Electrostatically assisted coating apparatus with focused web charge field
US6666918B2 · kind B2 · utility
0Cited by
73References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 26, 2002 |
| Grant date | Dec 23, 2003 |
| Priority date | — |
| Expiry date | Jul 26, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05D1/26
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A system for applying a fluid coating onto a substrate includes forming a fluid wetting line by introducing a stream of fluid onto a first side of the substrate along a laterally disposed fluid-substrate contact area. An electrical force is created on the fluid from an electrical field (originating from electrical charges which are on the second side of the substrate) that is substantially at and downstream of the fluid wetting line. The electrical field can be generated by charges that have been transferred to the second side of the substrate from a remote charge generator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.