Fluid handling – Flow affected by fluid contact – energy field or coanda effect – Means to regulate or vary operation of device
Patent
1977-02-15
1978-05-02
Shapiro, Jacob
Fluid handling
Flow affected by fluid contact, energy field or coanda effect
Means to regulate or vary operation of device
1375133, 138 45, 239145, 239542, E02B 1300, F16D 100
Patent
active
040867749
ABSTRACT:
A drip irrigation system is disclosed wherein individual drip irrigation tubes are fed from a header by means of a flow controller which feeds water to the irrigation tube at an essentially uniform rate over a wide variety of pressures in the header. Generally the flow controller will be capable of maintaining the flow therethrough within .+-. 15% of a predetermined value within a pressure variation of from 3 to 60 psi.
REFERENCES:
patent: 3837363 (1974-09-01), Meronek
patent: 3912165 (1975-10-01), Pira
patent: 3939875 (1976-02-01), Osborn et al.
E. I. Du Pont de Nemours and Company
Shapiro Jacob
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