ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,449,052, issued on Oct. 21, was assigned to Watts Regulator Co. (North Andover, Mass.).
"Bidirectional excess flow valve" was invented by Mark E. Felgar (New Stanton, Pa.) and Matthew W. Riggle (Ford City, Pa.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A bidirectional excess flow valve for automatically stopping delivery of a fluid from a supply in a fluid network. The valve has a housing defining an interior forming a fluid passageway along a flow axis between a first opening and a second opening. The valve also has a valve seat in the interior, the fluid passageway extending through the valve seat, and a first and second shutoff element disposed o...