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:
Mar. 27, 2007
Filed:
Aug. 10, 2004
Hiroaki Takamatsu, Tokyo, JP;
Hiroaki Takamatsu, Tokyo, JP;
NEC Viewtechnology, Ltd., Tokyo, JP;
Abstract
A multiblade fan includes a case having an air intake port and an air exhaust port, an impeller disposed in said case and having a plurality of blades rotatable about the center of said air intake port, and a noise silencer fin extending substantially parallel to the opening plane of said air intake port, the noise silencer fin being disposed near the tongue of said case. The noise silencer fin suppresses excessive pressure variations and flow speed fluctuations in the vicinity of the air intake port, thereby suppressing the generation of noise.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile