ALEXANDRIA, Va., July 14 -- United States Patent no. 12,679,472, issued on July 14, was assigned to Illinois Tool Works Inc. (Glenview, Ill.).
"Sealing plug" was invented by Christoph Leidig (Rothenburg ob der Tauber, Germany) and Jan Muller (Wurzburg, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "Closing plug for closing holes in objects, in particular for closing holes in vehicle bodies, wherein the closing plug has at least one first circumferential wall which encloses a cavity, wherein a transverse wall is present in the cavity between the circumferential side wall, which transverse wall has an outer shape which corresponds to the shape of the cavity and is attached to the side wall in a circumf...