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:
Jan. 03, 2017
Filed:
Jun. 18, 2012
Bodong Zhong, Guangdong, CN;
Min Long, Guangdong, CN;
Jiahan Hong, Guangdong, CN;
Shi Zhen, Guangdong, CN;
Norihiko Hasegawa, Aichi, JP;
Ryuuma Yokoyama, Aichi, JP;
Bodong Zhong, Guangdong, CN;
Min Long, Guangdong, CN;
Jiahan Hong, Guangdong, CN;
Shi Zhen, Guangdong, CN;
Norihiko Hasegawa, Aichi, JP;
Ryuuma Yokoyama, Aichi, JP;
Panasonic Ecology Systems Guangdong Co., Ltd., Foshan, Guangdong, CN;
Panasonic Corporation, Osaka, JP;
Abstract
Ventilation device is mounted on inner wall in wind tunnel communicating between indoor and outdoor sides, having a ventilation louver. The ventilation louver includes a louver frame and a movable louver. Horizontal distance from position of gravity center of the movable louver to the inner wall is greater than horizontal distance from the movable louver shaft to the inner wall. A lever is disposed at a lower part of the louver frame to move in a left-right direction along bottom end face of the lower part of the louver frame. A connection element is provided to connect the movable louver with the lever between the movable louver and the louver frame, which is configured to be a slidable structure in the up-down direction, and transform the movement in the left-right direction of the lever to opening and closing movement of the movable louver around the movable louver shaft.