Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Daniel D. Friel, Sr.0
Date of Patent
November 18, 2008
0Patent Application Number
120311430
Date Filed
February 14, 2008
0Patent Primary Examiner
Patent abstract
Various forms of knife guides are provided for knife sharpeners to minimize damage to the knife blade. One of the forms of knife guides comprises non-contact optical arrangements which includes a light source, at least one light detector and an indicator that monitors and displays the intensity of light reflected from the blade surface.
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