Pipe lifting apparatus and method
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United States of America Patent
Stats
-
May 27, 2003
Grant Date -
Sep 26, 2002
app pub date -
Mar 22, 2001
filing date -
Mar 22, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A pipe lifting apparatus and method utilizes gripper arms (A) having upwardly diverging links (B) pivotally connected to an upwardly extending operator member (C) for receiving a lifting attachment and for moving a stirrup (D) from side to side to lock and unlock stops (E) for fixing the gripper arms and in unlocked position for a next pipe lifting operation. Auxiliary gripping members (F) are provided in opposed relation on each of the gripper arms for adjusting the effective gripping action afforded by the gripping arms to accommodate multiple size pipes.
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