Ammunition and explosives – Igniting devices and systems – Arming devices
Patent
1987-08-17
1988-09-13
Brown, David H.
Ammunition and explosives
Igniting devices and systems
Arming devices
102233, 102235, 102254, B41F 502
Patent
active
047700963
ABSTRACT:
A safing and arming (S&A) device 20 for a spin stabilized projectile 16 having an electronic fuzing system 18 which produces an electrical arming signal after the projectile 16 is fired. The cylindrical S&A housing 26 has two faces 28, 30 and a blow through hole 32 through the center of housing 26. A barrier recess 34 is formed in one face 28 of the housing 26 and a detonator 40 is mounted on the other face 30 and in alignment with the blow through hole 32. A barrier 36 is pivotally mounted in the barrier recess 34. Barrier 36 is held in its safe position blocking blow through hole 32 by a set back tab 54 and a barrier latch 48. The set back tab 54 is rendered inoperative when projectile 16 is fired from a gun. Latch 48 is bent out of contact with barrier 36 by a pyrotechnic actuator 56 being activated by the arming signal. When latch 48 is disengaged from the barrier 36, barrier 36 is free to move to its armed position, in which barrier 36 no longer blocks blow through hole 32. Barrier 36 is moved by centrifugal force as a result of the projectile spinning about its spin axis.
REFERENCES:
patent: 2737890 (1956-03-01), Brode
patent: 3603259 (1971-09-01), Webb
patent: 3779169 (1973-12-01), Backstein et al.
patent: 3802344 (1974-04-01), Laipple
patent: 4090450 (1978-05-01), Nygards
patent: 4691634 (1987-09-01), Titus et al.
Bayerkohler Mark A.
Maruska William O.
Brown David H.
Honeywell Inc.
Hughes E. W.
Jensen R. W.
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