Electrostatic powder coating method and apparatus
US5711489A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 16, 1995 |
| Grant date | Jan 27, 1998 |
| Priority date | — |
| Expiry date | Aug 16, 2015 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B5/12
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An electrostatic powder coating apparatus is provided which includes a spray gun and a powder supply unit. The spray gun includes facilities for dually functioning to both pulverize and disperse the aggregated powder and powder adhesion preventing facilities. Both the pulverizing and dispersing facilities and the powder adhesion prevention facilities are provided in a nozzle lip of the spray gun of the electrostatic powder coating apparatus. The powder supply unit includes a temperature/humidity control facilities for adjusting the temperature and humidity of the compressed air supplied to an air chamber within the powder supply unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.