Material or article handling – Well pipe or rod racking mechanism – With slope change
Reexamination Certificate
2005-11-29
2005-11-29
Walsh, Donald P (Department: 3653)
Material or article handling
Well pipe or rod racking mechanism
With slope change
C414S022570
Reexamination Certificate
active
06969223
ABSTRACT:
A pipe handling apparatus for transporting pipe between a position adjacent a pipe storage rack and a rig floor elevated above the pipe storage rack is provided. The pipe handling apparatus includes a support frame, substantially horizontally disposed platform supported by the support frame having a pipe receiving groove formed therein for receiving the joint of pipe, a carriage member, and a pusher member. The carriage member is movable from a lowered position wherein the joint of pipe which is positioned in the pipe receiving groove of the platform is supported in a substantially horizontal position and a raised position wherein the carriage member supports a first end of the joint of pipe at an elevated position relative to an opposed second end of the joint of pipe. The pusher member is movable along the pipe receiving groove between a retracted position and an extended position. In the retracted position, the pusher member is positioned near the second end of the pipe receiving groove to laterally support the joint of pipe when the first end of the joint of pipe is elevated relative to the second end. In the extended position, the pusher member is moved a selected distance away from the second end of the pipe receiving groove toward the first end of the pipe receiving groove so as to cause the second end of the joint of pipe to move through the pipe receiving groove towards the first end of the pipe receiving groove along a substantially horizontal plane and thereby cause the first end of the joint of pipe to be moved to a position overlying the rig floor.
REFERENCES:
patent: 3254776 (1966-06-01), Brown
patent: 3650339 (1972-03-01), Selfe et al.
patent: 3706347 (1972-12-01), Brown
patent: 3780883 (1973-12-01), Brown
patent: 3916500 (1975-11-01), Brown
patent: 4021978 (1977-05-01), Busse et al.
patent: 4053063 (1977-10-01), Harper, Jr.
patent: 4067453 (1978-01-01), Moller
patent: 4074792 (1978-02-01), Zaugg et al.
patent: 4235566 (1980-11-01), Beeman et al.
patent: 4366591 (1983-01-01), Zimmerman
patent: 4372420 (1983-02-01), White
patent: 4373420 (1983-02-01), Piesik
patent: 4386883 (1983-06-01), Hogan et al.
patent: 4403898 (1983-09-01), Thompson
patent: 4426182 (1984-01-01), Frias et al.
patent: 4453872 (1984-06-01), Frias et al.
patent: 4474520 (1984-10-01), Buckner et al.
patent: 4486137 (1984-12-01), Buckner
patent: 4552498 (1985-11-01), Dysarz
patent: 4828050 (1989-05-01), Hashimoto
patent: 4951759 (1990-08-01), Richardson
patent: 5127790 (1992-07-01), Teague
patent: 5183282 (1993-02-01), Smyly
patent: 5451129 (1995-09-01), Boyadjieff et al.
patent: 6079925 (2000-06-01), Morgan et al.
patent: 6227537 (2001-05-01), Schmid
patent: 6533519 (2003-03-01), Tolmon et al.
patent: 6719515 (2004-04-01), Tolmon et al.
Jones Ronald D.
Tolmon E. Kent
Dunlap Codding & Rogers P.C.
Hydra-Walk, Inc.
Shapiro Jeffrey A.
Walsh Donald P
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