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Небесная энциклопедия

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

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Мониторинг СМИ

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

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11-03-2021 дата публикации

Обдирная головка мозаично-шлифовальной машины

Номер: RU0000202864U1
Автор: Азизбек Арсенович Петросян, Александр Алексеевич Дайлов
Принадлежит: Азизбек Арсенович Петросян, Александр Алексеевич Дайлов

Полезная модель относится к обработке материалов резанием и может быть использована для обработки плоских твердокаменных или бетонных поверхностей. Обдирная головка мозаично-шлифовальной машины содержит секторы с осями их орбитального вращения в горизонтальной плоскости, каждый из которых выполнен с посадочным узлом для закрепления сменного инструмента с абразивным материалом, расположенным на нижней плоской рабочей поверхности. Каждый сменный инструмент выполнен в виде плашки круглой формы с возможностью центрального осевого крепления к указанному посадочному узлу сектора. При этом в качестве абразивного материала использован крупнокристаллический абразивный материал с высотой зерна 3,0-6,0 мм и плотностью равномерного покрытия рабочей поверхности от 5 до 15%. Верхняя сторона плашки, предназначенная для прижатия к посадочному узлу сектора головки, выполнена с выступающим над плоскостью плашки опорным буртиком и фиксаторами непроворота плашки в посадочном узле сектора головки. Снижается износ и нагрев инструмента, увеличивается производительность обработки. 2 з.п. ф-лы, 7 ил. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 202 864 U1 (51) МПК B24B 7/18 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (52) СПК B24B 7/18 (2021.01) (21)(22) Заявка: 2019103125, 04.02.2019 (24) Дата начала отсчета срока действия патента: (73) Патентообладатель(и): Дайлов Александр Алексеевич (RU), Петросян Азизбек Арсенович (RU) Дата регистрации: 11.03.2021 (45) Опубликовано: 11.03.2021 Бюл. № 8 2 0 2 8 6 4 R U (54) ОБДИРНАЯ ГОЛОВКА МОЗАИЧНО-ШЛИФОВАЛЬНОЙ МАШИНЫ (57) Реферат: Полезная модель относится к обработке к указанному посадочному узлу сектора. При материалов резанием и может быть использована этом в качестве абразивного материала для обработки плоских твердокаменных или использован крупнокристаллический абразивный бетонных поверхностей. Обдирная головка материал с высотой зерна 3,0-6,0 мм и плотностью мозаично-шлифовальной машины ...

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Номер записи: 1
21-06-2012 дата публикации

Method and tool for maintenance of hard surfaces, and a method for manufacturing such a tool

Номер: US20120156971A1
Автор: Hakan Thysell
Принадлежит: HTC Sweden AB

A method is disclosed for maintaining a hard surface, the method comprising treating of the surface with a flexible pad ( 1 ), in the presence of abrasive particles, bonded to the pad, on a contact surface between the pad ( 1 ) and the hard surface. The abrasive particles comprise diamond particles, and the treating is performed in the absence of an effective amount of crystallization agent on the contact surface. A tool for use in the method is also provided, as well as a floor surfacing machine comprising such a tool and a method for manufacturing such a tool.

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Номер записи: 2
15-11-2012 дата публикации

Method of manufacturing roller

Номер: US20120285018A1
Автор: Kohei Higashi, Satoshi Sugitatsu
Принадлежит: NTN Corp

A workpiece is fixed by a retracting mechanical chuck mounted on a spindle head of a five-axis control machining center. The apparent outer diameter of the workpiece is increased by a jig. Clamp surfaces of the jaws and a support surface of the jig are formed on the machining center. A cutting tool is mounted on a spindle by an automatic tool exchanger. The workpiece is rotated about an axis to grind an end surface of the workpiece to approximately a predetermined target shape, which is a spherical surface. A grinder is then mounted on the spindle by the automatic tool exchanger, and the grinder is set relative to the workpiece by five-axis control such that the inclination angle, the offset amount, etc. satisfy a predetermined relationship according to the desired grinding. The grinder is then fed in the Z-axis direction to form the spherical surface by grinding.

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Номер записи: 3
20-12-2012 дата публикации

Cordless drywall sander

Номер: US20120322350A1
Автор: Robert Schywalsky
Принадлежит: Individual

One embodiment of an adjustable dry wall sander comprises a handle ( 40 ), a pole ( 11 ), a portable, rechargeable electric power source ( 50 ) powering a vibrating eccentrically weighted electric motor ( 21 ) and interchangeable sanding head ( 30 ).

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Номер записи: 4
02-05-2013 дата публикации

METHODS AND SYSTEMS FOR MARRING FIBER OPTIC SUBSTRATES

Номер: US20130109280A1
Автор: Larson David B., Spahnie Brian M.
Принадлежит:

A method of marring a fiber optic substrate by supporting a length of the substrate on a tapered surface of an elongate support and causing relative movement between at least one roller and the support lengthwise of the support with the roller pressing the substrate against the tapered surface and the roller rolling along the substrate. At least one of the roller and the support include an abrasive surface for marring the substrate during such relative movement therebetween. 1. A method of marring a fiber optic substrate comprising supporting a length of the substrate on a tapered surface of an elongate support , and causing relative movement between at least one roller and the support lengthwise of the support with the roller pressing the substrate against the tapered surface and the roller rolling along the substrate , at least one of the roller and the support having or supporting an abrasive surface for marring the substrate during such relative lengthwise movement between the roller and the support with the roller in rolling engagement with the substrate.2. The method of wherein the roller is movable toward and away from the support for releasably pressing the substrate against the tapered surface during relative lengthwise movement between the roller and the support to produce a marring pattern on the substrate.3. The method of wherein the pressure between the roller and the tapered surface of the support is varied during relative lengthwise movement between the roller and the support for varying the marring pattern.4. The method of wherein the roller is covered with different amounts and sizes of abrasive material to provide the abrasive surface on the roller.5. The method of wherein relative movement is caused between a plurality of rollers and the support lengthwise of the support while the rollers selectively press the substrate against the tapered surface of the support and roll along the substrate.6. The method of wherein at least some of the rollers ...

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Номер записи: 5
06-06-2013 дата публикации

DUAL WHEEL GRINDER FOR METAL WORKPIECE

Номер: US20130143475A1
Автор: Schiller Guenter
Принадлежит:

The invention relates to a polishing device () for polishing a metal product (), in particular a continuously cast slab, billet, or block. The aim of the invention is to achieve a high polishing rate when said metal products are polished. According to the invention, this is achieved in that the polishing device () has at least two polishing assemblies (), each polishing assembly () having a mounting () for a polishing unit (). A polishing unit has at least one polishing disk () and a driving motor () that drives the polishing disk (). The polishing disks () are arranged such that the rotational axes (A, B) of said disks run parallel to each other. 110-. (canceled)11. An apparatus for grinding a cast metal workpiece , the apparatus comprising:a pair of adjacent mounts;respective grinding wheels immediately adjacent each other and mounted on the mounts for rotation about respective axes that are horizontal, parallel, and offset; anddrive means for rotating the wheels about the respective axes when engaging the workpiece.12. The grinding apparatus defined in claim 11 , wherein each mount is pivotal about an axis that is parallel to the rotation axis of the respective grinding wheel and is offset therefrom.13. The grinding apparatus defined in claim 12 , further comprising:means for varying an offset between the pivot axes of the mounts and the rotation axes of the respective grinding wheels.14. The grinding apparatus defined in claim 13 , wherein the means for varying is an eccentric.15. The grinding apparatus defined in claim 11 , wherein each mount comprises a linear guide on which the grinding wheel can be displaced perpendicular to the rotation axis of the grinding wheel.16. The grinding apparatus defined in claim 11 , further comprising:respective biasing means for pressing the grinding wheels against the metal workpiece with a predetermined force.17. The grinding apparatus defined in claim 16 , wherein the biasing means includes a cylinder-piston system.18. The ...

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Номер записи: 6
27-06-2013 дата публикации

COMPUTER NUMERICAL CONTROL MACHINE TOOL FOR GRINDING TWO SIDES OF A PLANE BY SHIFTING SELF-ROTATION AND ULTRASONIC VIBRATION

Номер: US20130165019A1
Автор: Gao Feng, Huang Yumei, Jiang Hao, Yan Wen
Принадлежит: XI'AN University of TTechnology

A computer numerical control machine tool for grinding two sides of a plane by shifting self-rotation ultrasonic vibration, wherein a pillar () is provided on the tool body () of the machine tool, a Y axis movement assembly () is provided on the platform of the tool body (), with a lower revolving movement assembly (), which revolves about a Z coordinate axis, being mounted on the upper surface of the Y axis movement assembly (), and a lower grinding plate () being mounted coaxially above the lower revolving movement assembly (); an ultrasonic vibration assembly () is mounted fixedly on the pillar (), with a separation plate () for clamping a workpiece assembly () being provided on the ultrasonic vibration assembly (); an X axis movement assembly () is mounted on the upper part of the pillar (), a Z axis movement assembly () is mounted on the upright face of the X axis movement assembly (), with an upper revolving movement assembly (), which revolves about the Z coordinate axis, being provided on the Z axis movement assembly (), and an upper grinding plate () being mounted coaxially on the revolving axis of the upper revolving movement assembly (). The present invention enhances the time variation of grinding movement tracks, the uniformity of grinding speed distribution, machining efficiency and machining precision. 131121111210112389243546576. A computer numerical control machine tool for grinding two sides of a plane by shifting self-rotation and ultrasonic vibration , being characterized in that a pillar () is provided on a tool body () of the machine tool , a Y axis movement assembly () is provided on a platform of the tool body () , with a lower revolving movement assembly () , which revolves about a coordinate axis Z , being mounted on an upper surface of the Y axis movement assembly () , and a lower grinding plate () is mounted coaxially above the lower revolving movement assembly (); an ultrasonic vibration assembly () is fixedly mounted on the pillar () , ...

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Номер записи: 7
11-07-2013 дата публикации

Grinding Tool for the Simultaneous Sanding and Polishing of Floors

Номер: US20130178137A1
Автор: Beisteiner Hermann, Puchegger Alfred
Принадлежит: PUCHEGGER PARKETT GROSS U. EINZELHANDLE GES. M.B.H.

A grinding tool carrier () having substantially circular grinding discs (), on which an abrasive covering is detachably secured, wherein chip-removing cutters () are arranged on the grinding tool carrier () and between the grinding discs (). 1. A grinding tool carrier having substantially circular grinding discs , on which an abrasive covering is detachably secured , wherein chip-removing cutters are arranged on the grinding tool carrier and between the grinding discs.2. The grinding tool carrier according to claim 1 , wherein the cutters are hard-metal indexing plates.3. The grinding tool carrier according to claim 1 , wherein Five grinding discs and five cutters are arranged on the grinding tool carrier.4. The grinding tool carrier according to claim 1 , wherein the grinding discs are coated with a medium wherein the abrasive covering can be detachably secured claim 1 , and this medium is one of two surfaces of a hook-and-loop closure.5. The grinding tool carrier according to claim 1 , having abrasive coverings for securing it to grinding discs claim 1 , which abrasive coverings comprise substantially circular-disc-shaped sandpapers that are coated claim 1 , on their side facing away from the abrasive medium claim 1 , with a medium for detachably securing them to grinding discs claim 1 , wherein selected paper thickness of the sandpapers is such that the height of the abrasive coverings is adjustable in proportion to the height of the cutters.6. The grinding tool carrier according to claim 5 , wherein the paper thicknesses depend on the particle size of the abrasive medium.7. The grinding tool carrier according to claim 4 , wherein at least one piece of sandpaper is firmly joined claim 4 , on the side facing away from the abrasive medium claim 4 , to a felt claim 4 , and the felt is in turn firmly joined to one surface of a hook-and-loop closure.8. A floor sander having a grinding tool carrier according to . The invention relates to a grinding tool carrier having ...

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Номер записи: 8
18-07-2013 дата публикации

Grinding Ring with Dual Function Grinding Segments

Номер: US20130183891A1
Автор: Holger Lenkeit, Ignazio Gosamo
Принадлежит: Saint Gobain Abrasifs SA, Saint Gobain Abrasives Inc

An abrasive article is disclosed and can include a base. At least one dual function grinding segment can be mounted on the base. The dual function grinding segment can include a working surface having an average slope, S WS , relative to a rotation plane and a finishing surface having an average slope relative to the plane rotation, S FS , and wherein S WS is greater than S FS .

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Номер записи: 9
25-07-2013 дата публикации

Edger Resurfacing Machine

Номер: US20130189908A1
Автор: Seth Kacur, Timothy A. Strickland
Принадлежит: OnFloor Tech LLC

An edger machine for treating a floor and other surfaces has a housing with a motor and a deck. The motor has a drive shaft extending into an upper deck section of the deck. A pulley is positioned forward of the drive shaft, and a drive belt connects the drive shaft to the pulley. The pulley is constructed to mount a resurfacing disc in a lower deck section of the deck. A pair of guide wheels is mounted on an upper surface of the lower deck section adjacent the upper deck section. The guide wheels are rotatable about a vertical axis and positioned such that the wheels can roll against a vertical surface.

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Номер записи: 10
29-08-2013 дата публикации

Abrasive pad assembly

Номер: US20130225051A1
Автор: Raymond Vankouwenberg
Принадлежит: Individual

An abrasive pad assembly, for use with a surfacing machine, includes a circular pad member and a diamond abrasive member. The circular pad member includes an exterior surface and the diamond abrasive member is affixed to the exterior surface of the circular pad member. The diamond abrasive member includes an insert and a diamond abrasive material. The insert has a first surface affixed to the exterior surface of the circular pad member. The diamond abrasive material is a polycrystalline diamond substance that is affixed to the second surface of the insert. The polycrystalline diamond material is spaced apart from the exterior surface of the circular pad member.

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Номер записи: 11
03-10-2013 дата публикации

Process for preparing tea products

Номер: US20130260005A1
Автор: Reshmee Mukhopadhyay, Vadivel Govindaswamy, Venkatraj Venkatrao Narayanan
Принадлежит: Conopco Inc

The present invention relates to a process which allows for the preparation of tea products comprising tea juice which are suitable for diluting to prepare beverages. The present inventors have identified that generation of carbon dioxide during the storage of tea juice in containers can cause problems. It is an object of the present invention to provide a packaged tea juice in a stable form. The present inventors have now surprisingly found that reducing pH of the juice leads to a reduction in CO 2 generation during storage.

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Номер записи: 12
14-11-2013 дата публикации

GRINDING MACHINE FOR THE GRINDING OF SPRING ENDS

Номер: US20130303058A1
Автор: Mahler John Ian, Manners Keith, Walker Kevin
Принадлежит:

A grinding machine for grinding an end of a spring, the machine comprising a fixed spring mounting, which is fixable in a known position in the machine, for a spring or springs and a grinding surface secured to a support structure and arranged with the support structure to relatively oscillate to and fro along an oscillation path or cycle across one end of the mounting. 1. A grinding machine for grinding an end of a spring , the machine comprising a fixed spring mounting , which is fixable in a known position in the machine , for a spring or springs and a grinding surface secured to a support structure and arranged within the support structure to relatively oscillate to and fro along a guided oscillation path or cycle across one end of the spring mounting with the grinding surface for continuous contact in use with at least one end of one spring and means to advance the continuous contact to flatten each end of the spring or springs to the grinding surface.2. A machine as claimed in wherein the grinding surface is arranged in use to be reciprocating laterally across the end of the mounting.3. A machine as claimed in wherein the grinding surface rotates in use on a shaft.4. (canceled)5. A machine as claimed in wherein a shaft or presenter for the grinding surface extends through a partition to isolate the mounting from a grinding drive mechanism for the grinding surface and/or an oscillation drive mechanism for the support structure to drive the grinding surface along the oscillation path.6. A machine as claimed in wherein the shaft or presenter extends thorough a seal such as a bellow boot and/or a baffle seal associated with the partition.7. (canceled)8. A machine as claimed in wherein the partition is a wall between separate compartments of the machine.9. A machine as claimed in wherein the oscillation path or cycle is lateral and/or horizontal and/or vertical and/or angled from one end of the path.10. A machine as claimed in wherein the oscillation path or cycle ...

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Номер записи: 13
05-12-2013 дата публикации

Diamond impregnated polishing pad with diamond pucks

Номер: US20130324021A1
Автор: Webster Ryan
Принадлежит: Individual

An abrasive pad for use on hard surfaces is described. The pad includes a fibrous, non-woven body with an abrasive coating containing diamond particles applied to a first side thereof. A plurality of diamond-impregnated abrasive elements is affixed to the first side. One or more of the abrasive elements are located near an outer edge of the first side of the pad. A resilient reinforcing material is applied to the outer edge of the pad to resist compression of the pad and to maintain adjacent abrasive elements parallel to a surface being worked on. The abrasive elements at least partially recess into the pad body and enable simultaneous contact of the abrasive elements and the pad with the surface being worked on. Thereby, multiple surface-preparation steps, e.g. polishing and burnishing, are completed simultaneously reducing surface-preparation time and eliminating separate surface-preparation steps.

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Номер записи: 14
10-04-2014 дата публикации

MOTORIZED HANDHELD POLISHING AND CLEANING APPARATUS

Номер: US20140096796A1
Автор: Frum Hanan
Принадлежит:

A motorized lightweight handheld polishing and cleaning apparatus used to clean and polish large and hard to access surfaces and a motorized method for cleaning and polishing large and hard to access surfaces are disclosed. The motorized lightweight handheld polishing and cleaning apparatus includes (a) a body, further comprising a motor used to rotate a cleaning disk, (b) a cleaning disk attached to a rotary axis of a vertical gear of said motor and (c) at least one handle. 1. A motorized lightweight handheld polishing and cleaning apparatus used to clean and polish large and hard to access surfaces , the apparatus comprising:a body, further comprising a motor used to rotate a cleaning disk;a cleaning disk operationally attached to a rotary axis of a vertical gear of said motor; andat least one handle.2. The motorized lightweight handheld polishing and cleaning apparatus according to claim 1 , comprising further a multi-layer cleaning pad claim 1 , wherein said multi-layer cleaning pad comprises a plurality of pads stacked together enabling removal of an outer worn out pad thereby revealing a fresh pad.3. The motorized lightweight handheld polishing and cleaning apparatus according to claim 2 , wherein said multi-layer cleaning pad is provided with an exterior release tabs for releasing the exterior layers and an interior release tabs for releasing the interior layers.4. The motorized lightweight handheld polishing and cleaning apparatus according to claim 2 , wherein said multi-layer cleaning pad is washable and intended for repeated multiple usages.5. The motorized lightweight handheld polishing and cleaning apparatus according to claim 2 , wherein said multi-layer cleaning pad comprises further a brush.6. The motorized lightweight handheld polishing and cleaning apparatus according to claim 2 , wherein said multi-layer cleaning pad is disposable and is constructed from degrading materials aimed for one time use7. The motorized lightweight handheld polishing and ...

