Deployment sequencer

Details Deployment sequencer Deployment sequencer

1982-06-03

1984-05-15

Blix, Trygve M.

Aeronautics and astronautics

Safety lowering devices

Parachutes

244122A, 244141, 244147, 244149, 244152, 244138R, 244122AE, 318345G, 318345H, B64D 1756, B64D 1758

Patent

active

044483740

ABSTRACT:
A parachute deployment sequencer includes two sequencer systems in electromagnetic shielding housings. Each housing contains two bellows connected to pitot tubes, a third bellows for measuring ambient pressure and three switch contact sets connected in series, each contact set being operated by one of the bellows. Each housing also contains a battery actuated by seat ejection and a deployment firing circuit with a series switch circuit in between. After ejection, deployment is initiated when all three switches are closed.

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patent: 3862731 (1975-01-01), McIntyre
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