EP1483107B1 - Compacting press for bulk materials - Google Patents
Compacting press for bulk materials Download PDFInfo
- Publication number
- EP1483107B1 EP1483107B1 EP03711922A EP03711922A EP1483107B1 EP 1483107 B1 EP1483107 B1 EP 1483107B1 EP 03711922 A EP03711922 A EP 03711922A EP 03711922 A EP03711922 A EP 03711922A EP 1483107 B1 EP1483107 B1 EP 1483107B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- roller
- rollers
- drives
- compacting press
- bulk materials
- 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
Links
- 239000000463 material Substances 0.000 title claims abstract description 7
- 239000013590 bulk material Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/04—Frames; Guides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B3/00—Presses characterised by the use of rotary pressing members, e.g. rollers, rings, discs
- B30B3/04—Presses characterised by the use of rotary pressing members, e.g. rollers, rings, discs co-operating with one another, e.g. with co-operating cones
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
- B30B11/18—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using profiled rollers
Definitions
- the invention relates to a compacting for powdery to granular bulk materials with two arranged in a plane, counter-rotating rollers mounted with bearing blocks in a roll stand and of which at least one roller is designed as a Loswalze and resiliently supported on power generators and each at each of their two Ends has its own electric motor drive, the drives of the Loswalze are carried by her.
- Compacting presses of this type are known ( DE 37 31 934 A1 ).
- the supply of bulk material into the nip usually takes place from a hopper via feed screws, which already build up a certain pressure in the bulk material.
- the rollers are driven from one side via a reducing transfer case by an electric motor. Since the distribution of the material fed into the nip over the roll length is not uniform, but a substantially constant pressure over the length of the rollers is desired, at least one roller is designed as a floating roller and yieldingly supported pendulum on power generators.
- the invention has for its object to provide a compacting for bulk materials of the type mentioned, the assembly and disassembly requires little effort.
- the compacting press according to the invention is very inexpensive to manufacture because conventional components and expensive special gearboxes with complex drive shafts are not required for the drive. Since the Drive is carried out from both roll ends, the drives themselves can be dimensioned comparatively small. This also means cost advantages over unilaterally correspondingly larger drives. Since at least the drives of the Loswalze are carried by the Loswalze, results in a constant operating load regardless of the position of the Loswalze. This means that in operation the pressing pressure over the roller length is independent of the drives and the roller position. The pressing pressure depends solely on the force generators. Since at least the Loswalze carries their drives, the conditions for easy assembly are given, because the rollers can be removed after opening the upper part with their electric motor drives up.
- the two rolls must be driven with the same torque at the nip and usually with the same peripheral speed. This can be seen in single drives compared to a
- the compacting press shown in the drawing for powdery to granular bulk materials has two vertically stacked, equal-sized rollers 1,2, which formed with chocks as bearing blocks 3,4,5,6 in corresponding windows 7,8,9,10 a two-piece roll stand 11 are stored.
- the upper part 11a of the roll stand 11 is hinged at its lower part 11b via a pivot bearing 12 in the direction of a double arrow P 1 and can be locked by means of a locking bolt 13 for the press operation.
- the lower roller 2 is mounted with your bearing blocks (chocks) 5.6 in the associated windows 9,10 of the lower part 11b of the roll stand 11 as a fixed roller.
- the bearing blocks 5.6 are held by detachable inserts 14,15.
- the bearing blocks 3.4 (chocks) of the upper roller 1 are supported on trained as a hydraulic cylinder piston assembly force generators 16,17, so that the upper roller in the vertical direction, as double arrow P 2 suggests, is movable and thus a Loswalze.
- Both rollers 1,2 are connected at their two ends with electromotive drives.
- the lower roller 2 with its two stub shafts 2 a, 2 b via reduction gears 19 a, 19 b connected to electric motors 18 a, 18 b.
- the reduction gear 19a, 19b stand independently on a bottom plate 20, on which also the roll stand 11 stands.
