ALEXANDRIA, Va., March 3 -- United States Patent no. 12,564,760, issued on March 3, was assigned to Stronger Brands Consulting LLC (McKees Rocks, Pa.).
"Stair step exercise machine" was invented by Shawn Reed (McKees Rocks, Pa.), David Weckerly (Knox, Pa.) and Charles Kennedy (Moon Township, Pa.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A manual stair step exerciser that simulates the exercise derived from climbing stairs including a support frame with a chain sprocket assembly having multiple equal spaced deployable steps thereon. A drive shaft pulley and belt assembly interconnects to an adjustable magnetic resistant flywheel for sustained user step input of kinetic energy for sustaining self-propelle...