Centrifugal fan
US8684676B1 · kind B1 · utility
8Cited by
8References
17Claims
0Family size
Inventor
Key dates
| Filing date | Nov 23, 2010 |
| Grant date | Apr 1, 2014 |
| Priority date | — |
| Expiry date | Dec 28, 2032 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D29/626
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A centrifugal fan that includes an impeller having fan blades with notched tabs extending through slots in a pair of disc shaped base elements with the notches engaging the ends of the slots to secure the fan blades upon the impeller.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.