Method and apparatus for mixing gases

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

1975-02-07

1977-04-26

Cohan, Alan

Fluid handling

Processes

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

137607, 1376242, G05D 1113

Patent

active

040195236

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 an isobaric 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 rceiving and mixing chamber; and timing means controlling the valves to allow gases to be sequentially passed therethrough for pre-set time periods

REFERENCES:
patent: 1218543 (1917-03-01), Gattermeir
patent: 3717177 (1973-02-01), Glesmann
patent: 3749111 (1973-07-01), Dobritz
patent: 3762427 (1973-10-01), Mollering
patent: 3830256 (1974-08-01), Cox
patent: 3886971 (1975-06-01), Lundsgaard et al.
patent: 3895642 (1975-07-01), Bird et al.
patent: 3905384 (1975-09-01), Berger

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