ТРУБА

Изобретение относится к трубе, изготавливаемой из нескольких различных пластмассовых материалов в устройстве для экструдирования, в котором создаются высокие давления и большие механические напряжения в участке насадки, то есть на участке экструдирования. Труба выполнена из нескольких различных материалов и содержит внутренний слой из пластмассы, внутренний электродный слой, изолирующий слой и внешний электродный слой. Внутренний электродный слой расположен снаружи внутреннего слоя из пластмассы. Изолирующий слой расположен на внешней стороне внутреннего электродного слоя. Внешний электродный слой размещен на внешней стороне изолирующего слоя. Внутренний слой из пластмассы выполнен методом непрерывного экструдирования. Изолирующий слой выполнен из вспененной пластмассы. Изобретение позволяет своевременно обнаружить повреждения и утечки в районах магистральных труб и облегчить их местонахождение. 5 з.п. ф-лы, 10 ил.

СПОСОБ И УСТРОЙСТВО ДЛЯ СВАРКИ ПЛАСТИКОВЫХ ТУБ ИЗНУТРИ

Группа изобретений относится к способу изготовления полимерной упаковки трубчатой формы, упаковке трубчатой формы, изготовленной данным способом, и устройству для его осуществления. Способ включает этап сворачивания, в процессе которого сворачивают прокатный материал, этап размещения, в процессе которого края прокатного материала размещают встык, и этап скрепления, в процессе которого края прокатного материала скрепляют друг с другом путем сварки. При этом полимерный шнур экструдируют и в расплавленном состоянии накладывают на внутреннюю поверхность упаковки так, чтобы перекрыть по меньшей мере зону сварки, определенную между краями. Причем энергия, необходимая для получения зоны сварки, обеспечивается полимерным шнуром. Упаковка содержит элемент упрочнения зоны, определенной между краями, состоящий из экструдированного полимерного шнура. Устройство содержит сварочный стержень, выполненный с возможностью окружения его прокатным материалом, и средства для экструдирования и наложения полимерного ...

СПОСОБ ПРЕССОВАНИЯ МНОГОСЛОЙНЫХ ЗАГОТОВОК ИЗ РАЗЛИЧНЫХ ПОРОШКОВЫХ МАТЕРИАЛОВ С ВЕРТИКАЛЬНЫМ РАСПОЛОЖЕНИЕМ СЛОЕВ

Сущность изобретения: многослойные заготовки получают таким образом, что порошковый материал подают в пресс-форму к предварительно уплотненной части брикета, порошковые материалы совместно уплотняют с помощью двухстороннего прессования, проводимого с рядом технологических особенностей. При этом получают прессовки требуемых размеров. В качестве материала основного слоя используют нелигированный или низколегированный стальной порошок, а в качестве материала дополнительных слоев - порошки карбидов и/или оксидов металлов, сталей и металла с памятью формы. 3 з. п. ф-лы, 6 ил.

СОЭКСТРУДИРОВАННАЯ МНОГОСЛОЙНАЯ ПЛАСТМАССОВАЯ ТРУБА, СПОСОБ И УСТРОЙСТВО ДЛЯ ЕЕ ПОЛУЧЕНИЯ

Изобретение относится к области производства труб. Соэкструдированная многослойная пластмассовая труба содержит одну или более внутренних труб, окруженных средним слоем из более мягкого материала, чем внутренняя труба, и наружную трубу, заключающую в себя средний слой, окружающий одну или более внутренних труб. Внутренняя труба имеет кольцевую жесткость выше, чем кольцевая жесткость среднего слоя, а сжатие стенки среднего слоя составляет по меньшей мере 1,5% от внутреннего диаметра трубы. Сжатый газ вводят в полимерный материал в зоне пластицирования шнека для среднего слоя в точке, где полимерный материал является, по существу, уже расплавленным, а газ смешивают с полимерным материалом и экструдируют в полость, образованную внутренней трубой (трубами) и наружной трубой. Калибровочное устройство, которое калибрует наружную и внутреннюю поверхности многослойной трубы одновременно, монтируется так близко к соплу формующего инструмента, что часть вспенивания обеспечивается в калибровочном ...

ХОККЕЙНАЯ КЛЮШКА

... 1. Стержень хоккейной клюшки, содержащийудлиненную по существу прямоугольную трубку, имеющую длину и боковые стенки, которые по меньшей мере частично образуют удлиненную внутреннюю полость трубки,причем полость проходит по длине трубки, а боковые стенки включают первую боковую стенку,вторую боковую стенку, расположенную противоположно первой боковой стенке, ипару противоположных третьей и четвертой боковых стенок, отделяющих первую боковую стенку от второй боковой стенки, при этомвторая боковая стенка включает противоположные первый край и второй край, соответственно соединенные с краем третьей боковой стенки и краем четвертой боковой стенки,несущий элемент, расположенный в полости, проходящий по длине трубки, выполненный по существу плоским и соединяющий первую и вторую боковые стенки друг с другом около их соответствующих средних точек, при этом несущий элемент по существу параллелен третей и четвертой боковым стенкам,первый диагональный несущий элемент, проходящий от первого края второй ...

ПОВОРОТНОЕ УСТРОЙСТВО ДЛЯ СВАРКИ УПАКОВОЧНОЙ ТУБЫ

ТЕРМОУСАДОЧНАЯ ПЛЕНКА С ПОЛИАМИДОМ 6/6.6

ТЕРМОУСАДОЧНАЯ ПЛЕНОЧНАЯ ТРУБА И СПОСОБ ИЗГОТОВЛЕНИЯ ПОЛЫХ СОСТАВНЫХ ДЕТАЛЕЙ

ЭКСТРУЗИОННАЯ УСТАНОВКА С ТОРМОЗНЫМ УСТРОЙСТВОМ, РЕГУЛИРУЮЩИМ ДАВЛЕНИЕ ПОДПОРА

... 1. Экструзионная установка для изготовления цилиндрических полуфабрикатов из пластмассы,a) с экструдером (1) для подготовки нагруженного давлением расплава пластмассы,b) по меньшей мере с одним размещенным на экструдере (1) экструзионным инструментом (7), проходя через который, расплав выходит из экструдера (1) в виде, по существу, цилиндрического тяжа (8) пластмассы,c) с расположенным после экструзионного инструмента (7) обеспечивающим охлаждение тяжа (8) пластмассы и придание ему наружного диаметра (а) участком калибровки (2), через который проходит только что экструдированный тяж (8) пластмассы,d) с расположенным после участка калибровки (2) тормозным устройством (3), с помощью которого на тяж пластмассы (8) можно передавать переменное осевое усилие (А), противонаправленное продвижению тяжа,e) и с датчиком силы (9), который измеряет поданное тормозным устройством (3) на тяж пластмассы (8) осевое усилие (А),отличающаяся тем,f) что тормозное устройство (3) включает в себя тормозную колодку ...

ПРИБОРНАЯ ПАНЕЛЬ ТРАНСПОРТНОГО СРЕДСТВА (ВАРИАНТЫ) И СПОСОБ ФОРМИРОВАНИЯ КОМПОНЕНТА ТРАНСПОРТНОГО СРЕДСТВА

КОЛЬЦЕОБРАЗНЫЕ ИЛИ ТРУБЧАТЫЕ ФОРМОВАННЫЕ ИЗДЕЛИЯ ИЗ НОВЫХ ПОЛИМЕРНЫХ СМЕСЕЙ

... 1. Трубчатое промышленное изделие кольцеобразной или трубчатой формы, имеющее наружный диаметр, внутренний диаметр и длину, выполненное из одного или нескольких материалов, выбранных из группы, состоящей из a) несмешиваемой смеси полимеров, содержащей один или несколько полиэфиримидов, имеющих более одной температуры стеклования, где полиэфиримид имеет температуру стеклования более чем 217°С; b) смешиваемой смеси полимеров, содержащей один или несколько полиэфиримидов, имеющих единую температуру стеклования более чем 180°С; или с) отдельного полиэфиримида, имеющего температуру стеклования более чем 247°С. ! 2. Трубчатое промышленное изделие по п.1, в котором полиэфиримид имеет отношение атомов водорода к атомам углерода в пределах примерно между 0,4 и 0,85. ! 3. Трубчатое промышленное изделие по п.1, в котором полиэфиримид по существу не содержит бензильных протонов. ! 4. Трубчатое промышленное изделие по п.1, в котором наружный диаметр изделия является по существу одинаковым по всей длине ...

ПОЛАЯ ВОЛОКОННАЯ МЕМБРАНА, ВКЛЮЧАЮЩАЯ ПОЛИИМИД И ПРОЦЕСС ЕЕ ИЗГОТОВЛЕНИЯ

Изобретение касается асимметричных полых волоконных разделительных мембран на основе полимера полиимида. Мембраны получают сухо-мокрым формованием полого волокна из 15 - 25%-ного раствора высокополярного полимера полиимида с использованием осаждающего раствора в просветах.

Формующая головка для производства профилей из вспененных термопластов

Изобретение относится к области переработки пластмасс и может быть использовано в химической промьшшен- ности. Целью изобретения является повышение производительности головки и качества получаемых профилей за счет предотвращения вспенивания расплава термопласта внутри головки. Формующая головка содержит корпус с входной и выходной частями и выполненным в нем осевым подводящим каналом , установленную во входной части корпуса решетку с размещенными в ней рабочими элементами. Рабочие злемен- ты вьшолнены в виде осевой и рабочих торпед с входными и выходными частями , установленными соответственно по оси решетки и по ее окружности с образованием с решеткой и корпусом соответственно центрального и формующих каналов. Осевая торпеда установлена с возможностью ее перемещения для регулирования сечения центрального канала, а рабочие торпеды закреплены жестко с образованием в корпусе выходных каналов. В одном варианте выполнения выходная часть каждой рабочей торпеды имеет переменное сечение с расширением ...

VORRICHTUNG, PRODUKT UND VERWENDUNG BETREFFEND DIE INTRALUMINALE PHOTOTHERMOFORMGEBUNG

ZYLINDRISCHER KÖRPER UND SPRITZGIESSVERFAHREN ZUM FORMEN VON ZYLINDRISCHEN KÖRPERN

Cross-sectional structure for plastic tube with high flexural stiffness

An antenna (aerial) support made of plastic has a tube cross-section with especially high flexural stiffness but low shear resistance. The tube cross-section corresponds to a double-wall tube whose annular space formed between the outer tube and inner tube is bridged by webs (2) which extend along surface lines distributed around the tube circumference and are firmly joined to both tubes. A process for producing plastic tubes with a tube cross-section of this kind, the material consisting of polyester resin or epoxy resin with a reinforcing fibre insert of glass fibres or carbon fibres, comprises the following process steps: a) production of a thin, flat outer wall (1) which is still flexible in the completely cured state and whose maximum width corresponds to the circumference of the outer tube; b) attachment of already cured webs (2) onto a still-uncured inner layer of the outer wall (1) spread out on a flat substrate; c) production of the inner wall (3) on a core corresponding to the ...

Vorrichtung zur Durchflussmessung in Schlauch- und/oder Kunststoffrohrsystemen sowie Durchflussmessungsanordnung

Vorrichtung zum Einbau in ein Kunststoffschlauch- und/oder Kunststoffrohrsystem und Anbringen von Durchflussmessaufnehmern, aufweisend ein Durchflusskunststoffteil (1) als Hohlkörper mit einem mittig angeordneten und verformbaren Bereich (2) mit rechteckigem Querschnitt, wobei an der Außenfläche des mittig angeordneten Bereichs (2) zwei gegenüberliegende Sensorkontaktflächen (3, 4) und zwei gegenüberliegende Druckbereichsflächen (5, 6) angeordnet sind, und wobei zwei Anschlussbereiche (7, 8) zum Anschließen an Schläuche und/oder Kunststoffrohre den mittig angeordneten Bereich (2) flankieren.

Formkörper aus Harz und Verfahren zur Herstellung eines Formkörpers aus Harz

Eine Aufgabe der vorliegenden Erfindung ist es, eine Technik bereitzustellen, mit der, wenn ein Formkörper aus Harz unter Verwendung eines Einsatzstückes mit geringer Druckbeständigkeit hergestellt wird, Formen auf einfache Weise durchgeführt werden kann und Verformung des Einsatzstückes unterdrückt werden kann. Ein Verfahren zur Herstellung eines Formkörpers aus Harz der vorliegenden Erfindung, wobei das Verfahren die Schritte Anordnen eines Einsatzstückes in einen Hohlraum einer Form; Einspritzen eines geschmolzenen Harzes in den Hohlraum; Abschließen des Einspritzens zum Zeitpunkt, wenn und nachdem das geschmolzene Harz einen Überlaufbereich in dem Hohlraum erreicht und bevor das geschmolzene Harz den Überlaufbereich ausfüllt; und Abtrennen von Harz in dem Überlaufbereich umfasst.

Tubular or hollow moulded parts for tennis racquets, etc. - obtd. by heating network of thermoplastic and reinforcing fibres mixt. surrounding thin walled, extensible tube

The mfr. of tubular or hollow moulded parts comprises (i) forming a network of thermoplastic fibres and reinforcing fibres (hybrid yarn), the contours being those of the part; (ii) introducing a thin-walled, extensible tube in the network; (iii) inserting the structure in a multicomponent form; (iv) heating at a temp. above the melt temp. of the thermoplastic fibres to consolidate the part; and (v) cooling and demoulding. The tube is partly filled with a propellant contg. thermoplastic which, on heating, foams producing a pressure which compresses the yarn network. Pref. the thermoplastic fibre are of a polyamide. The thermoplastic contg. propellant is a polyamide polysulphone or polyether sulphone. The tube is of rubber modified polyamide or silicone rubber. USE/ADVANTAGE - Used for tennis racquet, golf clubs, baseball bats and tyre frames. Tubular parts of variable dia and hollow parts can be mfd. in the same way.

Method for injection molding of continuous fiber reinforced hollow body, involves fixing and positioning pre-consolidated or hardened hybrid braided tubes made of mixed continuous plastic fibers and interwoven glass fibers or carbon fibers

The method involves fixing and positioning pre-consolidated or hardened hybrid braided tubes made of mixed continuous plastic fibers and interwoven glass fibers, carbon fibers, kevlar fibers, textile fibers or natural fibers by injection molding tools, such that the continuous fiber tubes run- through from inside to outside of a plastic melt during the injection of the molten plastic in the T-preform. The T-preform is overflowed with plastic from inside of the plastic melt and a hollow space is produced by the fluid injection technique. An independent claim is also included for a manufacturing device for use in injection molding of continuous fiber reinforced hollow body.

Kunststoffschlauchschweißgerät

Die Erfindung bezieht sich auf ein Kunststoffschlauchschweißgerät mit einem Zangenteil, das zwei relativ zueinander bewegliche Zangenbacken zum Einlegen und Zusammendrücken eines Blutschlauchs aufweist, wobei die Zangenbacken Hochfrequenz(HF)-Elektroden (12a, 12b) beinhalten, und mit einem elektrischen HF-Energieversorgungsschaltkreis (8), der einen HF-Generator (10) und die HF-Elektroden der Zangenbacken umfasst. Die Erfindung kann zur Verwendung z. B. zum Verschweißen von Blutschläuchen bei Blutspendebeuteln eingesetzt werden.

Leichtgewichtiger Golfschlägerschaft und Verfahren zu dessen Herstellung

Cooling device for film in blown film system, has discharging unit discharging cooling fluid and exerting suction force on cooling force, and longitudinal distribution unit provided for distributing suction force on film

The device has feeding units feeding cooling fluid on a film, and a discharging unit discharging the cooling fluid. The discharging unit exerts suction force on cooling force. A longitudinal distribution unit is provided for distributing the suction force on the film, and is provided with a fluid outlet on the feeding units. The feeding units include a cooling ring, and a sealing unit is provided in a region between the feeding units. The discharging unit is operatively arranged on the feeding units, where distance between the feeding units is adjusted.

Modified tubular

An oil field tubular has a composite material housing within which is located one or more wireless communication devices. The housing is bonded to the tubular. In a disclosed method of installing a wireless communication device upon an oilfield tubular, a prefabricated composite shell formed with an inner skin 152 and outer skin 153 forming an inner space 154 for containing the wireless communication device. The communication device is embedded in either a foam layer or a resin-infused fibre mat and the shell is applied to a surface of the tubular so as to form a cavity between the surface of the tubular and the prefabricated composite shell. A bonding material is introduced to the cavity and bonding material is cured.

PROCESS AND APPARATUS FOR CONTROLLING DIMENSIONS IN PLASTICS EXTRUSIONS

... 1372501 Controlling thickness of foamed plastics extrusions OWENS-ILLINOIS Inc 3 Oct 1972 45551/72 Heading B5A [Also in Division G3] In the production of a foamed thermoplastics sheet, e.g. of polystyrene, by extrusion either from a flat sheet die or, as in the described embodiment, by extrusion of a tube 30 which is slit by knives 34 at diametrically opposed locations 31, uniformity of thickness of the sheet transversely of its direction of advancement from the die is obtained by measuring the thickness at a number of locations spaced transversely across the advancing sheet, and either manually or automatically raising or lowering the temperature of the die lips, in areas forming the regions of the sheet at which the thickness are measured, respectively to increase or decrease the thickness of the sheet at the locations. The temperatures are controlled by a plurality of independently controlled heating and/or cooling heat exchangers circumferentially spaced around at least one die lip, ...

IMPROVEMENTS IN OR RELATING TO REINFORCING FOAM SHEETS

... 1,260,615. Fibre-reinforced foam laminates; fibre reinforced extrudate. HASKON Inc. 29 April, 1970 [30 April, 1969], No. 20710/70. Headings B5A and B5N. A laminated sheet comprising exterior layers of foam with a layer of fibrous material laminated in the centre and suitable for use for a carpet backing is produced by forcing a molten foamable thermoplastic polymer composition through an annular die and allowing the composition to foam as a result of the pressure drop upon emerging from the die to form a foamed tube, depositing reinforcing fibrous material which has a melting point or decomposition point above the extrusion temperature of the polymer on the inside of the tube and collapsing and flattening the tube while the interior thereof is sufficiently warm to fuse the interior surface and form an integral laminated sheet. The fibrous material may be in the form of fibres, monofilaments, multifilaments or knit or woven scrim of cotton, jute, wool, asbestos, glass, viscose rayon, acetate ...

