Patent ID: 8536493
Filing Date: 2013-09-17
Classification: A21B

Abstract:
1. A vertically stacked air impingement tunnel oven comprising: (a) a plurality of baking cases, each baking case having an interior space, a longitudinal food passage port, and an oppositely longitudinal food passage port, the baking cases' vertical stack vertically aligning their longitudinal and oppositely longitudinal food passage ports; (b) heater means connected operatively to the baking cases, said heater means being adapted for heating selected groups of baking cases among the plurality of baking cases, said heater means being controlled by a plurality of on/off switches which are electrically connected for correspondingly actuating said heater means' heating of the selected baking case groups; (c) an exhaust hood and exhaust fan combination, said combination comprising an exhaust inlet overlying an uppermost food passage port among the baking cases' longitudinal and oppositely longitudinal food passage ports; and (d) first motor means connected operatively to the exhaust fan, the first motor means being adapted for alternatively rotating the exhaust fan at any rotation speed among a plurality of rotation speeds, the first motor means being controlled by the plurality of on/off switches, and the plurality of on/off switches being further electrically connected for, upon said switches' corresponding actuations of the selected heater means, further actuating the exhaust fan at a corresponding rotation speed among the plurality of rotation speeds.