ALEXANDRIA, Va., April 15 -- United States Patent no. 12,601,442, issued on April 14.
"Internal pipe float device" was invented by Wise Jackson Hardin (Altamonte Springs, Fla.) and John Paul Hardin (Fairview, N.C.).
According to the abstract* released by the U.S. Patent & Trademark Office: "An internal pipe float device includes a main body having a top surface, a bottom surface, a side surface and an interior space. The main body is constructed from a lightweight buoyant material and the interior space includes a sealed air pocket that increases the buoyancy of the body. The main body includes a generally circular shaped member having a plurality of notches along the side surface. Each of the notches houses a wheel assembly having an axl...