Height-adjustable pipe pick-up and laydown machine

Details Height-adjustable pipe pick-up and laydown machine Height-adjustable pipe pick-up and laydown machine

2008-07-29

2008-07-29

Rodriguez, Saul J. (Department: 3652)

Material or article handling

Well pipe or rod racking mechanism

With slope change

Reexamination Certificate

active

07404697

ABSTRACT:
The present invention provides a pipe-handling machine (100) for picking up and laying down pipe, such as at a rig site. The machine first comprises three elongated and nested truss members. First, a trestle (200) is provided; second, a trough carrier (300) is received within the trestle; and third, a trough (400) is slidably received within the trough carrier. The machine next comprises an inclined ramp (500). A lower end of the ramp is pivotally connected to the trestle, while an upper end of the ramp extends upward to the rig floor. The length of the ramp is adjustable to accommodate rig floors of varying heights. A trestle transport mechanism (550) selectively moves a front end of the trestle upwards along the ramp, thereby delivering a joint of pipe to the rig floor. The trough may optionally be moved along the trough carrier and out over the rig floor to aid in delivery. Features (310) may optionally be incorporated to reduce the angle of approach of the joint of pipe relative to the rig floor after the trestle transport mechanism is actuated.

REFERENCES:
patent: 4067453 (1978-01-01), Moller
patent: 4235566 (1980-11-01), Beeman et al.
patent: 4386883 (1983-06-01), Hogan et al.
patent: 4403898 (1983-09-01), Thompson
patent: 4684314 (1987-08-01), Luth
patent: 5137114 (1992-08-01), Yde et al.
patent: 5511267 (1996-04-01), Alexander
patent: 6079925 (2000-06-01), Morgan et al.
PCT International Search Report dated Oct. 6, 2003 based on PCT/US03/13767.

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