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:
Nov. 23, 1993
Filed:
Oct. 29, 1992
Bruno Barp, Rudolfstetten, CH;
Roland Diethelm, Bauma, CH;
Gebrueder Sulzer Aktiengesellschaft, Winterthur, CH;
Abstract
A centrally symmetrical fuel cell battery is made of stacked modules each of which has an electrochemical active plate made of one oxide ion conducting solid electrolyte and two electrodes, a gas impervious wall between an air chamber and a fuel chamber, an air conduit from at least one peripheral intake location to a center of the module where the air comes in contact with the electrochemically active plates, and a central supply point for a gaseous fuel. Unlike prior art fuel cell batteries of this type which require seal rings, the fuel cell battery of this application requires no seal rings. The electrochemically active plates are continuous, and supply conduits for the fuel are provided for directing the fuel to each module from at least one intake on the periphery of the module to a central supply point of the module.