EP1475168A1 - Device for sealing the ends of a tubular workpiece for use in an hydroforming method - Google Patents
Device for sealing the ends of a tubular workpiece for use in an hydroforming method Download PDFInfo
- Publication number
- EP1475168A1 EP1475168A1 EP04005551A EP04005551A EP1475168A1 EP 1475168 A1 EP1475168 A1 EP 1475168A1 EP 04005551 A EP04005551 A EP 04005551A EP 04005551 A EP04005551 A EP 04005551A EP 1475168 A1 EP1475168 A1 EP 1475168A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sealing body
- clamping
- sealing
- housing
- clamping insert
- 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.)
- Withdrawn
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 device for sealing the Ends of a hollow profile in hydroforming after Preamble of the first claim.
- a device for Internal high pressure forming of a hollow body is known, one Opening of a hollow body by means of an elastic Sealing body is closed.
- the sealing body will via a pressure body with the effective internal pressure applied. It also acts on the pressure body force-generating element in the form of a spring which over a Drawbar the contact force between the pressure and sealing body further increased, whereby the pressure body against the Sealing body is clamped.
- the contact surface between the sealing and The pressure body is wedge-shaped.
- the object of the invention is a device for sealing to develop the ends of a hollow profile, with which durability and tightness at high axial tensile stresses the connection is guaranteed.
- the device for sealing the ends of a hollow profile in hydroforming has a sealing body which the opening of a hollow body is closed.
- the Clamping insert has one or more grooves into which the Pipe wall over the sealing body under pressure is malleable.
- the clamping insert is axial in at least two Parts divided and seated in a housing, the housing is removable from the clamping insert. The parts of the Clamping insert are after removing the housing from the Removable sealing body.
- the sealing body is elastic executed and the grooves are made by an elastic Deformation of the sealing body shaped.
- the Sealing body which has a pressure disc and a Drawbar is connected to a piston / cylinder unit, elastically deformed, whereby the clamping bead is formed and the pipe is clamped.
- the housing and the piston / cylinder unit are detachable connected to each other and form an assembly, whereby the Clamp insert can be easily removed.
- the sealing body is rigid executed and the grooves in the clamping insert are by means of hydraulic or pneumatic pressure.
- the sealing body has at least one annular groove, which on Grooves have holes in the radial direction.
- sealing body has at least one bore in Longitudinal direction. The sealing body is on the pipe facing end connected to the housing, whereby these are separated from the tube / clamping insert unit can.
- Fig. 1 shows the sealing unit consisting of elastic DK sealing body, GE housing, ZK cylinder / piston unit, nut M, tension rod ZS, thrust washer DS, clamping insert KE with one circumferential groove N in the middle area and tube R.
- Fig.2 shows the sealing unit consisting of rigid sealing body DK, which has an annular groove RN, at least one radial hole BR and an axial bore BA opening into this, as well as a Longitudinal bore (through bore) LB has.
- a Clamping unit KE has a circumferential groove N in the middle area on. The groove is sealed on both sides by seals D. That sits between the sealing body DK and the clamping insert KE End of tube R.
- the sealing adapter In order to seal the pipe R to be formed from the environment, becomes a two-part KE clamping insert at the pipe ends attached.
- the unit tube R / clamping insert KE is then in the housing GE of the sealing adapter is inserted, the Clamping and thus sealing the pipe R, through which Characterization of the grooves N in the KE clamping insert and thus the Formation of clamping beads takes place.
- the sealing adapter has a sealing body DK, which is elastically deformable (Fig.1).
- the Sealing body DK is by means of a pressure plate DS, which over a pull rod ZS is connected to a cylinder / piston ZK elastically deformable.
- the sealing body DK is rigid (FIG. 2) and is permanently connected to the housing GE on the end face.
- the sealing body DK has an annular groove RN, in which there is a bore or bores in the radial direction RB at the bottom of the groove, which are connected to an axial bore BA and which serve to supply pressure medium into the groove N.
