Patent ID: 8399813
Filing Date: 2013-03-19
Classification: B05D,F16L,F24V,H05B

Abstract:
1. A portable heating apparatus for heating interior surfaces of piping systems before the piping systems are coated, comprising: a portable heating chamber with a heating element having a single inlet end for directing air into the chamber and a single outlet end for emitting heated air therefrom, the chamber providing only a single path of air flow between the single inlet end and the single outlet end; a manifold having a first inlet end a second inlet end for drawing air therethrough, the manifold having a first outlet end and a second outlet end for passing air therefrom, at least one of the first inlet end and the second inlet end being attached to the outlet end of the heating chamber, and wherein at least one of the first outlet end and the second outlet end being attached to an end of a piping system; operator controls that are selected from at least one of: an adjustable heater control for operating and controlling temperature of the heating element in the heating chamber, an adjustable air pressure control for controlling air pressure through the manifold, and an adjustable air flow control for controlling air flow through the manifold, the air flow control including an outlet valve for opening and closing at least one of the first outlet end and the second outlet end of the manifold, wherein the heating apparatus is useful before the piping systems are coated.