Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
May 27, 2008
Patent Application Number
11033576
Date Filed
January 12, 2005
Patent Citations Received
Patent Primary Examiner
Patent abstract
A downhole drilling tool 136 comprises a drillstring 138, a drilling head 140, and a freewheel 144 for transferring drive from the drillstring to the drilling head. The freewheel 144 is positioned between the drillstring 138 and the drilling head 140.
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