Safe collection and disposal of hazardous, dry particulate material
US5507859A · kind A · utility
32Cited by
6References
2Claims
0Family size
Inventor
Key dates
| Filing date | Apr 3, 1995 |
| Grant date | Apr 16, 1996 |
| Priority date | — |
| Expiry date | Apr 3, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S55/03
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process, and apparatus for practicing the process, for removing hazardous material collected on a cleanable HEPA filter in a manner which protects operating personnel from exposure to that hazardous material comprising use of a bag composed of high efficiency filter material, the bag being positioned within a vacuum container having a removable lid. The bag has an open top which extends out of the container during the cleaning operation, the container being closed by a removable lid. The system allows the lid to be removed and the bag sealed and extracted from the container without shutting off the vacuum generated flow of air.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.