Atomizing bowl and electrostatic rotary sprayhead unit equipped therewith
US6347754B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 27, 2000 |
| Grant date | Feb 19, 2002 |
| Priority date | — |
| Expiry date | Sep 27, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B5/0533
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention concerns an atomizing bowl (4) for coating product electrostatic rotary sprayhead unit (1), said bowl comprising a bell (7) for distributing the product made from a conductive material and arranged to be brought to high voltage when the sprayhead unit is in operation, so as to charge electrostatically said product by contact. The invention is characterized in that said bell is electrically connected to at least one corona discharge element (22, 25, 28) from one tapered end (22a, 25a, 25b, 28a), said tapered end being arranged in the proximity of said bowl outer surface. The bowl is electrically connected to a generator capable of detecting variations in the glow currents passing through the discharge elements (22, 25, 28) or the bowl tips.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.