Detachable cover and drum liner for storage and transport of controlled materials
US5255492A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 13, 1992 |
| Grant date | Oct 26, 1993 |
| Priority date | — |
| Expiry date | Oct 13, 2012 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D77/06
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A method of handling materials requiring controlled handling and storage using a storage and transport drum assembly. The storage and transport drum includes a removable cover and a liner bag assembly. The liner bag includes bottom, side and top walls and a collar surrounding an opening in the top wall. The collar includes a groove for receiving a retainer ring that fits within a groove in the side all of a drum cover fitting. An exterior plug is provided for the drum cover fitting and an interior plug for the bag collar. The fitting, the collar, and the retainer ring are arranged such that the retainer ring retains the collar against unintentional separation relative to the fitting, but the bag and collar may be intentionally separated by pushing the bag into the drum when desired. The liner bag is assembled with the drum prior to filling. After the contents have been used the initial filler is notified and the bag is recycled.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.