Chemistry: electrical current producing apparatus – product – and – With pressure equalizing means for liquid immersion operation
Reexamination Certificate
2008-04-08
2008-04-08
Ryan, Patrick Joseph (Department: 1795)
Chemistry: electrical current producing apparatus, product, and
With pressure equalizing means for liquid immersion operation
C205S125000
Reexamination Certificate
active
07354675
ABSTRACT:
An electrochemical cell includes a first electrode, a second electrode, a proton exchange membrane disposed between and in intimate contact with the electrodes, and a pressure pad disposed in electrical communication with the first electrode. The pressure pad is an electrically conductive sheet and is of a structure that is conformable to pressure variations within the cell. Methods of forming the pressure pad include disposing dimples or corrugations at the electrically conductive member. A method of maintaining compression within the cell includes disposing the electrically conductive member and the compression member at the first electrode, applying a load at the cell to compress the cell components, and maintaining electrical communication through the electrically conductive member.
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Byron, Jr. Robert H.
Molter Trent M.
Moulthrop, Jr. Lawrence C.
Shiepe Jason K.
Speranza A. John
Cantor & Colburn LLP
Proton Energy Systems, Inc.
Ryan Patrick Joseph
Wills Monique
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