Air assist for AC ionizers
US7697258B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 6, 2006 |
| Grant date | Apr 13, 2010 |
| Priority date | — |
| Expiry date | May 13, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01T23/00
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
At least one orifice is added to an AC ionizer with nozzles and ionizing electrodes that are used to remove static charge. The orifice is placed in a location where electrostatic forces are weak and where gas ions can be easily extracted from the ionizer. Ionizer effectiveness is enhanced by recovering gas ions that are normally trapped between the nozzles and under a portion of the ionizer from which the nozzles project. Without the orifice properly positioned, the trapped gas ions are lost by recombination or grounding. With the orifice positioned in an area of weak electrostatic forces, more gas ions are available for discharging the charged object. The combined air consumption of nozzles plus at least one orifice is the same or less than nozzles alone would consume for a given discharge time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.