Patent ID: 7699602
Filing Date: 2010-04-20
Classification: C03B,F23D,F23Q,Y02E

Abstract:
1. A burner for depositing soot on a glassware mold, which includes: a burner block of electrically conductive construction, said burner block having an opening and separate passages extending through said burner block for feeding fuel and oxidant to said opening, a burner nozzle of electrically conductive construction removably received in said opening, said burner nozzle having an annular array of individual gas outlet ports, a fuel passage aligned with a said first of said passages in said burner block and connected to a first plurality of said outlet ports, an oxidant passage aligned with a second of said oxidant passages in said burner block and connected to a second plurality of said outlet ports, and an electrode passage extending through said burner nozzle centrally within said annular array of gas outlet ports, said first plurality of outlet ports alternating with said second plurality of outlet ports around said annular array such that said array presents alternate fuel and oxidant outlet ports around said annular array, an ignition electrode assembly removably received in said electrode passage in said burner nozzle for igniting fuel and oxidant emerging from said outlet ports, said electrode assembly including a rod-shaped ignition electrode surrounded by an insulating sleeve insulating said electrode from said burner nozzle, an electrical coil carried by said burner block, said electrical coil having an input terminal for receiving an ignition signal and an output terminal coupled to said ignition electrode, and a conductor plate electrically connected to said output terminal of said electrical coil, said ignition electrode being electrically connected to said conductor plate, wherein said electrical coil is potted within a housing mounted on said burner block, said output terminal of said coil being connected to said conductor plate and said ignition electrode assembly being threadably received onto said conductor plate, and wherein said first plurality of outlet ports comprise individual circular outlet ports, and said second plurality of outlet ports comprise individual slots that alternate within said array of outlet ports with said circular outlet ports and have long dimensions oriented radially of said annular array so as to produce a mixture of fuel and oxidant with a central portion that is oxidant rich.