Ordnance – Bomb – flare and signal dropping – Bomb displaced from exterior of plane
Patent
1979-02-28
1981-04-28
Brown, David H.
Ordnance
Bomb, flare and signal dropping
Bomb displaced from exterior of plane
89 1F, 89 1806, 89 1818, F41F 502, B64D 104
Patent
active
042638356
ABSTRACT:
A pneumatic restraint and ejection system for a multiple sonobuoy launcher aving a single plenum communicating through separate clack valves to the inboard ends of a plurality of launcher tubes and through separate girdle valves to inflatable girdles about the launch tubes. After sonobuoys are inserted into the launch tubes, the plenum is charged with compressed air with the clack and girdle valves positioned to impart an ejection force on the backs and a longitudinal restraining force on sides of the sonobuoys. A sonobuoy is ejected by actuating the girdle valve to shut off the plenum air to the girdle and to exhaust the air in the girdle. As the sonobuoy leaves its launch tube, the air behind the sonobuoy expands causing a sudden differential pressure between the plenum and the tube to cause the clack valve to close and prevent loss of plenum pressure through the empty launch tube. In one embodiment, the launch tube includes a solonoid actuated latch at the discharge end which secures the sonobuoy therein. Actuation of the solonoid simultaneously releases the latch and operates the girdle valve. In another embodiment, three sonobuoys are loaded in tandem within a single launch tube. Three pressure chambers and girdles are separately actuated by solonoid-actuated girdle valves for sequential ejection of the sonobuoys.
REFERENCES:
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patent: 3158062 (1964-11-01), Feiler
patent: 3451306 (1969-06-01), Lagerstrom et al.
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patent: 3808941 (1974-05-01), Biggs
patent: 4019421 (1977-04-01), Strom
patent: 4026188 (1977-05-01), Woodruff et al.
patent: 4040334 (1977-08-01), Smethers
patent: 4164887 (1979-08-01), Ouellette
Brown David H.
Hansen Henry
Sciascia R. S.
The United States of America as represented by the Secretary of
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