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| Number | Title | Issue Date |
| 4962616 | Method and device for controlling the operation of honing machines Method for controlling the operation of two-wheel housing machines, the machining wheels of which are pressed towards each other and onto the workpieces by means of a loading device at a predetermined variable loading pressure, wherein during operation th... | 10/16/1990 |
| 4854199 | Portable brake disc resurfacing tool An improved portable brake disc resurfacing tool of the type which is mountable on an automobile wheel hub assembly for resurfacing brake discs without removing the disc from the automobile wheel assembly includes a generally rectangular framework having ... | 08/08/1989 |
| 4825596 | Flywheel resurfacing method and apparatus A method and apparatus for surfacing the face of a clutch flywheel or other friction disk achieves a surface pattern which promotes proper wearing-in of the flywheel or disk and of a friction disk or pad which engages the disk. The abrasive surface of a r... | 05/02/1989 |
| 4766702 | Disk brake grinder A method and apparatus for surfacing the opposed faces of brake disks achieves a surface pattern which promotes proper wearing-in of the disk and brake shoes or pads. The abrasive surface of a rotating abrading wheel applied to a brake disk rotating in th... | 08/30/1988 |
| 4750296 | Grinding tool A grinding tool is provided that is especially designed for the accurate and efficient grinding of overhead camshaft motor valve clearance discs. The tool hereof includes a tool outer casing adapted for retainment in the clamping fixture of a grinding mac... | 06/14/1988 |
| 4640651 | Computer memory disc and method for machining same A method for machining a thin workpiece to equalize machining induced stresses within the workpiece. The method produces a thin workpiece on which the machining lines intersect on the workpiece's machined surface. The method includes passing the workpiece... | 02/03/1987 |
| 4593496 | Cassette for loading discs in a grinding/polishing apparatus A cassette has a frame and a collar for rotatably supporting a plurality of discs in operative engagement with a grinding/polishing apparatus. The discs are rotatably removeably mounted on the collar and the latter is readily disengageably engageable with... | 06/10/1986 |
| 4586296 | Method of finishing the surface of a disc The method of finishing the surface of a disc, such as a disc whereon information is magnetically recorded for use in computers and the like. It involves urging against one side of a rotating disc, a polishing pad having a polishing compound or medium the... | 05/06/1986 |
| 4513538 | Method of and apparatus for the superfinishing of a thin-wall metal workpiece A honing, superfinishing or superfinished grinding system utilizes a tool rotatable about an axis for superfinishing a surface of a thin wall workpiece whose other surface is directly contacted by a coolant to remove heat directly opposite the machining s... | 04/30/1985 |
| 4502252 | Lapping machine In a lapping apparatus, washing water is ejected from washing water holes toward a carrier holding wafers after the wafers are polished. Thus, the wafers are separated from the carrier and upper and lower polishing members. Then, the carrier is forced up ... | 03/05/1985 |
| 4430782 | Apparatus and method for burnishing magnetic disks The burnishing tool has a plurality of holes in the planar surface which engages the flexible magnetic disk. Each hole contains a burnishing blade positioned at 45° to the direction of motion. A manifold connects each hole to a vacuum pump which draws ai... | 02/14/1984 |
| 4179852 | Method and apparatus for polishing floppy discs A method and apparatus for uniformly polishing the magnetic recording layer of a floppy disc by producing uniform relative velocities between the magnetic oxide material and the polishing medium across the floppy disc. The floppy disc is placed on a circu... | 12/25/1979 |
| 3943666 | Method and apparatus for burnishing flexible recording material A method and apparatus for treating the recording layer of flexible recording elements to remove protruding agglomerated particles formed during the fabrication process and to provide an extremely smooth surface finish on the order of 1.8AA or less. Sever... | 03/16/1976 |
