Pop-up sprinkler

Details Pop-up sprinkler Pop-up sprinkler

1979-10-17

1980-11-18

Saifer, Robert W.

Fluid sprinkling, spraying, and diffusing

With cleaning means, drip collecting, waste disposal or soil...

Nozzle cleaner, flusher or drainer

239205, B05B 1502, B05B 1510

Patent

active

042341256

ABSTRACT:
A long-extension pop-up sprinkler for subsurface installation and irrigation of overlying plantings. A wiper seal or ring at the top of the sprinkler body strips sand and dirt from a riser which retracts when inlet water is turned off, and this seal is water flushed during both extension and retraction of the riser. An internal moving seal at the bottom of the riser isolates the wiper ring from line-pressure water, and enables flushing of the ring during both riser extension and retraction by water trapped within the sprinkler body.

REFERENCES:
patent: 3268173 (1966-08-01), Costa
patent: 3335959 (1967-08-01), Lockwood
patent: 3921910 (1975-11-01), Hayes et al.
patent: 4078726 (1978-03-01), Walto

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