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Номер записи: 15
06-01-2022 дата публикации

RELEASABLE TOOL ATTACHMENT MEANS FOR POWER TROWELS

Номер: US20220001515A1
Автор: Nijs Tristan, Renneson Martin, Tchakarov Tchavdar
Принадлежит:

A tool driver for a power trowel, the tool driver comprising a combination of a magnetic fastening arrangement and a friction based fastening arrangement for releasably holding an abrasive tool to the tool driver, wherein the magnetic fastening arrangement is configured symmetrically around a rotational center of the tool driver, wherein the friction based fastening arrangement is adapted to provide increased shear strength during abrasive operation of the tool, and wherein the magnetic fastening arrangement is adapted to provide increased pull strength during lifting of the tool driver. 1. A tool driver for a power trowel , the tool driver comprising a combination of a magnetic fastening arrangement and a friction based fastening arrangement for releasably holding an abrasive tool to the tool driver , wherein the magnetic fastening arrangement is configured symmetrically around a rotational center of the tool driver , wherein the friction based fastening arrangement is adapted to provide increased shear strength during abrasive operation of the tool , and wherein the magnetic fastening arrangement is adapted to provide increased pull strength during lifting of the tool driver.2. The tool driver according to claim 1 , wherein the friction based fastening arrangement comprises a tool driver surface with protrusions configured to engage with a yielding surface material on the abrasive tool to provide the increased shear strength.3. The tool driver according to claim 1 , wherein the friction based fastening arrangement comprises a material with hooks for holding respective loops on the abrasive tool or wherein the friction based fastening arrangement comprises a material with loops for holding respective hooks on the abrasive tool.4. The tool driver according to claim 2 , wherein the yielding surface material or the material with loops is a felt-like cloth claim 2 , a fibrous material claim 2 , a foam claim 2 , rubber claim 2 , and/or a non-synthetic material.5. The ...

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Номер записи: 16
07-01-2021 дата публикации

VALVE MOUNT FOR SHOT BLASTER PLENUM VALVE

Номер: US20210001449A1
Автор: ANDERSON Mark D., Kivisto John A.
Принадлежит:

The adverse effects associated with high temperatures and warpage of parts of a shot blaster are ameliorated by providing a telescoping sleeve and valve mount and an orifice adaptor to regulate the area of the flow path from a shot reservoir to a metering valve. 1. A shot blaster comprising:a. a reservoir comprising a bottom wall having a bottom orifice, said reservoir adapted to contain a supply of shot;b. a blast wheel housing comprising a wall having an inner surface and a wall opening, said blast wheel housing adapted to contain a blast wheel; and i. a sleeve comprising a first channel extending between a first open end and a second open end, said second open end surrounded by a sleeve flange adapted to engage an area of the wall of the blast wheel housing surrounding the wall opening;', 'ii. a valve mount having a second channel defined by a conduit having a top section surrounding a top opening and a bottom section surrounding a bottom opening, a conduit flange extending from the top section surrounding the top opening, said conduit flange adapted to be selectively positioned and coupled to the bottom wall of the reservoir about the bottom orifice, wherein the bottom section is adapted to be coupled to the sleeve by inserting the bottom section into the first channel through the first open end of the sleeve, and wherein the valve mount and the sleeve are adapted to reciprocate with respect to each other while the bottom section remains coupled to the sleeve., 'c. a shot meter comprising2. The shot blaster of further comprising an orifice adaptor having a plate and a plate orifice adapted to be adjustably aligned relative to bottom orifice to regulate the effective size of a flow path between the bottom orifice and the top opening of the valve mount.3. The shot blaster of wherein said valve mount has at least one upwardly protecting attachment pin extending through an elongate slot in the bottom wall of the reservoir.4. The shot blaster of wherein the ...

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Номер записи: 17
04-01-2018 дата публикации

METHODS AND TOOL FOR MAINTENANCE OF HARD SURFACES, AND A METHOD FOR MANUFACTURING SUCH A TOOL

Номер: US20180001433A1
Автор: THYSELL Hakan
Принадлежит: HTC Sweden AB

A method is disclosed for treating or maintaining a hard surface comprising a stone or stone-like material, the method comprising treatment of the surface with a flexible pad, in the presence of abrasive particles, bonded to the pad, on a contact surface between the pad and the hard surface, wherein the abrasive particles comprise diamond particles, and the treatment is performed in the absence of an effective amount of crystallization agent on the contact surface. The treatment is performed on a substantially regular basis, such as daily, weekly or monthly, and the treatment is performed using a pad comprising an open, lofty, three dimensional non-woven webs of fibers. A tool for use in the method is also provided, as well as a floor-surfacing machine comprising such a tool and a method for manufacturing such a tool. Furthermore, methods for treating or maintaining hard, smooth surfaces such as wood, polymer material, lacquer, linoleum, gelcoat, glass and automotive enamel are disclosed. 1. (canceled)2. A method for maintaining a hard , smooth floor surface comprising a polymer material , the method comprising:treating the hard, smooth floor surface with a flexible pad comprising an open, lofty, three dimensional non-woven web of fibers, in the presence of abrasive particles, bonded to the pad, on a contact surface between the pad and the hard, smooth floor surface,wherein the abrasive particles comprise diamond particles of an average diameter of 0.1 to 30 μm, preferably 0.1 to 15 μm or 3 to 6 μm, andwherein treating the hard, smooth floor surface is performed using said pad having:abrasive particles bonded thereto only in a vicinity of the contact surface,the fibers of the flexible pad are bonded to each other by a primary binder and/or via melt-bonding, and have the abrasive particles bonded thereto by a secondary binder,the abrasive particles are present throughout the secondary binder,a first portion of the flexible pad has the abrasive particles present in a ...

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Номер записи: 18
02-01-2020 дата публикации

Method and apparatus for applying a uniform texture to a substantially vertical surface

Номер: US20200001422A1
Автор: Mark Jack Richardson
Принадлежит: Vertical Concrete Polishing Inc

A surfacing apparatus supported adjacent a substantially vertical surface of a structure for applying an even and uniform texture to the surface of the structure using a selectively adjustable force exerted on a texturing means to engage the surface of the structure. The surfacing apparatus is suited for horizontal and vertical movement in controlled prescribed paths under controlled and prescribed pressure from the adjustable tensioning means.

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Номер записи: 19
12-01-2017 дата публикации

TOOL AND METHOD FOR MAKING A BRAKE DISK

Номер: US20170008142A1
Автор: Flores Gerhard, HARTMANN VALERI, KOEPP JOSEF, Verpoort Clemens Maria
Принадлежит:

The present invention in one or more embodiments provides a roller tool for roughening a friction ring of a brake disk, the roller tool including a roller body including inner and outer ends and a casing surface positioned there-between, the inner end differing in cross-section dimension than the outer end, the casing surface including thereupon one or more protrusions for contacting the friction ring. The roller tool may further include a support frame supporting the roller body. The support frame may include a short leg connected to the outer end of the roller body and a long leg connected to the inner end of the roller body. 1. A roller tool to roughen a friction ring of a brake disk , comprising:a roller body including inner and outer ends and a casing surface positioned there-between, the inner end differing in cross-section dimension than the outer end; andone or more protrusions supported on the casing surface and to contact the friction ring.2. The roller tool of claim 1 , further comprising a support frame supporting the roller body.3. The roller tool of claim 2 , wherein the support frame includes a short leg connected to the outer end of the roller body and a long leg connected to the inner end of the roller body.4. The roller tool of claim 3 , further comprising an arm connecting the short and long legs.5. The roller tool of claim 1 , wherein the inner end is of an inner end circumference and the outer end is of an outer end circumference differing in value than the inner end circumference.6. The roller tool of claim 5 , wherein a ratio of the outer end circumference of the roller body relative to an outer ring circumference of the friction ring is equal to a ratio of the inner end circumference of the roller body relative to an inner ring circumference of the friction ring.7. The roller tool of claim 1 , wherein the casing surface is of a longitudinal dimension defined between the inner and outer ends claim 1 , the longitudinal dimension being no ...

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Номер записи: 20
10-01-2019 дата публикации

Method of Manufacturing Actively Cooled Accelerator Grid with Full Penetration Weld Configuration

Номер: US20190011188A1
Автор: Chakraborty Arunkumar, Joshi Jaydeep, Rotti Chandramouli
Принадлежит:

Disclosed is an improved method of manufacturing cooled accelerator grid with full penetration weld configuration. In a preferred form, the method includes the steps of: machining a plurality of stubs, a first and a second end of a plurality of inconel pipes; welding the stubs with the first end of the inconel pipes forming a water connector assembly; machining of a base plate; welding the base plate with the water connector assembly; machining the base plate welded with the water connector assembly, wherein machining further comprises milling of plurality of cooling channels across angled plane of the base plate welded with the water connector assembly; closing of plurality of cooling channels located on the base plate welded with the water connector assembly; and welding each of plurality of external hydraulic circuits with the second end of each of the plurality of inconel pipes. 1. A method of manufacturing actively cooled accelerator grid with full penetration weld configuration comprising the steps of:a) machining a plurality of stubs;b) machining a first end and a second end of each of a plurality of inconel pipes;c) welding each of the plurality of the stubs with the first end of the each of the plurality of inconel pipes, thereby forming a water connector assembly;d) machining a base plate to prepare a plurality of weld edges in ‘U’ shape in accordance to a plurality of reference holes located on the base plate;e) full penetration welding of the base plate with the water connector assembly by electron beam welding;f) machining the base plate welded with the water connector assembly to create a hydraulic passage up to the manifold, wherein machining further comprises milling of a plurality of cooling channels across angled plane of the base plate welded with the water connector assembly;g) welding each of a plurality of external hydraulic circuits with the second end of the each of the plurality of inconel pipes.2. The method as claimed in claim 1 , wherein ...

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Номер записи: 21
18-01-2018 дата публикации

APPARATUS FOR SURFACE ABRASION

Номер: US20180015588A1
Автор: ROGERS Owen
Принадлежит:

An apparatus for abrading a surface is provided. The apparatus includes: a framework with a motor housed therein; a chassis housing a drivetrain, the drivetrain including a drive pulley operative connected to the motor, a plurality of tool assembly pulleys, a belt operatively connecting the drive pulley and the plurality of tool assembly pulleys; a plurality of tool assemblies operatively connected to the drive pulley and the plurality of tool assembly pulleys, each tool assembly including: a tool holder, a tool plate comprising a tool segment with an abrading surface, wherein the tool holder and tool plate are detachably connected by a plurality of equidistantly spaced pins, wherein the number of pins is a multiple of three. 1. An apparatus for abrading a surface comprising:a framework with a motor housed therein; a drive pulley operative connected to the motor;', 'a plurality of tool assembly pulleys;', 'a belt operatively connecting the drive pulley and the plurality of tool assembly pulleys;, 'a chassis housing a drivetrain, the drivetrain comprising a tool holder;', 'a tool plate comprising a tool segment with an abrading surface;', 'wherein the tool holder and tool plate are detachably connected by a plurality of equidistantly spaced pins, wherein the number of pins is a multiple of three., 'a plurality of tool assemblies operatively connected to the drive pulley and the plurality of tool assembly pulleys, each tool assembly comprising2. An apparatus according to wherein the belt operatively connects the drive pulley and the plurality of tool assembly pulleys claim 1 , and the plurality of tool assembly pulleys are configured in an array claim 1 , whereby lateral or longitudinal displacement of the chassis across the surface to be abraded results in a path of any one tool assembly rotating in one direction to be at least partially overlapped by a path of at least one other tool assembly rotating in the opposite direction.3. An apparatus according to wherein ...

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Номер записи: 22
15-01-2015 дата публикации

METHOD OF GRINDING SPRING ENDS AND SPRING END GRINDING MACHINE

Номер: US20150017881A1
Автор: Kuttler Thomas, Reich Egon, Weigmann Uwe-Peter
Принадлежит:

A method of grinding spring ends of helical compression springs is carried out using a numerically controlled spring end grinding machine having a grinding unit, a loading unit and a control unit that controls the loading unit and the grinding unit. The grinding unit has a pair of grinding wheels including two rotatable grinding wheels between which is formed a grinding space. The loading unit has at least one loading plate substantially rotatable axially parallel to the grinding wheels and has a plurality of out-of-axis spring receptacles, each to receive a helical compression spring. 117.-. (canceled)18. A method of grinding spring ends of helical compression springs using a numerically controlled spring end grinding machine having a grinding unit , a loading unit and a control unit that controls the loading unit and the grinding unit , wherein the grinding unit has a pair of grinding wheels comprising two rotatable grinding wheels , between which there is formed a grinding space , and the loading unit has at least one loading plate rotatable substantially axially parallel to the grinding wheels and has a plurality of out-of-axis spring receptacles , each for receiving a helical compression spring , wherein , during a grinding operation , helical compression springs that have been received in spring receptacles are successively transported through the grinding space between the rotating grinding wheels by rotation of the loading plate and , as this happens , both spring ends of the helical compression springs located in the grinding space are in each case simultaneously machined by grinding , comprisingdetermining a temperature signal representing the temperature by a temperature measurement on at least one of the helical compression springs during the grinding operation; andcontrolling the spring end grinding machine depending on the temperature signal.19. The method as claimed in claim 18 , wherein the temperature is measured in a region of a first turn of the ...

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Номер записи: 23
26-01-2017 дата публикации

HANDHELD ABRADING MACHINE

Номер: US20170021471A1
Автор: Panzer Udo, Roeck Dirk, Sabuncuoglu Nazim
Принадлежит:

In order to provide a handheld abrading machine which is of robust construction and is easy and comfortable to handle, it is proposed that the handheld abrading machine comprise a holding device for holding the abrading machine, a drive motor and a tool head, wherein the tool head is arranged on the holding device such as to be moveable by means of a moving device, wherein the tool head is pivotal relative to the holding device about one or more pivotal axes by means of the moving device and wherein a distance of the tool head from the holding device is variable by means of the moving device. 1. A handheld abrading machine comprising a holding device for holding the abrading machine , a drive motor and a tool head , wherein the tool head is arranged on the holding device such as to be movable by means of a moving device , wherein the tool head is pivotal relative to the holding device about one or more pivotal axes by means of the moving device and wherein a distance (A) of the tool head from the holding device is variable by means of the moving device.2. An abrading machine in accordance with claim 1 , wherein the distance (A) of the tool head from the holding device is variable by means of the moving device by pivoting the tool head about one or more pivotal axes.3. An abrading machine in accordance with claim 1 , wherein a distance (A) of a bearing point of the tool head that is arranged on a fork element from a distal end of the holding device is variable by means of the moving device.4. An abrading machine in accordance with claim 1 , wherein the moving device comprises a rotating device for pivoting the tool head about one or more pivotal axes and a displacing device for displacing the tool head relative to the holding device.5. An abrading machine in accordance with claim 1 , wherein the moving device comprises a displacing device for displacing the tool head relative to the holding device claim 1 , wherein the displacing device is integrated into a fork ...

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Номер записи: 24
01-02-2018 дата публикации

GRINDING APPARATUS

Номер: US20180029187A1
Автор: Kawama Mamoru
Принадлежит:

A grinding apparatus includes a holding table for holding a wafer, a support table for supporting the holding table, a motor for rotating the support table, a frame member supporting the support table for rotation, and at least three support poles for supporting the frame member from the base. Each of the support poles has formed in the inside thereof a through-hole, a supply port which communicates the through-hole and an air supply source with each other, and an exhaust port which exhausts air having flowed through the through-hole toward the support table. Air is supplied into the through-hole to cool the support pole, and the air having flowed through the through-hole is exhausted toward the support table. 1. A grinding apparatus comprising:a base;holding means including a holding table for holding a wafer, a support table for supporting the holding table, a motor for rotating the support table, a frame member supporting the support table for rotation, and at least three support poles for supporting the frame member on the base; andgrinding means for grinding the wafer held on the holding table by grindstones;each of the support poles having a through-hole which is connected at a lower end thereof to the base and at an upper end thereof to the frame member and extends through the inside of the support pole, a supply port disposed at a lower end side of the through-hole and communicating the through-hole and an air supply source with each other, and an exhaust port disposed at an upper end side of the through-hole and configured to exhaust air, which has flowed in the through-hole, toward the support table;air being supplied into the through-hole to cool each of the support poles while the air having flowed through the through-hole is exhausted toward the support table to cool the support table thereby to prevent thermal deformation of the support pole and the support table.2. The grinding apparatus according to claim 1 , whereinat least one of the three support ...

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Номер записи: 25
31-01-2019 дата публикации

VALVE GRINDING TOOL

Номер: US20190030680A1
Автор: BRIGHT Jeffery W., McGriff Roy
Принадлежит:

A tool includes a coupling, an inner adjustment sleeve, and an outer adjustment sleeve. The coupling connects a rotary tool to the inner adjustment sleeve. An adjustable portion of the inner adjustment sleeve is threadedly received in the outer adjustment sleeve. An offset aperture in the free end of the outer adjustment sleeve receives a tip of a valve stem for grinding. An optional cup at the end of the outer adjustment sleeve stabilizes the tool. A grinding bit with a shaft retained in a collet of the rotary tool is contained internally, in a channel, extending through the tool. 1. A valve grinding tool comprising:a coupler, a threaded sleeve and an alignment tube;the coupler including a first end, a second end and a coupler central channel extending from the first end of the coupler to the second end of the coupler, the first end of the coupler being open and including internal threads for connecting to a rotary tool, the second end of the coupler being open and opposite to the first end of the coupler; andthe alignment tube including a first end, a second end and an alignment tube channel extending from the first end of the alignment tube to the second end of the alignment tube and having a central alignment tube longitudinal axis, the first end of the alignment tube being open and including internal threads for connecting to the threaded sleeve, the second end of the alignment tube having an opening;the threaded sleeve including a central channel, and the threaded sleeve coupling the second end of the coupler to the first end of the alignment tube, a distance between the second end of the coupler and the first end of the alignment tube being adjustable by threadedly receiving a portion of the threaded sleeve in one of the central channel of the coupler and the channel of the alignment tube, and the central channel of the threaded sleeve having a central longitudinal axis; andthe opening of the second end of the alignment tube having a center, and the central ...

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Номер записи: 26
24-02-2022 дата публикации

Hand-Held Power Tool

Номер: US20220055176A1
Автор: Zieger Jens
Принадлежит:

A hand-held power tool, in particular a grinder, for simultaneously driving a plurality of grinding plates includes a main housing, which accommodates at least one motor for driving the grinding plates. A handle housing forms a handle and protrudes substantially perpendicularly to the main housing, and in particular the handle housing accommodates a storage battery. The hand-held power tool includes a motor having a drive shaft, which defines a motor axis, a central wheel, which is driven by the motor and defines a central wheel axis, and a plurality of, in particular three, output shafts, which are driven by the central wheel and define respective output shaft axes. Each output shaft is provided for driving one grinding plate or at least one grinding plate receptacle, and the motor axis is arranged eccentrically to the central wheel axis between a front output shaft axis and the central wheel axis. 114-. (canceled)15. A hand-held power tool for simultaneously driving a plurality of grinding disks , comprising:a motor having a drive shaft that defines a motor axis;a central wheel driven by the motor and which defines a central wheel axis; anda plurality of output shafts driven by the central wheel, each output shaft of the plurality of output shafts defining a respective output shaft axis and being configured to drive a respective grinding disk or a respective grinding disk holder,wherein the motor axis is arranged eccentrically to the central wheel axis.16. The hand-held power tool as claimed in claim 15 , further comprising:a handle or a handle housing oriented transversely to the central wheel axis,wherein the motor or the motor axis is disposed opposite of the handle or the handle housing in relation to the central wheel axis.17. The hand-held power tool as claimed in claim 16 , wherein the handle is a barrel handle.18. The hand-held power tool as claimed in claim 16 , wherein the handle or the handle housing is configured to accommodate a storage battery.19. ...

