Electricity: circuit makers and breakers – Electric switch details – Contact
Reexamination Certificate
2006-03-21
2006-03-21
Friedhofer, Michael A. (Department: 2832)
Electricity: circuit makers and breakers
Electric switch details
Contact
C200S262000, C200S266000
Reexamination Certificate
active
07015406
ABSTRACT:
An electric contact comprises a main body consisting of a copper-based alloy or of stainless steel and a contact layer consisting of a gold-based alloy. The contact layer has a thickness of at least 0.3 μm and consists of gold with a content of 0.5 percent by weight to 15 percent by weight of one or more platinum group metals, and that an intermediate layer consisting of silver or of a silver-based alloy or of nickel is provided between the main body and the contact layer. The contact layer is preferably applied on the main body by a PVD process.
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Buresch Isabell
Ganz Joachim
Kaspar Franz
Ami Doduco GmbH
Friedhofer Michael A.
Orum & Roth LLC
Wieland Werke AG
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