- the top roller 1, so the Loswalze, carries at its shaft ends 1a, 1b reduction gear 21a, 21b and coupled thereto electric motors 22a, 22b.
- the required torque support of these electromotive drives 21a, 22a, 21b, 22b takes place via the bearing blocks (chocks) 3, 4 guided in the windows 7, 8.
- the disassembly and assembly of the rollers 1, 2 takes place in a very simple manner.
- the upper part 11a can be opened.
- the upper roller 1 can be removed together with their electric motor drives 21a, 22a, 21b, 22b, while the lower roller 2 only after loosening the inserts 14, 15 and uncoupling from their stationary mounted electric motor drives 18a, 19a, 18b, 19b can be upgraded upwards, unless their stationary position on the bottom plate 20 is dismantled.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Press Drives And Press Lines (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
Description
Die Erfindung betrifft eine Kompaktierpresse für pulverförmige bis körnige Schüttgüter mit zwei in einer Ebene angeordneten, gegenläufig angetriebenen Walzen, die mit Lagerböcken in einem Walzenständer gelagert und von denen mindestens eine Walze als Loswalze ausgebildet und an Krafterzeugern nachgiebig abgestützt ist und die jeweils an jedem ihrer beiden Enden einen eigenen elektromotorischen Antrieb aufweist, wobei die Antriebe der Loswalze von ihr getragen sind.The invention relates to a compacting for powdery to granular bulk materials with two arranged in a plane, counter-rotating rollers mounted with bearing blocks in a roll stand and of which at least one roller is designed as a Loswalze and resiliently supported on power generators and each at each of their two Ends has its own electric motor drive, the drives of the Loswalze are carried by her.
Kompaktierpressen dieser Art sind bekannt (
Sowohl bei der vorbeschriebenen bekannten Kompaktierpresse als auch einer weiteren bekannten anderen Kompaktierpresse (
Der Erfindung liegt die Aufgabe zugrunde, eine Kompaktierpresse für Schüttgüter der eingangs genannten Art zu schaffen, deren Montage und Demontage einen geringen Aufwand erfordert.The invention has for its object to provide a compacting for bulk materials of the type mentioned, the assembly and disassembly requires little effort.
Diese Aufgabe wird mit einer Kompaktierpresse der eingangs genannten Art gelöst, bei der der Walzenständer bei vertikaler Aufstellung aus zwei getrennten Teilen, und zwar einem Unterteil mit der einen Walze und einem am Unterteil über ein Schwenklager gelagerten und verriegelbaren Oberteil mit der Loswalze besteht, wobei das Oberteil über das Schwenklager aufklappbar ist.This object is achieved with a compacting press of the type mentioned, in which the roll stand in a vertical position of two separate parts, namely a lower part with a roller and a lower part via a pivot bearing mounted and lockable upper part with the Loswalze, the Upper part is hinged over the pivot bearing.
Die erfindungsgemäße Kompaktierpresse ist im Herstellungsaufwand sehr günstig, weil für den Antrieb herkömmliche Komponenten und keine teuren Spezialgetriebe mit aufwendigen Gelenkwellen benötigt werden. Da der Antrieb von beiden Walzenenden aus erfolgt, können die Antriebe selbst vergleichsweise klein dimensioniert sein. Auch das bedeutet gegenüber einseitigen entsprechend größeren Antrieben Kostenvorteile. Da zumindest die Antriebe der Loswalze von der Loswalze getragen sind, ergibt sich eine in Betrieb konstante Traglast unabhängig von der Stellung der Loswalze. Das bedeutet, dass im Betrieb der Pressdruck über die Walzenlänge unabhängig von den Antrieben und der Walzenstellung ist. Der Pressdruck hängt allein von den Krafterzeugern ab. Da zumindest die Loswalze ihre Antriebe trägt, sind die Voraussetzungen für eine leichte Montage gegeben, denn die Walzen können nach Aufklappen des Oberteils mit ihren elektromotorischen Antrieben nach oben ausgebaut werden.The compacting press according to the invention is very inexpensive to manufacture because conventional components and expensive special gearboxes with complex drive shafts are not required for the drive. Since the Drive is carried out from both roll ends, the drives themselves can be dimensioned comparatively small. This also means cost advantages over unilaterally correspondingly larger drives. Since at least the drives of the Loswalze are carried by the Loswalze, results in a constant operating load regardless of the position of the Loswalze. This means that in operation the pressing pressure over the roller length is independent of the drives and the roller position. The pressing pressure depends solely on the force generators. Since at least the Loswalze carries their drives, the conditions for easy assembly are given, because the rollers can be removed after opening the upper part with their electric motor drives up.
