Fluid sprinkling – spraying – and diffusing – Conduit or nozzle attached irrigation-type decelerator
Patent
1977-12-09
1979-11-06
Marbert, James B.
Fluid sprinkling, spraying, and diffusing
Conduit or nozzle attached irrigation-type decelerator
239547, 239107, B05B 1502
Patent
active
041733096
ABSTRACT:
Fluid flow control devices are described particularly useful as drip irrigation emitters provided with flow regulation to reduce their pressure-sensitivity, thereby enabling them to be used in long lines and in undulating terrain. The disclosed devices include a first flexible plastic strip bonded on one surface to a second plastic strip along bond lines defining a pressure-dropping passageway. A third plastic surface is bonded to the opposite surface of the first flexible plastic strip along bond lines defining therewith a static pressure chamber in which the first flexible plastic serves as a common wall with the chamber and the passageway for at least part of the length of the passageway. Thus variations in the velocity of the fluid through the pressure-dropping passageway causes the common wall to be flexed to vary the cross-sectional area of the passageway and thereby to regulate the fluid flow therethrough. Both linear-source emitters and point-source emitters are described.
REFERENCES:
patent: 3567134 (1971-03-01), Smith
patent: 3896999 (1975-07-01), Barragan
patent: 4058257 (1977-11-01), Spencer
Barish Benjamin J.
Marbert James B.
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