Electricity: electrical systems and devices – Safety and protection of systems and devices – Circuit interruption by thermal sensing
Patent
1997-11-24
1998-12-01
Gaffin, Jeffrey
Electricity: electrical systems and devices
Safety and protection of systems and devices
Circuit interruption by thermal sensing
361117, 361124, 361 93, H02H 504
Patent
active
058447610
ABSTRACT:
A device for line card lightning and power fault protection includes a heat generating fusible resistive element connected to two electrical terminals using a controlled-melting temperature solder. The resistive element has enough thermal mass to withstand low level overcurrent conditions. The electrical terminal configuration and material are designed to thermally isolate the resistor. A spring tensioning device is included to aid in circuit disconnect when sufficient overcurrent exists to melt the resistor-to-terminal solder. The entire assembly is housed in a high temperature insulating plastic enclosure which permits installation using surface mount technology.
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Faust Richard S.
Gaffin Jeffrey
Huynh Kim
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