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:
Mar. 08, 1994

Filed:

Jul. 15, 1992
Applicant:
Inventors:

Hisato Haraga, Kanagawa, JP;

Hajime Miyazaki, Kanagawa, JP;

Yasuo Hamada, Kanagawa, JP;

Katsushi Akamatsu, Kanagawa, JP;

Ayako Hirano, Kanagawa, JP;

Assignee:

Toto Ltd., Fukuoka, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61L / ; E03D / ; B01D / ; B01D / ;
U.S. Cl.
CPC ...
422-5 ; 422-4 ; 422120 ; 422122 ; 422124 ; 422125 ; 4216 ; 4217 ; 55317 ; 55400 ; 55403 ; 55408 ;
Abstract

Rotatable circular plates are stacked apart to form thin air layers therebetween. Rotation of the circular plates moves air over an air treatment material: catalyst or adsorbent. In one embodiment, the air treatment material is affixed to the surface of the circular plates. In another embodiment, the circular plates are formed from the air treatment material. The increased velocity of air relative to the circular plates causes separation of laminar flow, promotes boundary-layer turbulence near the plate surfaces, and promotes propagating stall in the air layers. These phenomena enhance the contact between the flowing air and the air treatment material.


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