US Patent Issued to Camco Manufacturing on Sept. 1 for "Sewer expansion plug" (North Carolina Inventors)

ALEXANDRIA, Va., Sept. 1 -- United States Patent no. 12,723,395, issued on Sept. 1, was assigned to Camco Manufacturing LLC (Greensboro, N.C.).

"Sewer expansion plug" was invented by Brandon Blakely (Burlington, N.C.), Gregory Walton (Kernersville, N.C.), Niko Jovicevic (Statesville, N.C.), Bruce Andrew Angel (Stokesdale, N.C.), Blake Lamb (Greensboro, N.C.) and Steven L. Spencer (Lawsonville, N.C.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A sewer expansion plug for connecting a sewer house to a cleanout pipe that expands a grip ring by rotating a handle. The grip ring includes multiple diameters to accommodate various size blackwater cleanout pipes. The handle connects to a wedge plate, which converts ...