Patent · US Active

Filter medium

US8393477B2 · kind B2 · utility

3Cited by

5References

9Claims

0Family size

Assignee

X-Flow B.V. · NL

Inventors

Michael Kamleiter · Stuttgart, DE
Wilhelm N. Gudernatsch · Stuttgart, DE

Key dates

Filing date	Sep 15, 2004
Grant date	Mar 12, 2013
Priority date	—
Expiry date	May 25, 2029

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01D69/1213
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A filter medium includes at least one filter membrane (10) having a fabric ply (12) as a supporting and protective layer. At least one additional filter membrane (14) with another fabric ply (16) as a supporting and protective layer is also provided. A third fabric ply (18) extends between both adjacent filter membranes (10, 14). Both adjacent filter membranes (10, 14) are connected together by the threads (26) of the other two plies (12, 16) which reach through to the third ply (18).

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