Patent ID: 9115890
Filing Date: 2015-08-25
Classification: F23D,F23Q,Y10T

Abstract:
1. An igniter for a portable gas-fired heat gun, comprising: a heat gun diffuser having a slender flexible electrode extending in a downstream direction along at least a portion of a heat gun diffuser, the electrode being affixed to the diffuser, an end of the electrode extending along a longitudinal axis with a tip terminating downstream of the diffuser, at least part of the electrode having a straight free end portion that extends along the longitudinal axis and a portion extending and mounted to the diffuser at a transverse direction to the longitudinal axis, and configured for flexing in an upstream direction with axial spring force effect, such that said at least straight free end portion that extends along the longitudinal axis can translate along the longitudinal axis; and a burner chamber assembly configured to be attached and removed from the heat gun diffuser, the burner chamber assembly including a flame holder and an insulator with an electrically insulated bore therethrough constructed to accept the tip of the electrode which is removably slidably insertable completely therethrough in a downstream direction, the tip of the electrode extending downstream through the insulated bore into a burner chamber downstream of the flame holder when the burner chamber assembly is attached to the heat gun diffuser, a tapered counter bore of the insulator being located at an upstream end of the insulated bore and configured for facilitating insertion of the tip of the electrode into the insulated bore.