Um bei einer Zweiwalzenkompaktierpresse die ohne individuelle Antriebe ausgebildeten Walzen mitsamt ihren Lagerböcken möglichst einfach und schnell montieren und demontieren zu können, ist eine andere Lösung bekannt (
Es versteht sich, daß bei der erfingungsgemäßen Kompaktierpresse die beiden Walzen mit gleichem Drehmoment am Walzenspalt und in der Regel auch mit gleicher Umfangsgeschwindigkeit angetrieben werden müssen. Dies lässt sich bei Einzelantrieben im Vergleich zu einemIt is understood that in the compacting press according to the invention, the two rolls must be driven with the same torque at the nip and usually with the same peripheral speed. This can be seen in single drives compared to a
Verteilergetriebe wesentlich leichter und weniger aufwendig dadurch verwirklichen, daß die Elektromotore der Antriebe einer jeden Walze über eine elektrische Welle miteinander verbunden sind. Dies lässt sich sowohl auf jede Walze bezogen verwirklichen als auch auf die Antriebe der Walzen untereinander.Transfer cases much easier and less expensive thereby realize that the electric motors of the drives of each roller are connected to each other via an electric shaft. This can be realized in relation to each roller as well as to the drives of the rollers with each other.
Im folgenden wird die Erfindung anhand einer ein Ausführungsbeispiel darstellenden Zeichnung näher erläutert. Im einzelnen zeigen
- Figur 1
- eine Kompaktierpresse in Vorderansicht,
Figur 2- die Kompaktierpresse gemäß Figur 1 in Aufsicht und
Figur 3- die Kompaktierpresse gemäß Figur 1 in Seitenansicht.
- FIG. 1
- a compacting press in front view,
- FIG. 2
- the Kompaktierpresse according to Figure 1 in supervision and
- FIG. 3
- the Kompaktierpresse according to Figure 1 in side view.
Die in der Zeichnung dargestellte Kompaktierpresse für pulverförmige bis körnige Schüttgüter weist zwei vertikal übereinander angeordnete, gleichformatige Walzen 1,2 auf, die mit als Einbaustücke ausgebildeten Lagerböcken 3,4,5,6 in entsprechenden Fenstern 7,8,9,10 eines zweiteiligen Walzenständers 11 gelagert sind. Das Oberteil 11a des Walzenständers 11 ist an dessen Unterteil 11b über ein Schwenklager 12 in Richtung eines Doppelpfeils P1 aufklappbar gelagert und mittels eines Verriegelungsbolzens 13 für den Pressenbetrieb verriegelbar.The compacting press shown in the drawing for powdery to granular bulk materials has two vertically stacked, equal-sized
Die Unterwalze 2 ist mit Ihren Lagerböcken (Einbaustücken) 5,6 in den zugehörigen Fenstern 9,10 des Unterteils 11b des Walzenständers 11 als Festwalze gelagert. Die Lagerböcke 5,6 werden dabei von lösbaren Einsätzen 14,15 gehalten. Die Lagerböcke 3,4 (Einbaustücke) der Oberwalze 1 sind an als hydraulische Zylinderkolbenanordnung ausgebildeten Krafterzeugern 16,17 abgestützt, so daß die Oberwalze in vertikaler Richtung, wie Doppelpfeil P2 andeutet, beweglich und damit eine Loswalze ist. Durch doppelseitige Beaufschlagung der Oberwalze durch die Krafterzeuger 16,17 ist die Möglichkeit der Einstellung des Walzenspaltes gegeben.The
