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:
Feb. 26, 2008
Filed:
Nov. 06, 2001
Applicants:
Felix Blank, Constance, DE;
Cosmas Heller, Friedrichshafen, DE;
Ottmar Schmid, Markdorf, DE;
Inventors:
Assignee:
DaimlerChrysler AG, Stuttgart, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 8/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
A fuel cell stack for gaseous fuel includes a membrane electrode unit and a distribution plate including a channel area having gas channels for distributing the anode gas and the cathode gas to the membrane electrode unit and a port area for supplying the anode gas and the cathode gas into the channel area. Additional connecting channels discharge from the port areas along the gas channels so that unused anode gas or cathode gas is locally meterable from the port areas into the gas channels via these connecting channels.