- the pressure medium is fed into the tube R via a longitudinal bore / through bore LB.
- the clamping insert KE which has a circumferential groove N for a clamping bead on the side facing the pipe, is fastened to the pipe ends of the pipe R and preloaded radially and then inserted into the housing GE.
- the clamping bead is formed over the ring groove RN and the tube is clamped in its position.
- greater axial tensile stresses can be transmitted to the tube, for example when the tube is pre-bent, without the tube being pulled out of the device for sealing the ends of a hollow profile.
- the pressure medium for internal high pressure forming is fed into the pipe via the through bore / longitudinal bore LB.
- the pressure chamber is sealed using seals D (Fig. 2).
- the housing is GE for both versions removed from the material to be formed by axial pull, whereby the two-part clamping insert KE can be removed from tube R.
Abstract
Description
Die Erfindung betrifft eine Vorrichtung zum Abdichten der Enden eines Hohlprofiles beim Innenhochdruckumformen nach dem Oberbegriff des ersten Patentanspruchs.The invention relates to a device for sealing the Ends of a hollow profile in hydroforming after Preamble of the first claim.
Nach DE 199 09 927 A1 ist eine Vorrichtung zum Innenhochdruckumformen eines Hohlkörpers bekannt, wobei eine Öffnung eines Hohlkörpers mittels eines elastischen Dichtkörpers verschlossen wird. Der Dichtkörper wird dabei über einen Druckkörper mit dem wirkenden Innendruck beaufschlagt. Zusätzlich wirkt auf den Druckkörper ein krafterzeugendes Element in Form einer Feder welche über eine Zugstange die Anpresskraft zwischen Druck- und Dichtkörper weiter erhöht, wodurch der den Druckkörper gegen den Dichtkörper verspannt wird. Die Anlagefläche zwischen Dichtund Druckkörper ist dabei keilförmig ausgebildet.According to DE 199 09 927 A1, a device for Internal high pressure forming of a hollow body is known, one Opening of a hollow body by means of an elastic Sealing body is closed. The sealing body will via a pressure body with the effective internal pressure applied. It also acts on the pressure body force-generating element in the form of a spring which over a Drawbar the contact force between the pressure and sealing body further increased, whereby the pressure body against the Sealing body is clamped. The contact surface between the sealing and The pressure body is wedge-shaped.
Nachteil dieser Lösung ist, dass die Klemmung Hohlprofils nur durch einen möglichst hohe Reibungskräfte erfolgt, wodurch bei sehr hohen Zugkräften auf das Hohlprofil dessen Ende aus der Vorrichtung zum Abdichten gezogen werden kann. The disadvantage of this solution is that the clamping hollow profile only through the highest possible frictional forces, whereby at very high tensile forces on the hollow profile thereof End can be pulled out of the device for sealing.
Aufgabe der Erfindung ist es, eine Vorrichtung zum Abdichten der Enden eines Hohlprofiles zu entwickeln, mit welchem auch bei hohen axialen Zugspannungen die Haltbarkeit und Dichtheit der Verbindung gewährleistet ist.The object of the invention is a device for sealing to develop the ends of a hollow profile, with which durability and tightness at high axial tensile stresses the connection is guaranteed.
Diese Aufgabe wird erfindungsgemäß mit den kennzeichnenden Merkmalen des ersten Patentanspruchs gelöst. Vorteilhafte Ausführungen ergeben sich aus den Unteransprüchen.This object is achieved with the characteristic Features of the first claim solved. advantageous Comments result from the subclaims.
