Electrostatic particle filtration
US5405434A · kind A · utility
78Cited by
29References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 22, 1993 |
| Grant date | Apr 11, 1995 |
| Priority date | — |
| Expiry date | Sep 22, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S323/903
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
An on board electrostatic filter for a vacuum cleaner is disclosed. The filter includes a pair of conductive filaments insulated from one another and disposed close together in a substantially parallel, side-by-side relationship. Circuitry is provided for applying an electrical potential difference between the two conductors. This dual filament conductor is preferably packed into a relatively small volume in a tortuous configuration, to form a random mesh, or can be oriented in a more regular serpentine configuration. Other embodiments describe the mesh electrostatic filter to purify air in an HVAC system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.