Improvements in tubular insulating jackets for pipes

... 1,128,177. Pipe insulators. GRUNZWEIG & HARTMANN A.G. 2 Feb., 1966 [3 Feb., 1965], No. 4529/66. Heading F2P. [Also in Division B5] A foamed plastics extruded tubular insulating jacket 5 for a pipe is provided with non-visible zones or planes of weakness 6 extending longitudinally of the jacket along which the jacket may be easily divided. Preferably, said zones or planes of weakness do not extend across the complete diameter of the jacket, the embodiment of Fig. 1b (not shown) illustrating zones 6 extending to different radial depths whereby peripheral thin and thick connecting edge portions 7 and 8 respectively are defined, the thick portion forming a hinge on division of the jacket along the zones of weakness and fracture of the thin edge portion. Further embodiments, Figs. 1c, 1d and 1e (not shown), illustrate zones which are of stepped, V-shaped, or staggered configuration in cross-section. The jacket is formed by extrusion through the mouthpiece of a screw extruder, Fig. 2, blades ...

LAMINATED STRUCTURAL PRODUCTS OF GLASS FIBRE REINFORCED POLYESTER

... 1400834 Junction-pieces; tubes NITROKEMIA IPARTELEPEK 22 May 1972 23895/72 Headings F2G and F2P [Also in Division B5] A structural element comprises spaced apart polyester-impregnated glass fibre panels between which there is a prestressed insert of a metal wire coil or a braid of coiled metal wire, adjacent surface of the coil or braid and the panels being rigidly bonded by polyester resin. As shown a braid 1 is bonded to glass cloths 2 and glass mats 3 by the impregnant polyester 4, and is formed to enable fluid-flow channel-forming members to be inserted into the space between the panels. In a further embodiment (Fig. 3, not shown), a plurality of coils are disposed side-by-side between the panels and a layer of glass cloth impregnated with polyester partially surrounds and is bonded to each coil by being passed over one coil and under the adjacent coils. In a modification (Fig. 2, not shown) the two panels of Fig. 1 are replaced by a tubular glass fibre-polyester layer, which is rigidly ...

Method of joining fibre glass and aluminium components

A method of joining fibreglass and aluminium components comprises engaging the sealed end 9 of a tube 8 in a socket 5 sealed in a further tube 1, injecting a setting medium (eg. epoxy resin) into the socket 5 and applying pressure to medium to effect its distribution. The pressure may be applied by the introduction of the sealed end 9 into the socket 5. The socket 5 comprises an annulus with flared ends. ...

Treatment of rod-like articles

A machine for treating rod-like articles, e.g. for wrapping paint roller core tubes with a pile fabric, wherein first and second carriages (14, 16) are employed to drive a line of core tubes in end-to-end abutting relationship through a wrapping station (24), with the first carriage (14) pushing the trailing end of the last tube of the line and the second carriage (16) pulling the first tube of the line. At appropriate times at which the respective carriages are clamped to and unclamped from fast and slow moving chains (18), the first carriage is retracted from the back of the line to enable insertion of a fresh tube and the second carriage is advanced to withdraw a treated tube from the front of the line and enable its ejection. ...

Golf club shafts and methods of making them

ULTRAFINE TUBE & METHOD FOR ITS PRODUCTION

A hollow multilayered plastics member and a method of forming same

A hollow plastics member (1) is formed by injection moulding a plastics resin around a hollow inner member (2). The inner member (2) is formed by moulding two kinds of plastics into a two-layer structure including an inside (2a) and an outside (2b) layer. The inside layer (2a) may be formed from polyether or polyphenylene sulfide, and the outside layer (2b) from 30% glass reinforced nylon resin. The outermost layer may be 45% glass reinforced nylon. A core (3) of sand may be used to avoid deformation during the injection moulding. The inner member may be blow-moulded, and the whole member may be used as an intake pipe in an automobile engine. ...

Method of manufacture of a plastics construction product and plastics construction product

Improvements in or relating to the manufacture of tubing

... 897,940. Making pipes. CARTWRIGHT, W. L. March 3, 1961 [March 8, 1960], No. 8109/60. Class 99(2). In a method of manufacturing fibre reinforced resin tubing, resin impregnated fibres 1 are drawn longitudinally over a mandrel 10 and further resin impregnated fibres 13 are helically wound on top of the fibres 1, the motive force for drawing the fibres along the mandrel and through a curing oven being applied mainly through the longitudinal fibres. As shown, glass fibre rovings 1 are led through a resin bath 2, passed through a thermostatically controlled pre-heating chamber 6 and by means of guide plates 7 and 8 and a temperature controlled die 9 the rovings move longitudinally along a mandrel 10 supported on plates 7 and 8. The die 9 and the mandrel 10 may have a P.T.F.E. liner 11. The rovings are finally cured in a muffle seating chamber 12 and the tube 16 so formed is helically wrapped with resin impregnated glass rovings 13 by means of a rotating disc 13. The built up tubing is then wrapped ...

Composite structure manufactured using modular moulds

A composite structure such as a containment case 2 is manufactured with an inwardly projecting flange 93, 94 by using modular moulds 81, 82 so that the composite material of the containment case may be machine laid including machine laying the inwardly projecting flange 93, 94. A method of manufacturing the structure comprises providing a first mould 6 having an annular outer peripheral surface and a first annular end 72 and laying up a composite material 71 over the outer surface to form a first part of the housing with a first inwardly projecting flange; positioning a second mould 63 with an annular outer peripheral surface adjacent the first inwardly projecting flange and laying up composite material 73 on the outer peripheral surface and on the first part of the housing to form a second part of the housing; curing the composite material and removing the moulds from the co-cured structure. Alternatively the first inwardly projecting flange may be laid up in two parts provided on the ...

Linings for sewers

Composite structure

Proof positive plastic pipe marking and embossing system

Mass manufacture of long tube assembly via magnectic levitation

Method and mould assembly for rotation moulding a pipe part with a spigot end, as well as pipe part obtained therewith

Method and mould assembly for rotation moulding a pipe part with a spigot end, as well as pipe part obtained therewith.

Plastic drain or inspection chamber portion with hollow-walled circumferential wall, as well as mould assembly for thereof.

Apparatus for installation of pipes.

Rigid mould for the moulding and the vulcanization of the tires.

Method and mould assembly for rotation moulding a pipe part with a spigot end, as well as pipe part obtained therewith.

Method and mould assembly for rotation moulding a pipe part with a spigot end, as well as pipe part obtained therewith.

Plastic drain or inspection chamber portion with hollow-walled circumferential wall, as well as mould assembly for thereof.

PROCEDURE FOR THE PRODUCTION FROM ROLLERS TO DECORATING OBJECTS

PLASTIC TUBE AND PROCEDURE FOR ITS AGO POSITION

PROCEDURE FOR THE TREATMENT OF A SCHLAUCHFOERMIGEN NET FROM PLASTIC MATERIAL AS WELL AS MECHANISM FOR THE EXECUTION OF THE PROCEDURE

Procedure for the continuous production of endless, helically curved Kunststoffschäuchen and/or - intestines

USE FROM SALT CORES FOR PLASTIC CASTING AND PROCEDURES TO THE PRODUCTION OF PLASTIC HOLLOW MOLDED ARTICLES

EXTRUDING HEAD

COLD ISO PRESSING

METHOD AND APPARATUS FOR THE PRODUCTION OF FORMED FILTERELEMENTE

PROCEDURE FOR THE PRODUCTION OF A CYLINDRIC FLEXIBLE BODY

VORRICHTUNG ZUR HERSTELLUNG VON MATERIALBAHNEN BZW. FOLIEN AUS SCHAEUMBAREM THERMOPLASTISCHEM KUNSTSTOFF

FORMWERKZEUG ZUM PRESSEN EINES FORMKÖRPERS AUS EINEM SINTERPULVER

VULKANISIERFORM ZUR HERSTELLUNG VON RINGFOERMIGEN POLYMEREN ERZEUGNISSEN, INSBESONDERE VON ZAHNRIEMEN

PROCEDURE FOR THE PRODUCTION OF A FLEXIBLE ENDOSCOPE TUBE

EXTRUSION PRESS FOR THE PRODUCTION OF HOLLOW SECTIONS

DEVICE TO THE PRODUCTION OF MATERIALBAHNEN AND/OR FOILS FROM FOAM-CASH THERMOPLASTIC PLASTIC

VORRICHTUNG UND VERFAHREN ZUM FÜHREN UND/ODER FORMEN EINES KUNSTSTOFFSTRANGES

The device has an area with variable cross-section and a unit for changing the variable cross-sectional area. The area is formed from coiled flat materials. The flat materials are coiled in a funnel-shaped manner and the funnel tapers in the extrusion direction (6). The funnel-shaped coiled flat materials are arranged at a distance to each other in series and are stacked into one another. A minimum distance between the funnel-shaped coiled flat materials is ensured by a spacer ring. An independent claim is also included for a method for adjusting the plastic strand or plastic profile guiding or forming device.

FORMING TOOL FOR PRESSING A MOLDED ARTICLE FROM A SINTER POWDER

VERFAHREN ZUM VORWÄRMEN EINER ANFAHRHILFE

Die Erfindung betrifft ein Verfahren zur Vorwärmung von Anfahrhilfen bei der Extrusion mit Hilfe von externen Energiequellen.Durch die Energieeinbringung mit Heizdecken, Heizbändern, Strahlern, Gebläse oder auch Beflammung, ist es möglich die Aufheizzeit zu verkürzen und weniger arbeitsintensiv zu gestalten und somit einen rascheren Produktionsstart zu ermöglichen.

DEVICE FOR COMPENSATING THE AXIAL DEFORMATION IN A ISO-STATIC PRESS.

PRODUCTION TO AN EXTENT CELEBRATIONS, FLEXIBLE PIPE FOR AN OPTICAL CABLE.

MACHINE TO THE PRODUCTION OF VULCANIZED RUBBER HOSE.

PROCEDURE FOR THE MITRE WELDING OF PROFILES FROM PLASTIC.

PRODUCTION OF METALLKARBID KOERPERN.

PROCEDURE FOR THE PRODUCTION A PVC OF AN IRRIGATION PIPE.

PROCEDURE FOR THE PRODUCTION OF HOLLOW BODY FROM COMPOSITE MATERIAL BY KONTAKTWICKLEN ON A EXPAND-CASH FORM AND THEREBY MANUFACTURED BODIES

PROCEDURE AND DEVICE FOR THE PRODUCTION FROM TUBES TO DROP WAYS THE IRRIGATION

Gummiüberzug as Verschleißschutz for conveyor carrying and Unterbandrollen

INTERMEDIATE PRODUCT FROM PET.

CASTING TOOL WITH NUCLEAR COURSE AND MANUFACTURING PROCESS FOR A SUCTION TUBE AND SUCTION TUBE WITH A BY A NUCLEAR COURSE PRODUCIBLE CAVITY

EXTRUDING DEVICE AND PROCEDURE FOR ORIENTING PLASTIC MATERIAL BY USE OF A EXTRUSIIONSVORRICHTUNG

Procedure for the treatment of wall surfaces of recesses in workpieces by means of energy beams

Endotracheal tubes

Method for manufacturing elastic cylindrical body, method for manufacturing elastic roll, elastic cylindrical body, and elastic roll

Flexible grip and method of making same

Weather strip and method of manufacturing same

Cellular reservoir flexible pressure vessel, apparatus and method for making same

Cold isopressing method

Multi-layer heat shrinkable tubular sleeve

A multi- layer heat - shrinkable tubular sleeve (100) comprises an outer layer (110) and an inner layer (120). The outer layer (110) is arranged around the inner layer (120). The outer layer (110) comprises a partially crystalline thermoplastic material with a major part of partially crystalline thermoplastic material with a crystallinity of more than 60%. The inner layer (120) comprises a partially crystalline thermoplastic material or an elastomeric material.

A method of producing an assembly for use in a fibre reinforced structural element

The present invention relates generally to the technique of producing large fibre reinforced structural elements (208) and in particular a technique of fixating bolt fixtures or bolts (10) in the fibre reinforced structural element.

SHEET FOR FORMING SLEEVE AND PROCESS

Method for making thin-walled, closed-ended, tubular articles of thermoplastic elastomers

AN APPARATUS FOR CURING INSULATING CHUTES

Heat setting of medical tubings

Pipe couplings

FABRIC COVERED METAL RAIL AND METHOD FOR PRODUCING SAME

A DEVICE MANUFACTURING ARTICLES OF COMPACTED POWDER

PROCESS FOR THE PREPARATION OF BLOWN FILM AND ORIENTED FILM

COMPOSITE HANDLE

An elongated composite element (10) includes an elongated form comprising a flexible material (12) and having a plurality of holes (18) or a plurality of indentations (114a) or the like established thereat, and a core material (14) that either (a) substantially fills an interior cavity of an elongated tubular form and that protrudes at least partially through the holes established in the elongated tubular form, or (b) is disposed along and over a plurality of elongated members and is at least partially received in indentations to adhere the core material to the plurality of elongated wire members. An outer layer (16) may substantially encase the elongated form and the core material to provide an outer surface of the composite tubular element. The elongated composite element may include strengthening elements and the polymeric core portion may be disposed along and over the plurality of strengthening elements.

METHOD FOR PRODUCING A MOLDED PART, AND A MOLDED PART THUS PRODUCED

The invention relates to a molded part for accommodating, conducting, or storing a fluid, having a hollow body delimited by a wall lining, and at least one device for feeding fluids to the hollow body, and/or discharging fluids therefrom. The molded part is characterized in that the wall lining contains cross-linked polyethylene.

METHOD AND APPARATUS FOR THE COOLING OF A TUBULAR EXTRUDATE OF EXPANDED POLYSTYRENE

A surface treating device to be attached to the upstream end of a cooling and sizing mandrel used in the manufacture of a web of expanded polystyrene of a general purpose grade from a warm, tubular extrudate of such material, such treating device serving to prepare the dense, radially innermost surface of such tubular extrudate so that it can be drawn over the cooled, cooling and sizing mandrel in tight, surface to surface contact therewith to substantially reduce the amount of material from the web which accumulates on the cooling and sizing mandrel.

Particle Embedded Polymer Stent and Method of Manufacture

A particle embedded polymer stent and method of manufacture, which includes a stent delivery system having a catheter; a balloon operably attached to the catheter; and a polymer stent disposed on the balloon, the stent comprising struts interconnected to form a tubular body. Each of the struts includes in cross section a drug-free core region; and a drug region surrounding and immediately adjacent to the core region, the drug region including drug particles. The drug-free core region and the drug region are made of a single polymer, the single polymer having a drug-safe softening temperature.

Viscoelastic Extrusion Processing Method and Compositions for Biopolymers

A viscoelastic extrusion process (VEEP) for biopolymers such as polylactic acid is provided. The VEEP process removes many processing and performance limitations of PLA as well as creates performance sufficient to produce durable “nonbiodegradable” products as a direct replacement for PVC and other petrochemical profile and sheet extrusion applications. The VEEP process also retains a high degree of crystallinity within the PLA for increasing toughness and to lower its biodegradability. The invention also includes an integral process wherein rheology is highly modified to allow profile extrusion and higher melt strength wherein processing is lower than the melting point of the primary biopolymer and below the browning points of the natural fibers in the biopolymers viscoelastic state.

Therapeutic, fitness, and sports enhancement device

A therapeutic, fitness, and sports enhancement device which includes a cylindrically shaped body having a predetermined density and predetermined diameter, the body including a plurality of projections of a predetermined shape. One or more of the predetermined density and the predetermined diameter in combination with the predetermined shape of the projections optimize mobilization of soft tissue structures of the human body.

Method for connecting, as well as a connection, of a capillary tube to a main tube

The invention relates to a method for connecting the open end of a thin-walled plastic tube having an outside diameter of up to 3 mm (capillary tube) to a main tube made of plastic and having a considerably larger diameter, such that the capillary tube projects radially from the circumferential surface of the main tube, and the interior of the capillary tube is connected to the interior of the main tube by way of a radial passage configured in the wall of the main tube. One end of the capillary tube, which has an outside diameter that equals or is smaller than the diameter of the passage, is at least partially inserted into the passage from the outside, and at least part of the inserted end of the capillary tube and the immediately surrounding part of the wall of the passage in the main tube are subsequently heated in common. Said parts are thus softened such that they are fused to one another after cooling. The heating preferably takes place by inserting a heated punch into the passage from the inside of the main tube.

Method for manufacturing hollow composite structure

The present invention provides a method for manufacturing a hollow composite structure by forming a prepreg product using a plurality of prepregs, forming a soft coating layer on an inner surface of the prepreg product, and compressing the prepreg product by applying pressurized air to the coating layer and, at the same time, applying heat to the prepregs.

Medical balloon having improved stability and strength

A medical device, the medical device formed at least in part from a melt blend of at least one polymer comprising hydrolysable groups and a carbodiimide.

Deformed porous hollow fiber membrane, production method of deformed porous hollow fiber membrane, and module, filtration device, and water treatment method in which deformed porous hollow fiber membrane is used

A porous hollow fiber membrane that is suitable for treatment of liquid containing an inorganic substance and/or an organic substance, is obtained at a low cost performance, and has high water permeability performance, fretting resistance, and drying resistance. A deformed porous hollow fiber membrane according to the present invention is composed of a thermoplastic resin and includes a continuous asperity provided on the periphery in the longitudinal direction of the membrane, in which the periphery of the hollow fiber membrane in the circumferential direction includes continuous projected and depressed parts.

Method for making grooves on a luminal surface of an intravascular stent

The invention relates to methods and apparatus for manufacturing intravascular stents wherein the intravascular stent has its inner surface treated to promote the migration of endothelial cells onto the inner surface of the intravascular stent. In particular, the inner surface of the intravascular stent has at least one groove formed therein.

Hockey stick

A hockey stick shaft includes an elongate, rectangular tube having a length and a plurality of side walls. The plurality of side walls define an elongate inner chamber of the tube. The chamber extends along the length of the tube. The plurality of side walls includes a first side wall, a second side wall opposite the first side wall, and a pair of opposite third and fourth side walls separating the first side wall from the second side wall. A support member is positioned within the chamber and extends along the length of the tube. The support member divides the chamber, and connects the first and second side wall walls to one another.

