Ignition system with inductor connected between breaker points and semiconductor device

Claim 1

A TRANSFORMER COUPLED IGNITION SYSTEM FOR USE WITH A VEHICULAR ELECTRICAL SYSTEM FOR AN INTERNAL COMBUSTION ENGINE, WHICH ELECTRICAL SYSTEM INCORPORATES A D.C. VOLTAGE SOURCE AND INTERMITTENTLY OPERABLE BREAKER MEANS, SAID IGNITION SYSTEM INCLUDING IN COMBINATION, AN IGNITION COIL FOR SUPPLYING HIGH VOLTAGE PULSES TO THE INTERNAL COMBUSTION ENGINE, SEMICONDUCTOR SWITCHING MEANS ADAPTED FOR CONNECTION IN SERIES WITH SAID IGNITION COIL ACROSS THE VOLTAGE SOURCE TO INTERRUPT THE CURRENT IN SAID IGNITION COIL AND CAUSE THE SAME TO PRODUCE HIGH VOLTAGE PULSES, TRANSFORMER MEANS HAVING A PRIMARY WINDING CONNECTED BEBTWEEN THE VOLTAGE SOURCE AND THE BREAKER MEANS AND A SECONDARY WINDING CONNECTED TO SAID SEMICONDUCTOR SWITCHING MEANS AND SUPPLYING CONTROL PULSES THERETO IN RESPONSE TO THE OPERATION OF THE BREAKER MEANS, AND IN DUCTANCE MEANS CONNECTING SAID SEMICONDUCTOR SWITCHING MEANS TO THE BREAKER MEANS IN SHUNT WITH THE COUPLING THEREBETWEEN THROUGH SAID TRANSFORMER MEANS, SAID INDUCTANCE MEANS PROVIDING DIRECT COUPLING OF SAID SEMICONDUCTOR SWITCHING MEANS ACROSS THE VOLTAGE SOURCE THROUGH THE BREAKER POINTS AT RELATIVELY LOW SPEEDS OF OPERATION OF THE BREAKER MEANS.