EP0978332A1 - Presse d'extrusion de métaux à plusieurs cylindres - Google Patents

Presse d'extrusion de métaux à plusieurs cylindres Download PDF

Info

Publication number
EP0978332A1
EP0978332A1 EP98114856A EP98114856A EP0978332A1 EP 0978332 A1 EP0978332 A1 EP 0978332A1 EP 98114856 A EP98114856 A EP 98114856A EP 98114856 A EP98114856 A EP 98114856A EP 0978332 A1 EP0978332 A1 EP 0978332A1
Authority
EP
European Patent Office
Prior art keywords
cylinder
plunger
spar
cover
ram
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP98114856A
Other languages
German (de)
English (en)
Other versions
EP0978332B1 (fr
Inventor
Uwe Muschalik
Karl Hermann Claasen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SMS Group GmbH
Original Assignee
SMS Eumuco 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
Application filed by SMS Eumuco GmbH filed Critical SMS Eumuco GmbH
Priority to DE19835717A priority Critical patent/DE19835717A1/de
Priority to DE59800379T priority patent/DE59800379D1/de
Priority to ES98114856T priority patent/ES2153228T3/es
Priority to EP98114856A priority patent/EP0978332B1/fr
Priority to US09/401,582 priority patent/US6082162A/en
Publication of EP0978332A1 publication Critical patent/EP0978332A1/fr
Application granted granted Critical
Publication of EP0978332B1 publication Critical patent/EP0978332B1/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
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/21—Presses specially adapted for extruding metal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/21—Presses specially adapted for extruding metal
    • B21C23/211—Press driving devices

