ALEXANDRIA, Va., Dec. 16 -- United States Patent no. 12,497,846, issued on Dec. 16.
"Drilling tool changer device and a method for making the change" was invented by Raul Patricio Bizama Almendras (Lo Barnechea, Chile) and Felipe Izquierdo Gonzalez (Lo Barnechea, Chile).
According to the abstract* released by the U.S. Patent & Trademark Office: "A device and a method for changing the drill bits, tricone bits or DTH bits of drill strings on a drilling platform is describe herein, the device comprising an arm element (1) moveable in a rotating, vertical or horizontal manner. A post or supporting element (5) is connected to one of the ends of arm (1) and it is connected to arm (1) in such a way that it moves the arm. Element (5) serves as a ...