Process and apparatus for cleaning filters
US6457480B1 · kind B1 · utility
4Cited by
18References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 27, 2001 |
| Grant date | Oct 1, 2002 |
| Priority date | — |
| Expiry date | Jul 15, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB08B7/0021
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process and apparatus for cleaning filters prior to recycling or disposal. In this process and apparatus liquid or supercritical carbon dioxide contacts the plugged pores of a filter under conditions in which carbon dioxide remains in the liquid or supercritical state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.