EP0995512B1 - Méthode et dispositif pour étancher un profilé creux ou similaire pendant le formage à haute pression - Google Patents

Méthode et dispositif pour étancher un profilé creux ou similaire pendant le formage à haute pression Download PDF

Info

Publication number
EP0995512B1
EP0995512B1 EP99810889A EP99810889A EP0995512B1 EP 0995512 B1 EP0995512 B1 EP 0995512B1 EP 99810889 A EP99810889 A EP 99810889A EP 99810889 A EP99810889 A EP 99810889A EP 0995512 B1 EP0995512 B1 EP 0995512B1
Authority
EP
European Patent Office
Prior art keywords
sealing element
chamber
profile
die
sealing
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
EP99810889A
Other languages
German (de)
English (en)
Other versions
EP0995512A2 (fr
EP0995512A3 (fr
Inventor
Jörg Hein
Aslan Göger
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.)
3A Composites International AG
Original Assignee
Alcan Technology and Management Ltd
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
Priority claimed from DE19909949A external-priority patent/DE19909949B4/de
Application filed by Alcan Technology and Management Ltd filed Critical Alcan Technology and Management Ltd
Publication of EP0995512A2 publication Critical patent/EP0995512A2/fr
Publication of EP0995512A3 publication Critical patent/EP0995512A3/fr
Application granted granted Critical
Publication of EP0995512B1 publication Critical patent/EP0995512B1/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
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
    • B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
    • B21D26/033—Deforming tubular bodies
    • B21D26/045—Closing or sealing means

