Electronic Primer Ignition System.
Patent, filed 15 Nov 93, patented 14 May 96,
DEPARTMENT OF THE NAVY WASHINGTON DC
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Ignition current is conducted by a firing circuit through a firing pin to a primer mixture retained by its cap within a cartridge case from which the cap is electrically separated by an insulator to effect primer ignition with reduced lock time by activation of a firing switch independently of the firing pin. Voltage for the firing circuit is derived from a battery, maintained in a charged condition by alternate voltage supply sources, arid stored at an ignition tiring level for a prolonged period of time to accommodate selective activation of the firing switch after the firing pin contacts the primer cap.
- Combustion and Ignition