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. 29, 2011
Filed:
Oct. 03, 2007
Toshiaki Shimizu, Nara, JP;
Motohiro Sakata, Osaka, JP;
Toshiyuki Kitagawa, Kyoto, JP;
Kouji Moriyama, Kyoto, JP;
Kouji Ueoka, Nara, JP;
Toshiaki Shimizu, Nara, JP;
Motohiro Sakata, Osaka, JP;
Toshiyuki Kitagawa, Kyoto, JP;
Kouji Moriyama, Kyoto, JP;
Kouji Ueoka, Nara, JP;
Panasonic Corporation, Osaka, JP;
Abstract
A pressure control valve provided on a terminal plate of a capacitor includes a filter, a valve body and a cap. The filter is provided so as to close a through-hole disposed in a terminal plate and is composed of a gas permeable sheet preventing permeation of the electrolyte solution. The valve body is formed of an elastic material, has a cylindrical part and a bottom part, and is disposed so that the bottom part covers the through-hole of the terminal plate. The cap is fixed to the terminal plate, covers the valve body, and holds the valve body in a composed state with respect to the terminal plate. The cap is provided with a vent hole. The valve body and the filter are spaced apart from each other.