FILTER MODULE AND METHOD FOR ITS MANUFACTURE

Title:

FILTER MODULE AND METHOD FOR ITS MANUFACTURE

Document Type and Number:

WIPO Patent Application WO2003041829

Kind Code:

A3

Abstract:

A filter module is formed of filter material. In the filter material openings (25) are formed wherein the boundary surfaces of the openings (25) constitute the flow-through surfaces (6) . The filter module is a roll (27) of wound filter material. The openings (25) of the wound layers of the filter material form channels (26) angled relative to the winding axis (9), wherein one group thereof opens at the outer peripheral surface (28) of the roll (27) and the other group opens at the inner peripheral surface (29) of the roll (27) and wherein the channels (26) on the other end, respectively, are closed and wherein the channels (26), angled relative to the winding axis (9), are separated from one another by filter material, and wherein the inner area of the roll (27) has a central channel (3) arranged around a winding axis (9).

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Inventors:

DIEMER WOLFGANG (DE)
ZEILER MARTIN (DE)

Application Number:

PCT/EP2002/012544

Publication Date:

March 18, 2004

Filing Date:

November 09, 2002

Export Citation:

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Assignee:

PALL CORP (US)
DIEMER WOLFGANG (DE)
ZEILER MARTIN (DE)

International Classes:

B01D29/07; B01D29/21; B01D29/41; B01D39/14; B01D39/16; B01D39/20; (IPC1-7): B01D29/19

Domestic Patent References:

WO1998035740A1

1998-08-20

Foreign References:

FR873926A	1942-07-23
US3592769A	1971-07-13
DD144207A1	1980-10-08

Other References: