ALEXANDRIA, Va., April 21 -- United States Patent no. 12,605,659, issued on April 21, was assigned to FSM Frankenberger GmbH (Berlin).

"Conveyor-belt filtering device for mechanically cleaning a liquid" was invented by Guido Frankenberger (Wetzlar, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "A conveyor-belt filtering device includes an endless filtering belt, which has at least one filtering element, a frame, a lower deflection apparatus and at least one upper deflection apparatus. The endless filtering belt has at least one collecting element, which is adapted for collecting foreign solids, in particular sand, stones, pebbles or the like, which are present in the liquid, in particular in an area ...