Combination economizer valve and locking means for oxygen supply

Details Combination economizer valve and locking means for oxygen supply Combination economizer valve and locking means for oxygen supply

1986-08-18

1987-05-12

Weakley, Harold W.

Fluid handling

Systems

Dividing into parallel flow paths with recombining

137613, 137510, G05D 706

Patent

active

046641467

ABSTRACT:
A combination device for flow-regulation in an oxygen supply system, providing in a unitary device providing both an economizer valve which automatically and safely vents oxygen when the patient's demand or usage is less than the amount being constantly produced by the heat-induced evaporation (NER) of liquid oxygen in a supply reservoir, but automatically and economically stops the venting when the usage demand utilizes at least as much as the NER, in combination with a lockable flow-regulating oxygen-supply valve which can be pre-set to permit only a certain maximum flow rate of the oxygen although permitting the flow to be moderated to less than that maximum flow rate, thus giving an oxygen-therapy patient some control of oxygen flow-rate although preventing overdose.

REFERENCES:
patent: 1630741 (1927-05-01), Griffiths
patent: 1697865 (1929-01-01), Hahn
patent: 3152589 (1964-10-01), Kugler
patent: 4140297 (1979-02-01), Bussell
patent: 4142523 (1979-03-01), Stegeman

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