Definitions

  • Metal extrusion presses are mostly designed as frame presses and consist of a cylinder spar, a counter spar, these tie rods connecting to a frame (Pillars) and one in the frame of one in the cylinder of the cylinder beam running plunger movable barrel.
  • a direct pressing process is one Die and a sensor for a block to be pressed on the counter beam supported, while a press die pressing out the block with the Barrel is moved by the piston.
  • In the indirect pressing process is on the counter beam a die stamp supported while the transducer with a Sealing disc receives a block to be pressed and with the Barrel is moved by the plunger.
  • a "frameless" metal extrusion press has now become known from EP 0 822 017 B1, in which the coping with large volume flows is achieved in that the two or more plungers with their cylinders penetrating on both sides Provide piston rods of the same diameter and the piston rods on both sides are sealed off from the cylinders, so that cylinder subspaces on both sides same effective area, which by a to the working stroke by a switchable check valve closable short-circuit line are interconnected.
  • special piston-cylinder units are provided for a quick return stroke and a fast forward run.
  • a disadvantage of the "frameless" metal extrusion press according to the prior art is that their counter spars are stationary and the heavier cylinder spars are arranged displaceably, so that the masses to be moved are correspondingly large are, and that the supply of pressure medium to the cylinders with their plunger over whose piston rods, in the case of the older state of the art, via the Piston rods under compressive force must take place.
  • Cylinder beam and counter beam can be relative are designed to be rigid, but their bending can be done under the pressing force do not rule out entirely and their bending is transferred to that of the frameless metal extrusion presses to replace the piston rods, so that another disadvantage is the high lateral forces in the sealing and Leadership positions.
  • the object of the invention is a structurally simple, functional and stress-oriented training and To achieve the allocation of their components.
  • the invention provides a solution to this problem the combination of features forming the characterizing part of claim 1 or claim 2 before, which is common that by the assignment of packing (Claim 1) or spring-supported separating piston (claim 2) to the plunger storage spaces in the cylinder subspaces beyond the effective surfaces of the ram to accommodate the oil volumes displaced by the plungers during their return stroke exist, the packing connected to the plunger (claim 1) between their plunger and the cylinder end with at least one Compensate for angular deviations between the ram axis and the cylinder axis radial freedom are provided. Together with the fixed arrangement of the Cylinder bars as a carrier of the stationary press tool are the effects the elastic deformation of the components including the pipe connections the pressure medium supply is minimized under the operating load.
  • Radial freedom to be provided can be achieved with a cover that closes the cylinder penetrating filler and seal provided between cover and filler for example, by connecting the packing with the ball joint Plunger, or caused, for example, that the seal in the Cover is kept limited radially movable.
  • An advantageous solution with regard to the overall length of the metal extrusion press results by arranged as a packing between the plunger and the cylinder cover, with these end-connected telescopic tubes are provided, the middle Outside diameter corresponds to the diameter of the piston rods of the ram.
  • a particular structural advantage is an apprenticeship, in which after another Feature of the invention, the first inner telescopic member of a plunger and Piston rod extending pin is formed, and after another, further Feature of the invention, the last outer telescopic member from one in the cylinder cover inserted pipe section formed and the cylinder cover as Hood is formed, the tube and the cavity of the hood taken together one corresponding to the insertion depth of the penultimate telescopic member Have depth.
  • the metal extrusion press of the embodiment shown in Figures 1 to 6 consists of a cylinder spar 1 and a base frame firmly connected to it 2, which is provided on the top with guide beads 3 for guiding a block sensor 4 and a running / counter beam 5.
  • spars 5 are connected to actuating devices 6 which are mounted on sliding plates 7 Wear running shoes 9 lying on or against sliding plates 8.
  • the Adjustment devices 6 are the block sensor 4 and the walking beam 5 on the Main axis "x-x" of the press can be aligned.
  • the cylinder bar 1 is provided with a tool guide 10 for receiving exchangeable Tools 11.
  • the tool support plate 12 has an opening 13 and the cylinder spar 1 is provided with a through opening 14 for the tool 11 shaped strand.
  • the cylinder spar 1 there is a shaft 15 via a lever 16 by a piston-cylinder unit 17 pivotally mounted, one on the end face of the tool 11 carries pivotable shearing knife 18 with which completed pressing process, the baling residue from the strand and from the tool 11 separated can be.
  • piston-cylinder units 19 are in the cylinder spar 1 used, the piston rods 20 of the displacement of the block sensor 4 and the pressure on the tool 11 serve.
  • a block loader 21 can be displaced parallel to the main axis x-x by means of piston-cylinder units 22 can be pivoted about an axis 23 as soon as or as long as it is sufficient There is a distance between the block sensor 4 and the walking beam 5.
  • the Barrel 5 is connected to a piston-cylinder unit 24 about an axis 25 pivotable bracket 26 provided for inserting a block in the Main axis x-x is pivoted out so that a bore 27 is exposed in the spar 5, by means of the piston rod 28 of a piston-cylinder unit 29 from Block loader 21 in the main axis x-x introduced block in the bore of the Block pickup 4 can be pushed.
  • the piston rod 28 is withdrawn and overlaps in time herewith the block loader 21 swung out and with the direct pressing process a press die 30 provided support arm 26 pivoted into the main axis x-x.
  • the pickup holder 4 is connected to the Pickup by appropriately loading the piston-cylinder units 19 pressed against the tool 11.
