Patent ID: 6059562
Filing Date: 2000-05-09
Classification: F23D,F23G,F23N

Abstract:
A gas appliance for producing an open flame, comprising:a) an elongated gas tube having a proximal end and a distal end;b) a gas inlet near the proximal end of the elongated gas tube, for connection to a source of combustible gas;c) a nozzle located at the distal end of the elongated tube, for expelling the combustible gas to produce the open flame;d) a flame sensor arranged on the gas appliance at a position where the open flame is detectable by the flame sensor;e) a gas shut-off valve located between the gas inlet and the nozzle, the gas shut-off valve being responsive to absence of the open flame as detected by the flame sensor so that the gas shut-off valve closes when the flame is absent to prevent the combustible gas from flowing through the gas shut-off valve to the nozzle,f) protective members arranged around the flame sensor and the gas shut-off valve for protecting the flame sensor and the gas shut-off valve from damage; andg) an over-ride mechanism which is actuatable to over-ride the gas shut-off valve by providing the combustible gas to the nozzle when the open flame is to be ignited.