Hydraulic and earth engineering – Subterranean or submarine pipe or cable laying – retrieving,... – Submerging – raising – or manipulating line of pipe or cable...
Patent
1989-01-19
1991-01-22
Taylor, Dennis L.
Hydraulic and earth engineering
Subterranean or submarine pipe or cable laying, retrieving,...
Submerging, raising, or manipulating line of pipe or cable...
405158, 405163, F16L 104
Patent
active
049866974
ABSTRACT:
A method and apparatus for simultaneously digging a trench in the bottom of a body of water and laying a pipe from a barge therein. The plow is provided with vertical side plates to assist in molding the side of the cut trench so an inclined ramp can move the soil upwardly where it is diverted to each side of the trench. The pipe being laid is extended from a working barge through a hiatus at the aft end of the trenching device. The position of the pipe in the hiatus is monitored and that information is used to properly position the barge with respect to the trenching machine. In one embodiment a gas/oil spring supports the lower horizontal roller at the bottom of the hiatus.
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patent: 4744696 (1988-05-01), Vidler
Lyntech Corporation
Taylor Dennis L.
LandOfFree
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