Global Patent Index - EP 2211434 B1

EP 2211434 B1 20120215 - Method and device for corona treatment

Title (en)

Method and device for corona treatment

Title (de)

Verfahren und Vorrichtung zur Coronabehandlung

Title (fr)

Procédé et dispositif de traitement corona

Publication

EP 2211434 B1 20120215 (DE)

Application

EP 09179069 A 20091214

Priority

DE 102009006049 A 20090124

Abstract (en)

[origin: EP2211434A1] The method involves generating a corona discharge between electrodes (41, 51, 61) and a treatment roller (3 '), where the electrodes are arranged in a distance from surrounding of the treatment roller and spaced at a distance from each other around a circumferential direction. The electrodes are attached to voltage generators (43, 53, 63), and the voltage gradients are adjusted together at the electrodes. The voltage generators are controlled such that the voltage at the electrodes runs in equal phase to each other. An independent claim is also included for a device for corona treatment of a web like material.

IPC 8 full level

H01T 19/00 (2006.01)

CPC (source: EP)

H01T 19/00 (2013.01)

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR

DOCDB simple family (publication)

EP 2211434 A1 20100728; EP 2211434 B1 20120215; AT E545975 T1 20120315; CN 101786325 A 20100728; CN 101786325 B 20130918; DE 102009006049 A1 20100729

DOCDB simple family (application)

EP 09179069 A 20091214; AT 09179069 T 20091214; CN 201010100127 A 20100122; DE 102009006049 A 20090124