Microwave heating with hot and cold air streams
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United States of America Patent
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Jan 9, 1996
Grant Date -
N/A
app pub date -
Jun 17, 1994
filing date -
Jun 25, 1993
priority date (Note) -
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Abstract
A microwave oven cavity 2 is provided by a magnetron(s) with microwave energy for providing heat in the thermal cavity. Hot air is supplied by a heated air supply and director (21,22,24). Cool air, at least a portion of which is able to assist in containing and/or directing at least a portion of said hot air, is also supplied via a sleeve (31) so as to provide localization of at least a portion of said hot air in the thermal cavity, and optionally to prevent or reduce heat reaching at least a portion of the boundary of the thermal cavity.
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