Valve for self-maintaining poultry waterer

Details Valve for self-maintaining poultry waterer Valve for self-maintaining poultry waterer

1979-01-02

1981-03-10

Schwadron, Martin P.

Fluid handling

Liquid level responsive or maintaining systems

By float controlled valve

119 78, 137448, 251339, F16K 3118, A01K 704

Patent

active

042547946

ABSTRACT:
In a poultry watering system having a float-controlled valve for maintaining a desired water level in a trough, leakage through the valve from an overhead supply line, which may occur when the water supply is cut off is effectively prevented without reducing sensitivity of the float by the provision of spring means located within the interior of a valve housing and acting on the end of the float stem.

REFERENCES:
patent: 1375585 (1921-04-01), Goodwin et al.
patent: 1642926 (1927-09-01), Imschweiler
patent: 2336120 (1943-12-01), Null
patent: 2710594 (1955-06-01), Thompson
patent: 3095896 (1963-07-01), Ross
patent: 3128745 (1964-04-01), Alter
patent: 3428028 (1969-02-01), Hart
patent: 3646955 (1972-03-01), Olde
patent: 3874344 (1973-12-01), Smith
patent: 3941094 (1976-03-01), Nilsen, Jr.
patent: 4014365 (1977-03-01), Peterson et al.
patent: 4133345 (1979-01-01), Mitchell

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