Burner ignition and control system

Claim 1

A SPARK IGNITION DEVICE COMPRISING A PAIR OF ELECTRICAL CONTACTING ELEMENTS, MEANS BIASING AT LEAST ONE OF SAID CONTACTING ELEMENTS IN A DIRECTION TO SEPARATE IT FROM THE OTHER, A TENSIONED WIRE CONDUCTOR ARRANGED TO HOLD SAID CONTACTING ELEMENTS IN A CLOSED POSITION AGAINST SAID BIAS AT NORMAL TEMPERATURES, SAID WIRE CONDUCTOR BEING THERMALLY EXPANSIBLE TO ELONGATE SUFFICIENTLY AND AT SUCH RATE DUE TO THERMAL EXPANSION WHEN A PREDETERMINED ELECTRICAL CIRCUIT IS PASSED THERETHROUGH AS TO PERMIT THE OPENING OF SAID CONTACTING ELEMENTS BY SAID BIASING MEANS THEREBY TO DRAW AN ARC BETWEEN SAID ELEMENTS AND TO BREAK THE CIRCUIT, AND SAID WIRE CONDUCTOR HAVING SUCH ELECTRICAL RESISTANCE AS TO ATTAIN THE TEMPERATURE OF FUSION WHEN SAID PREDETERMINED CURRENT IS PASSED THERETHROUGH FOR AN INTERVAL LONGER THAN THAT NORMALLY REQUIRED FOR IT TO EXPAND SUFFICIENTLY TO EFFECT THE OPENING OF SAID CONTACTING ELEMENTS, AND MEANS FOR PASSING SAID PREDETERMINED ELECTRICAL CURRENT THROUGH SAID WIRE CONDUCTOR WHEN SAID CONTACTING ELEMENTS ARE CLOSED AND FOR INCREASING THE VOLTAGE AVAILABLE TO INTENSIFY THE ARC WHEN SAID CONTACTING ELEMENTS SEPARATE COMPRISING A SOURCE OF ELECTRICAL POWER, AN INDUCTANCE LOAD, AND CIRCUIT CONNECTIONS CONNECTING SAID WIRE CONDUCTOR, SAID CONTACTING ELEMENTS, AND SAID INDUCTANCE LOAD IN SERIES RELATIONSHIP ACROSS SAID SOURCE OF POWER.