Method and apparatus for remotely attaching a riser pipe to an o

Details Method and apparatus for remotely attaching a riser pipe to an o Method and apparatus for remotely attaching a riser pipe to an o

1977-01-03

1978-09-26

Shapiro, Jacob

Hydraulic and earth engineering

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

Submerging, raising, or manipulating line of pipe or cable...

24249LS, 81 572, 81 573, 269239, F16L 4100

Patent

active

041160150

ABSTRACT:
A method and apparatus for attaching by remote control a riser pipe to an offshore structure. The method includes installing one or more remotely operable pre-aligned jawed clamps upon the structure, suspending the riser pipe vertically over the side of the structure, guiding the pipe to a position between the open jaws of the clamps, and remotely closing the jaws about the riser pipe. The apparatus includes an arcuate seat rigidly attachable to the structure, a pair of arcuate jaws hingedly attached to the seat, and remotely controlled hydraulic piston and cylinder assemblies to move the jaws between an open position to receive the pipe and a closed position to hold the pipe.

REFERENCES:
patent: 2985455 (1971-05-01), Powell
patent: 3557564 (1971-01-01), Hauber
patent: 3799010 (1974-03-01), Guier
patent: 4014180 (1977-03-01), Kelly et al.

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