ALEXANDRIA, Va., June 9 -- United States Patent no. 12,287,413, issued on April 29.
"Method for gauging a track position" was invented by Bernhard Lichtberger (Vienna).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method for gauging a track position uses a track gauging trolley (7) moved on the track. A gauging run is carried out with the track gauging trolley (7), a GPS antenna (8) and an RTK GPS receiver (11) that communicates with an RTK correction data service (RTK-KD), wherein at least one wheel (10) of the track gauging trolley (7) is pressed against a rail (4). Using boundary conditions such as constraint positions, constraint points and maximum permissible track position corrections, to avoid the d...