The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 31, 2005
Filed:
Dec. 22, 2003
Timothy J. Arntz, Cleveland, TN (US);
Dennis Michael Brandon Burns, Athens, TN (US);
Damien L. Esprit, Cleveland, TN (US);
Trieu Huynh, Ooltewah, TN (US);
Sondra Denice Proffitt, Springfield, TN (US);
Robert Z. Whipple, Jr., Louden, TN (US);
Timothy J. Arntz, Cleveland, TN (US);
Dennis Michael Brandon Burns, Athens, TN (US);
Damien L. Esprit, Cleveland, TN (US);
Trieu Huynh, Ooltewah, TN (US);
Sondra Denice Proffitt, Springfield, TN (US);
Robert Z. Whipple, Jr., Louden, TN (US);
Maytag Corporation, Newton, IA (US);
Abstract
A microwave delivery system for a cooking appliance includes a toroidal waveguide, a launching zone and a waveguide cover. The launching zone includes opposing top, bottom and side walls that form a pathway for a microwave energy field to travel from a magnetron through the waveguide and into a cooking chamber. In accordance with one aspect of the overall invention, the bottom wall of the launching zone is aligned with a bottom surface of the waveguide to establish a direct conducting surface for the microwave energy field. The waveguide cover shields a hollow interior portion of the waveguide from cooking byproducts generated in the cooking chamber during a cooking process. The waveguide cover is preferably constituted by a metallic conductor having a finish that enhances the microwave energy field distribution in the cooking chamber.