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:
Sep. 12, 2023

Filed:

Jul. 20, 2021
Applicants:

Saudi Arabian Oil Company, Dhahran, SA;

Twi Ltd., Cambridge, GB;

Inventors:

Abderrazak Traidia, Lussan, FR;

Abdullah Al Shahrani, Dammam, SA;

Chris Worrall, Cambridge, GB;

Farshad Salamat-Zadeh, Cambridge, GB;

Waleed Al Nasser, Ad Dammam, SA;

Assignees:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C 65/06 (2006.01); F16L 47/02 (2006.01); B29C 65/00 (2006.01); F16L 47/16 (2006.01); B29K 105/06 (2006.01); B29L 23/00 (2006.01);
U.S. Cl.
CPC ...
F16L 47/02 (2013.01); B29C 65/0672 (2013.01); B29C 66/5221 (2013.01); B29C 66/71 (2013.01); B29C 66/73921 (2013.01); F16L 47/16 (2013.01); B29K 2105/06 (2013.01); B29L 2023/22 (2013.01);
Abstract

A system for coupling pipes includes a first pipe having a tapered, spigot end; a second pipe having a tapered, spigot end; and a coupler having two tapered socket ends adapted to internally receive the respective tapered, spigot ends of the first pipe and the second pipe. the first pipe and the second pipe are made from a reinforced thermosetting resin (RTR). A thermoplastic material is disposed between an exterior of the first pipe and an interior of the coupler. A thermoplastic material is disposed between an exterior of the second pipe and the interior of the coupler. Upon application of rotational force to the coupler, friction between the first pipe, the second pipe, and the coupler generates heat sufficient to melt the thermoplastic material such that, when the heat is removed, the hardened thermoplastic material seals the first pipe and the second pipe to the coupler. A method for coupling pipes includes disposing a thermoplastic material between an exterior of the first pipe and an interior of the coupler; disposing a thermoplastic material between an exterior of the second and an interior of the coupler; inserting the first pipe and the second pipe into the coupler; and applying a rotational force to the coupler such that friction between the first pipe, the second pipe, and the coupler generates heat sufficient to melt the thermoplastic material such that, when the heat is removed, the hardened thermoplastic material seals the first pipe and the second pipe to the coupler.


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