WEIGHT DOSER Russian patent published in 1994 - IPC

FIELD: chemical industry. SUBSTANCE: weight doser has housing, hopper with drop bottom and coarse-adjustment material dispenser and fine-adjustment material dispenser, both disposed below bottom. Each dispenser is formed as dosing rotor. Rotors are mounted on common shaft and form sluice device. Fine- adjustment dispenser rotor is rigidly secured on shaft and coarse- adjustment dispenser rotor is connected with shaft through electromagnetic coupling, which is connected with weight sensors. EFFECT: simplified construction and enhanced reliability in operation. 3 dwg