ALEXANDRIA, Va., Aug. 18 -- United States Patent no. 12,709,340, issued on Aug. 18.

"Tracked undercarriage for operating machines" was invented by Renzo Comacchio (Riese Pio X (TV), Italy), Pasqualino Comacchio (Riese Pio X (TV), Italy) and Patrizio Comacchio (Riese Pio X (TV), Italy).

According to the abstract* released by the U.S. Patent & Trademark Office: "A tracked undercarriage for oscillating and retractable operating machines includes a main frame, a track unit mounted on each of two opposite sides of the main frame, and a sliding frame mounted on each of the two opposite sides of the main frame, Each sliding frame has the dual function of translating the corresponding track unit with respect to the main frame and to vary the incl...