim 1 , wherein said one or more fluid collectors comprise one or more fluid reservoirs.6. The device of claim 5 , wherein said one or more fluid ...

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Номер записи: 65
05-01-2017 дата публикации

ACOUSTIC-RESONANCE FLUID PUMP

Номер: US20170002839A1
Автор: BUKLAND Justin Rorke, HATFIELD Stuart Andrew, Pooley David Martin, WEICHERT Stephanie April
Принадлежит:

A fluid pump comprising: a pump body having upper and lower parts, each comprising a substantially cylindrical side wall closed at one end by a substantially circular end wall and partially closed at the opposite end by an actuator disposed in a plane substantially parallel to and between the end walls, thereby forming a single cavity having upper and lower portions which encloses the actuator and is bounded by the end walls and side walls of the pump body and the surfaces of the actuator; a substantially open actuator support structure connecting the actuator to the pump body and enabling free flow of fluid between the upper and lower cavity portions; at least two apertures through the pump body walls, at least one of which is a valved aperture; wherein all apertures located substantially at the centres of the end walls are valved apertures; wherein, in use, the actuator oscillates in a direction substantially perpendicular to the plane of the end walls causing an acoustic wrapped standing wave to exist in the cavity and thereby causing fluid flow through said apertures. 1) A fluid pump comprising:a pump body having upper and lower parts, each comprising a substantially cylindrical side wall closed at one end by a substantially circular end wall and partially closed at the opposite end by an actuator disposed in a plane substantially parallel to and between the end walls, thereby forming a single cavity having upper and lower portions which encloses the actuator and is bounded by the end walls and side walls of the pump body and the surfaces of the actuator;a substantially open actuator support structure connecting the actuator to the pump body and enabling free flow of fluid between the upper and lower cavity portions;at least two apertures through the pump body walls, at least one of which is a valved aperture;wherein all apertures located substantially at the centres of the end walls are valved apertures; wherein, in use, the actuator oscillates in a direction ...

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Номер записи: 66
01-01-2015 дата публикации

Air Mass Control for Diaphragm Pumps

Номер: US20150004003A1
Автор: Jevawn Sebastian ROBERTS, Michael Brace Orndorff
Принадлежит: Ingersoll Rand Co

Illustrative embodiments of diaphragm pumps, and pre-charging systems for use with such pumps, are disclosed. In at least one illustrative embodiment, a diaphragm pump may comprise a first diaphragm that separates a cavity into a motive fluid chamber and a pumped media chamber, a charge chamber having a controlled volume, wherein the controlled volume is adjustable to vary a controlled mass of compressed fluid capable of being stored in the charge chamber, and one or more valves configured to (i) fluidly couple the motive fluid chamber to an exhaust chamber during a first stroke period, (ii) fluidly couple the charge chamber to a compressed fluid inlet during at least a portion of the first stroke period, and (iii) fluidly couple the charge chamber to the motive fluid chamber during a second stroke period.

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Номер записи: 67
01-01-2015 дата публикации

Membrane Pump and Method for Adjusting Same

Номер: US20150004005A9
Автор: Fritsch Horst
Принадлежит: PROMINENT DOSIERTECHNIK GMBH

The present invention concerns a pump adjusting method and a membrane pump having a pumping chamber, a pressure and a suction connection, wherein the pressure and the suction connections are connected to the pumping chamber, a hydraulic chamber, wherein the pumping chamber and hydraulic chamber are separated from each other by a membrane, wherein a pulsating working fluid pressure can be applied to the hydraulic chamber which can be filled with a working fluid, wherein the membrane is moved between a first and second chamber positions of different volumes, wherein the chamber is connected to a working fluid reservoir, wherein the membrane comprises exchangeable spring elements exerting different forces on the membrane. The force which is exerted by the spring element on the membrane in the direction of the second position can be adjusted. 1. A membrane pump witha pumping chamber;a pressure and a suction connection,wherein the pressure and the suction connections are connected to the pumping chamber;a hydraulic chamber,wherein the pumping chamber and hydraulic chamber are separated from each other by a membrane,wherein a pulsating working fluid pressure can be applied to the hydraulic chamber which can be filled with a working fluid,wherein the membrane is moved between a first position in which the pumping chamber has a smaller volume, and a second position, in which the pumping chamber has a larger volume,wherein the hydraulic chamber is connected to a working fluid reservoir via a leakage compensation valve,wherein the membrane comprises a spring element having a first spring constant, which is designed such that it exerts a first predetermined force on the membrane in the direction of the second position; characterized in that the spring element can be exchanged for another spring element which is designed such that it exerts a second predetermined force on the membrane in the direction of the second position, or the force which is exerted by the spring element ...

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Номер записи: 68
01-01-2015 дата публикации

SECURITY SYSTEM FOR A PNEUMATIC ACCUMULATOR AND PLANT USING SAID SYSTEM

Номер: US20150004013A1
Автор: Giovangrossi Giacomo
Принадлежит:

A security system for a pneumatic accumulator, the pneumatic accumulator being connectable with a pump and with a pneumatic apparatus by, respectively, a first and second connecting duct is described. The security system has a) a pneumatic bladder for containing high pressure gas, and b) flow distribution means connected with the first and second connecting ducts to the pneumatic accumulator and the pneumatic bladder, the flow distribution means being able to pass from a first operating position to a second operating position, in which the flow distribution means connects the first and second connecting ducts with the pneumatic bladder (40) pneumatic plant is also described. 1. A security system for a pneumatic accumulator , said pneumatic accumulator being connectable with a pump and with a pneumatic apparatus by means of , respectively , a first and a second connecting duct , said system comprising:a pneumatic bladder for containing high pressure gas, andflow distribution means connected with said first and said second connecting ducts to said pneumatic accumulator and said pneumatic bladder, said flow distribution means being able to pass, through a command, from a first operating position, in which said flow distribution means connect said first and said second connecting ducts with said pneumatic accumulator, to a second operating position, in which said flow distribution means connects said first and said second connecting ducts with said pneumatic bladder, so as to inflate said pneumatic bladder with gas and to functionally replace said pneumatic accumulator.2. The system according to claim 1 , further comprising:a detection device of an internal pressure of said pneumatic accumulator, anda control unit operatively connected with said detection device and said flow distribution means, said control unit being capable to transmit said command to cause the passage of said flow distribution means from said first to said second operating position, when said ...

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Номер записи: 69
07-01-2016 дата публикации

DISC PUMP WITH ADVANCED ACTUATOR

Номер: US20160003232A1
Автор: Locke Christopher Brian, Tout Aidan Marcus
Принадлежит:

A two-cavity pump having a single valve in one cavity and a bidirectional valve in another cavity is disclosed. The pump has a side wall closed by two end walls for containing a fluid. An actuator is disposed between the two end walls and functions as a portion of a common end wall of the two cavities. The actuator causes an oscillatory motion of the common end walls to generate radial pressure oscillations of the fluid within both cavities. An isolator flexibly supports the actuator. The first cavity includes the single valve disposed in one of a first and second aperture in the end wall to enable fluid flow in one direction. The second cavity includes the bidirectional valve disposed in one of a third and fourth aperture in the end wall to enable fluid flow in both directions. 123.-. (canceled)24. A pump comprising:a side wall substantially cylindrical in shape;a first end wall and a second end wall closing the side wall for containing a fluid; an actuator forming a central portion of the common end wall and adapted to cause an oscillatory motion of the common end wall when actuated to generate radial pressure oscillations of the fluid within the first cavity and the second cavity, and', 'an isolator forming a peripheral portion of the common end wall and extending from the periphery of the actuator to the side wall and flexibly supporting the actuator;, 'a common end wall disposed between the first end wall and the second end wall and supported by the side wall to form a first cavity adjacent the first end wall and a second cavity adjacent the second end wall, each cavity having a height (h) and a radius (r), wherein a ratio of the radius (r) to the height (h) is greater than about 1.2, the common end wall comprisinga first aperture and a second aperture disposed at two separate locations in the first end wall and extending through the first end wall at the two separate locations;a first valve disposed in either one of the first and second apertures;a third ...

