Fluid handling – Liquid level responsive or maintaining systems – By weight of accumulated fluid
Patent
1985-11-25
1987-04-07
Walton, George L.
Fluid handling
Liquid level responsive or maintaining systems
By weight of accumulated fluid
137414, 137426, 4508, 251 46, F16K 3134
Patent
active
046552430
ABSTRACT:
A device that maintains the water level of a swimming pool within acceptable limits. The device includes a valve member that has a valve chamber and a diaphragm chamber. The valve member is held in submerged relation to the water level in the pool by a weighted member that is provided with a stabilizer so that the correct position of the submerged valve member is maintained at all times. A garden hose is connected at one end to a source of water under pressure and its other end is connected to the valve chamber. One side of the diaphragm is exposed to the water in the pool and its other side is exposed to atmospheric pressure so that when the pool level changes, the change is detected by the diaphragm. An on-off valve in the valve chamber is normally closed so that a valve at the water source may be left in its open position at all times. A drop in the water level displaces the diaphragm and the displacement of the diaphragm opens the valve in the valve chamber so that water from the water source is admitted into the pool. The valve in the valve chamber closes when the water level rises to a desired level, which rise is detected by the diaphragm.
REFERENCES:
patent: 2685301 (1954-08-01), Dreier
patent: 3837015 (1974-09-01), Whitaker
patent: 3895645 (1975-07-01), Johnson
patent: 4065095 (1977-12-01), Johnson
patent: 4180096 (1979-12-01), Johnson
patent: 4240606 (1980-12-01), Johnson
Smith Ronald E.
Walton George L.
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