Cooking chamber assembly in microwave oven

Details Cooking chamber assembly in microwave oven Cooking chamber assembly in microwave oven

2005-06-21

2005-06-21

Van, Quang T. (Department: 3742)

Electric heating

Microwave heating

Enclosed cavity structure

C219S757000

Reexamination Certificate

active

06909078

ABSTRACT:
A cooking chamber assembly in a microwave oven for improved which improves air tightness in the cooking chamber, and reduces assembly complexity, time, and cost. A tray which essentially forms a bottom surface of a cooking chamber of the microwave oven is surrounded by a unitary gasket. A groove formed in an inner edge of the unitary gasket is designed to receive an outer edge of the tray, and a lip formed on an outer edge of the unitary gasket is designed to provide an air tight seal with an inner surface of a case of the cooking chamber. An air duct which guides circulating air is attached to an inner portion of the case with a series of hooks, allowing the air duct to be attached without separate fastening members such as screws or bolts, thus further reducing manufacturing time and cost.

REFERENCES:
patent: 4556772 (1985-12-01), McCammon et al.
patent: 4857685 (1989-08-01), Vigano et al.
patent: 58-116905 (1983-08-01), None
patent: 08090669 (1996-04-01), None
patent: 2000154920 (2000-06-01), None

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