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:
Dec. 20, 1977
Filed:
Feb. 02, 1976
Applicant:
Inventors:
Michael A DeCrescente, Wethersfield, CT (US);
George K Layden, East Hartford, CT (US);
Roscoe A Pike, Simsbury, CT (US);
Assignee:
United Technologies Corporation, Hartford, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D01F / ;
U.S. Cl.
CPC ...
264 296 ; 1621 / ; 264 91 ; 264137 ; 264140 ; 4234476 ; 4234477 ; 427228 ; 428280 ;
Abstract
Porous carbon sheets suitable for use as fuel cell electrode support plates are produced from inexpensive carbonizable filaments. The filaments are chopped into short lengths, felted, sprayed with a binder and the binder is cured whereby sheets are defined. The sheets are thereafter pyrolyzed to convert both the binder and filaments to carbon and to thereby produce the desired porous substrate material.