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:
Sep. 21, 2010
Filed:
Dec. 23, 2003
Applicants:
Robert Brule, Calgary, CA;
Xinge Zhang, Calgary, CA;
Dhanwant Chahal, Calgary, CA;
Zheng Tang, Calgary, CA;
Inventors:
Robert Brule, Calgary, CA;
Xinge Zhang, Calgary, CA;
Dhanwant Chahal, Calgary, CA;
Zheng Tang, Calgary, CA;
Assignee:
Versa Power Systems, Ltd., Calgary, Alberta, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 5/22 (2006.01); D21H 13/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A flexible seal for use in a solid oxide fuel cell stack is formed from a fiber matrix with a plurality of solid particles through tape casting method. The fibers and particles are preferably ceramic and may be formed from alumina or zirconia. The seal may be formed by forming a slurry of fibers, particles, a binder and a non-aqueous solvent, tape casting the slurry, drying the tape seal, die-cutting, prior to installation in the fuel cell stack.