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Class Information
Number: 451/294
Name: Abrading > Machine > Rotary tool > Means to rotate tool
Description: Abrading machine having detailed mechanisms for transmitting or varying the rotary drive motion to the abrading tool.










Sub-classes under this class:

Class Number Class Name Patents
451/295 Hydraulic driver 56


Patents under this class:
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Patent Number Title Of Patent Date Issued
8529317 Speed control device in a pneumatic power tool Sep. 10, 2013
8328601 Apparatus for grinding heated plane of cooler Dec. 11, 2012
8287334 Spindle with draw rod and current conductor Oct. 16, 2012
8235768 Cooler with ground heated plane and grinding method and apparatus thereof Aug. 7, 2012
8216027 Apparatus for applying a finish to a metal surface and method of apparatus construction Jul. 10, 2012
7997959 Pneumatic tool having a rotor with a wear-resistant vane slot Aug. 16, 2011
7722438 Air blow functionality for disc sander May. 25, 2010
7625264 Pneumatic dry wall sander Dec. 1, 2009
7544116 Grinder with easily replacing grinding tool Jun. 9, 2009
7001258 Polishing jig for rolling mill backup roll bearing Feb. 21, 2006
6960121 Method of honing bores Nov. 1, 2005
6942556 Polishing jig for bearing for use in back-up roll of rolling mill Sep. 13, 2005
6899593 Grinding apparatus for blending defects on turbine blades and associated method of use May. 31, 2005
6666524 End-rounding devices and methods for end-rounding Dec. 23, 2003
6503133 Eccentric plate grinding machine with a cylindrical housing Jan. 7, 2003
6450859 Method and apparatus for abrading a substrate Sep. 17, 2002
6390907 Machine tool and machine tool spindle and workpiece mounting-apparatus and grinding process May. 21, 2002
6290587 Electrically-powered polisher Sep. 18, 2001
6244943 Surface-processing apparatus Jun. 12, 2001
6203415 Direct drive water-driven rotary tool Mar. 20, 2001
6113753 Systems and methods for making a magnetic recording medium on a flexible metal substrate Sep. 5, 2000
6095900 Method for manufacturing a workpiece carrier backing pad and pressure plate for polishing semiconductor wafers Aug. 1, 2000
6074277 Polishing apparatus Jun. 13, 2000
5984765 Ultrasonic vibration composite grinding tool Nov. 16, 1999
5932789 Bolt thread inspection and thread polishing device Aug. 3, 1999
5833522 Machining spindle apparatus having a hydrostatic bearing for machine tools Nov. 10, 1998
5813903 Sanding apparatus with a brake system Sep. 29, 1998
5807169 Oscillating hand tool Sep. 15, 1998
5739609 Magnetic bearing apparatus Apr. 14, 1998
5667428 Apparatus for cutting and grinding a workpiece Sep. 16, 1997
5662517 Compressed-air-driven metal working machine Sep. 2, 1997
5496207 Orbital disk grinder Mar. 5, 1996
5462470 Grinding wheel spindle assembly Oct. 31, 1995
5443413 Brushless spindle motor for a grinding machine including hydrostatic bearings Aug. 22, 1995
5335560 Table-top grinder power transmission mechanism Aug. 9, 1994
5323560 Automobile polisher Jun. 28, 1994
5317838 Sanding apparatus Jun. 7, 1994
5205078 Rotary apparatus Apr. 27, 1993
5155941 Industrial endoscope system having a rotary treatment member Oct. 20, 1992
5136816 Edge sharpener for skis Aug. 11, 1992
5125187 Mounted non-directional rotor finishing device Jun. 30, 1992
5065546 Grinding wheel for producing internal profilings Nov. 19, 1991
5031360 Broken blade detector for semiconductor die saws Jul. 16, 1991
5027280 Machining apparatus having a main spindle supported by magnetic bearings Jun. 25, 1991
4920702 Portable grinder May. 1, 1990
4819388 Spin-blast tool with rotational velocity restraint Apr. 11, 1989
4811721 Wheel dresser Mar. 14, 1989
4750298 Method and device for controlling the drive of different successively operated grinding disks Jun. 14, 1988
4739676 Drive for a machine for the manufacture of an electrode-workpiece by means of a form grinding tool of a similar spatial shape Apr. 26, 1988
4700510 Spindle stock unit for surface grinding machine Oct. 20, 1987

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