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WO/1997/011484A1 |
A method of modifying an exposed surface of a semiconductor wafer that includes the steps of: (a) contacting the surface with a fixed abrasive article having a three-dimensional textured abrasive surface that includes a plurality of abra...
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WO/1997/010613A1 |
A grinding method which uses grindstone comprising abrasive grains and a binding resin for binding the abrasive grains, and a grinding device for use in the same. Grindstone having a desired elastic modulus can be manufactured by means o...
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WO/1996/037340A1 |
A system for lapping transducers (28) has an abrasive surface (22) that communicates with the transducers to provide information for controlling the lapping of the transducer. The lapping body (20) communicates with a transducer (28) wit...
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WO/1996/036459A1 |
A method and apparatus is disclosed for polishing the face of a semiconductor wafer. The wafer is held in position by a tooling head and is contacted by an abrasive pad. A table is provided on to which the abrasive pad is fixedly attache...
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WO/1996/031316A1 |
An apparatus (28) for reconditioning the protective coating (14) of a digital recording disc (10) includes a turntable (30) configured to receive the digital disc (10), a first motor (42) for rotating the turntable (30), a turntable supp...
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WO/1996/022173A1 |
The invention relates to a method for grinding of preferably billets, blooms and slabs which are moved in a certain direction on a support. The method means that the grinding is performed in a track which is perpendicular to the travel d...
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WO/1996/011771A1 |
The roller and belt assembly (10) for mounting on a spindle or drive shaft (20) comprises a closed loop belt (42) having an inner surface (50) and an outer surface (40), the inner surface (50) having an engaging material (52) thereon, an...
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WO/1996/011084A1 |
A machine is disclosed for trimming the sides of building blocks or the like, in particular dried green bricks (Z) or baked bricks (Z) that are centred, vertically clamped and thus conveyed through at least one trimming station with late...
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WO/1996/011083A1 |
A process and device are disclosed for evening one or two sides of dried green and/or baked bricks centred and conveyed through a processing machine provided with revolving evening tools (such as grinding wheels or cutters) with working ...
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WO/1995/034802A1 |
Equipment for the grinding of material samples, for instance the grinding of a rock sample assembled on a microscope slide includes a console and a frame structure (1) with a turntable (3) which is arranged to hold a number of material s...
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WO/1995/030515A1 |
For each grinding wheel (10) there is provided a bush (21) which supports an individual grinding wheel (10) and is rotatably coupled to a longitudinal member (41) about a fixed axis of rotation (S) perpendicular to the support surface (P...
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WO/1995/028255A1 |
A method of rejuvenating marked or scuffed glass, particularly bottles (5), by abrading the scuffed areas (7) with an abrasive grit of between P200 and P600 roughness and subsequently polishing the abraded surface with a grit having a ro...
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WO/1995/027589A1 |
The present invention is embodied in a method and apparatus (10) for conditioning a braking surface (34) of a brake assembly (30). The method involves creating at least one groove in brake surface (34), wherein the groove is concentric t...
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WO/1995/017612A1 |
A disc brake assembly includes a disc (50) having an axis of rotation (51), a radial inner portion (54) and a radial outer portion (55) separated by a continuous circumferential gap (56). Brake pad assemblies (11, 12) are located on resp...
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WO/1995/014140A1 |
The invention concerns a device to drive and control a working vehicle arranged for treatment of a surface (15) thereof. The vehicle comprises for this purpose a driving wheel assembly (1) and two tools (14, 23) arranged, by their rotary...
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WO/1994/027781A1 |
The product concerns a run-through sander to wood- and lacquer-intermediary sanding of plane workpieces (E), the surface of the workpiece not necessarily plane (meaning smooth). The process requires abrasives of the laminated type with a...
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WO/1994/020264A1 |
Previously known articles for polishing stone are not durable. In accordance with the present invention, a method of polishing stone and durable article for use in the method are presented in which the stone has at least one exposed surf...
