Patent ID: 6244853
Filing Date: 2001-06-12
Classification: A45D,B23K,F23C,F23D

Abstract:
A gas burner comprising:a gas catalytic combustion element for receiving fuel gas and for converting the fuel gas to heat by a catalytic reaction, the catalytic element defining a hollow core having a longitudinally extending central axis, the catalytic element terminating in an upstream plane at its upstream end and extending in a downstream direction therefrom, the upstream plane extending transversely of the central axis, and the hollow core extending into the catalytic element from the upstream plane through which fuel gas is delivered into the hollow core,an ignition means comprising an ignition electrode for forming a spark on a voltage being applied thereto for igniting the fuel gas to burn in a flame for raising at least a portion of the catalytic element to its ignition temperature, the ignition electrode terminating in an electrode tip and extending into the hollow core of the catalytic element with the electrode tip disposed intermediate the upstream plane and a downstream end of the hollow core for co-operating with the catalytic element for locating the flame in the hollow core of the catalytic element so that as the catalytic element progressively reaches its ignition temperature, the flame is starved of fuel gas and is thereby extinguished.