Underwater buoyancy apparatus

Details Underwater buoyancy apparatus Underwater buoyancy apparatus

1985-02-26

1987-06-23

Basinger, Sherman D.

Ships

Submersible device

Having attitude control

114331, 114 54, 251 28, 251 636, 137 812, B63G 822

Patent

active

046744290

ABSTRACT:
A device for venting gas from an expansible gas chamber (lifejacket, lifting bag, etc.) of an underwater buoyancy apparatus. The device comprises a monitoring device which monitors the rate of ascent of the expansible gas chamber and provides a control signal when the ascent velocity exceeds a predetermined speed. A venting valve assembly controls the venting of gas from the expansible gas chamber and is responsive to the control signal to vent gas reducing the buoyancy of the expansible gas chamber.

REFERENCES:
patent: 2887976 (1959-05-01), Hanna et al.
patent: 3428063 (1969-02-01), Plotkin et al.
patent: 3659299 (1972-05-01), Davidson et al.
patent: 3920033 (1975-11-01), Ferrando
patent: 4029034 (1977-06-01), Mason
patent: 4218040 (1980-08-01), Brakebill

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