PERISTALTIC PUMP Russian patent published in 1998 - IPC

FIELD: chemical, petrochemical, food-processing industry, medicine, in particular, dosage of different media, including corrosive and sterile media. SUBSTANCE: peristaltic pump has cylindrical housing with suction and delivery unions, flexible hose of round section and rotating rotor with pinch rollers. Flexible hose is loosely placed within pump working cavity so that it may be pulled by rollers and suction and delivery unions. Hose ends are secured on unions. Both unions are provided with springs perceiving pulling force and providing returning of unions to the initial state. EFFECT: increased efficiency, prolonged service life and simplified construction. 2 dwg