Patent ID: 6872919
Filing Date: 2005-03-29
Classification: F24C,H05B

Abstract:
1. A convection cooking appliance comprising: an oven cavity; an air channel assembly extending about at least a portion of and being in fluid communication with the oven cavity; a blower element for developing a flow of air within the air channel assembly and through the oven cavity; at least one heating unit for heating the flow of air; and a catalyst positioned within the air channel assembly and adapted to receive a flow of cooking byproducts developed during cooking of food products in the oven cavity, said catalyst including a first stage defined by a first honeycomb structure having a first plurality of openings, a second stage defined by a second honeycomb structure having a second plurality of openings which are multiple times smaller than the first plurality of openings, and a gap separating said first and second honeycomb structures, wherein the first honeycomb structure is arranged to initially vaporize the cooking byproducts which are then distributed to the second honeycomb structure where the vaporized cooking byproducts are broken down into carbon dioxide and water prior to being expelled from the catalyst.