Swirl gun for powder particles
US6874712B2 · kind B2 · utility
3Cited by
10References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 27, 2002 |
| Grant date | Apr 5, 2005 |
| Priority date | — |
| Expiry date | Nov 26, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B5/0533
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A powder spraying gun generates a desired pattern of electrostatically charged particles for coating a workpiece without rotating parts or particle deflectors. The powder pattern is generated with a funnel-shaped output in conjunction with air introduced into a powder charging chamber of the gun in a tangential swirling motion. The swirling air is additionally used to purge agglomerated powder particles from the charging electrodes in the charging chamber. The charging chamber surface is fashioned from material exhibiting low friction or high resistance to powder impact fusion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.