Fan and impeller thereof

Details Fan and impeller thereof Fan and impeller thereof

2011-06-14

2011-06-14

Wiehe, Nathaniel (Department: 3745)

Fluid reaction surfaces (i.e., impellers)

Specific blade structure

Integrally shaped or blended into hub

Reexamination Certificate

active

07959413

ABSTRACT:
A fan includes an impeller and a motor. The impeller includes a hub and a plurality of blades. The hub has a top portion, a connection portion, and at least one airflow-guiding portion. The top portion is connected to the connection portion. The blades are disposed around the connection portion. The motor is disposed corresponding to the impeller and used to drive the impeller to rotate. The airflow-guiding portion is disposed between two adjacent blades.

REFERENCES:
patent: 2801793 (1957-08-01), Kline
patent: 6565320 (2003-05-01), Surls et al.
patent: 7419359 (2008-09-01), Spaggiari
patent: 7438522 (2008-10-01), Eimer
patent: 2003/0138324 (2003-07-01), Hsieh
patent: 2 041 103 (1980-09-01), None

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