EP0780656B1 - Echangeur de chaleur - Google Patents

Echangeur de chaleur Download PDF

Info

Publication number
EP0780656B1
EP0780656B1 EP96119514A EP96119514A EP0780656B1 EP 0780656 B1 EP0780656 B1 EP 0780656B1 EP 96119514 A EP96119514 A EP 96119514A EP 96119514 A EP96119514 A EP 96119514A EP 0780656 B1 EP0780656 B1 EP 0780656B1
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
tube
tubes
protective
tube plate
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.)
Expired - Lifetime
Application number
EP96119514A
Other languages
German (de)
English (en)
Other versions
EP0780656A2 (fr
EP0780656A3 (fr
Inventor
Miroslan Dr.-Ing. Podhorsky
Wilhelm Dipl.-Ing. Bruckmann (Fh)
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.)
Balcke Duerr GmbH
Original Assignee
Balcke Duerr 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=7781383&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0780656(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Balcke Duerr GmbH filed Critical Balcke Duerr GmbH
Publication of EP0780656A2 publication Critical patent/EP0780656A2/fr
Publication of EP0780656A3 publication Critical patent/EP0780656A3/fr
Application granted granted Critical
Publication of EP0780656B1 publication Critical patent/EP0780656B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/06—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits having a single U-bend
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
    • F28F19/002—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using inserts or attachments
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
    • F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
    • F28F21/081—Heat exchange elements made from metals or metal alloys
    • F28F21/082—Heat exchange elements made from metals or metal alloys from steel or ferrous alloys
    • F28F21/083—Heat exchange elements made from metals or metal alloys from steel or ferrous alloys from stainless steel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/0229—Double end plates; Single end plates with hollow spaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/04—Arrangements for sealing elements into header boxes or end plates
    • F28F9/16—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling
    • F28F9/18—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling by welding
    • F28F9/185—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling by welding with additional preformed parts

