Apparatus for underwater welding of pipes

Hydraulic and earth engineering – Subterranean or submarine pipe or cable laying – retrieving,... – Submerging – raising – or manipulating line of pipe or cable...

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Details

219 72, 405189, B63C 1100

Patent

active

041711750

ABSTRACT:
A system for welding the ends of submerged pipes in a gaseous atmosphere at any depth comprises isolating the ends of the pipes by introducing obturators therein and then introducing the pipe ends into an open topped receptacle which is capped with an underwater personal carrying intervention unit. The closed receptacle is filled with gas and then a sleeve is positioned between the ends of the pipes and welded to the pipes.

REFERENCES:
patent: 3339011 (1967-08-01), Ewers
patent: 3407611 (1968-10-01), Coultrup
patent: 3641777 (1972-02-01), Banfauich
patent: 3658231 (1972-04-01), Gilman
patent: 3795115 (1974-03-01), Bergquist

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