Pop-up sprinkler with improved inlet valve

Details Pop-up sprinkler with improved inlet valve Pop-up sprinkler with improved inlet valve

1987-08-26

1989-01-10

Kashnikow, Andres

Fluid sprinkling, spraying, and diffusing

Processes

239203, 239205, 239576, 239586, 251 5, B05B 1510

Patent

active

047968044

ABSTRACT:
A pop up sprinkler utilizes a diaphragm valve oriented in a vertical manner within the sprinkler water inlet. The valve has a circular bellows surrounding a core and is movable between an expanded position embracing the core and a relaxed position displaced from the core. In the displaced position water flow through the sprinkler is allowed, such flow passing about the core in a manner which creates minimal pressure loss in the valve.

REFERENCES:
patent: 2622620 (1952-12-01), Annin
patent: 3145967 (1964-08-01), Gardner
patent: 3239100 (1966-03-01), Peterson
patent: 3325138 (1967-06-01), Connolly
patent: 3354970 (1967-11-01), Lummus
patent: 3713584 (1973-01-01), Hunter
patent: 4432495 (1984-02-01), Bruninga
Inbal Control Valves brochure, 11/1986.

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