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Class Information
Number: 76/85
Name: Metal tools and implements, making > Tool sharpeners > Cutting > Rotary
Description: Disk-sharpening devices, including cutting or filing tools adapted to be rotated about the disk or against which the disk is rotated. This subclass comprises, mainly, devices for sharpening harrow disks.

Patents under this class:

Patent Number Title Of Patent Date Issued
8690642 Agricultural implement mountable blade sharpening system Apr. 8, 2014
7401536 Method or jointing the cutting edge of at least one cutting blade of a rotating tool Jul. 22, 2008
6634257 Sharpening method and apparatus for rotary knives Oct. 21, 2003
5775180 Sharpening device Jul. 7, 1998
5209150 Sharpening device for cold cuts cutting machines May. 11, 1993
5152105 Device for sharpening rotary blades Oct. 6, 1992
5105582 Cup cutter sharpener Apr. 21, 1992
5085110 Cutting device for the longitudinal cutting of foil lengths Feb. 4, 1992
5029417 Edge finishing tool Jul. 9, 1991
4635406 Apparatus for stripping fish line from a spool and sharpening fish hooks Jan. 13, 1987
4537103 Arrangement for a cutting device Aug. 27, 1985
4263754 Shaping an arcuate surface on a wheel blank Apr. 28, 1981

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