Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Robert Folk0
Adrian Lachance0
Date of Patent
January 4, 2011
0Patent Application Number
115628620
Date Filed
November 22, 2006
0Patent Primary Examiner
Patent abstract
A winch includes an electric motor having a fixed stator, and a cylindrical rotor which rotates about the stator. A drum is affixed to the rotor and carries the cable which is wound or unwound by the winch. The winch may be a drawworks for an oil and gas rig.
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