ALEXANDRIA, Va., June 25 -- United States Patent no. 12,338,077, issued on June 24.
"Multipurpose conveyor system" was invented by Frederick Alex Garfinkel (Johnstown, Pa.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A conveyor system and a method for transporting proppants and drill cuttings to a blender and dryer respectively in oil and gas fields. The conveyor system includes an upper conveyor belt aligned horizontally and encased within a frame. The conveyor system also includes a lower conveyor belt positioned below the upper conveyor belt. The lower conveyor belt is configured to extend outwards from the frame and angularly lifted. In use, the lower conveyor belt is lifted to the level of the blender...