Pop-up sprinkler with independently biased drain valve

Details Pop-up sprinkler with independently biased drain valve Pop-up sprinkler with independently biased drain valve

1982-05-10

1984-02-21

Love, John J.

Fluid sprinkling, spraying, and diffusing

With fixed support for or ground installed supply means

Embedded or buried sprinkler

239206, 239575, B05B 1510

Patent

active

044324952

ABSTRACT:
An improvement in a pop-up sprinkler which comprises the provision of an upwardly facing annular valve seat in the lower portion of the housing assembly above the inlet therein and a valve member on the pop-up sprinkler head assembly in a position to engage the annular valve seat when the sprinkler head assembly is in its retracted storage position. The valve member is mounted on the sprinkler head assembly for biased movement independent of the movement of the sprinkler head assembly and the bias thereof provided by its weight and the return coil spring thereof so that the valve member will be separately moved out of engagement with the annular valve seat to permit passage of water under pressure into the housing assembly in response to the communication of the source of water under pressure with the inlet.

REFERENCES:
patent: 2611644 (1952-09-01), Burdick
patent: 2705663 (1955-04-01), Gilbreath
patent: 3033467 (1962-05-01), Hofer
patent: 3258205 (1966-06-01), Hruby
patent: 3637139 (1972-01-01), Felix
patent: 3758038 (1973-09-01), Ridgway
patent: 3921910 (1975-11-01), Hayes et al.
patent: 4026471 (1977-05-01), Hunter
patent: 4164324 (1979-08-01), Bruninga
patent: 4171775 (1979-10-01), Unruh

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