Filter structure for a vehicle air conditioner

Details Filter structure for a vehicle air conditioner Filter structure for a vehicle air conditioner

2006-02-21

2006-02-21

Hopkins, Robert A. (Department: 1724)

Gas separation: apparatus

With inspection means

Translucent

C096S417000, C096S418000, C055S385300, C055SDIG034, C356S438000

Reexamination Certificate

active

07001451

ABSTRACT:
A filter structure of a vehicle air conditioner comprises a filter cartridge provided with a plurality of filter papers within a case and a light source. The light source is provided at a position within the filter papers for radiating light toward one side of the case. The light is blocked when pollutants deposited on the filter papers are enough to cause a contaminated state of the filer to reach a preset state. A display section is provided on the case for transmitting the light, radiated from the light source, to be visually checked on the external side. Therefore, the filter structure allows a driver to check a proper exchange time of the filter visually through a display section in which a display state changes according to a contaminated state of the filter.

REFERENCES:
patent: 5796472 (1998-08-01), Wirthlin

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