ALEXANDRIA, Va., Aug. 25 -- United States Patent no. 12,716,177, issued on Aug. 25.
"Track-tamping machine for compressing the ballast bed of a track" was invented by Bernhard Lichtberger (Vienna).
According to the abstract* released by the U.S. Patent & Trademark Office: "A track-tamping machine (100) for compressing the ballast bed of a track comprises a tamping assembly group that has at least two tamping assemblies (ST), which are arranged in a row and can be moved transversely to the track-tamping machine longitudinal direction (AR) by a transverse-movement device, in order to tamp the track on each track-tamping machine side (R, L). The tamping assembly group (V, H) is rotatably mounted on a support (18) for the purpose of a rotatio...