Metal working – Method of mechanical manufacture – Electrical device making
Reexamination Certificate
2006-09-07
2009-06-23
Ryan, Patrick (Department: 1795)
Metal working
Method of mechanical manufacture
Electrical device making
C429S006000
Reexamination Certificate
active
07550018
ABSTRACT:
A method is provided for producing an electrically insulating sealing arrangement for a fuel cell stack which comprises a plurality of fuel cell units that succeed one another along a stack direction by means of which the housings of the fuel cell units are connectable to one another in such a way that an adequate electrically insulating effect and adequate mechanical rigidity are ensured even at the high operating temperature.The method involves producing a ceramic metal layer and at least partially converting the metal of the ceramic metal layer into an electrically non conductive compound so as to produce a non conductive boundary layer.
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Arnold Johannes
Henne Rudolf
Zerfass Hans-Rainer
ElringKlinger AG
Paesons Thomas H.
Ryan Patrick
LandOfFree
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