Ammunition and explosives – Igniting devices and systems – Multiple mode fuzes
Patent
1997-07-07
1999-02-16
Tudor, Harold J.
Ammunition and explosives
Igniting devices and systems
Multiple mode fuzes
102247, 102499, F42C 914
Patent
active
058723242
ABSTRACT:
A trimode fuze is provided which comprises a combination of a standard dual ode fuze with the addition of a void sensing mechanism. The modified fuze provides detonation of a warhead under three distinct scenarios: impact upon a hard target with detonation caused by the deformation of the warhead, displacing the hard target firing pin, penetration and continuous deceleration within a solid target with detonation caused by the expiration of a penetration delay timer, and penetration of a soft target with detonation caused by the transition from a target impact deceleration to the lower preset deceleration threshold.
The first two modes of detonation are similar to those found in prior art dual mode fuzes. The third mode is brought about when target impact deceleration causes compression of a spring. As the spring compresses, steel balls slide out of a locking mechanism. Once said deceleration reduces below a preset threshold, an additional set of steel balls is released, which allows the spring loaded firing pin to impact on the detonator.
REFERENCES:
patent: 1531717 (1925-03-01), Remondy
patent: 1585686 (1926-05-01), Pantoflicek
patent: 2465395 (1949-03-01), O'Rear
patent: 4693180 (1987-09-01), Weber et al.
patent: 5591935 (1997-01-01), Shamblen et al.
Chan Steve N.
Watson, Jr Fred W.
Bechtel, Esq. James B.
The United States of America as represented by the Secretary of
Tudor Harold J.
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