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| Number | Title | Issue Date |
| 6916234 | Polishing machine A polishing machine in which adverse influence caused by a surface condition of a retainer ring can be reduced with a simple structure. The polishing machine includes a rotatable polishing plate; a top ring including a holding plate for holding and pressing a wafer ... | 07/12/2005 |
| 6758732 | Backing plate and disc configured for blowing angled grinding A combination abrasive disc and backing plate provide workpiece viewing and blowing collectively through aligned viewing apertures. The backing plate has a bottom surface adapted to support the abrasive disc and an opposed top surface. Coordinated alignment of the v... | 07/06/2004 |
| 4860500 | Passive actuator to maintain a constant normal cutting force during robotic deburring Precision control over the cutting force during robotic deburring and edge contouring is obtained by use of a "zero spring rate" driver. The driver consists of an air cylinder with a low friction piston. An accumulator is used in between an air supply lin... | 08/29/1989 |
| 4848039 | Method and apparatus for grinding multiple workpieces A method and apparatus are provided for effecting high production rate grinding of a plurality of workpieces on a grinding wheel rotating about an axis with reduced power consumption. Each workpiece is mounted in a holding fixture adjacent the grinding wh... | 07/18/1989 |
| 4800683 | Grinding machine for the grinding of elongated workpieces The grinding toolholders of a grinding machine for the fine grinding or honing of a camshaft or other workpiece are displaced along nonrotatable threaded spindles by high-precision rotatable nuts which are driven by a stepping motor on each holder via a c... | 01/31/1989 |
| 4393627 | Reversing screw/high-low speed level wind screw Sharpening mechanism for moving at a variable speed along the length of the sharp edge of a reciprocating knife used in cloth cutting machines is disclosed. The apparatus includes a driven grinding apparatus (26) such as is known in the art for contacting... | 07/19/1983 |
