Fan and fan housing with toothed-type connecting elements

Details Fan and fan housing with toothed-type connecting elements Fan and fan housing with toothed-type connecting elements

2006-04-21

2009-11-17

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

07618236

ABSTRACT:
A fan of the present invention includes a fan housing and an impeller disposed in the fan housing. The fan housing includes a plurality of connecting elements at its air outlet. Each connecting element includes a plurality of air-guiding teeth thereon, which can guide the air to flow smoothly out from the fan housing so as to increase airflow and air pressure, and reduce the noise.

REFERENCES:
patent: 4089618 (1978-05-01), Patel
patent: 4318669 (1982-03-01), Wennerstrom
patent: 4482302 (1984-11-01), Grignon
patent: 4761115 (1988-08-01), Hopfensperger
patent: 5603607 (1997-02-01), Kondo et al.
patent: 2004/0146395 (2004-07-01), Uselton

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