Irrigation emitters having reduced sensitivity to clogging

Details Irrigation emitters having reduced sensitivity to clogging Irrigation emitters having reduced sensitivity to clogging

1997-05-01

1998-11-03

Kashnikow, Andres

Fluid sprinkling, spraying, and diffusing

Fluid pressure responsive discharge modifier* or flow...

Fuel injector or burner

239542, 239547, B05B 102

Patent

active

058296867

ABSTRACT:
A drip irrigation emitter defining a flow control passageway having an inlet to communicate with a supply of pressurized water, and an outlet to communicate with a water discharge opening, includes an obstruction formation between the flow control passageway outlet and the water discharge opening effective to produce a relatively small obstruction to the flow in the direction from the flow control passageway outlet to the water discharge opening, and a relatively large obstruction to the flow in the reverse direction such as to reduce the possibility of the entry of external solid particles into the emitter via the water discharge opening.

REFERENCES:
patent: 3998427 (1976-12-01), Bentley
patent: 4177946 (1979-12-01), Sahagun-Barragan
patent: 4366926 (1983-01-01), Mehoudar
patent: 4502631 (1985-03-01), Christen
patent: 4687143 (1987-08-01), Gorney
patent: 4817875 (1989-04-01), Karmeli
patent: 5111996 (1992-05-01), Eckstein
patent: 5236130 (1993-08-01), Hadar
patent: 5400973 (1995-03-01), Cohen

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