Die Vorrichtung zum Abdichten der Enden eines Hohlprofils beim Innenhochdruckumformen weist einen Dichtkörper auf mit welchem die Öffnung eines Hohlkörpers verschlossen wird. Erfindungsgemäß ist zwischen dem Ende des Hohlprofils und dem Dichtkörper einem Klemmeinsatz angeordnet, wobei der Klemmeinsatz eine oder mehrere Nuten aufweist, in welche die Rohrwandung über den Dichtkörper unter Druckeinwirkung einformbar ist. Der Klemmeinsatz ist axial in mindestens zwei Teile geteilt und sitzt in einem Gehäuse, wobei das Gehäuse von dem Klemmeinsatz entfernbar ist. Die Teile des Klemmeinsatzes sind nach dem Entfernen des Gehäuses vom Dichtkörper lösbar.The device for sealing the ends of a hollow profile in hydroforming has a sealing body which the opening of a hollow body is closed. According to the invention is between the end of the hollow profile and the Sealing body arranged a clamping insert, the Clamping insert has one or more grooves into which the Pipe wall over the sealing body under pressure is malleable. The clamping insert is axial in at least two Parts divided and seated in a housing, the housing is removable from the clamping insert. The parts of the Clamping insert are after removing the housing from the Removable sealing body.
In der ersten Ausführung ist der Dichtkörper elastisch ausgeführt und die Nuten werden durch eine elastische Verformung des Dichtkörpers ausgeformt. Hierzu wird der Dichtkörper, welcher über eine Druckscheibe und eine Zugstange mit einer Kolben/Zylindereinheit verbunden ist, elastisch verformt, wodurch die Klemmsicke ausgebildet und das Rohr geklemmt wird.In the first embodiment, the sealing body is elastic executed and the grooves are made by an elastic Deformation of the sealing body shaped. For this, the Sealing body, which has a pressure disc and a Drawbar is connected to a piston / cylinder unit, elastically deformed, whereby the clamping bead is formed and the pipe is clamped.
Das Gehäuse und die Kolben/Zylindereinheit sind lösbar miteinender verbunden und bilden eine Baugruppe, wodurch der Klemmeinsatz einfach entnommen werden kann.The housing and the piston / cylinder unit are detachable connected to each other and form an assembly, whereby the Clamp insert can be easily removed.
In einer zweiten Ausführung ist der Dichtkörper starr ausgeführt und die Nuten im Klemmeinsatz werden mittels hydraulischen oder pneumatischen Drucks ausgeformt. Hierzu weist der Dichtkörper mindestens eine Ringnut auf, welche am Nutgrund Bohrungen in radialer Richtung aufweist. Des weiteren weist Dichtkörper mindestens eine Bohrung in Längsrichtung auf. Der Dichtkörper ist auf der dem Rohr abgewandten Stirnseite mit dem Gehäuse verbunden, wodurch dieser von der Rohr/Klemmeinsatz Einheit getrennt werden kann.In a second embodiment, the sealing body is rigid executed and the grooves in the clamping insert are by means of hydraulic or pneumatic pressure. For this the sealing body has at least one annular groove, which on Grooves have holes in the radial direction. Of furthermore, sealing body has at least one bore in Longitudinal direction. The sealing body is on the pipe facing end connected to the housing, whereby these are separated from the tube / clamping insert unit can.
Die Erfindung wird nachfolgend anhand von Zeichnungen und eines Ausführungsbeispiels näher erläutert. The invention is based on drawings and of an embodiment explained in more detail.
