Ventilation device
US9835175B2 · kind B2 · utility
0Cited by
3References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 22, 2013 |
| Grant date | Dec 5, 2017 |
| Priority date | — |
| Expiry date | Mar 9, 2034 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF24F7/007
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A ventilation device includes a fan propeller (3) and a motor (5) with an external rotor (7b) for driving the propeller (3). The propeller (3) includes a central hub (11) having a frontal wall (17) and an internal first lateral wall (21) defining an accommodating housing for the external rotor (7b). The external rotor (7b) has a front part (9) and a second lateral wall (9″) bearing against the internal first lateral wall (21) of the central hub (11). The ventilation device further includes a device for snap-fitting over the internal first lateral wall (21) to secure the external rotor (7b) to the central hub (11).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.