Definitions

  • the invention relates to a method and an apparatus for forming a hollow profile or the like.
  • Workpiece by means of an internal high pressure generated by a flowable active medium in the sealed profile space of the hollow profile, whereby at least one sealing element from the active medium a receiving space of a stamp-like tool part is guided radially outwards.
  • US 3,625,040 (closest prior art) describes an apparatus and a method for forming tubular blanks with high pressure, with end Plug into the blank, widening its diameter, be driven in.
  • Sealants can be attached to the plugs Form of a sealing ring made of elastomeric material his.
  • the pressure generating fluid presses both the sealing ring on the inner wall of the blank to be deformed as well as the Blank for deformation on the forming die.
  • the pressure in the feed lines for the seals is the same, like the pressure inside the blank.
  • DE 35 32 499 C1 describes a device for hydraulic Widening a pipe section by means of a Tube insertable cone-like cylindrical probe that by means of at least two spaced apart Sealing rings with the pipe section to be expanded Annulus forms, which is filled with pressure medium for expansion becomes; the two sealing rings are each in an annular shape Receiving groove U-shaped cross section arranged in the probe and have in the initial state when inserting the Probe into the tube at most the outside diameter of the Corresponding outer diameter. Before the expansion process begins they are used to seal the annular gap radial pressure between the probe and the pipe, the grooves through a to the pressure medium supply connected connecting line supplied becomes.
  • the pressure medium supply to the annulus occurs exclusively over at least one of the grooves and will controlled by a sealing ring serving as a valve body, the opening between the receiving groove and the annular space closes until it expands by elastic has achieved its sealing effect. That groove is ) in its border adjacent to the annular space with at least one bevelled incision. If the pressure in the Annulus between the two seals increases, begins the pipe wall widen in this area.
  • the profile space covering tool part added and the sealing element to one between the hollow profile and the one attached to it stamp-like tool part created. It can the active medium from the space for the sealing element in the Profile space can be initiated.
  • an insert between serves here Pressure line mouth and sealing element as an additional Wear protection. This deposit must consist of one wear-resistant material and can be loose or with the Sealing element to be firmly connected.
  • the sealing element can axially and / or radially biased.
  • stamp-like tool part radial shoulder surface as a stop for a front edge of the designed as a single or multi-chamber profile has and on the circumference of an insertable in the profile space Stamp paragraph at least one annular groove for the sealing element is provided, which is to the longitudinal axis of the stamp towards at least one feed space for the active medium spanned and can be lifted off from the feed space by this; the stamp heel that can be inserted into the profile space is to the radially protruding shoulder surface added, which with a joint between the abutting front edge of the hollow profile limited to which this was designed as a sealing ring Allows the sealing element to be applied through the active medium.
  • the Ring or sealing groove another groove as a feed space for the active medium by at least one in the stamp add running channel to a source for the active medium is; if necessary, the further groove is an inner groove molded into the deepest of the ring or sealing groove and the latter is assigned radially.
  • the annular groove is as Shoulder groove shaped with an undercut Cross-sectional part and one as an open contact surface for the Sealing element trained section, above all then when the stamp paragraph is a separate part of the approach Stamp is.
  • the annular sealing element is therefore on a Paragraph or neck of the stamp in the ring groove that also extend axially parallel over that shoulder surface can.
  • the active medium flows into the Inner groove under the sealing element and expands it, until it lies down in front of that joint. Now flows in one configuration the active medium over the inner edge of the ring or Sealing groove - or through holes - in the workpiece on.
  • the holes can be arranged or the inner edge can be shaped so that the active medium only in the Workpiece or profile space flows when the sealing element the joint lies at these critical points.
  • sealing ring a band-like inner section with about this in Rib shaped center of cross section.
  • Rib shaped center of cross section By this stipulation a cross section is created which corresponds to that of a hat.
  • the central rib of this sealing ring is in Installation position on the one hand from a section of the stamp approach and on the other hand from an annular rib of the head part flanked.
  • the elastic seal adapts during calibration the changing shape of the hollow profile during the forming or the workpiece. Will the pressure in the workpiece again dismantled, the seal returns to its original position; The stamp and seal can be smoothly removed from the Workpiece are extended.
  • the end edge 14 of the hollow profile 10 has to strike the stamp 16 in a sealed manner.
  • the stamp 16 is provided with a radial shoulder surface 18 of an outer diameter d, to which a cylindrical stamp shoulder 20 of a smaller diameter d 1 is connected.
  • the height of the circumferential surface 22 of the cylindrical stamp shoulder 20 parallel to the longitudinal axis A of the stamp 16 is denoted by h in FIG. 1.
  • annular groove 24 in the peripheral surface 22 thereof molded to accommodate a sealing ring 26.
  • the annular groove 24 molded and the cross section of the Annular groove 24 of width b stepped inner groove 25 on both sides smaller width e. From this go - in the illustrated Embodiment six - radial channels 28, the other at 29 in a central recess 30 of the stamp 16 mouth.
  • the cross section of this cylindrical in itself Recess 30 tapers near the inner die or Stamp face 17 in an area 32 conically an axial or outflow channel 34.
  • an axial channel 34 usable pressure valve which in the embodiment of FIG. 3rd is indicated at 38. This is set so that it opens at the pressure under which the sealing ring 26 of the sealing edge abuts, and so the inlet of a larger volume flow or the lower loss inlet of the Active medium in the profile space 12 allows.
  • the Sealing ring 26 made of elastic material 26 which is changing Shape of the hollow profile 10. In this the Relieved of pressure, the sealing ring 26 goes into its initial position back into the annular groove 24 so that the sealing ring 26 with the stamp 16 again smoothly out of the profile space 12 can be extended.
  • a sealing ring 40 is inserted, which has a band-like inner section 41, from the cross-sectional center of which a rib 44 chamfered at its edges 42 is formed; a narrow edge area of the inner portion 41 of the sealing ring 40 is inserted on the one hand into the undercut part of the shoulder groove 24 a and on the other hand overlapped by an axial annular rib 46 of the head part 19.
  • the installation or addition of the schematically illustrated throttle valve 38 ensures that when pressure builds up in profile 10, pressure is first generated at sealing ring 40 before the internal pressure in profile 10 is built up; the response of the seal is guaranteed.
  • Fig. 5 also shows a two-part stamp 16 b from a head part 19 b and a separate cylindrical stamp extension 20 b , which is inserted into an insert space 48 of the head part 19 b .
  • the annular groove 24 of rectangular cross section receives the correspondingly designed sealing ring 26, which is partially covered by the side surface 49 of an annular edge 50 surrounding the insert space 48; the latter offers that shoulder surface 18.
  • the shape of the stamp 16 c corresponds approximately to that of the stamp 16 of FIG. 2, although the sealing ring 26 c rests on the peripheral surface 22, which is formed by an annular groove 24 c formed in the shoulder surface 18 parallel to the axis via the shoulder surface 18 is extended.
  • the sealing ring 26 c at the other end has a shoulder indentation 52 arranged on its outer edge, into which an edge rib 54 of a stamp cover 56 engages. The latter is screwed at 58 to the cylindrical stamp approach 20 c .
  • a punch 16 d is presented with an axially continuous filling line 60 for the hollow profile 10 and a separate eccentric pressure line 62 which connects to the inner groove 25 with a radial section 64; this pressure line 62/64 is used to control the sealing ring 40 a .
  • an impact or wear insert made of metal or the like. Wear-resistant material is designated, which is provided in front of the mouth of a radial section 64 on the inner groove 25.