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WO/1994/017956A1 |
The process involves optimizing the load conditions for the machined surfaces of the components, selecting and applying the optimum permissible specific force applied to the tool in the light of the relative thickness of the machined com...
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WO/1994/013435A1 |
An applicator pad (20) for use with a polishing composition for removing scratches or other imperfections from plastic surfaces is disclosed which is generally tubular in shape, and has a bore (22) therethrough to receive the finger of a...
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WO/1994/013432A1 |
A portable grinding machine for grinding a surface surrounding a circular aperture, the machine consisting in a body (13) having adjustable legs (11) to locate and fix the body in the circular aperture by contact with an internal surface...
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WO/1994/008752A1 |
The invention relates to an arrangement for a mobile surfacing machine, preferably for the surfacing of stone floors. A frame (1) supports a drive motor (2) with a motor shaft (2a). A planet disc (3) is rotatably mounted in the frame (1)...
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WO/1994/008503A1 |
A polishing machine is intended to carry out the polishing of marginal areas of a floor, close to the walls, where conventional machines have difficulty to reach those areas, as well as the plinth, which cannot be reached by conventional...
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WO/1994/007653A1 |
A resurfacing method and apparatus for brake disks or rotors and for flywheels utilizes "dead centers" (34, 36) to support the rotor, flywheel or the like, avoiding disk thickness variations which would result from support of the disk or...
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WO/1994/007657A1 |
The present invention is applicable to grinding apparatus for removing irregularities from and for levelling the working surface of thick, large width rubber belts (11) used to compact paper or (in the case of fabric, preshrink) fibrous ...
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WO/1994/004066A1 |
The proposal is for a mobile machine for cleaning the surfaces of floors, roofs, walls or other large-area items which contain health-threatening materials. The machine (1) has means (3, 7) by which it can be moved in a working direction...
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WO/1994/000260A1 |
Described is a double-turret tool holder for a lathe, the tool holder having two turret discs (16, 18) mounted coaxially to each other and connected so that they rotate in unison. The two discs can be continuously displaced relative to e...
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WO/1993/023203A1 |
A device forms a closed unit and has a measurement member (11), a support table with a conveyor band (13) and a carriage (14) mobile in the direction of the longitudinal axis with a tool which works transversely to the direction of passa...
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WO/1993/017829A2 |
In the texturing unit (10) of this invention a data storage disk (11) is gripped between a pair of opposed, counter-rotating cylindrical abrasive mandrels (12), which are covered with soft, porous pads (21). The frictional force between ...
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WO/1993/011901A1 |
Disclosed herein is a rotary cutter for cutting gears and the like. The rotary cutter has an axis of rotation (20) and comprises a disc-shaped cutter head (10) having a circumferential edge surface (12). The cutter head (10) further incl...
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WO/1992/019420A1 |
A grinding machine for machining workpieces made of wood and ligneous materials has a work table (14) slidingly mounted in a horizontal table guide (12) of a machine frame (10), a grinding aggregate (18) slidingly mounted in a horizontal...
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WO/1992/012822A1 |
An apparatus for applying a finish to a linear workpiece such as a piece of picture frame molding (36) includes a number of rotary abrasive devices (22, 24, 26, 28, 30, 32) arranged in a line along which the workpiece (36) travels on rol...
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WO/1992/010332A1 |
A grinding apparatus comprises an article holder (10), a grinding device (12), and means to transfer an article (14) from the holder (10), clamp same in a determined fashion and present an end of the article (14) to the grinding device (...
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WO/1992/003257A1 |
The invented sander with orbiting platen and abrasive (10) includes a platen (100), an abrasive (152) secured to the platen (100), and a motor (116) connected to the platen (100) to move the platen (100) and abrasive (152) in an orbit or...
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WO/1992/002334A1 |
A mobile floor grinding vehicle for grinding a floor to a predetermined level and provided with one or more grinding heads which can be continuously adjusted as the vehicle is moved over a floor to maintain the grinding surface of the he...
