Device for calculating no decompression dive times

Details Device for calculating no decompression dive times Device for calculating no decompression dive times

1993-10-28

1995-03-28

Gellner, Michael L.

Registers

Calculators

Bar

235 70A, 235 78R, G06G 102, G06C 2700

Patent

active

054019427

ABSTRACT:
A new device including a new arrangement of dive tables is disclosed for planning non-decompression dives. The invention utilizes two separate scales, movable relative to one another. The first scale shows the pressure group scale, the bottom time or residual nitrogen scale and surface intervals aligned by relationship to pressure group. The second scale shows depth scales, repetitive dive group, pressure group, and no decompression time limits scale. Windows in the second scale allow the observation of pressure group scales and corresponding bottom time on alignment of bottom time from scale one with depth from the second scale.

REFERENCES:
patent: 1209878 (1916-12-01), Oliver
patent: 3058653 (1962-10-01), Des Granges
patent: 3123291 (1964-03-01), Madry
patent: 3578241 (1971-05-01), Wombough
patent: 4369358 (1983-01-01), Adams
Mosby Lifeline, 1979, p. 269, "Jeppesen" (no month).

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