Suspension of adjustable pipe spinner

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 4478111
SERIAL NO

06376745

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A well pipe spinner includes two body parts carrying rollers and mounted by two pivotal connections for swinging movement between a closed position in which the rollers grip and drive a well pipe and an open position releasing the pipe. A structure extends between and interconnects the two pivotal connections in a relation permitting relative adjustment of their pivotal axes toward and away from one another for gripping different sizes of pipe. The tool is supported by a structure which is adapted to be suspended from a line or other element and which suspends the two body parts and pivotal connections at essentially the locations of the two pivotal axes.

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Patent Owner(s)

Patent OwnerAddress
VARCO INTERNATIONAL INC A CA CORP800 NORTH ECKHOFF STREET ORANGE CA 95668

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fox, Preston R Fountain Valley, CA 10 171
Gill, Jerry A Spring, TX 2 13
Kamenster, Boris Fountain Valley, CA 1 5
Wells, Lawrence E Anaheim, CA 17 219

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