Self-sustaining switch circuits

Claim 1

A CIRCUIT COMPRISING: (A) A SELF-SUSTAINING ELECTRONIC SWITCH ELEMENT HAVING AN ANODE-TO-CATHODE CIRCUIT AND A CONTROL ELECTRODE; (B) A POWER SUPPLY AND AN INDUCTIVE LOAD BOTH IN SERIES WITH SAID ANODE-TO-CATHODE CIRCUIT; (C) MEANS CONNECTED TO SAID INDUCTIVE LOAD AND CHARGED BY SAID POWER SUPPLY WHEN SAID ELECTRONIC SWITCH IS CUT OFF; (D): MEANS FOR GOVERNING THE POTENTIAL OF SAID CONTROL ELECTRODE WHEREBY TO FIRST MAINTAIN SAID ELECTRONIC SWITCH ELEMENT IN A CUT OFF CONDITION AND SUBSEQUENTLY TO TURN ON SAID ELECTRONIC SWITCH ELEMENT; (E) AND A CAPACITOR CONNECTED TO BE CHARGED BY SAID POWER SUPPLY WHEN SAID ELECTRONIC SWITCH ELEMENT IS CUT OFF AND TO DISCHARGE THROUGH SAID ANODE-TOCATHODE CIRCUIT THROUGH A PATH EXCLUDING SAID INDUCTIVE LOAD WHEN SAID ELECTRONIC SWITCH ELEMENT IS TURNED ON WHEREBY THE RATE OF CURRENT BUILT-UP THROUGH SAID ELECTRONIC SWITCH IS INCREASED TO MORE QUICKLY ACHIEVE A SELF-SUSTAINING CONDITION.