Drip irrigation system
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United States of America Patent
Stats
-
Dec 29, 1981
Issued Date -
N/A
app pub date -
Nov 26, 1979
filing date -
Nov 24, 1977
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A drip irrigation system comprising a thermoplastic conduit having substantially flat, discrete emitter units heat welded to axially spaced apart locations of an inner surface of the conduit adjacent outlet apertures formed in the conduit, the emitter units being preferably provided with an elastomeric membrane exposed to the throughflow pressure in the conduit for the purpose of stabilising the output rate of each emitter unit vis-a-vis possible flow pressure variations in the conduit.
First Claim
Family
International Classification(s)
Cited Art Landscape
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