Insensitive propellant ignitor

Details Insensitive propellant ignitor Insensitive propellant ignitor

1992-10-26

1994-03-08

Johnson, Stephen M.

Ammunition and explosives

Igniting devices and systems

Electrical primer or ignitor

1022027, 60 39823, F42C 1912

Patent

active

052918289

ABSTRACT:
An insensitive pellet ignitor utilizes a slapper type detonator to initiate an insensitive explosive material. The insensitive explosive material is retained in a high strength housing which confines and dissipates the explosion. The insensitive explosive material is retained in a collar placed in a chamber having an orifice leading to propellant. The orifice does not allow the shockwave from the insensitive explosive to prematurely expel the propellant so that the propellant is ignited from the hot gases and particles resulting from the explosion which are ported through the orifice to the propellant.

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"Exploding Foil Initiator (EFI), Technical Discussion", Secondary Explosive Initiators & Accessories, pp. 7-8, RISI, Jan. 1991.

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