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Sealing Devices (AREA)
  • Gasket Seals (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Claims (15)

  1. Procédé destiné au formage d'un profilé creux (10) au moyen d'une haute pression interne générée par un milieu actif circulant dans le volume intérieur du profilé creux rendu étanche, au moins un élément d'étanchéité (26) pouvant être guidé par le milieu actif radialement vers l'extérieur hors de l'espace (24) de celui-ci, réalisé dans une partie d'outil (16) en forme de poinçon, la partie d'outil (16, 16a à 16c) destinée à masquer le volume intérieur du profilé (12) étant appliquée contre la face frontale du profilé creux (10) formé par une ou plusieurs chambres et l'élément d'étanchéité (26, 26c, 40, 40a) étant inséré entre le profilé creux (10) et la partie d'outil (16, 16a, 16b, 16c, 16d) en forme de poinçon appliquée contre celui-ci, caractérisé en ce qu'une soupape de pression, qui est disposée entre l'espace (24) recevant l'élément d'étanchéité (26) et le volume intérieur du profilé (12) dans le trajet du flux ou de l'écoulement du milieu actif, s'ouvre sous l'effet de la pression qui est appliquée sur l'élément d'étanchéité qui est en appui étanche.
  2. Procédé selon la revendication 1, caractérisé en ce que le milieu actif afflue hors de l'espace (24) réservé à l'élément d'étanchéité (26, 26c, 40) et pénètre dans le volume intérieur du profilé (12).
  3. Procédé selon la revendication 1, caractérisé en ce que le milieu actif est introduit séparément, d'une part, dans le volume intérieur du profilé (12) et, d'autre part, dans l'espace (24) réservé à l'élément d'étanchéité (40a).
  4. Procédé selon l'une quelconque des revendications 1 à 3, caractérisé en ce que l'élément d'étanchéité (26, 26c, 40) est enserré de part et d'autre et est précontraint dans le sens axial et/ou radial.
  5. Dispositif destiné au formage d'un profilé creux (10) au moyen d'une haute pression interne générée par un milieu actif circulant dans le volume intérieur du profilé creux rendu étanche, au moins un élément d'étanchéité (26) pouvant être guidé par le milieu actif radialement vers l'extérieur hors de l'espace (24) de réception de celui-ci, réalisé dans une partie d'outil (16) en forme de poinçon, sachant que la partie d'outil (16, 16a à 16c) en forme de poinçon comporte une surface d'épaulement radiale (18) formant une butée pour une extrémité frontale (14) du profilé creux (10) formé par une ou plusieurs chambres, et que la périphérie (22) d'une saillie du poinçon (20, 20a, 20b, 20c), destinée à être insérée dans le volume intérieur du profilé (12), comporte au moins une rainure annulaire (24, 24a, 24c) pour l'élément d'étanchéité (26, 26c, 40, 40a), qui couvre dans le sens de l'axe longitudinal (A) du poinçon au moins un espace d'admission (25) pour le milieu actif et qui, sous l'effet de celui-ci, peut être détaché vers le haut de l'espace d'admission, sachant que, le cas échant, la saillie de poinçon à introduire dans le volume intérieur du profilé (12) est accolée à la surface d'épaulement (18), qui s'avance radialement au-delà de ladite saillie du poinçon et qui délimite avec l'extrémité frontale (14) accolée du profilé creux (10) une jointure (36) contre laquelle l'élément d'étanchéité conçu sous forme de bague d'étanchéité vient en appui sous l'effet du milieu actif, caractérisé en ce qu'une soupape de pression, qui est disposée entre l'espace (24) recevant l'élément d'étanchéité (26) et le volume intérieur du profilé (12) dans le trajet du flux ou de l'écoulement du milieu actif, s'ouvre sous l'effet de la pression qui est appliquée sur l'élément d'étanchéité qui est en appui étanche.
