EP0778098A2 - Elektromagnetische Rühreinrichtung für das Stranggiessen - Google Patents

Elektromagnetische Rühreinrichtung für das Stranggiessen Download PDF

Info

Publication number
EP0778098A2
EP0778098A2 EP97100231A EP97100231A EP0778098A2 EP 0778098 A2 EP0778098 A2 EP 0778098A2 EP 97100231 A EP97100231 A EP 97100231A EP 97100231 A EP97100231 A EP 97100231A EP 0778098 A2 EP0778098 A2 EP 0778098A2
Authority
EP
European Patent Office
Prior art keywords
tube
ingot mold
inductor
unit
cooling circuit
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
EP97100231A
Other languages
English (en)
French (fr)
Other versions
EP0778098B1 (de
EP0778098A3 (de
Inventor
Norbert Kaell
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.)
SMS Siemag AG
Original Assignee
Paul Wurth SA
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=19731286&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0778098(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Paul Wurth SA filed Critical Paul Wurth SA
Publication of EP0778098A2 publication Critical patent/EP0778098A2/de
Publication of EP0778098A3 publication Critical patent/EP0778098A3/de
Application granted granted Critical
Publication of EP0778098B1 publication Critical patent/EP0778098B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/12—Accessories for subsequent treating or working cast stock in situ
    • B22D11/122—Accessories for subsequent treating or working cast stock in situ using magnetic fields
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/10—Supplying or treating molten metal
    • B22D11/11—Treating the molten metal
    • B22D11/114—Treating the molten metal by using agitating or vibrating means
    • B22D11/115—Treating the molten metal by using agitating or vibrating means by using magnetic fields

