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. 12, 2010
Filed:
Apr. 15, 2005
Robert M. Darling, South Windsor, CT (US);
Craig E. Evans, Vernon, CT (US);
Carl A. Reiser, Stonington, CT (US);
Tommy Skiba, East Hartford, CT (US);
Ryan J. Balliet, West Hartford, CT (US);
Robert M. Darling, South Windsor, CT (US);
Craig E. Evans, Vernon, CT (US);
Carl A. Reiser, Stonington, CT (US);
Tommy Skiba, East Hartford, CT (US);
Ryan J. Balliet, West Hartford, CT (US);
UTC Power Corporation, South Windsor, CT (US);
Abstract
A fuel cell power plant () has a plurality of fuel cells (,) arranged in a stack (), each fuel cell having porous, at least partially hydrophilic water transport plates () with fuel () and oxidant () reactant gas channels, there being water channels () exchanging water with the water transport plates. On shut down, water is retained in the water channels and water transport plates by means of either a micro vacuum pump (), one or two valves (), a check valve (), capillary force in the water channels to prevent water from entering the reactant channels which, if frozen, could block flow of reactant gas upon startup.