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.:

US 7883813 B1

PDF
Full Text
Expired
Date of Patent:
Feb. 08, 2011

Filed:

Apr. 02, 2007
Applicants:

William David Lyle, San Francisco, CA (US);

Arne Watson Ballantine, Menlo Park, CA (US);

Inventors:

William David Lyle, San Francisco, CA (US);

Arne Watson Ballantine, Menlo Park, CA (US);

Assignee:

Bloom Energy Corporation, Sunnyvale, CA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 8/24 (2006.01);
U.S. Cl.
CPC ...
Abstract

A method of operating a fuel cell system includes purging heavier and lighter than air gases from a system cabinet containing at least one fuel cell stack during a single purge step, and starting-up the fuel cell system after the purging step. The system includes an air blower, a purge manifold, and a purge damper.


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