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Номер записи: 70
07-01-2016 дата публикации

Pump device and method for controlling the same

Номер: US20160003251A1
Автор: Akhiro YAMANAKA, Ryuji ITOYAMA, Sachie Suzuki, Yuji Nonomura
Принадлежит: Ulvac Kiko Inc

[Object] To provide a pump device capable of stabilizing a suction flow rate irrespective of an outside air temperature and a control method therefor. [Solving Means] The control method for a pump device includes: outputting a drive signal for driving a motor at a rotation speed for discharging gas of the reference flow rate from the suction port of the pump main body; measuring a temperature of gas discharged from the suction port or a temperature of the pump main body by a temperature sensor attached to the pump main body; calculating an actual flow rate of the gas discharged from the suction port based on a temperature signal relating to the temperature of the gas included in an output of the temperature sensor; and correcting the drive signal such that the actual flow rate equals the reference flow rate and outputting the corrected drive signal to the motor.

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Номер записи: 71
04-01-2018 дата публикации

MICROFLUIDIC PUMP APPARATUS AND METHODS

Номер: US20180003167A1
Автор: Kimmel Jyrki
Принадлежит:

An apparatus and method, the apparatus comprising: a microfluidic channel (); an electromechanical gel () provided within the microfluidic channel (); at least one pair of electrodes () wherein the at least one pair of electrodes () are configured to control the electric field across the microfluidic channel () to cause the electromechanical gel () to deform in response to a voltage applied to the electrodes () such that the deformation enables fluid to be pumped through the microfluidic channel (). 115-. (canceled)16. An apparatus comprising:a microfluidic channel;an electromechanical gel provided within the microfluidic channel;at least one pair of electrodes wherein the pair of electrodes is configured to control an electric field across the microfluidic channel;wherein the at least one pair of electrodes are configured to control the electric field across the microfluidic channel to cause the electromechanical gel to deform in response to a voltage applied to the electrodes such that the deformation enables fluid to be pumped through the microfluidic channel.17. An apparatus as claimed in claim 16 , wherein the at least one pair of electrodes is configured to enable the voltage to be provided perpendicular to a direction of fluid flow within the microfluidic channel.18. An apparatus as claimed in claim 16 , wherein the at least one pair of electrodes is configured to provide a voltage across the microfluidic channel.19. An apparatus as claimed in claim 16 , wherein the at least one pair of electrodes is configured to provide a voltage close to the microfluidic channel.20. An apparatus as claimed in claim 16 , wherein the apparatus comprises a plurality of pairs of electrodes.21. An apparatus as claimed in claim 16 , wherein the plurality of pairs of electrodes extend parallel to a direction of fluid flow within the microfluidic channel.22. An apparatus as claimed in claim 16 , wherein the plurality of pairs of electrodes are configured to sequentially apply a ...

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Номер записи: 72
02-01-2020 дата публикации

Hypocycloid Compressor

Номер: US20200003197A1
Автор: Colavincenzo David D.
Принадлежит:

A compressor includes a stationary housing disposed about a central axis and having a radially inner surface defining a plurality of circumferentially spaced cavities opening into an interior space of the housing. The compressor further includes a plurality of fluid volume control members, each of which is disposed within one of the plurality of cavities and defines a fluid chamber within the cavity sealed relative to the interior space. An eccentric shaft is disposed within the interior space of the housing and configured for rotation about the central axis. A hypocycloid rotor is disposed within the interior space of the housing and supported on the eccentric shaft. The rotor defines a plurality of lobes configured for movement into and out of each cavity responsive to rotation of the shaft to displace the fluid volume control member in each cavity and adjust a volume of each fluid chamber. 1. A compressor , comprising:a stationary housing disposed about a central axis and having a radially inner surface defining a plurality of circumferentially spaced cavities opening into an interior space of the housing;a plurality of fluid volume control members, each of the plurality of fluid volume control members disposed within one of the plurality of cavities and defining a fluid chamber within the cavity sealed relative to the interior space;an eccentric shaft disposed within the interior space of the housing and configured for rotation about the central axis; and,a hypocycloid rotor disposed within the interior space of the housing and supported on the eccentric shaft, the hypocycloid rotor defining a plurality of lobes configured for movement into and out of each cavity of the plurality of cavities responsive to rotation of the eccentric shaft about the central axis to displace the fluid volume control member in each cavity and adjust a volume of each fluid chamber.2. The compressor of wherein at least one of the plurality of fluid volume control members comprises a ...

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Номер записи: 73
02-01-2020 дата публикации

EXTRUSION PUMPING MODULE AND DIAPHRAGM FLUID SUPPLY DEVICE USING THE SAME

Номер: US20200003203A1
Автор: CHO Sung Am
Принадлежит:

An extrusion pumping module including a pumping unit, wherein the pumping unit includes: a plate member in a plate shape, at a center of which a flow hole opened is provided and which is formed to be inclined gradually to one outer side with respect to the flow hole; and a coupling member provided so that the pair of plate members overlap, wherein the pumping unit is coupled such that as a gap between the pair of plate members is narrowed, an accommodated material in a liquid state accommodated in the inside is extruded through the flow holes, as the gap between the pair of plate members is distanced, the accommodated material is introduced into the internal space, and a plurality of the flow holes communicate with each other. 1. An extrusion pumping module including a pumping unit , wherein the pumping unit comprises:a plate member in a plate shape, at a center of which a flow hole opened is provided and which is formed to be inclined gradually to one outer side with respect to the flow hole; anda coupling member provided so that the pair of plate members overlap so as to form a space in the inside and the outer circumferences of the pair of plate members are mutually fastened,wherein the pumping unit is coupled such that as a gap between the pair of plate members is narrowed, an accommodated material in a liquid state accommodated in the inside is extruded through the flow holes, as the gap between the pair of plate members is distanced, the accommodated material is introduced into the internal space, and a plurality of the flow holes communicate with each other.2. The extrusion pumping module of claim 1 , wherein a sealing member is included between the coupling member and the pair of plate members to perform buffering and sealing.3. The extrusion pumping module of claim 2 , further comprising a fastener which is fastened passing through the outer circumference of the plate member claim 2 , the sealing member claim 2 , and the coupling member wherein a plurality ...

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Номер записи: 74
04-01-2018 дата публикации

METHOD FOR QUANTITATIVE MEASUREMENT OF GASTRIC ACIDITY USING 13C CARBONATE SALT

Номер: US20180003695A1
Автор: Akamatsu Suguru, INADA Makoto, KUNIZAKI Jun-ichi, llZUKA Shinji, TOBITA Kazuki
Принадлежит: OTSUKA PHARMACEUTICAL CO., LTD.

