Cooling fan for vehicles

Details Cooling fan for vehicles Cooling fan for vehicles

2007-03-13

2007-03-13

Look, Edward K. (Department: 3745)

Fluid reaction surfaces (i.e., impellers)

With weight-balancing means

Self-shifting or selectively adjustable mass

C416S189000, C029S889300, C029S407050

Reexamination Certificate

active

10955619

ABSTRACT:
A cooling fan having a circumferential ring. In ordinary fans of this type, deformation of fan blades causes the ring to buckle inward at locations between the blades. In one form of the invention, mass is added to the ring between the blades to counteract the buckling.

REFERENCES:
patent: 2098640 (1937-11-01), Beecher
patent: 2366795 (1945-01-01), Lamorcaux
patent: 5961289 (1999-10-01), Lohmann
patent: 6168734 (2001-01-01), Botros
patent: 6224335 (2001-05-01), Parisi et al.
patent: 6508621 (2003-01-01), Zeighami et al.
patent: 6595744 (2003-07-01), Van Houten

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