Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
David R. Hall0
Jeff Jepson0
Ronald Crockett0
Date of Patent
August 19, 2008
0Patent Application Number
114639620
Date Filed
August 11, 2006
0Patent Citations Received
Patent Primary Examiner
Patent abstract
In one aspect of the invention, a degradation assembly has an attack tool with a body and a shank, the body having a wear-resistant tip. The shank is disposed within a bore of a holder secured to a driving mechanism. A washer is positioned in-between the attack tool and the holder and fitted around the shank of the attack tool, wherein an outer edge of the washer has a hardness greater than 58 HRc.
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