Definitions

  • the present invention relates to an ingot mold with an electromagnetic stirring device for a continuous casting installation comprising a vertical ingot mold tube receiving molten metal, as well as an electromagnetic inductor for generating a gyratory movement of the molten metal in the tube. ingot mold around the axis thereof.
  • a device of this kind is known from document EP-A-0093068.
  • the open or free jet casting process simply consists in letting the liquid metal flow into the ingot mold tube through a calibrated nozzle at a more or less constant flow rate.
  • the level of the steel meniscus in the ingot mold is controlled by adapting the extraction speed as a function of the extraction and according to the indication of a level measurement installation based on a radioactive principle. This process is mainly used for the casting of medium quality steel billets, since the casting is carried out in contact with air.
  • an air-protected casting process is used, which is casting with submerged nozzles and powders.
  • the liquid steel is introduced into the ingot mold tube through a nozzle which plunges into the liquid metal which is in the ingot mold tube. Contact with air and oxygen is prevented by a layer of powder covering the surface of the metal at the pouring meniscus.
  • the casting takes place at a constant extraction speed.
  • the level of the ingot mold steel is controlled by a buffer or a distributor drawer.
  • the major goal sought by the application of electromagnetic stirring in an ingot mold consists in improving the surface condition of the billets by eliminating the pitting and the slag inlays.
  • the rotation speed of the ingot mold steel at the meniscus must be very high, hence the importance of the location of the inductor relative to the meniscus on the surface condition of the billets.
  • the inductor is located in the upper region of the ingot mold tube, while for casting with submerged nozzle, it is preferable that the inductor be placed at a lower level. This is the reason why, to take full advantage of the advantages offered by electromagnetic stirring in an ingot mold, it is preferable to have two different installations for implementing each of the two casting methods.
  • Document DE-A-3819493 describes an ingot mold with an electromagnetic stirring device which would allow the implementation of the two continuous casting methods.
  • This ingot mold includes an inductor which is adjusted like a piston in a compartment separate from the cooling box of the ingot mold, so as to be essentially displaceable in height by the coolant under pressure.
  • This ingot mold has so far never known industrial application.
  • Document GB-A-2021459 essentially relates to the correction of an offset between the central axis of the electromagnetic inductor and the casting axis, when working with interchangeable ingot mold tubes which have different cross sections.
  • it is proposed to equip the ingot mold with an inductor provided with its own cooling circuit and to fix it on a table supporting the ingot mold tube using two worm screws. These endless screws then make it possible to correct the arrangement of the inductor with respect to the casting axis by a horizontal displacement of the inductor on the casting table.
  • the problem underlying the present invention was to develop a simple ingot mold for the implementation of continuous casting in free jet and continuous casting with submerged nozzle.
  • the mold tube is surrounded by a first coaxial steel tube which, in turn, is disposed inside a second coaxial tube around which the inductor is mounted, while the annular spaces between the two tubes and between the mold tube and the first tube are crossed by a coolant.
  • the ingot mold which consists of the ingot mold tube, the inductor and the two tubes can be secured to a set of underlying rollers and can be dismantled as a unit with it.
  • Figures 1 and 2 show a mold 10 contained in a metal housing 12.
  • the mold 10 essentially comprises a vertical mold tube 14 containing liquid metal 16 which is poured from a not shown tundish.
  • the molten metal 16 gradually solidifies in this ingot mold tube and the metal blank is extracted there by passing through a set 18 of underlying guiding rollers and forming the metal blanks.
  • the set of rollers 18 is integral with the ingot mold 10 and can be dismantled in block with the latter.
  • the ingot mold tube 14 which generally consists of a copper tube, is surrounded by a coaxial steel tube 20 which forms with the ingot mold tube an annular cylindrical space 22 in which a coolant flows from the ingot mold tube 14.
  • Another cylindrical space 24 is delimited around the tube 20 by a second tube 26. This space 24 is closed downwards by an annular plate 28 fixed to the two tubes 20 and 26.
  • the cooling water enters the circuit at 30 and then into the annular gap 22 between the mold tube 14 and the tube 20.
  • This space is very thin to ensure rapid circulation and efficient cooling in the mold tube 14
  • the cooling water thus rises along the ingot mold tube to overflow through the top of the tube 20 and fill the annular space 24.
  • the cooling water leaves this space 24 by overflowing in a vertical pipe, not shown, arranged on along the wall inside the tube 26 and then through an outlet pipe.
  • the electromagnetic inductor 32 may consist of one or more inductors.
  • the inductor 32 is not fixed, but can be moved vertically between an elevated position according to FIG. 1 for free-jet casting and a lower position according to FIG. 2 for casting with submerged nozzle.
  • the means for moving the inductor 32 can be constituted by any suitable means known per se, for example three vertical threaded rods which support the inductor 32 and which can be rotated synchronously by a suitable motor.
  • the inductor 32 slides vertically in several, for example three guide rods 50, the vertical maneuver being carried out by a crane not shown.
  • the rods 50 are designed to position the inductor 32 in three different vertical positions defined by three upper radial perforations 52 and two lower notches 54.
  • the inductor 32 rests on the bottom of the mold 10 and can be keyed by the lower perforation 52. If the illustrated embodiment allows a third intermediate position, not shown, it is, of course, possible to n '' plan only two or plan more.
  • the inductor 32 can also include a separate cooling circuit, which is symbolized by the arrows 34 and 36 for the inlet and outlet of cooling water.
  • Another feature of the present invention is monitoring the level of the meniscus of the liquid metal in the ingot mold tube 14.
  • This monitoring is carried out using a radiation source 38, for example a cobalt source, arranged in the upper region of the annular space 24 and which is associated with a scintillometer 40 disposed on the opposite side of the ingot mold tube 14.
  • this radiation source 38 is located inside a cylindrical protective jacket 42, as shown in more detail and enlarged in FIG. 3.
  • This protective jacket 42 which may, for example, be made of lead, has a vertical slot 44 for the passage of the spokes.
  • This protective jacket 42 can be rotated around a vertical axis between an operating position shown in FIG.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)
  • General Induction Heating (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Furnace Details (AREA)
EP97100231A 1991-04-03 1992-02-21 Elektromagnetische Rühreinrichtung für das Stranggiessen Expired - Lifetime EP0778098B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
LU87914A LU87914A1 (fr) 1991-04-03 1991-04-03 Dispositif de brassage electromagnetique en lingotiere
LU87914 1991-04-03
EP92102888A EP0511465B2 (de) 1991-04-03 1992-02-21 Elektromagnetische Rühreinrichtung für das Stranggiessen

