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:
Jan. 17, 2012
Filed:
Oct. 24, 2007
Robert Draper, Pittsburgh, PA (US);
Gong Zhang, Murrysville, PA (US);
Roswell J. Ruka, Pittsburgh, PA (US);
Kevin P. Litzinger, Level Green, PA (US);
Paolo R. Zafred, Murrysville, PA (US);
Richard A. Basel, Pittsburgh, PA (US);
Robert Draper, Pittsburgh, PA (US);
Gong Zhang, Murrysville, PA (US);
Roswell J. Ruka, Pittsburgh, PA (US);
Kevin P. Litzinger, Level Green, PA (US);
Paolo R. Zafred, Murrysville, PA (US);
Richard A. Basel, Pittsburgh, PA (US);
Siemens Energy, Inc., Orlando, FL (US);
Abstract
A solid oxide fuel cell generator is provided for electrochemically reacting a fuel gas with a flowing oxidant gas at an elevated temperature to produce power. The generator includes a generator section receiving a fuel gas and a plurality of elongated fuel cells extending through the generator section and having opposing open fuel cell ends for directing an oxidant gas between opposing plena in the generator. A sealant defines a seal on the fuel cells adjacent at least one of the fuel cell ends. The sealant is a modified lanthanum borate aluminosilicate glass composition having a minimal amount of boron oxide and silica, and in which the sealant maintains substantially constant physical characteristics throughout multiple thermal cycles.