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Class Information
Number: 451/274
Name: Abrading > Machine > Rotary tool > Rotary disk > Reciprocating work holder > Rectilinear > Work rotating
Description: Abrading machine in which the work is rotated during reciprocation of the work holder.










Sub-classes under this class:

Class Number Class Name Patents
451/275 Gear generating 17


Patents under this class:

Patent Number Title Of Patent Date Issued
8137162 Semiconductor wafer polishing machine Mar. 20, 2012
8118645 Polishing method, polishing pad, and polishing system Feb. 21, 2012
8079894 Chemical mechanical polishing system having multiple polishing stations and providing relative linear polishing motion Dec. 20, 2011
7614939 Chemical mechanical polishing system having multiple polishing stations and providing relative linear polishing motion Nov. 10, 2009
7413503 Elastic polishing tool and lens polishing method Aug. 19, 2008
7097544 Chemical mechanical polishing system having multiple polishing stations and providing relative linear polishing motion Aug. 29, 2006
6575818 Apparatus and method for polishing multiple semiconductor wafers in parallel Jun. 10, 2003
6511368 Spherical drive assembly for chemical mechanical planarization Jan. 28, 2003
6146250 Process for forming a semiconductor device Nov. 14, 2000
6139400 Polishing system and method with polishing pad pressure adjustment Oct. 31, 2000
6116987 Method of polishing hard disc and polishing apparatus therefor Sep. 12, 2000
6042459 Surface machining method and apparatus Mar. 28, 2000
5845630 Process and apparatus for fabricating a semiconductor wafer Dec. 8, 1998
5706568 Automated chamfering apparatus and method Jan. 13, 1998
5364210 Machine tool Nov. 15, 1994
5035088 Machine tool Jul. 30, 1991
4916866 End mill sharpener Apr. 17, 1990
4827994 Barrel shaver May. 9, 1989
4638603 Device for sharpening single-flute countersinks Jan. 27, 1987
4580367 Abrading apparatus Apr. 8, 1986
4536993 Grinding machine Aug. 27, 1985
4535570 Machine for beveling Aug. 20, 1985
4512109 Rolling gear apparatus for an involute tooth gear cutting machine Apr. 23, 1985
4481742 Machine tool elevating and guiding apparatus Nov. 13, 1984
4331452 Apparatus for crystal shaping May. 25, 1982
4322917 Double-head automatic grinding machine Apr. 6, 1982
4287687 Variable work holding device for grinding gemstones Sep. 8, 1981











 
 
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