ALEXANDRIA, Va., April 15 -- United States Patent no. 12,601,122, issued on April 14, was assigned to Wirtgen GmbH (Windhagen, Germany).
"Adjustable string line sensors for slip form paving" was invented by Michael Engels (Montabaur, Germany), Gunnar Ramseger (Borod, Germany) and Christoph Weigel (Sankt Augustin, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A slip form paving machine includes a machine frame, a plurality of ground engaging wheels or tracks, and front and rear height adjustable lifting columns adjustable to adjust a longitudinal inclination of the machine frame in a paving direction. A slip form mold is supported from the machine frame. The machine further includes a front stringlin...