Remote power source for electrostatic paint applicator
US6522039B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 13, 1996 |
| Grant date | Feb 18, 2003 |
| Priority date | — |
| Expiry date | Dec 13, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K11/05
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A remote low voltage power source for electrostatic paint applicators used in hazardous locations. A low voltage generator and voltage conditioning and regulating circuitry are mounted in a small explosion proof housing. A generator shaft and a shaft on a voltage level adjusting potentiometer extend through and projects from the housing. The flamepath and the flame gap for the shafts meet explosion proof standards while permitting shaft rotation. An air driven turbine is mounted on the exterior of the housing and is connected to the projecting generator shaft to drive the generator. The low voltage is applied to a spray gun which includes circuitry for increasing the voltage to a high level for electrostatic charging sprayed paint.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.