The present invention provides a method for measuring the gastric acidity of a mammal using a C-labeled carbonate compound. Specifically, the present invention relates to a method for measuring the gastric acidity of a mammal including the following steps: 1. A method for measuring an effect of a gastric acid reducer on a mammal , the method comprising the following steps (1) to (4):{'b': '1', 'sup': 13', '13, 'sub': '2', '() using, as a test sample, expired air of a mammalian subject excreted at any point in time within 30 minutes after oral administration of a predetermined amount of a C-labeled carbonate compound, the oral administration being performed after administration of a gastric acid reducer, measuring behavior of COexcreted in the expired air,'}{'sup': 13', '13', '13', '13', '13, 'sub': 2', '2', '2', '2, '(2) comparing the behavior of CO(measured CObehavior) obtained in step (1) with the behavior of corresponding CO(reference CObehavior) measured in a mammal (control mammal) to which a predetermined amount of a C-labeled carbonate compound has been orally administered beforehand without administering the gastric acid reducer;'}{'sup': 13', '13, 'sub': 2', '2, '(3) determining gastric acidity of the mammalian subject based on a difference between the reference CObehavior and the measured CObehavior obtained above; and'}(4) determining the effect of the gastric acid reducer on the mammalian subject using the gastric acidity of the mammalian subject obtained above as an index.2. The method according to claim 1 , wherein the behavior of COis ΔC (‰) obtained from expired air of a mammalian subject collected at any point in time within 30 minutes after oral administration of a C-labeled carbonate compound.3. The method according to claim 1 , wherein the predetermined amount is 10 mg to 5 g.4. The method according to claim 1 , wherein the C—labeled carbonate compound is at least one carbonate compound selected from the group consisting of alkali metal ...

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Номер записи: 75
07-01-2021 дата публикации

VALVE AND FLUID CONTROL DEVICE INCLUDING VALVE

Номер: US20210003226A1
Автор: Kondo Daisuke, TANAKA Nobuhira, YOKOI Hiroyuki
Принадлежит:

A valve includes a first plate having a first vent hole; a second plate defining a valve chamber, which communicates with the first vent hole, between the second plate and the first plate, the second plate having a second vent hole that communicates with the valve chamber and that does not face the first vent hole; and a movable plate having a third vent hole that faces the second vent hole and disposed in the valve chamber such that the movable plate is movable between the first plate and the second plate. The second plate has an auxiliary hole that does not face the third vent hole in the movable plate, the auxiliary hole being surrounded by an edge portion that forms a first corner portion having a substantially convex rounded shape in front view of a principal surface of the second plate at a side facing the valve chamber. 1. A valve comprising:a first plate having a first vent hole;a second plate defining a valve chamber between the second plate and the first plate, the valve chamber communicating with the first vent hole, and the second plate having a second vent hole communicating with the valve chamber and not facing the first vent hole; anda movable plate having a third vent hole facing the second vent hole, the movable plate being disposed in the valve chamber such that the movable plate is movable between the first plate and the second plate,wherein the second plate has an auxiliary hole not facing the third vent hole of the movable plate, the auxiliary hole being surrounded by a first edge portion being a first corner portion having a substantially convex rounded shape in a front view of a principal surface of the second plate at a side facing the valve chamber.2. The valve according to claim 1 , wherein the substantially convex rounded shape has a radius of greater than or equal to about 0.005 mm and less than or equal to about 0.25 mm.3. The valve according to claim 1 , wherein the first vent hole is surrounded by a second edge portion being a second ...

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Номер записи: 76
11-01-2018 дата публикации

PUMP MECHANISM FOR VACUUM SUSPENSION SYSTEM

Номер: US20180008436A1
Автор: SANDAHL David
Принадлежит:

A vacuum suspension system includes a pump mechanism operatively connectable to a prosthetic socket. The pump mechanism has a first member and a second member. An inflatable bladder is disposed between the first and second members. A fluid chamber is located between the first and second members and fluidly separate from the inflatable bladder. Inflation of the inflatable bladder mechanically separates the first and second parts to create a vacuum pressure in the fluid chamber. 1. A vacuum suspension system comprising: a first member;', 'a second member;', 'an inflatable bladder disposed between the first and second members; and', 'a fluid chamber located between the first and second members and fluidly separate from the inflatable bladder, wherein inflation of the inflatable bladder mechanically separates the first and second parts to create a vacuum pressure in the fluid chamber., 'a pump mechanism operatively connectable to a prosthetic socket, the pump mechanism including2. The system of claim 1 , further comprising a resilient member connecting the first and second members claim 1 , the resilient member arranged to bias the fluid chamber toward a zero or near zero volume.3. The system of claim 2 , wherein the resilient member comprises a u-shaped member including a first arm connected to the first part and a second arm connected to the second part.4. The system of claim 11 , wherein the first member defines a locking feature and the resilient member defines a corresponding detent arranged to selectively lock in the locking feature.5. The system of claim 1 , further comprising a membrane having an outer edge portion secured to the first member of the pump mechanism claim 1 , the fluid chamber having a volume defined between the first member and the membrane.6. The system of claim 5 , wherein the membrane deforms to vary the volume of the fluid chamber.7. The system of claim 5 , wherein the inflation of the inflatable bladder forces the first member and a portion ...

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Номер записи: 77
08-01-2015 дата публикации

MEMBRANE VACUUM PUMP

Номер: US20150010409A1
Автор: BURGGRAF Thorsten, WISSNER Juergen
Принадлежит:

A membrane vacuum pump includes at least one membrane pump stage, at least one inlet valve for a process gas to be conveyed associated with the membrane pump stage, and at least one gas ballast valve for the supply of a ballast gas. The flow path for the ballast gas, leading through the gas ballast valve, opens into the flow path for the process gas behind the inlet valve in the direction of flow of the process gas. 112202220122220. A membrane vacuum pump comprising at least one membrane pump stage () , at least one inlet valve () for a process gas to be conveyed and at least one gas ballast valve () for the supply of a ballast gas , wherein the at least one inlet valve () is associated with the membrane pump stage () , and wherein the flow path for the ballast gas leading through the gas ballast valve () opens into the flow path for the process gas behind the inlet valve () in the direction of flow of the process gas.220. The vacuum pump in accordance with claim 1 , wherein the flow path for the ballast gas opens into the flow path for the process gas directly behind the inlet valve ().322. The vacuum pump in accordance with claim 1 , wherein the gas ballast valve () is an electromagnetic valve.42222. The vacuum pump in accordance with claim 1 , further comprising a control device claim 1 , the control device being operationally connected to the gas ballast valve () and the gas ballast valve () being able to be controlled for actuation by the control device.51412. The vacuum pump in accordance with claim 1 , further comprising at least one further membrane pump stage () in addition to the one membrane stage ().61412. The vacuum pump in accordance with claim 5 , wherein the at least one further membrane pump stage () is connected downstream of the one membrane pump stage () in the direction of flow of the process gas.722. The vacuum pump in accordance with claim 1 , wherein the gas ballast valve () has an adjustable connectivity.822. The vacuum pump in accordance ...

