Patent ID: 7325782

Claim:
A remotely activated shut-off for stopping a fluid flow in a fluid line by actuating an existing valve in fluid connection with the fluid line, the valve being within an existing valve body and including an existing external element for the actuating of the valve between a valve open position and a valve closed position, said shut-off comprising an outer body having a mounting bracket configured to secure said shut-off to the valve body in a mounted position such that the external element is substantially covered by said shut-off when said shut-off is in said mounted position; a coupler for mating engagement with the external element such that movement of said coupler is translated to the external element; a lever within said outer body that is moveable between a first position and a second position, said lever being configured to set said coupler in motion as said lever moves from said first position to said second position such that movement of said lever from said first position to said second position actuates said coupler thereby moving the valve to the valve closed position; a receiver for receiving a remote signal to move said lever to said second position; the existing valve being a rotary valve and rotates 90 degrees between the open position and the close position, said coupler being supported for rotation by said outer body about a coupler axis, said external element being coaxial to said coupler axis when said shut-off is in said mounted position a spring for rotating said lever from said first position to said second position and a cam lock moveable between a locked condition and an unlocked condition, said cam lock maintaining said lever in said first position when in said locked condition and allowing said lever to move to said second position when in said unlocked condition, said receiver being in communication with said cam lock to move said lock from said locked condition to said unlocked condition.