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| Number | Title | Issue Date |
| 5632150 | Carbon dioxide pellet blast and carrier gas system An improved blast cleaning system and an improved method of blast cleaning using solid carbon dioxide pellets is provided. A compressed air source--preferably an air compressor--is used to produce a compressed air or carrier gas stream which is cooled to ... | 05/27/1997 |
| 5593343 | Apparatus for reconditioning digital recording discs An apparatus for reconditioning the protective coating of a digital recording disc is provided. The apparatus includes a turntable configured to receive a digital disc, a first motor for rotating the turntable, a turntable support for attaching the turnta... | 01/14/1997 |
| 5591064 | Blasting apparatus and method for blast cleaning a solid surface Blast cleaning with at least two types of abrasives employing a blasting apparatus having at least a first and a second closed blasting pot connected to a conveying line and the conveying line and each blasting pot are connected to a source of compressed ... | 01/07/1997 |
| 5584750 | Polishing machine with detachable surface plate The present invention uses a surface plate 8 made of carbon fiber reinforced plastics which is installed on a turntable 4, and an emery cloth 6 is adhered on the surface of the surface plate 8. This surface plate 8 is detachably installed on the turntable... | 12/17/1996 |
| 5582540 | Hydrostatic and hydrodynamic polishing tool A polishing tool includes a tool body and a polishing member which is mounted rotatably on the tool body and which has a central hole unit formed through the polishing member. The working surface of the polishing member has a plurality radially extending ... | 12/10/1996 |
| 5575705 | Slurry blasting process An improved slurry blasting process is disclosed wherein a liquid carrier medium such as water contains a dispersed water-soluble particulate abrasive to enhance blast cleaning efficiency and wherein the liquid carrier comprises a saturated solution such ... | 11/19/1996 |
| 5554064 | Orbital motion chemical-mechanical polishing apparatus and method of fabrication A method and apparatus for polishing a thin film formed on a semiconductor substrate. A table covered with a polishing pad is orbited about an axis. Slurry is fed through a plurality of spaced-apart holes formed through the polishing pad to uniformly dist... | 09/10/1996 |
| 5490809 | System and method for texturing magnetic data storage disks In the texturing unit of this invention a data storage disk is gripped between a pair of opposed, counter-rotating cylindrical abrasive mandrels, which are covered with soft, porous pads. The frictional force between the disk and the pads raises the edge ... | 02/13/1996 |
| 5305554 | Moisture control in vibratory mass finishing systems A "closed-loop" moisture control system for use in vibratory mass finishing systems. A substantially constant amount of a grinding and/or polishing slurry is maintained in a finishing reservoir of the vibratory mass finishing system by controlling the amo... | 04/26/1994 |
| 5299391 | Flapper wheel adapter An easy-to-use adapter assembly that will permit sanding flapper wheels of various sizes to be conveniently used in the field with portable hand held electric grinders of conventioonal design. The assembly is preferably sold as a set that includes connect... | 04/05/1994 |
| 5216843 | Polishing pad conditioning apparatus for wafer planarization process An improved apparatus for polishing a thin film formed on a semiconductor substrate includes a rotatable table covered with a polishing pad. The table and the pad are then rotated relative to the substrate which is pressed down against the pad surface dur... | 06/08/1993 |
| 5197230 | Finish-machining machine This invention relates to a finish-machining machine for lapping, finish-grinding or polishing. The machine comprises upper and lower annular finishing disks, which are rotatable about a vertical axis and adapted to be separately driven, an inner annular ... | 03/30/1993 |
| 5109631 | Finish-machining machine comprising means for feeding an abrasive slurry at a controlled rate This invention relates to a finish-machining machine comprising two finishing disks, which are centered on a vertical axis, and means for feeding an abrasive slurry at a controlled rate to the working gap between said disks. The invention is particularly ... | 05/05/1992 |
| 5009037 | Apparatus for descaling the surface of a strip The proposed apparatus comprises a chamber containing an abrasive powder, two pairs of powder compacting mechanisms arranged one above the other, means for charging the abrasive powder to the chamber, and gates for discharging the used powder. In addition... | 04/23/1991 |
| 4959931 | Method and apparatus for preventing binding and overloading of media feed screw conveyor A method and apparatus for preventing binding and overloading of feed augers or screws used to convey blast media (e.g. shot, pellets or irregular shaped particles) from a media storage hopper to a media blasting device. The invention includes a damper to... | 10/02/1990 |
| 4850157 | Apparatus for guiding the flow of abrasive slurry over a lapping surface A wiper guide assembly, mounted at the free end of a workpiece carrying arm, can be selectively released to position a neoprene wiper blade against a lapping surface, and retracted whereby the blade is lifted away from the lapping surface. The wiper blade... | 07/25/1989 |
| 4784295 | Slurry dispensing system having self-purging capabilities An enclosed slurry dispensing system employs a sealed pressurized reservoir for supplying slurry through a bypass chamber to a dispensing nozzle. Excess slurry is bypassed through the bypass chamber to an intermediate chamber. Slurry is allowed to return ... | 11/15/1988 |
