Hydraulic and earth engineering – Subterranean or submarine pipe or cable laying – retrieving,... – Submerging – raising – or manipulating line of pipe or cable...
Patent
1996-03-08
1998-10-20
Graysay, Tamara L.
Hydraulic and earth engineering
Subterranean or submarine pipe or cable laying, retrieving,...
Submerging, raising, or manipulating line of pipe or cable...
405166, 405158, F16L 112
Patent
active
058237127
ABSTRACT:
A method for laying a pipeline on a surface located under water such as a deep sea bed. The pipeline is held fixedly by tensioners having tensioning elements each extending between a clamping member engaging on the pipeline and a support member connected to a vessel. Tensioning is accomplished by sets of endless clamping bands which apply a braking action to the pipeline. A set of clamping jaws is clamped fixedly to the pipeline and moves along with the pipeline from a starting position to a releasing position. As a set of clamping jaws is clamped to the pipeline, another set of clamping jaws is released from the pipeline and returned to a starting position to continually repeat the cycle of holding and releasing of the pipeline.
REFERENCES:
patent: 3491541 (1970-01-01), Berard
patent: 3739971 (1973-06-01), Silvestri et al.
patent: 3975919 (1976-08-01), Harrison
patent: 5044825 (1991-09-01), Kaldenbach
patent: 5413434 (1995-05-01), Stenfert et al.
de Groot Anne Klaas
Kalkman Piet
Roodenburg Joop
Allseas Group S.A.
Graysay Tamara L.
Lagman Frederick L.
Zovko Mark
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