Tubular molded foam with plate portion

Provided is a tubular molded foam with a plate portion capable of reliably preventing the occurrence of an unwanted lump on the inside of a tube body even when the molding is manufactured using a molten resin having a high expansion ratio. The tubular molded foam includes a tube body and a plate portion joined with an outside of the tube body. The plate portion has a recess in the vicinity of a joint surface with the tube body.

Multilayer tube having a tubular inner film, device and method for producing same, and use thereof

The invention relates to a multilayer tube, comprising a tubular inner film made of modified polytetrafluoroethylene, and one or more layers of a planar textile fibrous material, which is saturated with a curable resin, and optionally an outer film. The outer film is preferably made of UV impermeable material. The multilayer tube can be used for repairing pipes, but it can also be used as a stand-alone pipe for transporting fluids such as liquids and gases.

Method for attaching thin cylindrical element to mold core, process for producing cylindrical container, and mold core

The method for attacking a thin cylindrical element to a mold core is a method for attaching a film-like thin cylindrical element, which is formed in a cylindrical shape having a constant cross-sectional shape, to an outer surface of a mold core in a manner so as to cover the mold core. The method includes pressing the thin cylindrical element onto a tip portion of the mold core; guiding the thin cylindrical element to the base end side of the mold core while ejecting gas into between the mold core and the thin cylindrical element; and attaching the thin cylindrical element to the outer surface of the mold core in a manner so as to cover the mold core.

Substantially rigid collapsible liner, container and/or liner for replacing glass bottles, and enhanced flexible liners

The present disclosure relates to a blow-molded, rigid collapsible liner that can be suitable particularly for smaller storage and dispensing systems. The rigid collapsible liner may be a stand-alone liner, e.g., used without an outer container, and may be dispensed from a fixed pressure dispensing can. Folds in the rigid collapsible liner may be substantially eliminated, thereby substantially reducing or eliminating the problems associated with pinholes, weld tears, and overflow. The present disclosure also relates to systems and liners, including the liners just mentioned, that may be used as alternatives to, or replacements for, simple rigid-wall containers, such as those made of glass. Such advantageous systems and liners may replace simple rigid-wall containers in a system for delivering a high purity material to a semiconductor process substantially without modification to an end user's existing pump dispense or pressure dispense systems.

Composite Pipe

A pipe comprises a pipe wall formed of a composite material of a matrix and a plurality of reinforcing fibres embedded within the matrix, wherein the composite material in at least one region of the pipe wall is pre-stressed. The composite material in at least one region of the pipe wall comprises or defines at least one of a level of pre-tension and pre-compression.

Steroid eluting collar undermold

Methods of manufacturing implantable medical devices with one or more undermolded features are disclosed. An example method includes injection molding an annular-shaped member onto an inner surface of a sacrificial mold insert, and then undermolding an elongate medical device body directly to the member. The member is directly coupled to the device body without the use of adhesives or bonding agents, thus eliminating the presence of gaps or surface irregularities that can affect device performance.

Flexible packaging manufactured by welding and containing a material that is recycled or from renewable resources

The invention relates to an essentially tubular flexible packaging intended for containing a semi-liquid or pasty product, which includes an apron, a head, an added piece of material at least on the inside of the apron, and optionally a lid, the apron consisting of a rolled-up sheet and comprising a longitudinal weld for assembling the edges thereof together, and the head being attached to the edge of one of the ends of the apron. The apron includes a ratio of at least 30% of recycled material or material from renewable resources, and the added piece of material is arranged so as to eliminate a discontinuity in the inner surface in the area of the longitudinal weld.

Blow-molded foam and process for producing the same

An object of the invention is to provide a blow-molded foam which has homogeneous foamed cells in size, is light in weight, and is excellent in surface smoothness, and a process for producing the same. The invention is directed to a blow-molded foam 1 having a wall portion formed in such a manner that a thermoplastic resin containing a foaming agent mixed therewith is subjected to blow molding. Herein, the wall portion has a closed cell structure in which a plurality of foamed cells are contained. The wall portion has an expansion ratio of not less than 2.0 times. The wall portion has an outer face having a center-line average surface roughness Ra of less than 9.0 μm. The foamed cell has a cell diameter having a standard deviation of less than 40 μm in a thickness direction of the wall portion.

Apparatus, systems and methods for medical device expansion

A system and method for manufacturing a medical device. The system can include a thermal chamber and an expander at least partially positioned within the thermal chamber. The expander can be configured to uniformly expand a medical device as the medical device is advanced over the heated expander and heat set the expanded medical device while the medical device is positioned on the heated expander. The method can include forming a medical device from a tube having a first diameter; uniformly expanding the medical device from the first diameter to a second diameter at which the medical device can be left within a body vessel, the medical device being expanded from the first diameter to the second diameter while being continuously positioned on an expander; and heat setting the expanded medical device at the second diameter while the medical device is positioned on the expander.

Producing foams having improved properties

The present invention relates to a composition for producing a rigid polyurethane foam comprising at least one polyol having a molecular weight of not less than 1700 g/mol and at least one blowing agent as component A, and at least one polyisocyanate as component B, wherein the at least one polyisocyanate B comprises from 11 to 39.5 wt % of a polyisocyanate prepolymer, based on a polyether polyol having an OH number of at least 100 mg KOH/g, to a rigid polyurethane foam obtainable by reacting this composition, to a process for producing such a rigid polyurethane foam, to the use of such a rigid polyurethane foam for insulation, especially for pipe insulation and also to a process for producing an insulated pipe.

Composite waste and water transport elements and methods of manufacture for use on aircraft

Embodiments of the present invention provide composite waste and water transport elements that can be designed having various unique shapes and methods for their manufacture.

Heat curable composite textile

A heat curable, circular knitted fabric includes reinforcing and meltable resin fibers that can be cured to form a more rigid material form. In one embodiment, the fabric includes a core spun yarn, wherein the core may be made from glass, carbon, basalt, aramid or metal. The wrap surrounding the core may include resin type fibers such as Poly(p-phenylene sulfide) PPS, Polyetherimide (PEI), Polyether ether ketone (PEEK), Polysulfone (PES), Polyphthalamide (PPA), nylon, polyester, or polypropylene.

CLOSURE MODULE AND METHOD FOR CLOSING AND/OR SEPARATING FILLED SAUSAGE CASINGS CONNECTED VIA A SAUSAGE NECK

A closure module and a method for closing and/or separating filled sausage casings connected via a sausage neck, comprising two stamps movable relative to and towards each other and arranged such that a sausage neck can be placed therebetween, the stamps being capable of clamping the sausage neck in a closed condition, and further comprising a first and a second electrode, through which, in a closed condition of the stamps, a current can flow from the first electrode into the sausage neck and via the sausage neck into the second electrode. 1. A closure module for closing and/or separating filled sausage casings connected via a sausage neck , comprising:two stamps movable relative to and towards each other and arranged such that a sausage neck is placed therebetween, the stamps capable of clamping the sausage neck in a closed condition, and further comprising a first electrode and a second electrode, through which, in a closed condition of the stamps, a current flows from the first electrode into the sausage neck and via the sausage neck into the second electrode.2. The closure module according to claim 1 , wherein the first electrode and the second electrode are arranged such that claim 1 , in the closed condition of the stamps claim 1 , the first electrode and the second electrode are spaced apart from rounded sausage ends of the filled sausage casings such that the electrodes do not contact the filled sausage casings claim 1 , the electrode sides facing outwards having in particular provided thereon an insulating material.3. The closure module according to claim 1 , wherein a clamping point of the stamps is arranged on at least a respective side of the first electrode and the second electrode facing a rounded sausage end of the sausage neck.4. The closure module according to claim 3 , wherein both of the first electrode and the second electrode are arranged in one of the stamps in spaced relationship with each other claim 3 , or wherein the first electrode is ...

PRE-FILLED DRINKING STRAW WITH A CROSS-SLIT VALVE CLOSURE ON BOTH ENDS

The invention is characterized in that the straw body () is consisting of two or more segments, which are attached together with connection () and that the straw body () on its both ends has a cross-slit valve () closure and the valves () and the straw body () are integrated by molecular adhesion. The inlet and outlet valves () are of a slit type. The straw body () is preferably made of a thermoplastic material and the valves () are preferably made of elastomer material. The edge of the straw body () is shaped to enable larger surface of the connection between the straw body () and the valve (). The said shape is preferably a groove (). On the wall on the end of the straw body () a tongue-shaped groove () is formed on the surface side. 115123231. A pre-filled straw with a cross-slit valve to be used for oral administration of any liquid soluble ingredients , preferably granules , preferably for oral drug administration , characterized in that a straw body () consists of two or more segments , which are attached together with a connection () and that the straw body () on its both ends has a cross-slit valve ( , ) closure and the valves ( , ) and the straw body () are integrated by molecular adhesion.2272. The straw according to claim 1 , characterized in that the inlet valve () is of a slit type and a membrane () of the inlet valve () is of the concave form.33103. The straw according to claim 1 , characterized in that the outlet valve () is of a slit type and a membrane () of the outlet valve () is of the convex form.4123. The straw according to claim 1 , characterized in that the straw body () is preferably made of a thermoplastic material and the valves ( claim 1 , ) are preferably made of elastomer material.51123. The straw according to claim 1 , characterized in that the edge of the straw body () is shaped to enable larger surface of the connection between the straw body () and valve ( claim 1 , ).68. The straw according to claim 5 , characterized in that the ...

Building drainage stack, forming mould thereof and forming method thereof

The invention discloses a building drainage riser, its forming mold and forming method. The riser comprises a riser body and at least one spiral blade. The spiral blade is in a spiral direction on the inner wall of the riser body, and the spiral blade is fixedly connected to the inner wall of the riser body through its bottom side; the inner side of the radial section of the spiral blade presents the first normal distribution curve and the first normal distribution The abscissa axis of the curve is located on a chord of the inner wall of the riser body, and the distance from the chord to the center of the riser body is greater than half of the inner diameter of the riser body and less than the inner diameter of the riser body. The inner wall of the building drainage riser is provided with a spiral inner reinforcement with a radial section inside the first normal distribution curve, which completely eliminates the sharp tip and the sharp joint between the top and the inner wall of the building drainage riser, reduces the pressure fluctuation in the pipe during drainage and reduces the falling water flow speed. In addition, the molding die and forming method have the advantages of simple structure and low cost.

Plastic bags, rolls of plastic bags, and tubular blown film processes of making the same

A process of manufacturing a roll of plastic bags. The process includes forming a tubular blown film, and collapsing the tubular blown film so that the tubular blown film includes a first side, a second side, a first edge, and a second edge. Openings are cut in the collapsed tubular blown film, and sealing closure mechanisms are inserted through the openings into the collapsed tubular blown film. The sealing closure mechanisms are then fixed to the collapsed tubular blown film.

Joining structure

A joining structure includes a first member, a second member of a material different from that of the first member, and a separation mechanism provided between the first member and the second member and that separates the first member and the second member from each other, wherein a resin is filled into the space between the edge of at least one member among the first member and the second member, and the other member.

BLOWING HEAD, METHOD FOR PRODUCING A BLOWN FILM AND BLOWN FILM INSTALLATION

A blowing head, a method for producing a blown film, and a blown film installation include the use of plate spiral distributors in blown film installations for distributing melt steams arriving from extruders and for combining the melt streams to form an annular gap stream in several layers in an annular gap leading to a tubular die. The melt streams in a plate spiral distributor are initially bundled and then forwarded in a bundled manner to a common co-extrusion flow. The distributer has a plurality of spirals in superimposed layers, and the spirals of two layers have a junction for pre-combining the melt streams of two layers, and in that starting from the junction, a common guide leading to the annular gap is provided for combining there the pre-combined melt streams with the annular gap stream. 1. A blowing head for a blown-film plant , with a plate spiral distributor for distributing melt streams arriving from extruders and for combining the melt streams to form an annular gap stream in a plurality of layers in an annular gap leading to a tubular die , the plate spiral distributor having a plurality of spirals in superimposed layers , wherein the spirals of two layers have a junction for pre-combining the melt streams of two layers , and in that starting from the junction , a common guide leading to the annular gap is provided for combining the pre-combined melt streams with the annular gap stream.2. The blowing head according to claim 1 , wherein the spirals of two adjacent layers have a junction.3. The blowing head according to claim 1 , wherein the spirals of three layers have a junction.4. The blowing head according to claim 1 , further including a plurality of junctions having successive inputs to the annular gap.5. The blowing head according to claim 1 , wherein a plate has one spiral on a top side and one spiral on a bottom side.6. The blowing head according to claim 5 , wherein a plurality of plates have spirals on top sides and on the bottom sides.7. ...

Collapsible tool structure for small form implementation

An embodiment of a device is described. The device may include a body. The body includes an outer surface and an inner surface defining a bore within the body. The inner surface defines a maximum inner dimension of the bore no more than 10 millimeters. The bore has a longitudinal axis therethrough. The device may include a plurality of parting lines on the inner surface of the body. The device may include a recess in the inner surface of the body. The recess may be a housed recess and may have a depth in a lateral direction perpendicular to the longitudinal axis of the bore.

METHOD FOR FORMING CYLINDRICAL RUBBER MEMBER

A method for forming a cylindrical rubber member includes bringing a die close to a forming drum forming a winding start portion S by extruding a rubber S and simultaneously starting to rotate the forming drum to gradually increase an extruding amount to an amount Q and gradually increase a distance between the die and the forming drum to a distance D corresponding to a desired thickness of the cylindrical rubber member, winding the rubber S by maintaining the extruding amount at the amount Q and maintaining the distance between the die and the forming drum at the distance D and forming a winding end portion S on the winding start portion S by maintaining the distance between the die and the forming drum at the distance D and gradually reducing the extruding amount from the amount Q 1. A method for forming a cylindrical rubber member in which rubber extruded by an extruder through a die is wound around a rotation-supporting body , and a winding start portion and a winding end portion are bonded to each other to form a cylindrical shape , the method comprising:a preparation step of bringing the die close to the rotation-supporting body;a winding start step of forming a winding start portion having a wedge-shaped cross section by starting to extrude the rubber from the die which is brought close to the rotation-supporting body and simultaneously starting to rotate the rotation-supporting body to gradually increase an extruding amount of the rubber to a predetermined amount and gradually increase a distance between the die and the rotation-supporting body to a predetermined distance corresponding to a desired thickness of the cylindrical rubber member;a winding step of winding the rubber by maintaining the extruding amount of the rubber at the predetermined amount, and maintaining the distance between the die and the rotation-supporting body at the predetermined distance; anda winding end step of forming a winding end portion having a wedge-shaped cross section on the ...

CONDUIT RESONATOR

A method for making a substantially tube-shaped conduit resonator having a plurality of plastic component parts, the conduit resonator having a tubular hollow body and at least one tubular molded part arranged inside the tubular hollow body and connected to the tubular hollow body, the method comprising the steps of: making a molded part via an injection molding process in an outer tool having an inner mandrel; injecting the hollow body between the molded part and a surrounding outer tool wherein the molded part along with the inner mandrel serve as an inner tool; and, thereafter, via a blow molding process, seating the hollow body on the inner wall of the outer tool and reshaping the hollow body on the outer wall of the molded part and bonding the hollow body, in part, to the outer wall of the molded part. 1. A method for making a substantially tube-shaped conduit resonator having a plurality of plastic component parts , the conduit resonator having a tubular hollow body and at least one tubular molded part arranged inside the tubular hollow body and connected to the tubular hollow body , the method comprising the steps of:making a molded part via an injection molding process in an outer tool having an inner mandrel;injecting the hollow body between the molded part and a surrounding outer tool wherein the molded part along with the inner mandrel serve as an inner tool; and,thereafter, via a blow molding process, seating the hollow body on the inner wall of the outer tool and reshaping the hollow body on the outer wall of the molded part and bonding the hollow body, in part, to the outer wall of the molded part.2. The method of claim 1 , wherein at least two conduit resonators having respective molded parts and respective hollow bodies bonded to corresponding ones of the molded parts are produced in a single procedure. This application is a continuation application of international patent application PCT/EP2014/053681, filed Feb. 26, 2014, designating the United ...

CONNECTOR AND TUBING ASSEMBLY AND METHOD OF MOLDING CONNECTOR AND TUBING ASSEMBLY

An overmolding method for forming joints in a fluid-flow apparatus utilizes a connector or fitting as a component for mold forming. The connector or fitting is not removed after the overmolding and thus forms part of the joint assembly. 1. A method of molding a connector and tubing assembly comprising:providing a connector member including a plurality of ends with respective openings that communicate with one another via a lumen of said connector member, said connector member having one or more projections extending outwardly from an outer surface;inserting at least one of said ends into a terminal portion of a respective tube;molding a layer of thermoplastic or polymeric material about at least a portion of said connector member and about said terminal portion; andduring the molding of said thermoplastic or polymeric material melting at least a portion of each of said one or more projections into the thermoplastic or polymeric material to enhance bonding of said connector member to said layer of thermoplastic or polymeric material.2. The method defined in wherein the molding of the layer of thermoplastic or polymeric material about said connector member and about said terminal portion includes applying said thermoplastic or polymeric material in separate aliquots to a plurality of terminal portions of respective tubes to form a plurality of spaced over-molded sleeves.3. A method of molding a connector and tubing assembly comprising:providing a connector member including a plurality of ends with respective openings that communicate with one another through a lumen of said connector member, said connector member being formed at at least one of said ends with a projecting structure extending radially outwardly from an outer surface of said connector member;providing at least one tube having a terminal portion with a profiled inner surface having a recess configured to receive or seat the projecting structure of said at least one of said ends;inserting said, at least ...

