Heating – Work chamber having heating means – Having means by which work is progressed or moved mechanically
Patent
1977-12-27
1979-07-24
Camby, John J.
Heating
Work chamber having heating means
Having means by which work is progressed or moved mechanically
432145, 432152, 432200, F27B 900, F27B 516
Patent
active
041621417
ABSTRACT:
A variable air flow oven is disclosed in which a variable air directing control means delivers varying amounts of heated air under various positive pressures in an alternating pattern to jet orifices in opposite side walls of the oven in an inverse ratio. Hot air jets from opposite sides of the oven meet at a region of common velocity in the processing chamber to produce a turbulent mixing of the hot air in a vertical plane. The turbulent heated air travels from one side of the oven to the other substantially throughout a heating period under the controlled operation of a motor driven mechanical linkage arrangement to assure even baking, cooking or drying of the products being processed through the entire processing chamber in the oven. The system operates at a positive pressure at all times, so that the main supply of heated air flows through one side duct and a smaller volume of heated air flows through the opposite side. As the air pressure is varied to the hot air jets in the opposite side walls, the vertical plane of turbulent heated air sweeps back and forth through the chamber, contacting the entire product, and then is drawn into a return duct for reheating and recirculation.
REFERENCES:
patent: 3537405 (1970-11-01), Verhoeven
patent: 4029463 (1977-06-01), Johansson
patent: 4030879 (1977-06-01), Stanasila
patent: 4032289 (1977-06-01), Johnson et al.
patent: 4039278 (1977-08-01), Denholm
Camby John J.
Peterson Thomas F.
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