EP0658379A1 - Broyeur à rouleau - Google Patents

Broyeur à rouleau Download PDF

Info

Publication number
EP0658379A1
EP0658379A1 EP94119699A EP94119699A EP0658379A1 EP 0658379 A1 EP0658379 A1 EP 0658379A1 EP 94119699 A EP94119699 A EP 94119699A EP 94119699 A EP94119699 A EP 94119699A EP 0658379 A1 EP0658379 A1 EP 0658379A1
Authority
EP
European Patent Office
Prior art keywords
grinding
grinding roller
roller
ring
drive
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
EP94119699A
Other languages
German (de)
English (en)
Other versions
EP0658379B1 (fr
Inventor
Martin H. Gygi
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0658379A1 publication Critical patent/EP0658379A1/fr
Application granted granted Critical
Publication of EP0658379B1 publication Critical patent/EP0658379B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C15/00—Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs
    • B02C15/08—Mills with balls or rollers centrifugally forced against the inner surface of a ring, the balls or rollers of which are driven by a centrally arranged member

Definitions

  • the invention relates to a roll mill according to the preamble of the first claim.
  • Mills of this type with a grinding roller that rolls in a cylindrical grinding ring surface and in which the diameter of the grinding roller corresponds at least to the radius of the grinding ring surface are e.g. known from WO 87/06500 and FR-349 886.
  • Various advantages result from the use of such a large grinding roller.
  • the rolling resistance is reduced compared to non-generic solutions with several smaller grinding rollers arranged on one level, such as those e.g. in EP-A-0 102 645 are considerable.
  • the mechanical structure becomes simpler because e.g. less storage is required and the system becomes less sensitive to hard foreign objects such as e.g. Metal.
  • the grinding roller was generally pivotally suspended and brought to rotation about its own axis by a drive. This led to a rolling movement of the grinding roller on the cylindrical grinding ring surface.
  • the task is to provide a roll mill of the type mentioned, which does not show these disadvantages of the known devices. Furthermore, the roller mill should be as simple as possible to construct and be as robust as possible.
  • the drive does not directly cause the grinding roller to rotate about its own axis, but rather drives it by means of a tangential force component to circulate in the grinding ring surface so that it rolls on it.
  • the rotation frequency of the grinding roller center of gravity can be controlled directly by the drive frequency and is no longer dependent on the grinding roller diameter.
  • the pressing force of the grinding roller on the grinding ring surface is therefore also much less dependent on the grinding roller diameter and changes only slightly when the grinding roller is worn.
  • the grinding ring surface and / or grinding roller are preferably mounted such that they can be deflected laterally.
  • the grinding ring surface performs a lateral pendulum movement during operation, the common center of gravity of the grinding roller and grinding ring surface being practically not deflected. In this way, the load on the frame of the mill is reduced.
  • the grinding roller is preferably held by a grinding roller table which is gimbally attached to the grinding ring is.
  • the grinding roller table is driven by the drive in a circular movement around the mill axis.
  • the grinding roller and grinding ring form a jointly mounted unit, the focus of which remains stationary during operation. This reduces the dynamic loads to which the mill frame is subjected.
  • Figure 1 shows a section through a first embodiment of the invention. This is a mill for grinding gravel and stone, for example for cement production.
  • the most important parts of the mill are the grinding roller 1, 2, the grinding ring 3, 4, the suspension 5 rsp. 6, the drive 7 with the coupling 8 between the drive 7 and the grinding roller 1, 2.
  • the grinding roller 1, 2 consists of an outer jacket 1 made of hard steel, for example manganese steel, and a core 2 made of aluminum. He is with a pivot bearing 9 a grinding roller holder 10 connected. This pivot bearing is coaxial to the axis of the grinding roller. The grinding roller 1, 2 is thus rotatable about its grinding roller axis relative to the holder 10.
  • the grinding roller holder is suspended from three schematically shown cardan shafts 6 on the cover 11 of the frame of the mill. Each cardan shaft consists of three rigid parts that are connected by two cardan joints. The use of at least one cardan shaft prevents rotation of the grinding roller holder 10 with respect to the frame of the mill, without the pivoting out of the grinding roller holder to the side being prevented.
  • the grinding roller holder 10 consists of the supporting structure, as shown in Figures 3 and 4. It has three arms 12 for receiving the cardan shafts. Baffles 13 for guiding the ground material are provided on these arms. The screws for fastening the bearing 9 are inserted in six holes 14.
  • the grinding roller holder serves on the one hand to hold the grinding roller and on the other hand as a distribution plate for the grinding stock falling through the opening 15 (FIG. 1) from above.
