Patent ID: 9574680
Date: 2017-02-21
CPC Classifications: F16K,Y10T

Claim:
1. A fluid shut-off valve assembly comprising: a valve body having a fluid passageway, wherein in at least a portion of the fluid passageway is sensor monitored for flow detection; a valve stem having a valve plug moveable between an open position and a closed position; a flow detection device having: a magnetic circuit electrically connected to the flow device and having a magnet and a latch, with the magnet normally maintaining The valve plug in an open position; a timer operably associated with the flow detection device and electronicaly connected to the magnetic circuit, wherein the timer is configured to time duration of fluid flowing through the passageway, and to energize the coil after a pre-set time set period expires, to thereby open the latch to allow the valve plug to close.