EP 0898014 B1 20021009 - Process and apparatus for controlling or regulating the basis weight of a paper- or board web
Title (en)
Process and apparatus for controlling or regulating the basis weight of a paper- or board web
Title (de)
Vorrichtung und Verfahren zur Steuerung oder Regelung des Flächengewichts einer Papier- oder Kartonbahn
Title (fr)
Procédé et appareil pour la commande ou la régulation du poids de base d'une bande de papier ou carton
Publication
Application
Priority
DE 19736047 A 19970820
Abstract (en)
[origin: EP0898014A2] To control the weight of a fibre paper or cardboard web, at least one control circuit (I) sets the concentration of at least one pulp fed to the stock inlet and at least one further control circuit (II) sets the concentration of the pulp fed to the stock inlet. Also claimed is a process control operation, where the web weight is monitored directly or indirectly in front of the drying section, for a second control circuit.
IPC 1-7
IPC 8 full level
CPC (source: EP US)
D21F 1/08 (2013.01 - EP US); D21G 9/0027 (2013.01 - EP US); Y10S 162/10 (2013.01 - EP US); Y10S 162/11 (2013.01 - EP US)
Designated contracting state (EPC)
DE FI SE
DOCDB simple family (publication)
EP 0898014 A2 19990224; EP 0898014 A3 19990616; EP 0898014 B1 20021009; DE 19736047 A1 19990225; DE 59805886 D1 20021114; US 2002117282 A1 20020829; US 6368461 B1 20020409; US 6585860 B2 20030701
DOCDB simple family (application)
EP 98112701 A 19980709; DE 19736047 A 19970820; DE 59805886 T 19980709; US 13640098 A 19980819; US 7941302 A 20020222