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Class Information
Number: 451/216
Name: Abrading > Machine > Rotary tool > Rotary cylinder > Reciprocating work holder > Rectilinear > Rocking
Description: Abrading machine in which the work holder moves to-and-fro about an axis that coincides with the point of engagement of the abrading tool and the workpiece.










Sub-classes under this class:

Class Number Class Name Patents
451/217 Hob, tap, or fluted thread 9


Patents under this class:

Patent Number Title Of Patent Date Issued
6526638 Device for producing relative motion with two translational degrees of freedom Mar. 4, 2003
6367135 Device for producing relative motion with two translational degrees of freedom Apr. 9, 2002
5921847 Grinding fixture and method of remanufacturing tool inserts Jul. 13, 1999
5895311 Abrasive device that maintains normal line of contact with curved abrasive surface and method of using same Apr. 20, 1999
5679054 Apparatus for grinding the screen panel of a cathode ray tube Oct. 21, 1997
5125186 Drill grinding machine Jun. 30, 1992
4837983 Drill bit sharpening apparatus Jun. 13, 1989
4782633 Drill bit sharpening method Nov. 8, 1988
4658549 Drill bit sharpening device Apr. 21, 1987
4655005 Apparatus and process for dry cutting of plastic optical lenses Apr. 7, 1987
4635403 Edge rounding machine Jan. 13, 1987
4589231 Apparatus and process for dry cutting of plastic optical lenses May. 20, 1986
4584795 Numerical control grinding machine for grinding a taper portion of a workpiece Apr. 29, 1986
4489523 Apparatus for regrinding step drills Dec. 25, 1984
4365444 Drill point grinding machine Dec. 28, 1982
4292699 Grinding machine for delimited groove machining on cutting tools Oct. 6, 1981
4109419 Ice skate sharpening devices Aug. 29, 1978
3972148 Machine tool for finish-grinding the inner surfaces of annular workpieces Aug. 3, 1976
3930342 Sharpener for twist drills Jan. 6, 1976











 
 
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