Ramp trailer for oil field tubulars

Details Ramp trailer for oil field tubulars Ramp trailer for oil field tubulars

2005-04-12

2005-04-12

Walsh, Donald P. (Department: 3653)

Material or article handling

Well pipe or rod racking mechanism

With slope change

C414S022570, C414S022580, C414S022590, C414S022610, C414S022620

Reexamination Certificate

active

06877942

ABSTRACT:
The trailer is operative to carry tubulars (drill collars or drill pipe) to a service rig and raise them to the level of the rig floor so that the rig elevators can latch onto them and stand them up in the derrick. The trailer has a roller-equipped carriage operative to move along tracks supported by and extending lengthwise of the trailer frame. An elongate flat bed is pivotally mounted at its front end to the trailer frame. The bed's rear end can be raised by a scissor hoist connected between the carriage and the rear end of the bed. The bed has grooves extending lengthwise thereof in which the tubulars sit. Thus the trailer can be backed up to within a few feet from the well. The rear end of the bed can be raised and the carriage and bed can be advanced rearwardly to bring the rear ends of the tubulars within reach of the rig elevators.

REFERENCES:
patent: 4382632 (1983-05-01), Pitts
patent: 4684314 (1987-08-01), Luth
patent: 4842470 (1989-06-01), Hubbard
patent: 5248005 (1993-09-01), Mochizuki
patent: 6079925 (2000-06-01), Morgan et al.
patent: 6179065 (2001-01-01), Payne et al.
patent: 6227311 (2001-05-01), Osadchuck

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