  • the grinding ring 3, 4 can be seen from FIG. 1 outside the grinding roller 1, 2.
  • This consists of an inner layer 3 made of hard steel, the surface of which forms the grinding ring surface 16, and an outer ring 4, which can be made of a softer material.
  • the grinding ring is connected to the cover 11 of the mill frame via three cardan shafts 5 which are offset by 120 ° and are only shown schematically.
  • the use of at least one propeller shaft prevents the grinding ring 3, 4 from rotating against the mill without a lateral deflection of the ring being impeded.
  • a cylindrical guide plate 46 is provided on the grinding ring, which prevents ground material from falling laterally over the grinding ring.
  • a rubber ring 17 is arranged outside the grinding ring. This acts as damping in the event that the grinding ring is deflected too much. Such strong excursions can occur in a low speed range when starting up and / or running down the mill if the rotational frequency corresponds to the natural vibration frequency of the pendulum body.
  • the motor 7 here is a three-phase motor with 30 kW power. It is connected to the axis 19, which rotates the drive table 20, via a gear mechanism (not shown in detail) or only a coupling 18 of a known type.
  • stop bars 21 running parallel to one another are arranged on the drive table. Between these beams, a guideway 22 runs radially on the drive table. A stop body 23 projects into this and is axially connected to the grinding roller 1, 2 via a rotary bearing 24. Seen from above, the stop body 23 used here has a rectangular cross section and has lateral slide bearings 25 (e.g. made of Teflon or nylon).
  • FIG. 5 The three-dimensional arrangement of the stop bars 21 and the stop body is schematically illustrated again in FIG. 5. In this figure, details that are insignificant in this context have been omitted. It shows a view of the drive table 20 on which the stop bars 21 run.
  • a deflection bearing 26 is also fastened between the stop beams, which forms a radial stop for the stop body 23 and deflects it out of the mill axis 27 in the rest position. This ensures that the mill starts up safely.
  • the stop body 23 will move outward in the guideway along arrow A and move slightly upward until the grinding roller touches the grinding ring surface.
  • the coupling between drive and grinding roller must be such that it is a tangential force component in the direction of rotation of the drive table is able to transfer, but does not hinder a deflection of the grinding roller to the side and upwards.
  • a rope rope can also be used, for example, as a coupling between table 20 and grinding roller. Chain arrangement can be used.
  • Other couplings, such as oil coupling or magnetic coupling, are conceivable. It is important that the transmission of a force component tangential to the mill axis 27 is possible.
  • Figure 5 also indicates the course of a compressed air line 28. This is part of an overpressure system by means of which dust is kept away from the bearings.
  • the compressed air is for this purpose as shown in Figure 2 via a hose 29 to the gearbox. the clutch 18 out. From there it reaches openings 32 on the drive table via openings 30 and an annular channel 31. From there it is guided via the flexible hose 28 into the space 33 below the grinding roller 1, 2, from where it can reach the bearings 9 and 24. In this way, all sensitive parts of the mill are under pressure and the ingress of dust can be prevented.
  • the mill's pressurized system is isolated by suitable seals of known type.
  • FIG. 6 shows an alternative embodiment of the coupling between the drive and grinding roller.
  • the grinding roller (not shown) and the drive table 20 are connected here via an articulated rod 40.
  • the rod 40 is fastened to the pivot bearing 24 'via a hinge joint 41 with a horizontal tilt axis.
  • This pivot bearing replaces the bearing 24 in FIG. 2 and allows the grinding roller to rotate relative to the rod 40.
  • the rod 40 is fastened to a lower pivot bearing 43 via a second hinge joint 42.
  • This pivot bearing 43 is connected to the drive table 20.
  • the pivot bearing 43 allows the rod 40 to follow radial movements of the center of the grinding roller.
  • the hinges 41 and 42 allow the rod 40 to compensate for vertical movements of the grinding roller.
  • the regrind is introduced through the opening 15, lands on the grinding roller holder 10 and is laterally thrown off by this. Lateral material cones 35 form and the material falls into the gap 36 between the grinding roller and grinding ring.
  • the rotational speed of the grinding roller is chosen so high that material falling through the gap 36 is reliably grasped and ground in one circulation of the grinding roller, i.e. that the minimum fall time through the gap is greater than the round trip time of the grinding roller.
  • the ground material then falls through a cylindrical space 37 outside the motor and leaves this space through floor openings (not shown).
  • FIG. 7 A second embodiment of the mill results from FIG. 7.
  • This mill has the same basic structure as that according to FIG. 1 with grinding roller 1, 2, grinding ring 3, 4, drive 7 and coupling 8 between drive 7 and grinding roller 1, 2.
