Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Joseph Ross Rials0
Delaney Michael Olstad0
Karsten Heidecke0
Raleigh Fisher0
Date of Patent
May 20, 2014
0Patent Application Number
134572550
Date Filed
April 26, 2012
0Patent Citations Received
Patent Primary Examiner
Patent abstract
In one embodiment, a top drive system includes a quill; a motor operable to rotate the quill; a gripper operable to engage a joint of casing; a connector bi-directionally rotationally coupled to the quill and the gripper and longitudinally coupled to the gripper; and a compensator longitudinally coupled to the quill and the connector. The compensator is operable to allow relative longitudinal movement between the connector and the quill.
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