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:
Jul. 01, 2014

Filed:

Oct. 23, 2007
Applicants:

Sonia Quattrociocchi, Mississauga, CA;

Rami Michel Abouatallah, Vaughan, CA;

Todd Arnold Simpson, Dunnville, CA;

Inventors:

Sonia Quattrociocchi, Mississauga, CA;

Rami Michel Abouatallah, Vaughan, CA;

Todd Arnold Simpson, Dunnville, CA;

Assignee:

Hydrogenics Corporation, Mississauga, CA;

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 8/04 (2006.01); H04L 29/06 (2006.01);
U.S. Cl.
CPC ...
H01M 8/0438 (2013.01); H01M 8/04753 (2013.01); H01M 8/04089 (2013.01); H01M 8/04223 (2013.01); H01M 8/04231 (2013.01); H04L 69/18 (2013.01); Y02E 60/50 (2013.01);
Abstract

An electrochemical cell system is provided having: at least one electrochemical cell stack, each stack having at least one reactant fluid inlet; a pressure transmitter arranged in the at least one reactant fluid inlet of each stack; and a control unit for regulating the electrochemical cell system, the control unit receiving at least one signal value from the pressure transmitter indicative of the reactant fluid pressure. The control unit may compare the at least one signal value with a stored values and generate a leak indication based on the rate of pressure decay within the electrochemical cell system. A method of detecting and indicating a leak is also disclosed.


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