Vacuum sleeve valve

Details Vacuum sleeve valve Vacuum sleeve valve

1984-10-31

1986-02-18

Schwadron, Martin P.

Fluid handling

Self-proportioning or correlating systems

Self-controlled branched flow systems

137508, 137907, G05D 1103

Patent

active

045706603

ABSTRACT:
A valve for controlling the flow of water to a filter of a swimming pool has a tubular member with a main inlet opening at one end connectable to a suction hose, an outlet opening at its other end connectable to a suction source, an auxiliary opening intermediate its ends and a communication opening also intermediate its ends. A sleeve is located about the tubular member to be slidable therealong and is positioned on one side of the communication opening. A flexible bellows is secured at one end to the sleeve and at its other to the tubular member on the other side of the communication opening to define a varible volume chamber in communication with the interior of the tubular member via the communication opening. A closure is located in the auxiliary opening and is fast with the sleeve to be slidable therewith. A spring urges the sleeve into a position in which the auxiliary opening is substantially closed.

REFERENCES:
patent: 1908357 (1933-05-01), Hornbruch
patent: 2638107 (1953-05-01), Teague, Jr.
patent: 2969800 (1961-01-01), Skiruin et al.
patent: 4378254 (1983-03-01), Chauvier

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