ALEXANDRIA, Va., Dec. 9 -- United States Patent no. 12,492,757, issued on Dec. 9, was assigned to GEORG FISCHER CENTRAL PLASTICS LLC (Shawnee, Okla.).
"Smart valve gas shut-off system" was invented by Michael D. Smith (Shawnee, Okla.) and Tom Veeley (Shawnee, Okla.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A smart valve gas shut-off system for use in a building to detect the presence of natural gas and to shut off the supply of gas leading to the appliance from where the gas was detected. The smart valve gas shut-off system uses a sensor to detect the natural gas and a sensor alarm, in the form of a light indicator or other indicator, that while the sensor is in the alarm state, the valve controlling th...