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WO/1992/000833A1 |
A ski grinding device and method comprising a holder having an adjustably sizable frame and a plurality of biasing legs disposed to engage the ski and maintain it in a flattened position. By holding the ski flat, the running surface can ...
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WO/1991/019593A1 |
A surface grinder (80) provided with: a grinding belt (1) having a grinding layer on the outer surface thereof; a driving unit (2) for the grinding belt (1); a flat surface supporting unit (21) for supporting the grinding belt flat in a ...
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WO/1991/017864A1 |
On woodworking machines of the traversing type, for example those used for sanding operations, the items (23) are secured on a vacuum conveyor (3). When the items are not perfectly plane, or when the contact surface against the conveyor ...
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WO/1991/017863A1 |
In order to be able to sand the surface of an item (3) uniformly smooth, a sanding machine is used with sanding tools in the form of sanding rollers (29) which are rotated as well as turned in the same plane, and which at the same time h...
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WO/1991/012112A1 |
A production line, continuous feed, high volume output apparatus (10) for cutting, grinding, and/or polishing concrete or fired masonry units (12) into finished masonry building materials. A conveyor belt (34) moves the masonry units (12...
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WO/1991/004133A1 |
An apparatus for texturing the front and back surfaces of a rigid-disk substrate (30) used in magnetic recording systems is disclosed. The apparatus comprises first and second mechanical assemblies; each of the assemblies including an ab...
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WO/1991/004134A1 |
The present invention provides an automated rigid-disk finishing system with ''fly-by-wire'' control of each of the relevant parameters involved in the texturing process. The system includes an abrasive tape (16), a means (20) for forcib...
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WO/1991/001851A1 |
The construction of the floor polishing machine is based on the motor section of the corner polishing machine (9), to which working handles (6) and a cooling air pipe (2) are connected. The apparatus has adjustable support wheels (1) whi...
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WO/1990/006834A1 |
A machine for sanding flat surfaces on workpieces is disclosed. The workpiece (66) to be sanded is attached to a platen (56) on the frame (12) so that the workpiece surface to be sanded faces upwardly. A motor (16) rotatably drives an ab...
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WO/1990/002023A1 |
A method and apparatus for surfacing the face of a clutch flywheel or other friction disk (12) achieves a surface pattern (31, 31a) which promotes proper wearing-in of the flywheel or disk (12) and of a friction disk or pad which engages...
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WO/1989/009113A1 |
This invention relates to a numerically controlled chamfering apparatus used to chamfer and grind the peripheral portions of a glass plate, such as a window glass for an automobile. An object of this invention is to chamfer a glass plate...
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WO/1989/007508A1 |
Method of abrasive machining of the surface of parts (10) placed in the casing (4) involving creation of a pressure of the abrasive instrument (15) against the parts (10) being machined and bringing about their mutual movements while add...
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WO/1989/006589A1 |
A surface levelling device for levelling surfaces such as a wooden floor, the device including a rotatable cutting head (130) which is mounted in a movable framework (4) by means of independently controlled screw devices (84, 86). The sc...
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WO/1988/010174A1 |
A work table used for effecting machining using a rotary abrasive tool. The work table comprises a table (3) for mounting a work (W) and a based (1) mounted on a table (2) of the machine. The table (3) is supported on the base (1) via a ...
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WO/1988/006949A1 |
A machine tool for abrasive machining comprises an abrasive instrument (1) and a device for creating the pressing force in the cutting zone provided with a casing (3) with guides in which are mounted , with the possibility of reciprocati...
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WO/1988/006951A1 |
In a machine tool for abrasive machining of flat surfaces comprising a work-piece stock (28) mounted on a frame (1), a chuck (9) which carries the abrasive instrument (11), is rotatably mounted by means of a thrust bearing (13) on an ann...
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