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| Number | Title | Issue Date |
| 6200206 | Surface preparation device A production type surface finishing apparatus for finishing the surfaces of work-pieces such as cabinet doors and the like which include a plurality of relatively large, very lightweight finishing platens that are simultaneously movable in both a reciproc... | 03/13/2001 |
| 6123608 | Crown forming apparatus for forming crown floating type magnetic head Employed is a crown forming method of forming a crown on a floating type magnetic head which includes the steps of placing an approximately rectangular-prism-shaped bar, which has magnetic head elements of not less than 1 formed on a side wall thereof in ... | 09/26/2000 |
| 6106368 | Polishing method for preferentially etching a ferrule and ferrule assembly The face of a ferrule and ferrule assembly is polished in the present invention so a portion of optical fibers extending therethrough protrude beyond the front face of the ferrules. The ferrules are secured in a polisher and polished with a fibrous materi... | 08/22/2000 |
| 6074275 | Polishing system and method of control of same A polishing system and a method of control of the same enabling reliable transfer of the workpieces into and out of the system while maintaining the precision of polishing of the workpieces. Provision is made of a polishing apparatus 1, a first transfer a... | 06/13/2000 |
| 6074277 | Polishing apparatus A polishing apparatus prevents uneven wear of the platen and improves the operating rate of the apparatus. The polishing apparatus provided with a platen 1 divided into an inner peripheral platen portion 11 and an outer peripheral platen portion 13 and wi... | 06/13/2000 |
| 6030278 | Surface machining method and apparatus A wafer is rotated on its axis, which is biased with regard to an axis of a grinding wheel, and revolves around an axis which is biased with regard to the axis of the wafer and the axis of the grinding wheel. In this state, the grinding wheel is abutted a... | 02/29/2000 |
| 5964649 | Grinding cup and wear part therefor A grinding cup includes a wear part having a cavity at its front end, the cavity configured for grinding a button of a rock drill bit. A flush channel extends forwardly through the wear part and terminates at the cavity for conducting a flushing medium th... | 10/12/1999 |
| 5954569 | Security device for removing the information bearing layer and data of a compact disc A device is disclosed for removing the information bearing surface and the data carried thereby from the substrate layer of a compact disc. The device includes a housing having an upper portion defining a top surface and a central cavity and a lower porti... | 09/21/1999 |
| 5899800 | Chemical mechanical polishing apparatus with orbital polishing A chemical mechanical polishing apparatus polishes the surface of a substrate to remove material therefrom, The apparatus includes a carrier, which positions the substrate against the rotating polishing pad. The carrier includes an integral loading member... | 05/04/1999 |
| 5743785 | Polishing method and apparatus for preferentially etching a ferrule assembly and ferrule assembly produced thereby The method and associated apparatus of the present invention polishes the front face of a ferrule with first and second slurries such that an end portion of each optical fiber which extends through and is held by the ferrule protrudes beyond the preferent... | 04/28/1998 |
| 5733175 | Polishing a workpiece using equal velocity at all points overlapping a polisher A polishing machine for polishing a single side (e.g. a circuit side) of a workpiece (e.g. a semiconductor wafer) includes two platens. A first platen can be a workpiece-holding platen having slots or other structure for holding wafers or other workpieces... | 03/31/1998 |
| 5643067 | Dressing apparatus and method A dressing apparatus is used to resurface a polishing surface of a polish cloth used to polish semiconductor wafers. A dressing brush which spins on its own axis is also coupled to a drive shaft of a main drive of the dressing apparatus through a planetar... | 07/01/1997 |
| 5639273 | Grinding cup and holder device The present invention relates to improvements in devices for use as grinding cups for grinding the hard metal pins or working tips of drill bits and more specifically, but not exclusively, for grinding the tungsten carbide cutting teeth or buttons of a dr... | 06/17/1997 |
| 5582534 | Orbital chemical mechanical polishing apparatus and method A process for polishing substrates includes a carrier which receives a substrate and positions it against a slowly rotating polishing pad. The carrier orbits the pad on the rotating pad, at a speed significantly greater than the rotational speed of the po... | 12/10/1996 |
| 5577950 | Conformal tool operating apparatus and process for an ophthalmic lens finer/polisher A tool for fining/polishing an opthalmic lens has a spindle and a pliant casing containing a conformable filler connected to the spindle for rotation therewith. A pliant pad adhered to the casing has a plurality of slots extending from its perimeter towar... | 11/26/1996 |
| 5458531 | Polisher An optical connector tip polisher which comprises a stationary block for supporting a wheel spindle stock, a manual slider for supporting an optical connector and a cam mechanism. The stationary block has a base for mounting the wheel spindle. The base ha... | 10/17/1995 |
| 5297361 | Polishing machine with an improved sample holding table Polishing machine with an improved sample holding table in which the table has a cardan system with two first shafts having a first common longitudinal axis and two second shafts having a second common longitudinal axis. The shaft axes being in a polishin... | 03/29/1994 |
| 5232875 | Method and apparatus for improving planarity of chemical-mechanical planarization operations A method and apparatus for improving planarity of chemical mechanical planarization of semiconductor wafers. The wafer is affixed to the planar surface of a wafer carrier. A planar platen, on which is mounted a polishing pad, is moved about in a plane par... | 08/03/1993 |
| 5184433 | Fiber optic polisher A method and apparatus of polishing the end of an optical fiber that produces relative lateral movement between the end of the fiber and an abrasive surface while changing the angle of attack of the relative movement at a rate greater than about 10,000 ar... | 02/09/1993 |
