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:
Mar. 28, 2006
Filed:
May. 16, 2003
Michio Okamura, Yokohama, JP;
Hitoshi Nakamura, Yokohama, JP;
Kotaro Kobayashi, Tokyo, JP;
Power Systems Co., Ltd., Yokohama, JP;
Japan Gore-Tex Inc., Tokyo, JP;
Kokoku Intech Co., Ltd., Tokyo, JP;
Abstract
The invention provides an electric double-layer capacitor sealed up by a flexible casing material that ensures a release of pressure upon an increasing internal pressure. A pressure release valve () is attached to the flexible casing material. The pressure release valve () comprises a collar airtightly joined to the flexible casing material and a cylindrical portion () connected to the collar, extending out of a capacitor enclosure. The cylindrical portion () comprises an end part () having a self-closing passage () that is opening to the outside only upon a pressure release and is closed up in a normal state, and a channel () in communication with the interior of the capacitor enclosure.