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:
Apr. 10, 2012
Filed:
Mar. 04, 2004
Eric Verger, Gommegnies, FR;
Laurent Dubedout, Valenciennes, FR;
Benoît Duquesne, Valenciennes, FR;
Andréi G Filippov, Rijswijk, NL;
Scott a Benzie, Rijswijk, NL;
Eric Verger, Gommegnies, FR;
Laurent Dubedout, Valenciennes, FR;
Benoît Duquesne, Valenciennes, FR;
Andréi G Filippov, Rijswijk, NL;
Scott A Benzie, Rijswijk, NL;
Vallourec Mannesmann Oil & Gas France, Aulnoye-Aymeries, FR;
Abstract
To produce a sealing contact between male and female threaded elements, a contact zone is provided, located between male and female threading portions separated from each other in an axial direction. The male and female elements have respective cylindrical portions that extend over the entire length of the contact zone. After expansion, a sealing contact is established between surfaces in two annular areas by a radial interference fit.