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:
Feb. 11, 2003
Filed:
Feb. 09, 2001
Applicant:
Inventors:
Martin Donnelly, Amsterdam, NL;
Wilhelmus Christianus Maria Lohbeck, Rijswijk, NL;
Robert Bruce Stewart, Rijswijk, NL;
Assignee:
Shell Oil Company, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23P 1/102 ; E21B 2/900 ; F16L 5/518 ;
U.S. Cl.
CPC ...
B23P 1/102 ; E21B 2/900 ; F16L 5/518 ;
Abstract
A scrolled resilient sheet is installed against the inner surface of a fluid conduit using a carrier tool from which a resilient sheet having an average thickness more than 2 mm and an elastic or pseudoelastic recoverable strain of at least 0.6% is released so that the sheet expands with an expansion force which is sufficiently high to allow the sheet to press itself into place alongside the inner surface of the conduit and to remain in place after installation.