  • the pressing of a block is carried out by pressurizing the ram 31 in cylinders 32 held by the cylinder spar 1, for which purpose the piston rods 33 Plunger 31 reach into the barrel 5 and are connected to it.
  • the Pistons 31 with their piston rods 33 are hollow drilled over part of their length Immerse the cylinder bores 34 in the plungers 35 which are in contact with the cylinders 32 supporting covers 36.
  • the action on the plunger 35 takes place through the plunger 35 through holes 37, which the Plunger 31 and with them on the piston rods 33 of the barrel 5 in the Move back to the starting position.
  • cylinder subspaces 32R facing away are provided with packing elements which form the free cylinder subspaces 32R to approximately the same size effective areas as that of Limit plunger 31, and the plunger 31 are with several through holes 41 provided, via which the cylinder sections 32H and 32R on both sides of the Plunger 31 via switchable arranged in the through holes 41
  • Check valves 42 two-way cartridge valves according to DIN 24342, also as logic or Cartride valves known
  • the packing is from several telescopic links 40/1, 40/2, 40/3, 40/4 composite telescopic tubes 40 formed, the first telescopic member 40/1 with the associated Main press piston 31 with piston rod 33 and its last telescopic member 40/4 with the cover 36, which closes the associated cylinder 32, the average diameter of the telescopic members 40/1, 40/2, 40/3 and 40/4 the Diameter of the piston rod 33 corresponds.
  • connection of the telescopic links 40/1, 40/2, 40/3 and 40/4 with each other leaves a slight angular deviation of their Center axes to each other, so that a radial freedom between plunger 31st and cylinder end 36 is given by which an angular deviation between the Axes of the cylinder 32 and the axes of the plunger 31 are balanced can.
  • 43a is the pressure medium supply line to act on the plunger 31 in Cylinder 32 to the working stroke of the press
  • 43b the pressure medium supply to Actuation of the plunger 35 in the cylinder bore 34 for the return stroke of the Press
  • the cylinder spar 1 Cylinder 53 used which are provided with plungers 54, the piston rods 55th are connected to the counter beam 5.
  • the plunger 54 are with threaded pin 56th provided on the packing 57 of the same outer diameter as the piston rods 55 are attached.
  • the fillers 57 penetrate the cylinders 53 that close off Lid 58.
  • Sealing ring 59 is placed which is provided with radial clearance to cover 58 and has a flange 60 with which the sealing ring 59 between the cover 58 and a cap ring 61 is axially held and sealed.
  • FIG. cylinder 62 inserted into the cylinder spar 1 shows one with a piston rod 63 connected plunger 64 receives.
  • the cylinder 62 is closed from a cover 65 which is provided with a hood 66.
  • Inserted in the lid 65 and held by the hood 66 is an outer telescopic tubular member 67/1 Telescopic tube 67, which has two further telescopic tube members 67/2 and 67/3, the latter sealingly axially displaceable on a pin 68 of the piston rod 63 is.
  • the pin 68 forms together with the telescopic tube members 67/1, 67/2 and 67/3 a packing, which is located on the back to the active surface of the plunger 64 Cylinder subspace 62R on a corresponding to the effective surface of the plunger 64 Effective area is restricted.
  • the plunger 64 has a plurality of through bores 69 provided, in which controllable check valves 70 are arranged, which open one Connect the cylinder sections 62H and 62R and make a quick one Exchange of the two-sided volumes in rapid traverse or when the press returns allow, while the check valves 70 are closed for the press stroke.
  • the control of the shut-off valve 70 takes place via a pilot valve 71, which is shown in FIG Switch position shown via a control line 72, an epee tube 73, which in a bore 74 in the piston rod 63 and the pin 68 dips and via a Branch line 75 acts on the valve lifter 76 of the check valve 70 and in Closing position brings and holds.
  • the blocking valve 70 is acted upon by the line 72a, via which the pilot valve 71 to a separate oil supply from a Control oil circuit is connected.
  • the cylinder compartment 62R To compensate for small volume differences between the cylinder subspaces 62H and 62R is the cylinder compartment 62R to one Expansion tank 77a connected.
  • the interior of the telescopic tube 67 is with a vent 78 and a termination 79 for leak oil.
  • the construction of the plunger 64 to the press stroke is carried out by the pumps 80 and the branch line 81 in cylinder 62.
  • the corresponding amount of oil in cylinder chamber 62R is determined by the Control block 77 led to the tank.
  • the epee tube 73 is in this embodiment only as part of the control line for actuating the check valve 70 provided and the return stroke is via double-acting piston-cylinder units causes, corresponding to the piston-cylinder units 39 in the embodiment are arranged according to Figure 1.
  • FIG. 10 shows a second embodiment in a detail, while in remaining of this embodiment that shown in Figures 1 to 6 Embodiment corresponds, wherein FIG. 10 is one of the cylinder spars 1 inserted cylinder 82 shows that receives a plunger 84 with piston rod 83.
  • the cylinder 82 is closed by a cover 85 on which a Epee tube or plunger 86 supports, which or the sealing in a bore 87th immersed.
  • the press stroke The amount of oil displaced from the cylinder part space 82R is fed through an epee pipe 92 and a line 93 provided with a pressure relief valve in the oil tank derived.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press Drives And Press Lines (AREA)
  • Actuator (AREA)
EP98114856A 1998-08-07 1998-08-07 Presse d'extrusion de métaux à plusieurs cylindres Expired - Lifetime EP0978332B1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DE19835717A DE19835717A1 (de) 1998-08-07 1998-08-07 Mehrzylinder-Metallstrangpresse
DE59800379T DE59800379D1 (de) 1998-08-07 1998-08-07 Mehrzylinder-Metallstrangpresse
ES98114856T ES2153228T3 (es) 1998-08-07 1998-08-07 Prensa de extrusion de lingotes metalicos, compuesta de varios cilindros.
EP98114856A EP0978332B1 (fr) 1998-08-07 1998-08-07 Presse d'extrusion de métaux à plusieurs cylindres
US09/401,582 US6082162A (en) 1998-08-07 1999-09-22 Multiple-cylinder extrusion press

