Measuring and testing – Miscellaneous
Patent
1974-07-03
1976-01-20
Queisser, Richard C.
Measuring and testing
Miscellaneous
G01F 2314
Patent
active
039330494
ABSTRACT:
A decompression analog computer and indicator includes an ambient pressure sensing chamber exposed to hydrostatic pressure as experienced by the diver. The pressure in sensing chamber produces a flow of fluid between the sensing chamber and a pair of parallel connected second chambers via the intermediary of first and second diffusion membranes introducing a delay to simulate different tissues of the body. Each of the second chambers has a movable wall portion operatively connected to a spring biased pressure responsive indicating piston. The indicating pistons move to and fro in a track overlying at indicating scale visible to the diver. The indicators indicate uptake and release of nitrogen by different tissues within the body and indicate to the diver when decompression is necessary.
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Hollingsworth Ashley J.
Shamlian Ralph B.
Farallon Industries, Inc.
Queisser Richard C.
Roskos Joseph W.
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