Blower fan

Details Blower fan Blower fan

2007-05-08

2007-05-08

Nguyen, Ninh H. (Department: 3745)

Fluid reaction surfaces (i.e., impellers)

Rotor having flow confining or deflecting web, shroud or...

Radially extending web or end plate

C416S228000

Reexamination Certificate

active

10943007

ABSTRACT:
A blower fan includes a shroud, a hub for guiding airflow being discharged, and a plurality of blades disposed between the shroud and the hub. A first outer diameter of a first portion, which is close to the hub, of the blade is different from a second outer diameter of a second portion, which is close to the shroud, of the blade.

REFERENCES:
patent: 3224079 (1965-12-01), Dybvig
patent: 3668887 (1972-06-01), Riello
patent: 4211514 (1980-07-01), Hawes
patent: 4647271 (1987-03-01), Nagai et al.
patent: 2002/0106277 (2002-08-01), Chapman
patent: 2002/0110455 (2002-08-01), Kim et al.
patent: 19500994 (1996-07-01), None
patent: 1141198 (1969-01-01), None
patent: 14-022210 (2002-01-01), None
English Language Abstract of JP 14-022210.
English Language Abstract of DE 19500994.
U.S. Appl. No. 10/943,102 to Lee et al.

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