Time-depth integrator

Details Time-depth integrator Time-depth integrator

1981-01-12

1982-09-21

Woodiel, Donald O.

Measuring and testing

Miscellaneous

73300, G01F 2314

Patent

active

043500420

ABSTRACT:
A time-depth integrator for divers to indicate when a diver is approaching or has reached the maximum safe time limit for a dive without requiring decompression procedures when surfacing includes an evacuated chamber with an elongate channel communicating therewith. The channel has a breakable seal and contains an orifice so that when the seal is broken under water, water flows through the orifice into and along the channel to the evacuated chamber. Indications along the length of the channel show how far water has progressed in the channel and indicate the maximum safe limit and approach thereto.

REFERENCES:
patent: 3777573 (1973-12-01), Alinari
patent: 4056010 (1977-11-01), Alinari
patent: 4098110 (1978-07-01), Bowden

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