ALEXANDRIA, Va., Sept. 8 -- United States Patent no. 12,729,489, issued on Sept. 8, was assigned to Plasser & Theurer Export von Bahnbaumaschinen Gesellschaft m.b.H (Vienna).
"On-track maintenance machine and method for operating the machine" was invented by Johannes Max-Theurer (Vienna), Florian Auer (Vienna) and Michael Klement (Vienna).
According to the abstract* released by the U.S. Patent & Trademark Office: "The invention relates to an on-track maintenance machine for maintaining a superstructure with a track panel formed of sleepers and rails fixed thereon that is supported on a ballast bed, comprising a lifting and lining unit for track lifting and lining and a tamping unit for track tamping. In the invention, at least one rail tr...