Fan with motor ventilation system
US6769883B2 · kind B2 · utility
58Cited by
5References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 23, 2002 |
| Grant date | Aug 3, 2004 |
| Priority date | — |
| Expiry date | Feb 14, 2023 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D29/5806
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A fan (10) is disclosed having a downrod (11), a motor (12), a motor housing (13) substantially encasing the motor (12), and blades (14) mounted to the motor housing (13). Each blade (14) has an air intake scoop (16 adjacent to and extending from the motor housing (13). The interior space (17) created by the intake scoop (16) is in fluid communication with an opening (18) extending through the motor housing (13). Rotational movement of the air intake scoops (16) create airstreams which are directed to the electric motor for ventilation purposes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.