D. c. igniter system

Claim 1

AN IGNITER SYSTEM FOR GAS BURNERS COMPRISING: A FIRST CONDUCTOR AND A SECOND CONDUCTOR, A SOURCE OF D.C. POWER AND A THERMOSTATICALLY CONTROLLED SWITCH CONNECTED IN SERIES BETWEEN SAID FIRST CONDUCTOR AND SAID SECOND CONDUCTOR, A TIME DELAY RELAY CONNECTED BETWEEN SAID FIRST AND SECOND CONDUCTOR, SAID TIME DELAY RELAY HAVING NORMALLY CLOSED CONTACTS AND OPERATING TO OPEN SAID CONTACTS A PREDETERMINED TIME INTERVAL AFTER BEING ENERGIZED, A SECOND RELAY CONNECTED IN SERIES WITH THE NORMALLY CLOSED CONTACTS OF SAID TIME DELAY RELAY BETWEEN SAID FIRST AND SECOND CONDUCTORS, SAID SECOND RELAY HAVING NORMALLY OPEN CONTACTS AND OPERATING TO CLOSE SAID CONTACTS WHEN ENERGIZED, A GLOW COIL FOR IGNITING BURNER GAS AND A THIRD RELAY CONNECTED IN SERIES WITH THE NORMALLY OPEN CONTACTS OF SAID SECOND RELAY BETWEEN SAID FIRST AND SECOND CONDUCTORS, SAID THIRD RELAY HAVING NORMALLY OPEN CONTACTS AND OPERATING TO CLOSE SAID CONTACTS WHEN ENERGIZED, A VALVE OPERABLE TO CONTROL A FLOW OF BURNER GAS TO SAID GLOW COIL, A SOLENOID OPERABLE WHEN ENERGIZED TO OPEN SAID VALVE AND CONNECTED IN SERIES WITH THE NORMALLY OPEN CONTACTS OF SAID THIRD RELAY BETWEEN SAID FIRST AND SECOND CONDUCTORS, A FOURTH RELAY CONNECTED IN PARALLEL WITH SAID SOLENOID AND HAVING NORMALLY OPEN CONTACTS CONNECTED IN PARALLEL WITH THE NORMALLY OPEN CONTACTS OF SAID THIRD RELAY, SAID FOURTH RELAY OPERATING TO CLOSE ITS NORMALLY OPEN CONTACTS WHEN ENERGIZED.