Cooling fan

Details Cooling fan Cooling fan

2007-12-12

2011-12-27

Kershteyn, Igor (Department: 3745)

Rotary kinetic fluid motors or pumps

Working fluid passage or distributing means associated with...

Casing with mounting means

C415S216100, C415S220000, C415S229000, C416S174000

Reexamination Certificate

active

08083480

ABSTRACT:
A cooling fan includes a fan housing (10) having a shaft seat (16) extending downwardly therefrom, a stator (20) being fixedly mounted around the shaft seat, a shaft (80) with a top end being fixedly connected to the shaft seat and a free end (82) extending downwardly therefrom, a rotor (30) comprising a hub (32) having a plurality of blades (34) extending radially and outwardly, and a sleeve bearing (40). A fixing tube (36) extends upwardly from a center of the hub. The fixing tube has a closed bottom end and defines a fixing hole (360) therein. The sleeve bearing is fixedly received in the fixing hole of the fixing tube to rotate with the rotor. A bearing hole is defined in the sleeve bearing for extension of the free end of the shaft therethrough.

REFERENCES:
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patent: 5997265 (1999-12-01), Chung
patent: 6318976 (2001-11-01), Hsieh
patent: 7364403 (2008-04-01), Wu et al.
patent: 7695256 (2010-04-01), Horng et al.
patent: 2374676 (1999-04-01), None
patent: 2374676 (2000-04-01), None
patent: 02293410.3 (2003-12-01), None
patent: 492520 (2002-06-01), None
patent: 581160 (2004-03-01), None
patent: M309142 (2007-04-01), None

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