Ballast tank for buoyancy compensation

Details Ballast tank for buoyancy compensation Ballast tank for buoyancy compensation

1992-05-26

1993-06-22

Corbin, David H.

Hydraulic and earth engineering

Diving

Suit or accessory therefor

405185, B63C 1130

Patent

active

052211614

ABSTRACT:
A ballast tank for buoyancy compensation for scuba diving which permits greater control through the use of a hydraulic induced vacuum. The apparatus includes a rigid tank 10 and pistons 12 and 20 which are controlled by manually operated hydraulic hand pump 32 and a pressure relief valve 26 so that desired displacement is achieved and maintained regardless of external water pressure.

REFERENCES:
patent: 3605418 (1971-09-01), Levine
patent: 3643449 (1972-02-01), Murphy
patent: 4472082 (1984-09-01), Kroling
patent: 4872783 (1989-10-01), Greenwood

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