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:
Feb. 03, 2009
Filed:
Dec. 28, 2005
Sen-yung Lee, Tainan, TW;
Shueei-muh Lin, Tainan, TW;
Xi-zhang Lin, Tainan, TW;
Sheng-jye Hwang, Tainan, TW;
Sen-Yung Lee, Tainan, TW;
Shueei-Muh Lin, Tainan, TW;
Xi-Zhang Lin, Tainan, TW;
Sheng-Jye Hwang, Tainan, TW;
National Cheng Kung University, Tainan, TW;
Abstract
An air filtering device for protection suits includes a case in which a fan unit is received and a filtering unit is engaged with a hole in a wall of the case and located outside of the case. A duct of the fan unit extends through a top of the case and is in communication with a muffler connected on the top of the case. A hose is connected with an aperture of the muffler. The fan unit can be driven by AC or DC power and the noise from the fan unit can be reduced by the muffler.