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Class Information
Number: 451/272
Name: Abrading > Machine > Rotary tool > Rotary disk > Reciprocating work holder
Description: Abrading machine having means to carry the workpiece in an alternating back-and-forth movement.










Sub-classes under this class:

Class Number Class Name Patents
451/273 Rectilinear 29
451/276 Rocking 39


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
7666065 Shaping apparatus Feb. 23, 2010
7513820 Method and apparatus for producing micro-texture on a slider substrate using chemical and mechanical polishing techniques Apr. 7, 2009
7329173 Tool grinding machine Feb. 12, 2008
6991524 Method and apparatus for reconditioning digital discs Jan. 31, 2006
6872123 Method of and apparatus for lapping magnetic head slider Mar. 29, 2005
6758725 Lapping method and lapping apparatus Jul. 6, 2004
6679760 Lapping method of magnetic head slider and lapping method of bar Jan. 20, 2004
6604989 Manufacturing method and apparatus for magnetic head sliders Aug. 12, 2003
6375539 Lapping machine, lapping method, and row tool Apr. 23, 2002
6068545 Workpiece surface processing apparatus May. 30, 2000
5908530 Apparatus for chemical mechanical polishing Jun. 1, 1999
5882156 Method and apparatus for milling a segment of a spherical surface Mar. 16, 1999
5816899 Micro precise polishing apparatus Oct. 6, 1998
5749769 Lapping process using micro-advancement for optimizing flatness of a magnetic head air bearing surface May. 12, 1998
5603156 Lapping process for minimizing shorts and element recession at magnetic head air bearing surface Feb. 18, 1997
5562530 Pulsed-force chemical mechanical polishing Oct. 8, 1996
5165205 Device for vibrating materials to be ground Nov. 24, 1992
5140782 Tool and method for forming a lens Aug. 25, 1992
4885873 Abrading apparatus for spherically shaping workpieces Dec. 12, 1989
4881518 Apparatus for manufacturing and handling thin wafers Nov. 21, 1989
4246727 Fixture for use in grinding and polishing table facets of gems Jan. 27, 1981
4010574 Apparatus for contouring magnetic head surfaces and method therefor Mar. 8, 1977











 
 
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