Hydraulic and earth engineering – Subterranean or submarine pipe or cable laying – retrieving,... – Submerging – raising – or manipulating line of pipe or cable...
Patent
1997-12-12
1999-11-23
Bagnell, David
Hydraulic and earth engineering
Subterranean or submarine pipe or cable laying, retrieving,...
Submerging, raising, or manipulating line of pipe or cable...
405158, 405174, 405181, 405164, 37409, 37410, F16L 112, E02F 376
Patent
active
059889489
ABSTRACT:
An underwater plough for ploughing an underwater bed, the plough comprising a first share (10) and a second share (21) which is movable with respect to the first share whereby the depth of the ploughing profile presented by the plough can be varied.
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J. Featherstone, "Protection of Surfave Laid and Build Submarine Telecom; Cable Against External Aggression", Disclosed Apr. 30, 1997.
"Cable Protection--Solution Through New Installation and Burial Apparatus" published in SupOptic '97 Conference Proceedings, May 12th-15th, 1997, San Francisco.
Cable and Wireless, "Vari-Plough--Principle 1", Apr. 8, 1997.
Cable and Wireless, "Vari-Plough--Principle 2", Apr. 8, 1997.
Bagnell David
Cable and Wireless PLC
Lee Jong-Suk
LandOfFree
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