Patent ID: 7159535
Filing Date: 2007-01-09
Classification: B05D,B27N,F26B

Abstract:
1. A catalytically powered oven for heating and curing powder coatings on a piece of porous fiberboard having at least one face surface on each side thereof and opposite side edges to which said coating is applied, said oven comprising, in combination: a pair of half-sections each of which is a mirror image of the other; means for transporting a piece of said fiberboard in a vertical position along a centerline between said pair of half-sections; each of said half sections comprising: a framework, said framework including a back panel and a pair of side panels one on each side of said back panel; a first row of infrared catalytic heaters supported on one of said pair of side panels and arranged to apply heat directly onto one of said opposite side edges of said fiberboard; a second row of infrared catalytic heaters supported on the other of said pair of side panels and arranged to apply heat directly onto the other of said opposite side edges of said fiberboard; and a third row of infrared catalytic heaters supported on said back panel and arranged to apply heat directly onto said at least one face surface of said fiberboard, said third row of infrared catalytic heaters being spaced from said at least one face surface a sufficient distance that will limit the amount of heat directed to said at least one face surface and allow said coating at said side edges of said fiberboard to cure at substantially the same rate as said coating on said at least one face surface of said fiberboard.