Patent ID: 7343912
Filing Date: 2008-03-18
Classification: A21B

Abstract:
1. A conveyor oven comprising: an oven chamber that comprises an inlet and an outlet; a conveyor disposed to transport food through said oven chamber; a ductwork that comprises first, second and third separate air return plenums, wherein said first and second air return plenums are located adjacent said inlet and outlet, respectively, and said third air return plenum is located between said first and second air return plenums, wherein said ductwork further comprises first and second air delivery plenums located on one side of said conveyor between said third air return plenum and said first and second air return plenums, respectively; and at least one blower disposed to provide a first air stream via said first air delivery plenum along said conveyor between said first and third air return plenums, a second air stream via said second air delivery plenum along said conveyor between said first and third air return plenums, a third air stream and a fourth separate air stream that redirect said first and second air streams to said first and second air return plenums, respectively, so as to substantially prevent said first and second air streams from escaping to ambient via said inlet and said outlet, respectively.