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19835717A DE19835717A1 (de) 1998-08-07 1998-08-07 Mehrzylinder-Metallstrangpresse
EP98114856A EP0978332B1 (fr) 1998-08-07 1998-08-07 Presse d'extrusion de métaux à plusieurs cylindres
US09/401,582 US6082162A (en) 1998-08-07 1999-09-22 Multiple-cylinder extrusion press

Publications (2)

Publication Number Publication Date
EP0978332A1 true EP0978332A1 (fr) 2000-02-09
EP0978332B1 EP0978332B1 (fr) 2000-12-06

Family

ID=27218579

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98114856A Expired - Lifetime EP0978332B1 (fr) 1998-08-07 1998-08-07 Presse d'extrusion de métaux à plusieurs cylindres

Country Status (4)

Country Link
US (1) US6082162A (fr)
EP (1) EP0978332B1 (fr)
DE (2) DE59800379D1 (fr)
ES (1) ES2153228T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104023865A (zh) * 2011-10-31 2014-09-03 Sms米尔股份有限公司 用于制造金属挤压产品的方法以及挤压机和管材挤压机

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10236297A1 (de) * 2002-08-08 2004-02-19 Sms Eumuco Gmbh Haupt- bzw. Preßzylinder einer Rohr- und Strangpresse
US7624614B2 (en) * 2004-11-25 2009-12-01 Gudel Group Ag Conveyor for transporting work pieces in a press
CN102172659B (zh) * 2011-03-05 2012-10-31 尚守亮 多挤压杆挤压设备
KR101557132B1 (ko) * 2011-10-31 2015-10-02 에스엠에스 메르 게엠베하 압출기 및 튜브 압출기 또는 금속 압출 프레스
CN102649152A (zh) * 2012-04-16 2012-08-29 启东凯雷达模具制造有限公司 一种控制压铸件型芯孔隙率的挤压机构

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3311030A (en) * 1965-02-09 1967-03-28 Halstead Metal Products Inc Self-aligning packing gland arrangements
US3786725A (en) * 1971-07-10 1974-01-22 K Aoki Hydraulic type mold clamping device
US3818801A (en) * 1971-11-01 1974-06-25 Hydron Inc Fluid actuating mechanism having alternatively selectable fast and slow modes of operation
US4944215A (en) * 1988-12-13 1990-07-31 Nimmo Frank D Fluid actuated cylinder assembly with a floating cylinder head
EP0822017A1 (fr) * 1996-07-24 1998-02-04 SMS EUMUCO GmbH Système d'entraínement pour une presse d'extrusion de métaux

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE510895C (de) * 1929-02-12 1930-10-24 Hydraulik G M B H Verfahren zur Herstellung von Metallrohren in Strangpressen
US3649816A (en) * 1970-11-09 1972-03-14 Allegheny Ludlum Ind Inc Control system for hydraulic extrusion press
US4379398A (en) * 1980-06-12 1983-04-12 Kabushiki Kaisha Kobe Seiko Sho Pull-back type indirect extrusion press
JPH068021B2 (ja) * 1987-02-27 1994-02-02 青木 茂人 射出成形機の型締機構
AT389079B (de) * 1988-05-19 1989-10-10 Engel Gmbh Maschbau Schliessmechanismus einer spritzgiessmaschine
DE3937276C1 (fr) * 1989-11-09 1991-01-24 Hasenclever Maschf Sms

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3311030A (en) * 1965-02-09 1967-03-28 Halstead Metal Products Inc Self-aligning packing gland arrangements
US3786725A (en) * 1971-07-10 1974-01-22 K Aoki Hydraulic type mold clamping device
US3818801A (en) * 1971-11-01 1974-06-25 Hydron Inc Fluid actuating mechanism having alternatively selectable fast and slow modes of operation
US4944215A (en) * 1988-12-13 1990-07-31 Nimmo Frank D Fluid actuated cylinder assembly with a floating cylinder head
EP0822017A1 (fr) * 1996-07-24 1998-02-04 SMS EUMUCO GmbH Système d'entraínement pour une presse d'extrusion de métaux

