Ceiling fan
US11835051B2 · kind B2 · utility
0Cited by
2References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 16, 2023 |
| Grant date | Dec 5, 2023 |
| Priority date | — |
| Expiry date | Feb 16, 2043 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D29/681
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A ceiling fan includes: a column; a hub case which is coupled to the column and rotatable with respect to the column; and a plurality of blades disposed in the hub case, wherein each of the blades comprises: an upper blade having one end coupled to the hub case; a lower blade which has one end coupled to the hub case and is spaced apart from the upper blade; and an end tip connecting the other end of the upper blade and the other end of the lower blade.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.