Triboelectric sprayer
US6959884B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 5, 2002 |
| Grant date | Nov 1, 2005 |
| Priority date | — |
| Expiry date | Feb 5, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B5/047
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention concerns a triboelectric sprayer for spraying electrostatic powder paint, comprising a powder intake, an air intake, a conduit transporting air and powder while providing the electrical charge of the powder and, in front of the charging conduit, means for emitting at least an air-powder mixture jet. The air intake is located in the axis of the charging conduit, while the powder intake is arranged laterally and converges in an acute angle with the air intake, in a point located upstream of the charging conduit. The air intake includes of an injector made of electrically conductive material which also constitutes an earthing member of the wall of the charging conduit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.