EP0776395B1 - Entwässerungselement in einer papiermaschine und verfahren zur herstellung eines solchen elements - Google Patents

Entwässerungselement in einer papiermaschine und verfahren zur herstellung eines solchen elements Download PDF

Info

Publication number
EP0776395B1
EP0776395B1 EP95943511A EP95943511A EP0776395B1 EP 0776395 B1 EP0776395 B1 EP 0776395B1 EP 95943511 A EP95943511 A EP 95943511A EP 95943511 A EP95943511 A EP 95943511A EP 0776395 B1 EP0776395 B1 EP 0776395B1
Authority
EP
European Patent Office
Prior art keywords
water removal
coat
continuous section
ceramic
removal element
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
EP95943511A
Other languages
English (en)
French (fr)
Other versions
EP0776395A1 (de
Inventor
Ari Telama
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.)
Valmet Technologies Oy
Original Assignee
Valmet Oy
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
Application filed by Valmet Oy filed Critical Valmet Oy
Publication of EP0776395A1 publication Critical patent/EP0776395A1/de
Application granted granted Critical
Publication of EP0776395B1 publication Critical patent/EP0776395B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00—Wet end of machines for making continuous webs of paper
    • D21F1/48—Suction apparatus
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00—Wet end of machines for making continuous webs of paper
    • D21F1/48—Suction apparatus
    • D21F1/483—Drainage foils and bars

