Lawn sprinkler

Details Lawn sprinkler Lawn sprinkler

1976-08-03

1978-03-14

Saifer, Robert W.

Fluid sprinkling, spraying, and diffusing

With fixed support for or ground installed supply means

Embedded or buried sprinkler

239113, 239590, B05B 1510, B05B 1502

Patent

active

040787265

ABSTRACT:
A pop-up sprinkler having a vertically extensible and retractable spray head assembly and means for flushing the channel in which the assembly moves with outflowing water both when the assembly extends and when it retracts, the arrangement permitting the use of a strainer built into the spray head assembly and replaceable, after installation of the sprinkler by simply removing a spray head.

REFERENCES:
patent: 223332 (1880-01-01), Fox
patent: 1203542 (1916-10-01), Hawley
patent: 1901655 (1933-03-01), Keys
patent: 3268173 (1966-08-01), Costa
patent: 3272436 (1966-09-01), Hunter
patent: 3335959 (1967-08-01), Lockwood
patent: 3503555 (1970-03-01), Lockwood et al.
patent: 3921910 (1975-11-01), Hayes et al.

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