Fluid handling – Self-proportioning or correlating systems – Self-controlled branched flow systems
Patent
1993-10-06
1994-10-04
Hepperle, Stephen M.
Fluid handling
Self-proportioning or correlating systems
Self-controlled branched flow systems
15 17, 137907, F16K 1700
Patent
active
053517091
ABSTRACT:
A control valve for use in a swimming pool containing an automatic pool cleaner is described. The valve comprises a main water passage having an inlet port in a cranked inlet portion and an outlet port. A valve chamber extends from the main passage. It has a relief valve and an outlet through its side wall. A by-pass passage connects the outlet to the main water passage. A valve member sensitive to the pressure in the by-pass passage is located within the chamber and is biassed by a spring into a closed position to close off the relief port. When the pressure in the by pass passage falls, the valve member is drawn into the open position in which it controls the opening of both the relief valve and the outlet in dependence upon its position.
REFERENCES:
patent: 1908357 (1933-05-01), Hornbruch
patent: 4368751 (1983-01-01), Chauvier
patent: 4570660 (1986-02-01), Chauvier
patent: 4643217 (1987-02-01), Frentzel
patent: 4790344 (1988-12-01), Chauvier
Bednarek Michael D.
Hepperle Stephen M.
Prelude Pool Products C C
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