Microwave tunnel heating apparatus

Details Microwave tunnel heating apparatus Microwave tunnel heating apparatus

1994-09-09

1996-05-07

Leung, Philip H.

Electric heating

Microwave heating

Tunnel furnace

219701, 219729, 219684, 426243, H05B 678

Patent

active

055148530

ABSTRACT:
An apparatus assembly for heating a product has a tunnel and microwave generators positoned for generating a microwave field zone within the tunnel. A conveyor belt extends within the tunnel for passing a product through the tunnel. A plate formed of a material impermeable to microwaves is positioned in the tunnel so that an entire width of the belt passes over the plate in the microwave field zone so that microwave energy is reflected away from the belt. In addition, heating elements for generating an infrared energy zone and a further conveyor belt may be positioned so that a product passed through the tunnel then is passed by the further conveyor belt through the infrared energy zone.

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patent: 5207151 (1993-05-01), LeViet et al.

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