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. 26, 2021
Filed:
May. 28, 2019
Applicant:
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Inventors:
Assignee:
Primary Examiner:
Int. Cl.
CPC ...
F04D 29/34 (2005.12); F04D 25/08 (2005.12); F04D 29/38 (2005.12);
U.S. Cl.
CPC ...
F04D 29/34 (2012.12); F04D 25/088 (2012.12); F04D 29/388 (2012.12);
Abstract
A ceiling fan includes blade () that is integrally formed of root (), vane (), and step () for maintaining vane () in a state inclined from horizontal. Blade () includes bend ()on upstream side (11c), first reinforcement () onupstreamdownstreamside(c)(11b), and a plurality of second reinforcements () between bend () and first reinforcement (). First reinforcement length (a) is longer than second reinforcement length (a). Further, the ceiling fan includes blade drop prevention portion () for locking blade () to support ().