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Class Information
Number: 451/403
Name: Abrading > Work holder > Indexing
Description: Work holder with structure to allow the position of the workpiece to be changed with regular steplike movements.










Sub-classes under this class:

Class Number Class Name Patents
451/404 Hand operated 20


Patents under this class:
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Patent Number Title Of Patent Date Issued
8668555 Grinding machine and tool-support apparatus therefor Mar. 11, 2014
7346969 Machining method using multiple workpiece mounting device for manufacturing structures Mar. 25, 2008
7210990 Treatment apparatus for treating workpieces or groups of workpieces May. 1, 2007
7196009 Lapping carrier, apparatus for lapping a wafer and method of fabricating a lapping carrier Mar. 27, 2007
7169022 Method and apparatus for creating a groove in a collector ring of an electrical device Jan. 30, 2007
7153198 Fixture for slider lapping, lapping device and lapping method Dec. 26, 2006
7140949 Tool and process for chrome plating a vehicle wheel surface Nov. 28, 2006
6974365 Machine and method for machining workpieces of wood, plastic material or the like Dec. 13, 2005
6942551 Method for forming a cutting edge along an edge portion of a blade stock Sep. 13, 2005
6939209 Method and apparatus for global die thinning and polishing of flip-chip packaged integrated circuits Sep. 6, 2005
6907809 Positioning device for saw blades Jun. 21, 2005
6884154 Method for apparatus for polishing outer peripheral chamfered part of wafer Apr. 26, 2005
6786806 Rotary mower blade sharpener Sep. 7, 2004
6758721 Apparatus and method for lapping magnetic heads Jul. 6, 2004
6699103 Mower reel blade grinding device Mar. 2, 2004
6685544 Automatic mower reel grinder Feb. 3, 2004
6629345 Chucking device Oct. 7, 2003
6585578 Girinding wheel machine bracket adjustable in angle Jul. 1, 2003
6375556 Grinding apparatus for grinding workpieces Apr. 23, 2002
6290581 Automatic mower reel grinder Sep. 18, 2001
6206765 Non-rotational dresser for grinding stones Mar. 27, 2001
6185802 Multiple clamping device for work pieces on a carrier Feb. 13, 2001
6186867 Method for manufacturing precisely shaped parts Feb. 13, 2001
6168499 Grinding apparatus for semiconductor wafers Jan. 2, 2001
6139412 Fixture for manufacturing precisely shaped parts Oct. 31, 2000
6120358 Apparatus and method for grinding a punch Sep. 19, 2000
6070496 Method and apparatus for crankpin phase indexing Jun. 6, 2000
6017263 Method for manufacturing precisely shaped parts Jan. 25, 2000
6010394 Automatic mower reel grinder Jan. 4, 2000
5906539 Work station for turret tooling May. 25, 1999
5879224 Reel assembly grinder with automatic indexing and grinding control Mar. 9, 1999
5759092 Apparatus for sharpening circular saw teeth Jun. 2, 1998
5759085 Process for avoiding overstressing a workpiece during grinding Jun. 2, 1998
5674110 Machine and a process for sizing and squaring slabs of materials such as a glass, stone and marble, ceramic tile and the like Oct. 7, 1997
5661883 Machine tool having revolvable spindles Sep. 2, 1997
5643065 Indexing mechanism for rotatably mounted work holding spindle Jul. 1, 1997
5618228 Holding fixture for a wheel and tire assembly Apr. 8, 1997
5549508 Sharpening lawn mower blades Aug. 27, 1996
5525094 Method and device for resharpening knives used in cutting machines Jun. 11, 1996
5351578 Resilient compressible clamping surface for circular saw blades Oct. 4, 1994
5274957 Band saw sharpener Jan. 4, 1994
5142947 Adjustable motor-operated circular saw sharpener Sep. 1, 1992
5111562 Spindle apparatus for holding a workpiece May. 12, 1992
5058324 Gem stone facet forming apparatus Oct. 22, 1991
4908995 Rail grinding method and apparatus Mar. 20, 1990
4872289 Cutter Oct. 10, 1989
4729192 Machining apparatus and workpiece holding assembly therefor Mar. 8, 1988
4715148 Gem faceting machine Dec. 29, 1987
4680896 Tool unloading mechanism for automatic tool grinding machine Jul. 21, 1987
4624081 Turn-around mechanism for workpieces in grinding machines Nov. 25, 1986

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