Patent ID: 6139312
Filing Date: 2000-10-31
Classification: F23D

Abstract:
A gas burner comprising an elongated tubular body with a sidewall, having outer end edges between which there are apertures which pass through the sidewalls; a flange with a central through hole; and a base cap opposite the flange; the sidewall, flange and base cap being attached to one another in such a way that together they define a first chamber in which a flow of gas and air, received through the hole in the flange, exits the tubular body through the apertures in the sidewall, wherein the flange and base cap have guides, these being opposite one another, and wherein the sidewall is wound in a spiral shape and has juxtaposed longitudinal edges, these being fluid tight, and outer end edges inserted in the guides in the flange and cap, said outer end edges being mounted in the guides with a given amount of play, designed to allow expansion and contraction of the perimeter of the sidewall according to changes in the temperature of the tubular body.