Pleated air filter with reverse pulsating air flow cleaning
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United States of America Patent
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N/A
Issued Date -
Dec 30, 2004
app pub date -
Jun 24, 2004
filing date -
Jun 26, 2003
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
An air filter assembly has a pleated filter cartridge for filtering out dust from the air, this unit being fabricated of a suitable paper material. The cartridge is in the form of a receptacle having an open top, a closed bottom and closed sides which run entirely there around. Pleats are formed in the sides of the cartridge. The pleats are separated from each other by an adhesive bead which may be formed from a hot melt material. In the filtering cycle air is drawn out by a blower from the inside of the cartridge thereby drawing air from the outsides through the pleated sides which filter our dirt. The filtered air is fed from the cartridge to an area requiring clean air. Periodically, the filter is automatically cleaned by compressed pulsating air which is fed to the interior of the cartridge drives through the pleated sides, thereby blowing off dirt accumulated on the cartridge.
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