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Class Information
Number: 451/220
Name: Abrading > Machine > Rotary tool > Rotary cylinder > Reciprocating work holder > Rectilinear > Work rotating > Long helix
Description: Abrading machine which grinds a helical form on a workpiece.

Patents under this class:

Patent Number Title Of Patent Date Issued
6120364 Grinding fixture and assembly Sep. 19, 2000
5807164 Method and device for regrinding grooved tools Sep. 15, 1998
5321912 Mover reel blade relief grinding device Jun. 21, 1994
5125186 Drill grinding machine Jun. 30, 1992
5097634 Tool grinder apparatus and method Mar. 24, 1992
4916866 End mill sharpener Apr. 17, 1990
4890419 Device for grinding cutting tools having straight and spiral grooves Jan. 2, 1990
4546575 Method for precision grinding of end mounted objects Oct. 15, 1985
4497139 Apparatus for precision grinding of end mounted objects Feb. 5, 1985
4339894 Convoluted shirring wheel Jul. 20, 1982
4163345 Arrangement for the grinding of rotary profile cutters Aug. 7, 1979
4157635 Grinding machine for grinding a helical groove in a workpiece of tapering axial section Jun. 12, 1979

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