Table correlating device for scuba divers

Details Table correlating device for scuba divers Table correlating device for scuba divers

1981-04-08

1983-01-18

Fuller, Benjamin R.

Registers

Calculators

Single axis

235 87R, G06C 300, G06C 2700

Patent

active

043693580

ABSTRACT:
An apparatus used to correlate and selectively read information from tables dealing with the extent of nitrogen absorption in a scuba diver's body. Tables containing information relating to the amount of time a diver spends at various depths, decompression procedures, the surface interval between repetitive dives, and the resultant amount of nitrogen accumulation in the diver's body are attached to an inner tube. Two side-by-side outer tubes, each having sight windows for selective reading of the tables, are arranged concentrically about the inner tube, and are secured in lateral position by end caps attached to the inner tube. Each outer tube is provided with inwardly projecting flanges on each end which serve as bearing surfaces for rotation about the inner tube. The apparatus is preferably slipped over a scuba tank air hose for carrying.

REFERENCES:
patent: 2595153 (1952-04-01), Malmgren
patent: 2958251 (1960-11-01), Calabro
patent: 2970758 (1961-02-01), Abbate
patent: 3058653 (1962-10-01), Des Granges
patent: 3578241 (1971-05-01), Wombough et al.

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