Filter regeneration system
US5630434A · kind A · utility
10Cited by
22References
6Claims
0Family size
Inventors
Key dates
| Filing date | Jun 6, 1995 |
| Grant date | May 20, 1997 |
| Priority date | — |
| Expiry date | Jun 6, 2015 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06F43/086
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Stripping contaminants/impurities from a filter includes subjecting the filter to a negative gauge pressure and applying superheated solvent vapor to the filter while maintaining the negative gauge pressure. The filter can be heated prior to being subjected to the negative gauge pressure. The superheated vapor may be composed of the same compounds as impurities being removed from the filter. The filter may be an activated carbon filter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.