Cooling fan

Details Cooling fan Cooling fan

2007-12-12

2011-11-08

Kershteyn, Igor (Department: 3745)

Fluid reaction surfaces (i.e., impellers)

With illumination means

C416S061000, C416S24100B, C416S24100B

Reexamination Certificate

active

08052387

ABSTRACT:
A cooling fan includes a hub (40) and blades (50) extending radially from the hub. Each of the blades is divided into strip zones (505, 51, 52, 53, 54, 55, 56), projections of homocentric arcs concentric with the hub on the blades are defined as boundaries of the zones. The zones are coated with a layer of paint with different colors to present a rainbow-liked image when the fan is in operation.

REFERENCES:
patent: 2701540 (1955-02-01), Hamilton
patent: 5082422 (1992-01-01), Wang
patent: 5205636 (1993-04-01), Carpenter
patent: 5437540 (1995-08-01), Blocker et al.
patent: 6082868 (2000-07-01), Carpenter
patent: 6327994 (2001-12-01), Labrador
patent: 6623243 (2003-09-01), Hodos
patent: 2005/0141997 (2005-06-01), Rast

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