Curved channel membrane filtration
US5204002A · kind A · utility
34Cited by
0References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 24, 1992 |
| Grant date | Apr 20, 1993 |
| Priority date | — |
| Expiry date | Jun 24, 2012 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2321/2016
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A filtration apparatus and method utilizes inner and outer walls of porous material which curve around an axis of curvature to define a narrow channel having a spiral shape. The curvature of the spiral and/or the gap width of the channel is selected to create and maintain Dean vortices within the flow of fluid along the channel to maintain good flux of filtrate through the porous walls.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.