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.:

US 6905792 B1

PDF
Full Text
Expired
Date of Patent:
Jun. 14, 2005

Filed:

Oct. 05, 2001
Applicants:

Mitsuharu Imaseki, Saitama, JP;

Takeshi Ushio, Saitama, JP;

Yoshirou Shimoyama, Saitama, JP;

Inventors:

Mitsuharu Imaseki, Saitama, JP;

Takeshi Ushio, Saitama, JP;

Yoshirou Shimoyama, Saitama, JP;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01M008/18 ; G05D015/00 ;
U.S. Cl.
CPC ...
Abstract

The present invention provides a cooling system of fuel cell, which solves the gas biting noise problem by trapping bubble in a coolant, gives protection to a stack (MEA) and the membrane of a humidifier by regulating the coolant pressure of fuel cell and improves the life of a ion exchanger by preventing foreign materials (carbonate ion etc.) from dissolving into the coolant.


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