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Номер записи: 78
14-01-2016 дата публикации

PIEZOELECTRIC BLOWER

Номер: US20160010636A1
Автор: Kondo Daisuke, KURIHARA Kiyoshi, TANAKA Nobuhira
Принадлежит:

A piezoelectric blower includes an outer casing and a blower main body. The outer casing houses the blower main body. The blower main body includes a top plate, side plate, first vibrating plate, piezoelectric element, intermediate plate, second vibrating plate, side plate, and bottom plate and has a structure in which they are laminated in sequence. The top plate, side plate, and first vibrating plate define a columnar first blower space. The second vibrating plate, side plate, bottom plate define a columnar second blower space. The distance from a neutral plane of the piezoelectric element in the thickness direction to a surface of the second vibrating plate, the surface being near the piezoelectric element, is longer than the distance from the neutral plane to a surface of the first vibrating plate, the surface being near the piezoelectric element. 1. A piezoelectric blower comprising:a piezoelectric element having a first principal surface and a second principal surface opposed to the first principal surface and including an electrode disposed on each of the first and second principal surfaces;a first vibrating portion bonded to the first principal surface of the piezoelectric element, the first vibrating portion being configured to bend and vibrate by the piezoelectric element;a first casing bonded to a surface of the first vibrating portion opposite to the piezoelectric element, the first casing and the first vibrating portion defining a first blower space, the first casing having a first cavity communicating between the inside and outside of the first blower space;a second vibrating portion including an intermediate portion bonded to the second principal surface of the piezoelectric element and a flat plate portion connected to the intermediate portion, the second vibrating portion being configured to bend and vibrate by the piezoelectric element; anda second casing bonded to a surface of the flat plate portion opposite to the piezoelectric element, the ...

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Номер записи: 79
11-01-2018 дата публикации

DURABLE CANTED OFF-AXIS DRIVER FOR QUIET PNEUMATIC PUMPING

Номер: US20180010587A1
Автор: Berke Dennis, Bontrager David, Carlson Casey, Douglas Ryan
Принадлежит:

Apparatus and associated methods relate to nutating a piston drive linkage oriented around a longitudinal wobble axis in response to the rotation of a drive shaft about a drive axis, said wobble axis being offset and canted with respect to said drive axis. In an illustrative example, the piston drive linkage may be formed as a wobble plate extending radially from the wobble axis. Near a periphery, the wobble plate may attach to a plurality of stationary piston cranks. The nutating motion of the piston drive linkage may impart a substantially linear motion profile substantially parallel to the drive axis of rotation. A bearing oriented around the wobble axis may advantageously be freely inserted into and removed from an aperture in the wobble plate. An inner race of the bearing may freely rotate about the wobble axis in response to rotation about the drive axis. 1. An apparatus comprising:a wobble plate oriented about a wobble axis, the wobble plate having at least six distal members extending away from the wobble axis;a spinner body formed as a substantially rigid body, wherein the spinner body rotates about a drive axis of rotation in response to rotation of a drive shaft about the drive axis of rotation, and said wobble axis being offset and canted with respect to said drive axis of rotation; and,a coupling member which operably couples the wobble plate to the spinner body,wherein the coupling member imparts a nutating motion to the wobble plate in response to the rotation of the drive shaft about the drive axis of rotation.2. The apparatus of claim 1 , wherein the coupling member comprises:a shaft extending along the wobble axis, the shaft having a proximal end couplable to the spinner body;a bearing having an inner race and an outer race, each of the races symmetrically arranged for rotation relative to each other about the wobble axis;a first bearing contact surface on the outer race, wherein the first bearing contact surface is configured to directly support ...

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Номер записи: 80
14-01-2021 дата публикации

PUMP

Номер: US20210010467A1
Автор: FUJISAKI Masaaki, TANAKA Nobuhira
Принадлежит:

A pump includes a vibrating plate, a flow path forming member, a pump chamber, and a film valve. The vibrating plate is provided with a piezoelectric element, vibrates due to distortion of the piezoelectric element, and has a gap on an outer periphery. The flow path forming member is disposed so as to face the vibrating plate, and has a hole in a portion facing the vibrating plate. The pump chamber is surrounded by the vibrating plate and the flow path forming member, and has a central space communicating with the hole and an outer edge space communicating with the gap. The film valve is disposed in the pump chamber. The film valve is in contact with the vibrating plate and the flow path forming member when a pressure in the central space is lower than a pressure in the outer edge space. 1. A pump comprising: a vibrating plate having a piezoelectric element disposed on one principal surface,', 'a support plate, and', 'a plurality of support members connecting the vibrating plate and the support plate and supporting the vibrating plate so that the vibrating plate is configured to vibrate in a principal surface direction, and including:', 'a first vent hole between the plurality of support members;, 'a plate-shaped member includinga flow path forming member disposed so as to face the plate-shaped member and having a second vent hole in a portion facing the plate-shaped member;a pump chamber provided so as to be surrounded by the plate-shaped member, the flow path forming member, and a side wall member connected to the plate-shaped member and the flow path forming member, and having a central space communicating with the second vent hole and an outer edge space communicating with the first vent hole; anda first film valve disposed in the pump chamber, whereinthe first film valve is in contact with the vibrating plate and the flow path forming member when a pressure in the central space is lower than a pressure in the outer edge space.2. The pump according to claim 1 , ...

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Номер записи: 81
09-01-2020 дата публикации

LIQUID SUPPLY SYSTEM

Номер: US20200011322A1
Автор: FURUTA Kiyotaka, MORI Koichi
Принадлежит:

A liquid supply system that can prevent or reduce the occurrence of cavitation without an increase in the overall size of the apparatus. The liquid supply system includes a first pump chamber P formed by a space surrounding the outer circumference of a first bellows , a second pump chamber P formed by a space surrounding the outer circumference of a second bellows , a first check valve A provided in a fluid passage passing through the first pump chamber P to block backflow of fluid, and a second check valve B provided in a fluid passage passing through the second pump chamber P to block backflow of fluid. The first check valve A and the second check valve B are both provided in the container and disposed on the side opposite to an actuator that drives a shaft member , with respect to the shaft member 1. A liquid supply system comprising:a container having an inlet and an outlet for fluid;a shaft member that moves vertically upward and downward in the container;a first bellows and a second bellows disposed one above the other along the vertical direction in the container, each of which expands and contracts with upward and downward motion of the shaft member;a first pump chamber formed in the container by a space surrounding the outer circumference of the first bellows;a second pump chamber formed in the container by a space surrounding the outer circumference of the second bellows;a first check valve provided in a fluid passage passing through the first pump chamber to block backflow of fluid; anda second check valve provided in a fluid passage passing through the second pump chamber to block backflow of fluid,wherein the first check valve and the second check valve are both provided in the container and disposed on the side opposite to an actuator that drives the shaft member, with respect to the shaft member.2. The liquid supply system according to claim 1 , wherein the first check valve includes an annular first valve body that moves upward while receiving the ...

