Semipermeable membrane elements
US4500426A · kind A · utility
50Cited by
5References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 24, 1981 |
| Grant date | Feb 19, 1985 |
| Priority date | — |
| Expiry date | Dec 24, 2001 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2321/2016
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A semipermeable membrane element of the type incorporating a flat semipermeable membrane and useful as an artificial kidney. A wave-shaped spacer is provided in intimate contact with the active side of the membrane and forms a multiplicity of parallel channels between the membrane and the spacer for passing a feed liquid therethrough. The parallel channels give a maximum clearance of 35 to 500 microns and 0.6 to 10 mm in width.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.