Safety and arming system for tube launched projectile

Details Safety and arming system for tube launched projectile Safety and arming system for tube launched projectile

1991-12-13

1992-07-21

Brown, David H.

Ammunition and explosives

Igniting devices and systems

Arming devices

102249, 102254, 102263, F42C 1524, F42C 1531, F42C 1534, F42C 1540

Patent

active

051313286

ABSTRACT:
An inertia element within a projectile is displaced to a retracted position y acceleration of the projectile during launch to unblock displacement of a slider to an armed position in response to subsequent pressurization of a projectile flight motor. Safe separation timers are thereby enabled in response to proper launch to delay pressurization of the flight motor and powering of an explosive firing circuit through switches actuated by said displacement of the slider from a safe position to the armed position. The slider is held in its safe position by an electrically grounded shear wire that is ruptured in response to slider displacement thereby removing a power disabling shunt connection to the firing circuit.

REFERENCES:
patent: 3724385 (1973-04-01), Beatty et al.
patent: 4407201 (1983-10-01), Jensen
patent: 4716830 (1988-01-01), Davis et al.
patent: 4815381 (1989-03-01), Bullard
patent: 4953475 (1990-09-01), Monach et al.

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