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:
Dec. 18, 2007
Filed:
Dec. 24, 2002
Ikuyasu Kaminaka, Osaka, JP;
Tadashi Nasu, Osaka, JP;
Masayuki Iwamoto, Osaka, JP;
Yuzi Andoh, Nara, JP;
Takashi Hashimoto, Osaka, JP;
Toshiyuki Irie, Nara, JP;
Tetsuichi Arita, Osaka, JP;
Ikuyasu Kaminaka, Osaka, JP;
Tadashi Nasu, Osaka, JP;
Masayuki Iwamoto, Osaka, JP;
Yuzi Andoh, Nara, JP;
Takashi Hashimoto, Osaka, JP;
Toshiyuki Irie, Nara, JP;
Tetsuichi Arita, Osaka, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
A cooking oven, wherein air in a cooking chamber is sucked into a blower on the outside of the cooking chamber and fed to an upper duct and a lateral duct, air current led into the upper duct is heated by an upper heater and re-circulated from an upper blowing port to the cooking chamber, a catalyst block heated by a catalyst heating heater is disposed in the upper duct to decompose lamp black and smell substances contained in the air current, catalyst paint is applied onto the inner wall surface of the upper duct to reinforce a performance for decomposing the lamp black and smell substances, both the lateral duct and the upper duct are formed in the same structure, the distributions of heating volumes of the upper heater and the lateral heater in the cross sections of the upper duct and the lateral duct are set so that larger heating volumes are generated on larger air volume sides according to the air volume distributions in the cross sections of the ducts, and the catalyst block is also disposed in the cross sections of the ducts eccentrically to the larger heater heating volume side.