Ferroresonant voltage regulating and harmonic suppressing circuit

Claim 1

IN A VOLTAGE REGULATING CIRCUIT OF THE FERRORESONANT TYPE, IN COMBINATION, A SATURABLE CORE TRANSFORMER INCLUDING AN INPUT WINDING, A TUNED WINDING AND AN OUTPUT WINDING, A PLURALITY OF SERIES RESONANT CIRCUITS EACH COMPRISING A CAPACITOR AND AN INDUCTOR, EACH TUNED TO A DIFFERENT HARMONIC OF THE INPUT VOLTAGE SUPPLIED TO SAID INPUT WINDING AND EACH CONNECTED ACROSS SAID TUNED WINDING, LOAD COMPENSATING WINDINGS MEANS COUPLED TO SAID INPUT WINDING FOR APPLYING A FIRST PORTION OF SAID INPUT VOLTAGE BETWEEN SAID OUTPUT WINDING AND A LOAD CONNECTED THEREACROSS AND IN OPPOSITION TO THE VOLTAGE ON SAID OUTPUT WINDING, HARMONIC CANCELING WINDING MEANS ALSO COUPLED TO SAID INPUT WINDING FOR APPLYING A SECOND PORTION OF SAID INPUT VOLTAGE BETWEEN SAID TUNED WINDING AND SAID SERIES RESONANT CIRCUITS AND IN OPPOSITION TO THE VOLTAGE ON SAID TUNED WINDING WHEREBY HARMONIC DISTORTION IS PREVENTED FROM APPEARING ON THE LOAD VOLTAGE.