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:
Sep. 16, 1980
Filed:
Dec. 26, 1978
Louis H Fitzmayer, Louisville, KY (US);
General Electric Company, Louisville, KY (US);
Abstract
A microwave oven with an electrically conductive surface such as a flat metal plate positioned parallel to the bottom of the oven cavity and spaced therefrom by approximately one tenth the wavelength in free space .lambda.a of the excitation microwave energy.The width of the plate is an odd multiple of a quarter wavelength (.lambda.a/4) and the depth is an even multiple of .lambda.a/4. Preferably the plate is spaced an odd multiple of .lambda.a/4 from the feed aperture at the top of the oven cavity.The edges of the plate are spaced from the vertical side walls of the oven cavity, at least in that region of the cavity where the microwave energy level would be greatest in the absence of the plate.