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP92102888.2 Division 1992-02-21
EP92102888A Division EP0511465B2 (de) 1991-04-03 1992-02-21 Elektromagnetische Rühreinrichtung für das Stranggiessen

Publications (3)

Publication Number Publication Date
EP0778098A2 true EP0778098A2 (de) 1997-06-11
EP0778098A3 EP0778098A3 (de) 1997-10-08
EP0778098B1 EP0778098B1 (de) 1998-09-30

Family

ID=19731286

Family Applications (2)

Application Number Title Priority Date Filing Date
EP92102888A Expired - Lifetime EP0511465B2 (de) 1991-04-03 1992-02-21 Elektromagnetische Rühreinrichtung für das Stranggiessen
EP97100231A Expired - Lifetime EP0778098B1 (de) 1991-04-03 1992-02-21 Elektromagnetische Rühreinrichtung für das Stranggiessen

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP92102888A Expired - Lifetime EP0511465B2 (de) 1991-04-03 1992-02-21 Elektromagnetische Rühreinrichtung für das Stranggiessen

Country Status (6)

Country Link
EP (2) EP0511465B2 (de)
AT (2) ATE171656T1 (de)
CA (1) CA2040830C (de)
DE (2) DE69227206T2 (de)
ES (2) ES2123347T3 (de)
LU (1) LU87914A1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009517218A (ja) * 2005-11-28 2009-04-30 ロテレツク 連続鋳造鋳型の高さにわたる電磁気撹拌モードの調整
CN109746404A (zh) * 2019-03-08 2019-05-14 石家庄爱迪尔电气有限公司 一种便于维护和加工的电磁搅拌铸造设备

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1288900B1 (it) * 1996-05-13 1998-09-25 Danieli Off Mecc Procedimento di colata continua con campo magnetico pulsante e relativo dispositivo
CN105964988B (zh) * 2016-03-19 2019-04-02 上海大学 移动型脉冲磁致振荡细化金属凝固组织方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2021459A (en) 1978-05-26 1979-12-05 Arbed Apparatus for the electrorotative casting of liquid metal
EP0093068A1 (de) 1982-04-22 1983-11-02 Paul Metz Verwendung von Kokillen-Ausgüssen
DE3819493A1 (de) 1988-06-08 1989-12-14 Voest Alpine Ind Anlagen Knueppel- bzw. vorblock-stranggiesskokille

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT185038B (de) * 1951-03-16 1956-03-26 Boehler & Co Ag Geb Verfahren zur Kühlung von Stranggußkokillen
US3153820A (en) * 1961-10-09 1964-10-27 Charles B Criner Apparatus for improving metal structure
DE1290303B (de) † 1964-08-22 1969-03-06 Schloemann Ag Vorrichtung zum Messen des Fuellstandes von Schmelze in einer Stranggiesskokille
JPS5719141A (en) * 1980-07-09 1982-02-01 Mitsubishi Heavy Ind Ltd Electromagnetic stirring device of continuous casting facility
FR2502996A1 (fr) * 1981-04-03 1982-10-08 Rotelec Sa Inducteur electromagnetique a champ tournant et equipement de lingotiere de coulee continue des metaux pour son utilisation
SE441502B (sv) * 1984-03-19 1985-10-14 Asea Ab Nivametare vid kokiller for strenggjutning
IT1181219B (it) * 1984-09-17 1987-09-23 Danieli Off Mecc Colata continua con agitatori polifunzionali
JPS6360056A (ja) † 1986-08-29 1988-03-16 Nisshin Steel Co Ltd Ｔｉ含有ステンレス鋼の連続鋳造方法および連続鋳造用鋳型
DE3730300A1 (de) † 1987-09-10 1989-03-23 Aeg Elotherm Gmbh Verfahren und vorrichtung zum elektromagnetischen ruehren von metallschmelzen in einer stranggiesskokille
JPH0351954U (de) † 1989-09-20 1991-05-21
GB9003196D0 (en) * 1990-02-13 1990-04-11 Davy Mckee Sheffield Continuous casting

