Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
David C. Shafer0
Jean-Pierre Krauer0
Date of Patent
February 15, 2011
0Patent Application Number
127309210
Date Filed
March 24, 2010
0Patent Citations Received
Patent Primary Examiner
Patent abstract
A capacitive sensing system for use with a power cutting tool of the type which has an exposed, moveable blade adjacent a work surface is disclosed. The sensing system drives an excitation voltage onto the exposed blade and monitors the current drawn from the blade, detects changes in the amplitude and phase and analyzes the characteristics of the changes to selectively trigger a reaction system.
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