HOPPER FOR DIFFICULT-TO-FLOW MATERIALS Russian patent published in 1995 - IPC

FIELD: storage of loose materials. SUBSTANCE: hopper for difficult-to-flow materials has working member made up of interconnected stages arranged horizontally one over the other. Stages are made of flexible members (rods or springs) and are interconnected by flexible members arranged vertically. Working member is connected with hopper by means of springs which are arranged symmetrically in upper and lower portions of hopper. Stage forming members and vertical flexible members are interconnected by hinge joints. EFFECT: enhanced operation reliability, prevention of formation of bridges. 3 dwg