Air cleaner with improved airflow

Gas separation: processes – Electric or electrostatic field – And nonelectrical separation of fluid mixture

Reexamination Certificate

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Details

C095S070000, C095S078000, C096S039000, C096S055000, C096S057000, C096S063000, C096S094000, C096S222000

Reexamination Certificate

active

11042746

ABSTRACT:
An air cleaner is provided according to an embodiment of the invention. The air cleaner includes an air duct including an inlet end and an outlet end, a pre-filter positioned at the inlet end, an electrostatic precipitator positioned in the air duct downstream of the pre-filter, a post-filter positioned in the air duct downstream of the electrostatic precipitator, and a fan unit positioned in the air duct downstream of the post-filter. Airflow travels from the inlet end to the outlet end. The airflow first encounters the pre-filter, encounters the electrostatic precipitator after encountering the pre-filter, encounters the post-filter after encountering the electrostatic precipitator, and encounters the fan unit after encountering the post-filter. Each of the pre-filter, the electrostatic precipitator, and the post-filter can be separately installed and removed from the air duct.

REFERENCES:
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patent: 4261712 (1981-04-01), Kinkaide et al.
patent: 4268282 (1981-05-01), MacKenzie et al.
patent: 4597781 (1986-07-01), Spector
patent: 5433772 (1995-07-01), Sikora
patent: 5702507 (1997-12-01), Wang
patent: 6296692 (2001-10-01), Gutmann
patent: 6428611 (2002-08-01), Andolino et al.
patent: 2003/0029319 (2003-02-01), Ninomiya et al.
patent: 1127980 (1982-07-01), None
patent: 63-185424 (1988-08-01), None
patent: 10305238 (1998-11-01), None
patent: 2000 325753 (2000-11-01), None

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