Method of fabrication of coreless hollow filament separatory module
US4351092A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 28, 1979 |
| Grant date | Sep 28, 1982 |
| Priority date | — |
| Expiry date | Jun 28, 1999 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H2701/31
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The method of fabricating a coreless hollow filament bundle of interlaced hollow filaments to be used as the membrane elements in a separatory module comprising the steps of providing first and second axially spaced co-axially rotatable engagement members carrying filament receiving arms, concomitantly rotating said rotatable engagement members while alternately engaging filaments upon a respective filament receiving arm of one rotary member, causing said filament to traverse the space between said first rotary member and the second rotary member and engaging said filament upon a receiving arm of said second rotary member, and continuously feeding said filament between said receiving arms of said rotary members so as to provide a coreless bundle of filaments interlacing with one another in left and right hand helices at angles to the common axis of rotation of the two rotary members.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.