Patent · US Expired

Method of and device for producing bundles of hollow fibers

US4681720A · kind A · utility

10Cited by

17References

24Claims

0Family size

Assignee

Akzo N.V. · NL

Inventors

Rudolf Baumgart · Wuppertal, DE
Manfred Martin
Lothar Low · Elsenfeld, DE
Gunter Scheven · Zell am Harmersbach, DE

Key dates

Filing date	Jan 17, 1984
Grant date	Jul 21, 1987
Priority date	—
Expiry date	Jan 17, 2004

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/298
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

Disclosed is a method of and a device for producing bundles of hollow fibers such as used for dialysis. The device includes a guiding device for a continuous fiber which rotates in a plane. At least two groups of take-up elements are mounted on a conveyor. The conveyor is intermittently activated so that a group of take-up elements is placed in a working position in the range of movement of the guiding device, and a strand of a desired thickness is wound around the take-up elements. Thereafter, the conveyor is activated to discharge the first group together with the completed strand from the working position and place the subsequent empty group of take-up elements in the working position, without interruption of movement of the guiding device. During the winding-up of the subsequent strand, the completed strand is cut and wrapped into bundles.

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