ALEXANDRIA, Va., Aug. 5 -- United States Patent no. 12,697,759, issued on Aug. 4, was assigned to INGLASS S.P.A. (San Polo di Piave, Italy).
"Guillotine obturation valve for injection molding" was invented by Massimo Rossi (San Polo di Piave, Italy), Alessandro Dario (San Polo di Piave, Italy) and Massimo Bisetto (San Polo di Piave, Italy).
According to the abstract* released by the U.S. Patent & Trademark Office: "An obturation valve is described for controlling a flow of molten material exiting from a nozzle into a mold cavity, comprising a channel for the molten material extending along a first axis, two or more obturating members that are mounted movably along a respective second axis inclined at an acute angle with respect to the fir...