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:
Apr. 06, 2021
Filed:
Feb. 02, 2018
Sumitomo Heavy Industries, Ltd., Tokyo, JP;
Masayuki Saika, Ehime, JP;
Masayuki Ishizuka, Ehime, JP;
Norieda Ueno, Tokyo, JP;
Shuji Miyazaki, Kanagawa, JP;
Koji Moritani, Kanagawa, JP;
Taizo Yamamoto, Kanagawa, JP;
SUMITOMO HEAVY INDUSTRIES, LTD., Tokyo, JP;
Abstract
A forming device that expands a metal pipe material to form a metal pipe includes a die that has an upper die and a lower die, at least one of which is movable, and that form the metal pipe, an electrode that energizes the metal pipe material to heat the metal pipe material, a gas supply part that supplies a gas into the heated metal pipe material to expand the metal pipe material, and a die movement suppressing part that suppresses the movement of the die by an electromagnetic force at least when the energization to the metal pipe material is performed by the electrode.