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Номер записи: 82
09-01-2020 дата публикации

LIQUID SUPPLY SYSTEM

Номер: US20200011323A1
Автор: FURUTA Kiyotaka, MORI Koichi, TAKATA Hiroshi
Принадлежит:

A liquid supply system that can be cooled efficiently. The liquid supply system includes a container having an inlet and an outlet for liquid and provided with pump chambers P, P inside it, supply passages Xc through which the liquid flowing in through the inlet is supplied to the pump chambers P, P, and a discharge passage Xd through which the liquid discharged from the pump chambers P, P is brought to the outlet . Portions of an inner surface of the liquid supply system that are in contact with the liquid are each provided with an increased surface structure having an increased liquid contact area and extending along the direction L, L of flow of the liquid. 1. A liquid supply system comprising:a container having an inlet and an outlet for liquid and provided with a pump chamber inside it;a supply passage through which the liquid flowing in through the inlet is supplied to the pump chamber; anda discharge passage through which the liquid discharged from the pump chamber is brought to the outlet,wherein a portion of an inner surface of the liquid supply system that is in contact with the liquid is provided with an increased surface structure having an increased liquid contact area and extending along the direction of flow of the liquid.2. The liquid supply system according to claim 1 , wherein the increased surface structure includes depressions and projections.3. The liquid supply system according to claim 1 , wherein the increased surface structure is provided in the pump chamber.4. The liquid supply system according to claim 3 , wherein the pump chamber has a substantially axisymmetric shape claim 3 , a pump inlet with which the supply passage is joined is provided on one axial side of the pump chamber claim 3 , a pump outlet with which the discharge passage is joined is provided on the other axial side of the pump chamber claim 3 , and the increased surface structure is provided uniformly along the axial direction of the pump chamber.5. The liquid supply system ...

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Номер записи: 83
15-01-2015 дата публикации

ZERO WASTE DOSING METHOD AND APPARATUS FOR FILLING CONTAINERS OF LIQUIDS

Номер: US20150013825A1
Автор: Ragazzini Ivan, Trebbi Claudio
Принадлежит:

Zero waste dosing method for filling containers of liquids which provides to use, at a delivery station of the liquid product, at least a volumetric pump with a rotor and stator, associated with a tank of the liquid to be introduced into said containers. 1. A zero waste dosing method to fill containers of liquids which provides to use , at a delivery station of the liquid product , at least a volumetric pump with a rotor and stator , associated with a tank of the liquid to be introduced into said containers , comprising a step of filling each container , defining a “zero” angular start-of-delivery position of the volumetric pump and an angular end-of-delivery position of the desired quantity of liquid as a function of the “zero” angular position , wherein the “zero” angular position and/or the angular end-of-delivery position of the desired quantity of liquid are controlled and regulated by control and command means configured to re-position the “zero” angular position and/or the angular end-of-delivery position , said method providing to control , by means of selective interception of the liquid delivered downstream of the outlet pipe of the volumetric pump , the desired delivery quantity of the liquid by defining an end-of-cycle delivery transitory through the angular end-of-delivery position.2. The method as in claim 1 , characterized in that after the end-of-cycle delivery transitory an angular delivery extra-travel is defined claim 1 , determined by the rotation necessary to bring the rotor of the volumetric pump to the “zero” angular start-of-delivery position claim 1 , in which claim 1 , when the angular end-of-delivery position is reached by the rotor of the volumetric pump claim 1 , the stream of liquid directed toward the container in said transitory and along said angular extra-travel is intercepted in order to divert it completely into the tank.3. The method as in claim 1 , characterized in that it provides to identify the position and the temporal ...

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Номер записи: 84
19-01-2017 дата публикации

DYNAMIC TIRE PRESSURE REGULATOR FOR BICYCLES

Номер: US20170015148A1
Автор: SERRET AVILA Javier, VERSTRAETE Mathijs
Принадлежит: VERSEC SPRL

A wheel hub assembly of a bicycle wheel is disclosed that include a wheel axle, a rotary pump that may be composed of a pump housing, a pump rotor, a first fluid port configured for fluidly coupling to a pneumatic tire and a second fluid port configured for fluidly coupling to a fluid reservoir. The assembly allows for conveniently and efficiently modifying the tire pressure in bicycles at will while riding, in as many cycles as desired and without contaminating the air inside the tires. 1. A wheel hub assembly of a bicycle wheel , comprising:a wheel axle; a pump housing;', 'a pump rotor;', 'a first fluid port configured for fluidly coupling to a pneumatic tire and a second fluid port configured for fluidly coupling to a fluid reservoir, wherein the pump rotor is configured for displacing fluid between the first and second fluid ports; and', 'a control means for controlling actuation of the pump rotor,, 'a rotary pump comprisingwherein the pump rotor is configured for rotating relative to the pump housing coaxially with the wheel axle, and the pump housing is configured for rotating relative to the wheel axle.2. An assembly for regulating pressure of a pneumatic tire of a bicycle wheel , comprising:a fluid reservoir configured for mounting on the wheel, concentric to an axle of the wheel and configured for storing fluid at a higher pressure than the pressure in the pneumatic tire, a pump housing;', 'a pump rotor;', 'a first fluid port configured to be in fluid communication with the pneumatic tire; and', 'a second fluid port configured to be in fluid communication with the reservoir; and, 'a rotary pump comprisinga control means for controlling actuation of the pump rotor, wherein the pneumatic tire, the reservoir, the pump rotor, and the first and second fluid ports are configured to form a closed fluid circuit and wherein the pump rotor is configured for displacing fluid between the first and second fluid ports,wherein the pump rotor is configured to rotate ...

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Номер записи: 85
03-02-2022 дата публикации

FLUID DEVICE

Номер: US20220034310A1
Автор: Giousouf Metin, Munz Gebhard
Принадлежит:

A fluid device including a fluid chamber which is designed for receiving a fluid and which is commonly delimited by a device housing and a bending-elastic membrane element. The membrane element with a peripheral edge section is fixed to the device housing in a fluid-tight manner and has a membrane working section which is framed by the peripheral edge section and which for the change of the volume of the fluid chamber can be elastically deflected by a piezoactuator. The membrane element consists of a rubber-elastic material, wherein the piezoactuator comprises a drive section which extends along the membrane working section, is embedded into the membrane element and is enveloped by the rubber-elastic material of the membrane element. 1. A fluid device comprising a fluid chamber which is designed for receiving a fluid and which is commonly delimited by a device housing and a bending-elastic membrane element which has a planar extension in a main extension plane , wherein the membrane element at its peripheral edge section is fixed to the device housing in a fluid-tight manner and wherein a membrane working section of the membrane element , which is framed by the peripheral edge section , for the change of the volume of the fluid chamber can be elastically deflected in a working direction which is orientated transversely to the main extension plane whilst carrying out a stroke movement , by a piezoactuator of the fluid device which acts upon the membrane element , wherein the membrane element consists of a rubber-elastic material , wherein the piezoactuator comprises a drive section which extends along the membrane working section , is embedded into the membrane element and is enveloped by the rubber-elastic material of the membrane element.2. The fluid device according to claim 1 , wherein the membrane element consists of an elastomer material.3. The fluid device according to claim 1 , wherein the piezoactuator is fixed to the membrane element in a manner such that ...

