Drogue release apparatus

Details Drogue release apparatus Drogue release apparatus

1976-02-27

1977-07-05

Blix, Trygve M.

Aeronautics and astronautics

Safety lowering devices

Parachutes

9 8R, B64D 1738

Patent

active

040335291

ABSTRACT:
Drogue release apparatus for air-dropped sonobuoys is disclosed in which the drogue is attached to a spring-loaded release unit which is carried at the top surface of the sonobuoy, with an ejection spring positioned between the release unit and the top of the sonobuoy to eject the release unit upon water impact. A second spring acts normally as a detent to prevent ejection and is freed to permit ejection of the release unit upon impact by the momentary downward travel of the release unit as a result of the impact.

REFERENCES:
patent: 2371640 (1945-03-01), Manson et al.
patent: 2521516 (1950-09-01), Heidman et al.
patent: 2526791 (1950-10-01), Wroblewski
patent: 2880687 (1959-04-01), Kilvert
patent: 3079188 (1963-02-01), Oswold
patent: 3921120 (1975-11-01), Widenhofer

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