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Class Information
Number: 76/82
Name: Metal tools and implements, making > Tool sharpeners > Cutting
Description: Miscellaneous devices and machines for sharpening cutters by removing the material of the cutter adjacent to the edge by cutting, filing, or chipping, as distinguished from abrading or swaging. There are a few patents for scissors-sharpeners, the action of which is somewhat analogous to swaging sharpeners.










Sub-classes under this class:

Class Number Class Name Patents
76/84 Butchers' steels 15
76/88 Cutter and guide 72
76/82.1 Lawn mower 24
76/ Multiple cutter 0
76/85 Rotary 12
76/82.2 Scissors 32
76/83 Skate 62


Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
8678882 Combination sharpener assembly Mar. 25, 2014
8627747 Device for treating blades to improve their cutting properties Jan. 14, 2014
8597083 Blade sharpening system for multiple blade shapes Dec. 3, 2013
8590427 Blade storage device including a blade sharpener and a honing device Nov. 26, 2013
8430720 Apparatus for precision steeling/conditioning of knife edges Apr. 30, 2013
8342915 Conditioning and cutting apparatus Jan. 1, 2013
8267752 Knife sharpening device of circular knife Sep. 18, 2012
8074535 Device for treating blades to improve their cutting properties Dec. 13, 2011
8016646 Saw blade sharpening assembly Sep. 13, 2011
7967666 Blade sharpener Jun. 28, 2011
7900536 Chain saw sharpener with composite wiskar Mar. 8, 2011
7553218 Multi-bladed razor cartridge sharpener with aloe vera gel lubricant Jun. 30, 2009
7374475 Hand-held sharpener device May. 20, 2008
7229345 Knife sharpener Jun. 12, 2007
7172500 Knife sharpener Feb. 6, 2007
7121935 Blade sharpener Oct. 17, 2006
7107684 Blade sharpening for electric shavers Sep. 19, 2006
7066793 Mechanical non-serrated knife grinder and honer Jun. 27, 2006
7037175 Method of sharpening cutting edges May. 2, 2006
6971949 Sharpening guide for dental tools Dec. 6, 2005
6868572 Screwdriving and countersinking bit Mar. 22, 2005
6817269 Edge sharpener Nov. 16, 2004
6802763 Apparatus for sharpening blades Oct. 12, 2004
6769327 Knife and blade sharpener Aug. 3, 2004
6726551 Manual knife sharpener with angle control Apr. 27, 2004
6679757 Shaping tool and method for shaping curved surfaces on workpieces Jan. 20, 2004
6676500 Drill bit sharpener Jan. 13, 2004
6634257 Sharpening method and apparatus for rotary knives Oct. 21, 2003
6626066 Folding sharpener tool Sep. 30, 2003
6361408 Method and apparatus for finishing surfaces Mar. 26, 2002
6163965 Spherical cutter and cutter holder arrangement Dec. 26, 2000
6161453 Saw chain sharpener for a chain saw Dec. 19, 2000
6151991 Terra cotta sharpening block Nov. 28, 2000
6146257 Manually-operated sharpening apparatus Nov. 14, 2000
6119554 Device for sharpening blades Sep. 19, 2000
6117002 Blade sharpener Sep. 12, 2000
6101898 Knife and scissors sharpener Aug. 15, 2000
6074293 Apparatus for finishing surfaces Jun. 13, 2000
6067880 Deburring device May. 30, 2000
6062951 Method of making a surgical instrument cutting jaw May. 16, 2000
6062970 Stropping device of blade for safety razors May. 16, 2000
6026712 Tool dressing device Feb. 22, 2000
6009774 Device for manually sharpening cutting edges of cutting tools Jan. 4, 2000
5700189 Knife-blade sharpening apparatus Dec. 23, 1997
5655959 Knife edge sharpener Aug. 12, 1997
5605495 Knife with sharpening member handles Feb. 25, 1997
5588340 Hand held implement sharpening device Dec. 31, 1996
5505656 Dental instrument sharpening guide Apr. 9, 1996
5499556 Portable ice skate blade sharpener Mar. 19, 1996
5492037 Skate sharpening mechanism Feb. 20, 1996

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