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Номер записи: 27
16-02-2017 дата публикации

GRINDING/MILLING MACHINE FOR LEVELLING OF HORIZONTAL SURFACES

Номер: US20170043445A1
Автор: LILIENBERG Per-Erik
Принадлежит:

A grinding/milling machine for levelling of horizontal surfaces, having a mobile drive unit, including a vertically pivotable boom suspended from the mobile unit, a rigid girder pivotally fastened at the end of the boom and two motorized machining and/or milling machines, each being arranged at a respective opposite end of the rigid girder. 1. A grinding/milling machine for levelling of horizontal surfaces comprising:a mobile drive unit, including a vertically pivotable boom, suspended on the mobile unit;a rigid girder arranged in a joint at one end of the boom; andtwo motorized grinding and/or milling heads, each being arranged at a respective opposite end of the rigid girder;whereby the rigid girder is fastened so that it is turnable in a horizontal plane at the same time as it is turnable around a longitudinal axis (a) for the girder, traversing said joint as well as turnable around a transversal axis (b) which also traverses said joint,wherein a hydraulic cylinder is arranged in connection with the joint for controlled tilting of the rigid girder in relation to the boom.2. The grinding/milling machine according to claim 1 , wherein said motors are hydraulic motors.3. The grinding/milling machine according to claim 1 , wherein in connection with the suspension of the boom at the mobile drive unit a hydraulic cylinder is arranged for lifting up of the boom and for adapting the bearing pressure of the machining and/or milling heads against the ground.4. The grinding/milling machine according to claim 1 , wherein the machining and/or milling heads are comprised of circular discs with fasteners for tool carriers in the form of disc elements having a narrower fastening end and a wider working end claim 1 , whereby the fasteners are arranged on the disc elements.5. The grinding/milling machine according to claim 4 , wherein the tool carriers are reversible and carry similar or different tools on their respective sides. The present invention relates to a grinding/ ...

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Номер записи: 28
18-02-2021 дата публикации

Concrete Surface Polishing Trowel and Conversion Adaptor

Номер: US20210047845A1
Автор: Adamchuk Brian M., Gibson Lee T., Guinn Timmy D.
Принадлежит: ALLEN ENGINEERING CORPORATION

An adaptor assembly for concrete finishing trowels that enables efficient polishing of concrete surfaces, and trowels equipped with said adaptors. A large, rigid, circular adaptor disk supports a plurality of spaced-apart polishing rotors that project into contact with the concrete surface being treated. Each polishing head is rotatably secured to the adaptor disk with a spindle assembly including suitable alignment bearings. The spindle assembly secures a rigid header beneath the adaptor disk that sandwiches a resilient, annular coupler between itself and a rigid driver plate beneath the coupler. Bosses on the coupler insure spacing and enable proper flexure. The driver plate removably mounts a resilient finishing ring, that supports a plurality of radially spaced apart, downwardly projecting, diamond-equipped pucks that frictionally bear against the concrete surface for abrading and polishing. 1. An adaptor for converting a concrete finishing trowel for polishing , the trowel comprising at least one downwardly projecting , rotatable rotor that contacts a concrete surface for finishing , the adaptor comprising:a rigid frame disk adapted to be engaged by and rotated by a trowel rotor;at least one polishing head supported beneath said frame disk that contacts the concrete surface below;a spindle rotatably supporting the at least one polishing head for rotation beneath said frame disk;a rigid header supported by said spindle;a flexible coupler secured to said header;a rigid driver plate secured beneath said flexible coupler;a polishing ring coupled to said driver plate; and,a plurality of radially spaced apart, abrading projections extending downwardly from said polishing ring for concrete polishing.2. The adaptor as defined in wherein the coupler is resilient and comprises a plurality of radially spaced-apart upper bosses projecting upwardly to space said coupler from said header claim 1 , a plurality of radially spaced apart lower bosses projecting downwardly to ...

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Номер записи: 29
14-02-2019 дата публикации

MANUFACTURING METHOD OF CARRIER FOR DOUBLE-SIDE POLISHING APPARATUS AND METHOD OF DOUBLE-SIDE POLISHING WAFER

Номер: US20190047113A1
Автор: KITAZUME Daichi, Tanaka Yuki
Принадлежит: SHIN-ETSU HANDOTAI CO., LTD.

A manufacturing method of a carrier for a double-side polishing apparatus, including: preparing a carrier base material and insert thicker than the carrier base material, inserting the insert into a holding hole so as to protrude the insert from both sides of the front surface and back surface of the carrier base material, measuring each of a front protruding amount of the insert protruded from front surface of the carrier base material and a back protruding amount of the insert protruded from back surface of the carrier base material, setting each rotational speed of the upper turn table and lower turn table in starting-up polishing of the carrier so as to decrease the difference between the front protruding amount and back protruding amount, and a starting-up polishing step to subject the carrier to starting-up polishing at each set rotational speed of the upper turn table and the lower turn table. 17.-. (canceled)8. A manufacturing method of a carrier for a double-side polishing apparatus , the double-side polishing apparatus including an upper turn table and a lower turn table to which polishing pads are attached , and the carrier including a carrier base material having a holding hole formed therein to hold a wafer , and an insert disposed along the inner circumference of the holding hole and having an inner circumferential portion configured to be in contact with an outer circumferential portion of the wafer , the method comprising:a preparation step of preparing the carrier base material and the insert thicker than the carrier base material;a step of inserting the insert into the holding hole so as to protrude the insert from both sides of the front surface and the back surface of the carrier base material;a measuring step to measure each of a front protruding amount of the insert protruded from the front surface of the carrier base material and a back protruding amount of the insert protruded from the back surface of the carrier base material;a setting step ...

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Номер записи: 30
25-02-2021 дата публикации

FLOOR POLISHING APPARATUS

Номер: US20210053188A1
Автор: Palushaj Simon
Принадлежит:

A brush assembly is provided for increasing an effective area and uniformity of performance in an abrasive floor polishing application at a given size of brush mount. The brush assembly includes a pad with slots for receiving abrasive blades. The pad includes variable protrusions to provide varied support to the abrasive blades. The blades have a trapezoidal body shape. The blades include abrading components including an abrasive material such as diamonds. In some embodiments, the abrading components include a metallic material, such as copper material. In some embodiments, the abrading components include a phenolic material. 1. A brush assembly comprising:a substantially round pad including a bottom housing, the bottom housing having a plurality of slots, the plurality of slots being aligned along circumferentially spaced radial directions with respect to the pad, respectively, the bottom housing including a plurality of axially-extending variable protrusions extending from the body and aligned along circumferentially spaced radial directions, the plurality of axially-extending variable protrusions each having a peak end and a base end, the peak ends extending further axially away from the bottom housing than the respective base ends, the plurality of axially-extending variable protrusions each being disposed along one of the plurality of slots with the respective peak end at a radially outward position; anda blade component configured to removeably engage the pad at one of the slots with the blade component laterally oriented along the one of the slots and with the blade component circumferentially interfacing with one of the plurality of the axially-extending variable protrusions, the blade component including a retainer portion configured to engage the one of the slots at a top end and to receive an abrading element at a longitudinally opposing distal end thereof, the top and distal ends of the retainer portion each being laterally centered relative to each ...

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Номер записи: 31
21-02-2019 дата публикации

Advanced floor machine

Номер: US20190054593A1
Автор: ALBERTY Seth, HAHNE Jeremy Michael, Herzer Bernardo J., Kostka David, PENDER Jeremy Alexander, SPANN Mike
Принадлежит:

Disclosed is an invention that offers improvements to machines used for power floor buffing, grinding, and polishing including: a dust containment system which utilizes a single shroud with an attached lower brush to fully enclose the top and sides of a rotating implement whereas said shroud is spring loaded and allowed to move vertically and tilt in order to maintain firm contact with the floor at all times and prevent escaping air and dust; a dust extraction and collection system that expands upon said dust containment system by integrating a scroll shaped channel into the shroud and an outlet chute to extract and collect dust in a filtered dust bag and in which performance is increased by fins on the rotating implement driver and air inlet holes; a quick-release tool-less mechanism for attaching a rotating implement to the driveshaft with a hex shaped male/female interaction and push button release ball pin. 1. A dust containment system for a machine used for floor buffing , grinding , and polishing wherein said machine includes a chassis , a motor mounted to said chassis , rotating implement such as a pad or disk to buff , grind , or polish the floor which depends from said chassis and makes contact with the floor and is powered by said motor to rotate in contact with the floor; said dust containment system comprises of:a shroud with an outer circular vertical wall which transitions to a horizontal ceiling surface which both encircles and covers the rotating implement, said shroud includes a primary central hole in its ceiling surface, said shroud includes 2 or more smaller satellite holes in its ceiling surface;two or more guide shafts are affixed to the bottom of said chassis; each guide shaft is cylindrical in shape with the primary cylinder being of smaller diameter than the satellite holes in the shroud; at the bottom of each guide shaft is a shoulder with a larger diameter than the satellite holes in said shroud;said shroud is positioned with said guide ...

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Номер записи: 32
21-02-2019 дата публикации

APPARATUS AND METHOD FOR SURFACE FINISHING

Номер: US20190054615A1
Автор: Martin Jeff, Ulliman Matthew S.
Принадлежит:

An apparatus for surface finishing includes a robot and an end effector. The end effector includes a compliance wrist having an axis of movement and coupled to the robot and a grinder tool coupled to the compliance wrist. The robot is configured to controllably position the end effector in three-dimensional space. The compliance wrist is configured to bias the grinder tool to a biased position relative to the robot and enable the grinder tool to move relative to the robot in response to an external force acting upon the grinder tool. 1. An apparatus for surface finishing , said apparatus comprising:a robot; and a compliance wrist having an axis of movement and coupled to said robot; and', 'a grinder tool coupled to said compliance wrist, and wherein:, 'an end effector comprisingsaid robot is configured to controllably position said end effector in three-dimensional space; and bias the grinder tool to a biased position relative to said robot; and', 'enable said grinder tool to move relative to said robot in response to an external force acting upon said grinder tool., 'said compliance wrist is configured to2. The apparatus of claim 1 , wherein said compliance wrist is further configured to:pivotally bias said grinder tool to a pivotally biased position about said axis of movement relative to said robot; andenable said grinder tool to pivotally move about said axis of movement relative to said robot in response to said external force acting upon said grinder tool.3. The apparatus of claim 1 , wherein said compliance wrist is configured to:linearly bias said grinder tool to a linearly biased position along said axis of movement relative to said robot; andenable said grinder tool to linearly move along said axis of movement relative to said robot in response to said external force acting upon said grinder tool.4. The apparatus of claim 1 , wherein said compliance wrist comprises:a robot-mounting member coupled to an end of said robot;a tool-supporting member coupled to ...

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Номер записи: 33
02-03-2017 дата публикации

FLOOR GRINDING MACHINE

Номер: US20170057042A1
Автор: Gustafsson Robert, Winterfjord Olof
Принадлежит:

A grinding or polishing machine () may include a working assembly () and a foldable cart (). The working assembly () may include a grinding head () rotatable to engage a surface for grinding or polishing. The foldable cart () may be releasably coupled to the working assembly (). The foldable cart () may include a mobility assembly () including at least one wheel () and a frame (), and a handle assembly () operably coupled to the frame (). The handle assembly () may include a first frame portion () and a second frame portion (). The first frame portion () and the second frame portion () may be operably coupled to each other via a folding joint (). 1. A grinding or polishing machine comprising:a working assembly including a grinding head rotatable to engage a surface for grinding or polishing; and a mobility assembly including at least one wheel and a frame; and', 'a handle assembly operably coupled to the frame,, 'a foldable cart releasably coupled to the working assembly, the foldable cart comprisingwherein the handle assembly includes a first frame portion and a second frame portion, and the first frame portion and the second frame portion are operably coupled to each other via a folding joint.2. The grinding or polishing machine of claim 1 , wherein the first frame portion is rotatably coupled to the frame claim 1 , andwherein the folding joint is operable to be locked in at least an operating position in which the first frame portion and the second frame portion lie substantially in a same plane and a folded position in which the first frame portion and the second frame portion lie in different planes.3. The grinding or polishing machine of claim 1 , wherein the folding joint is operable to be locked in a plurality of folded positions claim 1 , andwherein the first frame portion lies in a plane substantially parallel to and spaced apart from a plane in which the second frame portion lies in at least one of the folded positions.4. The grinding or polishing machine ...

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Номер записи: 34
17-03-2022 дата публикации

Hand-Held Power Tool

Номер: US20220080548A1
Автор: Zieger Jens
Принадлежит:

A hand-held power tool, in particular a grinder, for simultaneously driving multiple grinding discs, includes at least one output shaft housing which surrounds multiple output shafts orthogonally to their output shaft axes, and a motor housing which at least substantially surrounds a motor orthogonally to the motor shaft axis. A cross-sectional surface of the motor housing running orthogonally to the motor shaft axis, in a narrower region of the motor housing, is less than 70% of the area of a cross-sectional surface of the output shaft housing running orthogonally to the output shaft axes, in a wider region of the output shaft housing, and/or one, in particular two, of the output shaft axes, are located outside the motor housing, preferably outside a concavely indented region of the hand grip, of the motor housing, and/or of the transition region between the hand grip and the motor housing. 112-. (canceled)13. A hand-held power tool for simultaneously driving a plurality of grinding disks , comprising:a plurality of output shafts defining output shaft axes;at least one output shaft housing enclosing the plurality of output shafts orthogonally to the output shaft axes;a motor having a motor shaft axis; anda motor housing which at least substantially encloses the motor orthogonally to the motor shaft axis,wherein a first sectional area of the motor housing orthogonal to the motor shaft axis in a constricted region of the motor housing amounts to less than 70% relative to a second sectional area of the output shaft housing orthogonal to the output shaft axes in an extended region of the output shaft housing.14. The hand-held power tool as claimed in claim 13 , wherein a rear region of the second sectional area of the output shaft housing is covered to an extent of less than 75% by the first sectional area of the motor housing projected along the motor shaft axis.15. The hand-held power tool as claimed in claim 14 , wherein the rear region is in a region of at least ...

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Номер записи: 35
27-02-2020 дата публикации

CARRIER FOR DOUBLE-SIDE POLISHING APPARATUS, DOUBLE-SIDE POLISHING APPARATUS, AND DOUBLE-SIDE POLISHING METHOD

Номер: US20200061772A1
Автор: KITAZUME Daichi, Tanaka Yuki
Принадлежит: SHIN-ETSU HANDOTAI CO., LTD.

A carrier for a double-side polishing apparatus configured to double-side polish providing a semiconductor silicon wafer. The carrier being disposed between upper and lower turn tables have a polishing pad attached, and includes a holding hole formed to hold the semiconductor silicon wafer between the upper and lower turn tables during polishing. The carrier for a double-side polishing apparatus is made of a resin. An average contact angle with pure water of front and back surfaces of the carrier, which come into contact with the polishing pads, is 45° or more and 60° or less, and a difference in average contact angles between the front surface and the back surface is 5° or less, which provides a carrier for a double-side polishing apparatus capable of enhancing the polishing rate for a semiconductor silicon wafer by using a resinous carrier; and a double-side polishing apparatus and method which employ the carrier. 15-. (canceled)6. A carrier for a double-side polishing apparatus configured to double-side polish a semiconductor silicon wafer , the carrier being disposed between upper and lower turn tables each having a polishing pad attached thereto , and comprising a holding hole formed therein to hold the semiconductor silicon wafer sandwiched between the upper and lower turn tables during polishing , whereinthe carrier for a double-side polishing apparatus is made of a resin,an average contact angle with pure water of front and back surfaces of the carrier, which come into contact with the polishing pads, is 45° or more and 60° or less, anda difference in average contact angles between the front surface and the back surface is 5° or less.7. The carrier for a double-side polishing apparatus according to claim 6 , whereinthe resinous carrier for a double-side polishing apparatus is a resin stacked plate, andthe resin stacked plate has a hydrophilic fibrous base material impregnated with a resin.8. The carrier for a double-side polishing apparatus according to ...

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Номер записи: 36
11-03-2021 дата публикации

Grinding Head for Floor Grinding Machine and Method of Assembling a Grinding Head, Setting a Belt Tensioner, Servicing, Assembling or Disassembling a Belt Pulley for a Floor Grinding Machine

Номер: US20210069857A1
Автор: Adolfsson Samuel, Fogelberg Andreas, Gustavsson Daniel, Ottosson Linus
Принадлежит:

The present disclosure relates to a grinding head () for a floor grinding machine for grinding floor surfaces of stone or stone-like material. Such a grinding head () comprises a lower casing member (), comprising a lower support () and an upwardly extending edge portion (), and an upper casing number (), comprising an upper cover () and a downwardly extending edge portion (), wherein the upper casing member () is joinable to the lower casing member () by causing axially distal portions of the edge portions to bear on each other. 1. A grinding head for a floor grinding machine for grinding floor surfaces of stone or stone-like material , the grinding head comprising:a hollow grinding head casing enclosing:a drive axle,at least two belt pulleys associated with a respective grinding disk,a belt running over said belt pulleys and said drive axle,a belt tensioner, comprising a tensioner pulley, which is displaceable by rotation about a setting axis, which is spaced from the tensioner pulley by a pulley lever, the setting axis being parallel with an axis of rotation of the grinding head, anda tensioner setting device, for setting a position of the pulley in said direction. by application of a torque about the setting axis,wherein the tensioner setting device is accessible from outside of the grinding head casing, such that the belt tensioner can be adjusted while the grinding head is in an assembled state.2. The grinding head as claimed in claim 1 , further comprising a locking device claim 1 , for locking the belt tensioner relative to the grinding head claim 1 , wherein said locking device is also accessible from the outside of the grinding head casing.3. The grinding head as claimed in claim 2 , wherein the locking device comprises a locking lever claim 2 , which is fixedly connected to an axle about which the belt tensioner is rotatable claim 2 , and a locking fastener claim 2 , arranged to releasably fasten the locking lever relative to the casing claim 2 , such ...

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Номер записи: 37
17-03-2016 дата публикации

SURFACE TREATMENT APPARATUS, AND SURFACE TREATMENT METHOD

Номер: US20160074984A1
Автор: Ikeya Yukihiro, MIYAUCHI Ko, Nakamura Yoshihide, Sasaki Sadayuki
Принадлежит: KABUSHIKI KAISHA TOSHIBA

According to an embodiment, a surface treatment apparatus includes a surface treatment portion, a supporter, and a carrying portion. The surface treatment portion has a treatment surface. The supporter has a support surface facing a second surface opposite to the first surface of the work. A frictional coefficient of the second surface and the support surface is higher than a frictional coefficient of the first surface and the treatment surface. The carrying portion applies a load in a direction in which the support surface is relatively pressed on the treatment surface, moves the support surface in a carrying direction different from the direction of the load, and thereby moves the work in the carrying direction. 1. A surface treatment apparatus comprising:a surface treatment portion having a treatment surface which faces a first surface of a work and which treats the first surface;a supporter having a support surface, the support surface facing a second surface opposite to the first surface of the work, a frictional coefficient of the second surface and the support surface being higher than a frictional coefficient of the first surface and the treatment surface; anda carrying portion which applies a load in a direction in which the support surface is relatively pressed on the treatment surface, moves the support surface in a carrying direction of the work different from the direction of the load, and thereby moves the work in the carrying direction.2. The surface treatment apparatus according to claim 1 , wherein force is applied to the work from the surface treatment portion in a direction that crosses the carrying direction of the work.3. The surface treatment apparatus according to claim 1 , wherein the work is sheet-shaped claim 1 , andthe treatment surface is a polishing surface which operates in a direction different from the carrying direction when in contact with the first surface and polishes the first surface.41. The surface treatment apparatus according ...

