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:
Sep. 20, 2011
Filed:
Oct. 13, 2010
Yoichiro Tsuji, Osaka, JP;
Eiichi Yasumoto, Kyoto, JP;
Kazuhito Hatoh, Osaka, JP;
Shinsuke Takeguchi, Osaka, JP;
Hiroki Kusakabe, Osaka, JP;
Shigeyuki Unoki, Katano, JP;
Shinichi Arisaka, Osaka, JP;
Yoichiro Tsuji, Osaka, JP;
Eiichi Yasumoto, Kyoto, JP;
Kazuhito Hatoh, Osaka, JP;
Shinsuke Takeguchi, Osaka, JP;
Hiroki Kusakabe, Osaka, JP;
Shigeyuki Unoki, Katano, JP;
Shinichi Arisaka, Osaka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
A preservation assembly of a polymer electrolyte fuel cell stack is provided. The assembly includes an uninstalled polymer electrolyte fuel cell stack and sealing units. The uninstalled polymer electrolyte fuel cell stack is provided with an oxidizing agent passage having an inlet and an outlet and extending through a cathode and a reducing agent passage having an inlet and an outlet and extending through an anode. The sealing units include sealing plugs or containers and are configured to seal the inlet and the outlet of the oxidizing agent passage within which an oxygen concentration has been decreased and to seal the inlet and the outlet of the reducing agent passage within which the oxygen concentration has been decreased. The uninstalled polymer electrolyte fuel cell stack is in a state before an assembled polymer electrolyte fuel cell stack is incorporated into a fuel cell system.