Electrostatic spraying installation for spraying an electrically conductive liquid product and electrical insulation device for a distribution circuit for an electrically conductive liquid product
US5096126A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 12, 1990 |
| Grant date | Mar 17, 1992 |
| Priority date | — |
| Expiry date | Apr 12, 2010 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B12/14
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
At least part of an electrostatic spraying installation for spraying an electrically conductive liquid product such as a coating product is grounded. The installation includes at least one intermediate storage tank that is electrically insulated from ground and at least one electrostatic sprayer device that is supplied from this intermediate storage tank. The electrostatic sprayer device is connected to a variable or switchable high-tension voltage source. The installation includes at least one electrical insulation device which incorporates a section of insulative conduit and a liquid inlet and a liquid outlet at respective ends of this conduit section. A piston movable in the conduit section scrapes its inside wall clean.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.