Global Patent Index - EP 1161594 A1

EP 1161594 A1 2001-12-12 - PAPERMAKING HEADBOX

Title (en)

PAPERMAKING HEADBOX

Title (de)

STOFFAUFLAUF FÜR PAPIERMASCHINE

Title (fr)

CAISSE A PATE POUR LA FABRICATION DE PAPIER

Publication

EP 1161594 A1 (EN)

Application

EP 98902577 A

Priority

US 9800831 W

Abstract (en)

[origin: WO9936613A1] A papermaking machine has a stock manifold or headbox (10) which is tapered in the machine direction. Paper stock flows through a bank of tubes (18) from the stock manifold (16) to a slice (30) for injecting stock onto a forming wire (12). Each tube (24) in the tube bank (18) extends in a plane which is substantially parallel to the direction of motion of the paper web being formed. The tubes (24) are connected to the interior of the headbox manifold (16) along a stock supply wall (21). A plurality of supply conduits (139, 140, 141) are connected to the supply wall (21) and discharge fines such as chemicals and fillers into the manifold where they are immediately drawn, together with the stock, into adjacent tube ends which feed the stock and added fines to the slice for forming a paper web.

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

D21F 1/02

IPC 8 full level (invention and additional information)

D21F 1/02 (2006.01)

CPC (invention and additional information)

D21F 1/022 (2013.01); D21F 1/02 (2013.01); D21F 1/024 (2013.01); D21F 1/026 (2013.01)

Citation (search report)

See references of WO 9936613A1

Designated contracting state (EPC)

AT DE FI FR GB SE

EPO simple patent family

WO 9936613 A1 19990722; EP 1161594 A1 20011212; ID 23570 A 20000504; KR 100458847 B1 20041203

INPADOC legal status


2004-02-11 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20030801

2001-12-12 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20000831

2001-12-12 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT DE FI FR GB SE