Definitions

  • the invention relates to a fixed water removal element according to the preamble of claim 1 in a paper or board machine, said element being adapted to squeegee the wire or press felt of the machine from the side opposite to the sheet side of the wire/felt.
  • the invention also concerns a method of manufacturing such a water removal element.
  • water removal elements are subjected to high wearing stresses. As web speeds in modern paper machines are today in the range 1000 - 1500 m/min, a wire or felt travelling over the surface of the water removal element hurls past the element at a substantial velocity. The wear is increased by the fillers used in papermaking such as clay, talc and chalk, and by unwanted impurities of the papermaking process.
  • Fixed water removal elements are located at the wet end of the paper machine along its wire section and press section. Passing over the water removal element in the wire section is a wire woven from polymer monofilament, whereby the wire permits drainage of water from the paper sheet of high moisture content at this stage.
  • the water removal elements squeegee water off the wire or impose a vacuum or pressure shocks on the wire. In the press section water is removed from the felt by suction.
  • ceramic water removal elements are fabricated by assembling a long slice comprising adjoining ceramic pieces.
  • the length of the slice is determined by the web width of the machine.
  • the slice may be prepared from pieces machined to exact dimension that are mounted onto a precision pedestal, whereby a relatively smooth surface of the slice results.
  • a better end result is achieved by means of a structure in which the ceramic pieces are adjacently glued to each other and the ready-assembled slice is ground to correct shape, whereby no height differences remain between the pieces.
  • the most common materials for the pieces are aluminium oxide, silicon carbides and zirconium oxide.
  • a slice structure assembled from ceramic pieces has several shortcomings. Even if the water removal element is assembled from pieces, the pieces become relatively massive and thus rather vulnerable to thermal shocks. Temperature variations in a piece pressed against a web moving at a high speed may be substantially rapid at, e.g., loss of water film lubrication between the piece and the web. Such thermal shocks cause local fractures of the pieces and erosion of the piece surfaces which increases the wear rate of the wire massively. A slice assembled from pieces may become deformed due to wear or displacement of the pieces. Shape defects of the slices cause disturbances in water removal and can ruin the sheet being manufactured.
  • the greatest problems plaguing water removal elements made from ceramic pieces are associated with the inferior chemical and thermal resistance of adhesives used for joining the pieces.
  • the adhesive applied to the joint has insufficient resistance to the wide temperature variations and strong chemicals occurring in a paper machine.
  • the heaviest thermal loads occur when the wire travels without lubrication, that is, the machine is running dry. In this case the heat of friction can elevate the surface temperature of the ceramic piece in a few minutes by 120 - 200 °C. Since the thermal expansion coefficients of the ceramic material, the adhesive and the glass-fiber reinforced plastic body are different and the temperature profile of the slice is not homogeneous, substantial thermal stresses will develop in the slice that may detach the ceramic pieces from each other or totally separate them from the slice body.
  • Adhesives employed for bonding the ceramic pieces are not sufficiently resistant to the warm waters of the paper machine which are chiefly detached from the web being dried.
  • the degrading effect of the waters is amplified by the residual chemicals of the papermaking process contained in the waters.
  • Experimental tests on the strength of an adhesive-bonded joint indicated that already after 200 hours of aging the bond strength of almost all adhesives was lowered by tens of percent and in some adhesive grades even below half of their initial strength during this aging period. Because the strength impairment of the adhesive bond may result in the detachment of the ceramic pieces, such a drastic loss of bond strength is not acceptable.
  • the ceramic pieces may also rise above the slice surface which results in a so-called keyboard effect. Then, the elevated pieces mark the web with detrimental streaks. Hence, a water removal element requiring no adhesive bonds in its manufacture would be desirable.
  • the WO 93/00473 describes a water removal element having a thin wear plate of stainless steel.
  • the plate is coated by a ceramic coating and it is attached to a support structure by screws.
  • the plate is thin, whereby it has to be fixed to the support structure at very short intervals in order to prevent deformation of the plate. Also, the nuts for the screws are welded into the plate.
  • the drawback of this element is its complicated structure that is laborious to manufacture mainly because of above mentioned screw attachment.
  • the goal of the invention is accomplished by manufacturing the water removal element from a continuous section of metal having its one side covered with a ceramic coat applied by thermal spray-coating and its interior filled with a cast thermoset plastic compound.
  • the water removal element according to the invention is characterized by what is stated in the characterizing part of claim 1.
  • the invention offers significant benefits.
  • the invention is capable of entirely avoiding the use of an adhesive in the manufacture of a water removal element with a ceramic surface.
  • the vulnerability of the element to damage is reduced as no piece can become detached therefrom under use.
  • the thin, ceramic surface of the water removal element is most resistant to thermal shocks, this making it less sensitive to damage under rapid variations of the element temperature as compared with conventional ceramic elements.
