Initiator
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United States of America Patent
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Sep 11, 2007
Grant Date -
Jun 16, 2005
app pub date -
Mar 17, 2003
filing date -
Mar 29, 2002
priority date (Note) -
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status (Latency Note)
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Abstract
An initiator includes, as constitutive components, a pair of electrodes disposed with an insulator disposed therebetween; a bridge wire connected between the pair of electrodes and adapted to generate heat when energized; an explosive which detonates in response to heat generation of the bridge wire; and a casing that hermetically accommodates the bridge wire and the explosive. The insulator includes a step for enhancing the resistance of the insulator to pressure generated through detonation of the explosive when the insulator receives the thus-generated pressure. The step is formed such that the area of the explosive-side pressure reception surface of the insulator is greater than that of the counter-explosive-side pressure reception surface thereof.
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