  6. Dispositif selon la revendication 5, caractérisé en ce que la rainure annulaire ou rainure d'étanchéité (24, 24a, 24c) est prolongée par une rainure supplémentaire (25), qui forme un espace d'admission du milieu actif et qui est raccordée à une source du milieu actif par l'intermédiaire d'au moins un canal (28 ; 62, 64) réalisé dans le poinçon (16), sachant que, le cas échéant, la rainure supplémentaire est réalisée sous forme de rainure intérieure dans la partie la plus profonde (27) de la rainure annulaire ou rainure d'étanchéité et est associée radialement à cette dernière.
  7. Dispositif selon la revendication 5 ou 6, caractérisé en ce qu'au moins un canal (62, 64) séparé, formant une conduite sous pression pour le milieu actif, débouche dans la rainure intérieure (25), ledit canal étant formé, le cas échéant, par une partie radiale et une partie parallèle à l'axe.
  8. Dispositif selon la revendication 7, caractérisé en ce qu'une pièce intermédiaire (66) en matériau résistant à l'usure est disposée entre l'embouchure de la conduite sous pression (62, 64) et l'élément d'étanchéité (40a), la pièce intermédiaire (66) étant, le cas échéant, assemblée de manière inamovible avec l'élément d'étanchéité (40a).
  9. Dispositif selon l'une quelconque des revendications 5 à 8, caractérisé en ce que la rainure intérieure (25) est reliée à un évidement central (30) du poinçon (16) par l'intermédiaire de canaux (28) pratiquement radiaux.
  10. Dispositif selon la revendication 9, caractérisé en ce que l'évidement central (30) se prolonge en direction du volume intérieur du profilé (12) par un canal de sortie (34), qui débouche dans la face intérieure du poinçon (17) et qui est muni de la soupape de pression et/ou l'évidement central (30) se rétrécit en direction dudit canal de sortie.
  11. Dispositif selon l'une quelconque des revendications 5 à 10, caractérisé en ce que la saillie du poinçon (20a, 20b) en tant que partie séparée est aboutée à une partie de tête (19, 19a) formant la surface d'épaulement (18) du poinçon (16, 16b), et/ou en ce que la rainure annulaire (24, 24c) s'engage dans la direction parallèle à l'axe en partie dans la surface d'épaulement (18).
  12. Dispositif selon la revendication 5 ou 11, caractérisé en ce que la saillie du poinçon (20b) séparée est insérée dans un logement (48) de la partie de tête (19b) et l'élément d'étanchéité (26), prévu dans la rainure annulaire (24) de la saillie du poinçon (20b), s'engage dans le logement au niveau des faces latérales (49) de celui-ci.
  13. Dispositif selon l'une quelconque des revendications 5 à 12, caractérisé en ce que l'élément d'étanchéité (26c), au niveau de son bord écarté de la surface d'épaulement (18) est recouvert par une nervure de bordure (54) d'un couvercle de poinçon (56), qui est accolé à la face frontale (17) de la saillie du poinçon (20c), et/ou en ce que la rainure annulaire en forme de rainure à épaulement (24a) possède une partie de section en contre-dépouille, ainsi qu'une partie d'épaulement contiguë à la partie de tête (19) du poinçon (16a).
  14. Dispositif selon l'une quelconque des revendications 5 à 13, caractérisé par une bague d'étanchéité (40, 40a) formée par une partie intérieure (41, 41a) en forme de bande et, le cas échéant, par une nervure (44) réalisée au centre de la section de celle-ci.
  15. Dispositif selon la revendication 14, caractérisé en ce que, dans la position montée, la nervure centrale (44) de la bague d'étanchéité (40) est bordée, sur un côté, par une partie de la saillie du poinçon (20a) et, sur l'autre côté, par une nervure annulaire (44) de la partie de tête (19), sachant que, le cas échéant, la nervure centrale (44) de la bague d'étanchéité (40) est chanfreinée au moins sur un bord (41).
EP99810889A 1998-10-08 1999-10-01 Méthode et dispositif pour étancher un profilé creux ou similaire pendant le formage à haute pression Expired - Lifetime EP0995512B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19846467 1998-10-08
DE19846467 1998-10-08
DE19909949A DE19909949B4 (de) 1998-10-08 1999-03-06 Vorrichtung und Verfahren zum Umformen eines Hohlprofils od. dgl. Werkstückes auf dem Wege des Innenhochdruck-Umformens
DE19909949 1999-03-06

