EP0924068B1 - Einrichtung zur Vermeidung von Kondenswasserbildung in Druckmaschinen - Google Patents
Einrichtung zur Vermeidung von Kondenswasserbildung in Druckmaschinen Download PDFInfo
- Publication number
- EP0924068B1 EP0924068B1 EP98121526A EP98121526A EP0924068B1 EP 0924068 B1 EP0924068 B1 EP 0924068B1 EP 98121526 A EP98121526 A EP 98121526A EP 98121526 A EP98121526 A EP 98121526A EP 0924068 B1 EP0924068 B1 EP 0924068B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- printing unit
- roller
- unit component
- printing
- partial surface
- 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
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F13/00—Common details of rotary presses or machines
- B41F13/08—Cylinders
- B41F13/42—Guards or covers, e.g. for preventing ingress or egress of foreign matter
Definitions
- the present invention relates to a device for avoiding Condensation in printing machines according to the preamble of claim 1.
- Condensed water can e.g. B. on the surface of a protective shield in the form of Droplets occur that can collect in drops, which then either on the Surface of the material web to be printed or fall into the printing unit itself and Cause printing defects and other undesirable conditions. Condensation under the Material web can also cause printing defects, for example if there are droplets fall onto the surfaces of jack rollers or the like of a lower printing unit.
- condensation water dripping onto the web can cause printing errors cause and condensation on a roller, especially on dampening rollers destabilize the offset printing process.
- EP 0 739 718 A2 describes a device for preventing precipitation in Machines for processing web-like material are described.
- the device comprises a component, for example a nip guard, which is nearby at least one printing unit cylinder is arranged, and via a feed section and a recirculation section with a reservoir containing a heating medium connected is.
- the heating medium can be in the reservoir through a heat exchanger tempered, via a pump device at a uniform temperature level held, fed to the component via the feed section and from the component via the Recirculation section can be led back to the reservoir.
- the heated medium is supplied to the component at a temperature level kept above the dew point of the ambient air and thus a condensation of Air humidity on the surface of the component and thereby causing defects in the printing material prevented.
- FR-A 2 734 758 there is also a device for cooling a surface, which is facing a printing unit cylinder is known.
- the surface is from penetrates a pipe system through which a coolant is pumped by dissipates heat absorbed from the surface via a drainage system.
- On the chilled Surface condenses due to condensation humidity, which is below the surface is collected and discharged in a collecting area.
- a device which serves the surface to apply air to a cooling roller to condense moisture and Solvent from a freshly printed paper web on the surface of the chill roll to prevent.
- the device has a housing, which on the surface is adapted to the cooling roller and in the partial surface which is to the cooling roller is facing, has outlet openings for the blown air.
- a printing unit component according to the invention which in an area close to at least a printing machine roller is placed and a partial surface remote from the roller and one of these opposite, a first surface section of the at least one Printing machine roller facing partial surface near the roller, the Air volume between the partial surface near the roller and the first surface section of the at least one printing press roller due to the arrangement of the Partial surface is reduced, and wherein the printing unit component, to avoid Formation of condensation on the surface of the printing unit component, which is heatable is characterized in that an insulating layer is provided between the two partial surfaces, that the partial surface close to the roll can be heated and the partial surface remote from the roll can be cooled, and that the cooled, surface remote from the roller has a device for collecting Condensed water is assigned, or that the cooled, surface remote from the roller as Device for collecting condensed water is designed.
- the Printing unit component arranged in a processing unit of the printing presses can be designed in such a way that the humidity in the vicinity of selected sections of the printing press, further including a mechanism can be provided by the temperature differences between the surfaces of the Machine sections and the surrounding atmosphere can be changed.
- a nip protective cover with media such as B. water, oil, Air or a mixture of these, filled with suitable heat transfer properties that have different temperatures to keep a cool and a warm To create surface and thus condensation in the selected areas of the Reduce printing press.
- a pure liquid can also be added to the media corresponding heat transfer properties belong, in particular a glycol or other antifreeze mixture.
