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US 4,250,907 AGranted
Float valve assembly
OwnerEdmund E. Struckman, Harold S. Larseninventors
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OwnerEdmund E. Struckman, Harold S. Larseninventors
Estimating the term…
For ensuring a quick cut-off of a float controlled valve, there is provided a float having a buoyant body and a receptacle for liquid on the body, a single first tube providing an inlet to and an outlet from the receptacle, and a second tube connected to the first tube at an angle directed towards the interior of the receptacle to permit a portion of the liquid from the valve to flow through the second tube into the receptacle to bias the float downwardly and therefore the valve to its maximum open position, the direction of flow of liquid from the second into the first tube acting to dam any liquid in the receptacle. When the valve approaches its closed position, the flow through the second tube decreases and liquid flows out of the receptacle so removing the bias on the float and allowing the float rapidly to rise and close the valve.
A float for a float controlled valve, the float comprising a body adapted to be buoyant on a liquid, a receptacle formed on the top of the body, a combined inlet/outlet channel unit comprising a first pipe open at both ends and extending through a wall of the receptacle in a lower region thereof and forming at one end an inlet in the receptacle and at the other end an outlet outside the receptacle, and a second pipe having one end connected to the first pipe intermediate its ends and an opposite end adapted to be connected to a water feed conduit, the second pipe forming with the first pipe an acute angle the apex of which is directed towards the inlet of the first pipe.
A liquid level control apparatus including a valve connectable to a supply of liquid;
A method of controlling a liquid level control valve actuated by a float that is buoyant on a liquid the level of which is to be controlled, including the steps of forming a receptacle for the liquid on the float, forming a single fluid path into and out of the receptacle;
Dependencies are inferred from the claim text.