ALEXANDRIA, Va., June 10 -- United States Patent no. 12,290,839, issued on May 6, was assigned to Vibra Maschinenfabrik Schultheis GmbH & Co. (Offenbach, Germany).
"Vibratory screener" was invented by Winfried Schultheis (Offenbach, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A vibratory screener includes a screen carrier frame having inner and outer circumferences, a horizontal screen for separation of solid particles within and vertically supported by the frame, one or more vibration motors on the outer circumference of the screen carrier frame and configured to generate vibration perpendicular to the screen, and at least two internal annular disks each having an inner rim and an outer rim. Each...