- Such mixtures are often used in printing presses Water mixed to counteract corrosion.
- the closed circuit can e.g. B. a pipe system with feed and Return sections and a reservoir include.
- the reservoir can be a Have heat exchange element and a pumping and stirring device to a uniform temperature distribution in the respective medium contained in the reservoir maintain.
- Flow control mechanism for example through control valves, can be in the components, z. B. in pressure gap protective covers, trusses, boxes, protective shields or Lifter rollers, the temperature levels of the media are regulated accordingly.
- a condensate protection device provided near the surface of a plate or Blanket cylinder of the printing press or near a roller, for example one Dampening roller arranged and on the course of the surface portion of the roller is adjusted to the amount of humid air from which condensation forms and on which Cylinder or rollers can drip to reduce.
- the condensate protection device can be a passive device, is in a further embodiment of the present invention one of the cylinder or the Roller opposite side of the protective device above the ambient temperature heatable to prevent condensation from forming on the protective device.
- Fig. 1 shows a printing unit of a web-fed offset printing press, e.g. B. one Heidelberg Harris M-3000 printing press, with two first top and bottom Printing unit cylinders 1, 2 and two second upper and lower Printing unit cylinders 16, 17, between which a material web 7 on their two Pages is printed.
- a printing unit component e.g. B. a pressure gap cover 3, that protects the machine operator or printer from injury has two Surfaces 4 and 5.
- the pressure gap cover 3 is, for example, with a Pipe system 8 connected, which has a feed section 9 and a return section 10 has, which are both connected to a reservoir 12.
- the pipe system 8 includes, for example, a first pipe section 8a and a through an insulating layer 8c separate second pipe section 8b.
- the first pipe section 8a can e.g. B. the printing unit cylinders 1, 2 or 16, 17 may be arranged facing while the second pipe section 8b from the printing couple cylinders 1, 2 or 16, 17th is arranged facing away.
- the feed section 9 of the pipe system consists, for. B. from a first feed section 9a connected to the first pipe section 8a and one with the second pipe section 8b connected to the second feed section 9b.
- In the same Way-the return section 10 of the pipe system 8 z. B. one with the first Pipe section 8a connected first return section 10a and one with the second Have pipe section 8b connected second return section 10b.
- the first pipe section 8a heated above the temperature of the ambient air by z. B. a heated one Liquid is passed through the first feed section 9a into the first pipe section 8a or the pipe section is heated by an electrically operated heating coil.
- the second Pipe section 8b can continue to be cooled below the level of the ambient air temperature be by z. B. via the second feed section 9b, a cooling liquid through the second pipe section 8a is passed, whereby through the heated and the cooled side of the pipe system is prevented that on the cylinders 1, 2 or 16, 17th facing side of the pressure gap protective cover 3 forms condensation.
- a reservoir 12 which consists of a first section 12a and one of the first Section separate second section 12b can be a first medium 13a in section 12a and a second medium 13b in section 12b on an im be kept substantially constant temperature level, the first Medium 13a for example hot water and the second medium 13b z.
- the media 13a and 13b in each Reservoir section 12a, 12b - e.g. B. water, oil, air or a mixture of others Components - can be stirred by a respective pump device 15a, 15b be, whereby a uniform temperature distribution in each medium 13a and 13b in the respective reservoir sections 12a, 12b.
- z. B. by Monitoring the temperature of everyone using a temperature sensor Medium 13a, 13b e.g. B. over each section of the reservoir 12 assigned conventional heat exchangers 14a, 14b can be controlled individually.
- the pipe system 8 may further include flow control devices 11 around the Flow of media 13a, 13b to cover 3 or generally to the printing unit component to regulate.
- the condensed water is in the region the printing unit cylinder 1, 2 and 16, 17 reducing component a printing nip protective cover 3 with a hollow interior.
- a printing nip protective cover 3 with a hollow interior.
- other components for example Protective shields, trusses, frames, etc. of a printing unit can be integrated to Avoid droplets of condensation that affect print quality.