Beide Walzen 1,2 sind jeweils an ihren beiden Enden mit elektromotorischen Antrieben verbunden. So ist die Unterwalze 2 mit ihren beiden Wellenstümpfen 2a, 2b über Untersetzungsgetriebe 19a, 19b mit Elektromotoren 18a, 18b verbunden. Die Untersetzungsgetriebe 19a, 19b stehen selbständig auf einer Bodenplatte 20, auf der auch der Walzenständer 11 steht.Both
Die Oberwalze 1, also die Loswalze, trägt an ihren Wellenenden 1a, 1b Untersetzungsgetriebe 21a, 21b und daran angekoppelte Elektromotore 22a, 22b. Die erforderliche Drehmomentabstützung dieser elektromotorischen Antriebe 21a, 22a, 21b, 22b erfolgt über die in den Fenstern 7,8 geführten Lagerböcke (Einbaustücke) 3,4.The top roller 1, so the Loswalze, carries at its
Um die Walzen 1,2 an ihren beiden Enden mit gleichem Drehmoment anzutreiben, sind sie über eine elektrische Welle W miteinander verbunden, wie in Figur 1 schematisch angedeutet ist.To drive the
Die Demontage und Montage der Walzen 1, 2 erfolgt auf denkbar einfache Art und Weise. Nach Lösen des Verriegelungsbolzens 13 kann das Oberteil 11a aufgeklappt werden. Nach Abkuppeln der Krafterzeuger 16, 17 kann die Oberwalze 1 gemeinsam mit ihren elektromotorischen Antrieben 21a, 22a, 21b, 22b ausgebaut werden, während die Unterwalze 2 erst nach Lösen der Einsätze 14, 15 und Abkuppeln von ihren stationär aufgestellten elektromotorischen Antrieben 18a, 19a, 18b, 19b nach oben ausgebaut werden kann, es sei denn, daß deren stationäre Aufstellung auf der Bodenplatte 20 demontiert wird.The disassembly and assembly of the
Claims (3)
- A compacting press for powdery to granular bulk materials including two rollers (1, 2) driven so as to rotate in opposite direction and arranged in one plane, which are mounted on a roller housing (11) with bearing blocks (3, 4, 5, 6), and of which at least one roller (1) is constructed as a loose roller and is flexibly supported by force generators (16, 17), each roller having its own electric motor drives (18a, 18b, 19a, 19b, 21a, 21b, 22a, 22b) at both ends (1a, 1b, 2a, 2b) thereof, wherein the drives (21a, 21b, 22a, 22b) of the loose roller (1) are supported by the loose roller,
characterised in that
the roller housing (11) has a vertical design and consists of two separate parts (11a, 11b), namely a bottom part (11b) having the one roller (2), and a top part (11a) which has the loose roller (1) and is supported in lockable manner on the bottom part (11b) via a swivel bearing (13), wherein the top part (11a) is able to be swivelled out via the swivel bearing (13). - The compacting press as recited in claim 1,
characterised in that
electric motors (18a, 18b, 22a, 22b) of the drives (18a, 18b, 19a, 19b, 21a, 21b, 22a, 22b) of each roller (1, 2) are interconnected via an electric shaft (W). - The compacting press as recited in claim 1 or 2,
characterised in that
the electric motors (18a, 18b, 22a, 22b) of the drives (18a, 18b, 19a, 19b, 21a, 21b, 22a, 22b) of all rollers (1, 2) are interconnected via an electric shaft (W).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10210307 | 2002-03-08 | ||
