ALEXANDRIA, Va., March 24 -- United States Patent no. 12,584,569, issued on March 24, was assigned to Columbus McKinnon Corp. (Getzville, N.Y.).
"Expandable cable trolley system" was invented by James Meehan (Charlotte, N.C.).
According to the abstract* released by the U.S. Patent & Trademark Office: "An expandable cable trolley system for supporting cables for a hoist from a trolley configured to travel along an overhead beam. The cable trolley system includes a first block, a second block, and a third block with cooperating curved slots that form openings to receive the cables. The first block has at least one roller mounted on the top surface for engaging with an overhead beam. The second block is disposed below and attaches to the fir...