ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,551,861, issued on Feb. 17, was assigned to Directa Plus S.p.A. (Lomazzo, Italy).
"Apparatus for treating materials with plasma" was invented by Flavio Brandolese (Milan), Giulio Giuseppe Cesareo (Como, Italy) and Laura Giorgia Rizzi (Saronno, Italy).
According to the abstract* released by the U.S. Patent & Trademark Office: "Apparatus for treating materials with plasma, comprising a microwave generator (15), a waveguide (20) and a tubular torch (30), comprising three coaxial tubes (33, 35, 37) and a central section (30.2) connected to the waveguide (20) by means of a body (50) having a cavity (52) through which the tubes pass. A plasma containment chamber is defined in the outer tub...