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:
Jul. 05, 2005
Filed:
Oct. 28, 2002
Timothy A. Bekkedahl, Loveland, CO (US);
Lawrence J. Bregoli, Southwick, MA (US);
Richard D. Breault, North Kingstown, RI (US);
Emily A. Dykeman, Cheyenne, WY (US);
Jeremy P. Meyers, West Hartford, CT (US);
Timothy W. Patterson, East Hartford, CT (US);
Tommy Skiba, Hartford, CT (US);
Chris Vargas, Hamden, CT (US);
Deliang Yang, Houston, TX (US);
Jung S. Yi, Mansfield, CT (US);
Timothy A. Bekkedahl, Loveland, CO (US);
Lawrence J. Bregoli, Southwick, MA (US);
Richard D. Breault, North Kingstown, RI (US);
Emily A. Dykeman, Cheyenne, WY (US);
Jeremy P. Meyers, West Hartford, CT (US);
Timothy W. Patterson, East Hartford, CT (US);
Tommy Skiba, Hartford, CT (US);
Chris Vargas, Hamden, CT (US);
Deliang Yang, Houston, TX (US);
Jung S. Yi, Mansfield, CT (US);
UTC Fuel Cells, LLC, South Windsor, CT (US);
Abstract
Each cell of a fuel cell stack is provided, between the anodeand cathodes, with either (a) a permanent shunt () which may be a discrete resistor (), a diode (), a strip of compliant carbon cloth (), or a small amount of conductive carbon black () in the ionomer polymer mixture of which the proton exchange membrane () is formed, or (b) a removeable shunt such as a conductor () which may be rotated into and out of contact with the fuel cell anodes and cathodes, or a conductor () which may be urged into contact by means of a shape memory alloy actuator spring (), which may be heated.