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2021459A (en) 1978-05-26 1979-12-05 Arbed Apparatus for the electrorotative casting of liquid metal
EP0093068A1 (de) 1982-04-22 1983-11-02 Paul Metz Verwendung von Kokillen-Ausgüssen
DE3819493A1 (de) 1988-06-08 1989-12-14 Voest Alpine Ind Anlagen Knueppel- bzw. vorblock-stranggiesskokille

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009517218A (ja) * 2005-11-28 2009-04-30 ロテレツク 連続鋳造鋳型の高さにわたる電磁気撹拌モードの調整
US7938166B2 (en) * 2005-11-28 2011-05-10 Rotelec Adjusting the mode of electromagnetic stirring over the height of a continous casting mould
CN109746404A (zh) * 2019-03-08 2019-05-14 石家庄爱迪尔电气有限公司 一种便于维护和加工的电磁搅拌铸造设备
CN109746404B (zh) * 2019-03-08 2021-05-18 石家庄爱迪尔电气有限公司 一种便于维护和加工的电磁搅拌铸造设备

Also Published As

Publication number Publication date
EP0511465B1 (de) 1997-09-24
EP0778098B1 (de) 1998-09-30
EP0511465A3 (en) 1993-04-21
ATE158525T1 (de) 1997-10-15
CA2040830A1 (en) 1992-10-04
LU87914A1 (fr) 1992-11-16
ES2108054T3 (es) 1997-12-16
ES2108054T5 (es) 2004-07-01
ATE171656T1 (de) 1998-10-15
CA2040830C (en) 2003-08-19
DE69222348T2 (de) 1998-02-26
DE69227206D1 (de) 1998-11-05
EP0511465A2 (de) 1992-11-04
DE69227206T2 (de) 1999-04-15
DE69222348D1 (de) 1997-10-30
EP0778098A3 (de) 1997-10-08
DE69222348T3 (de) 2004-07-22
EP0511465B2 (de) 2003-12-03
ES2123347T3 (es) 1999-01-01

Similar Documents

Publication Publication Date Title
EP2099576B1 (de) Hohle strahldüse für das stranggiessen
US3646988A (en) Induction apparatus for continuous and semicontinuous casting
EP0778098B1 (de) Elektromagnetische Rühreinrichtung für das Stranggiessen
EP0005676A2 (de) Elektromagnetisches Rührverfahren beim Stranggiessen
US4324392A (en) Molten metal pouring device
LU84103A1 (fr) Systeme de decrassage automatique de busettes pendant la coulee de metaux
FR2632549A1 (fr) Lingotiere pour la coulee continue de billettes ou de blooms
PL126006B1 (en) Method of continuously casting pipes and mould therefor
CA1208878A (fr) Procede et installation de brassage electromagnetique de brames metalliques, notamment d'acier, coulees en continu
EP0767843A1 (de) Verfahren und vorrichtung zum beschicken eines elektroofens mit flüssigmetall
EP0242347A2 (de) Vorrichtung zum Giessen einer flüssig-festen Mischung
BE1004121A6 (fr) Dispositif pour la coulee d'un metal et procede d'utilisation de ce dispositif.
FR2516823A1 (fr) Procede de coulee electromagnetique ou a refroidissement direct
FR2464771A1 (fr) Procede et appareillage de coulee de metaux dans un moule fixe sur une cuve basculante
EP0241445A1 (de) Verfahren und Vorrichtung zum Kühlen von Strangguss aus Metall
EP0370934B1 (de) Verfahren und Einrichtung zum Versorgen einer Kokille mit geschmolzenem Metall in einer Stranggiesseinrichtung für dünne Vorblöcke
EP0236237B1 (de) Stranggussanlage für Metall
EP0122904A2 (de) Schieberverschluss für Behälter in der Stahl-Eisen Industrie oder Metallurgie
EP0393005A2 (de) Verfahren und Vorrichtung zur Kühlung eines stranggegossenen Metallerzeugnisses
EP0943380A1 (de) Verfahren und Vorrichtung zum Stranggiessen von Metallen
BE1000221A6 (fr) Dispositif pour la coulee d'un metal en phase pateuse.
BE1004046A3 (fr) Dispositif de dosage et de transport d'une masse pulverulente.
EP0452294B1 (de) Verfahren und Vorrichtung zum Stranggiessen eines Metalls
EP0206869B1 (de) Stranggiessanlage für dünnes Metallband
SU863159A1 (ru) Устройство дл защиты струи при непрерывной разливке металла

