Pipe gripping device
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United States of America Patent
Stats
-
Mar 13, 2001
Grant Date -
N/A
app pub date -
Sep 21, 1998
filing date -
Oct 21, 1997
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A pipe gripping device is taught which is useful for moving pipe into and/or out of a well. The pipe gripping device includes a first set of slips for holding a pipe in a pipe light condition and a second set of slips for holding a pipe in a pipe heavy condition. The second set of slips are actuatable independently from the first set of slips. The pipe gripping device can include a slip moving system which prevents the slip carrier blocks from being driven outwardly against the housing, to thereby prevent the carrier blocks from locking, by being driven against the housing.
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