Irrigation pipes with dripper units and method of its manufactur

Details Irrigation pipes with dripper units and method of its manufactur Irrigation pipes with dripper units and method of its manufactur

1975-02-10

1976-09-21

Song, Robert R.

Fluid sprinkling, spraying, and diffusing

Conduit or nozzle attached irrigation-type decelerator

B05B 1500

Patent

active

039814521

ABSTRACT:
An irrigation pipe constitutes at predetermined spacings the outer sleeve of an irrigation unit, whose inner part comprises a cylinder with a peripheral helical groove. A method for producing such a pipe comprises feeding said cylinder at predetermined intervals into an extruder having an angular extrusion nozzle head and extruding said pipe around it, and after cooling said pipe sufficiently making at least one aperture therein aligned with the forward end of said groove in said cylinder.

REFERENCES:
patent: 3604728 (1971-09-01), Symcha et al.
patent: 3729142 (1973-04-01), Garza et al.
patent: 3806036 (1974-04-01), Olson
patent: 3887138 (1975-06-01), Gilead
patent: 3897009 (1975-07-01), Rangel-Garza

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