ALEXANDRIA, Va., June 4 -- United States Patent no. 12,320,440, issued on June 3, was assigned to CIRCOR Industria SAS (Le Plessis-Trevise, France).
"Rotary disc valve" was invented by Francois Sardet (Combs la Ville, France), Patrice Ridal (Limeil-Brevannes, France) and Damien Bourdin (Yerres, France).
According to the abstract* released by the U.S. Patent & Trademark Office: "A rotary disc valve includes a guide assembly having a ring-shaped member having a groove disposed in an inner surface thereof, and a valve disc assembly rotatably coupled to the guide assembly. The valve disc assembly includes a valve disc, a projection received within the groove of the guide assembly, and a chimney support coupled to the guide assembly. The chimn...