EP0811435A2 - Préréglage pour laminoir réversible à froid - Google Patents

Préréglage pour laminoir réversible à froid Download PDF

Info

Publication number
EP0811435A2
EP0811435A2 EP97108853A EP97108853A EP0811435A2 EP 0811435 A2 EP0811435 A2 EP 0811435A2 EP 97108853 A EP97108853 A EP 97108853A EP 97108853 A EP97108853 A EP 97108853A EP 0811435 A2 EP0811435 A2 EP 0811435A2
Authority
EP
European Patent Office
Prior art keywords
rolling
data
strip
actuator
presetting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP97108853A
Other languages
German (de)
English (en)
Other versions
EP0811435A3 (fr
EP0811435B1 (fr
Inventor
Eberhard Dr. Neuschütz
Gert Mücke
Roger Lathe
Frank Gorgels
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BETR FORSCH INST ANGEW FORSCH
BFI VDEH Institut fuer Angewandte Forschung GmbH
Original Assignee
BETR FORSCH INST ANGEW FORSCH
BFI VDEH Institut fuer Angewandte Forschung GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7796361&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0811435(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by BETR FORSCH INST ANGEW FORSCH, BFI VDEH Institut fuer Angewandte Forschung GmbH filed Critical BETR FORSCH INST ANGEW FORSCH
Publication of EP0811435A2 publication Critical patent/EP0811435A2/fr
Publication of EP0811435A3 publication Critical patent/EP0811435A3/fr
Application granted granted Critical
Publication of EP0811435B1 publication Critical patent/EP0811435B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/16—Control of thickness, width, diameter or other transverse dimensions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/28—Control of flatness or profile during rolling of strip, sheets or plates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
    • B21B1/30—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a non-continuous process
    • B21B1/32—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a non-continuous process in reversing single stand mills, e.g. with intermediate storage reels for accumulating work
    • B21B1/36—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a non-continuous process in reversing single stand mills, e.g. with intermediate storage reels for accumulating work by cold-rolling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2265/00—Forming parameters
    • B21B2265/12—Rolling load or rolling pressure; roll force
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2265/00—Forming parameters
    • B21B2265/22—Pass schedule
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2271/00—Mill stand parameters
    • B21B2271/02—Roll gap, screw-down position, draft position

