Gas mixing valve
AssigneeSjumek, Sjukvardsmekanik HB
InventorLennart Valentin Andersson
Life of this patent
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Abstract
Gas mixing valve having separate inlets for two gases, a common outlet and a dispensing device located between said inlets and the outlet, and a reflux preventing valve, said dispensing device consisting of an adjustable slide block with a number of functionally parallel-connected gas channels, one end of which is connectable to one or the other inlet and the other end of which is closable under spring action by means of a valve flap common to the gas channels and arranged to open to different extents for different flows but equally for all individual gas channels.
Claims8
A gas mixing valve comprising a housing having two separate inlets and a common outlet, a gas dispensing device located between said inlets and said outlet and comprising an adjustable slide block formed with a plurality of substantially parallel gas channels, each having one end communicating with a selected one of said inlets and an opposite end at the outlet side, a valve flap common to said opposite ends of said channels and being normally biased against said opposite ends of said gas channels to prevent gas flow to said outlet.
Dependencies are inferred from the claim text.