Fluid handling – Self-proportioning or correlating systems – Mixture condition maintaining or sensing
Patent
1978-11-16
1981-03-24
Nilson, Robert G.
Fluid handling
Self-proportioning or correlating systems
Mixture condition maintaining or sensing
137334, 137606, F16K 1900
Patent
active
042574382
ABSTRACT:
Method and apparatus for mixing a carrier gas with a foundry aggregate resin catalyst fluid in which the liquid catalyst fluid is vaporized to a gaseous state and is thereafter mixed with the carrier gas. A proper proportion between the two gases is established by the setting of variable valves which control the flow of the two gases. The setting of the variable valve for the carrier gas establishes a flow rate for that gas at a given load level. The variable valve for the other gas is then set to establish a flow rate for the other gas with the desired proportion between the flow rates of said gases at said given load level. When the gas mixture is drawn upon at said given load level or at reduced load levels, the valves retain their initial relative settings and maintain the desired proportion, regardless of load level.
REFERENCES:
patent: 3369558 (1968-02-01), Hughey
patent: 3726300 (1973-04-01), Chevalier
patent: 3919162 (1975-11-01), Austin
patent: 4105725 (1978-08-01), Ross
patent: 4112515 (1978-09-01), Sandow
patent: 4132260 (1979-01-01), Luber
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