Capacitor firing circuit with automatic reset

Claim 1

IN APPARATUS HAVING: (A) A FIRING CAPACITOR, (B) A SOURCE OF CHARGING POTENTIAL, (C) MEANS FOR CHARGING SAID CAPACITOR FROM SAID SOURCE, (D) A SILICON-CONTROLLED RECTIFIER AND A LOAD RESISTOR CONNECTED IN SERIES ACROSS SAID CAPACITOR, AND (E) MEANS FOR APPLYING A FIRING PULSE TO SAID SILICONCONTROLLED RECTIFIER AND FOR THEREBY DISCHARGING SAID CAPACITOR THROUGH SAID LOAD, AN IMPROVEMENT FOR AUTOMATICALLY RESETTING SAID APPARATUS AFTER SAID CAPACITOR HAS DISCHARGED IN RESPONSE TO A FIRING PULSE, SAID IMPROVEMENT COMPRISING: (F) A TRANSISTOR SWITCH HAVING TWO SWITCHING TERMINALS AND A CONTROL TERMINAL, SAID SWITCHING TERMINALS CONNECTED IN SERIES BETWEEN SAID SOURCE OF CHARGING POTENTIAL AND SAID CAPACITOR, SAID SWITCH BEING NORMALLY CONDUCTING, (G) MEANS FOR DERIVING A FIXED-DURATION PULSE FROM THE DISCHARGE OF SAID FIRING CAPACITOR, AND (H) MEANS FOR APPLYING SAID FIXED-DURATION PULSE TO SAID CONTROL TERMINAL OF SAID TRANSISTOR SWITCH TO STOP CONDUCTION THERETHROUGH FOR THE DURATION OF SAID FIXED-DURATION PULSE, (I) WHEREBY THE APPARATUS IS AUTOMATICALLY RESET AFTER EACH DISCHARGE OF SAID CAPACITOR.