| DE10210307A DE10210307C1 (en) | 2002-03-08 | 2002-03-08 | Compacting press for bulk goods |
| PCT/EP2003/002212 WO2003076172A1 (en) | 2002-03-08 | 2003-03-05 | Compacting press for bulk materials |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1483107A1 EP1483107A1 (en) | 2004-12-08 |
| EP1483107B1 true EP1483107B1 (en) | 2007-10-10 |
Family
ID=27797615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP03711922A Expired - Lifetime EP1483107B1 (en) | 2002-03-08 | 2003-03-05 | Compacting press for bulk materials |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US7398729B2 (en) |
| EP (1) | EP1483107B1 (en) |
| JP (1) | JP2005528217A (en) |
| KR (1) | KR20050004798A (en) |
| CN (1) | CN100519163C (en) |
| AU (1) | AU2003218687A1 (en) |
| CA (1) | CA2478260C (en) |
| DE (2) | DE10210307C1 (en) |
| ES (1) | ES2297136T3 (en) |
| RU (1) | RU2326000C2 (en) |
| WO (1) | WO2003076172A1 (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2721636Y (en) * | 2004-09-07 | 2005-08-31 | 何亚民 | Roller press with assembled frame |
| KR20090082405A (en) * | 2006-10-20 | 2009-07-30 | 지엘브이 캐나다 인크. | Adjustable roller device for straightening material |
| US20120180587A1 (en) * | 2011-01-18 | 2012-07-19 | William Bruce Morrow | Multi stage system for modular transmissions |
| DE102014005757B4 (en) * | 2014-04-17 | 2019-05-23 | Khd Humboldt Wedag Gmbh | Roller press with symmetrical drive |
| CN107116631A (en) * | 2017-06-13 | 2017-09-01 | 芜湖桑健电子科技有限公司 | Timber is to roll-in trigger |
| CN107053381A (en) * | 2017-06-13 | 2017-08-18 | 芜湖桑健电子科技有限公司 | Timber is to roll-in trigger |
| CN112754057A (en) * | 2021-01-20 | 2021-05-07 | 安徽精高自动化有限公司 | Tobacco shred loosening device |
| EP4658466A1 (en) | 2023-02-01 | 2025-12-10 | SunCoal Industries GmbH | Dry-granulation of particulate carbon material and agglomerates produced thereby |
| DE102024110646A1 (en) | 2024-04-16 | 2025-10-16 | Maschinenfabrik Köppern Gmbh & Co. Kg | Briquetting press and method for operating a briquetting press |
Family Cites Families (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3484326A (en) * | 1964-06-02 | 1969-12-16 | Electrographic Corp | Electrotype method and apparatus |
| US3765173A (en) * | 1971-09-28 | 1973-10-16 | K G Industries | Hydraulic roll drive means for briquetters and compactors |
| DE2221785C2 (en) * | 1972-05-04 | 1984-06-14 | Horst 7101 Obergruppenbach Liebert | Roller press for compacting, pelletizing or briquetting |
| DE2305626C3 (en) * | 1973-02-06 | 1978-03-09 | Maschinenfabrik Koeppern Gmbh & Co Kg, 4320 Hattingen | Two-roll press with rolls next to each other |
| SU955478A1 (en) | 1981-01-23 | 1982-08-30 | Ждановский металлургический институт | Device for matching reversing mill rolls and roller table speed |
| JPS5891890A (en) * | 1981-11-24 | 1983-05-31 | 神崎製紙株式会社 | Super calender |
| DE3420409A1 (en) * | 1984-06-01 | 1985-12-05 | ELTI Apparatebau und Elektronik GmbH, 6106 Erzhausen | LAMINATION STATION |
| JPH0324079Y2 (en) * | 1985-10-02 | 1991-05-24 | ||
| DE3731934A1 (en) * | 1987-09-23 | 1989-04-13 | Kloeckner Humboldt Deutz Ag | TWO-ROLLING MACHINE LIKE A ROLLING PRESS |
