Burner control apparatus

Claim 1

BURNER CONTROL APPARATUS FOR USE WITH A FUEL BURNER UNIT, COMPRISING; AN ELECTROMAGNETIC RELAY HAVING A MOVABLE ARMATURE AND A PAIR OF MAGNETIC FLUX PATHS DEFINED BY A FIRST POLE HAVING A FIRST WINDING AND A SECOND POLE HAVING A SECOND WINDING, SAID FIRST AND SECOND POLES BEING ASSOCIATED WITH SAID ARMATURE IN THE ENERGIZED AND THE DEENERGIZED POSITIONS RESPECTIVELY OF SAID ARMATURE, MEANS BIASING SAID ARMATURE TO NORMALLY ASSUME SAID DEENERGIZED POSITION, NORMALLY OPEN SWITCH MEANS CONTROLLED BY SAID ARMATURE TO BE CLOSED UPON SAID ARMATURE ASSUMING SAID ENERGIZED POSITION, SAID SWITCH MEANS BEING ADAPTED TO BE CONNECTED TO ENERGIZE THE FUEL BURNER UNIT UPON SAID SWITCH MEANS BEING CLOSED; MEANS CONNECTING SAID FIRST CONTROL WINDING TO BE ENERGIZED UPON A NEED FOR OPERATION OF THE FUEL BURNER UNIT TO NORMALLY CAUSE SAID ARMATURE TO MOVE TO SAID ENERGIZED POSITION TO CLOSE SAID SWITCH MEANS, ELECTRONIC FLAME DETECTING MEANS INCLUDING A CONTROLLABLE CURRENT CONDUCTING DEVICE HAVING AN INPUT AND AN OUTPUT, FLAME SENSING MEANS ADAPTED TO SENSE THE PRESENCE OR ABSENCE OF FLAME AT THE FUEL BURNER UNIT, MEANS CONNECTING SAID FLAME SENSING MEANS TO THE INPUT OF SAID CURRENT CONDUCTING DEVICE TO RENDER THE SAME NONCONDUCTIVE IN THE ABSENCE OF FLAME AT THE FUEL BURNER UNIT, AND MEANS CONNECTING THE OUTPUT OF SAID CURRENT CONDUCTING DEVICE TO SAID SECOND CONTROL WINDING TO ENERGIZE THE SAME WHENEVER SAID CURRENT CONDUCTING DEVICE IS CONDUCTIVE, SAID SECOND CONTROL WINDING BEING EFFECTIVE TO MAINTAIN SAID ARMATURE IN SAID DEENERGIZED POSITION IN THE EVENT THAT SAID SECOND CONTROL WINDING IS ENERGIZED AT THE TIME THAT SAID FIRST CONTROL WINDING IS ENERGIZED AS A RESULT OF A NEED FOR OPERATION OF THE FUEL BURNER UNIT, SUCH ENERGIZATION OF SAID SECOND CONTROL WINDING BEING INDICATIVE OF A MALFUNCTION OF SAID ELECTRONIC FLAME DETECTING MEANS.