Thermal metal oxide varistor circuit protection device
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United States of America Patent
Stats
-
Feb 14, 2017
Grant Date -
Aug 21, 2014
app pub date -
Jun 17, 2011
filing date -
Jun 17, 2011
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A circuit protection device including a housing, a metal oxide varistor disposed within said housing, a terminal having a contact lead at a first end electrically attached to said metal oxide varistor by solder and having a second end extending outside of said housing, an arc shield disposed within said housing between said contact lead and said metal oxide varistor, a micro switch housed in a pocket portion of the housing, said micro switch having a trigger portion and an indicator portion disposed at least partially outside of said housing, said arc shield positioned against said trigger portion, and a spring configured to bias said arc shield away from said pocket portion and to move said arc shield away from said trigger portion when said solder is melted to provide a barrier between said metal oxide varistor and said contact lead, whereby the indicator portion is retracted into the housing.
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