The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Dec. 24, 2002

Filed:

Dec. 13, 2000
Applicant:
Inventors:

Hidetoshi Wakamatsu, Tokyo, JP;

Mikio Matsuki, Tokyo, JP;

Norio Tanaka, Tokyo, JP;

Hiroshi Ogata, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 4/706 ;
U.S. Cl.
CPC ...
B01D 4/706 ;
Abstract

An apparatus for removing impurity substances in the air includes a first filter for removing solid substances in the air flowing in a flow passage defined by a housing; a first cooler for cooling the air to not higher than its dew-point temperature; a wet-type impurity removing mechanism for capturing gaseous substances in the air; a second cooler; and a second filter. The wet-type impurity removing mechanism includes a first liquid atomizer having a plurality of nozzle ports for spraying, arranged mutually spaced apart and facing each other in the direction of the air flow passage; first and second condensing and capturing assemblies located across the first atomizer and spaced apart from each other, with the first condensing and capturing assembly being upstream and the second condensing and capturing assembly being downstream from the first atomizer; a second atomizer for capturing any remaining gaseous substances in the air; and a third condensing and capturing assembly.


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