Proportional control system for foundry sand mixing device

Details Proportional control system for foundry sand mixing device Proportional control system for foundry sand mixing device

1977-01-06

1979-02-20

Knowles, Allen N.

Dispensing

Plural sources, compartment, containers and/or spaced jacket

Three or more diverse sources

222134, 222135, 366162, 366325, B01F 1502, B22C 518

Patent

active

041402464

ABSTRACT:
Means for delivering a foundry sand mixture at a variable rate, the proportions of the ingredients in the mixture being constant as the total quantity varies. A single variable speed motor comprises the sole drive for separate components supplying different solid and liquid ingredients to the mixer itself, which has an independent drive. The machine components include a conveyor, an auger, and at least one variable speed pump.

REFERENCES:
patent: 2948519 (1960-08-01), Bradshaw et al.
patent: 3006615 (1961-10-01), Mason
patent: 3128997 (1964-04-01), Young
patent: 3178066 (1965-04-01), Martin
patent: 3682448 (1972-08-01), Kedzior

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