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. 07, 2006
Filed:
Aug. 04, 2003
Kenichi Maruyama, Hekinan, JP;
Kazuya Murata, Kuwana, JP;
Koichi Ban, Tokai, JP;
Toshio Morikawa, Toyota, JP;
Shigetaka Yoshikawa, Nishikamo-gun, JP;
Eiichi Ueda, Kadoma, JP;
Kenichi Maruyama, Hekinan, JP;
Kazuya Murata, Kuwana, JP;
Koichi Ban, Tokai, JP;
Toshio Morikawa, Toyota, JP;
Shigetaka Yoshikawa, Nishikamo-gun, JP;
Eiichi Ueda, Kadoma, JP;
DENSO Corporation, Kariya, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Tiger Corporation, Osaka, JP;
Abstract
A heat accumulator for vehicle use, attached to a vehicle, has a double tank structure composed of an outer tank and an inner tank, a space formed between the outer tank and the inner tank being maintained as a vacuum, the outer tank and the inner tank each have an opening on a bottom face, the opening of the outer tank and that of the inner tank are joined to each other at the entire peripheries of the openings, preventing means for preventing fatigue failure from starting at the joining portion being provided at a portion extending from the opening to at least a side of the outer tank.