COMPOSITE HOLLOW FIBER MEMBRANES USEFUL FOR CO2 REMOVAL FROM NATURAL GAS

Disclosed herein is a composite hollow fiber polymer membrane including a porous core layer and a selective sheath layer. The porous core layer includes a polyamide-imide polymer, or a polyetherimide polymer, and the selective sheath layer includes a polyimide polymer, which is prepared from monomers A, B, and C. The monomer A is a dianhydride of the formula 2. The composite hollow fiber polymer membrane according to claim 1 , wherein the polyamide-imide polymer and the polyimide polymer form a homogeneous blend.3. The composite hollow fiber polymer membrane according to claim 1 , wherein A is 4 claim 1 ,4′-(hexafluoroisopropylidene)diphthalic anhydride (6FDA).4. The composite hollow fiber polymer membrane according to claim 1 , wherein B is 2 claim 1 ,4 claim 1 ,6-trimethyl-m-phenylenediamine (DAM).5. The composite hollow fiber polymer membrane according to claim 1 , wherein C is 3 claim 1 ,5-diaminobenzoic acid (DABA).6. The composite hollow fiber polymer membrane according to claim 1 , wherein A is 6FDA claim 1 , B is DAM claim 1 , and C is DABA.8. The composite hollow fiber polymer membrane according to claim 1 , wherein the membrane is a dual layer hollow fiber membrane having a selective outer layer comprising about 1/10by volume of the polyimide polymer that would be employed in a dual layer hollow fiber membrane comprising both a porous substructure layer and selective outer layer made of polyimide polymer.9. The composite hollow fiber polymer membrane according to claim 1 , wherein the polyamide-imide polymer of the core layer is of the structure of .12. The process according to claim 11 , wherein the at least one impurity is selected from the group consisting of CO claim 11 , HO claim 11 , HS claim 11 , and mixtures thereof.13. The process according to claim 11 , wherein the at least one impurity comprises COand HO.14. The process according to claim 11 , wherein the impurity-depleted product gas stream comprises ≦2 mol % CO.16. The composite hollow fiber ...

Flexible Endoscope and Methods of Making Same

An endoscope includes a handle connected to a flexible, steerable, kink-resistant insertion tube. An endoscope insertion tube may include a shaft, a lower durometer section proximate to a distal end of the shaft, and a higher durometer section positioned between the lower durometer section and a medium durometer section. The endoscope insertion tube may further include a fourth thermoplastic laminate section proximate to a proximal end of the shaft and having a higher durometer. A method of making an endoscope insertion tube may include inserting a mandrel with one, two, or more lateral slots and a liner into a shaft, wherein the liner is positioned between the mandrel and the shaft, bonding a bonded portion of the liner to an inner surface of the shaft, separating other portion(s) of the liner from the shaft, and inserting a first deflection wire in a gap between the shaft and the unbonded portion(s) of the liner. 1. A method of making an endoscope insertion tube or components thereof , the method comprising:a. positioning a primary liner on a primary mandrel having an hourglass shape and at least a first slot and a second slot;b. positioning a secondary liner on each of at least two secondary mandrels;c. nesting each of the two secondary mandrels with deflection channel liners within the first slot and the second slot of the primary mandrel;d. wherein the primary liner is between the primary mandrel and the secondary mandrels;e. braiding a shaft around the primary liner and the secondary mandrels;f. positioning a plastic laminate on an exterior of the shaft;g. bonding portions of the primary liner and the plastic laminate to the shaft;h. removing the primary mandrel from the primary liner such that the primary liner defines a hollow inner lumen; andi. removing the secondary mandrels from the deflection channel liners such that the deflection channel liners define at least two hollow deflection channels positioned within the shaft and outside the inner lumen of the ...

Methods for manufacturing a paint roller and component parts thereof with adhesive of compounded material

Described are methods of making a paint roller using preformed strips or core material made from a compound of polypropylene and calcium carbonate having between 5% and 66% calcium carbonate by weight. One or various compounds may be used to form portions of one or multiple components that make up the paint roller, including, for example, the thermoplastic strips, adhesives and/or the backing of a composite cover material. The materials can be assembled in a continuous manufacturing process.

Injection Molding Method for Degradable Intravascular Stent with Flexible Mold Core Structure

Disclosed is an injection molding method for a degradable intravascular stent with a flexible mold core structure. The injection molding method includes the following steps: Step 1, winding a metal rod with a flexible metal film, and applying an inward bending stress to the flexible metal film; Step 2, fixing the flexible metal film to the metal rod, and processing a complementary structure of the degradable intravascular stent on the surface of the flexible metal film; Step 3, performing injection molding processing: Step 4, ending the injection molding, removing the mating body of the flexible metal film and the metal rod and the degradable intravascular stent formed on the surface of the flexible metal film by injection molding, performing cooling, separating the metal rod from the flexible metal film, withdrawing the metal rod, and then removing the flexible metal film to obtain a formed degradable intravascular stent. 1. An injection molding method for a degradable intravascular stent with a flexible mold core structure , comprising the following steps:Step 1, winding a metal rod with a flexible metal film, and applying an inward bending stress to the flexible metal film before fixing the flexible metal film and the metal rod;Step 2, fixing the flexible metal film to the metal rod, and processing a complementary structure of the degradable intravascular stent on the surface of the flexible metal film;Step 3, assembling a mating body of the flexible metal film and the metal rod with a mold sleeve of an injection molding machine, and performing injection molding processing;Step 4, ending the injection molding, removing the mating body of the flexible metal film and the metal rod and the degradable intravascular stent formed on the surface of the flexible metal film by injection molding, performing cooling, separating the metal rod from the flexible metal film, and withdrawing the metal rod, wherein the flexible metal film will curl inwards; then removing the ...

SYSTEMS AND METHODS FOR UNIFORM EXPANSION AND HEAT SETTING OF MEDICAL DEVICES

Systems and methods for uniformly expanding and heat setting medical devices. One method can include expanding a medical device by advancing the medical device over a preheated expander, the medical device being uniformly expanded as the medical device is advanced over the preheated expander; and heat setting the expanded medical device while the medical device is positioned over the expander, the preheated expander being maintained at a predetermined heat-setting temperature. The preheated expander can be positioned within a thermal chamber that maintains the preheated expander at the predetermined heat-setting temperature. The medical device can be physically separated from the preheated expander when the medical device is positioned over the expander and can be comprised of a shape-memory material. The preheated expander can remain heated during the expansion and heat setting of a plurality of medical devices. 1. A method of manufacturing a medical device , the method comprising:positioning a medical device on a plurality of transport mechanisms supported by a preheated expander, the transport mechanisms being circumferentially arranged about a longitudinal axis; andradially moving the plurality of transport mechanism to advance the medical device over the preheated expander to uniformly expand the medical device, the preheated expander being maintained at a predetermined heat-setting temperature before and after the medical device is uniformly expanded.2. The method of claim 1 , wherein the preheated expander comprises a plurality of transport guides.3. The method recited in claim 1 , further comprising heat setting the expanded medical for a predetermined period of time.4. The method recited in claim 1 , wherein the preheated expander is positioned within a thermal chamber that maintains the preheated expander at the predetermined heat-setting temperature.5. The method recited in claim 1 , further comprising advancing the medical device towards the preheated ...

Wire-Reinforced Tubing and Method of Making the Same

An apparatus for and method of manufacturing an improved wire-reinforced plastic tubing for medical and other applications is disclosed. A plurality of spaced-apart wire segments may be wound onto successive portions of a long segment of plastic tubing which portions are supported for rotation to wind coil wire thereon by rotating the plastic tubing while a supply of coil wire is wound onto the plastic tubing. When multiple winding segments have been wound on the long segment of plastic tubing, the segments may be separated into individual wire-reinforced tubing products each having one or more wire windings thereupon. 1. A method of manufacturing wire-reinforced plastic tubing segments , comprising:supplying an extended length segment of plastic tubing from a supply reel;supporting a portion of the plastic tubing supplied from the supply reel intermediate two spaced-apart air chucks, the portion of the plastic tubing located intermediate the air chucks defining an axis of rotation;taking up the plastic tubing onto a take-up reel;simultaneously rotating the supply reel, the air chucks, and the take-up reel about the axis of rotation while supplying a reinforcing wire to the portion of the plastic tubing located intermediate the air chucks to helically wind at least one wire winding onto the portion of the plastic tubing located intermediate the air chucks;releasing the air chucks and advancing the plastic tubing from the supply reel to the take-up reel to advance a subsequent portion of the plastic tubing to the location between the air chucks and supporting the subsequent portion of the plastic tubing with the air chucks;repeating the rotating and releasing steps;installing an outer plastic layer over the exterior of the plastic tubing and the wire windings thereupon; andcutting the plastic tubing into segments each having at least one wire winding.2. A method as defined in claim 1 , wherein the extended length segment of plastic tubing is made of a thermoplastic ...

Apparatus for curing a tubular liner

The present invention relates to an apparatus for curing resin-impregnated tubular liners by means of high-energy radiation, comprising at least two radiation sources for producing high-energy radiation, wherein the apparatus has a front end, a rear end opposite the front end, two opposite side ends, an upper end and a lower end opposite the upper end, wherein a length of the apparatus, measured from the front end to the rear end, a width of the apparatus, measured from a side end to the opposite side end, and/or a height of the apparatus, measured from the lower into the upper end, is smaller in a transport state than in an operating state, in that at least one element of the apparatus is mounted such that the element can be folded out, displaced, rotated, and/or moved, and wherein at least one further radiation source is arranged to be spaced further apart from at least one further radiation source when in the operating state than in the transport state. The invention further relates to a use of such an apparatus.

Head and system for continuously manufacturing composite hollow structure

A head is disclosed for use with a continuous manufacturing system. The head may have a housing configured to receive a matrix and a continuous fiber, and a diverter located at an end of the housing. The diverter may be configured to divert radially outward a matrix-coated fiber. The head may also include a cutoff having an edge configured to press the matrix-coated fiber against the diverter.

Method, line and machine for manufacturing a flexible hose/connector assembly of polymeric material

A method for manufacturing a hose/connector assembly of polymeric material includes the steps of: providing a flexible hose of a first thermoplastic material; providing the connector of a second thermoplastic material having a hardness greater than the first thermoplastic material and a first end for coupling with a liquid source and a second end with a seat for receiving one end of the hose; translating the end of the flexible hose to engage the seat of the connector; rotating the connector to cause a rotational friction welding with the flexible hose; and periodically comparing the welding torque with the maximum allowable torque for the hose and the connector. The step of rotating the connector with respect to the hose is interrupted if the welding torque is equal to or greater than the maximum allowable torque. 1. A method of manufacturing a hose/connector assembly of polymeric material , the assembly comprising:{'b': 10', '11, 'a flexible hose () comprising at least one layer () made of a first thermoplastic material having Shore hardness according to ISO 868 of 50 ShA to 90 ShA; and'}{'b': 20', '20', '21', '22', '25', '14', '10, 'a connector () made of a second thermoplastic material having Shore hardness according to ISO 868 greater than that of the first thermoplastic material, the first and the second thermoplastic materials being compatible with each other, the connector () having a first end () configured to be coupled with a liquid source and a second end () with a seat () configured to coaxially receive an end () of the hose ();'}the method comprising the steps of:{'b': '10', 'providing the flexible hose ();'}{'b': '20', 'providing the connector ();'}{'b': 10', '20', '14', '10', '25', '20, 'mutually approaching the flexible hose () and the connector () so that the end () of the flexible hose () is inserted into the seat () of the connector ();'}{'b': 20', '10', '28', '14', '10', '25', '22', '20', '10', '20, 'rotating the connector () with respect to the ...

METHOD AND APPARATUS FOR ADDITIVE MECHANICAL GROWTH OF TUBULAR STRUCTURES

A method and apparatus is disclosed for additive manufacturing and three-dimensional printing, and specifically for extruding tubular objects. A print head extrudes a curable material into a tubular object, while simultaneously curing the tubular object and utilizing the interior of the cured portion of the tubular object for stabilizing and propelling the print head. 1. A method of producing a tubular shaped product , comprising:discharging a solid strand material encased in a curable matrix material from an additive manufacturing device;curing the curable matrix material during discharging;supporting a portion of the additive manufacturing device with the tubular shaped product during discharging; andpropelling the additive manufacturing device during discharging.2. The method of claim 1 , wherein curing the curable matrix material includes exposing the curable matrix material to at least one of ultraviolet light claim 1 , heat claim 1 , a chemical agent claim 1 , a laser beam claim 1 , and a sonic vibration.3. The method of claim 1 , further including at least one of rotating the additive manufacturing device and adjusting an angle of the additive manufacturing device during discharging.4. The method of claim 1 , further including coordinating at least one of a rate of the discharging and a rate of the propelling to adjust an axial trajectory of the tubular shaped product.5. The method of claim 1 , wherein discharging the tubular shaped product includes discharging a ring of composite material.6. The method of claim 1 , wherein discharging the tubular shaped product includes discharging a plurality of separate continuous strands adjacent to each other and arranged in a ring.7. The method of claim 6 , further including selectively inhibiting discharging of at least one of the plurality of separate continuous strands claim 6 , such that a wall opening is formed in the tubular shaped product.8. The method of claim 6 , further including moving at least one of a ...

DEVICE FOR CONNECTING SHEATHS TOGETHER BY APPLYING ADHESIVE INTERNALLY, A CORRESPONDING ROLL OF ADHESIVE, AND A CORRESPONDING METHOD OF CONNECTION

The invention provides a device for connecting together two flat tubular sheaths, the device including: 1. A device for connecting together two flat tubular sheaths , the device including:a blocker for blocking one end of a first sheath, the blocker having opener for opening an end of the first sheath; andan adhesive applicator system for applying adhesive to the inside of the open end of the sheath;the blocker being arranged, once adhesive has been applied to the end of the first sheath, to authorize closure of the end of the first sheath on an end of the second sheath.2. The device according to claim 1 , wherein the adhesive-applicator system includes an adhesive dispenser.3. The device according to claim 1 , wherein the device includes a frame claim 1 , the blocker being arranged on the frame.4. The device according to any preceding claim 1 , wherein the device includes a carriage for moving an end of the second sheath relative to the first sheath.5. The device according to claim 4 , wherein the carriage includes a base for supporting the second sheath claim 4 , the base being arranged in the device in such a manner as to be movable in translation relative to a frame of the device with movement in translation only.6. The device according to claim 4 , wherein the carriage carries the adhesive-applicator system in order to apply adhesive to the end of the first sheath.7. The device according to claim 6 , wherein the carriage has two adhesive-applicator systems arranged at opposite ends of the carriage.8. The device according to any one of claim 4 , wherein the carriage includes an extension carrying a motor-driven drive wheel claim 4 , the carriage is thus arranged in such a manner that when the carriage is in register with one of the blockers claim 4 , the drive wheel is situated in register with a reel formed by the sheath so as to be able to drive the reel in rotation either directly or via an element constrained to rotate with the reel.9. The device according ...

Method for manufacturing of urinary catheters

A method for manufacturing an elongated element ( 200 ) is disclosed. The method comprises arranging a molding cavity ( 101 ), defined by a mold ( 103 ) and a mold insert ( 104 ), said mold insert ( 104 ) comprising a mold core ( 105 ). A liquid material is then injected into a proximal end ( 102 ) of the molding cavity ( 101 ), and the material is solidified, such that the elongated element ( 200 ) is formed. The elongated element ( 200 ) and mold insert ( 104 ) are removed from said mold ( 103 ), and the elongated element ( 200 ) is removed from said mold insert ( 104 ), wherein said removal of said elongated element ( 200 ) from said mold insert ( 104 ) comprises injecting a fluid in the interface between the elongated element ( 200 ) and the mold core ( 105 ). A mold assembly for the manufacture thereof is also provided.

MULTI-CHANNEL PLUMBING PRODUCTS

Novel plumbing products, including faucets, are fabricated, e.g., using metallic 3-dimensional or other 3-D printing techniques, to have complex geometries, such as multiple channels that may diverge and re-converge near the spout. The geometries of the various channels can resemble interwoven net-like patterns that define various shapes between the channels. The plumbing fixtures may be formed from one or more of stainless steels, INCONEL, brass, bronze, polycarbonate, PVC, acrylics, rigid polyolefins, PET, carbon fiber, AES, or other plumbing fitting suitable corrosion resistant materials. In some embodiments, the handles of an exemplary faucet can include the same or a similar multiple channel configuration as the spout, providing an advantageously, aesthetically pleasing faucet system. In exemplary embodiments, faucet spouts and their handles are formed so as to couple to standard faucet underbodies, standard valve platforms, or standard threaded hose/waterway connections. 1. A faucet , comprising:a water chamber;a plurality of water channels fluidly connected to the water chamber, wherein each of the plurality of water channels is configured to transport water from a respective water inlet proximate to the water chamber to a respective water outlet;wherein the plurality of water channels forms a base portion of the faucet configured to transport water upward from the respective water inlets through the base portion;wherein the plurality of water channels forms a spout portion of the faucet configured to transport water downward through the spout portion toward the respective water outlets;wherein a first channel of the plurality of channels terminates, at its respective water outlet, in the spout portion of the faucet, at a first vertical height, andwherein a second channel of the plurality of channels terminates, at its respective water outlet, in the spout portion of the faucet, at a second vertical height lower than the first vertical height.2. The faucet of ...

METHOD AND APPARATUS FOR MOLDING AN ELONGATED HOLLOW ARTICLE

A molding apparatus includes a mold comprising a stationary outer mold with a substantially tubular mold cavity, a moveable end mold with an end mold cavity alignable with the tubular mold cavity, and a stationary elongated mold core with a fluid channel therethrough, the mold core extending through the tubular cavity into the end mold cavity. A method of using the apparatus includes injecting a molding material at a material flow rate into the mold, moving the end mold at a speed in a linear direction from a first position to a second position, supplying a fluid at a fluid flow rate to the fluid channel, and varying at least one of the material flow rate, the end mold speed and the fluid flow rate as the end mold moves from the first position to the second position. 1. A molding apparatus for an elongated hollow article , the apparatus comprisinga mold comprising a stationary outer mold with a substantially tubular cavity formed therein, a moveable end mold with an end mold cavity alignable with the tubular mold cavity, and a stationary elongated mold core with a fluid channel therethrough, the mold core extending through the tubular cavity into an end mold cavity of an end mold part;a molding material metering device coupled to the substantially tubular cavity to control the supply of a molding material to the substantially tubular cavity;an actuator coupled to the end mold to move the end mold from a first position with the end mold cavity aligned with the central mold cavity to a second position at a predetermined distance between the end mold and the outer mold; anda valve coupled to the fluid channel to control the supply of a fluid to the fluid channelwherein the molding apparatus is configured to vary a material flow rate of the molding material via the metering device, to vary a speed of the end mold via the actuator or to vary a fluid flow rate of the fluid via the valve as the end mold moves between the first position and the second position.2. The ...