  • spray-coating a continuous surface is obtained, whereby the keyboard effect is avoided which plagues water removal elements assembled from ceramic pieces.
  • the element has a relatively good inherent stiffness, because the metallic continuous section forms a shell structure with good resistance to stresses about the thermoset plastic compound core.
  • the bodies of the water removal elements can have a relatively lightweight construction and dispose of the need for a separate plastic body for ceramic pieces.
  • the element structure according to the invention is capable of minimizing the use of required expensive, stainless material to a very small amount, whereby a cost-efficient construction results.
  • the present type of water removal element may be used in applications where conventional embodiments made from ceramic pieces have been too costly.
  • the porous coat made by thermal coating is sealed, whereby good wear resistance and advantageous friction properties are obtained.
  • a complete water removal element comprises a U-shaped continuous section 1 having, e.g., a ceramic coat 5 applied onto the base part 3 of the U-shaped continuous section so as to form a wear-resistant surface, and a thermoset plastic compound core 6 cast into the continuous section 1.
  • a T-slot is machined into the thermoset plastic compound core 6, in the area between the legs of the U-shape, for mounting the water removal element.
  • the continuous section of the water removal element body is made from stainless steel having its cross section comprising a base part 3 of the U-shaped continuous section forming a plane to which the legs 2 of the continuous section are joined extending orthogonally upward from the base part 3.
  • the joining edge between the base part 3 and the legs 2 is provided with a chamfer 8, and the legs 2 end at inward bent flanges 4.
  • the entire interior of the continuous section is filled by a thermoset plastic compound core 6.
  • a water removal element with the above-described structure is manufactured in the following manner.
  • a ceramic coat 5 is applied onto the base part 3 of the continuous section 1 cut to a suitable length by means of thermal spray-coating.
  • the coat is sealed by impregnating the coat with a low-viscosity material having a high penetration capability into the coat.
  • the interior of the continuous section is filled by casting it full of a thermoset plastic compound which is cured, whereby it adheres to the interior walls of the continuous section 1 thus stiffening the continuous section 1.
  • the interior walls of the continuous section 1 may be sand-blasted or cleaned by any other suitable method.
  • a mounting slot 7 is machined into the cast compound for mounting the water removal element at the desired place in the paper machine by means of a support frame.
  • the outer surface of the coat is precision ground to correct shape.
  • the water removal element according to the invention may be made from a variety of different materials. While the optimal material for the base part continuous section 1 is stainless steel, also aluminium, brass, duplex steel and other corrosion-resistant materials may be employed.
  • the ceramic coat can be made from the following materials or mixtures thereof: Al 2 O 3 , Cr 2 O 3 , ZrO 3 , TiB 2 , SiO 2 , TiO 2 , WC and Cr 2 C 3 . However, when applied by thermal spray-coating, these materials remain more porous and softer than ceramic pieces made by sintering. Such a porous coat may wear down paper machine wires by the cutting action of the edges of the pores and the abrading action imposed on the wire by the filler particles and impurities lodging in the pores.
  • the pores may be sealed with a suitable auxiliary material.
  • Suitable materials are, e.g., organic resins and inorganic compounds. Of organic materials, the most suitable are low-viscosity epoxy resins which can be made to impregnate almost the entire porous volume of the coat. Moreover, such a sealing treatment improves the durability of the coat.
  • inorganic materials can be used, e.g., phosphate compounds which are impregnated into the coat from aluminium hydroxide and phosphoric acid solutions. These compounds are then converted into crystalline form by a heat treatment.
  • these compounds are capable of improving the wear resistance of the coat and their friction properties may further be enhanced by complementing the sealing treatment by auxiliary compounds with fluorinated resins.
  • auxiliary compounds with fluorinated resins The selection of suitable sealing compounds is wide and at least phenolic resins, fluorinated resins, epoxy resins, phosphate compounds and methacrylate resins are well suited for use as sealing compounds.
  • Thermal spray-coating can be used for applying coats on metallic surfaces only. Since the body of a water removal element must be of a non-rusting material, it would become excessively expensive with respect to competing solutions when made on, e.g. a solid stainless steel beam. According to the invention, this problem is overcome by manufacturing the body from a thin-walled continuous section which is stiffened by filling it with a thermoset plastic compound. In this manner the element can be made both stiff, lightweight and cost-efficient.
  • thermoset plastics are suitable for use as the fill material of the continuous section including epoxy resins, methacrylate resins, polyester resins, vinyl ester resins, phenolic resins and mixtures thereof.
  • the resin may be reinforced with, e.g., chopped glass fiber or ceramic particles.
  • the above-described type of water removal element is suited for use as a water removal element squeegeeing a wire or felt.
  • the invention may also be applied to other water removal elements of a paper machine that are in contact with a moving wire or felt.
  • the shape of the element must be modified to suit the application.
  • the shape of the continuous section can be widely varied and, for instance, the use of a continuous section with a closed perimeter is possible. Then, the outer surface of the section may be contoured so as to provide the mounting facility of the water removal element.

