Electronic time delay safety and arming mechanism

Details Electronic time delay safety and arming mechanism Electronic time delay safety and arming mechanism

1977-10-19

1979-03-27

Jordan, Charles T.

Ammunition and explosives

Igniting devices and systems

Arming devices

102215, 102245, 102255, F42C 1540, F42C 1522

Patent

active

041459717

ABSTRACT:
In a fuse for spinning explosive projectiles, a base member having a sliding member mounted thereon for generally radially outwardly sliding movement in response to centrifugal force, a shear pin holding the sliding member in a safe position with a piston actuator mounted to break the shear pin upon proper actuation thereof to allow the sliding member to move to an arm position, a detonator mounted so as to be properly positioned only when the sliding member has moved to the arm position, switch means normally maintaining the piston actuator and the detonator in a safe mode and operating in response to centrifugal force and the movement of the sliding member to provide a circuit for the actuation of the piston actuator and the detonator, a battery actuatable in response to setback and spin of the projectile, and redundant and sequential electrical timing means connected to the battery and the switch means for activating the piston actuator a predetermined time after the battery is activated and for arming the detonator after the piston actuator breaks the shear pin.

REFERENCES:
patent: 2458470 (1949-01-01), Hafstad et al.
patent: 2737890 (1956-03-01), Brode
patent: 2919648 (1960-01-01), Jordan
patent: 3760732 (1973-09-01), Schuster et al.
patent: 3890901 (1975-06-01), Anderson et al.
patent: 3967554 (1976-07-01), Troyer, Jr.

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