AUTOMATIC SAMPLING SYSTEM Russian patent published in 1995 - IPC

FIELD: drawing samples of liquids. SUBSTANCE: liquid sampling device has pump with liquid ejector and drive, proportioner with overflow branch pipe, hydraulic distributor, control valves with drives; each control valve has flexible hose, pinching clamp with stop and safety insert. Hydraulic distributor has hoses with control valves; pump has diaphragm, inlet and outlet control valves. Drives of valves and pump are made in form of electric drive lines electrically connected with control unit output and changing their length when electric current flows through them. EFFECT: enhanced efficiency. 4 cl, 2 dwg