Landscapes

  • Paper (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Apparatuses And Processes For Manufacturing Resistors (AREA)
  • Laminated Bodies (AREA)

Claims (9)

  1. Entwässerungselement in einer Papier- oder Kartonmaschine, umfassend einen Körper (1, 6) und eine keramische Verschleißfläche (5),
    dadurch gekennzeichnet, daß
    der Körper (1, 6)
    ein längliches kontinuierliches Profilstück, das einen begrenzten Raum bildet, in welchen fliessendes Material (6) gegossen werden kann, und mindestens eine zur Anhaftung der Verschleißfläche (5) angeordnete Fläche, und
    eine hitzehärtbare Kunststoffmassenfüllung (6) zum zumindest teilweisen Auffüllen des begrenzten Raumes umfaßt, und
    die keramische Verschleißfläche (5) durch eine im Wärmesprüh-Streichverfahren auf eine Fläche des kontinuierlichen Profilstücks des Körpers (1) aufgetragene keramische Strichschicht (5) gebildet ist.
  2. Entwässerungselement gemäß Anspruch 1, dadurch gekennzeichnet, daß das die Gußform bildende kontinuierliche Profilstück (1) eine offene, vorzugsweise einer U-Form angenäherte Querschnittsform aufweist, deren Inneres zumindest teilweise mit einer hitzehärtbaren Kunststoffmasse ausgefüllt ist und an deren Basisteil (3) die keramische Strichschicht (5) anhaftet.
  3. Entwässerungselement gemäß einem der Ansprüche 1 und 2, gekennzeichnet durch eine in der hitzehärtbaren Kunststoffmassenfüllung (6) einbearbeitete Ausschlitzung (7) zum Anbringen des Elementes an einen Stützkörper.
  4. Entwässerungselement gemäß einem der Ansprüche 1 - 3, dadurch gekennzeichnet, daß die Strichschicht (5) aus einer der folgenden Verbindungen besteht: Al2O3, Cr2O3, ZrO3, TiB2, SiO2, TiO2, WC und Cr2C3, oder aus einer Mischung derselben.
  5. Entwässerungselement gemäß einem der Ansprüche 1 - 4, dadurch gekennzeichnet, daß die Strichschicht (5) durch Impregnieren mit z.B. eines aus der Gruppe der folgenden Stoffe ausgewählten Stoffes abgedichtet ist: Phenolharze, Fluorharze, Epoxydharze, Phosphatverbindungen und Methacrylharze.
  6. Entwässerunselement gemäß einem der Ansprüche 1 - 5, dadurch gekennzeichnet, daß das Füllmittel des kontinuierlichen Profilstücks (1) aus einer der folgenden Gruppen von Stoffen ausgewählt ist: Epoxydharze, Methacrylharze, Polyesterharze, Vinylesterharze und Phenolharze.
  7. Verfahren zur Herstellung eines Entwässerungselementes, dadurch gekennzeichnet, daß das Verfahren mindestens die folgenden Schritte umfaßt:
    Bereitstellen eines Körpers umfassend ein längliches kontinuierliches Profilstück, das einen begrenzten Raum bildet,
    Auftragen einer keramischen Strichschicht (5) auf mindestens eine Fläche des kontinuierlichen Profilstücks (1) durch Wärmesprüh-Streichverfahren, und
    zumindest teilweises Auffüllen des Inneren des kontinuierlichen Profilstücks (1) mit einer hitzehärtbaren Kunststoffmassenfüllung (6).
  8. Verfahren gemäß Anspruch 7, dadurch gekennzeichnet, daß die keramische Strichschicht (5) durch Impregnieren mit einem Dichtungsmaterial abgedichtet wird.
  9. Verfahren gemäß Anspruch 7 oder 8, dadurch gekennzeichnet, daß nach dem Erhärten der Kunststoffmasse eine Montierungsausschlitzung (7) in der hitzehärtbaren Kunststoffmassenfüllung (6) einbearbeitet wird.
EP95943511A 1994-08-17 1995-08-03 Entwässerungselement in einer papiermaschine und verfahren zur herstellung eines solchen elements Expired - Lifetime EP0776395B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FI943777A FI943777L (fi) 1994-08-17 1994-08-17 Paperikoneen vedenpoistoelin ja menetelmä sen valmistamiseksi
FI943777 1994-08-17
PCT/FI1995/000413 WO1996005370A1 (en) 1994-08-17 1995-08-03 Water removal element in a paper machine and method of manufacturing such an element

