DEVICE FOR PROTECTING METAL SURFACES OF OBJECTS FROM ATMOSPHERE CORROSION Russian patent published in 1995 - IPC

FIELD: electrochemical protection of metals from corrosion. SUBSTANCE: device has secondary voltage converter 1, current source 2, current-limiting circuit 3, pulsed voltage stabilizer 4, short-circuit protection unit 5, pulse-width modulator 6, pulse generator 7, switch-off circuit 8, switch-on 9, reference voltage 10, comparators 11 and 12, comparator circuits 13 and 14, frequency controlled generator 15, analog commutator 16, resistor 17, voltage stabilizer 18, trigger circuit 19, frequency divider 20, resistor array 21, protective electrodes 22, comparison electrodes 23, 1-2-312-9-6-4-5-17-16-22-2122-19-7-8-1-23; 17-11-8; 7-9; 10-14-15; 17-14; 10-18; 10-3; 10-12; 10-5-13-6; 10-13; 20-15-16. EFFECT: increased efficiency in protecting metal surfaces from corrosion. 1 dwg