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:
Apr. 10, 2007
Filed:
Aug. 30, 2004
Nileshkumar Trambaklal Dave, West Hartford, CT (US);
Nileshkumar Trambaklal Dave, West Hartford, CT (US);
UTC Power Corporation, South Windsor, CT (US);
Abstract
A silicone rubber gasket () is adhered to an anode substrate () by sealant material, such as a thermoplastic polymer, a thermoset polymer or en elastomeric polymer, which is impregnated () to provide an edge seal to the anode substrate. In one embodiment, a silicone rubber gasket () is adhered to the cathode substrate () by the sealant material which is impregnated () to provide a gas edge seal to the cathode substrate. Each fuel cell is completed during the formation of a fuel cell stack by compressing the fuel flow field plates and oxidant flow field plates to the unitized electrode assembly with gaskets. In a second embodiment, the oxidant flow field plate () is adhered to the cathode substrate by the sealant material which is impregnated into the cathode substrate to provide a gas edge seal, and the fuel flow field plate () is adhered to the oxidant flow field plate () by means of the sealant material (). The entire fuel cell with gasket () is formed in a single hot lamination step ().