Ceiling fan blade
US10995769B2 · kind B2 · utility
14Cited by
13References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 26, 2019 |
| Grant date | May 4, 2021 |
| Priority date | — |
| Expiry date | Mar 26, 2039 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2250/292
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A ceiling fan or similar air-moving device can include a motor for rotating one or more blades to drive a volume of air about a space. The blade can include a body having an outer surface with a flat top surface and a flat bottom surface, and a side edge. A curved transition can extend between one of the flat top surface or the flat bottom surface, and the side edge. The curved transition can include an elliptical curvature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.