Abstract: A high intensity gas-fired infrared emitter including a frame having a plurality of side walls, an open bottom, and an open top, a flame arrestor mounted inside the frame and including a bottom, a top surface having a recess, and a plurality of apertures extending from the bottom to the recessed top surface, and a cellular surface panel formed of a plurality of cells and mounted inside the recess of the flame arrestor such that the plurality of apertures of the flame arrestor form pathways which extend into the cellular surface panel.

Abstract: A gas fired infrared radiation emitter that contains a frame, a screen assembly attached to the frame, and a device for locking the screen assembly to the frame. The screen assembly contains a support rod structure and at least four attachment rings attached to a screen. Each of the attachment rings is contiguous with a portion of the screen and, at the point at which each such attachment ring is contiguous with the screen, forms a screen contact point. The distance between any one screen contact point and the closest adjacent screen contact point does not exceed 75 millimeters.

Abstract: A gas-fired infrared radiation emitter with a frame, a screen removably attached to the frame, and a device for locking the screen to the frame. At least three receptacles are connected to each side of the frame, and at least one support is connected to each end of the frame. Three retaining bars extend from one side of the frame to the other and are used to lock secure the screen between such bars and the frame; and a fourth retaining bar extends from one end of the frame to the other and also secures the screen.

Abstract: An apparatus for drying a moving substrate containing a multiplicity of infrared emitters and a detection emitter and a device for supplying a mixture of air and gas to these emitters. The detection emitter contains an emitter body with a diffuser for distributing a fuel-oxygen containing gas mixture, a primary radiator having a combustion surface integrally connected to the emitter body, a first detection electrode, and a second detection electrode; each of these detection electrodes sends a signal to a control means when it senses the presence of flame-induced ionization. If the control means receives a signal from one but not both of these detection electrodes, it will continue supplying the air/gas mixture to the emitters. However, only when the control means ceases receiving a signal from both of the detection electrodes will it ceases allowing the supply of the air/gas mixture to the emitters.

Abstract: A gas fired infrared radiation emitter which contains a back-body provided with a distributor, a primary radiator having a combustion surface, and frame which contains four receptacles, each of which is integrally connected to the frame. A screen is removably attached to the frame receptacles by means of two bars, each of which is disposed within the receptacles and is free to move within the receptacles in either direction for a distance of at least about 0.15 inches. Stop surfaces are provided, however, for limiting the amount of longitudinal movement of the bars within the receptacles. The bars each have a length which does not exceed the length of the frame; and they can readily be removed from the receptacles.

Abstract: A process for drying a web of material moving at a speed of at least about 150 feet per minute. In the first step of the process, a web of material is contacted with a first mixture of air and flue gas while passing the web under a first air nozzle. Thereafter, a portion of the first air/flue gas mixture is exhausted through a first exhaust nozzle disposed less than 12 inches away from the first air nozzle. Thereafter, the web is passed under a multiplicity of gas fired infrared radiation emitting burners while contacting said moving web with infrared radiation and flue gas and heating said moving web to a temperature of from about 100 to about 280 degrees Fahrenheit. Thereafter, the web is contacted with a second mixture of air and flue gas while passing it under a second air nozzle.