GUIDING AND CALIBRATION DEVICE FOR BLOWN PLASTIC FILM WITH SLIDING BARS

A guiding and calibration device () of a blown plastic film is described, comprising a bearing structure () which includes equidistant rotation fulcrums () of rotating structures () along an ideal circumference. Each rotating structure () comprises a rotating vertical upright () and at least one arm () fixed to said rotating vertical upright (). A vertical floating element () is rotatably fixed to the at least one arm (). The device () further comprises groups of rectilinear bars () consisting of at least one pair of rectilinear bars () parallel to each other and placed slidingly side by side along respective external edges. 1. A guiding and calibration device for a blown plastic film , comprising a bearing structure which provides along an ideal circumference equidistant rotation fulcrums of rotating structures ,each rotating structure comprises a rotating vertical upright and at least one arm fixed to the rotating vertical upright,a vertical floating element is rotatably fixed to the at least one arm, guide means for the blown plastic film are fixed to the vertical floating element, the rotating structures are connected to each other through motion synchronization means operated by at least one motor,the improvement comprisingthe guiding and calibration device further comprises groups of rectilinear bars formed by at least one pair of rectilinear bars parallel to each other and slidingly side by side along respective external edges,each rectilinear bar of each pair of rectilinear bars being integrally fixed to respective adjacent vertical floating elements.2. The guiding and calibration device according to claim 1 , wherein the rectilinear bars of each pair of rectilinear bars are mutually slidingly constrained by at least one slider able to maintain the parallelism of the rectilinear bars during adjustment movement of opening and closing of the guiding and calibration device claim 1 , between a maximum opening position and a minimum opening position.3. The ...

ELASTIC PULL ROPE FOR USE IN EXERCISE

The present invention relates to an elastic pull rope used in exercise, comprising an inner tube layer with a hollow channel, a woven wire layer surrounding the outer part of the inner tube layer and an outer tube layer surrounding the outer part of the woven wire layer, wherein the woven wire layer surrounds the outer surface of the inner tube layer via a plurality of first wire rods, and weaving a plurality of second wire rods around the first wire rods in an overlapping manner in order to form and clamp the woven wire layer between the inner and outer tube layers, so that the formed elastic pull rope would have improved overall structural strength. 1. An elastic pull rope for use in exercise , comprising:an inner tube layer comprising a hollow channel;a woven wire layer, surrounding the outer part of the inner tube layer in the form of a plurality of first wire rods surrounding the annular surface of the inner tube layer and a plurality of second wire rods woven on the first wire rods in a surrounding and overlapping manner, and the overlapping angle of the first wire rods and the second wire rods is smaller than 90 degrees; andan outer tube layer surrounding the outer part of the woven wire layer.2. The elastic pull rope for use in exercise according to claim 1 , wherein claim 1 , the inner tube layer and the outer tube layer are made of latex or thermoplastic resin material.3. The elastic pull rope for use in exercise according to claim 1 , wherein claim 1 , the first wire rod and the second wire rod are not metal.4. The elastic pull rope for use in exercise according to claim 1 , wherein claim 1 , the first wire rods and the second wire rods are made of nylon thread claim 1 , cotton thread claim 1 , or polyester fiber thread.5. The elastic pull rope for use in exercise according to claim 1 , wherein claim 1 , the first wire rods and the second wire rods are made of one of or a blend of two or three kinds of wires woven from nylon thread claim 1 , cotton thread ...

EXTRUDABLE TUBING AND SOLVENT BONDED FITTING FOR DELIVERY OF MEDICINAL FLUIDS

Assembly, and method of fabricating an assembly including an extruded polymeric tube and a prefabricated tubular polymer body (fitment), the method including the steps of: extruding an outer tubular surface of a thermoplastic propylene-based elastomer (PBE) material; treating the outer surface along a selected axial length at one end of the tube with a solvent; inserting the treated one end into a hollow tubular passage of a prefabricated tubular body having an inner passage wall of a polypropylene-based material; and allowing the mated juncture to dry such that the treated outer surface solvent bonds to the inner wall. The tubing is preferably a coextruded tube having an innermost layer of a thermoplastic ethylene-based olefinic material. The mating tubing and fitment overcome the prior art problems of stress cracking, fluid contamination and/or processing difficulties. 1. A method of coaxially bonding a polymeric tube to a prefabricated tubular body , the prefabricated tubular body defining a hollow central tubular passage having a longitudinal axis bounded by an inner wall of polypropylene based material , the method comprising:extruding a mating polymeric tube having an outer tubular wall surface comprising thermoplastic propylene-based elastomer (PBE) material, and a central tubular passage having a longitudinal axis and opposing ends,treating the outer surface of the mating tube along a selected axial length at one of the end of the tube with a solvent that causes the treated outer surface to adhere to the inner wall of the tubular body on drying,inserting the treated end of the mating tube coaxially into the central tubular passage of the tubular body such that the outer surface of the treated end mates with the inner wall of the tubular body along the selected axial length to form a mated juncture,allowing the mated juncture to dry such that the treated outer surface solvent bonds to the inner wall.2. The method of wherein the solvent is selected from one or ...

TISSUE-ENGINEERED CONSTRUCTS

The present invention provides constructs including a tubular biodegradable polyglycolic acid scaffold, wherein the scaffold may be coated with extracellular matrix proteins and substantially acellular. The constructs can be utilized as an arteriovenous graft, a coronary graft, a peripheral artery bypass conduit, or a urinary conduit. The present invention also provides methods of producing such constructs. 1. A construct comprising a tubular biodegradable non-woven polyglycolic acid scaffold comprising non-biodegradable polyethylene terephthalate supports at each end of the tubular biodegradable polyglycolic acid scaffold , wherein the density of the polyglycolic acid is about 45 mg/cc to about 75 mg/cc and said density is uniform across the entire tubular scaffold , wherein the thickness of the polyglycolic acid is about 0.8 to about 1.2 mm , wherein the thickness of the fibers within the polyglycolic acid is about 5 to about 20 μm , and wherein the porosity of the polyethylene terephthalate is >200 cc/min/cmand the supports permit the attachment and growth of cells.2. The construct of claim 1 , wherein the length of the tubular biodegradable polyglycolic acid scaffold is about 1 cm to about 100 cm.3. The construct of claim 1 , wherein the inner diameter of the tubular biodegradable polyglycolic acid scaffold is about 3 mm to about 6 mm.4. The construct of claim 1 , wherein the construct is substantially free of heavy metal contaminants.5. The construct of claim 4 , wherein the construct comprises trace amounts of heavy metal contaminants selected from the group consisting of: aluminum claim 4 , barium claim 4 , calcium claim 4 , iodine claim 4 , lanthanum claim 4 , magnesium claim 4 , nickel claim 4 , potassium and zinc.6. The construct of claim 1 , wherein the construct further comprises extracellular matrix proteins.7. The construct of claim 6 , wherein the thickness of the extracellular matrix proteins is greater than about 200 micrometers at the thinnest ...

COMPOSITE BOW CENTRALIZER

A centralizer comprises a first collar, a second collar, a plurality of bow springs coupling the first collar to the second collar, and a plurality of particulates disposed on an outer surface of at least one bow spring. One or more of the first collar, the second collar, and the bow springs comprises a composite material. In some embodiments, the centralizer comprises a third collar, wherein the plurality of bow springs comprise a first portion of bow springs and a second portion of bow springs, and wherein the first portion of the bow springs couple the first collar to the third collar and the second portion of the bow springs couple the second collar to the third collar. 1. A method of forming a composite centralizer , the method comprising:forming a plurality of composite bow springs from a fiber and a resin;curing the composite bow springs in a desired shape to form a plurality of cured bow springs;disposing a first portion of a resin-wetted fiber about a cylindrical mandrel to form a plurality of collars;disposing the plurality of cured bow springs onto the mandrel with the bow spring ends in contact with the first portion of resin-wetted fiber;disposing a second portion of the resin-wetted fiber about the cylindrical mandrel and about at least a portion of the first portion of the resin-wetted fiber; andcuring the collars to form a composite centralizer.2. The method of claim 1 , wherein the fiber is supplied as a filament claim 1 , a yarn claim 1 , a tow claim 1 , a roving claim 1 , a tape claim 1 , a fabric claim 1 , or any combination thereof.3. The method of claim 1 , wherein forming the plurality of composite bow springs comprising aligning the fiber in the resin in a longitudinal direction.4. The method of claim 1 , wherein disposing a first portion of a resin-wetted fiber about a cylindrical mandrel comprises aligning the fiber in the collars in a circumferential direction relative to the cylindrical mandrel. This application is divisional of and ...

DRIP LINE AND EMITTER AND METHODS RELATING TO SAME

An irrigation emitter and drip line, and methods relating to same, are provided for reducing the flow and pressure of fluid via an emitter or plurality of emitters defined by two concentric tubes. In one form, the first tube defines an emitter inlet and connected pressure-reducing flow channel and the second tube is extruded over the first tube to enclose the emitter inlet and flow channel and defines an outlet connected to an end of the flow channel opposite the inlet to create an emitter for converting fluid flowing at a high flow rate in the lumen and at the first end of the inlet to a fluid with a low flow rate at the outlet of the emitter. In another form, a drip line is provided having a plurality of such emitters. Various other forms and methods relating to the emitter and drip line are also disclosed. 1. A method of manufacturing a drip line comprising:extruding a first tube layer having inner and outer surfaces and defining an inner lumen through which fluid may flow;embossing a plurality of inlets and pressure-reducing flow channels having first and second ends on an exterior surface of the first extruded tube layer, with each pressure-reducing flow channel being connected to one of the plurality of inlets at the first end each of the pressure-reducing flow channels to form a corresponding flow channel for each inlet, and the plurality of inlets opening to the inner lumen defined by the inner surface of the first extruded tube layer and sized to receive pressurized fluid from the inner lumen;extruding a second tube layer over the first tube layer to enclose the plurality of inlets and flow channels; andmaking outlet openings in the second extruded tube layer near the second end of each pressure-reducing flow channel so that the flow channel extends between and connects the inlet and outlet of one of the plurality of inlets and outlets to form an emitter for reducing the pressure and flow of the pressurized fluid received at the inlet by the time the fluid ...

PROPHYLACTIC HAVING A TEXTURED PATTERN

A prophylactic device includes a base for receiving a portion of a body, a tip for containing body fluids, and a tubular body in between. The tubular body includes at least one area with a textured pattern, including lines running along the tubular body (e.g., lines running in at least three directions) that form shapes on the tubular body with portions of the lines forming edges of the shapes (e.g., circles, ellipses, polygons, etc.). The textured pattern forms a reinforcing mesh that wraps around the tubular body. A mold can be used for making the prophylactic device, where the mold includes different portions for receiving material(s), and is shaped to form the material(s) into the base, tip, and tubular body of the prophylactic device. 1. A prophylactic device comprising:a closed distal tip for containing body fluids therein;a tubular body continuous with the distal tip having at least one area comprising a textured pattern along the tubular body, the textured pattern molded onto a surface of the tubular body and comprising lines running in at least three directions along the tubular body, the lines forming a plurality of shapes with portions of the lines forming edges of the shapes, the textured pattern comprising a reinforcing mesh wrapping around the tubular body; andan open proximal base continuous with the tubular body for receiving a portion of a body within.2. The prophylactic device of claim 1 , wherein the plurality of shapes are a plurality of hexagons.3. The prophylactic device of claim 1 , wherein the plurality of shapes are shapes that include at least five sides.4. The prophylactic device of claim 1 , wherein the plurality of shapes are shapes that include at least six sides.5. The prophylactic device of claim 1 , wherein the plurality of shapes are round or ellipsoid shapes.6. The prophylactic device of claim 1 , wherein the textured pattern is a honeycomb lattice.7. The prophylactic device of claim 1 , wherein at least some of the lines include ...

Tubular Structure and a Method of Manufacturing Thereof

Methods and structures are disclosed. An example method includes: rotating a tubular mandrel about a longitudinal axis of the tubular mandrel; depositing a composite material on an inner surface of the tubular mandrel to form a composite tubular member on the inner surface of the tubular mandrel; inserting and expanding an inner expandable mandrel within the composite tubular member to cause the inner expandable mandrel to press the composite tubular member against the inner surface of the tubular mandrel; curing the composite tubular member; removing the inner expandable mandrel; placing a frame within the composite tubular member; and removing the tubular mandrel so as to obtain the composite tubular member with the frame placed therein. 1. A method comprising:rotating a tubular mandrel about a longitudinal axis of the tubular mandrel, wherein the tubular mandrel is vertically-oriented;depositing a composite material on an inner surface of the tubular mandrel as the tubular mandrel is rotated so as to form a composite tubular member on the inner surface of the tubular mandrel;inserting an inner expandable mandrel within the composite tubular member;expanding the inner expandable mandrel so as to cause the inner expandable mandrel to press the composite tubular member against the inner surface of the tubular mandrel;curing the composite tubular member while being sandwiched between the inner expandable mandrel and the tubular mandrel;removing the inner expandable mandrel;placing a frame within the composite tubular member; andremoving the tubular mandrel so as to obtain the composite tubular member with the frame placed therein.2. The method of claim 1 , wherein the tubular mandrel is rotated at a particular rotational speed claim 1 , and wherein the inner expandable mandrel is rotated at the particular rotational speed such that respective rotations of the inner expandable mandrel and the tubular mandrel are synchronized.3. The method of claim 1 , further ...

Nylon 66 hollow fiber, method and equipment for manufacturing the same

A method for manufacturing a nylon 66 hollow fiber includes steps as follows. A plurality of nylon 66 particles are provided. A melting step is provided, wherein the nylon 66 particles are melted so as to form a spun liquid. A fiber spitting step is provided, wherein the spun liquid goes through a hollow spinneret plate so as to form hollow nascent fibers. An evacuating step is provided, wherein the hollow nascent fibers are preliminarily solidified so as to form hollow half-solidified fibers. A cooling step is provided, wherein the hollow half-solidified fibers are cooled and solidified so as to form solidified fibers. A collecting and oiling step is provided. A drawing step is provided. A winding step is provided so as to obtain the nylon 66 hollow fiber.

MOLDED HOSE WITH FABRIC LAYER

A reinforced hose includes an inner layer, a reinforcing intermediate layer, and an outer layer. The inner layer has and inwardly projecting sealing rib extending circumferentially on an inner surface thereof. The inner surface may also have an end stop to be engaged by a fitting received in the hose. The outer layer has a pair of annular clamp guides projecting outwardly which are axially spaced from an end of the hose. The sealing rib is positioned between the clamp guides to indicate an optimum location for a hose clamp. 1. A hose structure comprising:(a) an elongated tubular hose member having an outer surface, an inner surface, and a tubular axis; the hose member having opposite ends; and(b) a radially outwardly projecting circumferential clamp guide formed on the outer surface of the hose member in axially spaced relation to an end of the hose member.2. A hose structure as set forth in wherein the clamp guide is a first clamp guide and including:(a) a second clamp guide substantially similar to the first clamp guide and formed on the outer surface of the hose member in axially spaced relation to the first clamp guide.3. A hose structure as set forth in and including:(a) an inwardly projecting circumferential sealing rib formed on the inner surface of the hose member in axially spaced relation to the clamp guide.4. A hose structure as set forth in and including:(a) a plurality of axially spaced, inwardly projecting, circumferential, sealing ribs formed on the inner surface of the hose member in axially spaced relation to the clamp guide.5. A hose structure as set forth in and including:(a) an inwardly projecting stop structure formed on the inner surface of the hose member in axially spaced relation to the clamp guide.6. A hose structure as set forth in wherein:(a) the hose member is formed with more than one layer of material.7. A hose structure as set forth in wherein:(a) the hose member is formed with a reinforcing layer.8. A hose structure as set forth in ...

Device for producing hollow porous film and method for producing hollow porous film

The present invention relates to a device for producing a hollow porous film, the device comprising a spinning nozzle that discharges/shapes a film-forming resin solution dissolved to at least a hydrophobic polymer to a favorable solvent, a processing vessel that houses a processing gas containing a nonsolvent of the hydrophobic polymer and includes a first opening through which the film-forming resin solution discharged/shaped from the spinning nozzle is introduced, and a second opening from which the film-forming resin solution having come into contact with the gas containing the nonsolvent of the hydrophobic polymer is led, a solidification tank which houses a solidification solution and into which the film-forming resin solution led from the second opening is introduced; and gas elimination means for eliminating the processing gas, which flows out of the first opening, from the vicinity of the spinning nozzle.

MOULD EQUIPMENT FOR PIPELINE SECTION COATING AND METHODS FOR COATING OF PIPELINE SECTIONS WITH MOULDS

A mold for coating a pipeline section with molten coating material from an injection molding machine, wherein the mold comprises a shell of impervious material reinforced by an exoskeleton of non-distensible material. An assembly for supporting a mold comprising a plurality of mutually separable shell bodies for coating a pipeline section, wherein the assembly comprises motorized opening and closing of the shell bodies in a straight line. An assembly for supporting a bent pipeline section wherein the assembly comprises a base and a pair of arms extending from the base, wherein each arm comprises a respective clamping collar for clamping a bent pipe section between the arms. A vehicle for induction heating a bent pipeline section, wherein the vehicle comprises: a helical induction coil; and wheels arranged to guide movement of both ends of the induction coil through a tubular inside face of a bent pipeline section. 1. A mold for coating a pipeline section with molten coating material from an injection molding machine , wherein the mold comprises a shell of impervious material reinforced by an exoskeleton of non-distensible material.2. The mold of claim 1 , wherein the exoskeleton is made from a plurality interlocking of parts.3. The mold of claim 2 , wherein parts of the exoskeleton are made of steel and are one of welded together or mechanically connected with connectors.4. The mold of claim 1 , wherein the exoskeleton comprises parts contoured to complement an inside face of the shell.5. The mold of claim 1 , wherein the mold comprises connection means for connecting the mold to an injection molding machine.6. The mold of claim 1 , wherein the shell is made from molded material.7. The mold of claim 6 , wherein the molded material is glass-fiber reinforced plastic.8. The mold of claim 7 , wherein the molded material is at least 8 mm thick.9. The mold of claim 1 , wherein the shell comprises a plurality of mutually separable shell bodies each associated with a part ...