Definitions

  • the invention relates to a method for presetting the actuator positions of the strip flatness in a reversing stand or a rolling mill for the first pass of a new coil when cold-rolling strips, in particular made of stainless steel. It also relates to a method for presetting the regulated actuator positions of the strip flatness in a reversing stand or a rolling mill for restarting after a standstill, for example in the event of a new pass or a roll change.
  • German Offenlegungsschrift 44 21 005 describes a device for controlling the rolling, in particular the cold rolling of stainless steel, in which forming and plant-technical restrictions for the design of a smooth operation and a perfect rolling stock based on rolling measurements are to be observed.
  • the roller system When the rolling force is specified, the roller system is adjusted with regard to a specific force to be exerted on the strip. On the other hand, when the actuator positions are specified, the roller system is adjusted with regard to a specific geometry of the roller gap.
  • the default size depends on the tape dimensions given at the start of the stitch, i.e. the tape thickness and width, the respective material and the decrease in cross-section.
  • the presetting of the reversing stand or the rolling train by the waltz can deviate considerably from operational requirements.
  • the invention is based on the problem of automating both the presetting of the flatness of the strip position required for a new coil and for a cold-rolled coil - after a roll standstill before the next stitch or when changing rolls.
  • the strip flatness presetting of the respective roll stand for the first pass of a new coil should be possible even without knowledge of the strip or thickness profile of the hot strip at the start of the pass.
  • the solution for a current coil is that, according to the invention, the corresponding actual data of the first pass of a reference coil selected from n previously rolled coils, the reference data of which are set-up, strip flatness and coil data, are used as actuator positions for the strip flatness.
  • the result in best agreement with the target data of the current coil and that in each case an actuator position formed from the data of the individual actual reference state plus an actuator change which is dependent on the difference between the data of the reference state and the target state is used.
  • n 1,2, ...
  • the current coil is rolled on the basis of the historical data record that has the greatest flatness similarity to the target condition.
  • the solution is that the actuator position for the strip flatness is used based on the corresponding actual data that existed immediately before the standstill, and that one from each Data of the individual actual reference state plus an actuator position formed on the difference between the data of the reference state and the target state is used. This makes it possible to take into account the strain hardening of the strip that inevitably occurs with each stitch, which has the same effect as if another material were rolled.
  • the actuators for the strip flatness can be automatically preset.
  • reference is made according to the invention to a reference state with actual data from or from the previous process.
  • n previously rolled coils are considered and the coil whose comparison is used Reference data come closest to the target data of the current coil.
  • the process data of the reference coil for the strip flatness can be, for example: rolling force, strip tension, inlet and outlet thickness, position of the flatness actuators and roll geometry.
  • the roll gap can also be adapted to an unknown strip profile. This is very advantageous because the strip should keep the profile it had when hot rolling; a profile change during cold rolling would lead to waves in the strip. If the strip thickness profile is known, however, it can also be taken into account when determining the actuator positions.
  • the invention relates to an automatic system for the unsteady rolling phase both in the case of a new coil and after a standstill.
  • the actual data from the start of the stitch of the last n rolled coils can be taken from a data collection divided into categories as reference data for the first stitch of a new coil.
  • the categories are, for example: quality, bandwidth and strip thickness.
  • the previously rolled coil is selected as the reference coil for the rolling of a new coil, the scaffold setting, strip flatness and material data of which best match the target condition of the new coil.
  • an actuator position formed from the sum of the individual actual reference state and an actuator position dependent on the difference between the reference state and the target state can be used.
  • the actuator change is calculated, which results from the data of the difference between the reference state and the target state.
  • the new actuator position results from the previous actuator position of the reference state plus a separately determined actuator change.
  • This can either be determined using a roll gap model or the influencing functions of the flatness actuators and the influence of the rolling force are determined in advance with a roll gap model.
  • this preliminary determination can also take place in combination with a process parameterization or solely through a process parameterization.
  • process parameterization the parameters of an empirical algorithm are determined by tests which are to be carried out on the framework used for the respective application.
  • the invention further relates to a method for presetting the strip thickness in a reversing stand or a rolling mill for a new coil or the next pass of a rolled-on coil when cold-rolling strips, in particular made of stainless steel.
  • This is based on the problem of automating the actuator positions of the strip thickness required at the start of each stitch.
  • the roll stand should be automatically set to a roll thickness that is exactly maintained during the steady state.
  • the strip thickness presetting of the respective roll stand for the first pass of a new coil should also be possible without knowing the strip or thickness profile of the hot strip that existed at the start of the pass.
  • the solution within the scope of the invention is preferably that the strip thickness is preset by specifying a rolling force or position which is adapted over a certain period of time from the actual data of reference states of the respective roll stand.
  • the strip thickness is preferably preset by specifying a predetermined rolling force or specifying a predetermined position.
  • the flow curves for determining the specification data should be adapted over a certain previous period from the current process data for the respective roll stand. It is thereby achieved that, even if the strip's thickness profile is still unknown, the strip thickness, which is also rolled in the stationary area, is automatically set practically immediately at the start of the stitch. Because of the automatic fall time consuming Start-up processes away, process disruptions such as belt breaks are practically excluded.
  • Table 1 differentiates the reference state for the various events, namely for rolling a new coil or for restarting after the rolling stand has come to a standstill.
  • the actual data from the start of the stitch of a coil of the same category, for example quality, bandwidth and strip thickness, which was selected from the last n rolled coils serve as reference data for the first stitch of the new coil.
  • the actual data that were generated immediately before the standstill on the same coil are used as reference data.
  • the reference state determined in this way (the individual values or examples of values are given in Table 1) together with the target state (the individual data are also given in Table 1) is fed to a computing algorithm which provides the actuator positions for the strip flatness.
  • the actuator positions according to the invention which result from the actuator position of the reference state plus the calculated actuator change, are determined according to the flow diagrams from Tables 2 and 3. According to Table 2, the calculation is carried out on-line using a roll gap model. The new actuator positions should be calculated iteratively. The iteration may be ended when the difference in the actuator positions of the current iteration step falls below a certain, predetermined limit value for the actuator positions of the previous step. This limit value is based on the position accuracy of the actuator.
  • Table 4 illustrates an execution diagram of the method for determining the rolling force or position to be specified in order to achieve the desired target run-out thickness taking into account a reference state.
  • the target condition is defined by: the infeed thickness of the belt, the target outlet thickness and the belt tension.
  • the values of the reference state - preferably on-line - are corrected via an influencing function depending on the measured values of the reference state, for example the rolling force / position, inlet thickness, outlet thickness and strip tension. The result is the specified rolling force or position, with which the strip is automatically rolled with every new stitch, even with the first stitch.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Metal Rolling (AREA)
EP97108853A 1996-06-07 1997-06-03 Préréglage pour laminoir réversible à froid Expired - Lifetime EP0811435B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19622825A DE19622825B4 (de) 1996-06-07 1996-06-07 Voreinstellung für Kaltwalzreversiergerüst
DE19622825 1996-06-07

Publications (3)

Publication Number Publication Date
EP0811435A2 true EP0811435A2 (fr) 1997-12-10
EP0811435A3 EP0811435A3 (fr) 1998-05-06
EP0811435B1 EP0811435B1 (fr) 2001-09-05

