Invention Grant
- Patent Title: Ceiling fan
- Patent Title (中): 吊扇
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Application No.: US12920474Application Date: 2009-02-27
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Publication No.: US08827658B2Publication Date: 2014-09-09
- Inventor: Kiminobu Yamamoto , Tetsuji Kawazu , Hiroshi Yoshikawa , Kiyohiko Iwamoto
- Applicant: Kiminobu Yamamoto , Tetsuji Kawazu , Hiroshi Yoshikawa , Kiyohiko Iwamoto
- Applicant Address: JP Osaka
- Assignee: Panasonic Corporation
- Current Assignee: Panasonic Corporation
- Current Assignee Address: JP Osaka
- Agency: Panasonic Patent Center
- Priority: JP2008-053010 20080304; JP2008-303980 20081128
- International Application: PCT/JP2009/000875 WO 20090227
- International Announcement: WO2009/110201 WO 20090911
- Main IPC: F04D25/08
- IPC: F04D25/08 ; F04D29/60

Abstract:
A ceiling fan includes a motor which rotates a plurality of blades, a shaft projecting from the motor, a pipe connected to an upper end of the shaft and which hangs from a ceiling surface, and a connecting rod for connecting the pipe and the shaft with each other via through holes formed in the pipe and the shaft, respectively. The ceiling fan also includes a displacement-correspondence tool which is displaced or which detects a displacement amount in correspondence with a relative positional displacement amount between the shaft and the pipe, and a power source control tool which controls energization to the motor in accordance with the displacement of the displacement-correspondence tool or the detected displacement amount.
Public/Granted literature
- US20110002783A1 CEILING FAN Public/Granted day:2011-01-06
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