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104023865A (zh) * 2011-10-31 2014-09-03 Sms米尔股份有限公司 用于制造金属挤压产品的方法以及挤压机和管材挤压机
CN104023865B (zh) * 2011-10-31 2016-10-19 Sms米尔股份有限公司 用于制造金属挤压产品的方法以及挤压机

Also Published As

Publication number Publication date
DE19835717A1 (de) 2000-02-17
ES2153228T3 (es) 2001-02-16
DE59800379D1 (de) 2001-01-11
EP0978332B1 (fr) 2000-12-06
US6082162A (en) 2000-07-04

Similar Documents

Publication Publication Date Title
EP2773470B1 (fr) Procédé de production de produits métalliques filés ainsi que presse à filer pour produits pleins et tubulaires
EP2773471B1 (fr) Presse d'extrusion de tubes ou de barres métalliques
DE19957888C2 (de) Vorrichtung zum hydraulischen Hochdruckformen eines rohrförmigen Bauteils oder einer Platine
DE2830779C2 (de) Hydraulische Doppeldruckpresse
EP3115190B1 (fr) Dispositif et procede de commande de l'entrainement principal d'une presse pour decoupage de precision
DE2319344A1 (de) Doppeltwirkende teleskop-zylinderkolbenvorrichtung
EP0978332B1 (fr) Presse d'extrusion de métaux à plusieurs cylindres
EP1023132B1 (fr) Systeme d'entrainement hydraulique pour presse a forger ou coulisseaux de machine a forger
EP0822017B1 (fr) Système d'entraínement pour une presse d'extrusion de métaux
DE102004006126A1 (de) Presse mit verriegeltem Stößel
EP1526930B1 (fr) Cylindre principal ou cylindre de compression d'une extrudeuse
DE2810894C2 (fr)
EP0820820B1 (fr) Presse d'extrusion de métaux horizontale
DE1961892C3 (de) Hydraulische Tiefziehpresse
DE10139520A1 (de) Spannelement zum Spannen von Werkstücken
DE1552949C3 (de) Schmiedemaschine zur Verringerung der Dicke von durchlaufendem Metallband
DE2247596A1 (de) Zylinderanordnung mit arbeitskolben und vorhubkolben
DE19607257C2 (de) Hydraulische Blechformpresse
DE1703726C3 (de) Druckflüssigkeitsbetriebene Vorrichtung zur Erzeugung einer hin- und hergehenden Bewegung
DE4311110A1 (de) Formspannbacken für eine Spannvorrichtung
DE102020121143B4 (de) Radialpresse
DE719055C (de) Vorrichtung zum Verformen von duennwandigen Werkstuecken
DE2822238C2 (de) Druckmittelbetriebene Kolbenpresse
DE601330C (de) Doppelt wirkende hydraulische Presse
DE2116018C3 (de) Hydrauliksystem für die Ziehkissenbetätigung an Pressen mit mehrteiligen PreBstempeln

Legal Events

Date Code Title Description
GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

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: 19990218

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE ES FR GB IT

AX Request for extension of the european patent

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

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

AKX Designation fees paid

Free format text: DE ES FR GB IT

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE ES FR GB IT

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

Effective date: 20001206

REF Corresponds to:

Ref document number: 59800379

Country of ref document: DE

Date of ref document: 20010111

ET Fr: translation filed
REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2153228

Country of ref document: ES

Kind code of ref document: T3

ITF It: translation for a ep patent 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: GB

Payment date: 20040730

Year of fee payment: 7

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

Ref country code: DE

Payment date: 20040805

Year of fee payment: 7

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

Ref country code: FR

Payment date: 20040809

Year of fee payment: 7

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

Ref country code: ES

Payment date: 20040819

Year of fee payment: 7

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;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: 20050807

Ref country code: GB

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

Effective date: 20050807

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: 20050808

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: 20060301

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

Effective date: 20050807

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: 20060428

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20060428

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20050808