Electricity: circuit makers and breakers – Liquid contact – Time delay
Patent
1988-01-12
1990-01-09
Cuchlinski, Jr., William A.
Electricity: circuit makers and breakers
Liquid contact
Time delay
200264, 200275, H01H 930, H01H 3300, H01H 102, H01H 106
Patent
active
048929867
ABSTRACT:
An electrode of a vacuum circuit breaker includes a support electrode, an auxiliary support electrode of Co soldered to the support electrode, and an electric contact portion composed of a sintered porous body of Co sintered to the auxiliary support electrode and a conductive alloy impregnating the sintered porous body. The auxiliary support electrode has a protrusion formed with a flange at its end portion. The auxiliary support electrode thus prepared acts to provide a barrier to a solder during the soldering operation, to increase the joining width between the electrical contact portion and the electrode, and to prevent the characteristics of that alloy from being degraded by the soldering operation.
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Ando Hisashi
Shimizu Seiki
Watanabe Ruyji
Cuchlinski Jr. William A.
Hitachi , Ltd.
Worth W. Morris
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