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Номер записи: 38
17-03-2016 дата публикации

Wafer polishing apparatus

Номер: US20160074990A1
Автор: Kee Yun Han
Принадлежит: LG Siltron Inc

A wafer polishing apparatus includes a lower surface plate, an upper surface plate disposed over the lower surface plate, a carrier disposed between the lower surface plate and the upper surface plate and containing a wafer, and a lift unit lifting the carrier such that an upper surface of the carrier contacts a lower surface of the upper surface plate or lowering the carrier such that a lower surface of the carrier contacts an upper surface of the lower surface plate.

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Номер записи: 39
24-03-2022 дата публикации

METHOD IN DRY-SHAKE COATING OF A CONCRETE FLOOR

Номер: US20220088736A1
Автор: AHONEN Mika
Принадлежит: CONCRIA OY

A method in dry shake coating of a concrete floor, whereby an applied floor concrete mass is subjected to early after-care, in which connection, if necessary, after floating, on top of the floor concrete mass is applied a dry shake material for two or more superimposed dry shake layers, in which connection the surface of a currently underlying dry shake layer is troweled prior to the application of a next dry shake layer to be processed thereupon, whereafter the lastly processed dry shake layer of a concrete floor is troweled and the concrete floor is subjected to actual aftercare. The application of an underlying dry shake layer is followed by spreading over its surface a water soluble silica-based medium prior to and/or during the course of troweling this particular dry shake layer and prior to the application of an overlying dry shake layer to be spread thereupon. 1. A method in dry shake coating of a concrete floor , whereby an applied floor concrete mass is first of all subjected to early aftercare , most preferably by spraying its surface with an early aftercare agent , in which connection , if necessary , after floating , on top of the floor concrete mass is applied a dry shake material , in which connection the surface of a currently underlying dry shake layer is troweled prior to the application of a next dry shake layer to be processed thereupon , whereafter the lastly processed dry shake layer of a concrete floor is troweled and the concrete floor is subjected to actual aftercare with an aftercare agent , water spraying , plastic sheet , filter fabric protection , or the like , characterized in that , in the process of spreading the dry shake material on top of the floor concrete mass for two or more superimposed dry shake layers , it is for increasing an overall thickness of the dry shake coating and for enhancing mutual bonding of the superimposed dry shake layers that the application of the underlying dry shake layer is followed by spreading over its ...

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Номер записи: 40
24-03-2022 дата публикации

ASSEMBLY FOR A FLOOR PROCESSING MACHINE

Номер: US20220088739A1
Автор: Klacking Ryan
Принадлежит:

An enclosure assembly includes a pan that includes at least one shaft opening. A shroud at least partially surrounds the pan. The shroud extends transversely relative to the pan. A skirt surrounds a perimeter of the shroud and is moveable relative to the shroud. 1. An enclosure assembly comprising:a pan including at least one shaft opening;a shroud at least partially surrounding the pan, wherein the shroud extends transversely relative to the pan; anda skirt surrounding a perimeter of the shroud and moveable relative to the shroud.2. The assembly of claim 1 , wherein the shroud directly engages the pan and forms a seal with the pan.3. The assembly of claim 1 , wherein the pan includes at least one shaft opening for accepting a rotor drive shaft.4. The assembly of claim 3 , including a flexible boot at least partially enclosing the at least one shaft opening in the pan and having a rotor shaft opening for accepting the rotor shaft.5. The assembly of claim 4 , including a first bearing engaging a first side of the flexible boot.6. The assembly of claim 5 , wherein the first bearing includes an outer race that is fixed relative to the flexible boot and an inner race configured to rotate with the rotor shaft.7. The assembly of claim 5 , including a second bearing engaging a second side of the flexible boot.8. The assembly of claim 7 , wherein the second bearing includes an outer race that is fixed relative to the flexible boot and an inner race configured to rotate with the rotor shaft.9. The assembly of claim 1 , wherein the skirt is made of a polymeric based material.10. The assembly of claim 1 , including at least one fluid nozzle directed into the enclosure and in fluid communication with a liquid line.11. An assembly for a floor surface processing machine comprising:at least one rotor including a floor engagement tool;a frame at least partially surrounding the at least one rotor; and a pan including at least one shaft opening for accepting a drive shaft for the at ...

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Номер записи: 41
24-03-2022 дата публикации

Method for manufacturing glass plate, method for chamfering glass plate, and method for manufacturing magnetic disk

Номер: US20220089479A1
Автор: Shuhei Azuma
Принадлежит: Hoya Corp

A method for manufacturing a disk-shaped glass plate in which shape processing is performed on an edge surface of the glass plate includes processing the edge surface into a target shape by irradiating the edge surface with a laser beam while moving the laser beam relative to the edge surface in a circumferential direction of the glass plate. A cross-sectional intensity distribution of the laser beam with which the edge surface is irradiated is a single mode, and W1>Th holds true and Pd×Th is in a range of 0.8 to 3.5 [W/mm] when a width of luminous flux of the laser beam in a thickness direction of the glass plate at an irradiation position of the edge surface is W1 [mm], a thickness of the glass plate is Th [mm], and a power density of the laser beam is Pd.

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Номер записи: 42
05-06-2014 дата публикации

GRINDING APPARATUS

Номер: US20140154959A1
Автор: Van Der Veen Tim
Принадлежит: Veen Holdings Pty Ltd.

A grinding apparatus for grinding a floor, the apparatus comprising a body having a travelling mechanism which enables the body to travel across a floor while the apparatus is grinding; a first grinding head incorporating at least one grinding tool and having an operable configuration in which the first grinding head is able to grind a first floor portion; and a second grinding head incorporating at least one grinding tool and having an operable configuration in which the second grinding head is able to grind a second floor portion; wherein the first and second grinding heads are mountable to the body whereby their positions relative to the body are able to be varied. 1. A grinding apparatus for grinding a floor , the apparatus comprising:a body having a travelling mechanism which enables the body to travel across a floor while the apparatus is grinding;a first grinding head incorporating at least one grinding tool and having an operable configuration in which the first grinding head is able to grind a first floor portion; anda second grinding head incorporating at least one grinding tool and having an operable configuration in which the second grinding head is able to grind a second floor portion;wherein the first and second grinding heads are mountable to the body whereby their positions relative to the body are able to be varied.2. A grinding apparatus as claimed in claim 1 , wherein the first and second grinding heads in their operable configurations are in a fixed position relative to each other.3. A grinding apparatus as claimed in claim 1 , wherein the first and second grinding heads are mountable to the body via a common arm.4. A grinding apparatus as claimed in claim 3 , wherein the arm is configured to articulate relative to the body.5. A grinding apparatus as claimed in claim 3 , wherein the arm is pivotally connected to the body.6. A grinding apparatus as claimed in claim 1 , wherein the positions of the first and second grinding heads relative to the ...

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Номер записи: 43
14-03-2019 дата публикации

MODULAR GRINDER VEHICLE

Номер: US20190076979A1
Автор: GRAHAM DAVID
Принадлежит:

Herein is disclosed a floor grinder. The apparatus includes a self propelled vehicle having a driver seat mounted on a top portion and facing a front end of the vehicle and a steering mechanism mounted adjacent the driver seat. Three separate grinders are releasably attached to the vehicle by three elongated mounting arms which position the three grinders adjacent each other in front of the vehicle. One of the grinders is positioned directly in front of the vehicle slightly forward of the remaining grinders. The remaining grinders are position to the left and right of the forward grinder by their mounting arms which mount to a left and right side of the vehicle, respectively. Each of the mounting arms are pivotally coupled to the vehicle to permit the mounting arms to pivot up and down relative to the vehicle. 1. A device for grinding a floor surface comprising:a. A vehicle having a front end, a back end and opposite left and right sides, a bottom portion and a top portion, a driver seat mounted on the top portion and facing the front end, a steering mechanism adapted to steer the vehicle mounted adjacent the driver seat, a drive means for driving the vehicle;b. A first grinder unit detachably mounted to the front end by a first elongated arm having opposite first and second ends, the first arm having a Y shaped yoke formed on the first end for mounting to the first grinder, the second end being pivotally mounted to the front end by a first pivotal connection to permit the first arm to pivot up and down, the first arm dimensioned to position the first grinder directly in front of the front end of the vehicle;c. A second grinder unit mounted to the right side of the vehicle by a second elongated arm having opposite first and second ends, the second arm having a Y shaped yoke formed on the first end for mounting to the second grinder, the second end being pivotally mounted by a second pivotal connection to a first transverse arm projecting from the right side of the ...

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Номер записи: 44
24-03-2016 дата публикации

Flush grinder bit

Номер: US20160082532A1
Автор: Ali W. Eldessouky
Принадлежит: Individual

A flush cut grinder tool bit made of an elongated cylindrical shape with an inwardly facing saw blade within the inner diameter of the elongated cylindrical shape that can be sleeved over a protruding object, such that the cutting saw blade portion of the tool bit is inside the cylindrical tool bit so that when it is sleeved over a protruding object, moving the tool bit back and forth over the protruding object will cut the protruding object off at the surface. The body of the drill bit terminates at its distal end with a flush flange having saw teeth therein, and may include a bit shank suspended in the middle of a drill bit body by spokes or a solid surface radially extending from said bit shank. A method of using such a flush cut grinder tool bit is included.

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Номер записи: 45
31-03-2022 дата публикации

DOUBLE-SIDE OR ONE-SIDE MACHINING MACHINE

Номер: US20220097205A1
Автор: Boller Hans-Peter, Neuber Ingo
Принадлежит: Lapmaster Wolters GmbH

A machining machine comprises a first support disk, a first working disk coupled to the first support disk, and a counter bearing element positioned to define a working gap between the first working disk and the counter bearing element. The first working disk and the counter bearing element are configured to rotate relative to each other to machine at least one side of a flat workpiece. A pressure volume is positioned between the first support disk and the first working disk and is configured to hold a pressure fluid, which generates a pressure configured to deform the first working disk. One or more temperature-controlling channels are positioned within the first working disk and configured to hold a temperature-controlling fluid that is configured to control a temperature of the first working disk, wherein the one or more temperature-controlling channels are fluidly separate from the pressure volume. 1. A machining machine comprising:a first support disk;a first working disk coupled to the first support disk;a counter bearing element positioned to define a working gap between the first working disk and the counter bearing element, wherein the first working disk and the counter bearing element are configured to rotate relative to each other to machine at least one side of a flat workpiece;a pressure volume positioned between the first support disk and the first working disk, the pressure volume configured to hold a pressure fluid, wherein the pressure fluid generates a pressure configured to deform the first working disk; andone or more temperature-controlling channels positioned within the first working disk and configured to hold a temperature-controlling fluid that is configured to control a temperature of the first working disk, wherein the one or more temperature-controlling channels are arranged closer to the working gap than the pressure volume and are fluidly separate from the pressure volume.2. The machining machine according to claim 1 , wherein the ...

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Номер записи: 46
31-03-2022 дата публикации

SURFACE ABRADING MACHINE

Номер: US20220097207A1
Автор: BITTORF James, Wentz John
Принадлежит:

An apparatus for abrading surfaces has a first manifold mounted proximate one end of a shaft, and a second manifold mounted distal to one end of the shaft, said first and second manifolds being constructed to receive and distribute a fluid under positive pressure and vacuum pressure, the shaft being connected to the first and second manifolds to support the manifolds and the shaft includes fluid pathways to conduct air and vacuum flows of the fluid between the manifolds, and an end effector for treating surfaces. 1. Apparatus for abrading surfaces comprising a first manifold mounted proximate one end of a shaft , and a second manifold mounted distal to said one end of the shaft , wherein said first and second manifolds receive and distribute a fluid under positive pressure and vacuum pressure , and said shaft is connected to said first and second manifolds and includes fluid pathways to conduct air and vacuum flows of said fluid between said manifolds , and an end effector for treating surfaces.2. Apparatus according to wherein said first manifold comprises a connector for receiving a fluid under pressure claim 1 , an outlet for providing said fluid to said end effector claim 1 , and at least one outlet for providing said fluid to one or more power control switches.3. Apparatus according to wherein said first manifold comprises a power control lever that adjusts the fluid directed to said end effector.4. Apparatus according to further comprising a fluid operated conveyor and said first manifold includes an outlet for providing said fluid to an inlet of said fluid operated conveyor.5. Apparatus according to wherein said second manifold includes an inlet for receiving said fluid from said first manifold and distributing said fluid to an outlet for supplying said fluid to said end effector.6. Apparatus according to wherein said fluid operated conveyor is mounted to said second manifold.7. Apparatus wherein said shaft is extruded aluminum. This invention related to the ...

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Номер записи: 47
25-03-2021 дата публикации

STAND UP SANDER ASSEMBLY

Номер: US20210086322A1
Автор: Modzelewski John
Принадлежит:

A stand up sander assembly for sanding a floor with a weed trimmer includes a cup that is mountable to a drive output of a weed trimmer such that the cup is rotated by the weed trimmer when the weed trimmer is turned on. A coupler is removably coupled to the cup. The coupler lies on a plane that is oriented perpendicular to a rotational axis of the drive output. A sanding disk is removably attached to the coupler. In this way the sanding disk can be positioned against a surface to be sanded when the weed trimmer is manipulated. The sanding disk is comprised of an abrasive material thereby facilitating the sanding disk to sand the surface. 1. A stand up sander assembly being configured to be mounted to a weed trimmer for sanding a surface , said assembly comprising:a cup being mountable to a drive output of a weed trimmer such that said cup is rotated by said weed trimmer when said weed trimmer is turned on;a coupler being removably coupled to said cup, said coupler lying on a plane being oriented perpendicular to a rotational axis of said drive output; anda sanding disk being removably attached to said coupler thereby facilitating said sanding disk to be positioned against a surface to be sanded when said weed trimmer is manipulated, said sanding disk being comprised of an abrasive material thereby facilitating said sanding disk to sand the surface.2. The assembly according to claim 1 , wherein:said cup has a basal wall and a perimeter wall extending away therefrom, said perimeter wall being continuously arcuate about a center point of said basal wall such that said cup has a circular shape;said basal wall has a receiver being integrated therein, said receiver being centrally positioned on said basal wall, said receiver receiving said drive output of said weed trimmer such that said cup is rotated about said center point of said basal wall when said weed trimmer is turned on; andsaid perimeter wall has an inwardly facing surface, said inwardly facing surface having ...

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Номер записи: 48
21-03-2019 дата публикации

Adapter for coupling abrasive elements to a floor finishing machine

Номер: US20190084126A1
Автор: Harvey Stark, Pavel Ikonomov
Принадлежит: Diamond Productions Ltd

An adapter clip to be used to mate an abrasive support plate to the drive plate of a floor finishing machine used to grind and/or polish concrete and stone flooring is designed with an internal aperture shaped to conform to and clip onto a protuberance on an upper surface of an abrasive support plate and an external shape to mate with a mounting recess formed on the machine's drive plate.

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Номер записи: 49
25-03-2021 дата публикации

SURFACE NANOGRAIN FOR IMPROVED DURABILITY OF METAL BANDS

Номер: US20210092856A1
Автор: Jou Herng-Jeng, Li Hoishun, Yurko James A.
Принадлежит:

A housing for an electronic device can include a metallic component at least partially defining an external surface of the device. The metallic component can have an average grain size less than 45 nanometers in a first region that extends from the external surface to a depth of at least 100 microns below the external surface, and an average grain size greater than 45 nanometers in a second region adjacent to the first surface. 1. A housing for an electronic device , comprising:a metallic component at least partially defining an external surface of the device;the metallic component having an average grain size less than 45 nanometers in a first region that extends from the external surface to a depth of at least 100 microns below the external surface; andthe metallic component having an average grain size greater than 45 nanometers in a second region adjacent to the first region.2. The housing of claim 1 , wherein:the first region comprises a grain size distribution that transitions from a first average grain size at a portion of the first region adjacent to the external surface to a second average grain size at a portion of the first region adjacent to the second region; andthe second average grain size is larger than the first average grain size.3. The housing of claim 1 , wherein the first region includes less than 1 volume percent of a martensitic phase.4. The housing of claim 1 , wherein the external surface has an average surface roughness of less than 0.1 microns.5. The housing of claim 1 , wherein the metallic component comprises steel.6. The housing of claim 5 , wherein the external surface has a hardness of greater than 3.5 GPa.7. The housing of claim 1 , further comprising a physical vapor deposition (PVD) layer formed over at least a portion of the external surface.8. The housing of claim 7 , wherein an interfacial stress between the first region and the PVD layer during an impact on the PVD layer is less than an interfacial stress between the PVD layer ...

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Номер записи: 50
28-03-2019 дата публикации

GRINDING HEAD FOR FLOOR GRINDING MACHINE COMPRISING AT LEAST ONE BELT PULLEY, FLOOR GRINDING MACHINES AND METHODS

Номер: US20190091830A1
Автор: Adolfsson Samuel, Fogelberg Andreas, Gustavsson Daniel, Ottosson Linus
Принадлежит:

The present disclosure relates to a grinding head for a floor grinding machine for grinding floor surfaces of stone or stone-like material. Such a grinding head comprises a lower casing member, comprising a lower support and an upwardly extending edge portion, and an upper casing member, comprising an upper cover and a downwardly extending edge portion, wherein the upper casing member is joinable to the lower casing member by causing axially distal portions of the edge portions to bear on each other. 118-. (canceled)191100. A grinding head () for a floor grinding machine () for grinding floor surfaces of stone or stone-like material , the grinding head comprising:{'b': 3', '31, 'a lower casing member (), comprising a lower support (),'}{'b': 2', '21, 'an upper casing member (), comprising an upper cover (),'}{'b': '611', 'a first belt pulley (), arranged on an axle extending substantially parallel with an axis of rotation of the grinding head ( ), and'}{'b': 8', '611', '1', '611', '31, 'a second belt pulley (), spaced from the first belt pulley () in a direction perpendicular to the axis of rotation of the grinding head (), and partially overlapping the first belt pulley (), its associated axle and/or its associated bearing, as seen in a plane parallel with the lower support (),'}{'b': 8', '81', '81', '611', '611, 'wherein the second belt pulley () comprises an edge recess (), which is sized and adapted such that when the edge recess () is arranged with its opening towards the axis of rotation of the first belt pulley (), the first belt pulley (), its associated axle and/or its associated bearing is free from said overlap.'}201818. The grinding head () as claimed in claim 19 , wherein the edge recess () extends over a central angle of the second belt pulley () corresponding to less than 30° claim 19 , preferably less than 20° or less than 10° claim 19 , and more than 5°.211848818. The grinding head () as claimed in claim 19 , further comprising an edge portion ...

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Номер записи: 51
28-03-2019 дата публикации

Hand-Held Machine Tool Comprising a Drive Motor

Номер: US20190091848A1
Автор: Nico Walker
Принадлежит: FESTOOL GMBH

A hand-held machine tool, in particular a sanding machine, including a rod-type handle element for the user to grip and a processing head which is moveably mounted on the handle element by means of a joint assembly. The processing head has an electric drive motor for driving a tool holder provided for holding a processing tool and a speed-reducing gearbox between the drive motor and the tool holder, the gearbox being designed to achieve a reduction in speed of an output of the drive motor relative to a speed of the tool holder. The drive motor is a brushless motor and a power supply system for the drive motor is arranged at a distance from the drive motor on the handle element, the power supply system being connected to the drive motor by means of a cable arrangement.

