Burner igniter system

Claim 1

IN AN AIR HEATER FURNACE CHAMBER IN WHICH THE PILOT BURNER IS POSITIONED IN A CURRENT OF A LARGE VOLUME OF AIR CHARGED TO THE HEATER FURNACE AT A FAST RATE OF FLOW SUFFICIENT TO INHIBIT IGNITION OF FLUID FUEL ADJACENT TO THE PORTS OF SAID PILOT BURNER AND WHICH INCLUDES A FLUID FEED LINE TO SAID BURNER AND A VALVE MEANS IN THE FEED LINE CAPABLE OF CLOSING TO PROHIBIT FLOW OF FLUID FUEL THROUGH SAID FEED LINE AND CAPABLE OF OPENING TO PERMIT A SUFFICIENT AMOUNT OF FLUID FUEL TO FLOW THROUGH SAID FEED LINE AND FROM SAID PORTS INTO SAID CHAMBER TO FORM THROUGHOUT SAID CHAMBER A MIXTURE OF SAID FLUID FUEL AND AIR IN AN EXPLOSIVE FUELTO-AIR RATIO, THE COMBINATION WITH SAID FUEL FEED LINE OF A RESTRICTED CONDUIT IN PARALLEL FLOW RELATION TO SAID VALVE AND ADAPTABLE TO BY-PASS SAID VALVE MEANS, SAID RESTRICTED CONDUIT ADAPTED TO DECREASE THE VOLUME RATE OF FLOW OF FUEL TO SAID BURNER TO A VOLUME RATE OF FLOW BASED ON SAID LARGE VOLUME OF AIR TO FROM ABOUT 2 TO ABOUT 90% OF THE LOWEST COMBUSTIBLE FUEL TO AIR RATIO, AN ELECTRICALLY ENERGIZABLE IGNITER ELEMENT CAPABLE OF CONTINUOUS ENERGIZATION AND POSITIONED ADJACENT THE PORTS OF SAID PILOT BURNER AND WITHIN THE AREA OF SAID CHAMBER CONTAINING A COMBUSTIBLE FUEL AND AIR MIXTURE, SHIELD MEANS ATTACHED TO SAID IGNITER ELEMENT FOR PROTECTING SAID IGNITER ELEMENT FROM THE DEPOSITION OF PRODUCTS OF COMBUSTION THEREON, AND MEANS WHEREBY SAID IGNITER ELEMENT MAY BE CONTINUOUSLY ENERGIZED WHEN SAID VALVE MEANS IS CLOSED AND FLUID FUEL FEED IS FLOWING TO SAID PILOT BURNER THROUGH SAID RESTRICTED CONDUIT, WHEREBY SAID PILOT BURNER MAY BE IGNITED.