Definitions

  • the invention relates in particular to the use of waste heat in the chemical industry Industry-specific heat exchangers with at least their ends in holes a tube plate pressure-tightly attached heat exchanger tubes made of ferritic Material in a heat exchanger housing through which a cooling medium flows are arranged, the at least in the high temperature range Heat exchanger tubes each have a protective tube made of insensitive to embrittlement Material, for example chrome nickel steel is arranged.
  • EP 0 042 028 shows a heat exchanger in which the heat exchanger tubes are welded on one side to a tube sheet, the tube opening with a aligned bore in the tube sheet.
  • the heat exchanger tubes are included made of a ferritic steel.
  • each tube sheet hole is coated made of nitride-resistant material.
  • nitride-resistant material According to one embodiment can be made of a nitride-resistant material Protective sleeve through the hole in the tube sheet through to the heat exchanger tube be introduced. Between the pipe bore and the wall of the The protective sleeve is left in a cavity filled with a heat insulating material.
  • DE 1 958 566 describes a heat exchanger for use in chemical processes is known in which the heat exchanger tubes in holes in a base plate are set. To avoid thermal stress is in the area the bottom plate inserted into each heat exchanger tube, wherein between the wall of the inner tube and the wall of the heat exchanger tube in the area of the tube sheet, a space filled with a thermal insulation material is left.
  • US 4,368,571 shows a method for repairing a damaged pipe in a steam generator of a nuclear power plant, being in the area of the damaged area introduced a repair sleeve and countered by hydraulic expansion the inner wall of the heat exchanger tube is pressed leak-tight.
  • the invention has for its object to protect the heat exchanger tubes made of ferritic material of such heat exchangers from embrittlement and the tube plate from thermal shock loads.
  • each protective tube is fastened by hydraulic expansion in the area of the tube plate in the heat exchanger tube and that in the inlet area of the protective tubes there is in each case an additional insert tube, provided on the outside with insulation, made of material which is insensitive to embrittlement, for example chromium-nickel steel is arranged, which is fixed outside of the tube plate by hydraulic expansion on the protective tube.
  • protective tubes made of brittle-insensitive material, For example, chrome nickel steel will diffuse the gas molecules heat-emitting medium in the ferritic material of the heat exchanger tubes prevented so that they are effectively protected against embrittlement.
  • By hydraulic expansion of the protective tubes in the area of the tube plate this in a particularly simple but effective manner in the respective heat exchanger tube attached.
  • To the tube plate of the heat exchanger during the on and Shutdown processes of the heat exchanger before thermal shock-like loads Protection is an additional one in the entrance area of the protective tubes, on his Insulated insert tube made of insensitive to embrittlement on the outside Material, such as chrome nickel steel, arranged outside the tube plate is fixed by hydraulic expansion on the protective tube.
  • the heat exchanger tubes can also be hydraulic in a manner known per se Widening can be fixed in the tube plate. This ensures reliable Attachment of the heat exchanger tubes in the tube plate without one According to a further feature of the invention, the front ends of the heat exchanger tubes with the pipe plate sealing weld seam with axial Pipe forces is loaded.
  • the protective tubes in the Hydraulic expansion area of the heat exchanger tubes expanded hydraulically, this expansion process of the heat exchanger tubes on the one hand and the Protection tubes, on the other hand, either simultaneously or in succession can be done.
  • the insulation of the insert tubes preferably has at least the thickness of the Pipe plate corresponding axial extension.
  • the protective tubes and the insert tubes protrude on the inflow side out of the tube plate and the heat exchanger tubes and are attached at their ends to an intermediate floor of an entry collector, preferably by welding. In this way, an additional backup can be made achieve the tube plate against an excessive temperature load.
  • the tube plate can be clad on the inflow side made of material that is insensitive to embrittlement, e.g. chrome nickel steel in order to apply hot gas directly to the tube plate Avoid embrittlement of the tube plate.
  • material that is insensitive to embrittlement e.g. chrome nickel steel
  • the heat exchanger shown only schematically in FIG. 1, for example used for waste heat in the chemical industry, comprises a gas line 1 from which the nitrogen-containing gas G h, for example 480 ° C., is fed to an inlet collector 2. From this inlet header 2, the hot gas G h enters heat exchanger tubes 3, which are U-shaped in the exemplary embodiment and are pressure-tightly fastened in a tube plate 4 with both ends.
  • the heat exchanger tubes 3 are surrounded by a housing 5 which is provided with connections (not shown in the drawing) for the supply and discharge of a medium which absorbs heat from the hot gas G h .
  • the upstream ends 3a of the heat exchanger tubes 3 protrude from the tube plate 4. They are fastened in a pressure-tight manner in a wall of the inlet header 2 to be regarded as an intermediate floor 2a to the tube plate 4, so that the hot gas G h enters the ends 3a of the heat exchanger tubes 3 from the inlet header 2.
  • the hot gas G h flows through the heat exchanger tubes 3 arranged in the housing 5, heat is extracted from the gas, so that in the selected exemplary embodiment it leaves the heat exchanger tubes 3 ending on the underside of the tube plate 4, for example at a temperature of 330 ° C.
  • This cooled gas G k is symbolized by an arrow in FIG. 1.
  • embrittlement favored by the high temperatures to prevent the heat exchanger tubes 3 made of ferritic material is, as can be seen from FIGS. 2 and 3, in the high temperature range of the heat exchanger tubes 3 a protective tube 6 is arranged in each heat exchanger tube 3, that is made of a material that is insensitive to embrittlement, for example chrome nickel steel consists.
  • This protective tube 6 is in the area of the tube plate 4 by hydraulic Widening in the respective heat exchanger tube 3 attached.
  • the heat exchanger tubes 3 by hydraulic Widening into corresponding annular recesses in the holes the tube plate 4 attached to this.
  • the resulting annular Recesses inside the heat exchanger tubes 3 were made for the hydraulic Widening the protective tubes 6 used.
  • the hydraulic expansion of the one hand Heat exchanger tubes 3 and on the other hand, the protective tubes 6 can be consecutive in time or take place simultaneously.
  • Protective tubes 6 made of material that is insensitive to embrittlement will Diffusion of gas molecules of the heat-emitting medium, in particular one nitrogenous gas in the ferritic material of the heat exchanger tubes 3 prevented, so that they are effectively protected against embrittlement.
  • the axial The length of the protective tubes 6 essentially depends on the temperature profile in axial direction of the heat exchanger tubes 3 and thus the intensity of the cooling the heat exchanger tubes 3. In the illustrated embodiment, the Cooling so intense that the protective tubes 6 with only a slight axial Extend beyond the tube plate 4 on the downstream side.
  • an additional, Insert tube 10 provided on its outside with insulation 9 arranged, which also consists of an embrittlement-insensitive material.
  • insulation 9 preferably extends at least over an axial length corresponding to the thickness of the tube plate 4.
  • the tube plate 4 is, as can be seen in FIGS. 2 and 3, a cladding on the inflow side 4a provided.
  • this is a with ferritic material weldable material, so that between plating 4a and the end face of each heat exchanger tube 3 a sealing weld 8 placed can be. Due to the definition of the heat exchanger tube 3 on the tube plate 4 by hydraulic expansion, this is particularly the better seal Serving sealing weld 8 relieved of axial pipe forces.
  • the protective tubes 6 protrude on the inflow side out of the tube plate 4.
  • This upstream ends 6a of the Protective tubes 6 are attached to an intermediate floor 2a, which is part according to FIG. 1 an entry collector 2 can be.
  • the attachment of the protective tube 6 to the intermediate floor 2a is pressure-tight in the embodiment according to FIG. 2 a weld seam 7.
  • Figure 2 shows a manufacturing stage before insertion of the additional tube 10 provided with the insulation 9 into the protective tube 6.
  • the tube plate 4 is on the inflow side provided with a cladding 4a between and the heat exchanger tube 3 a sealing weld 8 is placed in each case.
  • a sealing weld 8 is placed in each case.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Claims (7)

