The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 03, 2010
Filed:
Apr. 27, 2007
Applicants:
Harald Syse, Røyneberg, NO;
Jostein Aleksandersen, Randaberg, NO;
Inventors:
Harald Syse, Røyneberg, NO;
Jostein Aleksandersen, Randaberg, NO;
Assignee:
TDW Offshore Services AS, Stavanger, NO;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16L 55/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
A plug for use during a pipeline laying operation for sealing off sections of the pipeline in case of water ingress. A sealing and gripping assembly is formed of slip segments around a partially conical shaped surface, the slip segments being moved by a piston/cylinder arrangement. A valve connected to a pressure vessel actuates the piston/cylinder in response to the detection of conductivity of fluid around the plug.