Passive fan

Details Passive fan Passive fan

2008-01-03

2011-11-15

Kershteyn, Igor (Department: 3745)

Rotary kinetic fluid motors or pumps

Including shaft transmission train, brake, clutch, or...

C415S124200, C416S1700HM, C416S189000

Reexamination Certificate

active

08057166

ABSTRACT:
A passive fan includes a frame, at least one impeller and at least one driving device. The impeller is disposed in the frame. The driving device is disposed in the body of the frame and separated from the impeller, and drives the impeller to rotate. The driving device is an independent motor, a driver, a rotating wheel or a driving gear.

REFERENCES:
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patent: 6194798 (2001-02-01), Lopatinsky
patent: 6744172 (2004-06-01), Duhua
patent: 7456541 (2008-11-01), Horng et al.

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