Automatic valve for use with pool cleaning devices

Details Automatic valve for use with pool cleaning devices Automatic valve for use with pool cleaning devices

1985-05-24

1987-02-17

Schwadron, Martin P.

Fluid handling

Self-proportioning or correlating systems

Self-controlled branched flow systems

13762414, 137907, 251254, 239572, G05D 1100

Patent

active

046432175

ABSTRACT:
An automatic valve is disclosed for controlling the direction of fluid flow. The valve is particularly suited for use with automatic pool cleaning systems to alternately direct fluid flow to the filtration system of an automatic pool cleaner. The valve includes a primary conduit and a branch segment to define an alternate path for fluid flow. A reciprocating piston is mounted within the branch segment. Indexing is provided by a first cammed surface, formed at one end of the piston which includes a plurality of slots. The slots are selectively engaged with a stop pin. The condition of the valve is determined by the length of the particular slot engaged with the stop pin. A spring is provided for biasing the piston out of engagement with the stop pin when the fluid flow is interrupted. In one embodiment of the subject valve, the volume and pressure of the fluid flow are automatically controlled.

REFERENCES:
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patent: 4488476 (1984-12-01), Diel
patent: 4526186 (1985-07-01), Frentzel

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