Family

ID=7796361

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97108853A Expired - Lifetime EP0811435B1 (fr) 1996-06-07 1997-06-03 Préréglage pour laminoir réversible à froid

Country Status (4)

Country Link
US (1) US5987948A (fr)
EP (1) EP0811435B1 (fr)
JP (1) JP3996976B2 (fr)
DE (1) DE19622825B4 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19851554A1 (de) * 1998-11-09 2000-05-18 Siemens Ag Verfahren und Einrichtung zur Voreinstellung einer Walzstraße
WO2002064276A1 (fr) * 2001-02-13 2002-08-22 Siemens Aktiengesellschaft Procede et dispositif pour preregler des grandeurs de processus d'un train de laminoir servant a laminer des feuillards metalliques
CN102688896A (zh) * 2012-05-16 2012-09-26 燕山大学 四辊冷连轧机组基于机理模型的虚拟凸度仪设定方法

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19831480C1 (de) * 1998-07-14 2000-01-13 Schloemann Siemag Ag Verfahren zum Voreinstellen von Kaltverformungsanlagen
DE19900428A1 (de) * 1999-01-08 2000-07-13 Sms Demag Ag Walzstraße zum Walzen von stabförmigem Walzgut, z. B. Stabstahl oder Draht
ATE255964T1 (de) * 1999-12-23 2003-12-15 Abb Ab Verfahren und vorrichtung zur planheitsregelung
US8707529B2 (en) * 2008-12-11 2014-04-29 The Material Works, Ltd. Method and apparatus for breaking scale from sheet metal with recoiler tension and rollers adapted to generate scale breaking wrap angles
EP2527052A1 (fr) * 2011-05-24 2012-11-28 Siemens Aktiengesellschaft Procédé de fonctionnement pour une voie de laminage
US20250108421A1 (en) * 2022-01-27 2025-04-03 Novelis Inc. System and method for controlling threading in a rolling mill

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57137014A (en) * 1981-02-17 1982-08-24 Sumitomo Metal Ind Ltd Controlling method for flatness of steel plate by variable crown roll
JPH0653283B2 (ja) * 1986-04-02 1994-07-20 株式会社日立製作所 圧延機における適応制御方法
US4745556A (en) * 1986-07-01 1988-05-17 T. Sendzimir, Inc. Rolling mill management system
NL8700776A (nl) * 1987-04-02 1988-11-01 Hoogovens Groep Bv Werkwijze voor het voorinstellen van een walserij en een besturingsinrichting geschikt daarvoor.
JPS6478612A (en) * 1987-09-21 1989-03-24 Kobe Steel Ltd Arithmetic unit for gap between rolls of multistage rolling mill
SU1547898A1 (ru) * 1988-06-07 1990-03-07 Киевский институт автоматики им.ХХУ съезда КПСС Способ автоматического управлени комплексом механических свойств прокатываемых стальных листов и система дл его осуществлени
US5054302A (en) * 1989-04-07 1991-10-08 Kawasaki Steel Corporation Hardness compensated thickness control method for wet skin-pass rolled sheet
DE4040360A1 (de) * 1990-12-17 1991-06-27 Siemens Ag Regelung eines mehrgeruestigen warm- und/oder kaltband-walzwerks
JPH05138220A (ja) * 1991-11-22 1993-06-01 Hitachi Ltd 連続圧延機の板有零調装置及び方法
JP2677964B2 (ja) * 1994-03-11 1997-11-17 川崎製鉄株式会社 圧延機の形状制御初期設定方法
US5680784A (en) * 1994-03-11 1997-10-28 Kawasaki Steel Corporation Method of controlling form of strip in rolling mill
DE4421005B4 (de) * 1994-06-18 2007-09-27 Betriebsforschungsinstitut VDEh - Institut für angewandte Forschung GmbH Vorrichtung zur Steuerung des Walzens
JPH0824927A (ja) * 1994-07-18 1996-01-30 Nisshin Steel Co Ltd 金属帯の圧延形状の自動制御方法および装置
US5609053A (en) * 1994-08-22 1997-03-11 Alcan Aluminum Corporation Constant reduction multi-stand hot rolling mill set-up method
DE19545262B4 (de) * 1995-11-25 2004-08-05 Alstom Power Conversion Gmbh Einrichtung zum Betrieb einer mehrgerüstigen Walzstraße

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19851554A1 (de) * 1998-11-09 2000-05-18 Siemens Ag Verfahren und Einrichtung zur Voreinstellung einer Walzstraße
DE19851554C2 (de) * 1998-11-09 2001-02-01 Siemens Ag Verfahren und Einrichtung zur Voreinstellung einer Walzstraße
WO2002064276A1 (fr) * 2001-02-13 2002-08-22 Siemens Aktiengesellschaft Procede et dispositif pour preregler des grandeurs de processus d'un train de laminoir servant a laminer des feuillards metalliques
US6691540B2 (en) 2001-02-13 2004-02-17 Siemens Aktiengesellschaft Method and apparatus for presetting process variables for a rolling train for rolling metal strips
CN102688896A (zh) * 2012-05-16 2012-09-26 燕山大学 四辊冷连轧机组基于机理模型的虚拟凸度仪设定方法

