Pincer mechanism for pipelines

Details Pincer mechanism for pipelines Pincer mechanism for pipelines

1977-09-15

1978-12-26

Larson, Lowell A.

Metal deforming

With means to drive tool

Including link-actuated tool support

7245303, B21D 706

Patent

active

RE0298697

ABSTRACT:
Pipe pincer mechanism for connection to and disconnection from a machine such as a back hoe for rapid shut down of a pipeline that has developed a break or leak. After the leak has been located and a hole or trench excavated to expose the break, the pincer mechanism is attached to the back hoe boom and one of the machine's hydraulic cylinders and then is used to crimp the pipe on both sides of the leak to shut off the escape of gas or liquid through the break.

REFERENCES:
patent: 2461034 (1949-02-01), Castle
patent: 2858537 (1958-11-01), Cootes
patent: 3260098 (1966-07-01), Gill
patent: 3263465 (1966-08-01), Way
patent: 3730478 (1973-05-01), Burke

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