Apparatus for emptying and rinsing non-recoverable flasks containing a toxic product
US5220947A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 19, 1991 |
| Grant date | Jun 22, 1993 |
| Priority date | — |
| Expiry date | Aug 19, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2001/1056
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In order to automatically carry out the emptying and rinsing of non-recoverable bottles or flasks (78) made from a perforatable material such as polyethylene and e.g. containing a low activity solution (88), an apparatus is proposed making it possible to pass the inverted bottles under a double-walled needle (44). The needle (44), operated by a jack, perforates the bottom (82) of the flask (78). Compressed air is then injected into the bottle above the solution (88) through the annular passage formed between the walls of the needle (44), so as to discharge the solution through the central passage of the needle. The flask is then rinsed by injecting pressurized water in place of the compressed air. Finally, the rinsing water is discharged by a further compressed air injection. The emptied and rinsed flasks are then passed to a station, where they are directly discharged into a storage drum.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.