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:
Jul. 11, 1995
Filed:
Sep. 24, 1993
David P Wilkinson, North Vancouver, CA;
Henry H Voss, West Vancouver, CA;
James Dudley, Port Moody, CA;
Gordon J Lamont, Vancouver, CA;
Vesna Basura, Burnaby, CA;
Ballard Power Systems Inc., North Vancouver, CA;
Abstract
A method and apparatus oxidizes the carbon monoxide present in an incoming reactant fuel stream and/or carbon monoxide produced by the reverse water-shift reaction to carbon dioxide in a reactant stream introduced to an electrochemical fuel cell. The reactant stream comprises hydrogen, carbon dioxide and carbon monoxide. A first oxygen-containing gas stream is introduced into the reactant stream through a first port disposed between the reactant stream inlet and the reactant stream outlet. A further oxygen-containing gas stream is introduced into the reactant stream through at least one secondary port located between the first port and the reactant stream outlet.