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Class Information
Number: 451/374
Name: Abrading > Work holder > Clamp > Edge tool > Rotary cutter
Description: Clamping edge tool holder especially adapted to hold an edge tool while being abraded, which tool, when used, will turn more than 360° about an axis.

Sub-classes under this class:

Class Number Class Name Patents
451/375 Drill 75

Patents under this class:

Patent Number Title Of Patent Date Issued
7946905 Bit sharpening apparatus and method of using May. 24, 2011
7040209 Tool fixtures for use in rotational processing May. 9, 2006
6907809 Positioning device for saw blades Jun. 21, 2005
5921847 Grinding fixture and method of remanufacturing tool inserts Jul. 13, 1999
5620363 Powered grinding tool Apr. 15, 1997
5518439 Process and apparatus for the finish grinding of cutting tools of a granulating device May. 21, 1996
5222330 Fixture for holding circular cutting tool during its sharpening Jun. 29, 1993
5142947 Adjustable motor-operated circular saw sharpener Sep. 1, 1992
4995301 Tri-motion grinding fixture Feb. 26, 1991
4937982 Positioning apparatus for tool sharpening Jul. 3, 1990
4747607 Lobed chuck for saw regrinding May. 31, 1988
4619079 Grinding machine for ball end mills with helical cutter teeth Oct. 28, 1986
4597226 Apparatus for sharpening end mills Jul. 1, 1986
4576528 Rotary tool holder Mar. 18, 1986
4546575 Method for precision grinding of end mounted objects Oct. 15, 1985
4532830 Sawtooth grinding machine Aug. 6, 1985
4531328 Tooth rest for cutter grinder Jul. 30, 1985
4509299 Means for refacing a fuel nozzle and method thereof Apr. 9, 1985
4497139 Apparatus for precision grinding of end mounted objects Feb. 5, 1985
4461121 Program-controlled grinding machine, particularly for sharpening of rotatable cutting tools Jul. 24, 1984
4434683 Saw-advancing means with edge engaging pad Mar. 6, 1984
4406090 Methods and apparatus for grinding spiral tool cutting edges having non-circumferentially relieved edges Sep. 27, 1983
4373302 Sharpening apparatus for circular blades Feb. 15, 1983
4370834 Machines for grinding toothed cutting tools Feb. 1, 1983
4341044 Machine for grinding gashes in end mill cutters Jul. 27, 1982
4341046 Tool grind fixture Jul. 27, 1982
4335543 Method and means of manufacturing an improved disc reel mower Jun. 22, 1982
4287686 Clamping apparatus for clamping cutter blades of a gear cutting machine at a grinding machine Sep. 8, 1981
4276722 Tap sharpener Jul. 7, 1981
4261142 Form relieving apparatus Apr. 14, 1981
4172340 Work holder for grinder Oct. 30, 1979
4163345 Arrangement for the grinding of rotary profile cutters Aug. 7, 1979
4134235 One chuck grinding apparatus for end milling cutters and the like Jan. 16, 1979
4110936 Grinding arbor Sep. 5, 1978
4106242 Workhead for an automatic bur grinding machine Aug. 15, 1978
4102224 Grinding machine with means for advancing a saw Jul. 25, 1978
4098149 Grinding machine Jul. 4, 1978
4004377 Machine for forming a locator pin Jan. 25, 1977

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