Publications (2)

Publication Number Publication Date
EP0776395A1 EP0776395A1 (de) 1997-06-04
EP0776395B1 true EP0776395B1 (de) 2000-02-02

Family

ID=8541206

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95943511A Expired - Lifetime EP0776395B1 (de) 1994-08-17 1995-08-03 Entwässerungselement in einer papiermaschine und verfahren zur herstellung eines solchen elements

Country Status (10)

Country Link
EP (1) EP0776395B1 (de)
JP (1) JPH10504357A (de)
KR (1) KR100253986B1 (de)
AT (1) ATE189494T1 (de)
AU (1) AU3079695A (de)
CA (1) CA2196093C (de)
DE (1) DE69514925T2 (de)
FI (1) FI943777L (de)
NO (1) NO309685B1 (de)
WO (1) WO1996005370A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013116397A1 (en) * 2012-01-30 2013-08-08 Paperchine Inc. A cover device for a drainage apparatus for a papermaking machine

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6982116B1 (en) 2000-02-18 2006-01-03 Praxair S.T. Technology, Inc. Coatings on fiber reinforced composites
ATE354695T1 (de) * 2001-05-15 2007-03-15 Voith Patent Gmbh Maschine zur herstellung einer faserstoffbahn aus einer faserstoffsuspension, verfahren zur überwachung eines entwässerungselements einer papiermaschine und papiermaschine mit einem system zur überwachung eines entwässerungselements
DE10130323A1 (de) * 2001-06-22 2003-01-02 Voith Paper Patent Gmbh Verschleisskörper in Schichtverbundbauweise, insbesondere in einer Papier- oder Kartonmaschine, Verfahren zu seiner Herstellung und seine Verwendung
FI110439B (fi) 2001-11-21 2003-01-31 Metso Paper Inc Menetelmä paperi-tai kartonkikoneen komposiittirunkoisen vedenpoistoelimen valmistamiseksi
US7419704B2 (en) 2005-08-18 2008-09-02 Praxair S. T. Technology, Inc. Coatings on fiber reinforced composites
FI118211B (fi) * 2006-05-19 2007-08-31 Metso Paper Inc Staattinen vedenpoistoelin rainanmuodostuskonetta varten sekä menetelmä rainanmuodostuskonetta varten olevan staattisen vedenpoistoelimen pinnoittamiseksi
EP2809842B1 (de) 2012-01-30 2017-03-15 Paperchine Inc. Abdeckungsvorrichtung einer drainagevorrichtung für eine papiermaschine
DE102012218961A1 (de) * 2012-10-17 2014-04-30 Sgl Carbon Se Stationäres Entwässerungselement für eine Maschine zur Herstellung einer Faserstoffbahn und dazugehöriges Verfahren
CN108589377A (zh) * 2018-04-21 2018-09-28 窦常平 一种造纸快速脱水装置
AT526435B1 (de) * 2023-01-26 2024-03-15 Andritz Ag Maschf Entwaesserungselement zur entwaesserung einer faserstoffbahn

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE470100B (sv) * 1991-06-20 1993-11-08 Sjoedin Sven Eric Avvattningslist för virapartiet vid en pappersmaskin

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013116397A1 (en) * 2012-01-30 2013-08-08 Paperchine Inc. A cover device for a drainage apparatus for a papermaking machine

Also Published As

Publication number Publication date
AU3079695A (en) 1996-03-07
NO970679D0 (no) 1997-02-14
DE69514925T2 (de) 2000-10-05
FI943777A7 (fi) 1996-02-18
JPH10504357A (ja) 1998-04-28
NO970679L (no) 1997-02-14
CA2196093C (en) 2007-01-09
WO1996005370A1 (en) 1996-02-22
CA2196093A1 (en) 1996-02-22
KR100253986B1 (ko) 2000-04-15
DE69514925D1 (de) 2000-03-09
NO309685B1 (no) 2001-03-12
ATE189494T1 (de) 2000-02-15
FI943777L (fi) 1996-02-18
EP0776395A1 (de) 1997-06-04
KR970704936A (ko) 1997-09-06
FI943777A0 (fi) 1994-08-17

