Handling: hand and hoist-line implements – Grapple
Reexamination Certificate
2011-03-15
2011-03-15
Kramer, Dean J (Department: 3652)
Handling: hand and hoist-line implements
Grapple
C294S082350, C294S103100
Reexamination Certificate
active
07905529
ABSTRACT:
A lifting tool (10) is provided for supporting an oilfield riser during relocation by a crane having a support line (14). The tool body (12) has an inverted U-shaped configuration with a central opening (18) and a downwardly facing throat (20). A powered drive (26) rotates the arcuate member between the open position and the closed position.
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Klatt E. Martin
Mullins Donald E.
Reed H. Wade
Browning & Bushman P.C.
Hannon Hydraulics GP, LLC
Kramer Dean J
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