Combined light source and air purifier

Details Combined light source and air purifier Combined light source and air purifier

2006-08-01

2006-08-01

Hopkins, Robert A. (Department: 1724)

Gas separation

Combined or convertible

C055S471000, C055S486000

Reexamination Certificate

active

07083659

ABSTRACT:
The combined light source and air purifier unit includes a body (11) and a centrifugal fan (12) with rearwardly facing blades (20) run at low speed and mounted by the body with its axis upright and a central intake (17) through which air containing contaminants is drawn from a target zone (80) below the unit. A light source (14) mounted within a peripheral projecting skirt (75) is located radially outside the intake (17) of the centrifugal fan (12) so as not to obstruct the flow of intake air. A filter (13) extends circumferentially around the fan (12) and an air discharge (60) includes a smoothly curved flow deflecting means (62) provided by the body (11) to deflect air flowing outwardly from the fan in an upwards direction at about 45° or less to the vertical.

REFERENCES:
patent: 2082441 (1937-06-01), Child
patent: 4849862 (1989-07-01), Diskin et al.
patent: 6244720 (2001-06-01), Neff

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