Publications (3)

Publication Number Publication Date
EP0995512A2 EP0995512A2 (fr) 2000-04-26
EP0995512A3 EP0995512A3 (fr) 2001-04-11
EP0995512B1 true EP0995512B1 (fr) 2003-10-22

Family

ID=26049387

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99810889A Expired - Lifetime EP0995512B1 (fr) 1998-10-08 1999-10-01 Méthode et dispositif pour étancher un profilé creux ou similaire pendant le formage à haute pression

Country Status (3)

Country Link
EP (1) EP0995512B1 (fr)
AT (1) ATE252429T1 (fr)
ES (1) ES2209372T3 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10056610A1 (de) * 2000-11-15 2002-05-23 Schuler Hydroforming Gmbh & Co Vorrichtung zur Innenhochdruck-Umformung von Hohlkörpern
DE10134321C1 (de) * 2001-07-14 2002-07-25 Benteler Automobiltechnik Gmbh Anordnung zum Abdichten eines Endabschnitts eines rohrförmigen Werkstücks in einem Werkzeug zum Innenhochdruckumformen
DE10311180B3 (de) * 2003-03-12 2004-02-12 Forschungsgesellschaft Umformtechnik Mbh Vorrichtung zum Abdichten der Enden eines Hohlprofils beim Innenhochdruckumformen
CN114618933A (zh) * 2022-03-01 2022-06-14 哈尔滨工业大学（威海） 一种用于管材冲压变形工艺的组合式充气密封方法及装置
CN117619984B (zh) * 2024-01-25 2024-05-07 维格斯(上海)流体技术有限公司 一种不锈钢管加工用水涨成型机

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1245164A (fr) * 1959-01-09 1960-11-04 Procédé de fabrication de tubes ronds et dispositif pour l'exécution de ce procédé
US3625040A (en) * 1969-08-06 1971-12-07 Koppy Tool Corp Method and apparatus for forming articles from a tubular blank
JPS57165134A (en) * 1981-04-03 1982-10-12 Hitachi Ltd Hydraulic bulge working device

Also Published As

Publication number Publication date
EP0995512A2 (fr) 2000-04-26
EP0995512A3 (fr) 2001-04-11
ES2209372T3 (es) 2004-06-16
ATE252429T1 (de) 2003-11-15

