Cooling fan dust guard
US6655929B2 · kind B2 · utility
24Cited by
9References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 9, 2001 |
| Grant date | Dec 2, 2003 |
| Priority date | — |
| Expiry date | Oct 9, 2021 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D29/703
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A cooling fan dust guard has provided on the inner side of fan blades multiples of fins at equal distance from one another around the spindle to create disturbance as the fan blades rotate to outwardly expel the airflow so to prevent the airflow carrying dust an easy ingression of the dust into the spindle and help cool down the stator assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.