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:
Mar. 30, 2010
Filed:
Oct. 07, 2005
Applicants:
Steven G. Goebel, Victor, NY (US);
Jeffrey A. Rock, Fairport, NY (US);
Dirk Rensink, Mainz, DE;
Steven J. Spencer, Rochester, NY (US);
William H. Pettit, Rochester, NY (US);
Inventors:
Steven G. Goebel, Victor, NY (US);
Jeffrey A. Rock, Fairport, NY (US);
Dirk Rensink, Mainz, DE;
Steven J. Spencer, Rochester, NY (US);
William H. Pettit, Rochester, NY (US);
Assignee:
GM Global Technology Operations, Inc., Detroit, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 2/00 (2006.01); H01M 2/02 (2006.01); H01M 2/08 (2006.01); H01M 2/14 (2006.01);
U.S. Cl.
CPC ...
Abstract
Clearance gaps in the inactive feed regions of a fuel cell stack are controlled by non-bonded, non-nested bipolar plates to provide reactant flow uniformity and pressure within fuel cells and fuel cell stacks utilizing nested bipolar plates in the active feed regions and non-nested bipolar plates in the inactive feed regions.