ALEXANDRIA, Va., April 21 -- United States Patent no. 12,607,122, issued on April 21, was assigned to HINFRA S.R. L. (Casale Monferrato, Italy).
"Automated method and processing train for lining tunnels" was invented by Stefano Guanziroli (Erba, Italy).
According to the abstract* released by the U.S. Patent & Trademark Office: "A processing train configured to run along a tunnel to lay a solidifiable fluid material on a wall of the tunnel and allow the solidifiable fluid material to solidify for construction of a lining of the tunnel, an advancement system for advancing the sliding form, a closing edge for closing a space between a front edge of the sliding form and the wall of the tunnel, and spouts for dispensing the solidifiable fluid ...