Pyrotechnic circuit breaker
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United States of America Patent
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Jul 3, 2007
Grant Date -
Apr 21, 2005
app pub date -
Oct 13, 2004
filing date -
Oct 17, 2003
priority date (Note) -
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status (Latency Note)
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Abstract
A circuit breaker including a pyrotechnic element configured to ablate, tear, or cut a portion of the circuit. The portion of the circuit to be broken may be formed to be readily broken and/or may be a current load-based fuse. Also, the circuit breaker may be configured to ensure predictable progressive lateral tearing of the portion of the circuit to be broken; the circuit breaker may optionally be configured so that substantially all of the pyrotechnic element's output is focused on breaking the circuit; and the circuit breaker may optionally include a positive displacement mechanism that, after actuation of the pyrotechnic igniter, prevents the circuit breaker from inadvertently re-closing.
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