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:
Jul. 31, 1979
Filed:
Apr. 14, 1977
Junzo Tanaka, Fujidera, JP;
Toshio Kai, Yamatokoriyama, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
A microwave oven is equipped with a rotary table driven by magnetic coupling. The microwave oven has a heating chamber in which at least its bottom wall or base plate is made of a non-magnetic metallic material, while its other walls are formed of metallic material other than non-magnetic metallic material, for reduction of the cost of the microwave oven. The junctions between the wall of non-magnetic metallic material and the walls of metallic material other than non-magnetic metallic material are coated with coating film to improve corrosion resistance. Furthermore, the heating chamber together with the rotary table is so arranged as to facilitate insertion and withdrawal of a container of food material into and from the heating chamber to provide a microwave oven which is clean and convenient to use.