ALEXANDRIA, Va., Sept. 24 -- United States Patent no. 12,742,502, issued on Sept. 22.
"Knife valve for atmospheric systems" was invented by Gabriel Eliceo Madariaga Elgueta (Antofagasta, Chile).
According to the abstract* released by the U.S. Patent & Trademark Office: "A guillotine valve for controlling the passage of fluids, such as pulps, tailings and sludge in atmospheric systems, comprising at least one cage attached to the inlet or outlet of at least one tank; at least one gate which controls the flow of the at least one fluid; at least one movement transmission means which allows the at least one gate to be moved between at least one open position and at least one closed position; at least one drive means which allows the at least ...