Cleaning device upon color-change in an electrostatic mutli-color coating apparatus
US4728034A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 6, 1986 |
| Grant date | Mar 1, 1988 |
| Priority date | — |
| Expiry date | Feb 6, 2006 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B12/149
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
In a cleaning device upon color-change in an electrostatic multi-color electrostatic coating apparatus comprising first and second color-change devices each for supplying paints of a multiplicity of colors, cleaning air and thinner selectively through the first and second paint supply channels respectively and a valve mechanism disposed near the coating machine for supplying a paint supplied from the first or second color-change device through the first or second paint supply channel to the coating machine by way of a common paint hose, the valve mechanism comprises first and second switching valves each having exit channels for two ways connected to the first or supply channel, and low pressure air and thinner supply valves disposed respectively to a manifold in communication with the paint hose in which each one of exit channels for the first and second switching valves is connected by way of the manifold to the paint hose, while each the other of exit channels for the switching valve is connected by way of the liquid discharging ON-OFF valve to a liquid discharge channel communicating with a liquid discharge tank.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.