Air filter with combined enhanced collection efficiency and surface sterilization
US6245132A · kind A · utility
37Cited by
26References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 7, 2000 |
| Grant date | Jun 12, 2001 |
| Priority date | — |
| Expiry date | Aug 7, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB03C3/74
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Electrically enhanced filter, includes a filter element, a pair of electrodes sandwiching the filter element, a DC, AC, pulse, or RF power supply coupled to the electrode to create an electrostatic field across the filter element and to produce attracting forces between micro-organisms contained in the air and the filter element, and a power supply creating a sterilizing electrical field, which may be either an RF, DC, pulse, or AC power supply coupled to the electrodes and creating discharging or non-discharging voltages on the filter element to destruct the micro-organisms at and in the vicinity of the filter element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.