ALEXANDRIA, Va., Oct. 8 -- United States Patent no. 12,435,793, issued on Oct. 7, was assigned to Engineered Controls International LLC (Elon, N.C.).
"Cryogenic fluid shut-off valve" was invented by Guangbin Cao (Shanghai).
According to the abstract* released by the U.S. Patent & Trademark Office: "Shut-off valves for cryogenic fluids are disclosed herein. An example valve includes a valve body defining a flow path and a valve seat, a bonnet coupled to the valve body and defining a bonnet chamber, a plug, and a stem coupled to the plug. The stem is configured to slide to cause the plug to slide. The valve includes a spindle that includes external threads. The spindle is configured to move along a longitudinal axis of the bonnet as the spi...