Title:
AIR FILTERING APPARATUS
Document Type and Number:
WIPO Patent Application WO/2014/005291
Kind Code:
A1
Abstract:
An air filtering apparatus comprises filtering paper (1) and a sealing cover (2). The filtering paper (1) is of a through cavity shape, and one end is an air inlet, and the other end is sealed through the sealing cover (2). When the air filtering apparatus is mounted on an air filtering device for use, air is blocked by the sealing cover (2) when entering a through cavity of the filtering paper (1), so that an impulse force of the air is retarded and a situation where impurities are extruded at a high speed to pass through the filtering paper (1) is avoided, and at the same time, because the area of a side wall of the through cavity is larger than the area of flat-plate filtering paper, the air filtering effect is also remarkably improved, and the filtering speed is greatly increased.
Inventors:
ZHAO BING (CN)
Application Number:
PCT/CN2012/078134
Publication Date:
January 09, 2014
Filing Date:
July 03, 2012
Export Citation:
Assignee:
ZHAO BING (CN)
International Classes:
A61L9/22; B01D46/24; B01D46/42
Domestic Patent References:
| WO1994028998A1 | 1994-12-22 |
Foreign References:
| CN101889844A | 2010-11-24 | |||
| CN1213983A | 1999-04-14 | |||
| CN1518476A | 2004-08-04 | |||
| CN202620910U | 2012-12-26 | |||
| CN102698539A | 2012-10-03 |
Download PDF: