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.

Date of Patent:
Aug. 23, 2022

Filed:

Dec. 17, 2021
Applicant:

Hydril Company, Houston, TX (US);

Inventors:

Alejandro Juarez, Cypress, TX (US);

Nishikant V Raje, Houston, TX (US);

Assignee:

HYDRIL COMPANY, Houston, TX (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 17/042 (2006.01); F16L 15/06 (2006.01); E21B 17/08 (2006.01); F16L 15/00 (2006.01);
U.S. Cl.
CPC ...
E21B 17/0423 (2013.01); E21B 17/08 (2013.01); F16L 15/002 (2013.01); F16L 15/06 (2013.01); Y10T 29/49881 (2015.01);
Abstract

A sealing system connecting first and second tubular members includes a first curvilinear sealing surface on the first tubular member and a second curvilinear sealing surface on the second tubular member. Both the first and second curvilinear sealing surfaces are disposed between two sets of threading on the respective first and second tubular members. When the first and second tubular members are in a connected configuration, the first and second curvilinear sealing surfaces contact and interfere to form an annular curvilinear center seal. A relief pocket may be disposed adjacent to the first and/or second curvilinear sealing surfaces to contain excess lubricant between the first and second tubular members.


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