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:
Oct. 10, 2006

Filed:

Mar. 19, 2004
Applicants:

Woo-dong Sung, Gyeonggi-do, KR;

Dong-hyun Kim, Gyeonggi-do, KR;

Inventors:

Woo-Dong Sung, Gyeonggi-do, KR;

Dong-Hyun Kim, Gyeonggi-do, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F24F 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

An air velocity control unit includes first bars fixed using a frame. Second bars are disposed below the first bars. The second bars are alternatively arranged between the first bars. The second bars are connected with each other. The unit further includes a control member for moving the second bars upwardly and downwardly to control the air velocity. A connecting member connects the second bars to the control member. Clean air flows into a clean room by a controllable velocity in accordance with the upward and downward movement of the second bars.


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