AIR LIFT Russian patent published in 1995 - IPC

FIELD: lifting-and-conveying mechanical engineering. SUBSTANCE: air lift has two tubular housings in which the lifting device consisting of a flexible pipe and a drive drum is placed. One end of the pipe is fastened on the drum, the other end is turned inside out and is secured along the perimeter of the upper hole of the housing. A tore and a ball-type support are placed inside the pipe. EFFECT: enhanced efficiency. 1 dwg