Safety and arming device/contact fuze

Details Safety and arming device/contact fuze Safety and arming device/contact fuze

1978-05-26

1983-04-19

Brown, David H.

Ammunition and explosives

Igniting devices and systems

Arming devices

102229, F42C 500, F42C 1500

Patent

active

043801978

ABSTRACT:
A pneumatically operated safe and arm device for use in an ordnance item lizes cam controlled mechanical interlocks to prevent premature arming. This device also utilizes staticdynamic fluid pressure differential to cause the enabled mechanism to proceed with arming after a predetermined ordnance item velocity has been obtained. This pressure differential operates on a piston and rod to store energy within a flexible coil spring. Energy stored within this spring is subsequently released to power rotation of a disc, thereby aligning an out-of-line explosive train and causing switching functions in an electric arming and fuzing circuit.

REFERENCES:
patent: 3382805 (1968-05-01), Swaim
patent: 3670656 (1972-06-01), Donahue et al.
patent: 3677185 (1972-07-01), Reams
patent: 3710722 (1973-01-01), Demas et al.
patent: 3768415 (1973-10-01), Czajkowski et al.
patent: 3927617 (1975-12-01), Hoelzen et al.
patent: 3938443 (1976-02-01), Wolski
patent: 3961577 (1976-06-01), O'Steen
patent: 3968751 (1976-07-01), Palifka
patent: 3990370 (1976-11-01), Campagnuolo et al.
patent: 3994231 (1976-11-01), Rudeen et al.

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