Electric heating – Metal heating – Of cylinders
Patent
1982-05-03
1985-04-09
Leung, Philip H.
Electric heating
Metal heating
Of cylinders
219 1055B, 219 1055R, 34 1, H05B 678
Patent
active
045103615
ABSTRACT:
A hollow tumbler-type microwave opaque drum is mounted on the horizontal axis in a housing and is driven rotatably for tumbling articles laterally across the interior of the drum. A microwave power unit is disposed with the output thereof directed axially through the rear of the drum for engaging articles tumbling in the drum. The microwave unit is disposed in an auxiliary housing and an arrangement such that a blower can circulate air around the power unit for cooling it and also for moving such air through the cavity of the drum for carrying away vapor which has been removed from the articles. In a second embodiment of the invention, the rear mount power unit can be used in combination with a front mount power unit to double the capacity for removing mositure from articles tumbling in the drum. The front mount power unit also is associated with a passageway arrangement for cooling the power unit.
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