Wells – Above ground apparatus – With tube rotating means
Patent
1993-10-20
1995-03-14
Buiz, Michael Powell
Wells
Above ground apparatus
With tube rotating means
175195, E21B 300
Patent
active
053969529
ABSTRACT:
A kelly spinner for a drilling rig and installation method are disclosed. The spinner is installed directly to a stem of the derrick swivel by means of an adjustable sleeve which fits around the swivel stem. A clamping device is tightened to secure the sleeve to the stem and the clamp to the sleeve. A ring gear bolted to the clamp body is rotated by dual hydraulic or pneumatic motors to rotate the spinner.
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Kelly Spinner Assembly and Installation Literature and Drawings, International Tool Company, Inc., Three (3) pages, 1962-1967.
Buiz Michael Powell
Lundeen Daniel N.
Pryzant Andrew S.
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