Patent · US Active

Spinneret, device having a spinneret, method for producing a hollow fiber or hollow fiber membrane by means of a spinneret and filter

US12128364B2 · kind B2 · utility

0Cited by

4References

24Claims

0Family size

Assignee

Fresenius Medical Care Deutschland GmbH · DE

Inventors

Torsten Keller · Prüm, DE
Jens-Holger Stahl · Ottweiler, DE
Eric Sommer · Rancho Cordova, US

Key dates

Filing date	May 9, 2018
Grant date	Oct 29, 2024
Priority date	—
Expiry date	Jul 26, 2041

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01D2325/04
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A spinning nozzle is provided for the extrusion of a hollow fiber from one or more spinning masses. An apparatus that includes a spinning nozzle, and a method for extruding a hollow fiber using the spinning nozzle, are also provided. The spinning nozzle has an inlet port for each spinning mass to be extruded. The inlet port is for introducing the spinning mass into the spinning nozzle. An outlet port for the exit of a spinning mass along an outlet axis, is also provided. A spinning mass flow channel is used to guide the spinning mass from the inlet port to the outlet port. The spinning mass flow channel includes a flow manipulation section having an inlet and an outlet and includes a flow-guiding structure for influencing a spinning mass through the spinning mass flow channel.

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