Fan
US9163640B2 · kind B2 · utility
2Cited by
5References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 16, 2012 |
| Grant date | Oct 20, 2015 |
| Priority date | — |
| Expiry date | May 13, 2034 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D29/30
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A fan includes a housing, an impeller and at least one position-limiting mechanism. The housing has an accommodating space for receiving the impeller. The impeller has a hub and a plurality of blades surrounding the hub. The position-limiting mechanism is located between the top of the blade and the inner side of the housing, and disposed on the top of the blade or the inner side of the housing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.