Back-flushable filtration device and method of forming and using same
US5114581A · kind A · utility
74Cited by
11References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 10, 1991 |
| Grant date | May 19, 1992 |
| Priority date | — |
| Expiry date | Jan 10, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S55/30
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A back-flushable filtration device is provided. The device includes a monolith of porous material having an inlet end and an outlet end. The passageways of the monolith are plugged at the inlet and outlet ends of the monolith, thereby preventing direct passage of feed stock through the passageways from the inlet end to the outlet end. A microporous membrane of mean pore size smaller than the mean pore size of the monolith material covers the surface of the passageways. Methods for making the back-flushable filter as well as methods for using the back-flushable filter also are provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.