Dual pressure sensing safing and arming mechanism

Details Dual pressure sensing safing and arming mechanism Dual pressure sensing safing and arming mechanism

1976-06-15

1977-04-05

Brown, David H.

Ammunition and explosives

Igniting devices and systems

102 76P, F42C 500

Patent

active

040155331

ABSTRACT:
A dual pressure sensing safing and arming mechanism having a first spring biased piston movable by a first, low fluid pressure signal to remove a first interlock on the mechanism and a second spring biased piston movable by a second, high fluid pressure signal to remove a second interlock on the mechanism. Upon the removal of the pair of interlocks an arming slider containing a detonator therein moves into operative alignment with a firing mechanism. A reverse order of the fluid pressure signals jams the first piston and arming slider thereby producing a fail safe condition.

REFERENCES:
patent: 2030085 (1936-02-01), Woodberry
patent: 2469352 (1949-05-01), Lauritsen
patent: 3532057 (1970-10-01), Aubrey
patent: 3583321 (1971-06-01), Anderson et al.

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