Patent ID: 7340992
Filing Date: 2008-03-11
Classification: A21B,A47J

Abstract:
1. An air impingement conveyor oven comprising: (a) a baking case having an interior space, a food input port, a food output port, and having a longitudinal axis extending from the food input port to the food output port; (b) air heating means connected operatively to the baking case, the air heating means being adapted for heating air within the baking case's interior space; (c) a plurality of air registers mounted within the baking case's interior space, the air registers being positioned longitudinally along the baking case's longitudinal axis, the air registers being adapted for directing streams of heated air vertically across the longitudinal axis; (d) air impelling means mounted within the baking case's interior space, the air impelling means being adapted for collecting and driving heated air within said space; (e) an air plenum interconnecting the air registers and the air impelling means; (f) left and right conveyors extending along the baking case's longitudinal axis, the left and right conveyors being respectively positioned from the longitudinal axis; (g) a first roller mounted intersectingly across the baking case's longitudinal axis, the first roller being frictionally engaged with the left and right conveyors, the first roller comprising left and right drive sprockets respectively positioned leftwardly and rightwardly from the baking case's longitudinal axis, each of the left and right drive sprockets having a plurality of crossbar engaging teeth, each of the left and right drive sprockets having an effective diameter, the effective diameter of one of the drive sprockets among the left and right drive sprockets being less than that of the other drive sprocket; and (h) rotating means connected operatively to the first roller.