Hydrophobic barrier for filters and filter media
US6123076A · kind A · utility
15Cited by
25References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 8, 1998 |
| Grant date | Sep 26, 2000 |
| Priority date | — |
| Expiry date | May 8, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2239/069
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A filter is disclosed having a layer of electret filter media or triboelectric filter media immediately adjacent or in intimate contact with one, or both sides, of a layer of hydrophobic media. Such filter is placed in communication with the upstream and/or downstream side of a mechanical electronic or electrostatic filter to solve problems present in the prior art. Additionally, a medical ventilator filter and system using such a filter is disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.