ALEXANDRIA, Va., June 17 -- United States Patent no. 12,311,221, issued on May 27.
"Straddle door mount travel gym system" was invented by Walter J. Mikulski (Orlando, Fla.).
According to the abstract* released by the U.S. Patent & Trademark Office: "An exercise system includes a door stop and a door sleeve having an elongated sleeve body with a U-shaped channel along the bottom surface. The door sleeve is positioned along the top wall of a door with the sides of the sleeve straddling the top wall. A security anchor connects the back of the door sleeve to the back of the door via an adjustable length tether. A resistance cable device is provided and includes an elastic band having handles along each end. The band is positioned across the ...