ALEXANDRIA, Va., June 12 -- United States Patent no. 12,295,531, issued on May 13, was assigned to Alfred Karcher SE & Co. KG (Winnenden, Germany).
"Floor cleaning apparatus" was invented by Melanie Ritscher (Rudersberg, Germany) and Alexander Gilich (Stuttgart, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A floor cleaning apparatus is provided. The floor cleaning apparatus includes a liquid container, which includes a container wall and a container inner space, a tank rinsing device, which includes an inlet and outlets that are in flow connection therewith, through which outlets rinsing liquid is dispensable into the container inner space, wherein the tank rinsing device includes a rinsing channel...