Clamp apparatus for threadedly connected tubulars

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 8448320
APP PUB NO 20100283241A1
SERIAL NO

12842206

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Abstract

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A clamp for clamping to two tubulars, each of the two tubulars including a component of a top drive system, the two tubulars threadedly connected together, the clamp for inhibiting relative rotation of the two tubulars, each of the two tubulars having at least one tubular projection projecting therefrom, the clamp including a clamp body having an interior surface, a plurality of clamp projections projecting inwardly from the interior surface of the clamp body for holding the at least one tubular projection projecting from each of the two tubulars.

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Patent Owner(s)

Patent OwnerAddress
VARCO I/P INC2835 HOLMES ROAD HOUSTON TX 77051

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ervin, Howard Spring, US 4 28
Swiontek, Cliff Brea, US 4 64
Wells, Lawrence E Yorba Linda, US 17 161
West, Neil Edward Corona, US 9 110
Yater, Ronald W Houston, US 4 9

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