Transistorized ignition system with a bistable electromagnetic switch

Claim 1

AN IGNITION SYSTEM FOR AN INTERNAL COMBUSTION ENGINE COMPRISING, A SPARK PLUG, AN IGNITION COIL INCLUDING A PRIMARY WINDING AND A SECONDARY WINDING, SAID SECONDARY WINDING BEING CONNECTABLE TO SAID SPARK PLUG, A SOURCE OF ELECTRICAL ENERGY, A TRANSISTOR HAVING AN EMITTER, A COLLECTOR AND A BASE, SAID PRIMARY WINDING OF SAID IGNITION COIL, SAID SOURCE OF ELECTRICAL ENERGY AND SAID COLLECTOR AND EMITTER OF SAID TRANSISTOR BEING CONNECTED IN SERIES, MEANS CONNECTING SAID BASE OF SAID TRANSISTOR WITH SAID SOURCE OF ELECTRICAL ENERGY FOR PROPERLY BIASING SAID TRANSISTOR, MEANS CONNECTED IN CIRCUIT WITH THE BASE OF SAID TRANSISTOR FOR INTERRUPTING CURRENT FLOW THROUGH SAID BASE, A FERROMAGNETIC CORE, MEANS CONNECTED IN CIRCUIT WITH SAID TRANSISTOR AND SAID SOURCE OF ELECTRICAL ENERGY FOR SWITCHING SAID FERROMAGNETIC CORE FROM ONE DIRECTION OF MAGNETIZATION TO THE OTHER DIRECTION OF MAGNETIZATION IN RESPONSE TO THE INTERRUPTION OF CURRENT FLOW THROUGH SAID BASE, AN OUTPUT WINDING WOUND UPON SAID FERROMAGNETIC CORE AND CONNECTED TO SAID EMITTER AND SAID BASE, SAID OUTPUT WINDING BEING WOUND UPON SAID FERROMAGNETIC CORE IN A DIRECTION TO CAUSE A CURRENT TO FLOW THROUGH SAID EMITTER AND BASE IN A DIRECTION OPPOSITE TO CURRENT FLOW THROUGH THE BASE AND THE EMITTER WHEN SAID TRANSISTOR IS IN A CONDUCTING STATE WHEREBY SAID TRANSISTOR IS BROUGH RAPIDLY TO ITS NONCONDUCTING STATE.