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.
Patent No.:
Date of Patent:
Jan. 09, 2018
Filed:
Mar. 03, 2016
Applicant:
Mitsubishi Aircraft Corporation, Aichi, JP;
Inventors:
Hiroshi Kawamoto, Tokyo, JP;
Toyoaki Yasui, Tokyo, JP;
Kunihiro Kuroi, Tokyo, JP;
Tomone Kishida, Aichi, JP;
Assignee:
MITSUBISHI AIRCRAFT CORPORATION, Aichi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21B 19/04 (2006.01); B21D 9/07 (2006.01); B21B 25/00 (2006.01); B21D 37/01 (2006.01);
U.S. Cl.
CPC ...
B21D 9/073 (2013.01); B21B 19/04 (2013.01); B21B 25/00 (2013.01); B21D 37/01 (2013.01);
Abstract
Provided is a mandrel which is inserted into a pipe material when the pipe material is bent, the mandrel including: a core member having a rod-shaped main body portion and a small-diameter portion which is provided on one end side of the main body portion and which is thinner than the main body portion; and a front end member which is provided on one end side of the core member and which is formed integrally with the core member so as to cover the small-diameter portion.