Serial fan with toothed-type connecting elements

Details Serial fan with toothed-type connecting elements Serial fan with toothed-type connecting elements

2006-12-27

2010-02-16

Kershteyn, Igor (Department: 3745)

Rotary kinetic fluid motors or pumps

Working fluid passage or distributing means associated with...

Vane or deflector

C415S211200, C415S121200, C415S914000

Reexamination Certificate

active

07661927

ABSTRACT:
A serial fan of the present invention includes a first fan and a second fan, each of which includes a housing and an impeller disposed in the housing. The housings respectively include a plurality of connecting elements, and there are several air-guiding recesses defined on the connecting elements of the first fan or the second fan, which can guide air to smoothly flow out from the housing so as to increase airflow and air pressure and reduce noise.

REFERENCES:
patent: 3342254 (1967-09-01), Fujie
patent: 4089618 (1978-05-01), Patel
patent: 4761115 (1988-08-01), Hopfensperger
patent: 5603607 (1997-02-01), Kondo et al.
patent: 6244818 (2001-06-01), Chang
patent: 6612817 (2003-09-01), Lin et al.
patent: 2004/0146395 (2004-07-01), Uselton

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