  1. Echangeur thermique pour l'exploitation des chaleurs perdues dans l'industrie chimique, avec à ses extrémités des tubes échangeurs (3) en matériau ferritique, fixés de manière étanche à la pression dans des perçages d'au moins une plaque tubulaire et disposés dans un boítier d'échangeur thermique (5) traversé par un fluide de refroidissement, un tube de protection (6) en matériau non fragile, par exemple en acier nickel-chrome étant placé au moins dans la région soumise à des hautes températures des tubes échangeurs (3),
       caractérisé en ce que chaque tube de protection (6) est fixé dans le tube échangeur par élargissement hydraulique dans la région de la plaque tubulaire (4), en ce que dans la zone d'admission des tubes d'admission (6), un tube d'insertion (10) supplémentaire, en matériau non fragile, par exemple en acier nickel-chrome, muni d'une isolation (9) sur sa face extérieure et fixé par élargissement hydraulique sur le tube de protection (6), à l'extérieur de la plaque tubulaire (4) est disposé dans la région d'admission des tubes de protection.
  2. Echangeur thermique selon la revendication 1, caractérisé en ce que l'isolation (9) dispose d'une extension axiale correspondant au mois à l'épaisseur de la plaque tubulaire (4).
  3. Echangeur thermique selon l'une quelconque des revendications 1 ou 2, caractérisé en ce que les extrémités frontales des tubes échangeurs (3) sont reliées à la plaque tubulaire (4) par un cordon de soudure étanche (8).
  4. Echangeur thermique selon au moins l'une des revendications 1 à 3, caractérisé en ce que les tubes échangeurs (3) sont fixés dans la plaque tubulaire (4) par élargissement thermique.
  5. Echangeur thermique selon au moins l'une des revendications 1 à 4, caractérisé en ce que les tubes de protection (6) sont élargis de manière hydraulique dans la région de l'élargissement hydraulique des tubes échangeurs (3).
  6. Echangeur thermique selon au moins l'une des revendications 1 à 5, caractérisé en ce que les tubes de protection (6) et les tubes d'insertion (10) saillissent de la plaque tubulaire (4) et des tubes échangeurs (3), côté admission et sont reliés par cette extrémité à un fond intermédiaire (2a) d'un collecteur d'entrée (2).
  7. Echangeur thermique selon au moins l'une des revendications 1 à 6, caractérisé en ce que la plaque tubulaire (4) est munie d'un placage (4a), côté admission.
EP96119514A 1995-12-23 1996-12-05 Echangeur de chaleur Expired - Lifetime EP0780656B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19548688A DE19548688C2 (de) 1995-12-23 1995-12-23 Wärmetauscher zum Kühlen von stickstoffhaltigem Gas hoher Temperatur
DE19548688 1995-12-23

