ALEXANDRIA, Va., Dec. 2 -- United States Patent no. 12,486,904, issued on Dec. 2, was assigned to Caterpillar Global Mining LLC (Tucson, Ariz.).
"Hydraulic valve" was invented by Igor Strashny (Tucson, Ariz.) and Andrew Hamilla (Tucson, Ariz.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A shut off valve for a hydraulic system is provided. The shut off valve comprises a wall of a hydraulic reservoir, a hydraulic fluid outlet, a valve seat, a valve plate, a valve arm, and a valve control shaft. The hydraulic reservoir is for holding hydraulic fluid. The hydraulic fluid outlet is formed through the wall. The valve seat is provided on an inner surface of the wall encircling the hydraulic fluid outlet. The valv...