Ceiling fan
US11873834B2 · kind B2 · utility
1Cited by
4References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 9, 2023 |
| Grant date | Jan 16, 2024 |
| Priority date | — |
| Expiry date | Feb 9, 2043 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D29/329
- 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 includes: an inner blade having one side coupled to the hub case; and an outer blade having one side that is coupled to a part of the other end of the inner blade and disposed farther from an axis of the hub case than the inner blade, wherein the inner blade includes: a first inner blade; and a second inner blade disposed spaced apart from the first inner blade.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.