Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Amardeep Singh0
Date of Patent
January 22, 2008
Patent Application Number
11184719
Date Filed
July 19, 2005
Patent Citations Received
Patent Primary Examiner
Patent abstract
A roller cone drill bit and a method for designing thereof. The roller cone drill bit includes a bit body configured to be coupled to a drill string and a journal depending from the bit body. A split roller cone is rotatably attached to the journal. The split roller cone includes an upper section and a lower section. The upper section has a plurality of cutting elements disposed at selected positions thereon. The lower section has a plurality of cutting elements disposed at selected positions thereon. The lower section is able to rotate independently of the upper section.
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