Passive fan

Rotary kinetic fluid motors or pumps – Including shaft transmission train – brake – clutch – or...

Reexamination Certificate

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Details

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:
patent: 2098407 (1937-11-01), Smith, Jr.
patent: 2255908 (1941-09-01), Anderson
patent: 2450708 (1948-10-01), Anderson
patent: 3125284 (1964-03-01), Lawler
patent: 3179353 (1965-04-01), Peterson
patent: 4459087 (1984-07-01), Barge
patent: 4563622 (1986-01-01), Deavers et al.
patent: 4949022 (1990-08-01), Lipman
patent: 5252875 (1993-10-01), Veronesi et al.
patent: 6194798 (2001-02-01), Lopatinsky
patent: 6744172 (2004-06-01), Duhua
patent: 7456541 (2008-11-01), Horng et al.

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