Process for coating hollow objects
US5478597A · kind A · utility
Inventor
Key dates
| Filing date | Aug 19, 1994 |
| Grant date | Dec 26, 1995 |
| Priority date | — |
| Expiry date | Aug 19, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC25D13/14
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Process for coating hollow objects exhibiting an opening, and beverage cans in particular, in which the hollow objects are immersed completely and with the opening downward in a paint-filled submersion bath, the openings being moved into the vicinity of nozzles for the paint, which are located underneath the surface of the liquid in the submersion bath and which at least partially displace the air trapped in the hollow objects immersed in the submersion bath by means of streams of paint discharging from the nozzles. With this process hollow objects can be painted uniformly inside and outside in one step without its being necessary to turn them either to fill them with paint when immersed in the submersion bath or to drain them after their being lifted out of the bath.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.