Electric heating – Microwave heating – Enclosed cavity structure
Reexamination Certificate
2007-03-20
2007-03-20
Leung, Philip H. (Department: 3742)
Electric heating
Microwave heating
Enclosed cavity structure
C219S756000, C219S754000, C219S681000, C126S02100R, C126S29900R
Reexamination Certificate
active
10882965
ABSTRACT:
A filter system for a wall mounted type microwave oven, which has an external enclosure surrounding an oven cavity. The external enclosure includes a bottom closure wall having a suction opening. The external enclosure also includes a top vent opening. An air exhaust path is formed between the external enclosure and the oven cavity wherein air drawn into the suction opening passes through the air exhaust path and is exhausted through the top vent opening. A first filter is provided on the suction side of the air exhaust path and a second filter may be provided on the exhaust side of the air exhaust path. In particular, the first filter may be provided adjacent the suction opening and a second filter may be provided adjacent the top vent opening, such that the first filter is provided at the inlet of the air exhaust path and the second filter is provided at the outlet of the air exhaust path.
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Bengtson Alan D.
Lindgren Hans
Lundstrom Hakan
Törngren Per
Colligan John F.
Krefman Stephen
Leung Philip H.
Rice Robert O.
Whirlpool Corporation
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