Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Prabhakaran K. Centala0
Peter Thomas Cariveau0
Zhehua Zhang0
Date of Patent
February 21, 2017
0Patent Application Number
112324340
Date Filed
September 21, 2005
0Patent Citations Received
Patent Primary Examiner
Patent abstract
The invention provides an improved drill bit and a method for designing thereof. The drill bit includes a bit body, a journal depending from the bit body, and a disc rotatably mounted on the journal. The disc of the drill bit has PDC cutting elements disposed on it. Also provided is an improved cutting structure for the discs of the drill bit. The cutting structure includes a portion that is comprised from PDC.
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