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Номер записи: 52
19-03-2020 дата публикации

WAFER SURFACE BEVELING METHOD, METHOD OF MANUFACTURING WAFER, AND WAFER

Номер: US20200090923A1
Автор: Yamashita Kenji
Принадлежит: SUMCO CORPORATION

Example features relate to a method of polishing a chamfered wafer surface, the method including beveling a wafer to generate the chamfered wafer surface, the chamfered wafer surface being inclined with respect to a main wafer surface by an angle θ; and polishing the chamfered wafer surface with a polishing pad, a polishing surface of the polishing pad being inclined with respect to the chamfered wafer surface by an angle α; wherein the angle α is equal to or smaller than the angle θ. Example features relate to a system for polishing the chamfered surface, the system including a polishing pad mounting jig configured to polish the chamfered surface, an angle θ being defined between the chamfered surface and the main surface; and a polishing pad in contact with the chamfered surface at an angle α during polishing; wherein the angle α is smaller than the angle θ. 1. A method of polishing a chamfered surface of a wafer , the method comprising:beveling the wafer to generate the chamfered surface, the generated chamfered surface being inclined with respect to a main surface of the wafer by an angle θ; andpolishing the chamfered surface with a polishing pad by inclining a longitudinal surface of the polishing pad by an angle α with respect to the chamfered surface during the polishing;wherein the angle α is smaller than the angle θ.2. The method of claim 1 , wherein the angle θ is in a range of 22° or more to 26° or less.3. The method of claim 2 , wherein the polishing the chamfered surface comprises inclining the longitudinal surface of the polishing pad by the angle α in a range of 20° or more.4. The method of claim 1 , wherein the polishing the chamfered surface comprises oscillating the polishing pad in the longitudinal direction thereof via a polishing pad mounting jig claim 1 , the polishing pad being in contact with the wafer at the chamfered surface.5. The method of claim 1 , wherein:the wafer includes a front wafer surface and a rear wafer surface;the beveling the ...

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Номер записи: 53
06-04-2017 дата публикации

SAMPLE CARRIER AND METHOD FOR PROCESSING A SAMPLE

Номер: US20170097291A1
Автор: SELVE Sören
Принадлежит:

The invention relates to a sample carrier for a sample (). Said sample carrier comprises a supporting base (), a carriage () having a receiving region () for the sample (), the carriage () being supported on the supporting base (), a guide (), the carriage () being movably arranged along the guide (), and a disc () that is rotationally movable about an axis of rotation (), said disc being operatively connected to the carriage (), wherein a center () of the disc () is located outside of the axis of rotation (). 115-. (canceled)16. Sample carrier for a sample , comprising:a supporting base;a carriage having a receiving region for the sample, wherein the carriage is supported on the supporting base;a guide, wherein the carriage is arranged for movement along the guide; and a disc operatively connected to the carriage and rotatable about an axis of rotation, wherein a center of the disc is located outside the axis of rotation.17. Sample carrier of claim 16 , further comprising a drive wheel rotatable about a second axis of rotation and operatively connected to the disc claim 16 , wherein a center of the drive wheel is located on the axis of rotation of the disc.18. Sample carrier of claim 17 , wherein the axis of rotation of the rotatable disc coincides with the axis of rotation of the drive wheel.19. Sample carrier of claims 17 , wherein the drive wheel is operatively connected with a rotary drive.20. Sample carrier of claim 16 , wherein the disc or the drive wheel comprise at least partly a magnetic material.21. Sample carrier of claim 16 , wherein the carriage or the guide comprise a non-magnetic material.22. Sample carrier of claim 16 , wherein a sample pad that is transparent at least in one optical spectral region is arranged in the receiving region of the carriage.23. Sample carrier of claim 22 , wherein the sample pad is formed entirely of an optically transparent material.24. Sample carrier of claim 22 , wherein the carriage has an opening in which the sample ...

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Номер записи: 54
09-04-2020 дата публикации

DEVICE FOR ATTACHING DRIVE PLATES TO A POWERED FLOOR POLISHING MACHINE

Номер: US20200108482A1
Автор: Ikonomov Pavel, Stark Harvey
Принадлежит:

A device for attaching abrasive drive plates to the motor driver, rotatable arms of a floor finishing machine so that it can be used to grind and polish hardened concrete has a polygonal shaped driver member to which is affixed at least one abrasive drive plate using spherical bearings on its or their drive shafts so that it is or they are free to both spin and to tilt relative to a vertical axis. A locking cap containing a radial bearing may be affixed to housings for the radial bearings for constraining the drive plate shafts solely to pure rotation about the vertical axis. A plurality of channel members is affixed to an upper surface of the polygonal shaped driver for coupling it to the arms of the floor finishing machine. 1. A device for coupling an abrasive drive plate to a powered floor treating machine comprising:a. a driver member having upper and lower major surfaces;b. a bearing housing affixed to the upper major surface of the driver member;c. a plurality of channels on the upper major surface of the driver member, said channels adapted to connect the driver member to motor driven arms of a powered floor treating machine;d. a cylindrical drive shaft having a longitudinal axis and extending through an aperture formed in the driver member, said drive shaft adapted to be joined to a drive plate, the drive plate having a lower surface with at least one abrasive element affixed thereto;e. a spherical bearing for journaling the drive shaft in the bearing housing whereby the drive shaft may rotate about its longitudinal axis as the shaft angulates through a predetermined arc with respect to the vertical; andf. means selectively attachable to the bearing housing for constraining the drive shaft to rotation about a vertical axis.2. The device of wherein said means comprises a radial bearing having an inner race affixed to an upper end of the drive shaft and a lock cap attached to the bearing housing and to an outer race of the radial bearing.3. The device of and ...

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Номер записи: 55
05-05-2016 дата публикации

Ultrasonic bonding tool, method for manufacturing ultrasonic bonding tool, ultrasonic bonding method, and ultrasonic bonding apparatus

Номер: US20160121424A1
Автор: Akio Yoshida, Masahisa Kogura
Принадлежит: Toshiba Mitsubishi Electric Industrial Systems Corp

An object of the present invention is to provide an ultrasonic bonding tool capable of bonding a lead wire, without any trouble, even to a surface of a thin-film base having a plate thickness of 2 mm or less such as a glass substrate. In the present invention, a surface portion of a chip portion ( 1 c ) of an ultrasonic bonding tool ( 1 ) used in an ultrasonic bonding apparatus has a plurality of planar portions ( 10 ) formed so as to be separated from one another, and a plurality of concavities ( 11 ) formed between the plurality of planar portions. Each of the plurality of planar portions ( 10 ) has a flatness of 2 μm or less.

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Номер записи: 56
03-05-2018 дата публикации

WORKPIECE PROCESSING APPARATUS

Номер: US20180117729A1
Автор: SASAKI Masanao, YASUDA Taichi
Принадлежит: SHIN-ETSU HANDOTAI CO., LTD.

A workpiece processing apparatus including: a center drum that is rotatable around a rotation axis and has at least one first groove formed in the axial direction on the peripheral surface, a carrier having a holding hole to insert and hold a workpiece to be processed, an upper and lower turn table that are rotatable around the rotation axis in a state wherein the carrier holding workpiece is interposed, at least one hook fitted in the upper turn table's internal circumference, with the tip being inserted into the first groove and movable along first groove; wherein the center drum has at least one second groove formed in the axial direction on peripheral surface, and second groove has a length different from that of the first groove and has a supporting surface to support the hook from below at a position above a position where upper turn table processes the workpiece. 15-. (canceled)6. A workpiece processing apparatus comprising:a center drum that is rotatable around a rotation axis and has at least one first groove on the peripheral surface, each first groove being formed in the axial direction;a carrier having a holding hole to insert and hold a workpiece to be processed;an upper turn table and a lower turn table that are rotatable around the rotation axis in a state in which the carrier holding the workpiece is interposed;at least one hook, each hook being fitted in the internal circumference of the upper turn table, with the tip of each hook being inserted into the first groove and movable along the first groove; whereinthe center drum has at least one second groove on the peripheral surface, each second groove being formed in the axial direction; andthe second groove has a length different from that of the first groove and has a supporting surface to support the hook from below at a position above a position where the upper turn table processes the workpiece.7. The workpiece processing apparatus according to claim 6 , wherein the supporting surface of the ...

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Номер записи: 57
04-05-2017 дата публикации

METHODS AND TOOL FOR MAINTENANCE OF HARD SURFACES, AND A METHOD FOR MANUFACTURING SUCH A TOOL

Номер: US20170120411A1
Автор: THYSELL Hakan
Принадлежит: HTC Sweden AB

A method is disclosed for treating or maintaining a hard surface comprising a stone or stone-like material, the method comprising treatment of the surface with a flexible pad, in the presence of abrasive particles, bonded to the pad, on a contact surface between the pad and the hard surface, wherein the abrasive particles comprise diamond particles, and the treatment is performed in the absence of an effective amount of crystallization agent on the contact surface. The treatment is performed on a substantially regular basis, such as daily, weekly or monthly, and the treatment is performed using a pad comprising an open, lofty, three dimensional non-woven webs of fibers. A tool for use in the method is also provided, as well as a floor-surfacing machine comprising such a tool and a method for manufacturing such a tool. Furthermore, methods for treating or maintaining hard, smooth surfaces such as wood, polymer material, lacquer, linoleum, gelcoat, glass and automotive enamel are disclosed. 1. (canceled)2. A method for maintaining a hard , smooth floor surface comprising a polymer material , the method comprising:treating the hard, smooth floor surface with a flexible pad comprising an open, lofty, three dimensional non-woven web of fibers, in the presence of abrasive particles, bonded to the pad, on a contact surface between the pad and the hard, smooth floor surface,wherein the abrasive particles comprise diamond particles of an average diameter of 0.1 to 30 μm, preferably 0.1 to 15 μm or 3 to 6 μm, andwherein treating the hard, smooth floor surface is performed using said pad having:abrasive particles bonded thereto only in a vicinity of the contact surface,the fibers of the flexible pad are bonded to each other by a primary binder and/or via melt-bonding, and have the abrasive particles bonded thereto by a secondary binder,the abrasive particles are present throughout the secondary binder,a first portion of the flexible pad has the abrasive particles present in a ...

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Номер записи: 58
12-05-2016 дата публикации

Cloth taking-up device

Номер: US20160129543A1
Автор: Hui JING, Xiaofeng Wang, Zhubing HUANG
Принадлежит: BOE Technology Group Co Ltd, Hefei Xinsheng Optoelectronics Technology Co Ltd

The invention provides a cloth taking-up device including: a platform, on which glue/cloth to be taken-up are disposed; and a clamp part movable with respect to the platform, which can clamp a roller and roll the glue/cloth to be taken-up successively onto the roller. An outside surface of the platform has an included angle of 0°-180° with respect to the horizontal plane, on which the glue/cloth to be taken-up are disposed, and the clamp part can keep the roller in parallel with the outside surface. The cloth taking-up device can avoid uneven pressure applied to the glue/cloth to be taken-up in the down-press manner, improving uniformity of taken-up glue/cloth. Meanwhile, the foreign matters on the glue/cloth to be taken-up can easily fall off, and the foreign matters on the rollers cannot drop onto the glue/cloth to be taken-up with the rotation, thereby ensuring glue/cloth taking-up quality.

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Номер записи: 59
10-05-2018 дата публикации

Triangular abrasive for floor finishing machine

Номер: US20180126510A1
Автор: Harvey Stark, Pavel Ikonomov
Принадлежит: Diamond Productions Ltd

A drive plate for a concrete or stone grinding/polishing machine includes one or more abrasive elements in the form of short sintered metal bars having diamond crystals mixed therein. Due to the triangular profile of the abrasive elements, as the drive plate is rotated by a drive motor and the apex of the triangular abrasive element engages the floor surface being treated, the abrasive elements are able to more readily strip off mastic, sealers, glue, or most any thin film topical coating present on concrete or other hard floors.

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Номер записи: 60
11-05-2017 дата публикации

METHOD AND APPARATUS FOR STRIPPING AND CLEANING FLOORS

Номер: US20170129067A1
Автор: Young David
Принадлежит:

Floor stripping and buffing methods and apparatus including a circular drive board, at least one pad operationally attached to the circular drive board, and at least one abrasive media embedded in the at least one pad, where the at least one pad has at least one raised pad portion. Other aspects include at least one foam layer between the circular drive board and the at least one pad, where the at least one pad is made of the at least one abrasive media, at least one foam layer between the circular drive board and the at least one pad, at least one mounting adapter formed through the at least one pad, a rotary stripping machine connected to the stripping apparatus via the mounting adapter, at least one heeling weight connected to the stripping machine, and where the at least one media is removable and rechargeable. 1. A floor stripping apparatus , comprising:a circular drive board;at least one pad operationally attached to the circular drive board; andat least one abrasive media embedded in the at least one pad;wherein the at least one pad has at least one raised pad portion.2. The apparatus of claim 1 , further comprising:at least one foam layer disposed between the circular drive board and the at least one pad.3. The apparatus of claim 1 , wherein the at least one pad is made of the at least one abrasive media.4. The apparatus of claim 1 , wherein the at least one raised pad portion is elevated between one-eighth inch and one inch above the at least one pad.5. The apparatus of claim 1 , further comprising:at least one mounting adapter formed through the at least one pad.6. The apparatus of claim 5 , further comprising:a rotary stripping machine operationally connected to the circular drive board via the at least one mounting adapter.7. The apparatus of claim 6 , further comprising:at least one heeling weight operationally connected to the rotary stripping machine.8. The apparatus of claim 1 , wherein the at least one abrasive media is removable and rechargeable.9. ...

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Номер записи: 61
11-05-2017 дата публикации

Abrasive material

Номер: US20170130097A1
Автор: Mikimasa Horiuchi, Ryutaro Kuroda, Yasuhide Yamaguchi
Принадлежит: Mitsui Mining and Smelting Co Ltd

The present invention provides an abrasive material capable of polishing difficult-to-polish silicon carbide at a high degree of surface precision. The present invention relates to an abrasive material including manganese dioxide particles having a non-needle-like shape possessing a ratio of the longitudinal axis to the transverse axis of the particles observed with a scanning electron microscope of 3.0 or less. The abrasive material is preferable if the average particle size D SEM of the longitudinal axis of the observed particles is 1.0 μm or less, and if the particle size D 50 of the volume-based cumulative fraction of 50% in laser diffraction/scattering particle size distribution measurement is 2.0 μm or less.

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Номер записи: 62
01-09-2022 дата публикации

APPARATUS FOR GRINDING SURFACE OF SUBSTRATE

Номер: US20220274223A1
Автор: BAE In Seob, Heo Jung Ho, KANG Sung Il, Kim Hong Chan, Kim I Gyun, KU Jong Hoe
Принадлежит:

A substrate surface grinding apparatus includes: a grinding device including a plurality of grinding rollers configured to grind a surface of a substrate; and a substrate support member configured to support the substrate, wherein rotational axes of the grinding rollers are disposed to be inclined to rotational axes of adjacent grinding rollers. 1. A substrate surface grinding apparatus comprising:a grinding device including a plurality of grinding rollers configured to grind a surface of a substrate; anda substrate support member configured to support the substrate,wherein rotational axes of the grinding rollers are disposed to be inclined to rotational axes of adjacent grinding rollers.2. The substrate surface grinding apparatus of claim 1 , wherein a resin layer is formed on a surface of the substrate claim 1 , and the grinding device removes at least a portion of the resin layer.3. The substrate surface grinding apparatus of claim 1 , wherein the substrate support member is a transfer belt in contact with the substrate.4. The substrate surface grinding apparatus of claim 1 , further comprising:a plurality of support rollers respectively disposed to face the grinding rollers with the substrate therebetween.5. The substrate surface grinding apparatus of claim 4 , wherein arrangement of rotational axes of the support rollers corresponds to arrangement of rotational axes of the grinding rollers respectively facing the rotational axes of the support rollers.6. The substrate surface grinding apparatus of claim 1 , wherein the rotational axes of the adjacent grinding rollers are symmetrically disposed with respect to a virtual line perpendicular to a transfer direction of the substrate. This application is based on and claims priority under 35 U.S.C. § 119 to Korean Patent Application No. 10-2021-0026702, filed on Feb. 26, 2021, in the Korean Intellectual Property Office, the disclosure of which is incorporated by reference herein in its entirety.One or more example ...

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Номер записи: 63
02-05-2019 дата публикации

CLAMPING DEVICE FOR AN ENGINE PARTS GRINDER, AND ITS THREE-POINT CLAMPING STRUCTURE AND PIVOTING CONTROL STRUCTURE

Номер: US20190126416A1
Автор: Chang Feng-Yu
Принадлежит:

A clamping device for an engine parts grinder, and its three-point clamping structure and pivoting control structure. With the three-point clamping structure and the pivoting control structure, the clamping device is capable of clamping the workpiece in a three point clamping manner with a stable clamping force. The pivoting control structure moves in pivoting motion to control the operating member to make the clamping member move downward or upward to clamp or to release the workpiece, and therefore the operation is very simple. Meanwhile, the operating member and the pressing unit provide a one-way self-locking function, and the elastic abutting unit presses against the cam portion of the pressing unit to create a position restricting effect. In addition to providing a stable clamping force, the operating member can be automatically locked when pivoted to a positioning position, which makes the clamping device very convenient to use. 1. A clamping device for an engine parts grinder , comprising:a drive source including a drive toothed wheel sleeved onto and driven by a drive shaft, and two driven toothed wheels engaged with the drive toothed wheel;a base including an assembling shaft portion extending in an axial direction, and an assembling hole extending in the axial direction, wherein a direction perpendicular to the axial direction is defined as a radial direction, the base is connected to the drive source;a three-point clamping structure including a first support member, a second support member and a clamping member, wherein the first support member includes a first shaft and a first abutting wheel located at one end of the first shaft, the first shaft is pivotally inserted through the base and fixed to one of the driven toothed wheels, in such a manner that the first abutting wheel protrudes out of the base, the second support member includes a second shaft and a second abutting wheel located at one end of the second shaft, the second shaft is pivotally ...

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Номер записи: 64
02-05-2019 дата публикации

Floor grinding apparatus having dust sealing rings

Номер: US20190126434A1
Автор: Frank Wehrmann
Принадлежит: Wolff & Co KG GmbH

The present invention relates to a floor grinding apparatus ( 100 ) with a housing ( 110 ) having an interior space ( 111 ) open to one side, a carrier plate ( 120 ) rotatably mounted in the interior space ( 111 ) for receiving abrasives, and drive unit ( 130 ) adapted to rotate the carrier plate ( 120 ), the housing ( 110 ) having an inner dust sealing ring ( 112 ) with at least one recess ( 115 ), wherein the inner dust sealing ring ( 112 ) divides the interior space ( 111 ) into an inner portion ( 113 ) and an outer portion ( 114 ), and wherein the carrier plate ( 120 ) is disposed in the inner portion ( 114 ), at least one extraction opening ( 116 ) disposed in the outer portion ( 114 ), and an outer dust sealing ring ( 117 ) enclosing the interior space ( 111 ), the inner dust sealing ring ( 112 ) and the outer dust sealing ring ( 117 ) being arranged to define a common working plane parallel to the plane of rotation of the carrier plate ( 120 ).

