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US 6,206,034 B1Granted
Valve with integral flow switch
AssigneeAGF Manufacturing, Inc.
InventorGeorge J. McHugh
Life of this patent
Estimating the term…
Abstract
A valve has an integral flow switch with a passageway provided through the valve member such as a butterfly disk to an inlet of the flow switch. An outlet of the flow switch communicates with the outlet of the valve.
Claims29
A valve and flow switch arrangement, comprising:
- a housing defining an interior chamber having an inlet and an outlet;
- valve means for controlling a flow between the inlet and the outlet including a valve member which is movable to an open position in which flow is permitted between the inlet and the outlet and which is movable to a closed position in which flow is blocked between the inlet and the outlet;
- flow switch means for detecting a flow through said valve;
- means for providing communication between the valve inlet and an inlet of the flow switch means when said valve member is in said open position;
- and
- means for providing communication between the valve outlet and an outlet of the flow switch means.
3 more elements
A butterfly valve and flow switch arrangement, comprising:
- a housing defining an interior chamber having an inlet and an outlet;
- valve means for controlling a flow between the inlet and the outlet including a valve member which comprises a disk which is movable about an axis of rotation to an open position in which flow is permitted between the inlet and the outlet and which is movable about the axis of rotation to a closed position in which flow is blocked between the inlet and the outlet;
- means for moving said disk to said open position and to said closed position;
- a flow switch having an inlet and an outlet;
- means for providing communication between the valve inlet and the inlet of the flow switch when said disk is in said open position;
- and
- means for providing communication between the valve outlet and the outlet of the flow switch.
4 more elements
Dependencies are inferred from the claim text.