Retracting agricultural irrigation sprinkler

Details Retracting agricultural irrigation sprinkler Retracting agricultural irrigation sprinkler

1978-02-13

1979-10-23

Cherry, Johnny D.

Fluid sprinkling, spraying, and diffusing

With fixed support for or ground installed supply means

Embedded or buried sprinkler

239271, B05B 304, B05B 1510

Patent

active

041717759

ABSTRACT:
Upright cylinder buried underground has riser which is thrust upward to a raised position where the top is above ground. Motor in the top of the riser carries and rotates a sprinkler nozzle. Piston retracts riser, and during retraction, water flow washes the riser as it is drawn into the cylinder. An internal check valve prevents ground water from entering the system.

REFERENCES:
patent: 1484888 (1924-02-01), Johnson
patent: 1999470 (1935-04-01), Munz
patent: 3033467 (1962-05-01), Hofer
patent: 3637139 (1972-01-01), Felix
patent: 3655132 (1972-04-01), Rosic
patent: 3733030 (1973-05-01), Carstenson
patent: 3752403 (1973-08-01), Diest
patent: 3921910 (1975-11-01), Hayes et al.

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