Ammunition and explosives – Igniting devices and systems – Arming devices
Patent
1989-08-07
1990-07-03
Brown, David H.
Ammunition and explosives
Igniting devices and systems
Arming devices
102238, 102245, 102255, F42C 1504, F42C 1526, F42C 1534
Patent
active
049381385
ABSTRACT:
A spin stabilized projectile (16) containing a high explosive bursting charge (24) is provided with a safing and arming mechanism (20) comprising a safety barrier (48) for blocking the firing train between the detonator (38) and the charge (24), and two mechanical components for restraining and releasing the barrier. The two mechanical components include a conventional setback tab (76), which is responsive to forces of linear acceleration during launching of the projectile (16), and a delayed action lock ball device (67, 68), which is responsive to centrifugal forces after the projectile (16) has begun to spin. The delay in the response of the lock ball device (67, 68) to the centrifugal forces is accomplished by means of a creep ribbon (54) which prevents release of the barrier (48) until the ribbon (54) has undergone a predetermined amount of time-dependent deformation.
REFERENCES:
patent: 2516323 (1950-07-01), Jordan
patent: 3603259 (1971-09-01), Webb
patent: 4653402 (1987-03-01), Halssig et al.
patent: 4744298 (1988-05-01), Popovitch
patent: 4770096 (1988-09-01), Maruska et al.
Brown David H.
Honeywell Inc.
Hughes E. W.
Jensen R. W.
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