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:
Dec. 08, 2020
Filed:
Jul. 18, 2018
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Masahito Yabuoshi, Chiryu, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
KOBE STEEL, LTD., Kobe, JP;
Abstract
A pipe assembly includes an inner pipe member and an outer pipe member that is externally fixed to an end portion of the inner pipe member. The inner pipe has a thickness that is less than that of the outer pipe which is placed outside the end portion of the inner pipe member. An additional fixture member is placed outside the portion where the inner and outer pipes are fitted to each other. While the inner pipe, the outer pipe, and the additional fixture are in this state, an electromagnetic coil is placed inside the inner pipe at a position where the outer pipe and the additional fixture are to be fixed. The diameter of the inner pipe increases by applying a pulse current to the electromagnetic coil. The diameter of the outer pipe increases by the action of force applied when the diameter of the inner pipe is increased.