Fluid sprinkling – spraying – and diffusing – Conduit or nozzle attached irrigation-type decelerator
Patent
1982-12-01
1986-03-04
Kashnikow, Andres
Fluid sprinkling, spraying, and diffusing
Conduit or nozzle attached irrigation-type decelerator
A01G 2502
Patent
active
045736405
ABSTRACT:
An irrigation emitter unit comprises an elongated body member having formed in a first surface thereof an elongated groove formed with a pair of oppositely directed flow resisting substantially triangular baffles, the groove having an inlet end and an outlet end, there being furthermore formed in the first surface a recessed cavity of elongated shape and being of extended dimensions as compared to the width of the groove, the outlet end of said groove communicating with the cavity so that the groove extends out of the cavity and is located on one side thereof, there being formed in the base of the cavity an outlet aperture extending to a second and opposite surface of the body member and having a rim area substantially less than that of the recessed cavity, a resiliently flexible membrane of substantially elongated shape juxtaposed with respect to the surface so as to be pressed sealingly thereagainst solely under the influence of fluid pressure and so as to define, with said groove, an elongated flow reducing flowpath; with the groove inlet a flowpath inlet; and with the cavity an outlet control chamber and communication being effected between an irrigation supply and said flowpath inlet and so as to allow for the exertion of the fluid pressure on the membrane; the arrangement being such that upon the fluid pressure acting on the membrane exceeding the fluid pressure in the outlet chamber by a predetermined amount, the membrane flexes elastically towards the outlet aperture so as to define, with a rim of the outlet aperture, a restricted outflow path thereby limiting variations in the outflow rate.
REFERENCES:
patent: 3777980 (1973-12-01), Allport
patent: 3807430 (1974-04-01), Keller
patent: 3979070 (1976-09-01), Lemelshtrich
patent: 3998427 (1976-12-01), Bentley
Hydro-Plan Engineering Ltd.
Kashnikow Andres
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