Adjustable check valve for use in an oxygen regulator

Details Adjustable check valve for use in an oxygen regulator Adjustable check valve for use in an oxygen regulator

1975-12-08

1977-04-19

Cohan, Alan

Fluid handling

Ambient condition change responsive

Underwater

137DIG9, 137114, 13754315, A62B 900

Patent

active

040182436

ABSTRACT:
An adjustable check valve for use in an oxygen regulator to establish limits at which a resiliently biased disc moves away from a seat to allow air to enter an atmospheric chamber. A regulator is connected to a linkage which operates an air flow valve and an oxygen proportioning flow valve. The regulator is responsive to inlet oxygen pressure such that a change in altitude causes a corresponding change in flow relationship of air through the air valve and oxygen through the oxygen valve.

REFERENCES:
patent: 2396716 (1946-03-01), Meidenbauer et al.
patent: 2436522 (1948-02-01), Meidenbauer
patent: 3509895 (1970-05-01), Henneman

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