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Class Information
Number: 451/209
Name: Abrading > Machine > Rotary tool > Rotary cylinder > Opposed abrading tools > Work rotating
Description: Abrading machine in which the workpiece turns about an axis.










Sub-classes under this class:

Class Number Class Name Patents
451/210 Rotary work holder 27


Patents under this class:

Patent Number Title Of Patent Date Issued
8591289 Multi-spindle chemical mechanical planarization tool Nov. 26, 2013
8535118 Multi-spindle chemical mechanical planarization tool Sep. 17, 2013
7029377 Buffing head and method for reconditioning an optical disc Apr. 18, 2006
6884154 Method for apparatus for polishing outer peripheral chamfered part of wafer Apr. 26, 2005
6811465 Workpiece grinding method which achieves a constant stock removal rate Nov. 2, 2004
6663471 Method of grinding half toroidal CVT disk Dec. 16, 2003
6616516 Method and apparatus for asymmetric processing of front side and back side of semiconductor substrates Sep. 9, 2003
6461224 Off-diameter method for preparing semiconductor wafers Oct. 8, 2002
6450865 Non-contact support for cylindrical machining Sep. 17, 2002
6368192 Wafer preparation apparatus including variable height wafer drive assembly Apr. 9, 2002
6261160 Method and apparatus for specular-polishing of work edges Jul. 17, 2001
6220927 Lens grinding apparatus Apr. 24, 2001
6193591 Loading system and collect assembly for grinding a workpiece Feb. 27, 2001
5607348 Disc brake grinding apparatus and method Mar. 4, 1997
5486134 System and method for texturing magnetic data storage disks Jan. 23, 1996
5484327 Method and apparatus for simultaneously grinding a workpiece with first and second grinding wheels Jan. 16, 1996
4964242 Apparatus for texturing rigid-disks used in digital magnetic recording systems Oct. 23, 1990
4862645 Chamfering machine Sep. 5, 1989
4827751 Device for machining rolls in a rolling stand May. 9, 1989
4767438 Apparatus for cleaning material transporting rollers Aug. 30, 1988
4697387 Device for grinding tooth profiles of a rotating toothed workpiece Oct. 6, 1987
4386483 Method and apparatus for grinding convergent conical surfaces Jun. 7, 1983
4254588 Method of controlling infeed in the compound grinding Mar. 10, 1981
4112625 Device for grinding elongated cylindrical workpieces Sep. 12, 1978
4052822 Method and apparatus for abrasively cutting objects Oct. 11, 1977
4024596 Apparatus for cleaning slices of material May. 24, 1977











 
 
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