ALEXANDRIA, Va., July 16 -- United States Patent no. 12,668,932, issued on June 30.
"Laser-controlled truss screed apparatus" was invented by Kelly Kruse (Bozeman, Mont.) and Steven K. Lundberg (Kalispell, Mont.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A laser-controlled truss screed apparatus with a laser, a mover, a truss assembly, and first and second receivers. The truss assembly includes a screed, a trolley, a truss, legs, and first and second vertical posts. The receivers are configured to receive a signal from the laser. The mover is disposed on a first end of the truss, and the legs are disposed on a second end of the truss. The vertical posts, the trolley, and the screed are configured to form...