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Class Information
Number: 451/212
Name: Abrading > Machine > Rotary tool > Rotary cylinder > 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
451/229 Blade sharpener 17
451/230 Harvester knife 0
451/213 Rectilinear 40
451/226 Rocking 22


Patents under this class:

Patent Number Title Of Patent Date Issued
8668555 Grinding machine and tool-support apparatus therefor Mar. 11, 2014
8591289 Multi-spindle chemical mechanical planarization tool Nov. 26, 2013
8535118 Multi-spindle chemical mechanical planarization tool Sep. 17, 2013
7727050 Vibrating device Jun. 1, 2010
7329173 Tool grinding machine Feb. 12, 2008
7125316 Method and device for producing molds for toothed belts Oct. 24, 2006
7056189 Grinding method of a workpiece and grinding apparatus Jun. 6, 2006
6942551 Method for forming a cutting edge along an edge portion of a blade stock Sep. 13, 2005
6916232 Apparatus for superpolishing the inside surface of a seam of a continuous photoreceptor belt Jul. 12, 2005
6623340 Grinding jig Sep. 23, 2003
6419443 Glass product machining apparatus Jul. 16, 2002
5800249 Fiber shaper Sep. 1, 1998
5649853 Drill bit grinding machine Jul. 22, 1997
5634842 Apparatus for the precision grinding of conical seats for cylindrical nozzle workpieces Jun. 3, 1997
4993189 Floating fixture platen Feb. 19, 1991
4958463 Optical surface quality improving arrangement Sep. 25, 1990
4928432 Rods precision cutting-off and end surface grinding machine May. 29, 1990
4495732 Semiconductor wafer sectioning machine Jan. 29, 1985











 
 
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