Measuring and testing – Liquid level or depth gauge – Hydrostatic pressure type
Patent
1980-07-29
1982-05-04
Yasich, Daniel M.
Measuring and testing
Liquid level or depth gauge
Hydrostatic pressure type
73432R, G01F 2314
Patent
active
043275842
ABSTRACT:
A decompression meter includes a scale having a first section corresponding to conditions in which it is unnecessary for an ascending diver to carry out decompression halts, and a second section corresponding to conditions in which decompression halts are necessary. The second section of the scale is carried by a movable element which can be displaced along the first scale section by means of a manually operable member. Means are provided for indicating the position of the movable element along the first scale section. The position in which the movable element is set is selected by the diver at least on the basis of the maximum depth reached and, optionally, also on the basis of the dwell time at this maximum depth as well as possibly also on the basis of the intervening time between a preceding dive and the current dive.
REFERENCES:
patent: 3058653 (1962-10-01), Des Granges
patent: 3121333 (1964-02-01), Alinari
patent: 3578241 (1971-05-01), Wombough
patent: 3777573 (1973-12-01), Alinari
patent: 3831449 (1974-08-01), MacNiel et al.
patent: 3919888 (1975-11-01), Muster et al.
patent: 3992948 (1976-11-01), D'Antonio et al.
patent: 3992949 (1976-11-01), Edmondson
patent: 4056010 (1977-11-01), Alinari
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