Automatic parachute release system

Details Automatic parachute release system Automatic parachute release system

1979-11-06

1981-03-03

Blix, Trygve M.

Aeronautics and astronautics

Safety lowering devices

Parachutes

244151B, B64D 1730

Patent

active

042536286

ABSTRACT:
A parachute release arrangement which is mounted on the parachute buckle lizes a pair of water sensors that are activated when they are immersed in sea water. Activation of one sensor results in the connection of a battery to a DC-to-DC converter which raises the battery voltage to a substantially higher level for charging a storage capacitor. If the other sensor is also activated, this storage capacitor is subsequently discharged through an electrical explosive device when the voltage across it reaches a predetermined value. The resultant explosive force disengages a release lever in the buckle from the parachute strap and allows the detachment of the parachute. A checkout circuit is provided for monitoring the standby status of the control circuit.

REFERENCES:
patent: 3545271 (1970-12-01), Amir et al.
patent: 3602661 (1971-08-01), Liedberg
patent: 3722408 (1973-03-01), Fox et al.
patent: 3922762 (1975-12-01), Turner et al.
patent: 4024440 (1977-05-01), Miller

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