Cartridge paint-charging method and device therefor
US6612345B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 4, 2001 |
| Grant date | Sep 2, 2003 |
| Priority date | — |
| Expiry date | Jan 4, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B5/04
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An apparatus for replenishing paint into a paint cartridge (25), which is capable of putting paint in respiratory circulation while the cartridge is in a waiting state. The apparatus includes a replenishing valve (61) which is capable of feeding paint to and from a paint chamber (30) of the paint cartridge (25) which is set on a replenishing stool (52), and a respiratory paint circulation valve (91) which is capable of feeding paint-extruding thinner to and from a thinner chamber (31) of the cartridge. After switching the replenishing valve (61) to a drain or discharge side, paint-extruding thinner is supplied from the respiratory paint circulation valve (91) to push paint out of the paint chamber (30) of the cartridge (25). Then, after switching the replenishing valve (61) to the side of a paint supply source, paint-extruding thinner is discharged by way of the respiratory paint circulation valve (91) to suck paint into the paint chamber (30). As a consequence, paint in the cartridge (25) is put in respiratory circulation to prevent separation and sedimentation of pigment components of the paint.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.