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.

Date of Patent:
Nov. 20, 2007

Filed:

Jun. 08, 2006
Applicants:

Rune Freyer, Stavanger, NO;

Laurence Abney, Sandnes, NO;

Steve Arrington, Duncan, OK (US);

Inventors:

Rune Freyer, Stavanger, NO;

Laurence Abney, Sandnes, NO;

Steve Arrington, Duncan, OK (US);

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F16L 55/16 (2006.01);
U.S. Cl.
CPC ...
Abstract

A method of performing a servicing operation within a pipeline comprises positioning a swellable component about at a desired location within a pipeline, exposing the swellable component to a swelling agent within the pipeline, expanding the swellable component into sealing engagement with the pipeline, thereby forming a seal across the pipeline, and opening a fluid pathway through the pipeline without removing the swellable component. Another method of performing a servicing operation within a pipeline comprises inserting into the pipeline a pipeline tool comprising an externally mounted swellable component, propelling the pipeline tool through the pipeline to about a desired location via a flow of fluid, expanding the swellable component into sealing engagement with the pipeline at about the desired location, and opening a flow path through the pipeline tool.


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