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:
Apr. 06, 2004
Filed:
Dec. 20, 2002
Applicant:
Inventor:
Christopher T. Kirby, Burlington, CA;
Assignee:
Ballard Power Systems Inc., Burnaby, CA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 2/08 ;
U.S. Cl.
CPC ...
H01M 2/08 ;
Abstract
An elastomer may be used to construct a separate, moldable part that engages the edge a membrane electrode assembly (MEA) to thereby seal the MEA. The seal has a groove defining two sealing portions separated by a web portion. The groove of the seal then engages the edge of the MEA and can maintain a tight fit without the need for additional adhesives. Additional features may extend laterally from the web portion to assist in separating cathode and anode plates and/or encompass, for example, manifold openings.