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:
May. 26, 1981
Filed:
Oct. 29, 1979
Applicant:
Inventors:
Anthony J DeCasperis, South Windsor, CT (US);
Richard J Roethlein, Stafford Springs, CT (US);
Richard D Breault, Coventry, CT (US);
Assignee:
United Technologies Corporation, Hartford, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M / ; H01M / ; B29C / ; C01B / ;
U.S. Cl.
CPC ...
156 89 ; 156298 ; 264 291 ; 264 295 ; 264109 ; 264111 ; 428408 ; 429 36 ; 429 44 ; 429185 ;
Abstract
A porous fuel cell component, such as an electrode substrate, has a densified edge which forms an improved gas seal during operation when soaked with electrolyte. The edges are made from the same composition as the rest of the component and are made by compressing an increased thickness of this material along the edges during the fabrication process.