Joints and connections – Distinct end coupler – Continuous thread
Patent
1994-01-14
1996-01-16
Reese, Randolph A.
Joints and connections
Distinct end coupler
Continuous thread
403369, 403370, 166 7751, 166 781, 192 45, 269199, 269200, 269232, 269233, 269234, E21B 1710
Patent
active
054842220
ABSTRACT:
An apparatus for gripping a pipe, which apparatus comprises an outer member having a first inclined inner surface, and an inner member having a first inclined outer surface, the arrangement being such that, in use, on rotation of said outer member relative to said inner member in one sense said first inclined inner surface co-operates with said first inclined outer surface so that said inner member moves towards a pipe to be gripped.
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McClung Guy
Novosad Christopher J.
Reese Randolph A.
Weatherford / Lamb, Inc.
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