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.

Date of Patent:
Dec. 14, 1999

Filed:

Oct. 14, 1997
Applicant:
Inventors:

Ilona Busenbender, Aachen, DE;

Hendrik Dohle, Eschweiler, DE;

Thorsten Kels, Juelich-Broich, DE;

Volker Peinecke, Aachen, DE;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M / ;
U.S. Cl.
CPC ...
429 17 ; 429 26 ;
Abstract

In a fuel cell arrangement with at least one fuel cell operated by a fuel and an oxidizing agent, means are provided for effecting gravity driven circulation of the fuel and the oxidizing agent through the fuel cell so that no pumping means, which consume power and need servicing, are required.


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