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:
Mar. 28, 2017
Filed:
Nov. 03, 2008
Sylvain Beigneux, Valenciennes, FR;
Daly Daly, Valenciennes, FR;
Bertrand Maillon, Valenciennes, FR;
Claire Patureau, Hesingue, FR;
Eric Verger, Gommegnies, FR;
Michihiko Iwamoto, Wakayama, JP;
Keiichi Nakamura, Wakayama, JP;
Masaaki Sugino, Nishinomiya, JP;
Suguru Yamaguchi, Amagasaki, JP;
Sylvain Beigneux, Valenciennes, FR;
Daly Daly, Valenciennes, FR;
Bertrand Maillon, Valenciennes, FR;
Claire Patureau, Hesingue, FR;
Eric Verger, Gommegnies, FR;
Michihiko Iwamoto, Wakayama, JP;
Keiichi Nakamura, Wakayama, JP;
Masaaki Sugino, Nishinomiya, JP;
Suguru Yamaguchi, Amagasaki, JP;
VALLOUREC OIL AND GAS FRANCE, Aulnoye-Aymeries, FR;
NIPPON STEEL & SUMITOMO METAL CORPORATION, Chiyoda-ku, JP;
Abstract
A threaded tubular connection includes a female threaded portion at a first tubular component end and a male threaded portion at a second tubular component end, the female threaded portion including a female thread, at least one female sealing surface on its inner peripheral surface, and at least one female axial abutment surface, the male threaded portion including a male thread, at least one male sealing surface on its outer peripheral surface, at least one axial abutment surface, and a lip disposed between the sealing surface and an axial abutment surface located at a free end of the threaded portion distant from the thread, the male thread being made up into the female thread such that at least one male axial abutment surface is in contact with at least one female axial abutment surface, at least one male sealing surface being in interference contact with at least one corresponding female sealing surface, the portion of the lip between the sealing surface and the axial abutment surface being radially distant from a corresponding surface of the other threaded portion, at least one leak channel being provided in one of the threaded portions to place the chamber formed between the lip and the corresponding surface of the other threaded portion in communication with the interior of the connection.