Ammunition and explosives – Igniting devices and systems – Electrical primer or ignitor
Patent
1997-03-07
1998-11-03
Jordan, Charles T.
Ammunition and explosives
Igniting devices and systems
Electrical primer or ignitor
10220214, F42C 1912
Patent
active
058312030
ABSTRACT:
A detonator (10) contains an SCB initiator assembly (35) in initiation relation to an ignition charge (18). The SCB initiator assembly (35) contains an initiator element (36) having a bridge (60) of semiconductor material between two conductive lands (62a, 62b). The bridge (60) provides a resistance of at least about 50 ohms and has a volume between 48,600 cubic microns and 600,000 cubic microns with a typical thickness of two microns. A firing current of more than 200 milliamp provided to the initiator assembly (35) via input leads (26a, 26b) causes the bridge (60) to initiate the ignition charge (18).
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Jordan Charles T.
Libert Victor E.
Montgomery Christopher K.
Spaeth Frederick A.
The Ensign-Bickford Company
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