Sprinkler spray head

Fluid sprinkling – spraying – and diffusing – Plural interchangeable discharge modifiers – outlet... – Discharge modifier upstream of terminal outlet

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Details

239443, 239504, 239505, 239518, 239DIG1, B05B 116, B05B 126

Patent

active

061586757

ABSTRACT:
An improved sprinkler spray head is provided for delivering irrigation water to surrounding vegetation, wherein the spray head delivers the irrigation water in the form of one or more discrete streams of selected pattern over a broad range of water supply pressures and substantially without undesirable pattern distortion such as atomization or fogging. The spray head comprises an upper deflector plate mounted on a base ring which is adapted in turn for mounting onto the upper end of a water supply riser. The deflector plate and base ring cooperatively define multiple internal flow paths each including a selectively opened flow port for water flow from the riser to an associated one of a plurality of spray nozzles. Each internal flow path defines a relatively narrow metering orifice for metered flow of water to an elongated flow channel open at one side to a relatively large plenum chamber, with an upper or downstream end of the flow channel being coupled to the associated spray nozzle which delivers the water flow outwardly in a selected pattern over the surrounding terrain substantially without spray pattern distortion over a relatively broad range of low to high water supply pressures.

REFERENCES:
patent: 3762650 (1973-10-01), Radecki
patent: 4189099 (1980-02-01), Bruninga
patent: 4220283 (1980-09-01), Citron
patent: 4625917 (1986-12-01), Torney
patent: 4739934 (1988-04-01), Gewelber
patent: 5050800 (1991-09-01), Lamar
patent: 5642861 (1997-07-01), Ogi et al.

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