Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Craig R. Bruns0
Mark S. Fernwood0
Thomas S. Blake0
Date of Patent
July 3, 2007
Patent Application Number
10929153
Date Filed
August 27, 2004
Patent Citations Received
Patent Primary Examiner
Patent abstract
A hand-holdable apparatus useful for abrading a surface is provided. The invention is particularly useful for dental applications using a stream of abrasive particles suspended in a gas stream to abrade the surface of a tooth. The apparatus of the invention may be modified to easily minimize “bleed down” of the gas/abrasive stream using a pinch valve and to remove worn flexible conduits for routine maintenance and autoclaving of the apparatus. The apparatus of the invention also provides a novel pick-up assembly for delivery of abrasive particles.
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