Automatic diluter/demand oxygen regulator adapted for chemical o

Details Automatic diluter/demand oxygen regulator adapted for chemical o Automatic diluter/demand oxygen regulator adapted for chemical o

1980-09-22

1982-06-22

Chambers, A. Michael

Fluid handling

Ambient condition change responsive

Atmospheric

12820426, 12820429, A61M 1500

Patent

active

043357350

ABSTRACT:
An oxygen regulator for controlling the flow of breathing oxygen and uncontaminated air at various altitudes includes a balanced oxygen valve (20) and a balanced air valve (50) which cooperate with a dilution aneroid valve (62) to provide breathable mixture whose oxygen percentage increases with altitude to a predetermined altitude. Above that altitude one hundred percent oxygen is provided. A gas loading aneroid valve (110) operates to increase the oxygen pressure in accordance with altitude over a range of altitude.

REFERENCES:
patent: 3075957 (1963-04-01), Veit et al.
patent: 3077881 (1963-02-01), Sprague
patent: 3179119 (1965-04-01), Fitt et al.
patent: 3474812 (1969-10-01), Robertson
patent: 3509895 (1970-05-01), Henneman

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