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:
Feb. 22, 2022
Filed:
Sep. 25, 2019
Sumitomo Heavy Industries, Ltd., Tokyo, JP;
Kimihiro Nogiwa, Ehime, JP;
Masayuki Ishizuka, Ehime, JP;
Masayuki Saika, Ehime, JP;
Norieda Ueno, Tokyo, JP;
Akihiro Ide, Ehime, JP;
Hiroyuki Kan, Ehime, JP;
SUMITOMO HEAVY INDUSTRIES, LTD., Tokyo, JP;
Abstract
A forming apparatus which forms a metal pipe by expanding a metal pipe material, includes: a forming die for forming the metal pipe; a first electrode and a second electrode which clamp the metal pipe material at both end sides and heat the metal pipe material by causing an electric current to flow through the metal pipe material; and a first fluid supply unit and a second fluid supply unit which supply a fluid into the metal pipe material heated by the first electrode and the second electrode to expand the metal pipe material, wherein at least one of the first electrode and the second electrode is provided with a movement restriction mechanism which restricts a movement of the metal pipe material in an axial direction of the metal pipe material.