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:
Jul. 16, 2024
Filed:
Jan. 20, 2023
Tdw Delaware, Inc., Wilmington, DE (US);
Rafal Sulwinski, Sandnes, NO;
Khanh Van Nguyen, Sandnes, NO;
Cody A. Parsley, Tulsa, OK (US);
Kurt Steinsvik, Sandnes, NO;
TDW Delaware, Inc., Wilmington, DE (US);
Abstract
Pipeline isolation tool for sealing extrusion gaps of up to about 20% or greater includes a pair of fenced barriers () having overlapping segments () for restraining a seal (). The segments expand to a pipe wall before the seal to prevent transition of seal medium over the segments and form a support wall for the seal. The support wall may include a protection ring (). Springs () surround each fenced barrier for returning the support system to a relaxed position. Inner rings () are provided on sealing element facing surfaces () of the fenced barrier for supporting the segments. The inner rings define a smooth inner guiding surface () for the seal. The guiding surface is tilted inwardly towards the seal for resisting the sealing element during expansion and for preventing an inside diameter of the seal from expanding outwardly when compressed.