Hydraulic and earth engineering – Subterranean or submarine pipe or cable laying – retrieving,... – Submerging – raising – or manipulating line of pipe or cable...
Reexamination Certificate
2005-09-05
2011-10-18
Bagnell, David (Department: 3672)
Hydraulic and earth engineering
Subterranean or submarine pipe or cable laying, retrieving,...
Submerging, raising, or manipulating line of pipe or cable...
C405S158000, C405S170000, C226S147000, C226S163000
Reexamination Certificate
active
08038367
ABSTRACT:
A pipe-laying apparatus and method for laying or raising a pipeline from a vessel. The apparatus includes a first pipe gripping assembly disposed on a pipe laying path along which pipeline passes during laying, a second pipe gripping assembly disposed on the 10 pipe-laying path, and a drive unit for causing relative movement in a direction along the pipe-laying path between the first pipe gripping assembly and the second pipe gripping assembly. The first pipe gripping assembly includes both a pipe gripping arrangement for gripping a pipe during pipe-laying and a cable gripping arrangement for gripping a cable during an operation when a cable is connected to a length of pipeline.
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International Search Report dated Nov. 25, 2005.
Written Opinion of the International Searching Authority.
Giovannini Umberto
Signaroldi Teresio
Andrish Sean
Bagnell David
Buchanan & Ingersoll & Rooney PC
Saipem S.p.A.
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