Ventilation fan and light

Details Ventilation fan and light Ventilation fan and light

2006-09-07

2008-12-30

Vo, Tuyet (Department: 2821)

Illumination

Light source and modifier

Including reflector

C362S294000, C362S295000, C362S257000, C362S548000

Reexamination Certificate

active

07470043

ABSTRACT:
A ventilation fan and light (10) is disclosed which includes a housing (12) and a light kit (13). The housing (12) includes an air intake15adjacent the light kit and an air exhaust port (16) coupled to an exhaust duct (17). The light kit has one or more light sources (20). A motorized fan (19) is mounted within the housing. The motorized fan is operated at a low speed whenever the light source is illuminated and a high speed whenever ventilation is required. The operation of the fan at a low speed prevents the build-up of heat within the housing. The ventilation fan includes an electric circuit (22) which includes a capacitor mounted between a light source electrical branch (23) and a fan motor electrical branch (24).

REFERENCES:
patent: 2189008 (1940-02-01), Kurth
patent: 3786233 (1974-01-01), Bumpus et al.
patent: 3958100 (1976-05-01), Stone
patent: 5021932 (1991-06-01), Ivey
patent: 6940051 (2005-09-01), Tateishi
patent: 2004/0084440 (2004-05-01), Tateishi
patent: 2005/0196158 (2005-09-01), Semaza

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