Irrigation network valve
AssigneeCountry Cocky Pty. Ltd.
InventorPeter Anthony Cocciardi
Life of this patent
Estimating the term…
Abstract
Irrigation valves for channels and for irrigation tanks are of three types. All are activated by a pair of tilting float arms to which a pair of floats are attached. One type is a T-shaped duct with a cylindrical valve disposed at 90 degrees to the part that is connected to the incoming flow. The floats rotate the valve. The second type has the same construction as the first type, thereby giving flow control but additionally has a rise and fall gate in the duct part that is connected to the incoming flow. The gate acts as a stop valve. The third type has a cylindrical duct connectable to the incoming flow but no valve and provides both flow control and stop valve facilities through a rise and fall gate actuated by the tilting of the float arms.
Claims33
A stop valve for a duct pipe feeding an irrigation channel comprising a duct with an inlet and an outlet, a rise and fall gate between the inlet and outlet, a pair of float arms supported on pivots lying on an axis transverse to the duct direction and a float for determining the inclination of each float arm.
A stop valve for a tank comprising a duct with an inlet and an outlet, a rise and fall gate between the inlet and outlet, a float arm supported by the duct operable to open and close the gate in response to rise and fall movement of the float.
A combined flow regulator and stop valve comprising a T-shaped valve body with an inlet axis and an outlet axis lying transversely to the inlet axis, a gate disposed across the inlet parallel to the outlet axis, a cylindrical portion of the valve body disposed about the outlet axis a cylindrical valve member retained in the cylindrical portion, having a flow aperture connecting the inlet to the outlet or outlets, pairs of circumferential slots in the cylindrical portion of the valve body and a pair of arms which pass diametrically through both the pairs of slots and the valve body, one end of each arm being attached to the gate, the opposite end being attached to a float, whereby ascent of the floats both rotates the valve member to reduce flow and causes the gate to move from an open position towards a closed position and descent of the floats also rotates the valve member to increase flow and causes the gate to move towards the open position.
A flow regulating valve for a liquid container comprising a valve body with an inlet and at least one outlet, a rotary valve member in the body, wherein the valve body has means to rotate the valve member in response to the water level outside the valve body in the container thereby regulating flow rate.
A water distribution system comprising a bulk water container with a water inlet and one or more outlets for distributing water to land, a water inlet for receiving water from a pipe network, a flow regulator admitting water to the container, wherein the regulator has a rotatable flow restrictor which is float activated.
Dependencies are inferred from the claim text.