ALEXANDRIA, Va., Sept. 8 -- United States Patent no. 12,728,682, issued on Sept. 8.
"Amphibious craft" was invented by John B. Coast (Baton Rouge, La.).
According to the abstract* released by the U.S. Patent & Trademark Office: "An improved amphibious craft having a hull having spaced apart pontoons is fitted with belts and cleats. A platform is connected to each said pontoon. A plurality of bogie wheels are connected to each pontoon. One or more belts encircle each pontoon. Drive and guide lugs are attached to each of the belts having drive lugs positioned on opposing sides of each bogie wheel. The drive and guide lugs help center the tracks/belts relative to the bogie wheels. A plurality of polymeric cleats of special configuration are ...