ALEXANDRIA, Va., April 7 -- United States Patent no. 12,594,454, issued on April 7, was assigned to Rep Fitness LLC (Westminster, Colo.).
"Trolley assembly and weight arm" was invented by Joseph G. Larson (Westminster, Colo.), Samuel M. Pizer (Denver) and Ryan James McGrotty (Westminster, Colo.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A trolley assembly for a weight arm includes first and second trolley members that capture a vertical member of a weight rack and is selectively slidable. An arm bracket is configured to rotatably support the weight arm and the arm bracket is pivotably coupled to the trolley members about a pivot point. The pivot point defines a pivot axis that is orthogonal to the longit...