Patent · US Active

Filter element and method for the production thereof

US10350552B2 · kind B2 · utility

0Cited by

3References

20Claims

0Family size

Assignee

WTA VOGTLAND GMBH · DE

Inventors

Reinhard Voigt · Gotha, DE
Volker Albrecht · Plauen, DE
Hardy Mueller · Bisingen, DE
Kurt Bock · Erfurt, DE
Eberhard Semmler · Blankenhain, DE

Key dates

Filing date	Apr 29, 2015
Grant date	Jul 16, 2019
Priority date	—
Expiry date	Sep 26, 2035

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01D2325/40
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

The invention relates to a filter element (1) comprising a drainage element (2) which is arranged between two filter membranes (3). According to the invention, said drainage element (2) is made of a non-woven filtering material which is arranged in a laminated manner between the filter membranes (3) respectively by means of an adhesive non-woven material (4). The invention also relates to a method for producing a filter element (1), a drainage element (2) made from a non-woven filtering material being laminated between two filter membranes (3). An adhesive non-woven material (4) is arranged between the drainage element (2) and each filter membrane (3), then lamination takes place due to the thermal effect under pressure.

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