Gas and liquid contact apparatus – Fluid distribution – Pumping
Patent
1980-01-24
1981-03-10
Chiesa, Richard L.
Gas and liquid contact apparatus
Fluid distribution
Pumping
13710127, 137143, 261 70, 261DIG46, B01F 304
Patent
active
042553610
ABSTRACT:
A pump, siphon drain valve, and at least the float portion of a float controlled shutoff valve are located in a comparatively small water reservoir tank which is dependingly 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 and prime the siphon drain valve. When the pump and water inlet supply are both shutoff, the tank completely drains, and when the pump alone is shutoff, tank draining, flushing and refilling is accomplished.
REFERENCES:
patent: 2031055 (1936-02-01), McKinney
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: 3471123 (1969-10-01), Carlson et al.
patent: 3476673 (1969-11-01), Stiles
patent: 3643930 (1972-02-01), Schulze, Sr.
patent: 3754741 (1973-08-01), Whitehurst et al.
patent: 4129140 (1978-12-01), Carlin
Chiesa Richard L.
Haynes, Jr. Herbert E.
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