Self-balancing bipolar air ionizer
US5055963A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 15, 1990 |
| Grant date | Oct 8, 1991 |
| Priority date | — |
| Expiry date | Aug 15, 2010 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01T23/00
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Air ionizing apparatus that produces both positive and negative ions has a housing with air inlet and outlet passages, a plurality of spaced apart air ionizing electrodes and a high voltage supply which applies positive and negative voltages to separate electrodes. A fan creates an airflow that carries the ions out of the housing, the fan preferably being between the electrodes and the outlet passages to promote intermixing of positive and negative ions. The high voltage region of the high voltage supply is isolated from any direct current path to ground. The electrodes then inherently acquire a D.C. voltage bias, when necessary, that maintains an equal output of positive and negative ions without requiring use of an air ion sensor and feedback circuit for the purpose.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.