Blower units

Details Blower units Blower units

2006-05-02

2006-05-02

Freay, Charles G. (Department: 3746)

Pumps

Processes

C417S368000, C417S423800

Reexamination Certificate

active

07037084

ABSTRACT:
A blower unit includes a housing, a shroud, a motor, a feed air impeller, a fan casing and a cooling air impeller. A motor shaft extends from both ends of the motor. The feed air impeller is attached to a front of the motor and the cooling air impeller is attached to a rear of the motor. The feed air impeller is contained in the fan casing. The shroud retains the motor and forms a guide chamber around the fan casing. The shroud is retained in the housing. Air is drawn through a front of the housing by the cooling air impeller. The air flows between the motor and the shroud and out of a bottom of the housing. Air is drawn by the feed air impeller and forced through the plurality of apertures in the fan casing and through a housing outlet by the feed air impeller.

REFERENCES:
patent: 4088424 (1978-05-01), Hyatt et al.
patent: 4518325 (1985-05-01), Kingston
patent: 4978281 (1990-12-01), Conger, IV
patent: 5156535 (1992-10-01), Budris et al.
patent: 6037684 (2000-03-01), DeYoung et al.
patent: 6155802 (2000-12-01), Choi et al.
patent: 599909 (1990-02-01), None

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