Air filter including electrostatic precipitation, and method of operating same
US5797978A · kind A · utility
Inventors
Key dates
| Filing date | Nov 27, 1995 |
| Grant date | Aug 25, 1998 |
| Priority date | — |
| Expiry date | Nov 27, 2015 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D46/50
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An air filter body includes a plurality of discs of electrically insulating material arranged in a stack and having ribbed contacting faces defining small filtering passageways between the contacting faces of adjacent discs. Each disc has an electrode layer insulated by the respective disc from the electrodes of the adjacent discs. Each electrode is electrically connected to an electrical terminal at an edge of the respective discs. Electrical conductors connect the electrical terminals of alternating discs to one side of a voltage source, and the electrical terminals of the remaining alternating discs to the other side of the voltage source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.