Edward J Hunter

US Patent:

46449078, Feb 24, 1987

Filed:

Nov 29, 1985

Appl. No.:

6/802834

Inventors:

Edward H. Hunter - Westbury NY

International Classification:

F22B 1500
F22B 2500
F22B 3710

US Classification:

122235C

Abstract:

A composite boiler tube has a fireside surface and a water-side surface and comprises a metallic tubular member having an outer surface and an inner surface. One of the metallic surfaces has an efficiency enhancing coating adhered thereto and providing the composite tube with the fireside surface or the waterside surface. A method of enhancing the efficiency of a boiler tube which comprises a metallic tubular member having an outer surface and an inner surface includes the step of applying a coating of efficiency enhancing material adhered to one of the metallic tube member surfaces, thus to produce a composite boiler tube.