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. 04, 1995
Filed:
Nov. 22, 1993
Dorothy Stockburger, Kingston, CA;
Jim Tregenza, Village, CA;
Yardney Technical Products, Inc., Pawcatuck, CT (US);
Abstract
A process for controlling the hydrogen that evolves as a parasitic by-product during the operation of a metal/air fuel cell which comprises feeding into a catalytic recombiner a gaseous stream containing hydrogen being discharged from the metal/air cell together with an amount of oxygen sufficient to convert the hydrogen to water, said oxygen gas concentration being monitored and adjusted to maintain an oxygen concentration in the gaseous stream entering the recombiner in the range of 1.5 to 2.5% by volume. The process is of particular value in closed system aluminum/oxygen fuel cells in which small amounts of hydrogen must be removed, e.g. the sealed hull of an underwater vehicle.