Pressure probe for safety-arming device

Details Pressure probe for safety-arming device Pressure probe for safety-arming device

1978-05-26

1980-02-19

Brown, David H.

Ammunition and explosives

Igniting devices and systems

Arming devices

89 1B, F42C 1500

Patent

active

041888863

ABSTRACT:
An air pressure sensing probe for providing static-dynamic differential air ressure to operate a guided missile warhead safety-arming device is disclosed. The probe assembly is hermetically sealed to keep the device free of dirt and moisture during storage. An electrically initiated squib, fired at a predetermined time after missile launch, supplies gas pressure to the base of the probe which acts as a piston. The probe breaks a tip seal, extends laterally out from the missile, and wedges into the erect position. The base of the probe contacts a sliding punch which severs seals from two air pressure conduits and aligns air passageways with static and dynamic pressure ports in the probe. Differential air pressure is thus fed to a safety-arming device which utilizes pneumatic operation.

REFERENCES:
patent: 1883583 (1932-10-01), Cole
patent: 2246510 (1941-06-01), Diehl
patent: 3382805 (1968-05-01), Swaim
patent: 3643508 (1972-02-01), Schneider
patent: 3670656 (1972-06-01), Donahue et al.
patent: 3938443 (1976-02-01), Wolski
patent: 3960086 (1976-06-01), Fisher
patent: 3961577 (1976-06-01), O'Steen
patent: 3968751 (1976-07-01), Palifka
patent: 3973501 (1976-08-01), Briggs
patent: 3990370 (1976-11-01), Campagnolo et al.

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