Publications (3)

Publication Number Publication Date
EP0780656A2 EP0780656A2 (fr) 1997-06-25
EP0780656A3 EP0780656A3 (fr) 1998-11-18
EP0780656B1 true EP0780656B1 (fr) 2002-05-29

Family

ID=7781383

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96119514A Expired - Lifetime EP0780656B1 (fr) 1995-12-23 1996-12-05 Echangeur de chaleur

Country Status (3)

Country Link
EP (1) EP0780656B1 (fr)
JP (1) JPH09178393A (fr)
DE (2) DE19548688C2 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4600041B2 (ja) * 2004-12-29 2010-12-15 洋一 広瀬 冷却装置及びストリップキャスティング装置並びにネオジウム系焼結磁石用合金鋳造薄片の冷却方法
JP2009521660A (ja) 2005-12-21 2009-06-04 エクソンモービル リサーチ アンド エンジニアリング カンパニー ファウリングを抑制させるための耐食材料、改良された耐食性およびファウリング抵抗性を有する伝熱装置、およびファウリングを抑制させるための方法
US8201619B2 (en) 2005-12-21 2012-06-19 Exxonmobil Research & Engineering Company Corrosion resistant material for reduced fouling, a heat transfer component having reduced fouling and a method for reducing fouling in a refinery
US8349267B2 (en) 2007-10-05 2013-01-08 Exxonmobil Research And Engineering Company Crude oil pre-heat train with improved heat transfer
JP5868761B2 (ja) * 2012-03-29 2016-02-24 三菱重工業株式会社 拡管方法
EP2881691A1 (fr) 2013-12-09 2015-06-10 Balcke-Dürr GmbH Échangeur de chaleur avec une plaque tubulaire et un manchon inséré
CN105634836B (zh) 2014-10-27 2020-03-17 香港理工大学 信息处理方法及装置
DK3355022T3 (da) * 2017-01-31 2020-02-10 Alfa Laval Corp Ab Anordning og fremgangsmåde til beskyttelse af en syngas- kredsløbskedels rørplade
JP7319139B2 (ja) * 2019-08-26 2023-08-01 株式会社アルバック 配管構造体及び熱交換器

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1141239A (en) * 1967-03-16 1969-01-29 Charles B Maretzo Insert constructions for tubes of heat exchangers and condensers
US3592261A (en) * 1968-11-25 1971-07-13 Lummus Co Heat exchanger
GB1323885A (en) * 1970-01-21 1973-07-18 Clonsast Ltd Methods of making heat exchangers
DE3022480A1 (de) * 1980-06-14 1982-01-07 Uhde Gmbh, 4600 Dortmund Vorrichtung zum waermetausch zwischen einen nh (pfeil abwaerts)3(pfeil abwaerts) -konverter verlassendem kreislaufgas und wasser
US4368571A (en) * 1980-09-09 1983-01-18 Westinghouse Electric Corp. Sleeving method
US4505017A (en) * 1982-12-15 1985-03-19 Combustion Engineering, Inc. Method of installing a tube sleeve
DE3822808C2 (de) * 1988-07-06 1993-12-23 Balcke Duerr Ag Wärmetauscher mit zwischen zwei Rohrplatten angeordneten Wärmetauscherrohren

