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. 21, 2025
Filed:
Feb. 08, 2023
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Naoki Ueda, Nagoya, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
Abstract
A manufacturing method for a tank including a liner and a reinforcement layer having a first layer made up of a pipe fitted to an outer surface of the liner and a second layer covering the pipe includes forming the pipe by winding first fiber reinforced resin containing a first fiber and a first resin around a mandrel and thermally curing the first fiber reinforced resin under a first condition, forming the first layer by fitting the pipe to the liner, and forming the second layer by winding a second fiber reinforced resin containing a second fiber and a second resin around the liner to cover the first layer and thermally curing the second fiber reinforced resin under a second condition. The second condition defines an upper limit temperature at which a shear strength of the first resin is kept higher than a residual stress in the pipe.