Pumps – Motor driven – Spring or weight motor
Patent
1991-07-03
1993-04-27
Bertsch, Richard A.
Pumps
Motor driven
Spring or weight motor
417 92, 417101, F64F 1100
Patent
active
052057208
ABSTRACT:
A method and apparatus for producing compressed air includes sealing air in a container capable of reducing its volume by external hydraulic pressure. A weight having a larger specific gravity than water is attached to the container to sink the container deep under water. Compressed air is produced when the volume of the container is reduced by hydraulic pressure, and is transferred into a recovery vessel connected to the container via a check valve. The weight is then separated from the container to cause the container to float on the water by the action of buoyancy. The compressed air can then be recovered from the recovery vessel.
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"Waves In Fluids", James Lighthill, Cambridge University Press.
Bertsch Richard A.
Korytnyk Peter
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