ALEXANDRIA, Va., Oct. 6 -- United States Patent no. 12,752,138, issued on Oct. 6, was assigned to PAL S.R.L. (Ponte di Piave, Italy).

"Screening machine for screening solid material" was invented by Antonio Dal Ben (Ponte di Piave, Italy).

According to the abstract* released by the U.S. Patent & Trademark Office: "Screening machine (10) for screening solid materials, comprising a screening box (12) shaped so as to have a plurality of perimeter walls (16, 17, 19, 21), an upper wall (15) and an opposite bottom wall (13), in order to make said solid materials to be screened flow inside it. Said screening machine (10) comprises at least one active anti-propagation device (24) integral with said screening box (12)."

The patent was filed on Ju...