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:
Nov. 24, 2020
Filed:
Nov. 24, 2010
Gaston Mazzaferro, Buenos Aires, AR;
Gabriel E. Carcagno, Buenos Aires, AR;
Tatsuo Ono, Buenos Aires, AR;
Nestor J. Santi, Buenos Aires, AR;
Gaston Mazzaferro, Buenos Aires, AR;
Gabriel E. Carcagno, Buenos Aires, AR;
Tatsuo Ono, Buenos Aires, AR;
Nestor J. Santi, Buenos Aires, AR;
TENARIS CONNECTIONS B.V., Amsterdam, NL;
Abstract
A threaded joint for joining tubes used especially in the field of OCTG (Oil Country Tubular Goods), such as pipes in gas or oil production and/or casings when drilling wells can include a pin and a coupling, or box, having an end surface not facing against any surface of the pin when the joint is made-up. Following make-up of the joint, first sealing surfaces of the pin and box mate to form an internal metal-to-metal seal, and second sealing surfaces of the pin and box mate to form an external metal-to-metal seal, where the internal and external seals are defined by contact between one toroidal surface and one frusto-conical surface.