Flow-control device

Details Flow-control device Flow-control device

1975-10-17

1977-07-26

Blunk, Evon C.

Fluid sprinkling, spraying, and diffusing

Conduit or nozzle attached irrigation-type decelerator

239547, 138 45, B05B 130

Patent

active

040377911

ABSTRACT:
A pressure compensated emitter device for controlling rate of water discharge in a drip irrigation emitter tube, wherein the tube is of resilient material and is partly contained within a plenum, wherein an increase pressure results in a reduction of tube diameter. The tube may contain a core of copper or other metal which will inhibit root growth in the vicinity of the discharge orifice.

REFERENCES:
patent: 2449731 (1948-09-01), Therrien
patent: 2764183 (1956-09-01), Gollehon
patent: 3767124 (1973-10-01), Spencer
patent: 3779468 (1973-12-01), Spencer
patent: 3799441 (1974-03-01), Delmer
patent: 3815636 (1974-06-01), Menzel
patent: 3899136 (1975-08-01), Harmony

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