  • Purpose of the coupling 8 in turn lies in exerting a force on the grinding roller 1, 2 which is tangential with respect to the grinding ring surface and perpendicular to the grinding ring axis, so that it is driven to rotate in the grinding ring.
  • the grinding roller 1, 2 is not suspended directly on the mill frame. Rather, it rests rotatably about a bearing 50 via an eccentric member 55 on a round eccentric plate 51.
  • the eccentric plate 51 in turn lies on a table 52.
  • the eccentric plate 51 is held laterally by guides 53 and can rotate about the eccentric axis 54.
  • the table 52 rests with an axle piece 56 in a pivot bearing 57, via which it is connected to a holder 58.
  • This holder 58 comprises radial struts 59 and a cylindrical jacket 60.
  • the cylindrical jacket 60 is fixedly attached to the grinding ring 3, 4.
  • the axis piece 56 of the table 52 is also connected to the drive 7 via a cardan shaft 70.
  • the drive 7 can be flanged directly to the holder 58.
  • a distribution table 62 is provided above the grinding roller 1, 2 and is connected via radial plates 63 to a frustoconical holder 64 which also carries the filler neck 65. Bracket 64 forms a wall that prevents material from falling over the outer edge of ring 3, 4.
  • the motor 7 drives the drive table 52 via the cardan shaft 70. As a result, it rotates about the central axis of the grinding ring 3, 4.
  • the eccentric plate 51 thus runs eccentrically around the central axis. It will orient itself in its guides 53 in such a way that the eccentric member 55 is guided so far away from the central axis that the grinding roller 1, 2 comes into contact with the grinding ring 3, 4. Due to the centrifugal action, the grinding roller 1, 2 is pressed against the grinding ring 3, 4 and rolls on it.
  • FIG. 1 A third and currently preferred embodiment of the mill is shown schematically in FIG.
  • This mill also has the same basic structure as that according to FIGS. 1 and 7 with grinding roller 1, 2, grinding ring 3, 4, drive 7 and coupling 8 between drive 7 and grinding roller 1, 2.
  • the purpose of the coupling 8 is, in turn, one with respect to the The grinding ring surface exerts tangential force on the grinding roller 1, 2 so that it is driven to rotate in the grinding ring.
  • the grinding roller 1, 2 is attached to the grinding ring 3, 4 here.
  • the grinding roller has a central rotary bearing 50, via which it is connected to the roller table 52 '.
  • Roller table 52 'and grinding roller 1, 2 can be rotated coaxially against one another.
  • the cardan shafts 75 are mounted on support elements 76 which are firmly connected to the outer part 4 of the grinding ring. So make up Grinding roller 1, 2 and grinding ring again a dynamic unit with a common gimbal 5.
  • the motor 7 is firmly connected to the mill frame.
  • a motor table 76 rests on the motor axis 19. Between the motor table 76 and the roller table 52 'there is a cable coupling 77-79. This comprises a first anchoring pin 77, which is eccentrically attached to the motor table, a second anchoring pin 78, which is attached to the roller table, and a movable one Rope 79 connected to both anchoring pins.
  • the mutual position of the anchoring pins and the length of the rope are dimensioned such that the roller table 52 'is pulled along a circular path around the mill axis by the rotary movement of the motor table 76. The radius of this circular path is so large that the grinding roller 1, 2 comes into safe contact with the grinding ring 3, 4 and can roll on it.
  • one of the couplings according to FIG. 5 or 6 can also be used.
  • the motor 7 can also be arranged outside the axis of the mill by moving the motor 7 and the coupling 77-79 in parallel.
  • the rotational frequency of the grinding roller center of gravity in the grinding ring remains constant, since it corresponds to the rotational frequency of the drive table.
  • the pressure of the roller on the ring changes only slightly depending on the wear of the roller and ring.
  • the speed of the drive is 750 revolutions per minute.
  • the rotational frequency F of the grinding roller center of gravity in the grinding ring is equal to the rotational frequency of the drive table, respectively.
  • Drive The rotational frequency W of the grinding roller around itself is however not the same as F resp. f, but strongly depends on the ratio r / R. If r / R goes towards one, F / W becomes very big. However, this does not interfere with practical operation.
  • the rotational frequency F of the roller center of gravity is strongly dependent on the wear of the roller and the ring and is much larger than the drive frequency f.
  • these known mills must therefore be provided with a controllable drive and a large reduction, which brings considerable problems and costs with larger plants, such as those used in cement production. These problems do not occur in the mill according to the invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)
  • Shovels (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
  • Polarising Elements (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
EP94119699A 1993-12-17 1994-12-14 Broyeur à rouleau Expired - Lifetime EP0658379B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH378893 1993-12-17
CH378893 1993-12-17
CH3788/93 1993-12-17

