Patent ID: 9080777
Filing Date: 2015-07-14
Classification: F24C,F24D

Abstract:
1. A radiant tube heater system for heating a covered space in a building or similar structure comprising: a single tubular cylindrical conduit through which hot fluid including combustion gases flow from one end to another end of the conduit; a plurality of support structures for supporting the conduit at spaced locations along its length; an insulated reflector extending lengthwise along said tubular conduit and constructed and shaped to reflect and disperse radiant heat waves from the conduit, said reflector having a first longitudinal centerline located above a second longitudinal centerline of said conduit, said first longitudinal centerline defining two similar half sections extending in opposite transverse directions from said first longitudinal centerline, each half section including a respective generally planar central portion that slopes upwardly from said first longitudinal centerline during use of the heater system, a second generally planar reflecting portion adjacent to the central portion, a third generally planar reflection portion adjacent to the second portion and a fourth generally planar reflecting portion adjacent to the third portion, the portions being disposed in angled relation to one another such that the central portions define an outwardly facing angle of about 100°, the second portions are disposed at about 126° to the central portions, the third portions are disposed at about 160° to the second portions and the fourth portions are disposed at about 150° to the third portions, and wherein D:D1:D2:D3:D4:D5 is about 40:15:18:28:40:29 D is the outer diameter of the conduit D1 is the distance between the first longitudinal centreline and the junction of the central portion and the second portion D2 is the distance between the junction of the central portion and the second portion and the junction of the second portion and the third portion D3 is the distance between the junction of the second portion and the third portion and the junction of the third portion and the fourth portion D4 is the distance between the junction of the third portion and the fourth portion and the terminus of the fourth portion D5 is the distance between the axis of the conduit and the first longitudinal centreline said tubular conduit extends approximately horizontally during use of the heater system and has lower and upper longitudinal extremities in the horizontal position, said lowermost extremity being aligned with two opposite bottom edges of the reflector and said upper extremity being less than one inch from said first longitudinal centerline; said reflector is made of polished aluminized steel sheet metal or polished Feran; and said reflector is insulated with a layer of ceramic insulation extending over said outer surface.