Membrane filtration apparatus and method of making a membrane filtration unit
US5084220A · kind A · utility
26Cited by
3References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 19, 1991 |
| Grant date | Jan 28, 1992 |
| Priority date | — |
| Expiry date | Mar 19, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S264/62
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
In the method of making a filtration unit, envelope-shaped membrane units (62) are placed in a stack, a curable liquid binder (101) is introduced between the membrane units from at least one surface of the filtration unit to a predetermined depth (a), and upon curing of the binder a layer of the binder together with the marginal portions of the edges of the membrane units embedded therein is removed, such as by surface cutting or machining, up to a depth (b) smaller than the depth (a).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.