Burner control apparatus

Claim 1

BURNER CONTROL APPARATUS FOR USE WITH A FUEL BURNER UNIT HAVING A FUEL BURNER AND A BLOWER TO SUPPLY AIR THERETO FOR PURPOSES OF FIRST PURGING THE FUEL BURNER UNIT OF UNBURNED FUEL PRIOR TO THE IGNITION OF THE FUEL BURNER AND TO THEREAFTER SUPPLY COMBUSTION AIR, THE APPARATUS COMPRISING; CONTROL MEANS HAVING AN ELECTRICALLY ENERGIZABLE ACTUATOR AND ADAPTED UPON ENERGIZATION THEREOF TO ENERGIZE THE BLOWER; SAFETY CUTOUT MEANS HAVING AN ELECTRICALLY ENERGIZABLE ACTUATOR AND HAVING MEANS ADAPTED TO BE ACTUATED AFTER A TIME PERIOD OF OPERATIVE ENERGIZATION OF SAID ACTUATOR; A SOURCE OF VOLTAGE, ENERGIZING CIRCUIT MEANS FOR SAID CONTROL MEANS ACTUATOR CONNECTING SAID SAFETY CUTOUT MEANS ACTUATOR IN SERIES WITH SAID CONTROL MEANS ACTUATOR TO SAID SOURCE OF VOLTAGE, THE IMPEDANCES OF SAID ACTUATORS BEING SUCH THAT WHILE CONNECTED IN SERIES SAID SAFETY CUTOUT MEANS ACTUATOR IS MAINTAINED OPERATIVELY DEENERIZED WHILE SAID CONTROL MEANS ACTUATOR IS OPERATIVELY ENERGIZED TO ENERGIZE THE BLOWER; ELECTRICALLY ENERGIZABLE TIMING MEANS, CIRCUIT MEANS CONTROLLED BY SAID CONTROL MEANS EFFECTIVE TO OPERATIVELY ENERGIZE SAID TIMING MEANS UPON ENERGIZATION OF SAID CONTROL MEANS ACTUATOR, AND MEANS CONTROLLED BY SAID TIMING MEANS ADAPTED A TIME PERIOD AFTER ENERGIZATION THEREOF TO ENERGIZE THE FUEL BURNER AND TO OPERATIVELY ENERGIZE SAID SAFETY CUTOUT MEANS ACTUATOR TO THEREBY INITIATE SAID TIME PERIOD OF OPERATIVE ENERGIZATION OF SAID SAFETY CUTOUT MEANS ACTUATOR.