Abstract: A combustion device which includes a forward section in which a baffle has been inserted for stalling the air and fuel mixture as it passes through the torch tip, generating a linear flame. The baffle is designed to include a substantially circular inner portion of wire screen, sintered powdered metal, or ceramic material, surrounded by a solid annular or substantially annular ring. A plurality of ribs extend between the annular ring and the inside of the tube for connecting the annular ring to the tube and for defining a number of outer passages through which air/fuel mixture may pass.

Abstract: A combustion device which includes a forward section in which a baffle has been inserted for stalling the air and fuel mixture as it passes through the torch tip, generating a linear flame. The baffle is designed to include a substantially circular inner portion of wire screen, sintered powdered metal, or ceramic material, surrounded by a solid annular or substantially annular ring. A plurality of ribs extend between the annular ring and the inside of the tube for connecting the annular ring to the tube and for defining a number of outer passages through which air/fuel mixture may pass.

Abstract: A fuel gas combustor which utilizes thermal assisted expansion and mixing of the fuel gas and a combustion supporting gas for more complete combustion and greater heat output. A heat transfer device provides thermal feedback from the flame to the gas expansion zone. The invention is especially useful in hand-held torch tips. In a specific embodiment, the heat transfer device include a heat conducting element, at least the intermediate portion of which is rod shaped and sheathed in a non-conducting envelope.