Cleaning method upon color-change in an electrostatic multi-color coating apparatus
US4728033A · 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
Cleaning method upon color-change in an electrostatic multi-color coating apparatus adapted to supply paints of a multiplicity of colors, a cleaning air and a cleaning thinner selectively from a color-change device by way of a paint supply channel and a paint hose to an electrostatic multi-color coating machine, comprises successively steps of supplying a cleaning air and a cleaning thinner to the paint supply channel and cleaning the inside thereof by removing to discharge the paint remaining in the paint supply channel to a liquid discharge tank, sucking the paint remaining in the electrostatic coating machine and in the paint hose connected at one end thereof to the electrostatic coating machine from the other end of the paint hose and discharging the paint thus sucked to the liquid discharge tank, and then supplying a cleaning thinner and a cleaning air to the paint hose and the electrostatic coating machine to clean the inside thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.