Process and apparatus for electrostatically coating objects
US4402991A · kind A · utility
14Cited by
5References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 20, 1982 |
| Grant date | Sep 6, 1983 |
| Priority date | — |
| Expiry date | Aug 20, 2002 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B5/0415
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Process for electrostatically coating objects with a fluid, for instance liquid paint, by applying a high voltage to a spray bell and by feeding the fluid to a revolving, driven spray bell. The flow-rate of the fluid supplied to the center of the spray bell is decelerated nearly to zero when it enters the bell, then the rate of the fluid is increased by being accelerated by the bell to 15,000 to 60,000 rpm, and the fluid thereupon is centrifuged off the spray rim of the bell and is guided to the object to be coated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.