Method and apparatus for treating surfaces of an article with a fluid adapted to coat, clean or react chemically with the article
US4152173A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 6, 1977 |
| Grant date | May 1, 1979 |
| Priority date | — |
| Expiry date | Dec 6, 1997 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB08B9/08
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Apparatus for treating open-mouthed cylindrical containers with a fluid adapted to coat, clean or react chemically with the surface of the containers, comprises a turret fitted with pot assemblies spaced around its periphery, each pot assembly having an internal cavity for reception of a container and a lid for closing the cavity, conduit means for passing fluid through the cavity of each pot assembly, a first pump operable to circulate the fluid in a liquid phase from a reservoir through the conduit means and each cavity so that the liquid flows along the surfaces of a container in the cavity and effects treatment of the surfaces, a second pump operable to circulate the fluid in a gaseous phase from a source thereof through the conduit means and each cavity so as to purge liquid from the cavity, a third pump operable to extract fluid in the gaseous phase from each cavity through the conduit means and thereby reduce the pressure therein so as to effect drying of the container and cavity by vaporization of any liquid therein, and a distributor for connecting each of the pumps in succession to the conduit means of each pot assembly in synchronism with rotation of the turret. The gase…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.