Apparatus for shredding and packaging hazardous waste containers and the contents thereof
US5205495A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 18, 1992 |
| Grant date | Apr 27, 1993 |
| Priority date | — |
| Expiry date | Feb 18, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S241/38
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An apparatus shreds hazardous waste drums and their contents in an oxygen-limited environment, transports the shredded material to a dispenser that dispenses metered amounts of the material into fire pails. The apparatus has two vertically separated shredders that are located in an enclosed shell that has an inert gas fed into it in a controlled manner by a purge system. A lift in an enclosed shaft raises the drums, two at a time, and deposits them into an airlock from which they are released one at a time into the upper shredder. A control system automatically processes the material through the apparatus from when the containers are placed into the lift until the material reaches the dispenser and insures that no stage of the process will commence until the proceeding and following stages are completed. The control system also provides safety checks at each stage to prevent handling or processing accidents.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.