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:
May. 26, 2020

Filed:

May. 19, 2016
Applicant:

Sango Co., Ltd., Miyoshi-shi, Aichi, JP;

Inventors:

Yoshinori Morita, Miyoshi, JP;

Akira Murakami, Miyoshi, JP;

Tomoyuki Takeda, Miyoshi, JP;

Fumio Kaneda, Hamura, JP;

Haruo Fukushima, Hamura, JP;

Assignee:

SANGO CO., LTD., Miyoshi-Shi, Aichi, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C21D 1/18 (2006.01); C21D 9/08 (2006.01); C21D 11/00 (2006.01); C21D 1/62 (2006.01); C21D 1/667 (2006.01); B21D 53/88 (2006.01); B23P 17/02 (2006.01);
U.S. Cl.
CPC ...
C21D 1/18 (2013.01); C21D 1/62 (2013.01); C21D 9/08 (2013.01); C21D 9/085 (2013.01); C21D 11/005 (2013.01); B21D 53/88 (2013.01); B23P 17/02 (2013.01); C21D 1/667 (2013.01);
Abstract

A hardening apparatus comprises a tracing gauge that is a member having the same axis shape as the axis shape of a bent pipe and being held in an attitude identical to the bent pipe, and a tracing device that is a member which can move in the longitudinal direction of the bent pipe and the tracing gauge and can move in the direction perpendicular to the longitudinal direction. A guide part engaged with the tracing gauge in a manner slidable along the tracing gauge is held at one end of the tracing device, and a hardening device is held at the other end. A transportation device moves the hardening device in the longitudinal direction by moving the tracing device.


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