Blade structure and ceiling fan having the same
US9115724B2 · kind B2 · utility
4Cited by
4References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 17, 2012 |
| Grant date | Aug 25, 2015 |
| Priority date | — |
| Expiry date | Feb 19, 2034 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D29/384
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A blade structure and ceiling fan having the same are disclosed. The blade structure includes a blade root, a blade tip, and a first vertex and a second vertex between the blade root and the blade tip. The blade bends from blade root to the first vertex, the blade tip and then bends from the blade tip to the second vertex and back to the blade root to form a hollow structure. The ceiling fan with the blade structure not only provides air modulating function but also has unique modeling.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.