Color change system for spray coating apparatus
US4337282A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 12, 1980 |
| Grant date | Jun 29, 1982 |
| Priority date | — |
| Expiry date | Aug 12, 2000 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B12/149
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A color change system for spray coating apparatus is characterized by two pumps, each of which is connectable with a selected color of coating material for providing the same to spray coating apparatus. The arrangement is such that the pumps alternately supply different colors of coating material to the coating apparatus, and when one of the pumps is supplying material the other is being cleansed of previously supplied material. In this manner, one pump is always clean and ready for supplying a newly selected color of material, so that any number of different colors of coating material may be provided to the coating apparatus with minimum numbers of pumps, e.g., two pumps. In one embodiment the color change system is used with automatic spray coating apparatus, and in another with manual or hand held coating apparatus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.