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Номер записи: 65
23-04-2020 дата публикации

APPARATUS FOR RELEASABLY COUPLING ABRASIVE TOOLS TO A DRIVE PLATE OF A FLOOR-TREATING MACHINE

Номер: US20200122286A1
Автор: Gallup Eric, Ikonomov Pavel, Stark Harvey
Принадлежит:

A drive plate attachable to a driven shaft of a floor-finishing machine has a central circular recess and a plurality of radially extending pockets having beveled side edges formed in a surface thereof. Located in the pocket is a rectangular stabilizing bar. The abrasive tool includes a plate sized and shaped to fit into the pockets when inserted from the central recess and having a groove formed therein for receiving the stabilizing bar. On the surface of the tool plate opposite the groove are abrasive members. 1. Apparatus for releasably attaching abrasive tools to a drive plate of floor-treating machines comprising:(a) a circular drive plate having first and second major surfaces with a centrally disposed hub on a first major surface and adapted to be joined to a driven shaft of a floor-treating machine and a central circular recess having a plurality of radially extending pockets formed into the second major surface of the drive plate where the radially extending pockets have inwardly beveled edges extending from the central recess to a peripheral edge of the circular drive plate and where the side edges are also tapered radially, being spaced apart a greater distance at the central recess than at the peripheral edge, said pockets each having a radially extending, rectangular, stabilizing bar extending outward from a floor surface of the pockets; and(b) a plurality of abrasive tools, each comprising a tool plate having first and second major surfaces and with beveled edges, complimentary to the beveled edges of the pockets, the tool plate having abrasive members affixed to its first major surface and a rectangular groove formed inward of the second major surface such that the tool plate can be inserted from the circular recess in the drive plate into the pocket with the stabilizer bar contained within the rectangular groove.2. The apparatus of wherein the tool plate has a trapezoidal shape in a plan view thereof.3. The apparatus of wherein the tool plate is of a ...

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Номер записи: 66
03-06-2021 дата публикации

METHODS AND TOOL FOR MAINTENANCE OF HARD SURFACES, AND A METHOD FOR MANUFACTURING SUCH A TOOL

Номер: US20210162557A1
Автор: THYSELL Hakan
Принадлежит: TWISTER CLEANING TECHNOLOGY AB

A method is disclosed for treating or maintaining a hard surface comprising a stone or stone-like material, the method comprising treatment of the surface with a flexible pad, in the presence of abrasive particles, bonded to the pad, on a contact surface between the pad and the hard surface, wherein the abrasive particles comprise diamond particles, and the treatment is performed in the absence of an effective amount of crystallization agent on the contact surface. The treatment is performed on a substantially regular basis, such as daily, weekly or monthly, and the treatment is performed using a pad comprising an open, lofty, three dimensional non-woven webs of fibers. A tool for use in the method is also provided, as well as a floor-surfacing machine comprising such a tool and a method for manufacturing such a tool. Furthermore, methods for treating or maintaining hard, smooth surfaces such as wood, polymer material, lacquer, linoleum, gelcoat, glass and automotive enamel are disclosed. 1. (canceled)2. A tool for treating a hard surface , the tool comprising:a flexible pad including an active treatment surface; andabrasive particles bonded to the pad, the active treatment surface of the flexible pad presenting the abrasive particles,wherein the flexible pad includes an open, lofty, three-dimensional non-woven web, including a plurality of fibers that are adhered to each other at points of mutual contact,the fibers are bonded to each other by at least one of a primary binder or melt-bonding,the abrasive particles are bonded to the flexible pad by a secondary binder,the abrasive particles are present throughout the secondary binder,the flexible pad includes a first portion in which the abrasive particles are present in a first concentration, and a second portion which is substantially free of abrasive particles, andthe abrasive particles include diamond particles having an average diameter between 0.1 to 30 micrometers.3. The tool according to claim 2 , wherein the ...

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Номер записи: 67
19-05-2016 дата публикации

SUBSTRATE GRINDING AND POLISHING DISK

Номер: US20160136772A1
Автор: Littlefield Dexter Arthur, Littlefield Michael Jay
Принадлежит:

A grinding disk, surfacing platform, apparatus and method adaptable to a rotary concrete surfacing machine. A media disk is pivotally attached to a surfacing platform to maintain a substantially coplanar alignment of an abrasive or polishing media surface and the underlying substrate to be polished. The surfacing platform engages with rotating arms of the machine in operation and may be readily be detached by rotating in the opposite direction of operation. 1. A grinding apparatus , comprising:a connecting shaft;a media holder comprising an aperture defined through a top surface and a bottom surface of the media holder, the media holder pivotally coupled to the connecting shaft through the aperture for pivotal displacement about the connecting shaft; anda media plate attached to the bottom surface of the media holder, the media plate comprising a lower surface comprising one of a grinding media, an abrasive media, or a polishing media.2. The apparatus of claim 1 , further comprising:a magnet disposed in the media holder; anda ferrous material attached to an upper surface of the media plate, wherein the media plate is removably attached to the media holder via magnetic attraction with the magnet.3. The apparatus of claim 1 , further comprising:a magnet disposed in the media holder; andthe media plate is comprised of a ferrous material, and is removably attached to the media holder via magnetic attraction with the magnet.4. The apparatus of claim 1 , wherein the media plate comprises a substantially circular disk.5. The apparatus of claim 1 , wherein the media plate further comprises:a tapered edge defined around the periphery of a lower portion of the media plate.6. The apparatus of claim 4 , wherein the media plate further comprises:a plurality of radially extending channels defined in a bottom surface of the disk.7. The apparatus of claim 1 , further comprising:a hemispherical nut operatively coupled to the connecting shaft, the hemispherical nut comprising an ...

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Номер записи: 68
21-05-2015 дата публикации

HORIZONTAL DOUBLE DISC SURFACE GRINDING MACHINE

Номер: US20150140908A1
Автор: YOSHIZURU Shoji
Принадлежит: DAISHO SEIKI CORPORATION

A horizontal double disc surface grinding machine of through field type wherein a plate work in vertical posture is induced between grinding wheels by V-belts and work guiding plates. A work falling prevention member is disposed in a work transfer area. The work falling prevention member is provided with an upper plate, a middle plate, and a lower plate, and the middle plate is inserted to a gap between V-belt single bodies. 1. A horizontal double disc surface grinding machine of through field type wherein a plate work in vertical posture is induced between grinding wheels by V-belts and work guiding plates comprising a work falling prevention member disposed in a work transfer area from the V-belt to the work guiding plate.2. A horizontal double disc surface grinding machine of through field type provided with a pair of endless V-belts , holding a plate work in vertical posture on left and right and giving feed , and a pair of work guiding plates , receiving and guiding the work in vertical posture between grinding wheels , comprising a construction in which:a work falling prevention member is disposed in a work transfer area from the V-belt to the work guiding plate; andthe work falling prevention member is provided with a work falling prevention guiding face to connect a work holding line straight in top view and formed with a pressing face on which the V-belts hold the work to a guiding line straight in top view and formed with a sliding face on which the work guiding plate slides on the work.3. The horizontal double disc surface grinding machine as set forth in claim 2 , wherein:each of the endless V-belts is composed of plural units disposed on upper and lower positions to be parallel with a predetermined gap;a slit portion is formed on each of the work guiding plates from an upstream end portion;the work falling prevention member has a middle plate, inserted to the gap and the slit portion, and an upper plate and a lower plate disposed near an upper face and ...

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Номер записи: 69
18-05-2017 дата публикации

WORKPIECE DOUBLE-DISC GRINDING METHOD

Номер: US20170136596A1
Автор: USAMI Yoshihiro
Принадлежит: SHIN-ETSU HANDOTAI CO., LTD.

The present invention is a workpiece double-disc grinding method including supporting a sheet workpiece along a circumferential direction from an outer circumference side of the workpiece by a ring holder, and simultaneously grinding both surfaces of the workpiece supported by the ring holder with a pair of grinding wheels while rotating the ring holder, wherein the surfaces of the workpiece are simultaneously ground such that a wear amount of the grinding wheels per 1 μm of a grinding stock removal of the workpiece ranges from 0.10 μm to 0.33 μm. This workpiece double-disc grinding method can reduce nanotopography formed in previous steps such as a slicing step without degrading the flatness in the double-disc grinding step. 13-. (canceled)4. A workpiece double-disc grinding method comprising:supporting a sheet workpiece along a circumferential direction from an outer circumference side of the workpiece by a ring holder; andsimultaneously grinding both surfaces of the workpiece supported by the ring holder with a pair of grinding wheels while rotating the ring holder, whereinthe surfaces of the workpiece are simultaneously ground such that a wear amount of the grinding wheels per 1 μm of a grinding stock removal of the workpiece ranges from 0.10 μm to 0.33 μm.5. The workpiece double-disc grinding method according to claim 4 , wherein the grinding wheels are vitrified bond grinding wheels disposed on an outer circumference of an annular core.6. The workpiece double-disc grinding method according to claim 4 , wherein the wear amount of the grinding wheels per 1 μm of the grinding stock removal of the workpiece is calculated by dividing a grinding-wheel wear amount by the grinding stock removal that is a difference in workpiece thickness between before and after grinding claim 4 , the grinding-wheel wear amount being determined from a change in position of the grinding wheels that advance during grinding.7. The workpiece double-disc grinding method according to claim ...

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Номер записи: 70
08-09-2022 дата публикации

Long rod grinding machine

Номер: US20220281067A1
Автор: Fumihide Sugita
Принадлежит: Makita Corp

A long rod grinding machine reduces the likelihood of dust escaping and falling. The long rod grinding machine includes a head and a rod having an end connected to the head and extending in a front-rear direction. The head includes an electric motor, a pad movable with a driving force from the electric motor, a vertical wall surrounding a radially outer edge of the pad, and a contact member located between the vertical wall and the pad and surrounding the radially outer edge of the pad. The contact member includes a brush holder having one or more through-holes extending in a radial direction of the pad, and a brush located below the brush holder and having a lower end located downward from a lower end of the vertical wall.

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Номер записи: 71
28-05-2015 дата публикации

DOUBLE-DISC GRINDING APPARATUS AND WORKPIECE DOUBLE-DISC GRINDING METHOD

Номер: US20150147944A1
Автор: Kobayashi Kenji
Принадлежит: SHIN-ETSU HANDOTAI CO., LTD.

The invention is directed to a double-disc grinding apparatus including: a rotatable ring holder configured to support a sheet workpiece along a circumferential direction from an outer circumference side of the workpiece; a pair of grinding wheels for grinding surfaces of the workpiece supported by the ring holder; and a hydrostatic bearing for supporting the ring holder without contact from both of a direction of a rotational axis of the ring holder and a direction perpendicular to the rotational axis by hydrostatic pressure of fluid supplied from both directions, wherein supply pressures at which the fluid is supplied from the direction of the rotational axis and from the direction perpendicular to the rotational axis can be independently controlled. The invention provides a double-disc grinding apparatus and a workpiece double-disc grinding method that can improve variation in nanotopography depending on the lot of workpieces or grinding wheels to obtain nanotopography stably. 1. A double-disc grinding apparatus comprising:a rotatable ring holder configured to support a sheet workpiece along a circumferential direction from an outer circumference side of the workpiece;a pair of grinding wheels for simultaneously grinding both surfaces of the workpiece supported by the ring holder; anda hydrostatic bearing for supporting the ring holder without contact from both of a direction of a rotational axis of the ring holder and a direction perpendicular to the rotational axis by hydrostatic pressure of fluid supplied from both the directions, whereinsupply pressures at which the fluid is supplied from the direction of the rotational axis and from the direction perpendicular to the rotational axis can be independently controlled.2. The double-disc grinding apparatus according to claim 1 , wherein the supply pressures at which the fluid is supplied can be controlled such that a degree of rigidity A is 200 gf/μm or less and a degree of rigidity B is 800 gf/μm or more claim 1 ...

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Номер записи: 72
14-08-2014 дата публикации

FLOOR GRINDING/POLISHING MACHINE WITH GIMBAL-MOUNTED GRINDING/POLISHING HEAD

Номер: US20140227949A1
Автор: Popov Georgi, Popov Miroslav
Принадлежит:

A floor grinding/polishing machine with a gimbal-mounted grinding/polishing head is disclosed. The floor grinding/polishing machine includes a wheeled carriage, a handle attached to the carriage for controlling the wheeled carriage, a grinding/polishing head attached to the wheeled carriage, and a motor supported on the grinding/polishing head for driving one or more abrasive discs on the bottom of the grinding/polishing head. The grinding/polishing head mounts to the wheeled carriage with a gimbal mount, allowing fore-and-aft pivoting of the head, as well as side-to-side pivoting of the head relative to the wheeled carriage. 1. A floor grinding and/or polishing machine comprising:a wheeled carriage;a handle attached to the carriage for controlling the wheeled carriage;a grinding/polishing head;a motor supported on the grinding/polishing head; anda gimbal mount movably connecting the grinding/polishing head to the wheeled carriage and allowing both fore-and-aft pivoting of the grinding/polishing head relative to the wheeled carriage and side-to-side pivoting of the grinding/polishing head relative to the wheeled carriage.2. The floor grinding and/or polishing machine of claim 1 , wherein the gimbal mount includes a hoop-like gimbal frame claim 1 , a first pair of pivot pins pivotally securing the hoop-like gimbal frame to the wheeled carriage and a second pair of pivot pins pivotally securing the hoop-like gimbal frame to the grinding/polishing head.3. The floor polishing machine of claim 2 , wherein the hoop-like gimbal frame includes a first U-shaped portion and a second U-shaped portion removably bolted to the first U-shaped portion.4. A floor polishing machine comprising:a wheeled carriage;a handle attached to the carriage for controlling the wheeled carriage;a grinding/polishing head attached to the wheeled carriage;a motor supported on the polishing head for driving at least one abrasive disc on the underside of the polishing head; anda multi-axis mount for ...

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Номер записи: 73
22-09-2022 дата публикации

GRINDING APPARATUS

Номер: US20220297253A1
Автор: OBAYASHI Eiji, TAKAMATSU Junichi
Принадлежит: ASAHI-SEIKI MANUFACTURING CO., LTD.

A grinding apparatus includes: a pair of rotary grindstones, a rotary base rotationally driven around a first rotation axis, a rotary table included in the rotary base, a fixed base rotatably supporting the rotary base, a fixed table included in the fixed base, a plurality of workpiece supporting tables supported on the rotary base and rotationally driven around a second rotation axis, a plurality of workpiece receiving holes vertically passing through an outer edge part of the workpiece supporting tables, a first motor fixed to the fixed base to rotationally drive the rotary table, a plurality of second motors fixed to the rotary base to rotationally drive the workpiece supporting tables, a controller driving the first motor and the plurality of second motors, and a slip ring disposed below the plurality of second motors and conductively connecting between the controller and the plurality of second motors. 1. A grinding apparatus that grinds an upper end and a lower end of a workpiece , the grinding apparatus comprising:a pair of rotary grindstones facing each other in a vertical direction, wherein the workpiece is made to pass through between the pair of rotary grindstones, and the upper end and the lower end of the workpiece are ground;a rotary base that is rotationally driven around a first rotation axis parallel to the vertical direction;a rotary table included in the rotary base and having an upper surface flush with an upper surface of a lower grindstone of the pair of rotary grindstones;a fixed base that rotatably supports the rotary base;a fixed table that is included in the fixed base, surrounds the rotary table, has a cutout receiving part of the lower rotary grindstone, and has an upper surface flush with the upper surface of the lower rotary grindstone;a plurality of workpiece supporting tables supported at a plurality of positions, around the first rotation axis, on the rotary base and each of which being rotationally driven around a center that is one ...

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Номер записи: 74
08-06-2017 дата публикации

GRINDING APPARATUS AND GRINDING METHOD

Номер: US20170157740A1
Автор: NISHIMURA Yoshinobu
Принадлежит: SUMCO CORPORATION

A double-head grinding machine includes: a spindle driving portion configured to rotate a spindle to which a grinding wheel is attachable; a moving portion configured to move the spindle driving portions toward and away from a wafer; and an inclination measuring portion configured to measure a change in an inclination of the spindle in association with a movement of the spindle driving portions. 1. A grinding machine comprising:a grinding wheel configured to grind an object;a spindle driving portion configured to rotate a spindle to which the grinding wheel is attachable;a moving portion configured to move the spindle driving portion toward and away from the object; andan inclination measuring portion configured to measure a change in an inclination of the spindle in association with a movement of the spindle driving portion.2. The grinding machine according to claim 1 , whereinthe spindle driving portion is attached with a measurement member having a flat to-be-measured surface, andthe inclination measuring portion is configured to measure a change in an inclination of the to-be-measured surface as the change in the inclination of the spindle.3. The grinding machine according to claim 1 , further comprising:a condition judging portion configured to judge whether or not the moving portion is in an abnormal condition based on a measurement result of the inclination measuring portion; anda notifier configured to notify an operator of a judgment result of the condition judging portion.4. A grinding method of grinding an object with a grinding wheel claim 1 , the grinding method comprising:moving toward the object a spindle driving portion configured to rotate a spindle to which the grinding wheel is attachable;rotating the spindle by the spindle driving portion to grind the object with the grinding wheel;moving the spindle driving portion away from the object; andmeasuring a change in an inclination of the spindle in association with a movement of the spindle driving ...

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Номер записи: 75
21-05-2020 дата публикации

TOOL ATTACHMENT MEANS FOR POWER TROWELS

Номер: US20200156214A1
Автор: Renneson Martin, Tchakarov Tchavdar V.
Принадлежит:

A tool driver for a power trowel, the tool driver comprising a combination of a magnetic fastening arrangement and a hook and loop based fastening arrangement for releasably holding an abrasive tool to the tool driver, wherein the magnetic fastening arrangement is configured symmetrically around a rotational center of the tool driver, wherein the hook and loop based fastening arrangement is adapted to provide increased shear strength during abrasive operation of the tool, and wherein the magnetic fastening arrangement is adapted to provide increased pull strength during lifting of the tool driver. 1. A tool driver for a power trowel , the tool driver comprising a combination of a magnetic fastening arrangement and a hook and loop based fastening arrangement for releasably holding an abrasive tool to the tool driver , wherein the magnetic fastening arrangement is configured symmetrically around a rotational center of the tool driver , wherein the hook and loop based fastening arrangement is adapted to provide increased shear strength during abrasive operation of the tool , and wherein the magnetic fastening arrangement is adapted to provide increased pull strength during lifting of the tool driver.2. The tool driver according to claim 1 , wherein the hook and loop based fastening arrangement comprises a material with hooks for holding respective loops on the abrasive tool.3. The tool driver according to claim 1 , wherein the hook and loop based fastening arrangement comprises a material with loops for holding respective hooks on the abrasive tool.4. The tool driver according to claim 3 , wherein the material with loops is a felt-like cloth claim 3 , a fibrous material claim 3 , a foam claim 3 , rubber claim 3 , and/or a non-synthetic material.5. The tool driver according to claim 1 , wherein the magnetic fastening arrangement comprises a plurality of magnets arranged symmetrically around a rotational center of the tool driver.6. The tool driver according to claim 1 , ...

