Electrostatic powder coating method and apparatus
US5915621A · kind A · utility
2Cited by
18References
22Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Oct 16, 1997 |
| Grant date | Jun 29, 1999 |
| Priority date | — |
| Expiry date | Oct 16, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B5/12
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An electrostatic powder coating gun for dispersing aggregate powder onto substrates. The gun includes swirling air passage outlets to form a vortex of air inside the spray gun tip to reduce powder adhesion and assist in pulverizing the powder material. The coating gun employs a powder supply unit having a fluidized bed that includes temperature and humidity controls to adjust the temperature and humidity of the compressed air supplied to the spray gun and a mixer to agitate the powder in the container.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.