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Class Information
Number: 451/331
Name: Abrading > Work feeder
Description: Means for advancing a workpiece into abrading contact with the abrading instrument without regard to the special character of that instrument or of the means for securing the workpiece against displacement.

Sub-classes under this class:

Class Number Class Name Patents
451/339 Ejector or unloader 118
451/336 Endless 47
451/334 Reciprocating 37
451/332 Rotary 53
451/338 Skewed feed rollers 7

Patents under this class:

Patent Number Title Of Patent Date Issued
8657648 Processing apparatus having four processing units Feb. 25, 2014
8613643 Work feeder for roller end face working machine, roller end face working machine and rollers for roller bearing Dec. 24, 2013
8597073 Method and device for machining the leading edge of a turbine engine blade Dec. 3, 2013
8506358 Method for the operation of a gear or profile grinding machine and gear or profile grinding machine Aug. 13, 2013
7828627 O.D. centerless grinding machine Nov. 9, 2010
7811154 Grinding apparatus Oct. 12, 2010
7585205 Substrate polishing apparatus and method Sep. 8, 2009
7371151 Lens stocking apparatus and lens processing system having the same May. 13, 2008
7354335 CMP apparatus and load cup mechanism Apr. 8, 2008
7335090 Substrate processing apparatus and substrate handling method Feb. 26, 2008
7160175 Attitude control device and precision machining apparatus Jan. 9, 2007
6648979 Apparatus and method for wafer cleaning Nov. 18, 2003
6638150 Workpiece holder for a machining apparatus and a corresponding cross-cut machine Oct. 28, 2003
6413356 Substrate loader for a semiconductor processing system Jul. 2, 2002
6375556 Grinding apparatus for grinding workpieces Apr. 23, 2002
6155908 Work-loading method and surface-grinding apparatus with work position deviation-adjusting mechanism Dec. 5, 2000
6149498 Semiconductor wafer handling system Nov. 21, 2000
6113753 Systems and methods for making a magnetic recording medium on a flexible metal substrate Sep. 5, 2000
5951379 Bumper polishing machine Sep. 14, 1999
5921850 Apparatus for loading a workpiece into a through-feed mechanism Jul. 13, 1999
5865670 Wafer demount apparatus Feb. 2, 1999
5779426 Loading and unloading unit for polishing apparatus Jul. 14, 1998
5653623 Polishing apparatus with improved exhaust Aug. 5, 1997
5584747 Shot blasting apparatus for polishing and cleaning wheel Dec. 17, 1996
5367836 Automatic drill loader Nov. 29, 1994
5363598 Machine tool capable of grinding a workpiece with a truing apparatus Nov. 15, 1994
5347896 Automated collet loading for the manufacture of contact lenses Sep. 20, 1994
5347761 Method for determining the deformation of workpiece on grinding machine Sep. 20, 1994
5181346 Thru-feed lapping apparatus Jan. 26, 1993
5148638 Apparatus for grinding an annular workpiece Sep. 22, 1992
5097630 Specular machining apparatus for peripheral edge portion of wafer Mar. 24, 1992
5042203 Abrasive disc exchange apparatus for use in vertical-spindle grinding machine Aug. 27, 1991
5027563 Work transfer device of grinding machine Jul. 2, 1991
5016397 Method and apparatus for removing wrappers from coin rolls May. 21, 1991
4944119 Apparatus for transporting wafer to and from polishing head Jul. 31, 1990
4930952 Glasses frame carrier for a reproducing machine Jun. 5, 1990
4769954 Apparatus for supporting and grinding an edge of a planar glass workpiece Sep. 13, 1988
4753047 Transferring and loading device for honeycomb structures Jun. 28, 1988
4651472 Method of and machine for grinding rotary workpieces Mar. 24, 1987
4563838 Apparatus comprising a machining tool for machining rollers Jan. 14, 1986
4562669 Machine for grinding cylindrical workpieces Jan. 7, 1986
4519166 Workpiece handling apparatus for grinding machines May. 28, 1985
4434583 Automatically adjustable workpiece guide and feed mechanism Mar. 6, 1984
4426811 Method of and apparatus for grinding the edges of glass sheets Jan. 24, 1984
4373296 Deburring apparatus for workpieces Feb. 15, 1983
4156992 Feed control adapter Jun. 5, 1979

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