Similar Documents

Publication Publication Date Title
DE19813909B4 (de) Hydraulisch aufsteuerbares Rückschlagventil für die Ausbauhydraulik in Bergbau-Untertagebetrieben
DE102013204561A1 (de) Dichtungsanordnung
EP3048081B1 (fr) Systeme de bloc de soupapes pour un appareil de fixation de bouteille
EP0995512B1 (fr) Méthode et dispositif pour étancher un profilé creux ou similaire pendant le formage à haute pression
DE102010011239A1 (de) Fluidische Betätigungsaktuatorik mit einem zweistückigen Zylindergehäuse und Verfahren zur Herstellung einer solchen Betätigungsaktuatorik
DE1259816B (de) Kolben fuer hydraulische Grubenstempel od. dgl.
DE1229480B (de) Hydraulischer Grubenstempel
DE10324307B3 (de) Schnellkupplungseinheit mit integriertem Rückschlagventil
DE10134086C2 (de) Verfahren und Vorrichtung zum Verbinden zweier Bauteile
DE19909949B4 (de) Vorrichtung und Verfahren zum Umformen eines Hohlprofils od. dgl. Werkstückes auf dem Wege des Innenhochdruck-Umformens
DE102014000814B4 (de) Ventileinheit
DE2438666A1 (de) Halterung fuer eine arbeitsvorrichtung
DE4012481C2 (de) Ventilvorrichtung mit einem hydraulisch entsperrbaren Rückschlagventil für hydraulische Systeme des Bergbaus, wie vor allem für hydraulische Ausbausysteme
DE102004009560B4 (de) Zylindervorrichtung
EP3554987B1 (fr) Ensemble élément de remplissage et machine de remplissage
EP3408557B1 (fr) Amortisseur de vibrations
AT394764B (de) Hydraulischer druckuebersetzer
DE19905849C1 (de) Vorrichtung zum Umformen eines Hohlprofils od. dgl. Werkstückes auf dem Wege dem Innenhochdruck-Umformens
DE102006028774A1 (de) Vorrichtung zur Befestigung eines Anbauteils am Umfang eines Hohlprofils
DE10153224B4 (de) Verfahren und Vorrichtung zum Formen und/oder Beschneiden eines Hohlkörpers aus einem Hohlprofil od.dgl. Werkstück
DE4307265C1 (de) Vorrichtung zur Endlagendämpfung eines Kolbens in Druckflüssigkeitszylindern
DE19846323A1 (de) Verfahren und Vorrichtung zum Umformen eines Hohlprofils o. dgl. Werkstückes auf dem Wege des Innenhochdruck-Umformens
DE3207999C2 (fr)
DE10343868B3 (de) Innenhochdruckumformanlage
DE10154439B4 (de) Hydraulikzylinder

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): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

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 CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: ALCAN TECHNOLOGY & MANAGEMENT AG

17P Request for examination filed

Effective date: 20011011

AKX Designation fees paid

Free format text: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AXX Extension fees paid

Free format text: SI PAYMENT 20011011

17Q First examination report despatched

Effective date: 20020607

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 BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Extension state: SI

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 FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20031022

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20031022

Ref country code: IE

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: 20031022

Ref country code: FI

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: 20031022

Ref country code: CY

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: 20031022

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

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

Effective date: 20031022

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: GERMAN

REF Corresponds to:

Ref document number: 59907434

Country of ref document: DE

Date of ref document: 20031127

Kind code of ref document: P

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 FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20040122

Ref country code: GR

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: 20040122

Ref country code: DK

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: 20040122

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2209372

Country of ref document: ES

Kind code of ref document: T3

REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

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

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

Ref country code: LU

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

Effective date: 20041001

Ref country code: GB

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

Effective date: 20041001

Ref country code: AT

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

Effective date: 20041001

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

Ref country code: ES

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

Effective date: 20041002

26N No opposition filed

Effective date: 20040723

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

Ref country code: MC

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

Effective date: 20041031

Ref country code: LI

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

Effective date: 20041031

Ref country code: CH

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

Effective date: 20041031

Ref country code: BE

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

Effective date: 20041031

BERE Be: lapsed

Owner name: *ALCAN TECHNOLOGY & MANAGEMENT A.G.

Effective date: 20041031

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20041001

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

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: 20050630

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20041002

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

Ref country code: DE

Payment date: 20061130

Year of fee payment: 8

BERE Be: lapsed

Owner name: *ALCAN TECHNOLOGY & MANAGEMENT A.G.

Effective date: 20041031

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

Ref country code: PT

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

Effective date: 20040322

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: 20080501