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US 2010/0248598 A1Published application
Sharpener
AssigneeKYOCERA Corporation
InventorSatoshi Matsuda
Life of this patent
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Abstract
A sharpening device operable to maintain a stable angle of a cutting edge during sharpening is disclosed. A sharpening member reciprocates parallel to a first direction. The sharpening member comprises a sharpening surface comprising at least one groove along the first direction. Reciprocation can reduce a presence of a sharpening residue on the sharpening surface while maintaining a stable sharpening angle of a cutting edge.
Claims20
A sharpener, comprising:
- a sharpening member reciprocating in a first direction and comprising a sharpening surface with a groove along the first direction.
A sharpener, comprising:
- sharpening means operable to reciprocate in a first direction and comprising a sharpening surface with a groove along the first direction.
Dependencies are inferred from the claim text.