Patent · US Active

Air filtering device for protection suits

US7485165B2 · kind B2 · utility

2Cited by

1References

6Claims

0Family size

Assignee

NATIONAL CHENG KUNG UNIVERSITY · TW

Inventors

Sen-Yung Lee · Taipei, TW
Shueei-Muh Lin · Danei, TW
Xi Lin · Tainan, TW
Sheng-Jye Hwang · Tainan, TW

Key dates

Filing date	Dec 28, 2005
Grant date	Feb 3, 2009
Priority date	—
Expiry date	Aug 17, 2027

Classification

Technology area (CPC A)Human Necessities
CPC primaryA62B23/00
WIPO fieldOther consumer goods
WIPO sectorOther fields

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.