Dual string elevators
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United States of America Patent
Stats
-
Oct 19, 1982
Grant Date -
N/A
app pub date -
Jun 2, 1980
filing date -
Jun 2, 1980
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A dual string elevator having a body with a pair of tapered bowls extending vertically therethrough, lifting projections extending outward from the body in positions aligned with the bowls to prevent bending of a string supported in one of the bowls, a set of gripping slips for each bowl, an actuator for each set of gripping slips, each actuator being mounted in a recess in the body aligned with and spaced outward from the bowls and pivotal links for connecting the actuators to their set of gripping slips whereby the slips are moved out of the bowls and lowered into the bowls into pipe gripping position responsive to the movement of the actuators.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
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