MOULD EQUIPMENT FOR PIPELINE SECTION COATING AND METHODS FOR COATING OF PIPELINE SECTIONS WITH MOULDS

A mold for coating a pipeline section with molten coating material from an injection molding machine, wherein the mold comprises a shell of impervious material reinforced by an exoskeleton of non-distensible material. An assembly for supporting a mold comprising a plurality of mutually separable shell bodies for coating a pipeline section, wherein the assembly comprises motorized opening and closing of the shell bodies in a straight line. An assembly for supporting a bent pipeline section wherein the assembly comprises a base and a pair of arms extending from the base, wherein each arm comprises a respective clamping collar for clamping a bent pipe section between the arms. A vehicle for induction heating a bent pipeline section, wherein the vehicle comprises: a helical induction coil; and wheels arranged to guide movement of both ends of the induction coil through a tubular inside face of a bent pipeline section. 1. An assembly for supporting a mold comprising a plurality of mutually separable shell bodies for coating a pipeline section with molten coating material from an injection molding machine , wherein the assembly comprises motorized opening and closing of the shell bodies in a straight line.2. The assembly of claim 1 , wherein the assembly comprises adjustable support for supporting molds of different sizes.3. The assembly of claim 1 , wherein the assembly comprises adjustable support for supporting molds for coating irregular pipeline sections or bent pipeline sections.4. The assembly of claim 1 , wherein the motorized opening and closing is guided by rails.5. The assembly of claim 1 , wherein the motorized opening and closing is operable to simultaneously move the shell bodies in opposite directions along the straight line.6. The assembly of claim 1 , wherein the assembly is coupled to an injection molding machine.7. An assembly for supporting a bent pipeline section claim 1 , wherein the assembly comprises a base and a pair of arms extending from the ...

Method of producing electrically conductive foam rubber roller, electrically conductive foam rubber roller, and image forming apparatus

The present invention provides a production method for producing an electrically conductive foam rubber roller which has a tubular body free from internal abnormal foaming and hence free from internal cracking after the foaming. The production method includes the steps of: continuously extruding a rubber composition into a tubular body ( 7 ); and passing the extruded tubular body ( 7 ) through a microwave crosslinking device ( 8 ) and then through a hot air crosslinking device ( 9 ) in an elongated state without cutting the tubular body. The rubber composition is extruded, foamed and crosslinked so that the tubular body has a thickness unevenness of not greater than 1.3 immediately after being passed through the hot air crosslinking device ( 9 ), the thickness unevenness being defined as a ratio T max /T min between a maximum radial thickness T max and a minimum radial thickness T min of the tubular body which are each measured in a cross section of the tubular body.

Therapeutic, fitness, and sports enhancement device

A therapeutic, fitness, and sports enhancement device which includes a cylindrically shaped body having a predetermined density and predetermined diameter, the body including a plurality of projections of a predetermined shape. One or more of the predetermined density and the predetermined diameter in combination with the predetermined shape of the projections optimize mobilization of soft tissue structures of the human body.

Wound retractor

A wound retractor comprising an outer ring, an inner ring, and a flexible sheath extending therebetween is described, wherein the inner ring has the strength, rigidity and bounce back characteristics of a solid injection-molded ring yet is manufactured by extrusion techniques described herein with a 20-30% reduction in materials, resulting in reduced manufacturing costs.

MECHANIZED INVERTER FOR PIPE LINERS

A system and method for efficiently and safely installing a pipe liner is provided, as well as methods of using the same. The system and method for efficiently and safely installing a pipe liner may provide an inverter configured to invert the pipe liner by introducing pressure into the pipe liner; provide a top roller; provide an assist system located between the inverter and the top roller, the assist system comprising: a main housing having a main housing top and a main housing bottom, and each of the main housing top and the main housing bottom having an opening; a first interior roller; a second interior roller; and a first motor; and feed the pipe liner onto the top roller, wherein the assist system feeds the pipe liner from the top roller to the inverter in an efficient and controller manner. 1. A system for installing a pipe liner into a host pipe , the system comprising:an inverter configured to invert said pipe liner by introducing pressure into said pipe liner;a top roller; and a main housing having a main housing top and a main housing bottom, and each of said main housing top and said main housing bottom having an opening;', 'a first motor driving a first interior roller in a first direction;', 'a second motor driving a second interior roller in a direction opposite to said first direction., 'an assist system located between said inverter and said top roller, said assist system comprising2. The system of claim 1 , wherein said pipe liner is a cured-in-place pipe liner.3. The system of claim 1 , wherein said first interior roller has a round profile.4. The system of claim 1 , wherein said second interior roller has a cam-shaped profile.5. The system of claim 1 , wherein said first interior roller has a round profile and said second interior roller has a cam-shaped profile.6. The system of claim 5 , wherein said first interior roller further comprises a plurality of exterior roller wheel sections.7. The system of claim 6 , wherein said plurality of ...

Method and apparatus for manufacturing dry liners for pipe repair

A method of manufacturing a liner for reinforcing a pipe includes providing a continuous first reinforcing fibers extending in a first direction, moving the first reinforcing fibers in a machine direction such that the first direction is parallel to the machine direction, providing sheets of a material having second reinforcing fibers extending in a second direction, placing the sheets onto the moving first reinforcing fibers such that the second direction is substantially perpendicular to the first direction, and folding the sheets into a closed shape.

Apparatus and Method for Cooling Plastic Film Tube in Blown Film Process

The present invention is directed to an apparatus for differential cooling of a plastic film tube. The apparatus and method includes the use of a blown film extrusion die that extrudes a plastic film tube upward. An air cooling system applies cooling air across one or more surfaces of the plastic film tube. One or more throttling valves are coupled to a pressurization pump that provides a pressurized working fluid, preferably water. The throttling valves are positioned to project the pressurized working fluid from outlets of the throttling valves towards circular arcs of the plastic film tube, the circular arcs of the plastic film tube being less than the circumference of the plastic film tube to provide a blown film tubular plastic film with controlled gauge variation. 110-. (canceled)11. A method of differential cooling for increasing a film thickness along a first circular arc of a plastic film tube comprising:extruding a plastic film tube out of a blown film extrusion die,applying cooling air from an air cooling system across one or more surfaces of the plastic film tube,supplying a pressurized working fluid to one or more throttling valves,positioning the one or more throttling valves to project the pressurized working fluid towards the first circular arc of a first circumference of the plastic film tube and not to project the pressurized working fluid towards a remainder of the first circumference of the plastic film tube that excludes the first circular arc, andthe method devoid of positioning any throttle valve to project pressurized working fluid towards the remainder.12. The method of further comprising: 'wherein evaporation of the pressurized working fluid decreases an air temperature adjacent the circular arc of the plastic film tube thereby resulting in a mean film thickness of the plastic film along the first circular arc of the plastic film being at least 25% greater than a mean film thickness of the plastic film tube along the first circumference of ...

CALIBRATION CAGE FOR THE PRODUCTION OF BLOWN FILMS

A calibration cage for the production of a blown film is provided. It has a supporting structure and a plurality of frames rotatable in the horizontal plane which are pivoted along the perimeter of the supporting structure at the vertices of a regular polygon, each frame carrying a vertical rod rotatable with respect thereto which in turn carries at least one element for guiding a blown film, each vertical rod being connected to the vertical rods adjacent thereto through connection elements that are rigid in the horizontal plane yet have a length variable in the plane, each connection element being pivoted between two horizontal pivots each of which forms with a vertical radial plane having the axis of rotation of the respective vertical rod an angle that is equal to half of the internal angle (α) of the regular polygon. 118.-. (canceled)13. A calibration cage for the production of a blown film , said calibration cage comprising:a) a supporting structure;b) a plurality of frames rotatable in the horizontal plane which are pivoted along the perimeter of said supporting structure at the vertices of a regular polygon;c) a vertical rod on each of said frames, each rod being carried by one of said frames and being rotatable with respect thereto; andd) at least one element on each of said vertical rods, each element being configured to guide a blown film,wherein each of said vertical rods is connected to at least one of the vertical rods adjacent thereto through at least one connection element that is rigid in the horizontal plane yet has a length variable in said plane through the relative motion of at least two parts thereof, said at least one connection element being pivoted between said adjacent vertical rods through two horizontal pivots, the axis of rotation of each of said horizontal pivots forming with a vertical radial plane comprising the axis of rotation of the respective vertical rod an angle that is equal to half of the internal angle of said regular polygon. ...

METHOD FOR MANUFACTURING OF URINARY CATHETERS

A method for manufacturing an elongated element () is provided. The method comprises arranging a molding cavity (), defined by a mold () and a mold insert (), said mold insert () comprising a mold core () and a displaceable mold cavity wall (), said displaceable mold cavity wall () being arranged between the mold () and the mold core (), such that the molding cavity has a start volume in a start position of the displaceable mold cavity wall (). Then a liquid material is injected into a proximal end () of the molding cavity (), where after the displaceable mold cavity wall () is displaced in relation to and along with the mold () and the mold core (), distally during said injection, to increase the molding cavity volume from the start volume into an end volume at an end position of the displaceable mold cavity wall (), wherein the molding cavity () in said end position of the displaceable mold cavity wall () corresponds to the elongated element (). The liquid material is solidified, such that the elongated element () is formed, and the elongated element () and mold insert () is removed from said mold (), where after the elongated element () is removed from said mold insert (). An elongated element and a mold assembly for the manufacture thereof are also provided. 1. A method for manufacturing an elongated element , comprising the steps of:arranging a molding cavity, defined by a mold and a mold insert, said mold insert comprising a mold core and a displaceable mold cavity wall, said displaceable mold cavity wall being arranged between the mold and the mold core, such that the molding cavity has a start volume in a start position of the displaceable mold cavity wall;injecting a liquid material into a proximal end of the molding cavity;displacing the displaceable mold cavity wall, in relation to and along with the mold and the mold core, distally during said injection, to increase the molding cavity volume from the start volume into an end volume at an end position of ...

Molded resin article and method for manufacturing same

A molded resin article and a method of manufacturing a molded resin article that suppresses generation of portions of reduced bonding strength while suppressing separation at the interface between a bond portion (secondary molding resin) on the one hand and a first body and a second body on the other. The molded resin article has a first contact surface formed perpendicular to the main surface of the first body and contacting the second body, a second contact surface formed perpendicular to the main surface of the second body and contacting the first body, and a bond portion bonding together the first body and the second body, formed by injecting molten resin into a resin channel formed by contacting the first contact surface against the second body and contacting the second contact surface against the first body and solidifying the molten resin.

TUBE JOINING DEVICE

[Object] To provide a tube joining device in which the degree of freedom of device design is improved. 1. A tube joining device that fuses an end of a first tube and an end of a second tube by a plate-shaped cutting member that is heated , and replaces the fused end of the first tube and the fused end of the second tube and joins the fused ends in an aseptic condition , comprising:a housing in which the first tube and the second tube are set;a cassette mounting portion to which a cassette that stores the cutting member is detachably mounted;a control unit that performs operation control; anda delivery mechanism that delivers the cutting member accommodated in the cassette to a stand-by position, at which the cutting member stands by, by a command of the control unit when fusing the first tube and the second tube,wherein the delivery mechanism includes,a first pusher member that is provided to perform forward movement and backward movement along a delivery direction and delivers the cutting member to a first position that is set between a take-out position at which the cutting member is taken out from the cassette and the stand-by position, anda second pusher member that is provided to perform forward movement and backward movement along the delivery direction in combination with the first pusher member, and delivers the cutting member from the first position to the stand-by position, andan operation of delivering the cutting member by the first pusher member is capable of being switched to an operation of delivering the cutting member by the second pusher member in synchronization with forward movement and backward movement of the first pusher member and the second pusher member.2. The tube joining device according to claim 1 ,wherein the first pusher member is disposed on a backward side of the second pusher member in the delivery direction, and moves forward along the delivery direction from a backward side in comparison to the take-out position to deliver the ...

Helically wound fluid-flow hose

A fluid supply hose having one or more support ribs, such as a helical support rib that forms a coil and/or individual support rings, of a relatively stiff thermoplastic material, and a thin web or wall of thermoplastic material that extends between the inside, outside or both of the ribs. The hose is exposed to an annealing process comprising: bringing the hose to a fully compressed position where the ribs are brought close together; heating the hose; while the hose is hot, extending the hose axially to a partially extended position where the distance between adjacent winds of the rib or rings of the hose when the hose is in the partially extended position is between about 20%-95% of the distance between adjacent winds of rib 20 or rings 40 of the hose when the hose is in the fully extended position; and allowing the hose to cool in the partially extended position.

HIGH PERFORMANCE COOLING ELEMENT

The present invention relates to an external cooling system for a molten film tube produced by a blown film tubular extrusion process, comprised of a divergent cooling element with a divergent cooling interface containing a cooling gas deflector spaced adjacent to the molten film tube and providing an expelled cooling gas (i) in a path opposing the flow of the molten film tube toward a first exit gap and (ii) in a path with the flow of the molten film tube toward a second exit gap. A minimum gap between the divergent cooling interface and the molten film tube occurs at the first exit gap and/or the second exit gap. Advantageously, the divergent cooling interface is provided with one or more compound angles to maximize stability and cooling efficiency. Additionally, multiple cooling elements can preferably be arranged in a stackable configuration to achieve higher throughput rates. Operation is characterized by improved film holding forces without the presence of high noise levels or detrimental vibration, flutter, and drag. Additionally, employing simplified single air delivery channels, and a stackable design, significantly reduces complexity and manufacturing costs. 1. An apparatus for cooling , the apparatus comprising:at least one divergent cooling element for receiving a flow of a molten film tube, the at least one divergent cooling element comprising a divergent cooling interface operable for expelling a cooling gas (i) in a path opposing the flow of the molten film tube toward a first exit gap and (ii) in a path with the flow of the molten film tube toward a second exit gap, wherein at least one of the first exit gap and the second exit gap define a minimum gap between the divergent cooling interface and the flow of the molten film tube.2. The apparatus according to claim 1 , wherein the divergent cooling interface comprises a cooling gas deflector for directing expelled cooling gas along the path opposing the flow of the molten film tube and along the path ...

RECYCLABLE PACKAGING MATERIAL AND PROCESS OF PREPARATION THEREOF

A recyclable article includes 50-90 wt % of at least one polyethylene having a density in the range 0.94 to 0.97 g/cm. The article exhibits Young's modulus less than 700 MPa; and a haze value less than or equal to 50%. The recyclable article can be included in a film or a laminate. The article can be prepared using a blown film extrusion process. 1. A recyclable article comprising:{'sup': '3', '#text': "50-90 wt % of at least one polyethylene having a density in the range 0.94 to 0.97 g/cm, wherein the article exhibits Young's modulus less than 700 MPa; and a haze value less than or equal to 50%."}2. The article as claimed in claim 1 , wherein the article exhibits Young's modulus less than 500 MPa; and a haze value less than or equal to 50%.3. The article as claimed in claim 1 , wherein the article is a film or a laminate.4. The article as claimed in claim 3 , wherein the film is a multilayer film having 3-11 layers.5. The article as claimed in claim 1 , wherein the at least one polyethylene is selected from high-density polyethylene claim 1 , medium-density polyethylene claim 1 , or combinations thereof.6. The article as claimed in claim 1 , wherein the article further comprises one or more component selected from high-density polyethylene claim 1 , low-density polyethylene claim 1 , linear low-density polyethylene claim 1 , or medium-density polyethylene.7. The article as claimed in claim 1 , wherein the article optionally comprises UV blocking agent claim 1 , pigment claim 1 , functional masterbatch claim 1 , or combinations thereof.8. The article as claimed in claim 1 , wherein the article has a thickness in the range of 50 μm to 520 μm.9. The article as claimed in claim 1 , wherein the film is made by blown film extrusion process.10. The article as claimed in claim 9 , wherein the blown film extrusion process is downward extrusion.11. The article as claimed in claim 4 , wherein the film has 5-7 layers made by downward extrusion blown film process comprising the ...

MULTI-LAYER FILMS AND METHODS OF MANUFACTURING THE SAME

The present disclosure relates to multi-layer film structures and methods of manufacturing the same. The films can be oriented and heat shrinkable. The films can include an ethylene vinyl alcohol layer. In certain instances, the films do not include an individual polyamide layer. 1. A heat shrinkable multi-layer film , comprising:an outer layer comprising at least one of polyethylene terephthalate, polyamide, or polypropylene;an inner layer comprising at least one of a polyolefin copolymer, a plastomer, an elastomer, or a terpolymer;a barrier layer comprising ethylene vinyl alcohol and an acid modified polyolefin; anda sealant layer comprising a sealant material;wherein the multi-layer film comprises an orientation factor of between about 2.0 and about 3.5 in the machine direction and between about 2.8 and about 4.0 in the cross-machine direction, wherein the multi-layer film is oriented at a temperature that is between about 85° C. and about 120° C.2. The multi-layer film of claim 1 , wherein the inner layer comprises at least one of a polyolefin plastomer claim 1 , a polyolefin elastomer claim 1 , a polyolefin terpolymer claim 1 , an ionomer claim 1 , or ethylene vinyl acetate.3. The multi-layer film of claim 2 , wherein the multi-layer film comprises ethylene vinyl acetate comprising between about 5% and about 50% claim 2 , between about 7.5% and about 40% claim 2 , between about 7.5% and about 30% claim 2 , between about 7.5% and about 25% claim 2 , between about 7.5% and about 20% claim 2 , between about 10% and about 20% claim 2 , or between about 10% and about 18% by weight of vinyl acetate.4. The multi-layer film of claim 2 , wherein the inner layer comprises a plastomer comprising propylene-ethylene or a derivative thereof.5. The multi-layer film of claim 1 , wherein the barrier layer comprises a blend of ethylene vinyl alcohol and an acid modified maleic anhydride grafted ethylene alpha olefin copolymer.6. The multi-layer film of claim 5 , wherein the ...

