ALEXANDRIA, Va., March 17 -- United States Patent no. 12,576,928, issued on March 17, was assigned to George L Williamson (Fairhope, Ala.).
"Locking system for king pin of fifth wheel" was invented by James C Smith (Carthage, Miss.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Method and apparatus for locking the king pin of a trailer within a conventional fifth wheel as is commonly used on highway truck-tractors. The locking system is designed to operate independently of and without interference with any release mechanism that is used on conventional fifth wheels in use at this time. The device includes a sliding rod member which slides transversely across the throat of the opening into the slot of the loc...