Es zeigen:
- Fig.1:
- Dichteinheit mit elastischem Dichtkörper
- Fig.2:
- Dichteinheit mit starrem Dichtkörper
- Fig.1:
- Sealing unit with elastic sealing body
- Figure 2:
- Sealing unit with rigid sealing body
Fig. 1 zeigt die Dichteinheit bestehend aus elastischem Dichtkörper DK, Gehäuse GE, Zylinder/Kolbeneinheit ZK, Mutter M, Zugstab ZS, Druckscheibe DS, Klemmeinsatz KE mit einer umlaufenden Nut N im Mittenbereich und Rohr R. Fig.2 zeigt die Dichteinheit bestehend aus starren Dichtkörper DK, welcher eine Ringnut RN, mindestens eine radiale Bohrung BR und eine in diese mündende axiale Bohrung BA, sowie eine Längsbohrung (Durchgangsbohrung) LB aufweist. Eine Klemmeinheit KE weist eine umlaufende Nut N im Mittenbereich auf. Beidseitig ist die Nut über Dichtungen D abgedichtet. Zwischen dem Dichtkörper DK und dem Klemmeinsatz KE sitzt das Ende des Rohres R.Fig. 1 shows the sealing unit consisting of elastic DK sealing body, GE housing, ZK cylinder / piston unit, nut M, tension rod ZS, thrust washer DS, clamping insert KE with one circumferential groove N in the middle area and tube R. Fig.2 shows the sealing unit consisting of rigid sealing body DK, which has an annular groove RN, at least one radial hole BR and an axial bore BA opening into this, as well as a Longitudinal bore (through bore) LB has. A Clamping unit KE has a circumferential groove N in the middle area on. The groove is sealed on both sides by seals D. That sits between the sealing body DK and the clamping insert KE End of tube R.
Um das umzuformende Rohr R gegen die Umgebung abzudichten, wird an den Rohrenden ein zweigeteilter Klemmeinsatz KE befestigt. Die Einheit Rohr R/Klemmeinsatz KE wird so dann in das Gehäuse GE des Dichtadapters eingeführt, wobei die Klemmung und somit Abdichtung des Rohrs R, durch die Ausprägung der Nuten N im Klemmeinsatz KE und somit die Ausbildung von Klemmsicken erfolgt. Im ersten Ausführungsbeispiel, weist der Dichtadapter einen Dichtkörper DK auf, welcher elastisch verformbar ist (Fig.1). Der Dichtkörper DK ist mittels einer Druckplatte DS, welche über eine Zugstange ZS mit einer Zylinder/Kolben ZK verbunden ist elastisch verformbar. Durch eine durch die Zylinder/Kolben ZK aufzubringende Axialkraft wird Dichtkörper DK in seiner Länge verkürzt, womit der radiale Umfang im Dichtkörpermittenbereich zunimmt und die umlaufende Nut N im Klemmeinsatz KE und somit eine Klemmsicke ausgeformt werden kann.In order to seal the pipe R to be formed from the environment, becomes a two-part KE clamping insert at the pipe ends attached. The unit tube R / clamping insert KE is then in the housing GE of the sealing adapter is inserted, the Clamping and thus sealing the pipe R, through which Characterization of the grooves N in the KE clamping insert and thus the Formation of clamping beads takes place. In the first Exemplary embodiment, the sealing adapter has a sealing body DK, which is elastically deformable (Fig.1). The Sealing body DK is by means of a pressure plate DS, which over a pull rod ZS is connected to a cylinder / piston ZK elastically deformable. Through a through the cylinder / piston ZK The axial force to be applied becomes sealing body DK in its length shortens, which means the radial circumference in the area of the sealing body increases and the circumferential groove N im KE clamping insert and thus a clamping bead are formed can.
In einer zweiten Art der Ausführung ist der Dichtkörper DK
starr ausgeführt (Fig.2) und mit dem Gehäuse GE stirnseitig
fest verbunden. Der Dichtkörper DK weist eine Ringnut RN auf,
bei welcher sich am Nutgrund eine Bohrung oder Bohrungen in
radialer Richtung RB befinden, welche mit einer axialen
Bohrung BA in Verbindung stehen und die zu Zuführung von
Druckmedium in die Nut N dienen. Über eine
Längsbohrung/Durchgangsbohrung LB wird das Druckmittel in das
Rohr R geleitet. Um das Rohr R an seinem Ende zu Klemmen und
abzudichten, wird der Klemmeinsatz KE, welcher auf der
Rohrzugewandten Seite eine umlaufende Nut N für eine
Klemmsicke aufweist, an den Rohrenden des Rohres R befestigt
und radial vorgespannt und so dann in das Gehäuse GE
eingeführt. Durch die Zufuhr von Hydraulikmedium durch die
radiale Bohrung RB und die axiale Bohrung BA wird die
Klemmsicke über die Ringnut RN ausgeformt und Rohr in seiner
Position geklemmt. Dadurch können größere axiale
Zugspannungen auf das Rohr übertragen werden, z.B. bei einem
Vorbiegen des Rohres, ohne dass das Röhr aus der Vorrichtung
zum Abdichten der Enden eines Hohlprofiles gezogen wird.
