Temperature sensing circuit breaker or switch
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United States of America Patent
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-
Jun 12, 1984
Grant Date -
N/A
app pub date -
May 10, 1982
filing date -
May 10, 1982
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A circuit breaker or switch utilizes the Curie point temperature characteristics of an amorphous ferromagnetic metal in cooperation with a magnet to make or interrupt an electrical circuit upon the amorphous material being heated to its Curie point temperature. The circuit breaker has a planar base member with a raised projection which supports a stationary contact member so that the movable contact member overhangs the stationary contact member. The movable contact member is provided with a number of layers of amorphous ferromagnetic material, disposed adjacent the stationary contact, bringing the movable contact member into electrical contact with the stationary contact member. Upon reaching its Curie point temperature, the amorphous ferromagnetic material will become paramagnetic or nonmagnetic material, so that the inherent resiliency of the movable contact material causes the electrical circuit to be made or broken.
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