Publications (2)

Publication Number Publication Date
EP0658379A1 true EP0658379A1 (fr) 1995-06-21
EP0658379B1 EP0658379B1 (fr) 1999-08-04

Family

ID=4263488

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94119699A Expired - Lifetime EP0658379B1 (fr) 1993-12-17 1994-12-14 Broyeur à rouleau

Country Status (7)

Country Link
US (1) US5524840A (fr)
EP (1) EP0658379B1 (fr)
AT (1) ATE182811T1 (fr)
AU (1) AU677112B2 (fr)
CA (1) CA2138074A1 (fr)
DE (1) DE59408578D1 (fr)
ZA (1) ZA949977B (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0970748A1 (fr) * 1998-07-10 2000-01-12 Martin H. Gygi Broyeur
WO2010086298A3 (fr) * 2009-01-27 2010-10-14 Neuman & Esser Gmbh Mahl- Und Sichtsysteme Broyeur à pendules
CN103263959A (zh) * 2013-05-06 2013-08-28 湖南中宏重型机器有限公司 减振式立式环碾磨机

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AUPQ341699A0 (en) * 1999-10-14 1999-11-04 Eastbank Holdings Pty Ltd Grinding head
DE102005010069A1 (de) * 2005-03-03 2006-09-07 Polysius Ag Vertikalmühle
PL2295147T3 (pl) * 2009-09-10 2012-06-29 Flender Gmbh Układ napędowy młyna
EP2380666B1 (fr) * 2010-04-19 2013-04-17 Siemens Aktiengesellschaft Système d'entraînement de moulin
US9662657B2 (en) * 2014-01-21 2017-05-30 Mannarsamy Balasubramanian Multi-purpose food grinding machine
CN108422313A (zh) * 2018-04-19 2018-08-21 苏州圣亚精密机械有限公司 一种具有固定装置的研磨机

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2303387A (en) * 1939-02-25 1942-12-01 Beardsley & Piper Co Mulling apparatus
WO1987006500A1 (fr) * 1986-05-02 1987-11-05 Ab Scaniainventor Dispositif de meulage

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR349886A (fr) * 1904-04-30 1905-07-06 Charles Morel Broyeur
US1603639A (en) * 1921-12-01 1926-10-19 James G Berryhill Pulverizing apparatus
US3888426A (en) * 1973-08-06 1975-06-10 Joe R Urschel Machine and method for comminuting products
SU622491A1 (ru) * 1975-04-28 1978-09-05 Yagupov Aleksandr V Центробежна мельница
ZA836570B (en) * 1982-09-06 1984-04-25 Martin H Gygi Milling process and roller mill
CH658801A5 (de) * 1982-10-29 1986-12-15 Maag Zahnraeder & Maschinen Ag Walzenschuesselmuehle.
DE3741611A1 (de) * 1987-12-09 1989-06-22 Babcock Werke Ag Walzenschuesselmuehle

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2303387A (en) * 1939-02-25 1942-12-01 Beardsley & Piper Co Mulling apparatus
WO1987006500A1 (fr) * 1986-05-02 1987-11-05 Ab Scaniainventor Dispositif de meulage

