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.
Patent No.:
Date of Patent:
Dec. 22, 2015
Filed:
Feb. 28, 2012
Applicants:
Naoya Ikeno, Kyoto, JP;
Yousuke Okui, Osaka, JP;
Inventors:
Naoya Ikeno, Kyoto, JP;
Yousuke Okui, Osaka, JP;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F24F 9/00 (2006.01); F24F 3/16 (2006.01); F24F 11/00 (2006.01);
U.S. Cl.
CPC ...
F24F 3/161 (2013.01); F24F 2011/0041 (2013.01); F24F 2221/40 (2013.01);
Abstract
The present invention is to provide a backflow prevention apparatus of a clean room for solving a negative pressure point in the clean room so as to prevent a backflow from underfloor of the clean room. An intake port sucks the air of an underfloor chamber, a fan supplies the air to an upper part in the apparatus, and a blowoff port is installed on a side surface of an upper-floor part of the apparatus for supplying the air into the clean room. By supplying the air of the underfloor chamber into the clean room, the backflow from the underfloor chamber into the clean room is prevented.