ALEXANDRIA, Va., Nov. 3 -- United States Patent no. 12,778,371, issued on Nov. 3, was assigned to Hako GmbH (Bad Oldesloe, Germany).
"Suction foot assembly for a floor cleaning machine" was invented by Christian Tabeling (Stockelsdorf, Germany), Gerd Stahlkopf (Buchen, Germany) and Heinrich Katenhusen (Bad Oldesloe, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A suction foot assembly having a suction foot with a suction foot holder, a coupling portion, and a suction foot interface. One of the coupling portion and a coupling end of the suction foot interface has a pin portion. The other of the coupling portion and the coupling end has first and second clamping elements that are mutually opposite, ha...