Dispensing – Fluid flow discharge
Patent
1988-05-10
1989-10-10
Skaggs, H. Grant
Dispensing
Fluid flow discharge
406118, 406146, 406174, B05B 700
Patent
active
048725986
ABSTRACT:
An apparatus for dispersing duct material into the atmosphere at low concentration levels and substantially uniform rates, wherein the apparatus has a tank, a fluidizer positioned in a lower portion of the tank, an air feed communicating with the fluidizer, a discharge port in an upper portion of the tank, a tubular densifier mounted substantially vertically in the tank and extending from a lower portion thereof to adjacent the port, the densifier having an air inlet adjacent its lower end and an outlet adjacent its upper end in direct and immediate communication with the port, and, an air feed communicating with the inlet, the densifier having longitudinally spaced passages therein for the transfer of dust material from the tank into the densifier for transportation to the discharge port.
REFERENCES:
patent: 2675275 (1954-04-01), Burtis et al.
patent: 2792971 (1957-05-01), Kaiser
patent: 2813755 (1957-11-01), Payne et al.
patent: 3179378 (1965-04-01), Zenz et al.
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