ALEXANDRIA, Va., March 31 -- United States Patent no. 12,589,816, issued on March 31, was assigned to Jost-Werke Deutschland GmbH (Neu-Isenburg, Germany).
"Fifth wheel plate and fifth wheel coupling" was invented by Achim Strutt (Riedstadt, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "Fifth wheel plate with a sliding plate having a top surface and a bottom surface. The sliding plate is detachably secured to the fifth wheel plate by at least one screw connection, the screw connection including a fastening means having a screw head and a threaded shank. The fifth wheel plate screw connection includes a form-fit element which bears against the bottom surface of the sliding plate and which has a form-f...