METHOD FOR PRODUCING A COMPOSITE TUBE FOR A MOTOR VEHICLE BODY AND ALSO COMPOSITE TUBE AND MOTOR VEHICLE

The present disclosure provides a composite tube and a method for producing a composite tube for a vehicle body. The method includes the steps of: providing a metal tube; forming the tube into a prespecified shape; introducing a spray gun into the tube; and spraying on a fiber coating in at least one region of the inner side of the tube using the spray gun. The fiber coating is a matrix material with embedded fibers. The method further includes removing the spray gun from the tube, and hardening the fiber coating. The present disclosure also provides a motor vehicle having a vehicle body which includes a composite tube. 1. A method for producing a composite tube for a vehicle body , the method comprising:providing a metal tube;forming the tube into a prespecified shape;introducing a spray gun into the tube;spraying a fiber coating in at least one region of an inner side of the tube using the spray gun, wherein the fiber coating is a matrix material with embedded fibers;removing the spray gun from the tube; andhardening the fiber coating.2. The method according to claim 1 , wherein the tube is formed from steel or aluminum.3. The method according to claim 1 , wherein the tube has at least one cross-sectional enlargement claim 1 , and the fiber coating is sprayed on a region of the cross-sectional enlargement.4. The method according to claim 3 , wherein the fiber coating is only sprayed on the at least one cross-sectional enlargement of the tube.5. The method according to claim 1 , wherein the tube is formed from aluminum claim 1 , and the hardening of the fiber coating takes place within a process for an artificial aging of the aluminum.6. The method according to claim 1 , wherein the hardening of the fiber coating takes place within a process for baking of a lacquer coating on a motor vehicle.7. The method according to claim 1 , wherein the tube is formed into the prespecified shape by hydroforming.8. A composite tube for a vehicle body claim 1 , the composite tube ...

SNORKELING TUBE STRUCTURE AND METHOD OF MANUFACTURING THE SAME

A snorkeling tube structure with a tube body and a partition portion is provided. The tube body is formed along an axis and has an outer surface and an inner surface which encircles the axis to define an air passage; the axis includes a curved section. The partition portion is formed integrally with the tube body along the axis, and disposed on the inner surface of tube body to divide the air passage into an intake passage and an outtake passage. A method of manufacturing a snorkeling tube structure is also provided, including the following steps: forming a parison including a first passage and a second passage; placing the parison in a mold cavity; injecting air into the first and second passages to inflate the parison towards a wall of the mold cavity; and removing the inflated parison from the mold to get a snorkeling tube structure. 1. A snorkeling tube structure , comprising:a tube body, formed by extending along an axis and comprising an outer surface and an inner surface opposite to the outer surface, wherein the inner surface encircles the axis to define an air passage, and the axis comprises a curved section; anda partition portion, extended along the axis, formed integrally with the tube body, and disposed on the inner surface to divide the air passage into an intake passage and an outtake passage.2. The snorkeling tube structure according to claim 1 , wherein the partition portion comprises a plate.3. The snorkeling tube structure according to claim 1 , wherein at least one of the tube body and the partition portion has a thickness which is not greater than 3.0 millimeters.4. The snorkeling tube structure according to claim 3 , wherein the thickness is not greater than 1.5 millimeter.5. The snorkeling tube structure according to claim 1 , wherein the axis comprises two end points between which a straight distance is defined claim 1 , and the straight distance is not lesser than 320 millimeters.6. The snorkeling tube structure according to claim 1 , ...

Composite ball bat including a barrel with structural regions separated by a porous non-adhesion layer

A composite ball bat or other sporting-good implement includes a handle and a barrel attached to or integral with the handle. The barrel has a wall including a first structural region and a second structural region between which a porous separation layer is positioned. The separation layer is at least partially coated with a release agent that prevents, or substantially prevents, adherence of the separation layer to at least one of the first or second structural regions.

Producing Method of Continuous Cylindrical Extruding Net and Equipment Thereof

A continuous extruding method of an elastomeric cylindrical mesh is provided with steps of: providing a thermoplastic elastomeric plastic for melting and mixing; and providing the melted thermoplastic elastomeric plastic from at least two concentric circles in opposite direction to form multiple thermoplastic elastomeric filaments, and the thermoplastic elastomeric filaments are fused at a site where overlapped to form the elastomeric cylindrical mesh. The extruding die head provided by the present invention is capable of continuously producing the mesh structure which could consider the relatively simple and low cost compared with the conventional production method. 1. A continuous extruding method of an elastomeric cylindrical mesh comprising steps of:providing a thermoplastic elastomeric plastic for melting and mixing; andproviding the melted thermoplastic elastomeric plastic from at least two concentric circles in opposite direction to form multiple thermoplastic elastomeric filaments, and the thermoplastic elastomeric filaments are fused at a site where overlapped to form the elastomeric cylindrical mesh.2. The method as claimed in claim 1 , wherein the elastomeric cylindrical mesh is further cooled and set.3. The method as claimed in claim 1 , wherein the elastomeric cylindrical mesh is further applied with an external force for pulling the site where the thermoplastic elastomeric filaments overlapped.4. A continuous extruding equipment of an elastomeric cylindrical mesh comprising:a mixing screw;a feeding tube;an extruding die head;a cooling unit;the mixing screw, the feeding tube, the extruding die head, and the cooling unit are set in order and connected by a melted fluid; whereinthe extruding die head comprises an outer output unit and an inner output unit in a concentric setting;the outer output unit and the inner output unit are rotated in the opposite direction;the outer output unit and the inner output unit each comprises multiple outer discharging ...

Sheath-Based Rollable Lenticular-Shaped and Low-Stiction Composite Boom

Various embodiments provide rollable and deployable composite booms that may be used in a wide range of applications both for space and terrestrial structural solutions. Various embodiment composite booms may be bistable, i.e. having a stable strain energy minimum in the coiled configuration as well as the in the deployed configuration. In various embodiments, a boom may be fabricated by aligning two independent tape-springs front-to-front encircled by a durable seamless polymer sleeve. The durable seamless polymer sleeve may allow the two tape-springs to slide past each other during the coiling/deployment process so as to reduce, e.g., minimize, shear and its derived problems. 1. A composite boom , comprising:a polymer sleeve;a first tape-spring; and the first and second tape-springs are encircled by the polymer sleeve without being structurally affixed together; and', 'the first and second tape-springs slide relative to one another inside the polymer sleeve during coiling and deployment of the bistable composite boom., 'a second tape-spring, wherein2. The composite boom of claim 1 , wherein the first tape-spring is configured to subtend to a first angle and the second tape-spring is configured to subtend to a second angle to create a space between the first and second tape-springs inside the polymer sleeve during deployment of the bistable composite boom.3. The composite boom of claim 2 , wherein the first angle and the second angle sum together to be less than 360 degrees.4. The composite boom of claim 2 , wherein the first angle and the second angle are each less than 90 degrees.5. The composite boom of claim 4 , wherein the first angle and the second angle are each between 170 degrees and 180 degrees.6. The composite boom of claim 2 , wherein the polymer sleeve is a seamless polymer sleeve.7. The composite boom of claim 6 , wherein the polymer sleeve is comprised of Kapton claim 6 , Teflon or Fluorinated Ethylene Propylene.8. The composite boom of claim 7 , ...

EXTENSIBLE FLEXIBLE HOSE, AND METHOD FOR MANUFACTURING THEREOF

The present invention discloses an extensible flexible hose comprise one elastic inner layer, one elastic textile reinforcement layer and one elastic outer layer, where the elastic textile reinforcement layer placed on the outer surface of the elastic inner layer, the elastic outer layer disposed on the elastic textile reinforcement layer, while the elastic inner layer and the elastic textile reinforcement layer are reciprocally coupled, the elastic outer layer and the uncovered surface area of the elastic inner layer are reciprocally joined to form a unitary tubular member. The elastic textile reinforcement layer comprising a twill weave textile layer, with stretch yarns longitudinally distributed among. The objective of the present invention is to improve the phenomenon that the telescopic water pipe is liable to be damaged due to strong friction between inner core and outer sheath, to prolong the service life of the extensible flexible hose. The hose body adopts elastic materials, which has advantages as great elasticity, easy carrying, easy cleaning, and convenient storage. 1. An extensible flexible hose , comprising:one elastic inner layer, one elastic textile reinforcement layer, one elastic outer layer;the elastic textile reinforcement layer placed on the outer surface of said the elastic inner layer, the elastic outer layer disposed on said elastic textile reinforcement layer;wherein said one elastic inner layer and said one elastic textile reinforcement layer are reciprocally coupled, said one elastic outer layer and the uncovered surface area of said one elastic inner layer are reciprocally joined to form a unitary tubular member;wherein said elastic textile reinforcement layer comprising a twill weave textile layer, with stretch yarns longitudinally distributed among.2. The hose according to claim 1 , wherein said twill weave textile layer is prepared by twilled weaving claim 1 , while said stretch yarns being parallelly woven in between;wherein said ...

BALLOON EXPANDED POLYMER STENT

A medical device includes a polymer stent (or scaffold) crimped to a catheter balloon. The stent, after being expanded from a crimped state by the balloon, provides a crush recovery of about 90% of its expanded diameter after being pinched or crushed by an amount equal to about 50% of the expanded diameter. The stent has a pattern including a W-shaped or W-V shaped closed cell and links connecting the closed cells. 122-. (canceled)23. A medical device , comprising:a stent made from a polymer composition comprising poly (L-lactide),the stent has a pre-crimp diameter and a wall thickness such that a ratio of the pre-crimp diameter to the wall thickness is between 30 and 60,the stent is configured for being crimped to a balloon by plastic deformation of the stent, andthe stent has a pattern of interconnected elements, the interconnected elements including a plurality of undulating rings connected by links, wherein each ring includes struts that extend between crowns and the struts are configured to fold at the crowns when the stent is crimped to the balloon.24. The medical device of claim 23 , wherein the pre-crimp diameter is between 6 mm and 12 mm.25. The medical device of claim 23 , wherein the wall thickness is between 0.2 mm and 0.4 mm.26. The medical device of claim 23 , wherein the pre-crimp diameter is between 7 mm and 10 mm and the wall thickness is 0.2 mm.27. The medical device of claim 23 , wherein the pre-crimp diameter is between 9 mm and 10 mm and the wall thickness is 0.3 mm.28. The medical device of claim 23 , wherein a strut and a link each have a width and a thickness claim 23 , and wherein an aspect ratio (AR) of the width to wall thickness of the strut or the link is between 0.8 and 1.4.29. The medical device of claim 23 , wherein a link has a width and a thickness claim 23 , and wherein an aspect ratio (AR) of the width to wall thickness is between 0.4 and 0.9.30. The medical device of claim 23 , wherein each of the rings forms U crowns claim 23 , ...

Hollow product and method of making the product

Disclosed herein is a technique for insert-molding a tubular member to define a hollow portion. A circumferential portion of a circumferential wall of the tubular member is removed to expose the hollow portion to outside.

SHEET CONVEYING ROLLER AND PRODUCTION METHOD THEREOF

The present invention provides a sheet conveying roller, which effectively reduces the amount of paper dust accumulated on its outer peripheral surface to thereby suppress sheet transportation failure. The sheet conveying roller includes a nonporous tubular elastic member (). The elastic member () has a plurality of recesses () or a plurality of through-holes () equidistantly arranged in a center axis (L) direction thereof and equidistantly arranged in a circumferential direction thereof, and each having an opening having a round plan shape in an outer peripheral surface () thereof, wherein the recesses () each have a constant depth as measured thicknesswise of the elastic member (), wherein the through-holes () each extend thicknesswise through the elastic member (). A production method includes forming the elastic member by vulcanizing a rubber composition in a vulcanization mold having projections corresponding to the recesses or the through-holes. 1. A method of producing a sheet conveying roller including a nonporous tubular elastic member having a plurality of columnar recesses in an outer peripheral surface thereof , the method comprising the steps of:providing a vulcanization mold which includes an outer mold and an inner mold,the outer mold being circumferentially dividable into at least two mold pieces, and having a shape-imparting tubular inner surface corresponding to the outer peripheral surface of the elastic member, and a plurality of projections projecting radially inward from the shape-imparting inner surface and each having a sectional shape corresponding to a plan shape of the columnar recesses of the elastic member and a projection height corresponding to a depth of the columnar recesses as measured thicknesswise of the elastic member,the inner mold having a shape-imparting tubular outer surface to be located coaxially with the shape-imparting inner surface so as to be spaced a distance corresponding to a thickness of the elastic member from the ...

DEVICE AND METHOD FOR GUIDING A BLOWN FILM

The invention relates to a guiding device for guiding a blown film between a film blowing die and a take-off roller device, comprising at least two lateral guides located opposite one another for laterally guiding the blown film, wherein at least one lateral guide is provided with a first guide segment and a second guide segment, which are connected to one another in an articulated manner. At least one lever kinematics is provided, which is in drive connection with a drive device, and which is interconnected with the two guide segments such that when the drive device is actuated by way of the lever kinematics, the angles of attack (αa, αe) of the two guide segments to the conveyance direction (F) of the blown film can be varied. 1. Guidance device for guiding a blown film between a film blowing head and a take-off roller device , comprising at least two opposing lateral guidances for the lateral guidance of the blown film characterized in that , at least one lateral guidance comprises a first guidance segment and a second guidance segment , jointly connected to each other , wherein at least one lever kinematics is intended , which comprises a plurality of at least two levers and is in actuation connection with a single common drive device and with both guidance segments in a way , that during actuation the drive device the angles of attack (α , α) of both guidance segments are variable via the lever kinematics towards the conveyance direction (F) of the blown film.2. Guidance device according to claim 1 , characterized in that the drive device comprises at least one slide which is translatory movably mounted and with which the lever kinematics is in gear connection at at least one position claim 1 , particularly at two positions.3. Guidance device according to claim 1 , characterized in that at least a guidance rail is intended claim 1 , in which at least one guidance lever of the lever kinematics is translatory movably mounted.4. Guidance device according to claim ...

Use of semi-aromatic copolyamide for transporting refrigerant fluid

Provided is a method for heating or cooling a liquid or a body by means of a vapor compression circuit containing a heat transfer fluid. The vapor compression circuit element includes at least one layer that includes copolyamide of formula X/10.T/Y, where the structural variables are described herein.

FILM THICKNESS GAUGE BY NEAR-INFRARED HYPERSPECRAL IMAGING

The present teachings include a method of measuring an entire film thickness. The method may include forming a polymeric film () and measuring the thickness of the film () with a camera () collecting spatial and spectral images of a plurality of points at one time. The camera may collect a line image from a line of the film. The camera may be a hyperspectral near-infrared camera. In analyzing raw data collected during the measuring step, fringes of the raw data may be corrected using a classical least squares analysis. 1. A method comprising steps of:a. obtaining a polymeric film, sheet, or plaque; andb. measuring a thickness of the film, sheet, or plaque;wherein the measuring step is performed using a camera collecting both spatial and spectral images of a plurality of points simultaneously.2. The method of claim 1 , wherein the camera collects a line image from a line of the film claim 1 , sheet claim 1 , or plaque.3. The method of claim 1 , wherein the film claim 1 , sheet or plaque has thickness of 2 mm or less.4. The method of claim 1 , wherein the camera collects light having a wavelength of from 780 nm or greater to 2500 nm.5. The method of claim 4 , wherein a light source emitting light having a wavelength of from 780 nm or greater to 2500 nm is positioned on an opposite side of the polymeric film claim 4 , sheet claim 4 , or plaque than the camera.6. The method of claim 5 , further comprising the step:forming the polymeric film using a blown film process.7. The method of claim 6 , wherein the blown film process comprises forming a bubble of film claim 6 , and wherein the measuring step is performed on the bubble to determine the thickness of the film forming the bubble.8. The method of claim 6 , wherein the blown film process comprises collapsing a bubble of film to produce a layflat claim 6 , and wherein the measuring step is performed on the layflat to determine the thickness of the layflat or one or more layers thereof. In general, the present teachings ...

METHOD FOR PROCESSING A HIGH TEMPERATURE RESISTANT THERMOSETTING MATERIAL

The present disclosure provides a polymeric composition resistant to temperatures comprising Poly 2,5rBenzimidazole having intrinsic viscosity (I.V.) between 1.0 and 2.5; and at least one binder having a glass transition temperature less than the glass transition temperature of Poly2,5-Benzimidazole and intrinsic viscosity ranging between 0.2 and 1.5. The present disclosure also provides a process for preparing the polymeric composition resistant to temperatures. 2. The polymeric composition as claimed in claim 1 , wherein the binder is selected from the group consisting of Poly Ether Ketone (PEK) claim 1 , Poly Aryl Ether Ketone (PAEK) claim 1 , Poly Ether Ether Ketone (PEEK) claim 1 , Poly Ether Ketone Ketone (PEKK) claim 1 , Polyphenelene Sulfide (PPS) claim 1 , Polyether Imide (PEI) Poly Ether Sulfones (PES) and Polyphenyl Sulfone (PPSU).3. The polymeric composition as claimed in claim 1 , wherein the binder is selected from the group consisting of Poly Ether Ether Ketone (PEEK) and Poly Ether Sulfone (PES).5. The process as claimed in claim 4 , wherein the binder is at least one compound having a glass transition temperature lower than the glass transition temperature of Poly 2 claim 4 ,5-Benzimidazole.6. The process as claimed in claim 4 , wherein the binder is selected from the group consisting of Poly Ether Ketone (PEK) claim 4 , Poly Aryl Ether Ketone (PAEK) claim 4 , Poly Ether Ether Ketone (PEEK) claim 4 , Poly Ether Ketone Ketone (PEKK) claim 4 , Polyphenelene Sulfide (PPS) claim 4 , Polyether Imide (PEI) Poly Ether Sulfones (PES) and Polyphenyl Sulfone (PPSU).7. The process as claimed in claim 4 , wherein the inherent viscosity (I.V.) of Poly 2 claim 4 ,5-Benzimidazole ranges between 1.0 and 2.5.8. The process as claimed in claim 4 , wherein the inherent viscosity of the binder ranges between 0.2 and 1.5.9. The process as claimed in claim 4 , wherein the ratio of Poly 2 claim 4 ,5-Benzimidazole to the binder ranges from 95:5 and 5:95. The present ...

Cylindrical extruding die and method for producing seamless tube

A method for producing an electrically conductive seamless tube includes (1) preparing an electrically conductive resin composition containing a thermoplastic resin and an electrically conductive filler, (2) preparing a cylindrical extruding die including a cylindrical slit, at least one circumferential distribution channel communicating with the slit and distributing the resin composition that is plasticized in a circumferential direction of the slit, and at least one lead-in path that leads the plasticized resin composition into the circumferential distribution channel, the lead-in path containing a line mixer; (3) introducing the plasticized resin composition into the lead-in path toward the circumferential distribution channel; (4) introducing the plasticized resin composition flowing through the lead-in path into the circumferential distribution channel toward the slit; and (5) introducing the resin composition flowing through the circumferential distribution channel into the slit and extruding the resin composition from an outlet of the slit into a cylindrical shape.

