Diver information system

Details Diver information system Diver information system

1974-09-27

1976-11-23

Queisser, Richard C.

Measuring and testing

Miscellaneous

235184, G06G 760, G01L 1300

Patent

active

039929485

ABSTRACT:
A system for providing information to a scuba diver relating to his position and movement in a body of water, including electronic circuitry for generating electrical signals reflective of the pressure over a period of time, and for comparing such signals with signals reflective of predetermined maximum rates of pressure change required for safe ascent. The system warns the diver when his rate of ascent exceeds the maximum allowable rate. The circuitry of the system generates additional signals for informing the diver of his direction of vertical movement, his down time, his depth, and the water temperature.

REFERENCES:
patent: 3457393 (1969-07-01), Stubbs et al.
patent: 3649871 (1972-03-01), Klein et al.
patent: 3679894 (1972-07-01), Smith
patent: 3681585 (1972-08-01), Todd
patent: 3711779 (1973-01-01), Allington
patent: 3726138 (1973-04-01), Kosakowski et al.
patent: 3746850 (1973-07-01), Moore et al.
patent: 3753133 (1973-08-01), Shumate, Jr.
patent: 3790855 (1974-02-01), Hillman, Jr.

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