US Patent 6920926 Top drive well casing system
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Patent abstract
A well casing system is disclosed for the handling and make-up of casing on a drilling rig in conjunction with a top drive is disclosed. The system comprises a top drive, a casing make-up assembly, links, link tilts, and transfer and lifting elevators. The operator can remotely manipulate the elevators to pick up and position a joint of casing above the casing already secured in the drilling hole. The operator can then engage the gripper head and use the rotational capability of the top drive to remotely couple the two joints of casing together.
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Patent Inventor Names
Allan S. Richardson0
Beat Kuttel0
Lemuel T. York0
Date of Patent
July 26, 2005
0Patent Application Number
107589750
Date Filed
January 16, 2004
0Patent Primary Examiner
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US Patent 6920926 Top drive well casing system
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