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

AC Divisional application: reference to earlier application

Ref document number: 511465

Country of ref document: EP

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH DE ES FR GB IT LI NL

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH DE ES FR GB IT LI NL

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

17P Request for examination filed

Effective date: 19971103

17Q First examination report despatched

Effective date: 19980108

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

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

AC Divisional application: reference to earlier application

Ref document number: 511465

Country of ref document: EP

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE ES FR GB IT LI NL

REF Corresponds to:

Ref document number: 171656

Country of ref document: AT

Date of ref document: 19981015

Kind code of ref document: T

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: AMMANN PATENTANWAELTE AG BERN

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

Effective date: 19981009

REF Corresponds to:

Ref document number: 69227206

Country of ref document: DE

Date of ref document: 19981105

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2123347

Country of ref document: ES

Kind code of ref document: T3

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

Ref country code: BE

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

Effective date: 19990228

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: CONCAST STANDARD AG

Effective date: 19990630

BERE Be: lapsed

Owner name: S.A. PAUL WURTH

Effective date: 19990228

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

Free format text: ORIGINAL CODE: EPIDOS OBSO

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

APAC Appeal dossier modified

Free format text: ORIGINAL CODE: EPIDOS NOAPO

APAE Appeal reference modified

Free format text: ORIGINAL CODE: EPIDOS REFNO

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

APAC Appeal dossier modified

Free format text: ORIGINAL CODE: EPIDOS NOAPO

APAC Appeal dossier modified

Free format text: ORIGINAL CODE: EPIDOS NOAPO

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: 20030506

NLR2 Nl: decision of opposition

Effective date: 20030506

APAH Appeal reference modified

Free format text: ORIGINAL CODE: EPIDOSCREFNO

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

REG Reference to a national code

Ref country code: CH

Ref legal event code: PUE

Owner name: SMS DEMAG AKTIENGESELLSCHAFT

Free format text: PAUL WURTH S.A.#32 RUE D'ALSACE#1122 LUXEMBOURG (LU) -TRANSFER TO- SMS DEMAG AKTIENGESELLSCHAFT#EDUARD-SCHLOEMANN-STRASSE 4#40237 DUESSELDORF (DE)

REG Reference to a national code

Ref country code: FR

Ref legal event code: TP

NLS Nl: assignments of ep-patents

Owner name: SMS DEMAG AG

Effective date: 20061005

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

Ref country code: IT

Payment date: 20110223

Year of fee payment: 20

Ref country code: NL

Payment date: 20110216

Year of fee payment: 20

Ref country code: FR

Payment date: 20110302

Year of fee payment: 20

Ref country code: CH

Payment date: 20110222

Year of fee payment: 20

Ref country code: AT

Payment date: 20110214

Year of fee payment: 20

Ref country code: DE

Payment date: 20110218

Year of fee payment: 20

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

Ref country code: GB

Payment date: 20110217

Year of fee payment: 20

Ref country code: ES

Payment date: 20110222

Year of fee payment: 20

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 69227206

Country of ref document: DE

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 69227206

Country of ref document: DE

REG Reference to a national code

Ref country code: NL

Ref legal event code: V4

Effective date: 20120221

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: GB

Ref legal event code: PE20

Expiry date: 20120220

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

Ref country code: DE

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20120222

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 EXPIRATION OF PROTECTION

Effective date: 20120220

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK07

Ref document number: 171656

Country of ref document: AT

Kind code of ref document: T

Effective date: 20120221

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20130722