Patent ID: 6485294
Filing Date: 2002-11-26
Classification: F23M

Abstract:
In a gas-burning apparatus having a combustion chamber with an inlet and an outlet, a burner spaced from and aligned with the inlet for burning a combustible mixture of gas and air to produce a flame and other products of combustion, and an air mover for drawing the flame and other products of combustion into and through the combustion chamber, a device for reducing NOx emissions from the apparatus, said device comprising a perforate member located in the combustion chamber and having a plurality of holes therein to allow the flame and other products of combustion to pass through said perforate member, said device further including a cup member mounted proximate to the inlet and an attachment member attached at one end thereof to said perforate member and at an opposite end thereof to said cup member, said perforate member being spaced at a predetermined distance from said cup member inwardly along a longitudinal axis of the combustion chamber between the inlet and the outlet.