Patent · US Active

Tubular membrane with a helical ridge, as well as a method and apparatus for producing such a tubular membrane

US10399038B2 · kind B2 · utility

1Cited by

0References

15Claims

0Family size

Assignee

X-Flow B.V. · NL

Inventors

Radek Oborný · Enschede, NL
Stefan Koel · Hengelo, NL
Jens Potreck · Ahaus, DE

Key dates

Filing date	Jan 12, 2015
Grant date	Sep 3, 2019
Priority date	—
Expiry date	Feb 1, 2036

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB29L2031/14
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A tubular membrane includes a support tube made out of one or more flexible tapes of porous support material which have been helically wound into a tube shape with overlapping tape edges which have been sealed to each other, and a semi-permeable membrane layer made of membrane forming material on an inner wall of the support tube. At least one inwardly projecting helical ridge is provided on the inner wall of the support tube, which helical ridge is covered with or forms part of the membrane layer.

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