ALEXANDRIA, Va., July 21 -- United States Patent no. 12,685,238, issued on July 21, was assigned to DOT Technology Corp. (Emerald Park, Canada).

"Unidirectional implement operating apparatus" was invented by Norbert Beaujot (Emerald Park, Canada).

According to the abstract* released by the U.S. Patent & Trademark Office: "A U-shaped drive frame has abase beam and parallel side beams defining an open implement area. Drive wheels support the side beams, and each drive wheel rotates about a horizontal drive wheel axis perpendicular to the operating travel direction. A steering control steers the drive frame in the operating travel direction. Implements are configured to perform implement operations and to rest on the ground surface when in a...