Thin-form centrifugal fan

Details Thin-form centrifugal fan Thin-form centrifugal fan

2005-07-05

2005-07-05

Lopez, F. Daniel (Department: 3745)

Fluid reaction surfaces (i.e., impellers)

Rotor having flow confining or deflecting web, shroud or...

Radially extending web or end plate

C415S199200, C415S199300

Reexamination Certificate

active

06913444

ABSTRACT:
A small, lightweight and inexpensive thin-form centrifugal fan having a first moving blade; a second moving blade; and a stationary blade disposed between the first moving blade and the second moving blade and directing gas taken in by rotation of the first moving blade to the second moving blade. The first and second moving blades are formed such that the rigidity of their central portions is smaller than the rigidity of their outer perimeter areas.

REFERENCES:
patent: 4666373 (1987-05-01), Sugiura
patent: 6210116 (2001-04-01), Kuczaj et al.

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