Method and apparatus for mixing gases

Details Method and apparatus for mixing gases Method and apparatus for mixing gases

1977-04-25

1977-12-13

Cohan, Alan

Fluid handling

Processes

With control of flow by a condition or characteristic of a...

137607, 1376242, G05D 1103, G05D 1113

Patent

active

040623734

ABSTRACT:
A method of accurately mixing gases in desired proportions which comprises establishing the gases to be mixed at a uniform pressure; sequentially feeding the gases through a common restrictor for proportionate time periods to give the gas mix desired. The apparatus used includes a pressurizing gas reservoir unit which adjusts all gases to be mixed to have a common pressure; electronically actuated rapid response fluidic interface valves; a common restrictor through which the gases are passed to a receiving and mixing chamber; and timing means controlling the valves to allow gases to be sequentially passed therethrough for pre-set time periods.

REFERENCES:
patent: 3762427 (1973-10-01), Mollering
patent: 3886971 (1975-06-01), Lundsgaard et al.
patent: 3905384 (1975-09-01), Berger

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