Apparatus for bulkhead buoyancy and pipe differential pressure

Details Apparatus for bulkhead buoyancy and pipe differential pressure Apparatus for bulkhead buoyancy and pipe differential pressure

1991-04-01

1993-02-09

Reese, Randolph A.

Hydraulic and earth engineering

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

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

405158, 73 405R, 73 491, 138 90, G01M 328

Patent

active

051849216

ABSTRACT:
A pipeline test bulkhead that can be neutrally buoyant under water for ease of transport under water is disclosed. The bulkhead is manually transportable under water without a crane regardless of the dry weight of the bulkhead out of the water and necessary for ease of transport under water in order to test each section of a pipe as it is attached during the construction of a pipeline under water.

REFERENCES:
patent: 1841974 (1932-01-01), Naylor
patent: 2526172 (1950-10-01), Sunde
patent: 3978678 (1976-09-01), Duncan et al.
patent: 4011620 (1977-03-01), Southgate
patent: 4344319 (1982-08-01), Hancock et al.

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