| SU1671467A1 (en) * | 1988-08-04 | 1991-08-23 | Колпинское отделение Всесоюзного научно-исследовательского и проектно-конструкторского института металлургического машиностроения им.А.И.Целикова | Briquetting roll press |
| DE4141754A1 (en) * | 1991-12-14 | 1993-06-17 | Thaelmann Schwermaschbau Veb | Low strain roll stand for rod and section lines - with prestressed housings and pivotable roll chocks |
| DE9206152U1 (en) * | 1992-05-12 | 1992-07-16 | J.M. Voith Gmbh, 7920 Heidenheim | Machine frame |
| CN1085468A (en) * | 1993-01-08 | 1994-04-20 | 陈茂林 | Energy-saving pulverizing mill |
| AT399355B (en) * | 1993-05-28 | 1995-04-25 | Andritz Patentverwaltung | DEVICE FOR DRAINING FIBER-LIQUID MIXTURES |
| CN2234308Y (en) * | 1995-08-18 | 1996-09-04 | 吴俊� | Flour mill |
| JPH1094830A (en) * | 1996-09-25 | 1998-04-14 | Orii Corp | Leveler feeder |
| RU2111805C1 (en) * | 1997-06-09 | 1998-05-27 | Акционерное общество "Электростальский завод тяжелого машиностроения" | Three-high stand of helical rolling mill |
| DE10018271A1 (en) * | 2000-04-13 | 2001-10-18 | Kloeckner Humboldt Wedag | Pressing machine for granular materials has swinging frame with lower pivot point lying perpendicularly to axes of rolls so that after swinging away of frame both rolls can be freely withdrawn upwards from machine frame |
-
2002
- 2002-03-08 DE DE10210307A patent/DE10210307C1/en not_active Expired - Fee Related
-
2003
- 2003-03-05 WO PCT/EP2003/002212 patent/WO2003076172A1/en not_active Ceased
- 2003-03-05 KR KR10-2004-7014046A patent/KR20050004798A/en not_active Ceased
- 2003-03-05 CA CA002478260A patent/CA2478260C/en not_active Expired - Lifetime
- 2003-03-05 EP EP03711922A patent/EP1483107B1/en not_active Expired - Lifetime
- 2003-03-05 AU AU2003218687A patent/AU2003218687A1/en not_active Abandoned
- 2003-03-05 ES ES03711922T patent/ES2297136T3/en not_active Expired - Lifetime
- 2003-03-05 US US10/506,726 patent/US7398729B2/en not_active Expired - Lifetime
- 2003-03-05 JP JP2003574421A patent/JP2005528217A/en active Pending
- 2003-03-05 RU RU2004129760/02A patent/RU2326000C2/en not_active IP Right Cessation
- 2003-03-05 CN CNB038088266A patent/CN100519163C/en not_active Expired - Fee Related
- 2003-03-05 DE DE50308348T patent/DE50308348D1/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| ES2297136T3 (en) | 2008-05-01 |
| RU2004129760A (en) | 2005-05-10 |
| CA2478260C (en) | 2010-01-19 |
| DE10210307C1 (en) | 2003-10-23 |
| US7398729B2 (en) | 2008-07-15 |
| CN1646301A (en) | 2005-07-27 |
| KR20050004798A (en) | 2005-01-12 |
| US20050139095A1 (en) | 2005-06-30 |
| HK1078532A1 (en) | 2006-03-17 |
| CN100519163C (en) | 2009-07-29 |
| RU2326000C2 (en) | 2008-06-10 |
| CA2478260A1 (en) | 2003-09-18 |
| AU2003218687A1 (en) | 2003-09-22 |
| JP2005528217A (en) | 2005-09-22 |
| WO2003076172A1 (en) | 2003-09-18 |
| DE50308348D1 (en) | 2007-11-22 |
| EP1483107A1 (en) | 2004-12-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| 17P | Request for examination filed |
Effective date: 20040907 |
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