Global Patent Index - EP 1075568 A1

EP 1075568 A1 2001-02-14 - MACHINE AND METHOD FOR PRODUCING A MULTILAYER WEB OF FIBROUS MATERIAL

Title (en)

MACHINE AND METHOD FOR PRODUCING A MULTILAYER WEB OF FIBROUS MATERIAL

Title (de)

MASCHINE UND VERFAHREN ZUR HERSTELLUNG EINER MEHRLAGIGEN FASERSTOFFBAHN

Title (fr)

MACHINE ET PROCEDE PERMETTANT DE FABRIQUER UNE BANDE DE TISSU FIBREUX MULTICOUCHE

Publication

EP 1075568 A1 (DE)

Application

EP 00910603 A

Priority

  • DE 19903943 A
  • EP 0000491 W

Abstract (en)

[origin: EP1024224A2] The additive supply unit (21) has a controller varying the volumetric flow and pressure of the additive. Preferred features: The supply unit has a connection for admixture of e.g. compressed air or steam. It is located near the start or the central region of the dewatering zone. Following the supply unit there is a balanced pressure, reduced-intensity dewatering section, e.g. its plate is non-perforated. The supply unit extends over the band width, divided into several sections, each individually controlled to discharge a fraction of the additive. They have moving cleansing units. Spacing between successive dewatering sections (16A, 16B) is variable. In the double band zone, against one porous band, there is a porous plate dewatering section, opposed to strip formations on the opposite side of the double band. Strip widths and/or their spacing vary. Plate and/or strips are pressed flexibly against the double band.

IPC 1-7 (main, further and additional classification)

D21F 11/04

IPC 8 full level (invention and additional information)

D21F 9/00 (2006.01); D21H 23/28 (2006.01)

CPC (invention and additional information)

D21F 9/003 (2013.01); D21H 23/28 (2013.01)

Citation (search report)

See references of WO 0044980A1

Designated contracting state (EPC)

AT DE FI IT SE

EPO simple patent family

EP 1024224 A2 20000802; EP 1024224 A3 20030716; EP 1024224 B1 20060802; AT 325232 T 20060615; AT 335101 T 20060815; AU 1249600 A 20000803; AU 3276400 A 20000818; DE 19903943 A1 20000803; DE 50012677 D1 20060608; DE 59913733 D1 20060914; EP 1075568 A1 20010214; EP 1075568 B1 20060503; NZ 502443 A 20000929; WO 0044980 A1 20000803

INPADOC legal status


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2007-04-11 [26N] NO OPPOSITION FILED

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2006-08-15 [REG SE TRGR] TRANSLATION OF GRANTED EP PATENT

2006-06-08 [REF] CORRESPONDS TO:

- Document: DE 50012677 P 20060608

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