ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,422,053, issued on Sept. 23, was assigned to 1636457 ALBERTA LTD. (Grande Prairie, Canada).

"Safety valve for sump pump" was invented by Russell R. Niemi (Grande Prairie, Canada).

According to the abstract* released by the U.S. Patent & Trademark Office: "A sump pump system for a residential building has a sump with an inlet that receives water from an external source, a pump positioned with the sump, the pump having a pump inlet in fluid communication with the sump and an outlet in communication with a fluid destination, a valve connected to the inlet of the sump, the valve being movable between an open position in which fluid is permitted to enter the sump via the inlet, and a clo...