Automatic pipe elevator

Details Automatic pipe elevator Automatic pipe elevator

1985-03-15

1987-03-17

Marbert, James B.

Handling: hand and hoist-line implements

Grapple

Pivoted jaws

294116, B25J 1500

Patent

active

046502360

ABSTRACT:
An elevator for drill pipe which includes at least two jaws for supporting a length of pipe and structure for maintaining the jaws in clamping engagement with the pipe. The structure includes linkage means coupled to the jaws for maintaining the jaws clamped to the pipe when the elevator and pipe are urged apart by gravity due to the weight of the pipe as when the pipe is raised or otherwise supported by the elevator. Additionally or alternatively, the elevator includes a pressure actuator assembly connected to the jaws for applying a positive force against the jaws for maintaining the jaws clamped to the pipe independent of the effect of gravity and, thus, independent of the orientation of the elevator.

REFERENCES:
patent: Re26284 (1967-10-01), O'Neill et al.
patent: 3257144 (1966-06-01), Gardner
patent: 4013178 (1977-03-01), Brown et al.
patent: 4017112 (1977-04-01), Delest
patent: 4303270 (1981-12-01), Adair
patent: 4314611 (1982-02-01), Willis
patent: 4522439 (1985-06-01), Haney

Affiliated with

Also associated with

Rating

Automatic pipe elevator does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Automatic pipe elevator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Automatic pipe elevator will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1784276