Medical tubes and methods of manufacture

This invention relates to a medical tube comprises an elongate conduit having a first opening, a second opening, a longitudinal axis, a lumen extending between the first opening and the second opening along the longitudinal axis, and a corrugated wall, formed from an extruded material, extending between the first opening and the second opening and surrounding the lumen. The wall is stiffer in a first length of the conduit adjacent the first opening than in a second length of the conduit adjacent the second opening. The variable stiffness of the tube wall can improve the thermal profile of the tube as well as improve drain-back of condensation into a humidifier providing humidified gas to the tube.

METHOD OF EXTRUDING SAUSAGE SLEEVES OF AT LEAST PARTIAL COLLAGEN, EXTRUSION HEAD AND EXTRUDED COLLAGEN SLEEVES

The invention relates to a method of extruding sleeves extruded of collagen for encasing sausages, wherein a collagen fluid is fed to an extrusion head; the collagen fluid is guided through the extrusion head; and the collagen fluid is discharged from the extrusion head. The invention also relates to an extrusion head for performing such a process as well as a co-extrusion sausage line. Finally also the sleeve extruded with this method or devices is part of the invention. 1. Method of extruding sleeves of collagen or a collagen comprising mixture for encasing sausages , comprising the successive method steps:A) feeding a collagen fluid to an extrusion head;B) guiding the collagen fluid through the extrusion head;C) discharging the collagen fluid from the extrusion head;wherein during processing step B) the collagen fluid is transported between two rotatable and co-operating jackets which co-operating jackets are rotated in opposite directions, characterised in that the counter rotating jackets are rotated each with a rotation speed of 150-300 rpm.2. Method according to claim 1 , characterised in that the rotation speed of at least one of the rotating jackets is individually controllable.3. Method according to claim 1 , characterised in that simultaneous with the extrusion of the collagen fluid and from the inside of the co-operating jackets a food dough is extruded and the collagen fluid when being discharged is applied onto the extruded food dough.4. Method according to claim 1 , characterised in that the collagen fluid when being discharged is applied onto a core.5. Method according to claim 1 , characterised in that at least one of the collagen fluid guiding jackets is interchanged for an alternative collagen fluid guiding jacket claim 1 , which interchanged jackets have contact surfaces to the collagen with different properties.6. Extrusion head for sleeves of collagen or a collagen comprising mixture for encasing sausages claim 1 , comprising:a collagen fluid ...

COMPONENTS FOR BREATHING CIRCUITS

A breathing circuit component includes an inlet, an outlet and an enclosing wall. The enclosing wall defines a gases passageway between the inlet and the outlet. At least a region of the enclosing wall is formed from a breathable material that allows the passage of water vapor without allowing the passage of liquid water or respiratory gases. The breathing circuit component may be the expiratory limb of a breathing circuit. 1. An expiratory limb for a breathing circuit comprising:an inlet configured to connect to, and receive a flow of expiratory gases from, a patient interface component,an outlet configured to connect to, and deliver the flow of expiratory gases to, other equipment, andan enclosing wall defining a flexible singular expiratory flow passage between the inlet and the outlet and bounding the flexible singular expiratory flow passage and ambient air,wherein at least a region of the enclosing wall is of a material that allows passage of water vapor without allowing passage of liquid water, thereby forming a water vapor flow path from the flexible singular exhalation flow passage to the ambient air through the material,wherein the region is or regions are distributed over the length of the enclosing wall, such that the expiratory limb is configured to allow diffusion of water vapor along the flexible singular expiratory flow passage and dry the flow of expiratory gases between the inlet and the outlet.2. The expiratory limb of claim 1 , wherein the other equipment comprises a filter or a ventilator.3. The expiratory limb of claim 1 , wherein the enclosing wall is extruded as a continuous tube.4. The expiratory limb of claim 3 , wherein the enclosing wall comprises a longitudinal seam.5. The expiratory limb of claim 3 , wherein the entire enclosing wall is of the material that allows passage of water vapor without allowing passage of liquid water.6. The expiratory limb of claim 1 , wherein the enclosing wall comprises a plurality of annular corrugations.7. ...

FABRIC AND DIE DESIGN FOR DIVIDED CONDUIT

A method of forming a conduit having at least one strip-shaped fabric substrate dividing the conduit into channels. The method contains obtaining an extrusion die configured to form the wall of the conduit and a slot configured for receipt of a strip-shaped fabric substrate and introducing a strip-shaped fabric substrate into the slot. The strip-shaped textile is air permeable and contains enlarged regions at the first and second longitudinal edges. Molten polymer is introduced at a first point in the extrusion die and at the first point the slot and the area configured to form the wall of the conduit are not in communication. The slot is exposed to the molten polymer at a point between the first point and the die exit forming the first polymeric layer of the conduit such that the first longitudinal and second longitudinal edges of the strip-shaped fabric substrate embed into the molten polymer. 1. A method of forming a conduit having at least one strip-shaped fabric substrate dividing the conduit into channels , the method comprising:obtaining an extrusion die having an exit and defining a flow direction for polymeric material forming the conduit, wherein the die comprises an area configured to form the wall of the conduit and a slot having a thickness, a width, a first edge, and a second edge, wherein the slot configured for receipt of a strip-shaped fabric substrate, wherein the slot extends in the flow direction along the extrusion die, wherein the thickness of the slot varies along the width of the slot, wherein the thickness of the slot is greatest at the first edge and second edge of the slot;introducing a strip-shaped fabric substrate into the slot, wherein the strip-shaped fabric substrate comprises a first longitudinal edge and a second longitudinal edge, wherein the strip-shaped textile is selected from the group consisting of a woven, non-woven, and knit, wherein the strip-shaped textile is air permeable, and wherein the strip-shaped fabric substrate ...

Flexible Pipe with Corrosion Resistant Layer

The present techniques are directed to a flexible pipe. An inner carcass layer forms the innermost layer of the flexible pipe. An inner sheath layer and an outer sheath layer are disposed externally of the inner carcass layer. A layer of corrosion resistant alloy is disposed at any location between the inner carcass layer and the outer sheath layer. At least one armor layer is disposed internally of the outer sheath layer. 1. A flexible pipe , comprisingan inner carcass layer;an inner sheath layer and an outer sheath layer disposed externally of the inner carcass layer and comprising a polymer material;a layer of corrosion resistant alloy, wherein the layer is disposed at any location between the inner carcass layer and the outer sheath layer; andat least one armor layer disposed internally of the outer sheath layer.2. The flexible pipe of claim 1 , wherein the layer of corrosion resistant alloy is disposed internally of the inner sheath layer.3. The flexible pipe of claim 1 , wherein the layer of corrosion resistant alloy is disposed externally of the inner sheath layer and internally of the at least one armor layer.4. The flexible pipe of claim 1 , wherein the layer of corrosion resistant alloy is disposed externally of the at least one armor layer and internally of the outer sheath layer.5. The flexible pipe of claim 1 , wherein the layer of corrosion resistant alloy is disposed directly adjacent to the inner sheath layer.6. The flexible pipe of claim 1 , wherein a plurality of layers of corrosion resistant alloy are disposed at any location between the inner carcass layer and the outer sheath layer.7. The flexible pipe of claim 6 , wherein the plurality of layers of corrosion resistant alloy includes one layer of corrosion resistant alloy disposed directly adjacent the outer sheath layer and another layer of corrosion resistant alloy disposed directly adjacent the inner sheath layer.8. The flexible pipe of claim 7 , wherein the layer of corrosion resistant alloy ...

TUBULAR FIBER ARRANGEMENT OF A FIBER-REINFORCED COMPOSITE PART

In the production of a tubular fiber arrangement as an intermediate product for a composite part, the local conditions are taken into account in an especially simple and reliable manner with respect to the geometry of the composite part and its load profile. When forming the composite part on a core, the fiber mass supplied during the formation of the tube is proportional to the local circumference of the composite part which results from the diameter. The advancement speed of the core remains substantially constant. 1a tubular fiber arrangement forming an intermediate product for a fiber-reinforced composite part having a variable cross-section along a length thereof, wherein said tubular fiber arrangement is formed on a core having a shape corresponding to the composite part;a fiber mass of said tubular fiber arrangement in a cross section of the core being proportional to a local circumference resulting from a diameter of the core; andwherein an alignment of the fibers in the tubular fiber arrangement is largely constant, irrespective of the local circumference of the core.. An article of manufacture, comprising: This application is a divisional application of Ser. No. 13/945,069, filed Jul. 18, 2013, which was a continuation, under 35 U.S.C. §120, of copending international application No. PCT/EP2012/050650, filed Jan. 17, 2012, which designated the United States; this application also claims the priority, under 35 U.S.C. §119, of German patent application No. DE 10 2011 002 840.4, filed Jan. 18, 2011; the prior applications are herewith incorporated by reference in their entirety.The present invention relates to a method for producing a tubular fiber arrangement as an intermediate product for a fiber-reinforced composite part. The tubular fiber arrangement has a cross-sectional shape that changes along its length.Fiber-reinforced composite parts have been gaining increasing popularity because, as compared to conventional components, they have a comparatively ...

PRESSURE STABILIZER

Herein is described a pressure resistant shell for stabilizing a welding seam of a weldable tubing as well as a method of using it. 1. A pressure resistant shell for stabilizing a welding seam of a weldable tubing , whereina) the pressures resistant shell comprises either at least two components wherein one component comprises a groove and the other an elevation which fits the groove wherein one of said at least two components is manufactured from plastic or glass orb) the pressure resistant shell comprises at least one BarbLock® that secures a welding seam of a weldable tubing.2. The shell according to wherein the weldable tubing is an aseptically weldable tubing.3. The shell according to wherein the weldable tubing and/or an aseptically weldable tubing is used at a pressure of between 0-5 bar claim 1 , optionally 2 claim 1 ,5-3 claim 1 ,5 bar claim 1 , optionally 2 claim 1 ,8 bar.4. The shell according to wherein the weldable tubing and/or an aseptically weldable tubing further comprising at least one spring encasing 90-100% of the tubing when the spring is relaxed and 50-95% of the tubing when the spring is compressed.5. The pressure resistant shell according to claim 1 , whereina) the pressure resistant shell comprises at least two components wherein one component comprises a groove and the other an elevation which fits the groove.6. The pressure resistant shell according to claim 1 , wherein the pressure resistant shell comprises at least two components wherein one component comprises a groove and the other an elevation which fits the groove wherein one of said at least two components is manufactured from plastic or glass.7. The pressure resistant shell for use according to claim 1 , wherein the pressure resistant shell comprises at least one BarbLock® device that secures a welding seam of a weldable tubing.8. A system for continuous production of a protein of interest wherein the system is a production system that comprises at least one aseptically weldable ...

FLUID HOSE AND METHOD OF MAKING THE SAME

According to one aspect, the present disclosure includes a fluid hose. The fluid hose may include an inner liner, a reinforcement layer located radially outside of the inner liner, and a cover. The reinforcement layer including one or more preformed ribbons having a plurality of wires formed in a strip of cushioning material. 1. A fluid hose , comprising:an inner liner;a reinforcement layer located radially outside of the inner liner; anda cover;the reinforcement layer including one or more preformed ribbons having a plurality of wires formed in a strip of cushioning material.2. The fluid hose of claim 1 , wherein the plurality of wires are generally evenly spaced apart from each other.3. The fluid hose of claim 2 , wherein the ribbon has a longitudinal edge claim 2 , and the plurality of wires are generally parallel to each other and generally parallel to the longitudinal edge of the ribbon.4. The fluid hose of claim 3 , wherein the plurality of wires are completely encased within the strip of cushioning material.5. The fluid hose of claim 3 , wherein the plurality of wires are exposed at a surface of the strip of cushioning material.6. The fluid hose of claim 3 , wherein the wires are formed of steel claim 3 , and the cushioning material is formed of a synthetic rubber.7. The fluid hose of claim 6 , wherein the wires and cushioning material are cured together prior to joining with the hose.8. The fluid hose of claim 3 , wherein the reinforcement layer includes a plurality of helically wound ribbons arranged side-to-side.9. The fluid hose of claim 8 , wherein the reinforcement layer includes multiple layers claim 8 , each formed of a plurality of helically wound ribbons arranged side-to-side.10. The fluid hose of claim 9 , wherein the multiple layers includes one layer arranged in a clockwise direction claim 9 , and another layer arranged in a counterclockwise direction.11. A ribbon for use in forming a hydraulic hose claim 9 , comprising:a plurality of wires; anda ...

Method of Positioning a Braided Fibre Sleeve

A method of positioning a braided fibre sleeve relative to a tool surface, the braided fibre sleeve comprising a longitudinal axis and biaxially oriented tows arranged at acute angles relative to the longitudinal axis, the method comprising; applying tension to a plurality of axial threads disposed along the longitudinal axis, such tension forming a tensioned braided fibre sleeve; positioning the tensioned braided fibre sleeve relative to a tool surface; and releasing tension on the plurality of axial threads.

Method and Apparatus for Extracting Columns from Molds

A column or other elongate molded part is molded using an elongate tubular mold having a closed end, an open end and a flexible sidewall. After the column or other molded part is formed, it is extracted from the mold by pulling the column or other molded part axially through the open end of the mold. The column may be extracted using an expandable plug or gripper that is inserted into the interior of the column or other molded part through the open end of the mold. The expandable plug or gripper is expanded to engage an inner surface of the elongate molded part. 1. A method for extracting an elongate molded part from a mold that is open at one end , said method comprising:inserting a gripping tool into the elongate molded part through the open end of the mold;expanding the gripping tool to grip an inner surface of the elongate molded part; andapplying an axial force to the gripping tool to pull the molded part through the open end of the mold.2. The method of wherein the gripping tool comprises an expandable plug with a flexible sidewall and wherein expanding the gripping tool comprises supplying pressurized gas to an interior of the expandable plug to expand a flexible sidewall of the plug.3. The method of further comprising directing a pressurized gas through the plug into the interior of the elongate molded part before pulling the molded part from the mold.4. The method of wherein the gripping tool comprises two or more wing member pivotally connected to a shaft and wherein expanding the gripping tool comprises pivoting the wing members away from the shaft to expand the wing members.5. The method of wherein the gripping tool comprises a wedge body and expansion member for receiving the wedge body claim 1 , and wherein expanding the gripping tool comprises moving the wedge body into the expansion member to expand exterior sides of the expansion member out to the elongate molded part.6. The method of claim 5 , wherein the exterior sides are made of a flexible ...

Bistable Collapsible Tubular Mast Boom

Various embodiments provide for bistable collapsible tubular mast (Bi-CTM) booms. Various embodiments provide CTM booms that may be bistable in nature, thereby achieving intrinsic benefits bistability may bring. Bistability may be achieved in various embodiments through specific combinations of the thin-shell cross-section geometry and the composite laminate selected for each thin-shell segment. Additionally, in various embodiments, the thin-shell geometry of each boom half may be different. Various embodiments may include combinations of circular, ellipsoidal, or parabolic segments that form each shell.

MOLD FOR MAKING SOUND-ABSORBING DUCT AND SOUND-ABSORBING DUCT USING THE SAME

A mold for manufacturing a sound-absorbing duct, may include an inner mold made of an elastic material and having a channel therein, a sound-absorbing pad disposed outside the inner mold, and an outer mold disposed outside the sound-absorbing pad and having at least one first injection groove on an inner circumferential surface thereof. 1. A mold for manufacturing a sound-absorbing duct , comprising:an inner mold made of an elastic material and having a channel therein;a sound-absorbing pad disposed outside the inner mold; andan outer mold disposed outside the sound-absorbing pad and having at least one first injection groove on an inner circumferential surface thereof.2. The mold of claim 1 , wherein an air gate for gas inflow is formed at the inner mold.3. The mold of claim 1 , wherein the inner mold is made of silicon rubber claim 1 , fluorine rubber claim 1 , or AEM claim 1 , or one of combinations thereof.4. The mold of claim 1 , wherein the sound-absorbing pad includes polypropylene fiber.5. The mold of claim 1 , wherein the outer mold is made of metal.6. The mold of claim 1 ,wherein a guide mold made of metal is further disposed on an outer circumferential surface of the inner mold, andwherein a second injection groove is formed on the outer circumferential surface of the guide mold.7. A sound-absorbing duct manufactured by the mold for manufacturing a sound-absorbing duct of . The present application claims priority to Korean Patent Application No. 10-2013-0115196 filed on Sep. 27, 2013, the entire contents of which is incorporated herein for all purposes by this reference.1. Field of the InventionThe present invention relates to a mold for manufacturing an sound-absorbing duct and a sound-absorbing duct using the same. More particularly, the present invention relates to a mold for manufacturing an sound-absorbing duct that can reduce noise generated in the process of sucking external air flowing into an engine, and an sound-absorbing duct using the mold.2. ...

Cured-In-Place Liner Material And Methods and Systems for Manufacture

A liner tube for repairing existing pipes is provided. The liner tube is sufficiently flexible to lie substantially flat under its own weight thereby defining an upper portion and a lower portion. The liner tube includes an inner layer, an outer layer disposed around the inner layer, a first intermediate layer disposed between the inner layer and the outer layer, the first intermediate layer being wrapped around the inner layer to overlap itself and define a first overlap portion in the upper portion, and a second intermediate layer disposed between the first intermediate layer and the outer layer, the second intermediate layer being wrapped around the first intermediate layer to overlap itself and define a second overlap portion in the lower portion. The first and second intermediate layers include a porous material and the inner layer includes material substantially impermeable to liquids.

Method of making an inline housing for a part enclosed in a tube

A method is disclosed for making a duct assembly including an internal component part such as a silencer is disclosed. The duct assembly may be made in a blow-molding operation in which first and second duct parts are formed from a single parison as a combined part that is then split apart to receive a component part in a housing and subsequently closed by a closure part. Alternatively, the first and second housing parts may be separately formed and a component part may be inserted into a housing defined by one or both of the first and second duct parts. The first and second duct parts may be joined and sealed by injection molding a ring over telescopically assembled ends of the first and second parts.