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| Number | Title | Issue Date |
| 7125313 | Apparatus and method for abrading a workpiece An apparatus for abrading a workpiece comprises a first plate assembly having a first surface for supporting a workpiece and a second plate assembly having a second surface for engaging the workpiece to abrade a portion thereof. A displacement shaft is mounted for m... | 10/24/2006 |
| 6362107 | Polishing pad and polishing device The present invention relates to a polishing pad which is characterized in that it has a polishing layer of rubber A-type microhardness at least 80° and a cushioning layer of bulk modulus at least 40 MPa and tensile modulus in the range 0.1 MPa to 20 MPa... | 03/26/2002 |
| 5951377 | Microfinishing machine A sizing and finishing machine includes a mechanism for rotating an associated workpiece and a first microfinishing belt for selectively contacting the associated workpiece. The belt has a maximum grit size of 60 microns. A structure is provided for rotat... | 09/14/1999 |
| 5827111 | Method and apparatus for grinding wafers A grinding machine for grinding a wafer includes a pressure sensing grinding wheel having a disk portion, an annular portion depending from the disk portion that includes a plurality of cavities, a grinding tooth disposed in each cavity, and a pressure se... | 10/27/1998 |
| 5562527 | Grinding machine for grinding eyeglass lenses A grinding machine for grinding eyeglass lenses includes at least one grinding wheel rotatably mounted on a chassis. A carriage is pivoted to the chassis to pivot about an axis parallel to the rotation axis of the grinding wheel. A support spindle is rota... | 10/08/1996 |
| 4905417 | Numerical control grinding machine In a numerical control grinding machine using a grinding wheel made of cubic boron nitride, a computerized numerical controller controls the infeed movement of a wheel head to effect a rough grinding, a drifty grinding and a fine grinding on a rotating cy... | 03/06/1990 |
| 4858391 | Sizing apparatus for an internal grinder Sizing apparatus for an internal grinder having an oscillation motor for oscillating a grinder wheel contacting the inner peripheral surface of an annular work piece, a sizing device to generate sizing signals for measuring the bore of the work piece, a m... | 08/22/1989 |
| 4819515 | Method and apparatus for grinding saw teeth An apparatus for grinding saw teeth of a saw blade measures and grinds the tip of each tooth independently before advancing successively each tooth on the saw blade for grinding. The apparatus includes a pair of grinding wheels movable toward and away fro... | 04/11/1989 |
| 4802311 | Method of grinding rotary workpieces The grinding of successive workpieces in a surface grinding machine with automatic transport of workpieces to and from the grinding station is interrupted at preselected intervals to replace the workpiece at the grinding station with a pattern which is co... | 02/07/1989 |
| 4456516 | Shaft rounding apparatus An apparatus is provided which machines a generally cylindrical shaft in such a way so as to improve its roundness. A bracket is shaped to be slidably associated with the shaft in a two point contact. The bracket has a measuring means attached to it which... | 06/26/1984 |
| 4455789 | Self-controlled honing machine To insure that cylindrical bores, and particularly blind bores (8) in a workpiece (9) are truly cylindrical, or of predetermined geometry even in the region adjacent the bottom of the blind bores, a honing blade carrier (4) has a set of long honing blades... | 06/26/1984 |
