Electrostatic spraying installation for water-based paint
US5196067A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 26, 1991 |
| Grant date | Mar 23, 1993 |
| Priority date | — |
| Expiry date | Jul 26, 2011 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B13/0278
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An electrostatic spraying installation for low-resistivity paint comprises a conveyor which conveys large objects such as automobile bodies, to be painted with a substantially constant distance between their respective leading edges. A plurality of sprayers is positioned to paint respective specific parts of the objects as they are conveyed past the sprayers by the conveyor. A respective spray member in each sprayer is connected to a high-tension electrical supply. All the spray members are substantially situated in a common plane perpendicular to the path of movement of the objects along the conveyor or in a plurality of planes perpendicular to this path and spaced from each other by the previously mentioned substantially constant distance. A plurality of electrically grounded closed loop primary paint circulation circuits each contain paint of a respective color different than the color of the paint in each of the other primary circuits. A plurality of intermediate storage tanks electrically insulated from ground, equal in number to the primary circuits, are each assigned to a respective primary circuit. An arrangement for selectively connecting each intermediate storage tank to …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.