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Class Information
Number: 451/252
Name: Abrading > Machine > Rotary tool > Rotary cylinder > Work rotating > Rotary work holder > Valve abrader
Description: Abrading machine particularly adapted to grind a sealing surface of a member intended to be used to contain and adjustably restrict the flow of fluid.










Patents under this class:

Patent Number Title Of Patent Date Issued
6921322 Apparatus and methods for refinishing a surface in-situ Jul. 26, 2005
6119564 Adjustable grinding support and grinding support assembly using same Sep. 19, 2000
5934976 Method for grinding a taper surface and grinding apparatus using the same Aug. 10, 1999
5928061 Wheel-head feed mechanism and grinder using the same Jul. 27, 1999
5853316 Method of and apparatus for grinding control edges of a control bush Dec. 29, 1998
5813900 Grinding machine for grinding cylindrical workpieces Sep. 29, 1998
5749774 Valve refacing tool May. 12, 1998
5651720 Bore size correcting apparatus Jul. 29, 1997
5441438 Measuring and recording apparatus using fluid as the measuring media for use in the manufacture of hydraulic power steering valves Aug. 15, 1995
5439412 Machine for use in the manufacture of power steering valves Aug. 8, 1995
5351363 Poppet valve cleaner Oct. 4, 1994
5337521 Valve grinder Aug. 16, 1994
5319916 Valve stem polishing method Jun. 14, 1994
5199222 Device for grinding the head of a valve, especially of an internal-combustion engine Apr. 6, 1993
5159786 Method for regrinding a worn valve Nov. 3, 1992
5133154 Apparatus and fixture for use in grinding the needle tip and the needle seat in a fuel valve Jul. 28, 1992
5070653 Centerless valve regrinder Dec. 10, 1991
4987701 Endless belt valve grinder Jan. 29, 1991
4630403 Method and machine for grinding rotationally symmetrical workpieces Dec. 23, 1986
4612732 Machine for grinding ophthalmic lenses Sep. 23, 1986
4608784 Work spindle device Sep. 2, 1986
4428160 Centerless valve grinding Jan. 31, 1984











 
 
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