Air purification device

Details Air purification device Air purification device

2005-02-04

2009-06-16

Mayekar, Kishor (Department: 1795)

Chemical apparatus and process disinfecting, deodorizing, preser

Chemical reactor

With means applying electromagnetic wave energy or...

C422S121000, C096S095000

Reexamination Certificate

active

07547420

ABSTRACT:
An air purification device for reducing pollutants in the air comprises an ionizer, which is exposed to the air flow and impinged upon by an ionization power from a drive stage for ionizing the air that is supplied by the air flow, and a gas sensor for measuring pollutant concentrations. To provide an air purification device, which purifies the air according to requirements even if the pollutant concentrations change rapidly and/or have extreme values, the driver stage, ionizer and gas sensor cooperate with a controller in a closed loop control circuit, in such a way that the output signal of the gas sensor essentially corresponds to a predetermined target value.

REFERENCES:
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patent: 19651402 (1998-06-01), None
patent: 19919623 (2000-11-01), None
patent: 10007523 (2001-09-01), None
patent: 10111445 (2002-09-01), None
patent: 10134707 (2003-02-01), None
patent: WO 01/62306 (2001-08-01), None
International Search Report for PCT/EP03/08789, Nov. 11, 2003.

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