Cooling fan dust structure for keeping off flying dust from entering into spindle
US6616422B2 · kind B2 · utility
19Cited by
6References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 9, 2001 |
| Grant date | Sep 9, 2003 |
| Priority date | — |
| Expiry date | Oct 9, 2021 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D29/083
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A cooling fan dust structure has provided on the end of the fan blade hood a recess that mutually forms an overcut height difference with a flange protruding from the peripheral of a motor base so to prevent the airflow carrying dust an easy ingression and even keep off the flying dust from entering into the spindle as the fan blade unit rotates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.