| 5167095 | Eccentric grinding machine In an eccentric grinding machine with eccentric gearing in which a more or less coarse grinding can be produced by means of a switchable rolling gearing, the selected type of grinding is externally visible also when the machine is running. The optical dis... | 12/01/1992 |
| 5157871 | Spindle assembly for use in a lens polisher A lens polisher intended to polish a glass lens is provided with a spindle assembly having a spindle body, a housing secured to the spindle body, a load cell for monitoring the pressure applied to the lens, and a rotary head rotatably mounted on the housi... | 10/27/1992 |
| 5140782 | Tool and method for forming a lens Lens for eye glasses are formed by a method in which a lens is selected having a finished front face and a rear face to be finished to provide a required curvature. The rear face is firstly cut on a Generator machine and is then polished on a cylinder mac... | 08/25/1992 |
| 5070654 | Self-centering arrangement for grinding the hardmetal pins of drill bits An arrangement for grinding the hardmetal pins of drill bits, e.g. the tungsten carbide buttons (31) of button bits (1), comprises means (parallel arms pairs 9 and 10) for adjusting the position of a grinding pin (15) in relation to the drill bit (1) and ... | 12/10/1991 |
| 5065550 | Lapping of involute spiral scroll element The scroll elements of a scroll-type compressor are treated employing a lapping tool to achieve increased flatness of the base surface and increased smoothness of the side walls of the involute wrap. This reduces flank leakage, tip leakage, and thrust fri... | 11/19/1991 |
| 5027560 | Machine for finishing the surface of a lens A machine for finishing the surface of a lens including a lap holder moved orbitally in a first plane, a lens arm support having a lens holder, the lens arm support being oscillated in a second plane perpendicular to the first plane, the lens arm holder b... | 07/02/1991 |
| 5016399 | Planetary lap A lapping machine for abrading the surfaces of at least one workpiece employing a pair of lap plates in axial alignment with each other and having a carrier mounted therebetween for mounting workpieces therein wherein one of the lap plates is controllable... | 05/21/1991 |
| 5005319 | Knife sharpener A knife sharpener includes a sharpening member having a flat outer face with abrasive particles mounted thereon. The sharpening member is orbitally driven to impart an orbital motion to each of the particles of no greater than 3/8 inch effective diameter ... | 04/09/1991 |
| 4965965 | Grinding head for surfacing and polishing stone, marbles and other hard materials Grinding head for surfacing and polishing stone, marbles and other hard materials including a rotating housing supporting a number of oscillating grinding blocks which during rotation of said housing are pressed against the surface to be treated during si... | 10/30/1990 |
| 4831784 | Polishing apparatus for end faces of optical fibers An apparatus for polishing end faces of optical fibers so that they are each given a convex spherical surface. The optical fibers are mounted on a jig so that their end faces are pressed against a polishing film attached to a rotary disk. The polishing fi... | 05/23/1989 |
| 4807399 | Method and apparatus for sharpening a knife A knife sharpener is provided with a pre-sharpening section and with two honing sections. The pre-sharpening section includes a pair of spring biased back to back rotary disks. The honing sections include orbitally driven sharpening members.... | 02/28/1989 |
| 4627195 | Computer controller optical surfacing (CCOS) lap pressure control system A rotary lapping system and process is disclosed for producing a controlled pressure gradient, including positive and negative lift, when lapping a workpiece coated with an abrasive slurry liquid with a plurality of grinding pads mounted beneath a rotatin... | 12/09/1986 |
| 4612733 | Very high speed lap with positive lift effect A rotary lapping system for grinding a workpiece in an abrasive slurry liquid and producing a positive lift in the abrasive slurry liquid is disclosed. The positive lift is the result of the particular mounting of the grinding pads which causes the leadin... | 09/23/1986 |
| 4607458 | Very high speed lap with negative lift effect A rotary lapping system which contains a construction and mounting of grinding pads called tesserae which act to produce a negative lift or suction through hydrodynamic action with an abrasive slurry liquid is disclosed. The rotary lapping system uses a p... | 08/26/1986 |
| 4375738 | Method for grinding glass plate and the like by numerical control and grinding machine therefor A grinding machine having a table provided with a plurality of fixing stands in tandem for fixing glass plates and a head stand carrying working heads equipped with working wheels rotatably in the same number as the fixing stands comprises means for causi... | 03/08/1983 |
| 4287687 | Variable work holding device for grinding gemstones This invention is that of a variable work holding device to be used for the grinding of various gemstones and industrial diamonds. The design and structure of the device provides that the device may be set up to operate in five different modes and provide... | 09/08/1981 |
| 4228617 | Method for grinding glass plates and the like through numerical control and beveling machine therefor A beveling machine having a table provided with a plurality of fixing stands in tandem for fixing glass plates and a head stand carrying working heads equipped with working wheels rotatably in the same number as the fixing stands comprises means for causi... | 10/21/1980 |
| 4128968 | Optical surface polisher An apparatus for precisely polishing an optical surface is described. The apparatus includes polishing pads which are small in size in comparison with the surface being polished. The pads are maintained in contact with and moved across the surface being p... | 12/12/1978 |
| 4085549 | Lens polishing machine A high speed lens grinding and polishing machine comprising a lap tool holder and a gimbal mounted polishing element disposed at its lower extreme in a spherical bearing permitting a lens blank holder to follow the contour of the lens during the polishing... | 04/25/1978 |
| 3978622 | Lapping and polishing apparatus Apparatus for abrading workpieces, particularly semiconductor wafers, characterized in that the workpiece is disposed on an abrading material in a lapping and polishing tray carried on a generally horizontal support plate. The plate is caused to oscillate... | 09/07/1976 |
