Method for tightly jointing a sleeve to a submarine pipe laid at

Details Method for tightly jointing a sleeve to a submarine pipe laid at Method for tightly jointing a sleeve to a submarine pipe laid at

1985-03-13

1986-06-10

Rosenbaum, Mark

Metal working

Method of mechanical manufacture

Assembling or joining

29446, 2940208, 72 58, 138147, 138172, 2853825, B21D 3908

Patent

active

045934487

ABSTRACT:
Method for tightly jointing a sleeve to a submarine pipe laid on a very deep sea-bottom, characterized by the preliminary stages of providing a series of grooves on the inside surface of the sleeve, and of filling each one of said grooves with two half-rings made of a material collapsible under high pressures up to a 70% variation of its volume. A type of such a material is moreover described.

REFERENCES:
patent: 1994210 (1976-12-01), Chobert
patent: 2468488 (1949-04-01), Coyle et al.
patent: 2832503 (1958-04-01), Boumann
patent: 3997193 (1976-12-01), Tsuda et al.

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