Multi-purpose seal for pop-up sprinkler

Details Multi-purpose seal for pop-up sprinkler Multi-purpose seal for pop-up sprinkler

1980-04-11

1982-02-23

Kashnikow, Andres

Fluid sprinkling, spraying, and diffusing

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

Solid scraping or clearing member

239205, 239206, 277 24, 277 27, 277152, 285110, 285302, B05B 1510

Patent

active

043165796

ABSTRACT:
For use with a pop-up sprinkler of the full or part circle type, a multi-purpose seal is provided between the movable stem of the pop-up sprinkler and a stationary mounting base which is fixed with respect to the sprinkler housing. The seal is preferably a unitary molded article and includes a grit wiper at its upper end, a central bearing to slidingly guide the stem within the housing, a sliding water-activated seal, and an annular static seal for providing a watertight seal between the movable stem and stationary housing during normal operation of the sprinkler.

REFERENCES:
patent: 2066008 (1936-12-01), Knoerzer
patent: 3921910 (1975-11-01), Hayes et al.

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