Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
David R. Hall0
Jeff Jepson0
Ronald Crockett0
Date of Patent
April 8, 2008
0Patent Application Number
116682540
Date Filed
January 29, 2007
0Patent Citations Received
Patent Primary Examiner
Patent abstract
In one aspect of the invention, a tool has a wear-resistant base suitable for attachment to a driving mechanism and also a hard tip attached to an interfacial surface of the base. The tip has a first cemented metal carbide segment bonded to a superhard material at a non-planar interface. The tip has a height between 4 and 10 mm and also has a curved working surface opposite the interfacial surface. A volume of the superhard material is about 75% to 150% of a volume of the first cemented metal carbide segment.
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