Fan with increased air flow

Details Fan with increased air flow Fan with increased air flow

2005-09-06

2005-09-06

Koczo, Jr., Michael (Department: 3746)

Pumps

Motor driven

Motor within rotary pumping member

C417S423140

Reexamination Certificate

active

06939113

ABSTRACT:
A fan with increased air flow having a casing in which an air passage hole is formed. A motor is connected to this casing and is held in the center of the air passage hole by a motor base positioned within the air passage hole. Multiple blades are rotated by the motor and covey air from the air passage hole intake port side to the exhaust port side. The annular outer wall of the fan is inclined with respect to the center axis towards the air passage hole exhaust port. By this means, a fan is capable of attaining a greater airflow volume than conventional fans, while having the same outward shape as a conventional fan.

REFERENCES:
patent: 2926838 (1960-03-01), Van Rijn
patent: 3378192 (1968-04-01), Friese
patent: 3644066 (1972-02-01), Heob et al.
patent: 4225285 (1980-09-01), Sturm
patent: 6158985 (2000-12-01), Watanabe et al.
patent: 6659737 (2003-12-01), Bader et al.
patent: 2002/0028146 (2002-03-01), Otsuka
patent: 2003/0152466 (2003-08-01), Sung
patent: 4127134 (1993-02-01), None

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