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Class Information
Number: 451/224
Name: Abrading > Machine > Rotary tool > Rotary cylinder > Reciprocating work holder > Rectilinear > Blade sharpener
Description: Abrading machine especially adapted to sharpen the edge of a cutting member.

Patents under this class:

Patent Number Title Of Patent Date Issued
8668555 Grinding machine and tool-support apparatus therefor Mar. 11, 2014
8348725 Grinding and honing fixture with clamping jaws Jan. 8, 2013
8033894 Razor blade sharpener and method of sharpening Oct. 11, 2011
8016646 Saw blade sharpening assembly Sep. 13, 2011
7918715 Device and method for sharpening blades Apr. 5, 2011
7329172 Rotary mower blade sharpener having movable griding wheels Feb. 12, 2008
7220169 Sharpening apparatus May. 22, 2007
6808441 Dental tool sharpener and method of use Oct. 26, 2004
6475074 Sharpener attachment for rotary tool Nov. 5, 2002
6471569 Rotary mower blade grinder Oct. 29, 2002
6422934 Skate sharpener Jul. 23, 2002
5868602 Method and device for resharpening knives used in size-reduction machines, especially in wood flaking machines Feb. 9, 1999
5667427 Method and apparatus for sharpening curved blades Sep. 16, 1997
5601473 Skate sharpening apparatus and method Feb. 11, 1997
5287657 Skate sharpening machine and method Feb. 22, 1994
5218787 Apparatus for sharpening implements Jun. 15, 1993
5127194 Apparatus for sharpening the blade of a skate Jul. 7, 1992
5048236 Saw blade tooth grinder for saws Sep. 17, 1991
5018310 Knife sharpener May. 28, 1991
5009039 Skate sharpening device Apr. 23, 1991
5009038 Automatic chamfering machine Apr. 23, 1991
4984391 Machine for forming woodworking tool Jan. 15, 1991
4961288 Apparatus for sharpening edge tools Oct. 9, 1990
4936053 Lawn mower blade sharpener apparatus Jun. 26, 1990
4630406 Method of using an elliptical form to generate a perfect radius in an insulated electrical conductor stripping blade Dec. 23, 1986
4558541 Ice skate sharpening method Dec. 17, 1985
4528778 Implement sharpening device Jul. 16, 1985
4528777 Knife sharpener Jul. 16, 1985
4418499 Cutter grinding machine Dec. 6, 1983
4392332 Ice skate sharpener Jul. 12, 1983
4265146 Device for sharpening lawn mower blades May. 5, 1981

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