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. 20, 2011

Filed:

Oct. 19, 2006
Applicants:

Toshiyuki Katayama, Hyogo, JP;

Yoshio Nakano, Hyogo, JP;

Takashi Yagi, Hyogo, JP;

Masamichi Matsui, Hyogo, JP;

Inventors:

Toshiyuki Katayama, Hyogo, JP;

Yoshio Nakano, Hyogo, JP;

Takashi Yagi, Hyogo, JP;

Masamichi Matsui, Hyogo, JP;

Assignee:

Nichirin Co., Ltd., Kobe-shi, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16L 33/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A joint structure of a steel pipe and a metal pipe includes a socket; and a thermosetting resin, the steel pipe including a first joining end having a flat portion of the outer surface of the first joining end adjacent to the base, and an uneven portion of the outer surface of the first joining end adjacent to the front end, the socket covering the first joining end, the metal pipe including a second joining end, the second joining end being interposed between the socket and the first joining end, the first joining end being joined to the second joining end by crimping while the thermosetting resin is present in the gap between the inner surface of the socket and the outer surface of the second joining end and between the outer surface of the first joining end and the inner surface of the second joining end.


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