Also Published As

Publication number Publication date
EP0811435A3 (fr) 1998-05-06
JPH1052706A (ja) 1998-02-24
DE19622825B4 (de) 2005-03-31
JP3996976B2 (ja) 2007-10-24
EP0811435B1 (fr) 2001-09-05
DE19622825A1 (de) 1997-12-11
US5987948A (en) 1999-11-23

Similar Documents

Publication Publication Date Title
DE69102280T2 (de) Verfahren und anlage zum herstellen von direkt einer warmwalzstrasse erzeugter stahlbandcoils mit kaltwalzeigenschaften.
DE19522494C2 (de) Verfahren zum Walzen eines Metallbandes
DE2944035C2 (fr)
DE1427892B2 (de) Regeleinrichtung fuer ein kontinuierliches walzwerk
DE2950473C2 (fr)
DE60016999T2 (de) Verfahren und Vorrichtung zum Regeln der Bandform beim Bandwalzen
EP2418031A1 (fr) Procédé de fabrication d'une bande métallique à l'aide d'une installation de laminage par coulée, dispositif de commande et/ou de réglage pour une installation composite de laminage par coulée et installation composite de laminage par coulée
DE1527761C3 (de) Einrichtung für den betriebsmäßigen Ausgleich der Änderung der Balligkeit von Arbeitswalzen einer Walzenstraße
DE1427888B2 (de) Einrichtung zur Dickenverringerung von Bandmaterial
EP0811435B1 (fr) Préréglage pour laminoir réversible à froid
DE3303829C2 (fr)
EP0972581B1 (fr) Procédé de laminage pour produits en forme de barres, notamment d'acier en barres ou de fils
DE1923788A1 (de) Verfahren zur Konstanthaltung der Zugspannung des Walzgutes zwischen den Walzgeruesten
EP0003969A1 (fr) Procédé de laminage de bandes de métal et laminoir pour l'exécution du procédé
DE3026229C2 (fr)
WO1999024183A1 (fr) Procede et dispositif permettant de laminer une bande d'epaisseur variable
DE1126492B (de) Einrichtung zur Regelung der Banddicke in kontinuierlichen Warmwalzwerken
DE2263674A1 (de) Verfahren zur herstellung von bandfoermigem walzgut unter verwendung eines rechners
EP1069963B1 (fr) Procede et dispositif pour la production de segments de ressort a ruban cintres
EP4103339B1 (fr) Détermination de la sensibilité d'une grandeur cible d'une matière à laminer pour un paramètre de fonctionnement d'un train de laminage à chaud
EP1525061A1 (fr) Correction dynamique d'epaisseur
DE3637043A1 (de) Verfahren zum vorausbestimmten einhalten enger dickentoleranzen beim walzen von walzgut in warmbandstrassen
DE1958162A1 (de) Verfahren zur Vorausregelung eines Tandemwalzwerkes
EP0272204B1 (fr) Procédé de réglage d'épaisseur de paroi de tube
DE19644131C2 (de) Verfahren zum Optimieren der Bandbreitenverteilung an den Enden eines eine Walzstraße in einem oder mehreren Stichen durchlaufenden Bandes

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): FR GB SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): FR GB SE

17P Request for examination filed

Effective date: 19981104

AKX Designation fees paid

Free format text: FR GB SE

RBV Designated contracting states (corrected)

Designated state(s): FR GB SE

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

17Q First examination report despatched

Effective date: 20001010

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): FR GB SE

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20011206

ET Fr: translation filed
PLBQ Unpublished change to opponent data

Free format text: ORIGINAL CODE: EPIDOS OPPO

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

PLBF Reply of patent proprietor to notice(s) of opposition

Free format text: ORIGINAL CODE: EPIDOS OBSO

26 Opposition filed

Opponent name: ABB PATENT GMBH

Effective date: 20020524

PLBF Reply of patent proprietor to notice(s) of opposition

Free format text: ORIGINAL CODE: EPIDOS OBSO

PLBO Opposition rejected

Free format text: ORIGINAL CODE: EPIDOS REJO

PLBN Opposition rejected

Free format text: ORIGINAL CODE: 0009273

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: OPPOSITION REJECTED

27O Opposition rejected

Effective date: 20030410

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20090623

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20090618

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20090623

Year of fee payment: 13

EUG Se: european patent has lapsed
GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20100603

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20110228

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100630

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100603

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100604