Spiral membrane module with controlled by-pass seal
US4301013A · kind A · utility
37Cited by
3References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 11, 1980 |
| Grant date | Nov 17, 1981 |
| Priority date | — |
| Expiry date | Sep 11, 2000 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D63/101
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A membrane apparatus, which apparatus comprises a housing and a spiral membrane module positioned in the housing to define an annular clearance space between the outside wall of the spiral membrane module and the interior wall surface of the housing, and an open-mesh type or netting material peripherally surrounding the spiral membrane module and positioned in the annular clearance space in a partial sealing relationship, to provide a controlled by-pass of the feed stream through the open-mesh-type material in the annular clearance space, to prevent accumulation of feed material in the annular space.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.