Material or article handling – Cylindrical bar handling device – Sequentially acting – diverse handling devices
Reexamination Certificate
2005-05-31
2005-05-31
Crawford, Gene O. (Department: 3651)
Material or article handling
Cylindrical bar handling device
Sequentially acting, diverse handling devices
C414S022610, C414S022650
Reexamination Certificate
active
06899510
ABSTRACT:
A pipe handling apparatus for raising and lowering pipe to and from a raised derrick work floor. The apparatus comprises a longitudinally-extending base, with a longitudinally-extending cavity therein. An elongate, longitudinally-extending boom member is provided, which is adapted for raising out of and nestable positioning in such cavity. The boom member has a longitudinally-extending trough therein on an upperside surface thereof, adapted to receive at least one section of pipe. At least one arm member is coupled to the boom member for raising a proximal end of such boom member. A pipe ejection assembly, integrated into said boom, is operable as the boom lowers into the cavity for the purpose of laterally ejecting pipe from the trough. The ejection assembly is adaptable for uni-directional or bi-directional ejection. Motive means are provided to permit powered movement of the ejector members when the boom is nested.
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Handley Richard Arnold
Klumpenhower Jason
Morelli Vince E.
Shiels Darren
Crawford Gene O.
Gowling Lafleur Henderson LLP
Horne D. Doak
Pipe Wranglers Canada (2004) Inc.
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