US Patent 8359994 Retractable pontoon boat cover

A retractable cover system for a pontoon boat comprising an expanding frame of U-shaped supports sliding in tracks along the sides of the boat, the U-shaped supports interconnected by expanding scissors. The bow and stern ends of the frame are provided with pivoting sections that include horizontal and angled U-shaped supports to define fabric-supporting and fabric-securing structure at the bow and stern of the boat when the frame is fully extended. The retracted frame and fabric cover self-store at the stern of the boat by tilting a pivot station portion of the track rearwardly.