Electric heating – Microwave heating – Enclosed cavity structure
Reexamination Certificate
2005-01-04
2005-01-04
Leung, Philip H. (Department: 3742)
Electric heating
Microwave heating
Enclosed cavity structure
C219S746000, C126S02100R
Reexamination Certificate
active
06838649
ABSTRACT:
Commercial microwave oven including a main cabinet for enclosing and protecting various components, having air inlet holes, a base frame under the main cabinet having a box form with an opened top and a front part with a plurality of air outlet holes, a bottom plate on the base frame, an inner case in a space above one side part of the bottom plate, the inner case having a cooking chamber formed therein, a magnetron on a lower part of an outside of the inner case, a transformer for regulating a voltage provided to the magnetron, a waveguide on an underside of the bottom plate, a fan in a rear of outside of the inner case, and a flow guide for guiding air passed through the magnetron toward air outlet holes, thereby cooling components effectively, reducing a volume, and cost of the product.
REFERENCES:
patent: 4184945 (1980-01-01), Morgan et al.
patent: 5945024 (1999-08-01), Fukunaga et al.
patent: 6150648 (2000-11-01), Kang et al.
Fleshner & Kim LLP
Leung Philip H.
LG Electronics Inc.
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