Ammunition and explosives – Igniting devices and systems – Arming devices
Patent
1982-10-14
1985-07-02
Brown, David H.
Ammunition and explosives
Igniting devices and systems
Arming devices
102223, 102263, F42C 500, F42C 1532
Patent
active
045261040
ABSTRACT:
A safe-arm device for use in a fuel-air explosive munition carried by an craft. The device has a housing having an environmental seal which is separated from the housing upon munition release to form a seal opening, a pressure probe for obtaining static and dynamic air pressure and extending through the seal opening when deployed, a piston and rod which is driven upon sensing of a sufficient differential air pressure between the static and dynamic air pressure probe, a safety lock which locks a pyrotechnic rotor and which disengages upon full extension of the piston rod, and an arming spring which is compressed by extension of the piston rod and which drives the pyrotechnic rotor for rotation against a mechanical escapement device thus providing for a timed rotation. The pyrotechnic rotor has two explosive wheels, each having switched detonators and upon receipt of electronic signals two explosive trains with a controlled time delay therebetween are initiated.
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Brauer Larry F.
Leach Roger W.
Beers Robert F.
Brown David H.
Pritchard Kenneth G.
Skeer W. Thom
The United States of America as represented by the Secretary of
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