Fluid sprinkling – spraying – and diffusing – Processes
Patent
1979-07-06
1981-06-23
Kashnikow, Andres
Fluid sprinkling, spraying, and diffusing
Processes
137883, 137885, 137 783, 239 64, 239 66, 239207, 239570, 239DIG15, A01G 2516
Patent
active
042745837
ABSTRACT:
An irrigation system and method is disclosed having a water supply source for providing water under pressure to a plurality of dispensing devices located at spaced locations. The irrigation system and method comprises a distribution conduit grid in fluid communication with the water supply source and defining a closed conduit loop, thereby providing water flow upon demand within the distribution conduit in more than one direction. The distribution conduit grid is composed of arterial members formed in a closed conduit loop for supplying water to a plurality of dispensing conduit members, each dispensing conduit member having its ends interconnected between two spaced locations on the arterial conduit members, thereby providing water flow into the dispensing conduit members from more than one direction. The dispensing devices are mounted on the dispensing conduit members in water supply relation. The dispensing devices are operated between open and closed positions by a water operated pilot valve. The water operated pilot valve is in turn controlled by a moisture responsive switch which is dependent upon air being passed or not passed through a ceramic material whose ability to pass air depends upon its moisture content. In addition, the water operated pilot valve is kept in the closed position by a pressure responsive switch which prevents opening of the water operated pilot valve except when water pressure at the water operated pilot valve is equal to or in excess of a predetermined level.
REFERENCES:
patent: 1494497 (1924-05-01), May
patent: 3831681 (1974-08-01), Livingston
patent: 3948285 (1976-04-01), Flynn
patent: 3981446 (1976-09-01), Hunter
Kashnikow Andres
The Toro Company
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