Über die Durchgangsbohrung/Längsbohrung LB wird das
Druckmittel zum Innenhochdruckumformen in das Rohr geleitet.
Die Abdichtung des Druckraums erfolgt über die Dichtungen D
(Fig.2).In a second type of embodiment, the sealing body DK is rigid (FIG. 2) and is permanently connected to the housing GE on the end face. The sealing body DK has an annular groove RN, in which there is a bore or bores in the radial direction RB at the bottom of the groove, which are connected to an axial bore BA and which serve to supply pressure medium into the groove N. The pressure medium is fed into the tube R via a longitudinal bore / through bore LB. In order to clamp and seal the pipe R at its end, the clamping insert KE, which has a circumferential groove N for a clamping bead on the side facing the pipe, is fastened to the pipe ends of the pipe R and preloaded radially and then inserted into the housing GE. By supplying hydraulic medium through the radial bore RB and the axial bore BA, the clamping bead is formed over the ring groove RN and the tube is clamped in its position. As a result, greater axial tensile stresses can be transmitted to the tube, for example when the tube is pre-bent, without the tube being pulled out of the device for sealing the ends of a hollow profile.
The pressure medium for internal high pressure forming is fed into the pipe via the through bore / longitudinal bore LB. The pressure chamber is sealed using seals D (Fig. 2).
Am Prozessende wird bei beiden Ausführungen das Gehäuse GE durch axialen Zug vom Umformgut entfernt, wodurch der zweigeteilte Klemmeinsatz KE vom Rohr R entfernt werden.At the end of the process, the housing is GE for both versions removed from the material to be formed by axial pull, whereby the two-part clamping insert KE can be removed from tube R.
Claims (13)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10311180 | 2003-03-12 | ||
| DE2003111180 DE10311180B3 (en) | 2003-03-12 | 2003-03-12 | Internal high-pressure deformation device for sealing ends of tubes has tube end fitted between seal body and clamping insert |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP1475168A1 true EP1475168A1 (en) | 2004-11-10 |
Family
ID=30128906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP04005551A Withdrawn EP1475168A1 (en) | 2003-03-12 | 2004-03-09 | Device for sealing the ends of a tubular workpiece for use in an hydroforming method |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP1475168A1 (en) |
| DE (1) | DE10311180B3 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3756781A4 (en) * | 2018-02-23 | 2021-03-24 | Sumitomo Heavy Industries, Ltd. | Forming device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0995512A2 (en) * | 1998-10-08 | 2000-04-26 | Alusuisse Technology & Management AG | Method and device for sealing a hollow profile or similar workpiece in high pressure forming |
| DE19909927A1 (en) * | 1999-03-06 | 2000-09-14 | Audi Ag | Forming tool for internal high pressure forming of hollow profiles has elastic seal to close profile opening, loaded by high-pressure forming fluid and additional pressure spring |
| EP1170069A1 (en) * | 2000-07-05 | 2002-01-09 | Alcan Technology & Management AG | Device for internal high pressure forming of hollow profiles |
| DE10043024A1 (en) * | 2000-09-01 | 2002-03-21 | Audi Ag | Method for forming by high internal pressure a hollow profile whose cavity during the forming process is filled with an elastic sealing element which is further utilized to trim the profile by cutting off a section |
-
2003
- 2003-03-12 DE DE2003111180 patent/DE10311180B3/en not_active Expired - Fee Related
-
2004
- 2004-03-09 EP EP04005551A patent/EP1475168A1/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0995512A2 (en) * | 1998-10-08 | 2000-04-26 | Alusuisse Technology & Management AG | Method and device for sealing a hollow profile or similar workpiece in high pressure forming |
