Transistor pulse stretching circuit timed by an l-c ringing circuit

Claim 1

IN COMBINATION, A TRANSISTOR HAVING BASE, EMITTER AND COLLECTOR REGIONS, A CAPACITOR AND AN INDUCTOR CONNECTED IN SERIES BETWEEN SAID BASE AND SAID EMITTER REGIONS, A SOURCE OF AN INPUT PULSE, CIRCUIT MEANS FOR APPLYING SAID INPUT PULSE TO SAID CAPACITOR TO CHARGE SAID CAPACITOR TO AN INITIAL POTENTIAL, SAID CIRCUIT MEANS INCLUDING A SERIALLY CONNECTED DIODE POLE IN A DIRECTION TO THEREAFTER PREVENT THE DISCHARGE OF SAID CAPACITOR THROUGH SAID CIRCUIT MEANS, SAID INITIAL POTENTIAL BEING OF APPROPRIATE POLARITY TO ALLOW SAID CAPACITOR TO DISCHARGE ONE HALF-CYCLE, OF OSCILLATORY CURRENT THROUGH A PATH COMPRISING SAID INDUCTOR AND THE JUNCTION OF SAID BASE AND EMITTER REGIONS, MEANS INCLUDING A DAMPIJG RESISTANCE CONNECTED IN PARALLEL WITH SAID JUNCTION FOR SUPRESSING THE FLOW OF FURTHER OSCILLATORY CURRENTS FOLLOWING SAID ONE HALF-CYCLE, AND A SOURCE OF AN OPERATING POTENTIAL AND AN OUTPUT CIRCUIT CONNECTED IN SERIES BETWEEN SAID EMITTER AND COLLECTOR REGIONS WHEREBY SAID OUTPUT CIRCUIT IS ENERGIZED DURING SAID ONE HALF-CYCLE OF OSCILLATORY CURRENT.