Similar Documents

Publication Publication Date Title
CA2196093C (en) Water removal element in a paper machine and method of manufacturing such an element
US3928125A (en) Water extraction apparatus for papermaking machine
US4752519A (en) Papermakers felt with a resin matrix surface
US20130139988A1 (en) Planar Elements for Use in Papermaking Machines
CA1170093A (en) Dehydrating blade for paper machine
JPH11503087A (ja) 被覆ロールおよびその製造方法
US8070915B2 (en) Static dewatering element for a web forming machine and a method for covering a static dewatering element designed for a web forming machine
EP1320643B1 (de) Trägerleiste für eine rakelvorrichtung
US6363601B1 (en) Process for the production of fittings and of a machine for the mechanical processing of suspended fibrous material as well as fittings and a machine produced according to the process
US3975568A (en) Low-friction, wear-resistant material and process for making the same
SU1716040A1 (ru) Способ устройства пола
CN1387593A (zh) 对纤维材料悬浮体进行机加工的配件的制造方法
WO1997015719A1 (en) Method for the manufacture of a roll for use in the production of paper, roll for use in the production of paper, and coating for a roll for use in the production of paper
US5020983A (en) Divisible slip-casting molds
CN120646216A (zh) 边缘非对称连接的有机层合风挡透明件
CN1155307A (zh) 造纸机中的脱水元件及其制造方法
EP0394996B1 (de) Lichtabschirmblatt
EP1316640A2 (de) Entwässerungselement mit einem Verbundkörper für Papier oder Pappemaschinen und Verfahren zur Herstellung eines Entwässerungselementes mit einem Verbundkörper für Papier oder Pappemaschinen
US5820734A (en) Trailing element for a headbox
US6521095B1 (en) Composite vane hinge in a headbox
DE2634794A1 (de) Verschleissfestes bauteil fuer papiermaschinen und verfahren zum herstellen solcher bauteile
JPS5870793A (ja) 抄紙機用複合ブレ−ド
JP2002234755A (ja) ガラス繊維基材用表面処理剤、ガラス繊維基材、プリプレグ、およびガラス繊維強化熱硬化性樹脂成形物
RU2263732C2 (ru) Декоративная бумага и способ пропитки декоративной бумаги
JP2520477Y2 (ja) 抄紙用ドライヤーカンバス

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

17P Request for examination filed

Effective date: 19970116

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT CH DE FR GB IT LI SE

17Q First examination report despatched

Effective date: 19980923

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): AT CH DE FR GB IT LI SE

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

Ref country code: LI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20000202

Ref country code: CH

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20000202

REF Corresponds to:

Ref document number: 189494

Country of ref document: AT

Date of ref document: 20000215

Kind code of ref document: T

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REF Corresponds to:

Ref document number: 69514925

Country of ref document: DE

Date of ref document: 20000309

ITF It: translation for a ep patent filed
ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

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

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

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

Ref country code: FR

Payment date: 20060817

Year of fee payment: 12

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

Ref country code: GB

Payment date: 20060824

Year of fee payment: 12

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

Ref country code: IT

Payment date: 20060831

Year of fee payment: 12

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

Ref country code: SE

Payment date: 20060814

Year of fee payment: 12

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

Effective date: 20070803

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: 20070804

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20080430

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: 20070831

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

Ref country code: DE

Payment date: 20080822

Year of fee payment: 14

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: 20070803

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

Ref country code: AT

Payment date: 20080814

Year of fee payment: 14

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: 20070803

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

Ref country code: AT

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

Effective date: 20090803

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: 20100302