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:
Feb. 16, 1982
Filed:
Dec. 03, 1979
Louis H Fitzmayer, Lousville, KY (US);
General Electric Company, Louisville, KY (US);
Abstract
An excitation system for a microwave oven in which a rotating microwave field is established in a waveguide section prior to being propagated into the microwave oven cavity. A circular waveguide has an internal L-shaped rotating antenna excited from a coupling probe in an attached rectangular waveguide to establish in the waveguide a stationary TM01 and a TE11 mode. These modes interact in the waveguide to give an asymmetric rotating waveguide field which is then propagated into the oven to provide a rotating field pattern of desirable average uniformity. The excitation circular waveguide is located in a central position on the bottom wall of the oven.