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Номер записи: 76
01-07-2021 дата публикации

ASSEMBLY AND METHOD FOR LOADING PARTS TO BE TREATED IN A SINGLE-SIDE OR DOUBLE-SIDE TREATMENT MACHINE

Номер: US20210197336A1
Автор: MOLLARD Doniphan, MUNIER Denis
Принадлежит:

The invention relates to an assembly for loading parts to be treated into a single-side or double-side treatment machine, comprising—a part holder in the form of a plate for holding at least one part to be treated, comprising a second side and first side, said first side being flat, and said part holder delimiting at least one through-hole forming a cell for housing at least one part to be treated, and a film mounted on the first side of the part holder opposite said through-hole, allowing said part to be treated to be held at least during the loading step. 1. An assembly for loading parts to be treated in a single-side or double-side treatment machine comprising:a part holder in the form of a plate for holding at least one part to be treated, comprising a second side and a first side, said first side being flat, and said part holder defining at least one through-hole forming a cell for accommodating at least one part to be treated, anda film mounted on the first side of the part holder opposite said through-hole and making it possible to hold said part to be treated at least during the loading step, said film being suitable for being destroyed during the treatment by the treatment machine.2. The loading assembly as claimed in claim 1 , in which said film is suitable for being destroyed by dissolving or by friction.3. The loading assembly as claimed in claim 1 , in which the part holder includes several cells and in which said film covers all of the cells.4. The loading assembly as claimed in claim 1 , in which the film is soluble claim 1 , preferably water-soluble.5. The loading assembly as claimed in claim 1 , in which the part holder has a circular outline and a center.6. The loading assembly as claimed in claim 5 , in which the part holder is a planet gear comprising a toothed outline.7. The loading assembly as claimed in claim 5 , in which the part holder includes cells distributed evenly about the center.8. The loading assembly as claimed in claim 1 , in which ...

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Номер записи: 77
21-06-2018 дата публикации

GRINDING MACHINE FOR GRINDING A SURFACE OF A WORKPIECE

Номер: US20180169823A1
Автор: HEESEMANN Jürgen
Принадлежит:

The invention relates to a grinding machine for grinding a surface of a workpiece, wherein the grinding machine comprises a plurality of grinding elements () and at least one drive device, by means of which the plurality of grinding elements () can be set in oscillatory motion, wherein the grinding machine comprises at least two supporting structures (), on which at least one grinding element () is arranged and which can be moved in an oscillatory manner in directions opposite each other by the at least one drive device. 1. A grinding machine for grinding a surface of a workpiece , comprising:a plurality of grinding elements;at least one drive device which is configured for bringing the plurality of grinding elements into an oscillating motion; andat least two carrying structures on each of which at least one grinding element of the plurality of grinding elements is disposed, and wherein the at least two carrying structures are movable in oscillating fashion in opposite directions by the at least one drive device.2. The grinding machine as claimed in claim 1 , wherein the at least one drive device has a pivot element on which claim 1 , at two different positions claim 1 , the at least two carrying structures are disposed in such a manner that they are movable in opposite directions by an oscillating pivoting movement of the pivot element.3. The grinding machine as claimed in claim 1 , wherein the at least on drive device has a rotary element on which the at least two carrying structures are disposed by a conversion device in such a manner that the conversion device converts a rotary movement of the rotary element into opposite transverse movements of the at least two carrying structures.4. The grinding machine as claimed in wherein one or more of the plurality of grinding elements are wire cup brushes which are mounted rotatably about an axis of rotation.5. The grinding machine as claimed in claim 4 , further comprising at least one rotary drive is disposed on each ...

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Номер записи: 78
06-06-2019 дата публикации

Flexible sanding device for cylinder rock specimen

Номер: US20190168357A1
Автор: Chunwang Zhang, Guorui FENG, Shengyong HU, Tingye QI, Xuanmin SONG, Yujiang ZHANG, ZHEN Li, Zhixin JIN
Принадлежит: TAIYUAN UNIVERSITY OF TECHNOLOGY

A rock sanding device includes a base, a bottom sanding plate, an adjustable connecting rod, an elastic loader, a connector, a side sanding brush, a top sanding plate, an inner rod, a prong and a drill rod. The top of the drill rod is fixedly connected with the rotating shaft of the external water drilling rig and the external water drilling rig has a water inlet joint to introduce water into the drill rod. The inner rod and drill rod are connected and fixed coaxially, and the bottom of the drill rod is symmetrically welded with four prongs. The rock specimen is placed in the center of the side sanding brush. The top sanding plate and the bottom sanding plate are provided in the top side and bottom side of the rock specimen, respectively.

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Номер записи: 79
28-05-2020 дата публикации

METHOD OF ABRADING A TEST TRACK WITH A BITUMINOUS SURFACE

Номер: US20200164479A1
Автор: CORMIER PIERRE, MAHE JEROME, PEYRIN FREDERIC
Принадлежит:

A method for breaking in the surface condition of an asphalt test track for vehicles, comprising: modifying the condition of the surface of the test track with a treatment machine; placement on the treatment machine () of at least one rotary abrasive disc (); and moving the treatment machine on the test track so as to reduce the friction coefficient to achieve a friction level corresponding to that of a broken-in track. 114.-. (canceled)15. A method for breaking in a surface condition of an asphalt test track for vehicles , comprising:(a) modifying the surface condition of the test track with a treatment machine comprising a rotary head bearing at least one friction element; and(b) moving the treatment machine on the test track to reduce a friction coefficient to achieve a friction level corresponding to a target value,wherein the at least one friction element is an abrasive disc.16. The method according to further comprising the step of hydrostripping the test track before step (a) to eliminate a bituminous binder on a surface of aggregates.17. The method according to claim 15 , wherein the abrasive disc comprises bristles impregnated with abrasive particles.18. The method according to claim 17 , wherein the bristles have a height greater than 15 mm.19. The method according to claim 17 , wherein a form factor of the bristles is between 1/50 and 1/10.20. The method according to claim 17 , wherein the abrasive particles are selected from the group consisting of silicon carbide (SiC) claim 17 , ceramic and tungsten carbide type.21. The method according to claim 15 , wherein a speed of rotation of the abrasive disc is between 1000 and 1500 revolutions/minute.22. The method according to claim 21 , wherein the speed of rotation of the abrasive disc is about 1200 revolutions/minute.23. The method according to claim 15 , wherein a speed of movement of the treatment machine is between 0.5 and 12 meters/minute.24. The method according to claim 23 , wherein the speed of ...

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Номер записи: 80
08-07-2021 дата публикации

APPARATUS AND METHOD FOR DOUBLE-SIDE POLISHING WORKPIECE

Номер: US20210205949A1
Автор: KUBOTA Mami, NONAKA Eisuke, Takanashi Keiichi, Taniguchi Tetsurou
Принадлежит: SUMCO CORPORATION

Provided are a double-side polishing apparatus and a double-side polishing method which can terminate double-side polishing of a workpiece so that the workpiece will have a desired shape even when double-side polishing of the workpiece is performed repeatedly. The control means determines, from a reference time point determined based on the amplitude of the change of the temperature of the carrier plate, an offset time for the next batch during which additional double-side polishing is performed; and terminates double-side polishing after a lapse of the determined offset time from the reference time point. The offset time is determined based on a predicted value of the shape index of the workpiece in the next batch, predicted from the actual value of the shape index of the workpiece having been double-side polished in one or more previous batches and from difference of the offset time between batches. 1. An apparatus for double-side polishing a workpiece , including a carrier plate in which one or more retainer openings each for retaining a workpiece to be polished are formed , and an upper polishing plate and a lower polishing plate that make a pair between which the carrier plate is sandwiched , comprising:a temperature measurer that measures a temperature of the carrier plate; anda controller that controls an amount of polishing removal of the workpiece,wherein the controller determines, from a reference time point for determining a termination point of double-side polishing determined based on amplitude of change of temperature of the carrier plate measured using the temperature measurer, an offset time for a next batch that is a time during which additional double-side polishing is performed; and terminates double-side polishing of the workpiece after a lapse of the determined offset time from the reference time point, andthe offset time is determined based on a predicted value of a shape index of the workpiece to be double-side polished in the next batch, ...

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Номер записи: 81
28-06-2018 дата публикации

METAL PLATE, PATTERNING APPARATUS AND PATTERNING METHOD USING THE SAME

Номер: US20180178344A1
Автор: KIM Sung Wook, KIM Young Tae, KWAK Jin O, SUNG Do Soo
Принадлежит:

Disclosed herein are a metal plate including a plurality of pattern portions, a patterning apparatus configured to form a plurality of patterns on the metal plate, and a patterning method using the same. The metal plate to be used in a household appliance includes a plurality of pattern portions in which a hairline pattern is formed on a surface of the metal plate, wherein the plurality of pattern portions includes a first pattern portion having a first hairline pattern and a second pattern portion having a second hairline pattern different from the first hairline pattern. 1. A metal plate to be used in a household appliance , the metal plate comprising:a plurality of pattern portions, in which a hairline pattern is formed, on a surface of the metal plate,wherein the plurality of pattern portions includes a first pattern portion having a first hairline pattern and a second pattern portion having a second hairline pattern different from the first hairline pattern.2. The metal plate according to claim 1 , wherein the plurality of pattern portions have widths different from each other.3. The metal plate according to claim 2 , wherein the first hairline pattern and the second hairline pattern are formed in a first direction claim 2 , and the first pattern portion and the second pattern portion are arranged in a second direction perpendicular to the first direction.4. The metal plate according to claim 3 , wherein the first pattern portion and the second pattern portion are alternately arranged.5. The metal plate according to claim 1 , wherein at least one of the plurality of pattern portions is formed to be inclined.6. The metal plate according to claim 1 , wherein the first pattern portion and the second pattern portion are spaced apart from each other.7. The metal plate according to claim 6 , wherein a plurality of first pattern portions and a plurality of second pattern portions are provided claim 6 , and an adjacent pair of the first pattern portion and the second ...

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Номер записи: 82
18-09-2014 дата публикации

Double-Sided Polishing of Hard Substrate Materials

Номер: US20140273760A1
Автор: "ODonnell John M.", Goldstein Samuel J., III Stephen M., MILLER
Принадлежит: II-VI Incorporated

Disclosed is a method and apparatus for simultaneously polishing both surfaces of an optical substrate. An upper platen and a lower platen, each covered with a polishing pad material and at least one carrier having an aperture for holding the optical substrate between the platens are provided. The location of the aperture of the carrier is set such that the center of the optical substrate is offset from the center of the carrier and at least a portion of the outer perimeter of the optical substrate extends outwardly beyond at least a portion of at least one of the outer perimeter and the inner perimeter of the platens. The platens are rotated with respect to the carrier, and the carrier is rotated with respect to the platens to polish the optical substrate. The location of the aperture of the carrier is adjustable. 1. A method for simultaneously polishing both surfaces of an optical substrate comprising:providing an upper platen and a lower platen, each covered with a polishing pad material;providing at least one carrier having an aperture for holding the optical substrate between the upper platen and the lower platen and adapted to allow the polishing pad material of the upper platen and the lower platen to simultaneously contact an upper surface and a lower surface of the optical substrate, respectively;setting a first location of the aperture of the carrier such that a center of the optical substrate is offset from a center of the carrier and at least a portion of an outer perimeter of the optical substrate extends outwardly beyond at least a portion of at least one of an outer perimeter and an inner perimeter of the upper platen and the lower platen;rotating the upper platen and the lower platen with respect to the carrier; androtating the carrier with respect to the upper platen and the lower platen.2. The method of claim 1 , wherein at least a portion of the outer perimeter of the optical substrate extends beyond at least a portion of at least one of the outer ...

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Номер записи: 83
15-07-2021 дата публикации

SURFACE PROCESSING METHOD OF DISK MEMBER OF SEALING APPARATUS, AND SEALING APPARATUS

Номер: US20210215200A1
Автор: Inoue Masahiko, SAKANO Yuya, YONAI Hisato
Принадлежит: NOK CORPORATION

A sealing apparatus which is capable of preventing static leakage of a target to be sealed without increasing sliding resistance with respect to a shaft, and a surface processing method of a disk member of the sealing apparatus which is capable of processing a surface of the disk member, such as a slinger, provided at the sealing apparatus. A surface processing method of a disk member of a sealing apparatus for forming a plurality of fine spiral grooves on a surface of the disk member provided at the sealing apparatus has a grinding member having a plurality of fine projections that is moved to an outer edge side while the grinding member is pressed against the surface of the disk member which relatively rotates around an axis, and the sealing apparatus includes a slinger at which a plurality of fine spiral grooves are randomly formed on another side surface of a flange portion. 1. A surface processing method of a disk member of a sealing apparatus for forming a plurality of fine spiral grooves on a surface of the disk member provided at the sealing apparatus , the surface processing method comprising:moving a grinding member having a plurality of fine projections to an outer edge side while pressing the grinding member against the surface of the disk member which relatively rotates around a shaft.2. The surface processing method of the disk member of the sealing apparatus according to claim 1 ,wherein a surface of the grinding member, which abuts on the surface of the disk member is a polishing material.3. The surface processing method of the disk member of the sealing apparatus according to claim 1 ,wherein, after the disk member rotates one or more revolutions while the grinding member is pressed against the surface of the disk member, the grinding member is moved to the outer edge side of the disk member.4. The surface processing method of the disk member of the sealing apparatus according to claim 1 ,wherein the disk member is a slinger which is provided at the ...

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Номер записи: 84
05-07-2018 дата публикации

Method and device for removing material from a substrate

Номер: US20180185976A1
Автор: Daniel L. Toberman, David L. Fritsche, Michael R. Miller, Robert M. Wolf
Принадлежит: Boeing Co

A material removal device for removing material from a substrate includes a holder extending between first and second sides and a grinding wheel supported by the holder and being operable to remove the material from the substrate. The holder has a guide frame at the first side and a support frame at the second side. The guide frame has a first bottom surface and the support frame has a second bottom surface. The first and second bottom surfaces are vertically offset from each other. The grinding wheel has an axle supported by the guide frame and the support frame. The grinding wheel has a grinding surface located below the first bottom surface and above the second bottom surface.

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Номер записи: 85
22-07-2021 дата публикации

ROTOR DISK AND DOUBLE-SIDED PROCESSING MACHINE FOR PROCESSING AT LEAST ONE WORKPIECE AND ASSOCIATED METHOD

Номер: US20210220963A1
Автор: Kanzow Jörn, MØLLER Helge
Принадлежит: Lapmaster Wolters GmbH

A rotor disk for guiding workpieces in a double-sided processing machine including a fluid feeding apparatus to feed a processing fluid into a working gap between a first working disk and a second working disk is provided. The rotor disk comprises a surface defining at least one workpiece opening configured to receive at least one workpiece to be processed on both sides in the double-sided processing machine in a material-removing manner using the processing fluid. A contact angle of a drop of the processing fluid with the surface is at least 60°. 1. A rotor disk for guiding workpieces in a double-sided processing machine including a fluid feeding apparatus to feed a processing fluid into a working gap between a first working disk and a second working disk , the rotor disk comprising:a surface defining at least one workpiece opening configured to receive at least one workpiece to be processed on both sides in the double-sided processing machine in a material-removing manner using the processing fluid, wherein a contact angle of a drop of the processing fluid with the surface is at least 60°.2. The rotor disk according to claim 1 , wherein the contact angle of the drop of the processing fluid is not more than 90°.3. The rotor disk according to claim 1 , wherein the contact angle of the drop of the processing fluid is not more than 75°.4. The rotor disk according to claim 1 , wherein the surface of the rotor disk is roughened.5. The rotor disk according to claim 1 , wherein the surface of the rotor disk is covered with a coating.6. The rotor disk according to claim 5 , wherein the coating is a DLC coating.7. A double-sided processing machine comprising:a first working disk comprising a first working surface;a second working disk comprising a second working surface, wherein the first and second working surfaces delimit a working gap between them, and wherein at least one of the first working disk and the second working disk is configured to be rotatingly driven;a fluid ...

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Номер записи: 86
12-07-2018 дата публикации

RIDE-ON ACTIVE PLANETARY CONCRETE GRINDER

Номер: US20180193977A1
Автор: Clay Tommy
Принадлежит:

The invention comprises a new and improved device, system and method of using a ride-on planetary power grinder that may utilize a ride-on power trowel having at least two rotors, at least three arms to the respective at least two rotors, and at least two head assemblies with at least two disc pads for grinding and or polishing. 1a ride-on power trowel body with a skirt having a top and a bottom and further having;a first rotor assembly on said bottom of said skirt adapted to rotate in a clockwise direction having at least 3 arms each having a distal end with a rotationally attached head assembly adapted to spin counterclockwise and wherein said head assembly has at least three disc pads adapted to grind and polish cement;a first rotatable sprocket fixed on said bottom of said skirt;a first chain adapted to rotate said at least three assembly of said first rotor assembly in a counterclockwise direction and in communication with said first rotatable sprocket;a second rotor assembly on said bottom of said skirt adapted to rotate in a counter clockwise direction having at least 3 arms each having a distal end with a rotationally attached head assembly adapted to spin clockwise and wherein said head assembly having at least three disc pads adapted to grind and polish cement;a second rotatable sprocket fixed on said bottom of said skirt; anda second chain adapted to rotate said at least three assembly of said first rotor assembly in a clockwise direction and in communication with said first rotatable sprocket.. A planetary grinder and polisher for grinding and polishing cement slabs comprising: Priority is claimed from U.S. Provisional Patent Application Ser. No. 62/445,351 filed on Jan. 12, 2017 and incorporated by reference herein.In general, the present invention relates to power grinders associated with grinding concrete slabs into a polished surface. More particularly, the present invention relates to a new and improved device, system and method of using active ...

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Номер записи: 87
13-07-2017 дата публикации

Floor surfacing machine

Номер: US20170197289A1
Автор: Joakim Leff-Hallstein, Johan Berg, Lars FREIDLITZ, Magnus ROSÉN, Pär Madbro
Принадлежит: HUSQVARNA AB

The present invention relates to a floor surfacing machine comprising a frame that is carried by a first wheel and a second wheel. The floor surfacing machine further comprises a first motor, a handle arrangement, at least one planetary head that is rotatably mounted to the frame and at least one satellite surfacing head that is rotatably mounted to the planetary head, where the first motor is arranged to propel the planetary head. The floor surfacing machine comprises a first control unit, and a remote control panel which in turn comprises a second control unit) that is arranged to communicate with the first control unit. The floor surfacing machine also comprises a second motor that is arranged to propel the satellite surfacing heads such that the planetary head and the satellite surfacing heads are independently operable.

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Номер записи: 88
13-07-2017 дата публикации

METHOD AND APPARATUS FOR COUPLING TWO WHEELED VEHICLES

Номер: US20170197291A1
Автор: Pollitt Patrick, Yagur Ron
Принадлежит:

A method and apparatus are provided for coupling a first and second wheeled vehicle. The apparatus includes a first area with a stop to engage an undersurface of the first wheeled vehicle and a second area with spaced apart openings to receive wheels of the second vehicle. The apparatus also includes a hook member positioned between the first and second areas and including surfaces to engage a perimeter of the frame of the first wheeled vehicle. The method includes engaging a perimeter of the frame of the first wheeled vehicle with the hook member. The method further includes rotating the stop about an engagement point between the hook member and the frame of the first wheeled vehicle until the stop engages an undersurface of the frame. The method further includes positioning a pair of wheels of the second vehicle in the spaced apart openings. 1. An apparatus for coupling a first wheeled vehicle to a second wheeled vehicle , comprising: a first area including a stop configured to engage an undersurface of a frame of the first wheeled vehicle; a second area including a pair of spaced apart openings , said pair of spaced apart openings having a separation and a dimension sized to receive a pair of wheels of the second wheeled vehicle; and a hook member positioned between the first area and the second area , said hook member including a plurality of surfaces configured to engage a perimeter of the frame of the first wheeled vehicle.2. The apparatus of claim 1 , wherein the first wheeled vehicle is a vacuum and the second wheeled vehicle is a pre-separator.3. The apparatus of claim 1 , wherein the hook member is an L-shaped member including two surfaces that are orthogonal to each other.4. The apparatus of claim 3 , wherein the stop is a flat surface that is oriented parallel to at least one of the two surfaces of the L-shaped member.6. The apparatus of claim 1 , wherein a length of the stop is less than a length of the hook member and wherein the length of the stop is ...