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0970748A1 (fr) * 1998-07-10 2000-01-12 Martin H. Gygi Broyeur
WO2010086298A3 (fr) * 2009-01-27 2010-10-14 Neuman & Esser Gmbh Mahl- Und Sichtsysteme Broyeur à pendules
CN102300643A (zh) * 2009-01-27 2011-12-28 诺尔曼艾索公司 悬辊式磨碎机
US8590821B2 (en) 2009-01-27 2013-11-26 Neuman & Esser GmbH Mahl—und Sichtsysteme Pendulum mill
CN103263959A (zh) * 2013-05-06 2013-08-28 湖南中宏重型机器有限公司 减振式立式环碾磨机

Also Published As

Publication number Publication date
ATE182811T1 (de) 1999-08-15
US5524840A (en) 1996-06-11
AU8043994A (en) 1995-06-22
AU677112B2 (en) 1997-04-10
CA2138074A1 (fr) 1995-06-18
EP0658379B1 (fr) 1999-08-04
DE59408578D1 (de) 1999-09-09
ZA949977B (en) 1995-08-22

Similar Documents

Publication Publication Date Title
DE498701C (de) Reibkugelwechselgetriebe
DE3215923C2 (fr)
CH118064A (de) Reibungswechselgetriebe.
DE3145655C1 (de) Schuesselmuehlengetriebe
EP1668263B1 (fr) Ensemble support rotatif d'un corps rotatif
EP0658379B1 (fr) Broyeur à rouleau
EP0294609A2 (fr) Broyeur à rouleaux
DE3891339C2 (de) Kreiselbrecher
DE3242346A1 (de) Ruehrvorrichtung fuer papierstoff
DE3512887A1 (de) Konus-schneckenmischer mit sphaerischem dichtungskoerper in der bodenoeffnung
DE1163121B (de) Kugelquetschmuehle
EP1138391A1 (fr) Dispositif de broyage, pulvérisation et dispersion de matière à broyer fluide
EP0573953B1 (fr) Dispositif d'enroulage
DE4212773A1 (de) Vorrichtung zur gleichmaessigen verteilung von pulverfoermigen materialien
DE2030620C3 (de) Vorrichtung zur Sicherung einer Schleifscheibe gegen Überschreiten ihrer maximal zulässigen Umfangsgeschwindigkeit
DE3231526C2 (de) Windsichter
DE3306745A1 (de) Lager fuer drehtrommeln
DE4333518A1 (de) Kurvengurtförderer
DE102008009805B4 (de) Verfahren und Vorrichtung zur zerstörungsfreien Prüfung eines rotationssymmetrischen Bauteils
DE102005057228A1 (de) Umlaufrührvorrichtung
DE3203085A1 (de) Gleichlaufgelenk
DE29910033U1 (de) Getriebe mit Rollelementen
DE2052768B2 (de) Einrichtung zum abziehen und weitergeben von draht in drahtziehmaschinen
AT391526B (de) Antriebslagerung zur aufnahme von vertikallasten, insbesondere bei federrollenmuehlengetrieben
DE958823C (de) Drahthaspel mit einer durch eine Festhalteeinrichtung am Drehen gehinderten Aufwickeltrommel

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 CH DE FR GB LI SE

17P Request for examination filed

Effective date: 19951209

17Q First examination report despatched

Effective date: 19980423

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

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 LI SE

REF Corresponds to:

Ref document number: 182811

Country of ref document: AT

Date of ref document: 19990815

Kind code of ref document: T

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: E. BLUM & CO. PATENTANWAELTE

Ref country code: CH

Ref legal event code: EP

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

Effective date: 19990805

REF Corresponds to:

Ref document number: 59408578

Country of ref document: DE

Date of ref document: 19990909

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

Ref country code: CH

Payment date: 20011109

Year of fee payment: 8

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

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 NON-PAYMENT OF DUE FEES

Effective date: 20021231

Ref country code: CH

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

Effective date: 20021231

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

Ref country code: GB

Payment date: 20030409

Year of fee payment: 9

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

Ref country code: SE

Payment date: 20030414

Year of fee payment: 9

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

Ref country code: FR

Payment date: 20030428

Year of fee payment: 9

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

Ref country code: DE

Payment date: 20030429

Year of fee payment: 9

Ref country code: AT

Payment date: 20030429

Year of fee payment: 9

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: GB

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

Effective date: 20031214

Ref country code: AT

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

Effective date: 20031214

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: 20031215

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: 20040701

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

Effective date: 20031214

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: 20040831

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST