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:
Oct. 16, 2012
Filed:
Jul. 21, 2006
Jean-francois Charvet-quemin, Valenciennes, FR;
Jean-pierre Emery, Maubeuge, FR;
Takahiro Hamamoto, Chuo-ku, JP;
Masaaki Sugino, Chuo-ku, JP;
Jean-Francois Charvet-Quemin, Valenciennes, FR;
Jean-Pierre Emery, Maubeuge, FR;
Takahiro Hamamoto, Chuo-ku, JP;
Masaaki Sugino, Chuo-ku, JP;
Vallourec Mannesmann Oil & Gas France, Aulnoye-Aymeries, FR;
Sumitomo Metal Industries, Ltd., Osaka-shi, JP;
Abstract
A liquid and gas tight threaded tubular connection includes a first axial abutment surface formed at the free end of an annular lip of a threaded male element and a second axial abutment surface formed at the end of a housing of a threaded female element. The first and second axial abutment surfaces have the same axial half-sections, the inclination of which varies progressively in the radial direction.