Electrostatic nozzle apparatus
US7160391B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 20, 2004 |
| Grant date | Jan 9, 2007 |
| Priority date | — |
| Expiry date | Feb 3, 2025 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B1/14
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A nozzle spray head is provided for use in a dynamic electrostatic air filter, in which the nozzle spray head assembly exhibits multiple nozzle orifices as outlet ports, which extend from the bottom of the nozzle body such that the distances between the outlet ports and a target member are not constant. The charged multiple outlet ports exhibit a more uniform electric field at their tips, thereby enabling a better and more uniform spray pattern to be emitted by each of the individual outlet ports. In one embodiment, the outlet ports are grouped in concentric circles, in which the innermost circle comprises outlet ports of the greatest lengths, and the outermost circle comprises outlet ports of the smallest lengths.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.