Gas and liquid contact apparatus – Fluid distribution – Pumping
Patent
1979-01-29
1980-03-11
Chiesa, Richard L.
Gas and liquid contact apparatus
Fluid distribution
Pumping
261 70, 261DIG46, B01F 304
Patent
active
041928326
ABSTRACT:
A pump, siphon drain valve and float controlled water inlet valve are located in a comparatively small water supply tank which is mounted below an opening formed in the floor pan of an evaporative cooler to locate the cooler's water supply externally of its cabinet and are operative to recirculatingly supply water to the cooler and receive the returning water. The water, which increases in mineral concentration during such recirculation, is periodically drained from the tank by shutting off the pump so that the returning water will elevate the water level in the tank to prime the siphon drain valve. When the pump and water inlet supply are both shut off, the tank completely drains, and when the pump alone is shut off, tank draining, flushing and refilling is accomplished.
REFERENCES:
patent: 1950345 (1934-03-01), Williams
patent: 2646061 (1953-07-01), Bottum
patent: 2828761 (1958-04-01), Weibert, Jr.
patent: 2856166 (1958-10-01), Goettl
patent: 3314080 (1967-04-01), Shilling, Jr.
patent: 3476673 (1969-11-01), Stiles
patent: 3606982 (1971-09-01), Anderson
patent: 3643930 (1972-02-01), Schulze, Sr.
patent: 3754741 (1973-08-01), Whitehurst
patent: 4129140 (1978-12-01), Carlin
Chiesa Richard L.
Haynes, Jr. Herbert E.
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