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:
Apr. 28, 1987
Filed:
Mar. 12, 1986
Kazufumi Matsushima, Aichi, JP;
Takamichi Sujaku, Nagoya, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
A microwave oven is provided with a machine chamber underside of a heating chamber, and a magnetron and a high-voltage transformer provided in the machine chamber are cooled by a pair of cooling fans also disposed in the machine chamber. One of the cooling fans driven directly by a fan motor cools the transformer and the other cooling fan cools the magnetron driven by the fan motor through transmission means, such as a belt. A frame-shaped member is provided in the machine chamber for defining the height of the chamber and for rigidifying the structure thereof, so that the outer diameters of the cooling fans can be effectively selected so as to reduce noise and vibration caused in the machine chamber.