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Номер записи: 86
21-01-2016 дата публикации

FOUR ROLLER PERISTALTIC PUMP

Номер: US20160017880A1
Автор: MAGUIRE Stephen B.
Принадлежит:

A peristaltic pump for supplying liquid color to a process machine, comprising a stepper motor including an output shaft, a drive roller mounted on the output shaft, and a collection of planetary rollers positioned about and frictionally contacting driven by the output shaft, for sequentially compressing a flexible tube carrying the liquid color thereby dispensing liquid color from the tube. 1. A peristaltic pump for supplying liquid color to a process machine , comprising:a. a stepper motor;b. a plurality of rollers frictionally contactingly driven by the stepper motor, for compressing a tube carrying liquid color to dispense liquid color from the tube.2. A peristaltic pump , comprising:a. a stepper motor;b. a plurality of manually actuated switches for entering numbers;c. a plurality of screens for displaying the manually entered numbers;d. a microprocessor using the manually entered numbers to regulate speed of the stepper motor to furnish liquid color at a preselected rate.3. The pump of further comprising rollers claim 2 , driven by the stepper motor claim 2 , for squeezing a tube to output pumped liquid color.4. The pump of wherein the rollers are frictionally driven by the stepper motor.5. The pump of wherein the rollers are planetary rollers.6. The pump of wherein the switches are pushbuttons.7. The pump of wherein the switches are thumbwheels.8. The pump of wherein the thumbwheels are digital thumbwheels.9. The pump of wherein the numbers are (i) output rate in pounds per hour of a process machine receiving the pumped liquid color; (ii) percentage by weight of the pumped liquid color to be used by the process machine; and (iii) density of the liquid color.10. A peristaltic pump for supplying liquid color to a process machine claim 2 , comprising:a. a stepper motor;b. a pump head having a groove therein for receiving a liquid color tube;c. a plurality of rollers frictionally driven by the stepper motor, for compressing the tube carrying liquid color while in ...

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Номер записи: 87
18-01-2018 дата публикации

Abnormal discharge detection device and abnormal discharge detection method

Номер: US20180017052A1
Автор: Masami Naka, Tsukasa SAKAZAKI, Yoshimichi HIGASHIYAMA
Принадлежит: JTEKT Corp

A pump included in an oil supply unit includes a piezoelectric body that is repeatedly deformed when a pulsed drive voltage is applied from a drive unit. The pump discharges lubricant as the volume of a storage unit that stores fluid to be supplied decreases with deformation of the piezoelectric body. An abnormal discharge detection device that detects an abnormal fluid discharge operation of the pump includes: a measurement unit that measures a terminal voltage of the piezoelectric body; and a control unit functioning as a determination unit that determines if the discharge operation is being performed normally or not based on whether or not the measured terminal voltage has changed with time during application of a pulse of the drive voltage.

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Номер записи: 88
17-01-2019 дата публикации

TUBE PUMP

Номер: US20190017500A1
Автор: MINATODANI Yoji
Принадлежит: WELCO CO., LTD.

A tube pump includes a base, a columnar inner peripheral surface, a tube disposed along the inner peripheral surface, a rotor disposed concentrically with the inner peripheral surface and supported by the base while squeezing the tube between the rotor and the inner peripheral surface, and a drive unit having a drive shaft passing through the base and configured to couple with the rotor, the base having a cylindrical supporting part configured to support the rotor and the drive shaft being inserted in a hollow portion of the supporting part, the tube pump including a bearing configured to rotatably support the rotor, the rotor having a body on which a coupling hole configured to accommodate the supporting part and the bearing is formed and an annular groove extending in a circumferential direction being formed on an inner peripheral surface of the body, the bearing fitting in the annular groove. 1. A tube pump , comprising:a base;a columnar inner peripheral surface disposed at one face side of the base;a tube of which at least a portion is disposed along the inner peripheral surface;a rotor disposed concentrically with the inner peripheral surface and rotatably supported by the base while squeezing the tube between the rotor and the inner peripheral surface; anda drive unit attached on an other face side of the base and having a drive shaft passing through the base and configured to couple with the rotor,wherein the base has a cylindrical supporting part protruding to the one face side and configured to support the rotor,wherein the drive shaft is inserted in a hollow portion of the supporting part,wherein the tube pump further comprises a bearing put on an outer periphery of the supporting part and configured to rotatably support the rotor,wherein the rotor has a substantially cylindrical body on which a coupling hole configured to accommodate the supporting part and the bearing is formed,wherein an annular groove extending in a circumferential direction is formed ...

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Номер записи: 89
21-01-2021 дата публикации

MICRO PUMP

Номер: US20210017976A1
Автор: CHEN SHIH-CHANG, Han Yung-Lung, Huang Chi-Feng, Kao Chung-Wei, Lee Wei-Ming, Liao Hung-Hsin, Liao Jia-Yu, Mou Hao-Jan, Tsai Chang-Yen
Принадлежит: Microjet Technology Co., Ltd.

A micro pump is disclosed and includes a fluid-converging plate, a valve membrane, a fluid-outlet plate and a pump core module. The fluid-converging plate includes an inner recess, a protruding portion and a fluid-converging aperture. The protruding portion is disposed at a center of the inner recess. The valve membrane includes a valve aperture. The protruding portion of the fluid-converging plate abuts against the valve aperture. A fluid-converging chamber is formed between the valve membrane and the fluid-converging plate. The fluid-outlet plate in a ring shape includes a fluid-outlet channel. The valve aperture is in fluid communication with the fluid-outlet channel. When the fluid is inhaled into the pump core module, the fluid flows to the fluid-converging chamber through the fluid-converging aperture and then pushes out the valve membrane to flow into the fluid-outlet channel of the fluid-outlet plate through the valve aperture. Thereby the fluid transportation is achieved. 1. A micro pump comprising: an outer groove disposed on the first surface;', 'an inner recess disposed on the first surface and surrounded by the outer groove; a protruding portion disposed on the first surface and located at a center of the inner recess;', 'at least one fluid-converging aperture disposed in the inner recess and adjacent to an outer edge of the protruding portion, wherein the fluid-converging aperture penetrates the first surface and the second surface of the fluid-converging plate; and', 'a fluid-converging peripheral wall disposed on the second surface of the fluid-converging plate to define a fluid-converging space;, 'a fluid-converging plate having a first surface and a second surface, wherein the first surface and the second surface are two opposite surfaces, and the fluid-converging plate comprisesa valve membrane disposed in the inner recess of the fluid-converging plate and comprising a valve aperture disposed at a center of the valve membrane, wherein the ...

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Номер записи: 90
21-01-2021 дата публикации

AIR BLOWING DEVICE

Номер: US20210017977A1
Автор: NOMOTO Hidetaka, Sakai Masaharu, TAKEUCHI Yasuhiro, YAMAOKA Jun, Yoshida Tatsuya, YOSHINO Etsuro
Принадлежит:

An air blowing device includes a duct portion and a passage variable device. The duct portion forms a main passage through which an air flow passes, and an outlet is defined downstream of the main passage to blow out the air flow. The passage variable device is configured to change a passage area of the main passage so that the air flow becomes a pulsating flow and is blown out from the outlet. 1. An air blowing device comprising:a duct portion that forms a main passage through which an air flow passes, an outlet being defined downstream of the main passage to blow out the air flow; anda passage variable device configured to change a passage area of the main passage so that the air flow becomes a pulsating flow and is blown out from the outlet.2. The air blowing device according to claim 1 , further comprisinga guiding structure provided in the duct portion to make a velocity distribution of the air flow uniform, the guiding structure being located downstream of a passage variable portion of the duct portion where the passage area is changed by the passage variable device.3. The air blowing device according to claim 2 , whereinthe duct portion has an enlarged portion where the passage area of the main passage is larger than an open area of the outlet at a location between the passage variable portion and the outlet, andthe guiding structure includes the enlarged portion.4. The air blowing device according to claim 2 , whereinthe duct portion has an enlarged portion where the passage area of the main passage is larger than an open area of the outlet at a location between the passage variable portion and the outlet,the duct portion has a flare portion downstream of the enlarged portion to be continuous with the outlet, in which an inner surface of the main passage is separated from a central axis of the main passage as approaching the outlet, andthe guiding structure includes the enlarged portion and the flare portion.5. The air blowing device according to claim 2 , ...

