Manual sharpener
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United States of America Patent
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May 16, 2017
Grant Date -
Jul 21, 2016
app pub date -
Jan 7, 2016
filing date -
Jan 16, 2015
priority date (Note) -
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Abstract
A manual sharpener includes at least one pre-sharpening stage having interdigitating comb-like abrasive sharpening structure. The sharpener also includes a finishing stage having a pair of abrasive surfaced truncated conical disks as its sharpening structure. The disks are mounted on a rotatable shaft with the small ends of the disks in contact with each other.
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