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Номер записи: 89
27-06-2019 дата публикации

METHOD AND DEVICE FOR REMOVING MATERIAL FROM A SUBSTRATE

Номер: US20190193229A1
Автор: Fritsche David L., Miller Michael R., Toberman Daniel L., Wolf Robert M.
Принадлежит: The Boeing Company

A material removal device for removing material from a substrate includes a holder extending between first and second sides and a grinding wheel supported by the holder and being operable to remove the material from the substrate. The holder has a guide frame at the first side and a support frame at the second side. The guide frame has a first bottom surface and the support frame has a second bottom surface. The first and second bottom surfaces are vertically offset from each other. The grinding wheel has an axle supported by the guide frame and the support frame. The grinding wheel has a grinding surface located below the first bottom surface and above the second bottom surface. 1. A material removal device for removing material from a substrate , the material removal device comprising:a holder extending between first and second sides, the holder having a guide frame at the first side and a support frame at the second side, the guide frame having a first bottom surface, the support frame having a second bottom surface, the first and second bottom surfaces being vertically offset from each other; anda grinding wheel supported by the holder and being operable to remove the material from the substrate, the grinding wheel having an axle bearing on and supported by the guide frame and the axle bearing on and supported by the support frame, the grinding wheel having a grinding surface, the grinding surface being located below the first bottom surface and above the second bottom surface.2. The material removal device of claim 1 , wherein the first bottom surface is configured to rest on the substrate and the second bottom surface is configured to rest on the material a distance above the substrate.3. The material removal device of claim 1 , wherein the grinding surface is parallel to the axle.4. The material removal device of claim 1 , wherein the grinding surface is angled transverse relative to the axle.5. The material removal device of claim 1 , wherein the grinding ...

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Номер записи: 90
27-06-2019 дата публикации

FLOOR GRINDING MACHINE, HANDLE FOR FLOOR GRINDING MACHINE AND METHOD OF SETTING A HANDLE FOR A FLOOR GRINDING MACHINE

Номер: US20190193230A1
Автор: ANDERSSON Fredrik, Fogelberg Andreas, Häcker David
Принадлежит:

The present disclosure provides a floor grinding machine () for grinding floor surfaces of stone or stone-like material. The machine comprises a machine frame (), a grinding head (), supported by the machine frame (), a motor (), supported by the machine frame () and operatively connected to the grinding head (), and a handle frame (), extending from the machine frame (), and pivotable relative to the machine frame (). The machine further comprises a guide member (), which is pivotable relative to the machine frame () and pivotable relative to the handle frame (), a first locking device (), for locking the guide member () relative to the handle frame (), and a second locking device (), for locking the guide member () relative to the machine frame (). The disclosure further provides a handle for a floor grinding machine as well as methods of setting a position of a handle and methods 11. A floor grinding machine () for grinding floor surfaces of stone or stone-like material , the machine comprising:{'b': '2', 'a machine frame (),'}{'b': 3', '2, 'a grinding head (), supported by the machine frame (),'}{'b': 4', '2', '3, 'a motor (), supported by the machine frame () and operatively connected to the grinding head (),'}{'b': 5', '2', '2, 'a handle frame (), extending from the machine frame (), and pivotable relative to the machine frame (),'}{'b': 12', '2', '5, 'a guide member (), which is pivotable relative to the machine frame () and pivotable relative to the handle frame (),'}{'b': 14', '12', '5, 'a first locking device (), for locking the guide member () relative to the handle frame (), and'}{'b': 13', '12', '2, 'a second locking device (), for locking the guide member () relative to the machine frame ();'}{'b': 12', '112', '2', '102', '5', '12', '112, 'wherein the guide member (, ) is pivotable relative to the machine frame (, ) about a first axis, the handle frame () is pivotable relative guide member (, ) about a second axis, and the first and second axes are ...

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Номер записи: 91
19-07-2018 дата публикации

GRINDING PAD APPARATUS

Номер: US20180200857A1
Автор: Tchakarov Tchavdar V.
Принадлежит: DIAMOND TOOL SUPPLY, INC.

A workpiece abrading pad apparatus is provided. In one aspect, a grinding pad apparatus employs a flexible pad, a flexible metallic reinforcement layer or ring, and multiple floor-grinding disks. In another aspect, a metallic reinforcement ring includes a central hole through which a fiber or foam pad is accessible. Another aspect employs a spring steel reinforcement ring to which multiple diamond-based abrasive disks or dots are attached. In yet another aspect, at least one floor-contacting disk attached to a reinforcement ring includes sintered powdered metal with diamond particles mixed therein. A further aspect employs abrasive, floor-contacting disks or dots including posts extending from backsides thereof for attachment to a reinforcing ring or layer. 1. A pad apparatus comprising:(a) a rotatable flexible pad including a top surface, a floor-facing bottom surface and a peripheral surface;(b) a reinforcement layer attached to the bottom surface of the pad, the reinforcement layer including a flexible metallic material; and(c) abrasive grinding tools attached to a floor-facing surface of the reinforcement layer.2. The apparatus of claim 1 , wherein each of the tools comprises at least one mechanical fastener projecting from a backside thereof.3. The apparatus of claim 2 , wherein the fastener includes a post claim 2 , each of the posts extending through an associated aperture in the reinforcement layer claim 2 , and a distal end of each of the posts is laterally expanded on an upper side of the reinforcement layer to mechanically attach the associated tool to the reinforcement layer.4. The apparatus of claim 1 , wherein the reinforcement layer is an annular ring having circular inner and outer edges claim 1 , and a central portion of the pad is exposed through a hole defined by the inner edge of the ring.5. The apparatus of claim 1 , wherein the flexible metallic material is spring steel.6. The apparatus of claim 1 , wherein:the pad includes fibers but is free ...

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Номер записи: 92
27-06-2019 дата публикации

Slew ring repair and damage prevention

Номер: US20190195196A1
Автор: Christopher James Winslow
Принадлежит: Wind Solutions LLC

A system for slew ring repair includes a drive mechanism and a tool coupled thereto. The tool may include a fixture structurally configured to secure the tool to a frame on a top end of a wind tower, and a rotatable shaft having a proximal end and a distal end, where the proximal end is coupled to the drive mechanism and the distal end is structurally configured to insert within a housing on the top end of the wind tower that contains a slew ring of a wind turbine disposed on the wind tower. The tool may further include a grinder disposed on the distal end of the rotatable shaft, where the grinder is structurally configured to engage the slew ring while being rotated by the drive mechanism for repair or maintenance of the slew ring.

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Номер записи: 93
19-07-2018 дата публикации

APPARATUS FOR GRINDING A CONCRETE FLOOR SURFACE

Номер: US20180202176A1
Автор: AHONEN Mika
Принадлежит:

An apparatus for grinding a concrete floor surface, in order to perform grinding with a manual, a pullable or a ride-on concrete trowel machine is provided. The apparatus comprises a concrete trowel organ to be used with the concrete trowel machine and a diamond grinding arrangement, such as one or several diamond disks or like, to be coupled in connection with the concrete trowel organ removably by means of a fastening arrangement. The fastening arrangement for coupling the diamond grinding arrangement in connection with the concrete trowel organ comprises a fastening frame, being in connection with the diamond grinding arrangement that exits on a scrubbing surface of the concrete trowel organ, and a fastening part extending from the fastening frame and, while going through the concrete trowel organ, getting supported against a back surface of the same. 1. Apparatus for grinding a concrete floor surface , in order to perform grinding with a manual , a pullable or a ride-on concrete trowel machine , wherein the apparatus comprises a concrete trowel organ to be used with the concrete trowel machine and a diamond grinding arrangement , such as one or several removable diamond disks or like , to be coupled in connection with the concrete trowel organ by means of a fastening arrangement , wherein a fastening arrangement for coupling the diamond grinding arrangement removably in connection with the concrete trowel organ comprises a fastening frame that is in connection with the diamond grinding arrangement , existing on a scrubbing surface of the concrete trowel organ , and a fastening part extending from the fastening frame and , while going through the concrete trowel organ , getting supported against a back surface of the same , characterized in that , a cross section area of a hole for the fastening part in the concrete trowel organ , such as a trowel plate or a trowel wing , is arranged essentially larger than a cross section area of the fastening part in order to ...

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Номер записи: 94
04-07-2019 дата публикации

GRINDING HEAD FOR FLOOR GRINDING MACHINE AND METHOD OF ASSEMBLING A GRINDING HEAD, SETTING A BELT TENSIONER, SERVICING, ASSEMBLING OR DISASSEMBLING A BELT PULLEY FOR A FLOOR GRINDING MACHINE

Номер: US20190202025A1
Автор: Adolfsson Samuel, Fogelberg Andreas, Gustavsson Daniel, Ottosson Linus
Принадлежит:

The present disclosure relates to a grinding head () for a floor grinding machine for grinding floor surfaces of stone or stone-like material. Such a grinding head () comprises a lower casing member (), comprising a lower support () and an upwardly extending edge portion (), and an upper casing member (), comprising an upper cover () and a downwardly extending edge portion (), wherein the upper casing member () is joinable to the lower casing member () by causing axially distal portions of the edge portions to bear on each other. 111001. A grinding head () for a floor grinding machine () for grinding floor surfaces of stone or stone-like material , the grinding head () comprising:{'b': 3', '31', '32, 'a lower casing member (), comprising a lower support () and an upwardly extending edge portion (), and'}{'b': 2', '21', '22, 'an upper casing member (), comprising an upper cover () and a downwardly extending edge portion (),'}{'b': 2', '3', '22', '32, 'wherein the upper casing member () is joinable to the lower casing member () by causing axially distal portions of the edge portions (, ) to bear on each other'}{'b': 2', '3', '25', '26, 'wherein the distal portion of the edge portion of one of the casing members (, ) comprises an axial support surface () and a radially outwardly facing radial support surface (), and'}{'b': 35', '36, 'the distal portion of the edge portion of the other casing member comprises an axial support surface () and a radially inwardly facing radial support surface (),'}{'b': 2', '3', '25', '35', '36', '26, 'such that when the casing members (, ) are in a joined state, the axial support surfaces (, ) abut each other and the inwardly facing radial support surface () is positioned radially outside the outwardly facing radial support surface ().'}212122. The grinding head () as claimed in claim 1 , wherein the upper cover () and the downwardly extending edge portion () are formed in one piece.313132. The grinding head () as claimed in claim 1 , ...

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Номер записи: 95
05-08-2021 дата публикации

PLANETARY CONCRETE GRINDER

Номер: US20210237220A1
Автор: Spears Grant
Принадлежит:

A concrete grinder has a rotating planetary gearbox with counter rotating tooling plates attached. The planetary gearbox is powered directly from a trowel gearbox output shaft, which is connected to a center bore of the planetary gearbox. As the planetary gearbox rotates, tooling shafts are forced to counter rotate because the input shaft of the planetary gearbox is connected to a fixed pulley or sprocket. The planetary gearbox is sealed to keep water, dust or slurry from entering. 1. A planetary concrete grinder comprising:a body;at least one planetary gearbox rotatably secured to the body, each planetary gearbox having a center bore configured to receive drive shaft;a bull gear rotationally fixed to the body; a shaft; and', 'a first sprocket along a length of the shaft;, 'a plurality of tooling assemblies attached to the planetary gearbox, each tooling assembly including'}a driven tooling assembly of the plurality of tooling assemblies further including a second sprocket along the length of the shaft of the driven tooling assembly;a first driver that couples rotation of the bull gear with rotation of the second sprocket of the driven tooling assembly;a second driver that engages the first sprocket of each of the tooling assemblies; andeach planetary gearbox including a stop bolt secured within the center bore and below and abutting the drive shaft sealing the planetary gearbox.2. The planetary concrete grinder of claim 1 , wherein the driven tooling assembly further comprises a bearing support configured to be secured to a lid portion of the at least one respective planetary gearbox.3. The planetary concrete grinder of claim 2 , wherein the driven tooling assembly further comprises an upper shaft end bearing secured to the bearing support claim 2 , the upper shaft end bearing being configured to receive the shaft of the driven tooling assembly and to seal the planetary gearbox.4. The planetary concrete grinder of claim 1 , wherein each tooling assembly further ...

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Номер записи: 96
28-07-2016 дата публикации

Method for producing mirror-polished wafer

Номер: US20160217998A1
Автор: Hiromasa Hashimoto, Kazuaki Aoki, Shigeru Oba, Yoshihiro Usami
Принадлежит: Shin Etsu Handotai Co Ltd

A method for producing mirror-polished wafer, the method produces a plurality of mirror-polished wafers by performing, on plurality of silicon wafers obtained by slicing a silicon ingot, slicing strain removing step of removing strain on a surface caused by slicing, etching step of removing strain caused by the slicing strain removing step, and double-side polishing step of performing mirror polishing on both surfaces of the silicon wafers subjected to etching, each step being performed by batch processing, wherein silicon wafers which are processed in double-side polishing step by batch processing are selected from silicon wafers processed in same batch in the slicing strain removing step and the number of silicon wafers to be selected is made to be equal to the number of silicon wafers processed in the slicing strain removing step or submultiple thereof. As a result, a method that can produce mirror-polished wafers having high flatness is provided.

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Номер записи: 97
04-08-2016 дата публикации

MULTI-FUNCTION SURFACE PREPARATION APPARATUS

Номер: US20160221143A1
Автор: Dickson Wayne E.
Принадлежит:

A surface preparation apparatus has a drive-on wheeled vehicle with a surface preparation tool attached thereto. The surface preparation tool can move vertically and can rotate about two separate axes relative to the wheeled vehicle. The surface preparation tool therefore can float over the contour of a floor being treated. 1. A surface preparation apparatus comprising:a motor-powered wheeled vehicle;a surface preparation tool removably connected to the motor-powered wheeled vehicle, the surface preparation tool being laterally adjustable relative to the motor-powered vehicle.2. The surface preparation apparatus of claim 1 , wherein the surface preparation tool is removably fixable at different lateral positions relative to the motor-powered vehicle.3. The surface preparation apparatus of claim 1 , further comprising a shaft connecting the surface preparation tool to the wheeled vehicle claim 1 , wherein the surface preparation tool is rotatable about the shaft.4. The surface preparation apparatus of claim 3 , wherein the surface preparation tool is pivotable about an axis that is perpendicular to a longitudinal central axis of the shaft.5. The surface preparation apparatus of claim 1 , further comprising a connecting frame claim 1 , wherein the surface preparation tool is pivotally connected to the connecting frame.6. The surface apparatus of claim 5 , further comprising a pair of ball joints connecting the connecting frame to the surface preparation tool.7. The surface preparation apparatus of claim 5 , further comprising a pair of hydraulic cylinders connected to the wheeled vehicle claim 5 , the hydraulic cylinders having a float position which allows the surface preparation tool to follow the contour of the floor being treated.8. A surface preparation comprising:a motor-powered wheeled vehicle;a connecting frame pivotably connected to the wheeled vehicle;a surface preparation tool connected to the connecting frame to rotate about an axis perpendicular to a ...

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Номер записи: 98
16-10-2014 дата публикации

METHOD FOR POLISHING SEMICONDUCTOR WAFERS BY MEANS OF SIMULTANEOUS DOUBLE-SIDE POLISHING

Номер: US20140308878A1
Автор: Baumann Rainer, Heilmaier Alexander, Mistur Leszek, Roettger Klaus, Staudhammer Johannes
Принадлежит: SILTRONIC AG

A method of polishing a semiconductor wafer includes simultaneous double-side polishing the wafer in a gap of a polishing device between a lower polishing plate covered with a lower polishing pad and upper polishing plate covered with an upper polishing pad while supplying a polishing agent. A first of the upper and lower polishing pads is dressed using a dressing tool. The dressing tool is mounted in the gap so that it extends from the inner edge to the outer edge of the first polishing pad. The distance between the dressing tool and a second of the upper and lower polishing pads at the inner edge of the second polishing pad differs from a corresponding distance at the outer edge of the second polishing pad. After the dressing, the at least one semiconductor wafer in the gap is polished. 1. A method of polishing at least one semiconductor wafer , the method comprising:simultaneous double-side polishing the at least one wafer in a gap of a polishing device between a lower polishing plate covered with a lower polishing pad and an upper polishing plated covered with an upper polishing pad while supplying a polishing agent, the polishing plates and the polishing pads having an inner edge and an outer edge;dressing a first of the upper and lower polishing pads using a dressing tool, the dressing including rotating the respective polishing plate covered with the first polishing pad and the dressing tool being mounted in the gap in such a way that it extends from the inner edge to the outer edge of the first polishing pad, where a distance between the dressing tool and a second of the upper and lower polishing pads at the inner edge of the second polishing pad differs from a corresponding distance at the outer edge of the second polishing pad; andpolishing the at least one semiconductor wafer in the gap after the dressing.2. The method as recited in further comprising dressing the second polishing pad subsequent to the dressing of the first polishing pad.3. The method as ...

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Номер записи: 99
02-08-2018 дата публикации

Method and apparatus for cutting Non-Linear Trenches in Concrete

Номер: US20180216301A1
Автор: Lorenz Alexander
Принадлежит:

A walk-behind apparatus and method for cutting non-linear trenches in concrete includes a frame supported by fixed direction wheels at a front end on a fixed axis of rotation, and multi-directional wheels at a rear end to rotate on movable axes of rotation, to permit the frame to rotate about a vertical axis passing through the frame. A handle is engageable by a user walking behind the frame for pushing the apparatus forward and/or for steering. A cutting wheel has a diameter of 5-20 inches and a cutting portion having a width of 0.5-1.5 inches. The cutting rotates on an axis parallel to the fixed axis and which extends notionally through the fixed direction wheels. The cutting wheel is disposed within a protective shroud viewable by the user to permit the user to visually align and guide the cutting wheel along a non-linear path on the ground while steering. 1. A walk-behind apparatus for cutting non-linear trenches in concrete , the apparatus comprising: one or more fixed direction wheels at a front end portion of the frame disposed to rotate on a fixed axis of rotation; and', 'one or more multi-directional wheels at a rear end portion of the frame disposed to rotate on one or more movable axes of rotation;', 'wherein the at least three ground engaging wheels define an x-y plane and permit the frame to rotate about a z-axis passing through the frame normal to the x-y plane;, 'a frame supported by at least three ground engaging wheels, the frame includinga user-engageable handle disposed at the rear end portion of the frame, the handle being engageable by a user walking behind the frame for pushing the apparatus forward and/or for steering the apparatus by pushing the handle left or right;a motor-driven ground-engaging cutting wheel having a cutting wheel axis of rotation, a diameter D in a range of from about 5 inches to about 20 inches, with a cutting portion having a width w in a direction parallel to said cutting wheel axis of rotation within a range of from ...

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Номер записи: 100