ALEXANDRIA, Va., April 2 -- United States Patent no. 12,264,751, issued on April 1, was assigned to Flowcon International ApS (Slagelse, Denmark).
"Control valve" was invented by Bjarne Wittendorff Ibsen (Slagelse, Denmark) and Carsten Enoe Moller (Slagelse, Denmark).
According to the abstract* released by the U.S. Patent & Trademark Office: "A control valve (1) for regulating a water flow to or from a device in a HVAC system, having a valve body (2), a shaft (15,25) rotatable about a valve axis X, a first ceramic plate (16,26) and a second ceramic plate (17,27) mounted about the shaft (15,15',15"), the first ceramic plate (16,26) being stationary, while the second ceramic plate (17,27) is coupled to the shaft (15,15',15") to rotate with ...