US Patent Issued to Robertshaw Controls on June 30 for "Gas leak detector in gas appliances" (Illinois Inventor)

ALEXANDRIA, Va., July 16 -- United States Patent no. 12,669,248, issued on June 30, was assigned to Robertshaw Controls Co. (Itasca, Ill.).

"Gas leak detector in gas appliances" was invented by James E. Pearson (Itasca, Ill.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A gas system, such as an appliance or a building has a pressure sensor intermediate a master solenoid valve and at least one valve, wherein when the at least one valve is closed, shut or off, and the master solenoid valve is off, the pressure sensor senses pressure and if pressure drop over a given time exceeds a predetermined amount, an alarm condition is identified (indicating a leak). The master solenoid valve may be maintained shut until...