Flare with safe-and-arm ignition system

Ammunition and explosives – Pyrotechnics – Flare

Patent

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Details

102506, 102256, F42B 436, F42B 1200, F42C 1534

Patent

active

H00016039

ABSTRACT:
An aerial flare having a safe-and-arm ignition system in which a radially vable valve element or slider is retained in a safe position obstructing ignition ports by engagement of the slider with interior walls of the flare casing. To deploy the flare, an expulsion charge is electrically detonated, ruptures a frangible barrier, ignites primer in the igniter, and expels igniter-illuminant assembly from the forward end of the casing. When the igniter clears the casing, the slider is powered radially outwardly under the force of a biasing spring to uncover the ignition ports so that the parts are in an arm position. The flaming primer then ignites the illuminant through the open ignition ports.

REFERENCES:
patent: H453 (1988-04-01), Schmidlin
patent: 3392672 (1968-07-01), Noles
patent: 4029014 (1977-06-01), Cunningham
patent: 4483254 (1984-11-01), Thurston et al.
patent: 4573411 (1986-03-01), Liebhardt et al.
patent: 4599945 (1986-07-01), Groustra et al.
patent: 4683823 (1987-08-01), Dinger et al.
patent: 4890556 (1990-01-01), Ottmann et al.
patent: 5033383 (1991-07-01), Edminster
patent: 5063847 (1991-11-01), Haissig et al.

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