Fan
US11530707B2 · kind B2 · utility
1Cited by
5References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 12, 2021 |
| Grant date | Dec 20, 2022 |
| Priority date | — |
| Expiry date | Apr 12, 2041 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2240/307
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A fan including a hub and a plurality metal blades is provided. Each of the blades extends from the hub and is inclined relative to a radial direction of the hub. Each blade has a distal edge away from the hub, and has a pair of wingtips at the distal edge.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.