System and method for maintaining a swimming pool cover drained

Details System and method for maintaining a swimming pool cover drained System and method for maintaining a swimming pool cover drained

1987-02-25

1989-08-08

Recla, Henry J.

Baths, closets, sinks, and spittoons

Pool type

Accessory

4498, 4508, 4509, 137132, 137386, 137392, E04H 318

Patent

active

048539848

ABSTRACT:
In a drainage system for maintaining a swimming pool cover drained of accumulated precipitation, a pump with its intake is disposed in a fluid trap defined by an upper surface of the swimming pool cover. A discharge port of the pump is disposed outside of the fluid trap. A sensor is disposed in a flow path of the pump for detecting the presence of fluid flow therethrough, while a clock unit is operatively connected to the pump for periodically operating the pump for a ten-second interval. A control circuit continues to operate the pump beyond the ten-second interval upon the detection by the sensor of fluid flow through the pump at the end of the ten-second interval. In that case, operation of the pump is terminated only upon a cease of fluid flow through the pump.

REFERENCES:
patent: 2810350 (1957-10-01), MacWilliams
patent: 3184764 (1965-05-01), West
patent: 3377632 (1968-04-01), Peterson
patent: 3579657 (1971-07-01), Gurrieri
patent: 4318421 (1982-05-01), Ward
patent: 4361522 (1982-11-01), Goettl
patent: 4380091 (1983-04-01), Lively
patent: 4406300 (1983-09-01), Wilson
patent: 4421643 (1983-12-01), Frederick
patent: 4445238 (1984-05-01), Maxhimer
patent: 4505643 (1985-03-01), Millis et al.
patent: 4541446 (1985-09-01), Hogan
patent: 4551068 (1985-11-01), Boudreaux

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