| DE19909927A1 (en) * | 1999-03-06 | 2000-09-14 | Audi Ag | Forming tool for internal high pressure forming of hollow profiles has elastic seal to close profile opening, loaded by high-pressure forming fluid and additional pressure spring |
| EP1170069A1 (en) * | 2000-07-05 | 2002-01-09 | Alcan Technology & Management AG | Device for internal high pressure forming of hollow profiles |
| DE10043024A1 (en) * | 2000-09-01 | 2002-03-21 | Audi Ag | Method for forming by high internal pressure a hollow profile whose cavity during the forming process is filled with an elastic sealing element which is further utilized to trim the profile by cutting off a section |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3756781A4 (en) * | 2018-02-23 | 2021-03-24 | Sumitomo Heavy Industries, Ltd. | Forming device |
| US11491529B2 (en) | 2018-02-23 | 2022-11-08 | Sumitomo Heavy Industries, Ltd. | Forming device |
Also Published As
| Publication number | Publication date |
|---|---|
| DE10311180B3 (en) | 2004-02-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE3701555C1 (en) | Pipe connection for thin-walled, small-caliber metal pipes | |
| DE1603694B2 (en) | Hydraulic clamping device, especially a chuck or mandrel | |
| WO2005097384A2 (en) | Expansion chucking device | |
| EP2573440A2 (en) | Connection assembly | |
| EP2153917A2 (en) | Spreader tool for pipes and pipe press coupling | |
| DE4108741C2 (en) | ||
| DE3226868A1 (en) | PERMANENTLY TIGHT THREADED PIPE CONNECTION | |
| EP1179149B1 (en) | Sealing device for a piston which is subjected to the action of a pressure medium and which is arranged in a working cylinder | |
| DE3415627A1 (en) | PIPE TEST DEVICE | |
| EP1114252B1 (en) | High pressure fuel accumulator with prestressed welded connecting socket for a fuel injection system of internal combustion engines | |
| DE2644533C3 (en) | Rigid and essentially non-deformable piston, in particular for high-pressure compressors and processes for its manufacture | |
| DE3520874C1 (en) | Pipe screw union for plastic pipes | |
| DE102013109880B4 (en) | Low-friction end replenishment during hydroforming | |
| DE10134086C2 (en) | Method and device for connecting two components | |
| EP0124471B1 (en) | Tool for testing pipes in a pipe test press | |
| DE10311180B3 (en) | Internal high-pressure deformation device for sealing ends of tubes has tube end fitted between seal body and clamping insert | |
| WO2017036610A1 (en) | Sealing head, device and method for producing bimetallic pipes | |
| WO2008058597A1 (en) | Coupling apparatus | |
| DE3312073A1 (en) | Pressure build-up mandrel for the pressure-tight fixing of a tube | |
| DE3304467A1 (en) | Apparatus for the stepwise expansion of large tubes | |
| DE102009052284A1 (en) | Connector for connecting e.g. hose to hydraulic- or pneumatic cylinder, has collars formed as and/or by bulge-like or flange-shaped expansions, where connector is formed from pipe section by shaping process | |
| DE19941577A1 (en) | Connection for high pressure pipes comprises threaded junction piece into which pipe fits and clamping nut which fastens two together, elastomeric sealing ring being positioned between cone of junction piece and front of collar at pipe end | |
| DE102021211580B3 (en) | Punch for an injection molding machine, use of the punch in an injection molding machine and injection molding machine | |
| DE3809369C2 (en) | ||
| DE2932055A1 (en) | METHOD AND DEVICE FOR POSITIONING AND EXPANDING TUBES |
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: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR |
|
| AX | Request for extension of the european patent |
Extension state: AL LT LV MK |
|
| AKX | Designation fees paid |
Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 20050511 |