| 4730417 | Finishing method and apparatus A finishing method and apparatus wherein a tub containing loose abrasive material is rotated at high speeds about a vertical axis to cause finishing media to form a layer of media along the side wall of the tube. One or more workpieces to be finished are ... | 03/15/1988 |
| 4513894 | Abrasive slurry supply system for use in metallographic sample preparation An alumina slurry supply system for use in conjunction with a polisher or grinder apparatus or the like for preparing the surfaces of metallurgical specimens, the system comprising an alumina slurry reservoir, a recirculation pump disposed in the reservoi... | 04/30/1985 |
| 4490948 | Polishing plate and method for polishing surfaces A polishing plate for polishing the surface of synthetic resins has a rigid disk and a compressible cover abutting a lower surface of the rigid disk. The rigid disk has an inlet opening formed centrally therein and a plurality of channels formed in the lo... | 01/01/1985 |
| 4459781 | Grinding and polishing apparatus An apparatus for grinding/polishing the surface of material samples comprises a horizontal circular wheel which has an upper surface and rotates about its central vertical axis of rotation. On the upper surface is provided mixed abrasive particles centrif... | 07/17/1984 |
| 4452223 | Cylindrical grinding machine truing and dressing device A cylindrical grinding machine truing and dressing device for refinishing the surface of a peripheral grinding wheel of a cylindrical grinder comprising support base attached to the work bed of a cylindrical grinding machine, housing means mounted to the ... | 06/05/1984 |
| 4392334 | Fluid dispersing apparatus for use in producing ophthalmic lenses A method and apparatus for handling and dispersing a coolant and/or working fluid in ophthalmic lens processing equipment and the like. The apparatus includes a dispersing member (50) including a landing surface (52). An extension strip (62) projects away... | 07/12/1983 |
| 4287869 | Charging system for cutting blade A cutting process in which a blade under tension is moved relative to a workpiece. The blade has a longitudinally-extending abrasive-holding portion defined by blade material that is softer than the workpiece to be cut and overlies a high tensile strength... | 09/08/1981 |
| 4242841 | Apparatus for preparing and feeding an abrasive-containing suspension into the zone of action of work tools of polishing and finishing lathes An apparatus for preparing and feeding an abrasive-containing suspension into the zone of action of work tools of polishing and finishing lathes consisting of units series-connected by pipes and forming a closed circuit, comprising a unit for preparing a ... | 01/06/1981 |
| 4185609 | Band type lapidary saw A band type stone saw comprising a toothless blade having its cutting reach inclined and ascending toward the workpiece and wetted with continuously agitated liquid and abrasive slurry so that the slurry advances to the cutting edge of the blade and the b... | 01/29/1980 |
| 4178670 | Process of forming a wire pack Making a wire pack in which a plurality of wires of predetermined length extend between a pair of spaced supports by wrapping turns of wire in a helix around a cylindrical roll while maintaining a constant tension on the wire, placing the supports in posi... | 12/18/1979 |
| 4092972 | Process of cutting wafers In a cutting process in which a blade under tension is moved relative to a workpiece, that improvement wherein the blade has a longitudinally-extending abrasive-holding portion defined by blade material that is softer than the workpiece to be cut and over... | 06/06/1978 |
| 4073281 | Truing and dressing apparatus for grinding wheels An apparatus for successively truing and dressing a grinding wheel made of cubic boron nitride (CBN) with a diamond-impregnated truing roll and a metal dressing roll. The truing and dressing rolls are rotatably mounted on a roll carriage which is slidably... | 02/14/1978 |
| 4068416 | Grinding wheel dressing method A cubic boron nitride, diamond or similar grinding wheel is dressed by applying a dresser comprising a multiplicity of abrasive particles dispersed in a normally rigid but friction-meltable organic polymeric matrix against the rotating wheel and causing t... | 01/17/1978 |
| 4059929 | Precision metering system for the delivery of abrasive lapping and polishing slurries A system for supplying an abrasive-containing liquid to a lapping or polishing machine includes a supply of abrasive slurry concentrate containing abrasive grain which is suspended in a liquid, a supply of diluent liquid which is essentially free from sol... | 11/29/1977 |
| 4031671 | Apparatus for delivering fluid grinding material An apparatus for delivering a fluid grinding material to a grinding area in a grinding or polishing apparatus comprises a vessel in which a fluid grinding material is mixed and removed therefrom by conveyor means which drop it continuously in the grinding... | 06/28/1977 |
| 4027648 | Grinding wheel dressing method A cubic boron nitride, diamond or similar grinding wheel is dressed by applying a dressing slurry comprising a multiplicity of inorganic crystals dispersed in a normally fluid carrier medium against the rotating wheel to form a layer of dressing slurry on... | 06/07/1977 |
| 3965619 | Quick change feed mechanism and abrasive replacement An apparatus for quickly changing the abrasive in the tool holder of a grinding, honing or abrasive finishing machine. After the abrasive in a finishing machine is worn out, this device allows the tool holder to be easily and quickly removed and the abras... | 06/29/1976 |
| 3964211 | Stone wear indication on a honing machine An apparatus for indicating replacement of an abrasive stick or stone in a honing machine by utilizing an air pressure sensor in conjunction with the feed cylinder for the abrasive stick.... | 06/22/1976 |
