Non-siphoning float controlled valve assembly

Details Non-siphoning float controlled valve assembly Non-siphoning float controlled valve assembly

1976-08-12

1977-12-27

Nilson, Robert G.

Fluid handling

Back flow prevention by vacuum breaking

Air vent in liquid flow line

119 78, 137448, G05D 902, F16K 3118, F16K 2402

Patent

active

040648958

ABSTRACT:
A non-siphoning float controlled valve assembly for supplying water from a source to a livestock watering tank comprises a one-piece cast aluminum hollow housing open at the bottom and having an integrally formed upwardly projecting hollow neck near one end. Means are provided for detachably connecting the housing to the side of the watering tank. The neck serves as a water-fill passage and the main portion of the housing defines a float chamber. The upper end of the neck is adapted for connection to a water supply hose or pipe, and a water-fill inlet opening having a valve seat therearound is provided in a constricted portion of the neck. A pair of anti-siphon holes extend through the neck wall. A downwardly depending float support lever, which has its upper end pivotally connected inside the neck and has its lower end connected to a float in the float chamber, carries a compressible member for cooperation with the valve seat to open and close the water-fill inlet opening as the water level in the tank changes.

REFERENCES:
patent: 2778377 (1957-01-01), Manchester
patent: 2854022 (1958-09-01), Mosher
patent: 3286724 (1966-11-01), Sawyer
patent: 3485261 (1969-12-01), Reitman
patent: 3970101 (1976-07-01), Wilson

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