Valve control mechanism
OwnerSimon Tutureskiinventor
Life of this patent
Estimating the term…
Abstract
A valve control mechanism having a butterfly valve with a pivoting disc controlled by a linkage system. The linkage involves a pivot arm connected to a frame, a control arm attached to the control rod, and a swing arm connecting the pivot and control arms. This arrangement allows the mechanism to alternate between open and closed configurations. In the open state, the pivot arm pivot point is at an open position, and the control arm rotates the control rod to open the valve. In the closed state, the pivot arm pivot point is at a closed position, and the control arm rotates the control rod to close the valve. Additionally, a control shaft and actuator extend and retract based on the linkage position, with the extended shaft preventing the pivot arm pivot point from moving to the open position.
Claims7
A valve control mechanism comprising:
- a pivot arm pivotally interfacing a frame;
- a swing arm pivotally interfacing the pivot arm;
- a control arm pivotally interfacing the swing arm, the control arm controlling operation of a disc of a butterfly valve between open and closed positions;
- an actuator, wherein:
- the pivot and swing arms are configured to the extend and retract to operate the disc between the closed and open positions respectively;
- the actuator is configured to;
- hold the pivot and swing arms extended at an under-centre position to keep the disc in the closed position;
- and
- release the pivot and swing arms to retract to allow the disc to rotate to the open position;
- and
- wherein the disc is biased to the closed position.
Dependencies are inferred from the claim text.