Patent · US Active

Devices and methods for the production of fiber strands

US8327901B2 · kind B2 · utility

2Cited by

9References

31Claims

0Family size

Assignee

Fresenius Medical Care Deutschland GmbH · DE

Inventors

Elmar Barra · Nalbach, DE
Hermann Reuschenbach · Koblenzer Straße, DE
Joern Hoermann · Neunkirchen, DE

Key dates

Filing date	Nov 27, 2007
Grant date	Dec 11, 2012
Priority date	—
Expiry date	Jun 15, 2029

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01D2323/42
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

An apparatus for the reeling up of fiber bundles, in particular of hollow fiber membrane bundles, and in particular for the manufacture of dialysis filters, includes a reel carrier rotatable around a main axis. The apparatus includes at least two reels which are rotatably supported on the reel carrier, with the axes of rotation of the reels being perpendicular to the main axis of the reel carrier. The apparatus can be used for the wrapping of a fiber bundle with a film, having a receiver of first and second side elements and a flexible channel fastened between them for the reception of the film and the fiber bundle. A drive is provided to move at least the first side element transversely to the channel, and at least one folding device movable transversely to the channel for the folding of the film around the fiber bundle.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.