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:
Mar. 25, 2025

Filed:

Sep. 28, 2020
Applicant:

Sekisui Chemical Co., Ltd., Osaka, JP;

Inventors:

Ayaka Kitagawa, Kyoto, JP;

Hiroaki Kondou, Kyoto, JP;

Kouzou Makino, Kyoto, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16L 47/03 (2006.01); B29C 65/34 (2006.01); B29K 101/12 (2006.01); B29L 31/24 (2006.01);
U.S. Cl.
CPC ...
F16L 47/03 (2013.01); B29C 65/3432 (2013.01); B29K 2101/12 (2013.01); B29L 2031/24 (2013.01);
Abstract

An electrofusion joint includes a main body and a heating wire. The main body is configured to be connected to a resin pipe containing a thermoplastic resin. The heating wire is in the main body. The heating wire includes a conducting wire and an insulating cover film that is around the conducting wire. The insulating cover film has a melting point of at least 230 degrees.


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