Baths – closets – sinks – and spittoons – Pool type – Construction details
Patent
1983-07-11
1985-03-12
Artis, Henry K.
Baths, closets, sinks, and spittoons
Pool type
Construction details
4490, E04H 316, E04H 318
Patent
active
045035733
ABSTRACT:
A swimming pool water circulation system having a two-state valve which is alternately operated for predetermined lengths of time in a first state wherein water flow through the system is at a relatively low pressure high volume flow rate for efficient water filtration and in a second state wherein the water flows through the system to a pool cleaning device or system at a relatively high pressure low volume flow rate for efficient operation of the pool cleaning system or device.
REFERENCES:
patent: 3623165 (1971-11-01), Whittall, Jr.
patent: 4185333 (1980-01-01), Ortega
patent: 4348192 (1982-09-01), Pansini
patent: 4371003 (1983-02-01), Goguen
patent: 4378254 (1983-03-01), Chauvier
Artis Henry K.
Haynes, Jr. Herbert E.
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