Filtering device for equipping a ventilation and/or heating and/or air conditioning unit, more particularly for a motor vehicle
US6228152A · kind A · utility
17Cited by
13References
38Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 18, 1999 |
| Grant date | May 8, 2001 |
| Priority date | — |
| Expiry date | Aug 18, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60H2003/0691
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A filter device has a frame, a grid, a filter medium and, if desired, a gas adsorption medium. The frame is flexible so as to be temporarily deformable and is made of polypropylene, as is the grid. The filter medium is a mat of non-woven material and the gas adsorption medium is activated carbon.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.