Powered sharpener with cold forging member
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United States of America Patent
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Mar 13, 2018
Issued Date -
N/A
app pub date -
Aug 14, 2017
filing date -
Feb 12, 2016
priority date (Note) -
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Abstract
Method and apparatus for sharpening a cutting tool having a blade portion with a cutting edge, such as but not limited to a kitchen knife. In some embodiments, a powered sharpener has an abrasive medium that is advanced by a motor and an edge guide surface adjacent the abrasive medium, wherein the cutting edge of the cutting tool is sharpened by bringing a first portion of the cutting edge into contacting engagement with the edge guide surface and drawing a second portion of the cutting edge across the abrasive medium. A plurality of spaced apart channels are formed in the sharpened cutting edge by contactingly engaging the sharpened cutting edge with a cold forging member with sufficient force to displace portions of the sharpened cutting edge. The channels in the sharpened cutting edge constitute locally deformed, work hardened notches.
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