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Номер записи: 91
16-01-2020 дата публикации

ACTUATOR SUPPORT STRUCTURE AND PUMP DEVICE

Номер: US20200018303A1
Автор: HIRATA Atsuhiko, KODAMA Yukiharu, OMORI Kenta
Принадлежит:

A piezoelectric pump includes a leaf spring including a disc portion defining an actuator, an outer frame portion defining a housing, and an elastic support portion. The actuator flexurally vibrates from a center portion of a principal surface thereof to an outer periphery thereof. The elastic support portion includes a beam portion and connection portions and elastically supports the disc portion on the outer frame portion. The beam portion extends in a gap between the disc portion and the outer frame portion in a direction along an outer periphery of the disc portion. A first of the connection portions connects the beam portion to the disc portion. Second and third connection portions are offset from the first connection portion and connect the beam portion to the outer frame portion. 1. (canceled)3. The actuator structure according to claim 2 , wherein the beam portion has a substantially straight shape.4. The actuator structure according to claim 2 , wherein the beam portion has an arc shape or substantially arc shape.5. The actuator structure according to claim 2 , wherein claim 2 , in each of the plurality of elastic support portions claim 2 , the side wall connection portion is connected to an end of the beam portion.6. The actuator structure according to claim 2 , whereineach of the plurality of elastic support portions includes two of the side wall connection portions; andin each of the plurality of elastic support portions, the actuator connection portion is located between the two side wall connection portions.7. The actuator structure according to claim 2 , wherein the beam portion is configured such that a beam portion length is provided without folding the beam portion.8. The actuator structure according to claim 2 , wherein the actuator has a disc shape.10. The pump device according to claim 9 , wherein the beam portion has a substantially straight shape.11. The pump device according to claim 9 , wherein the beam portion has an arc shape or ...

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Номер записи: 92
21-01-2021 дата публикации

MINIATURE OPTICAL PARTICULATE MATTER SENSOR MODULE

Номер: US20210018421A1
Автор: Chen Tao, FENG CHEN, Liu Jennifer, Shang Tong
Принадлежит:

Embodiments of the disclosure include a miniature optical PM sensor module. A miniature optical particulate matter sensor module may comprise a housing; a micro airflow generator positioned within the housing; an actuator positioned adjacent to the micro airflow generator and configured to drive the micro airflow generator; a miniature particulate matter sensor board assembly in fluid communication with the micro airflow generator; and a flex cable assembly configured to attach to at least one of the housing and the miniature particulate matter sensor board assembly. 120-. (canceled)21. A miniature optical particulate matter sensor module comprising:a housing;a micro airflow generator positioned within the housing;an actuator positioned adjacent to the micro airflow generator and configured to drive the micro airflow generator;a miniature particulate matter sensor board assembly in fluid communication with the micro airflow generator; anda connection assembly configured to attach to at least one of the housing and the miniature particulate matter sensor board assembly.22. The miniature optical particulate matter sensor module of claim 21 , wherein the connection assembly comprises a flex cable assembly.23. The miniature optical particulate matter sensor module of claim 21 , wherein the micro airflow generator comprises a micro membrane pump.24. The miniature optical particulate matter sensor module of claim 23 , wherein the micro membrane pump comprises a deformable membrane plate claim 23 , an air outlet check valve claim 23 , an air inlet check valve claim 23 , and a fixed air inlet plate.25. The miniature optical particulate matter sensor module of claim 21 , wherein the actuator is a MEMS actuator.26. The miniature optical particulate matter sensor module of claim 25 , wherein the MEMS actuator comprises a cover claim 25 , a MEMS vertical motion comb drive actuator claim 25 , a MEMS substrate claim 25 , and a base plate.27. The miniature optical particulate ...

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Номер записи: 93
22-01-2015 дата публикации

METHOD, SYSTEM AND APPARATUS FOR DISPENSING PRODUCTS FOR A PERSONAL CARE SERVICE, INSTRUCTING ON PROVIDING A PERSONAL CARE TREATMENT SERVICE, AND SELECTING A PERSONAL CARE SERVICE

Номер: US20150021356A1
Автор: Arnold William, Barakat Alana, Bush Scott, DeSilva Dilan, THOMPSON Eric, Wickstrom Carl, Witchell David J.
Принадлежит: Colorculture Network, LLC

A method, system and apparatus for delivery of custom blended dispensing custom blended personal care beauty products for a beauty service, wherein one or more components of a beauty product are stored where they may be supplied as needed to a dispenser, and where a control mechanism regulates the dosage of beauty components to provide a desired selected personal care beauty product with the characteristics selected. A selection screen display provides an image of a person and the person's hair that may be manipulated to simulate modifications that may include cut or styling and color or other effects. The selections are processed and stored and a formula is generated and communicating to a dispensing device to deliver the product components to produce the formula. 1. A system for dispensing a beauty product formed from a plurality of beauty product components , the system comprising:a) a frame;b) a dispenser supported on said frame having at least one dispensing outlet;c) a plurality of beauty product components, each of the said beauty product components being contained in a respective container;d) said dispenser including a plurality of lines, each line of said plurality of lines having a passageway therethrough, each said line communicatively linking one of said plurality of said containers with said dispensing outlet;e) said dispenser including a control mechanism and a pumping mechanism;f) wherein said pumping mechanism alternates between compression and relaxation of a respective line of said plurality of lines to regulate the delivery of said plurality of beauty product components from their respective containers;g) wherein said control mechanism regulates the operation of said pumping mechanism to deliver dosages of a plurality of said respective beauty product components to said dispensing outlet to provide a beauty product.2. The system of claim 1 , wherein said pumping mechanism when in compression with said line sealingly closes the passageway of said ...

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Номер записи: 94
28-01-2016 дата публикации

Detection System for Flow Control Apparatus

Номер: US20160022545A1
Автор: Boulanger Jason, Hudson Joseph, Trelford Lester Paul
Принадлежит:

A flow control apparatus adapted to receive a feeding set includes a housing capable of receiving at least a portion of the feeding set. A pumping device is supported by the housing and positioned to contact the feeding set when the feeding set is received by the housing so the pumping device acts on the feeding set to produce fluid flow in the feeding set for delivery of fluid to a subject. An ultrasonic sensor is supported by the housing and arranged with respect to the pumping device to produce a sensor signal indicative of a viscosity of the fluid delivered through the feeding set. A control circuit is in communication with the ultrasonic sensor for receiving the sensor signal from the sensor indicative of the viscosity of the fluid and in communication with the pumping device to control operation thereof. 1. A flow control apparatus adapted to receive a feeding set , said flow control apparatus comprising:a housing capable of receiving at least a portion of the feeding set;a pumping device associated with the housing and positioned to contact the feeding set when the feeding set is received by the housing so the pumping device acts on the feeding set to produce fluid flow in the feeding set for delivery of fluid to a subject;an ultrasonic sensor arranged with respect to the pumping device to produce a sensor signal indicative of a viscosity of the fluid delivered through the feeding set; anda control circuit in communication with the ultrasonic sensor for receiving the sensor signal from the sensor indicative of the viscosity of the fluid and in communication with the pumping device to control operation thereof, the control circuit being configured to determine a representation of the viscosity of the fluid from the sensor signal and to operate the pumping device to produce a fluid flow rate based on the representation of the viscosity.2. The flow control apparatus set forth in wherein the control circuit is configured to determine the viscosity by analyzing an ...

