Apparatus for electrostatic coating
US7626602B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Sep 15, 2006 |
| Grant date | Dec 1, 2009 |
| Priority date | — |
| Expiry date | Nov 9, 2027 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B5/14
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention generally relates to an electrostatic coating apparatus for spraying a stream of particles onto a medium, and in particular to an apparatus equipped with a powder coating suspension device such as a multivolume chamber, or a air stream creation device. What is also contemplated is the use of a plurality of variable openings in the enclosure, used in conjunction with a plurality of conductors, to dispose a stream of particles onto a moving medium in successive layers. In yet another embodiment, the stream of particles is directed in a directional electrical field created by electrodes placed adjacent to directional shields. The present disclosure relates to an in-line industrial device able to coat paint, starch, thermoplastic materials, or any other powder material onto a medium by successively controlling a plurality of parameters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.