ALEXANDRIA, Va., April 21 -- United States Patent no. 12,607,063, issued on April 21, was assigned to Werner Co. (Itasca, Ill.).
"Step ladder pivot and lock mechanism" was invented by Carl William Behm (Queensland, Australia) and Ben Phillip Loveday (Queensland, Australia).
According to the abstract* released by the U.S. Patent & Trademark Office: "A ladder is disclosed which has a lockable pivot arrangement. The lockable pivot arrangement is located and connected between two elongate ladder sections. Inside each pair of end housings there are at least two receptacles. A pivot mechanism connects between the end housings and the end housings rotate in unison and also allow the pair of end housings to rotate relative to the housing. A lock ...