Pressure compensating emitters for drip irrigation systems

Details Pressure compensating emitters for drip irrigation systems Pressure compensating emitters for drip irrigation systems

1988-04-21

1990-11-20

Kashnikow, Andres

Fluid sprinkling, spraying, and diffusing

Fluid pressure responsive discharge modifier* or flow...

Fuel injector or burner

138 43, 239542, B05B 130

Patent

active

049712535

ABSTRACT:
A cylindrical, or part cylindrical, diaphragm for a drip emitter is disclosed, the diaphragm having a depressed labyrinthine path in the outer face thereof. The path is constituted by a groove, there being one or more holes in the diaphragm which place one end of the groove in communication with the interior of the diaphragm. The diaphragm has a thinner area which forms a distortable membrane. The other end of the groove communicates with the space which lies radially outwardly of the membrane. The diaphragm is placed in a cylindrical holder which has a hole in the walling thereof. Said membrane extends over the hole in the holder.

REFERENCES:
patent: 3851896 (1974-12-01), Olson
patent: 4022384 (1977-05-01), Hoyle et al.
patent: 4254791 (1981-03-01), Bron
patent: 4385727 (1983-05-01), Spencer
patent: 4413786 (1983-11-01), Mehovdar
patent: 4533083 (1985-08-01), Tucker

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