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Номер записи: 95
17-04-2014 дата публикации

Face drive fluid pump

Номер: US20140105766A1
Автор: Darren Sharman
Принадлежит: Siemens Healthcare Diagnostics Inc

A fluid pump comprising a fluidic manifold comprising a plate constructed of a fluid-impermeable material. The plate has a pump platen, first fluid connectors, and second fluid connectors, and one or more channels formed therein for connecting the first connectors to the second connectors. The fluid pump has a fluid-impermeable membrane positioned on the plate and covering the one or more fluid channels to form one or more fluid paths. The fluid pump also has a pump tubing positioned on the pump platen, the pump tubing having a first part connected to a first one of the first fluid connectors and a second part connected to a second one of the first fluid connectors such that the pump tubing is fluidly connected to the channels via the first one and the second one of the first fluid connectors.

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Номер записи: 96
17-04-2014 дата публикации

Fluid transporting device of the peristaltic type with a push pin and push plate arrangement

Номер: US20140105771A1
Автор: Hajime Miyazaki, KAZUO Kawasumi, Kenichi Ushikoshi
Принадлежит: Seiko Epson Corp

A fluid transporting device includes an elastic tube, a tube frame that holds the elastic tube in an arc, a rotary push plate arranged in the arc for facilitating fluid flow inside the elastic tube, and a plurality of push pins disposed between the elastic tube and the center of the arc. Each push pin includes a semispherical end portion that contacts the rotary push plate, a pushing end portion that places a bias on the elastic tube, and adjacent end portions of at least two push pins close the elastic tube when the semispherical end portions are pushed by an outer circumference arc of the rotary push plate.

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Номер записи: 97
22-01-2015 дата публикации

DISC PUMP WITH ADVANCED ACTUATOR

Номер: US20150023821A1
Автор: Buckland Justin Rorke, Campbell Andrew Robert
Принадлежит:

A fluid pump comprising one or two cavities which, in use, contains a fluid to be pumped, the chamber or chambers having a substantially cylindrical shape bounded by first and second end walls and a side wall; an actuator which, in use, causes oscillatory motion of the first end wall(s) in a direction substantially perpendicular to the plane of the first end wall(s); and whereby, in use, these axial oscillations of the end walls drive radial oscillations of the fluid pressure in the main cavity; and wherein an isolator forms at least a portion of the first end wall between the actuator and the side wall and includes conductive tracks, wherein electrical connection is made to the actuator via the conductive tracks included within the isolator. 1. A pump comprising:a pump body having pump walls with a first substantially cylindrical shaped cavity having a side wall closed by two end walls for containing a fluid, the first cavity having a height (h) and a radius (a), wherein a ratio of the radius (a) to the height (h) is greater than about 1.2;an actuator operatively associated with a central portion of a first of the two end walls of the first cavity and adapted to cause an oscillatory motion of said first end wall at a frequency (f) thereby generating radial pressure oscillations of the fluid within the first cavity including at least one annular pressure node in response to a drive signal being applied to said actuator;a first aperture disposed at a location in one of the two end walls of the first cavity and extending through the pump wall;a second aperture disposed at any location in the walls of the first cavity other than the location of the first aperture and extending through the pump wall; anda first valve disposed in one of the first and second apertures to enable the fluid to flow through the first cavity when in use; andan isolator forming at least a portion of said first end wall between the actuator and the side wall and including conductive ...

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Номер записи: 98
26-01-2017 дата публикации

Engine Revision for Peristaltic Oil Change

Номер: US20170022858A1
Автор: Bach David T.
Принадлежит:

A method and a kit for oil removal or injection into the oil pan of a vehicle, marine or aircraft engine. A modified dip stick tube extends to the bottom of the oil pan has at least one or more openings at its bottom end to allow oil to enter or exit. The top has an air-tight seal that can be attached to a flexible tube that can be run to a peristaltic pump. The pump can have an exit tube that runs into an oil recovery receptacle. After draining, the oil, the tube can be valved or physically relocated to a fresh oil source. The direction of rotation of the pump can be reversed to fill the oil pan with fresh oil. An electric control can run the pump in both a forward and reverse direction typically from a vehicle battery voltage source. 1. A method of facilitating removal or addition of oil for a boat or vehicle engine having an oil pan comprising:modifying an existing vehicle dip stick tube to have an air-tight seal at a proximal end and to extend to the bottom of the oil pan, and to have at least one hole at a distal end, or providing to the vehicle a dip stick tube having an air-tight seal at a proximal end that extends to the bottom of the oil pan and at least one opening at a distal end;providing at least: a peristaltic pump adapted to receive and pass through a flexible tube, the flexible tube adapted to mate with the air-tight seal on the dip stick tube at a first end, pass through the peristaltic pump, and run to an oil recovery receptacle at a second end;providing a peristaltic pump motor mechanically coupled to the peristaltic pump adapted to rotate the peristaltic pump;providing an electric control adapted to allow the peristaltic pump motor to be powered from a voltage source;instructing a user to run the flexible tube through the peristaltic pump;instructing the user to attach the first end of the flexible tube to the dip stick tube;instructing the user to run the second end of the flexible tube into the oil recovery receptacle;instructing the user to ...

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Номер записи: 99
28-01-2016 дата публикации

METHOD FOR ATTACHING PUMPS TO ELECTRIC MOTORS

Номер: US20160025086A1
Автор: MEZA Humberto V.
Принадлежит:

A pump features a motor, a pump head (PH) and a locking pin (LP) that are uniquely coupled together. The motor has a front end bell (FEB) with a FEB coupling portion configured with twist lock style (TLS) connections with locking portions, and an outer surface with a detent. The PH has a PH portion with a PH coupling portion configured with corresponding TLS connections with corresponding locking portions, each having a locking stop, the PH portion has an outer surface having a threaded orifice. The LP has a threaded portion and an end portion, threads into the threaded orifice and engages the detent after assembly of the motor and PH. Each corresponding TLS connection couples to a respective TLS connection when the FEB coupling portion and the PH coupling portion is pushed together. Each locking portion engages a respective corresponding locking portion when the FEB coupling portion, and the PH coupling portion is twisted together in relation to one another about the longitudinal axis of the pump. Each locking stop abuts against a respective locking portion to stop the FEB coupling portion and the PH coupling portion from twisting together, so the detent and the threaded orifice are aligned to receive the LP, and the motor and pump head are locked together and cannot be pulled apart. 1. A pump comprising:a motor having a front end bell with a front end bell coupling portion configured with twist lock style connections with locking portions, and configured with an outer surface with at least one motor locking receiving portion formed therein;a pump head having a pump head portion with a pump head coupling portion configured with corresponding twist lock style connections with corresponding locking portions, each corresponding locking portion configured with a locking stop, the pump head portion configured with a corresponding outer surface having a pump head locking receiving portion formed therein; anda locking member configured to pass through the pump head ...

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Номер записи: 100