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:
May. 24, 2016
Filed:
Feb. 10, 2011
Yefan Weng, Guangdong, CN;
Liang Tian, Guangdong, CN;
Hongjian Yuan, Guangdong, CN;
Shuang Jin, Guangdong, CN;
Makoto Ishikawa, Aichi, JP;
Takuya Arai, Aichi, JP;
Yefan Weng, Guangdong, CN;
Liang Tian, Guangdong, CN;
Hongjian Yuan, Guangdong, CN;
Shuang Jin, Guangdong, CN;
Makoto Ishikawa, Aichi, JP;
Takuya Arai, Aichi, JP;
Panasonic Ecology Systems Guandong Co. Ltd., Foshan Gangdon, CN;
Panasonic Corporation, Osaka, JP;
Abstract
A heating and ventilation fan for a bathroom comprises an ventilation fan frame, a scroll casing provided with fan blades and a motor, an air passage-switching plate, and a heater; characterized in that: an air leakage-preventing structure is provided between an air outlet of the scroll casing and the air passage. The advantage of the present invention is that a desired air amount can be ensured and a noise can be reduced while guaranteeing a gap required for smooth rotation of the air passage-switching plate.