EP 0681057 B1 20020828 - Multi-layer headbox
Title (en)
Multi-layer headbox
Title (de)
Mehrschichten-Stoffauflauf
Title (fr)
Caisse de tête à plusieurs couches
Publication
Application
Priority
DE 4415053 A 19940429
Abstract (en)
[origin: EP0681057A2] A multilayer pulp dispenser, part of a machine producing multi-layer fibrous material, esp. paper web, comprises (1) at least two suspension current levels (I, II, III) each with suspension feed (1 1, 1.2, 1.3); (2) for each level a section with means in the current for micro-turbulence prodn., where the turbulence producers discharge into a nozzle (4) with machine-wide exit gap (8); and (3) at least one lamella (5, 5.1, 5.2) in the nozzle to maintain sepn. of neighbouring streams till they reach the exit. The lamella is formed as a pliable plate from the turbulence generators (3) region to the exit and has downstream end of max. thickness, S, 0.3 mm. <IMAGE>
IPC 1-7
IPC 8 full level
D21F 1/00 (2006.01); D21F 1/02 (2006.01); D21F 9/00 (2006.01)
CPC (source: EP US)
D21F 1/02 (2013.01 - EP US); D21F 1/028 (2013.01 - EP US); D21F 9/006 (2013.01 - EP US)
Designated contracting state (EPC)
AT CH DE ES FR GB IT LI SE
DOCDB simple family (publication)
EP 0681057 A2 19951108; EP 0681057 A3 19970416; EP 0681057 B1 20020828; AT E222971 T1 20020915; DE 59510338 D1 20021002; US 5849159 A 19981215
DOCDB simple family (application)
EP 95106390 A 19950427; AT 95106390 T 19950427; DE 59510338 T 19950427; US 80113297 A 19970227