ALEXANDRIA, Va., Dec. 16 -- United States Patent no. 12,496,624, issued on Dec. 16, was assigned to Ridge Tool Co. (Elyria, Ohio).
"Torque limiter for powered drain cleaner" was invented by Michael J. Rutkowski (North Royalton, Ohio), Mitchell Barton (Richfield, Ohio), Alex Michael Cole (Columbia Station, Ohio), Donald M. Embree (Akron, Ohio), Nicholas Christopher Mavros (Columbia Station, Ohio) and Jeffrey Szucs (Columbia Station, Ohio).
According to the abstract* released by the U.S. Patent & Trademark Office: "A torque limiter and a retrievable chain knocker tool, each separately configured for use with a drain cleaning apparatus are described. The drain cleaning apparatus includes a drum housing defining an interior region, a cable ca...