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:
Dec. 25, 2012
Filed:
Mar. 04, 2008
Applicants:
Arno Mattejat, Erlangen, DE;
Igor Mehltretter, Buckenhof, DE;
Inventors:
Arno Mattejat, Erlangen, DE;
Igor Mehltretter, Buckenhof, DE;
Assignee:
Siemens Aktiengesellschaft, München, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 2/38 (2006.01); H01M 8/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
A fuel cell with a gas chamber, arranged between two plate elements, is provided. One of the plate elements includes bosses for supporting the plate element on the other plate element in a regular grid structure. Between the bosses runs a network of gas channels passing through the gas chamber, the bosses being at most three times longer than wide. The bosses form between themselves first gas channels in a first region of the gas chamber and larger-volume second gas channels in a second region of the gas chamber.