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:
Mar. 31, 2015

Filed:

Dec. 13, 2005
Applicants:

Ronald James Kelley, Coral Springs, FL (US);

Steven Duane Pratt, Fort Lauderdale, FL (US);

Sivakumar Muthuswamy, Plantation, FL (US);

Robert Pennisi, Boca Raton, FL (US);

Inventors:

Ronald James Kelley, Coral Springs, FL (US);

Steven Duane Pratt, Fort Lauderdale, FL (US);

Sivakumar Muthuswamy, Plantation, FL (US);

Robert Pennisi, Boca Raton, FL (US);

Assignee:

Google Technology Holdings LLC, Mountain View, CA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 8/04 (2006.01); H01M 8/10 (2006.01);
U.S. Cl.
CPC ...
H01M 8/04261 (2013.01); H01M 8/04388 (2013.01); H01M 8/04194 (2013.01); H01M 8/04365 (2013.01); H01M 8/04798 (2013.01); H01M 8/1011 (2013.01); H01M 2008/1095 (2013.01); Y02E 60/50 (2013.01);
Abstract

A method of and fuel cell system for limiting an amount of a fuel crossing over a membrane in a fuel cell, the method including determining an appropriate molecular ratio of the fuel and water for a fuel-water mixture; and controlling an amount of the fuel-water mixture that is available to an anode side of the membranein the fuel cell according to an amount of the fuel that will be electro-oxidized by the fuel cell. The fuel cell system includes a fuel cell membranehaving an anode layer, a cathode layer, and an electrolyte layerwhere the cathode layer is exposed to an oxygen source, and a fuel delivery systemincluding a fuel chamberdisposed around and proximate to the anode layer at a side opposite to the electrolyte layer, the fuel delivery system implementing the method above.


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