Hydraulic and earth engineering – Subterranean or submarine pipe or cable laying – retrieving,... – Submerging – raising – or manipulating line of pipe or cable...
Patent
1979-06-26
1982-08-24
Corbin, David H.
Hydraulic and earth engineering
Subterranean or submarine pipe or cable laying, retrieving,...
Submerging, raising, or manipulating line of pipe or cable...
405155, 405170, 405192, 405179, F16L 104
Patent
active
043458548
ABSTRACT:
Underwater pipelines connected to at least one point on a coastline are constructed by means of a pipelaying vessel associated with an independent underwater vehicle mounted on caterpillar-tracks and capable of traveling along the sea bed. From within the vehicle, pipe sections can be assembled and rejected as the vehicle moves forward. The pipe sections pass through a wall of the vehicle and into the sea, through a port which is provided with a plurality of inflatable annular sealing rings that selectively sealingly bear against the exterior of the pipeline. One of these sealing rings is associated with an annular piston, and a jack acts between this piston and the vehicle to provide the propulsive force for ejecting the pipe sections from the vehicle. Potential applications include mining operations, off-shore installations and intercontinental tunnels.
REFERENCES:
patent: 3393524 (1968-07-01), Terrell
patent: 3514962 (1970-06-01), Poole
patent: 3785160 (1974-01-01), Banjavich et al.
patent: 3860270 (1975-01-01), Arnold
patent: 3975784 (1976-08-01), Whitaker
Corbin David H.
Techniques Industrielles et Minieres
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