ALEXANDRIA, Va., March 12 -- United States Patent no. 12,247,488, issued on March 11, was assigned to KERN Tunneltechnik SA (Paradiso, Switzerland).
"Modular tunnel formwork device" was invented by Reiner Kern (Paradiso, Switzerland).
According to the abstract* released by the U.S. Patent & Trademark Office: "A modular tunnel forming apparatus includes at least two modules which are arranged one behind the other in the longitudinal direction of the tunnel formwork device and are detachably connectable to one another. The at least two modules each have a frame part, and the frame parts of the interconnected modules form a frame of the tunnel formwork device. At least two support structures, which can be connected to the frame of the tunnel...