Also Published As

Publication number Publication date
DE19548688A1 (de) 1997-06-26
EP0780656A2 (fr) 1997-06-25
DE59609262D1 (de) 2002-07-04
EP0780656A3 (fr) 1998-11-18
JPH09178393A (ja) 1997-07-11
DE19548688C2 (de) 1999-04-08

Similar Documents

Publication Publication Date Title
EP0235277B1 (fr) Dispositif de combustion de constituants oxydables dans un gaz porteur a nettoyer
EP2881692B1 (fr) Refroidisseur d'air froid de turbines à gaz, centrale de turbines à gaz ou de turbines à gaz et à vapeur ainsi que procédé de refroidissement d'air froid
DE3022480C2 (fr)
DE2733611C2 (de) Transportleitung mit keramischer Innenisolierung zur Führung heißer Fluide
WO2003036214A1 (fr) Dispositif de transmission de chaleur
DE3343652A1 (de) Brennerflammrohr und verfahren zur herstellung desselben
EP0780656B1 (fr) Echangeur de chaleur
EP0171583B1 (fr) Système tubulaire de réaction d'un four de craquage à tubes
DE1601571A1 (de) Gekuehlte Trennfuge fuer das Flammrohr einer Gasturbinenbrennkammer
DE2044207A1 (de) 'Wärmeaustauscher
EP0328043B1 (fr) Echangeur
DE3701614C2 (de) Rohrwärmetauscher
DE3714671C2 (fr)
EP0994322B1 (fr) Echangeur de chaleur avec élément de connection
CH662634A5 (de) Mediumfuehrende leitung mit mindestens einer drosselvorrichtung.
DE10248312A1 (de) Wärmeflussmesseinrichtung für Druckrohr sowie Verfahren zum Messen eines Wärmeflusses durch Druckrohre
DE3822808C2 (de) Wärmetauscher mit zwischen zwei Rohrplatten angeordneten Wärmetauscherrohren
DE19959467B4 (de) Doppelrohrsicherheitswärmeübertrager
CH671619A5 (fr)
DE3820494C2 (de) Wärmetauscher
DE102019120096A1 (de) Rohrbündelwärmetauscher
DE4119178C1 (fr)
EP0070371A1 (fr) Echangeur de chaleur
DE3147512A1 (de) Waermetauscher mit u-rohren
DE2613317C3 (de) Bündelrohrwärmetauscher

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): BE DE FR GB IT NL

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): BE DE FR GB IT NL

17P Request for examination filed

Effective date: 19990410

17Q First examination report despatched

Effective date: 20000222

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

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): BE DE FR GB IT NL

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REF Corresponds to:

Ref document number: 59609262

Country of ref document: DE

Date of ref document: 20020704

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

Effective date: 20020720

ET Fr: translation filed
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: 20021205

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: 20021231

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: ALSTOM POWER ENERGY RECOVERY GMBH

Effective date: 20030227

BERE Be: lapsed

Owner name: *BALCKE-DURR G.M.B.H.

Effective date: 20021231

NLR1 Nl: opposition has been filed with the epo

Opponent name: ALSTOM POWER ENERGY RECOVERY GMBH

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

Ref country code: NL

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

Effective date: 20030701

GBPC Gb: european patent ceased through non-payment of renewal fee
PLBB Reply of patent proprietor to notice(s) of opposition received

Free format text: ORIGINAL CODE: EPIDOSNOBS3

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 20030701

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: 20030901

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PLCK Communication despatched that opposition was rejected

Free format text: ORIGINAL CODE: EPIDOSNREJ1

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: 20040617

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

Ref country code: IT

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

Effective date: 20051205

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

Ref country code: DE

Payment date: 20141230

Year of fee payment: 19

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 59609262

Country of ref document: DE

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 NON-PAYMENT OF DUE FEES

Effective date: 20160701