Process and device for replacing an underground pipe

Details Process and device for replacing an underground pipe Process and device for replacing an underground pipe

1991-01-24

1993-05-04

Taylor, Dennis L.

Hydraulic and earth engineering

Subterranean or submarine pipe or cable laying, retrieving,...

With forming or cutting of pipe or cable

405174, 405184, E02D 2910

Patent

active

052075338

ABSTRACT:
In order to replace a first underground pipe such as a metal pipe by a second pipe of mean diameter substantially equal to or greater than that of the first pipe, the first pipe is cut longitudinally by a localized projection of a flow of matter, particles or radiation thanks to a localized projection means which are displaced inside the first pipe in order to divide the first pipe longitudinally into at least two segments. Cutting by localized projection avoids in particular the creation of vibrations during fragmentation of the pipe to be replaced.

REFERENCES:
patent: 3181302 (1965-05-01), Lindsay
patent: 3711076 (1973-01-01), Goetz
patent: 4134453 (1979-01-01), Love et al.
patent: 4723873 (1988-02-01), Masznyik
patent: 4732222 (1988-03-01), Schmidt
patent: 4767236 (1988-08-01), Rice
patent: 4787463 (1988-11-01), Geller et al.

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