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, 2013
Filed:
Dec. 28, 2009
Claire Patureau, Hesingue, FR;
Olivier Tartar, Paris, FR;
Claire Patureau, Hesingue, FR;
Olivier Tartar, Paris, FR;
Vallourec Mannesmann Oil & Gas France, Aulnoye-Aymeries, FR;
Sumitomo Metal Industries, Ltd., Osaka-shi, JP;
Abstract
A sealed threaded connection with a male end and a female end, the male end having a sealing surface and finishing in a terminal surface orientated transversely to the axis of the connection. The female end has a threaded zones inclined in accordance with a conical generatrix forming an angle of taper alpha; with the axis of the connection, sealing surface being cooperating with the sealing surface of the male end along a radially interfering contact zone, and finishing in a terminal surface which is transversely orientated, the tangent at the contact zone of the sealing surface being inclined along a line forming an angle beta; with the axis of the threaded connection, wherein the inclination defined by the conical generatrix relative to the threaded zones is in a direction opposite to the inclination defined by the tangent at the contact zone of the sealing surface.