- Fig. 2 represents an inventive, preferably the above. 3 protective cover Condensate protection device 30, which has an upper protective plate 31 and a lower one Protection plate 32 includes.
- the plates 31 and 32 are for example with the frame of the Printing unit connected.
- the upper protective plate 31 in an area close to the Printing unit cylinders 1, 2 (or close to the printing unit cylinders 16, 17) placed and from the shape of the respective surface sections of the Printing unit cylinder 1, 2 or 16, 17 is adapted, the between the upper Protective plate 31 and the surface portions of the cylinders 1, 2 located amount humid air from which condensation water forms and into which Dampening solution can get on the printing unit cylinders 1, 2.
- the upper Protective plate 31 may be formed as shown in Fig.
- a lower protective plate 32 can be connected to the Upper protective plate 31 are used, which is also one of the surfaces of the Printing unit cylinder 1, 2 or 16, 17 adapted to the volume of the between the protective plate 32 and the surface portions of the cylinders 1, 2 moist air - from which condensation water forms and onto which Printing unit cylinder 1, 2 can drip - further reduce.
- the Condensate protection device 30 be a passive device and z. B. only be arranged in the area of the printing couple cylinders 1, 2 or 16, 17 by the volume moist air, from which condensation water forms and on the printing couple cylinders 1, 2 or 16, 17 can drop.
- the protective plates 31 and 32 at 2.54 cm (1 inch) and 0.64 cm (1/4 inch) from the Surface sections of cylinders 1, 2 or 16, 17 are placed away to the Effectively reduce humid air volume.
- Condensate protection device 30 is one of the printing unit cylinders or Rolls 1, 2 facing near the surface 31a of the upper protective plate 31 over the Level of ambient air temperature also heated to the formation of Condensed water on the upper protective plate 31 in the area of the printing couple cylinders 1, 2 to avoid while one facing away from the printing unit cylinders or rollers 1, 2 Surface 31b remote from the roller of the upper protective plate 31 below the dew point of the Ambient air can be cooled to remove condensation in the area of the cylinder or To avoid rollers 1, 2, which can cause defects in the printing process.
- An exemplary arrangement for heating and cooling the condensate protection device 30 is shown in FIG. 3.
- the upper protective plate 31 can have an outer wall 40 made of sheet metal or a other suitable material, which by an insulating layer 41 of a Roll near inner wall 43 is separated, the z. B. from a material such as polystyrene, Polyethylene, foam or glass fiber is made.
- Below the near the roller Surface 31b of outer wall 40 has an opening 40b and above it Surface 31a of the inner wall 43 remote from the roller is an opening 40a, wherein the openings 40a and 40b are separated by the insulating layer 41.
- the roller Heating surface 31a can pump hot water through opening 40a become.
- the surface 31a close to the roller can be positioned over the Pipe section 8a, the feed section 9a, the return section 10a (including Reservoir section 12a) and the pump device 15a are heated, as with 1 is described.
- in cold water can be pumped through the opening 40b in the same way. So it can Surface 31b remote from the roller, e.g. B. via the pipe section 8b, the feed section 9b, return section 10b (including reservoir section 12b) and one Pump device 15b are cooled.
- the roller remote Surface 31b be designed (e.g. concave) so that the formed on it Condensed water collects.
- the lower protective plate 32 can be constructed in a similar manner so that the Heated cylinder surfaces 1, 2 and the cylinder surfaces 1, 2 opposite side can be cooled, provided that a device under the Lower protective plate 32 is arranged, in which the condensed water collects, for. B. a Condensate collection box 8d with a drainage system, for example with a Drain in a closed container.
- the lower protective plate 32 can be a Outer wall 50 made of sheet metal or other suitable material and a single one Have opening 50a therebetween, as shown in FIG. 3.
- Pumped opening 50a to heat and protect lower protective plate 32 To keep temperature above the dew point of the ambient temperature, and thereby the Avoid formation of condensation.
- condensate protection device 30 As described previously with regard to the prevention of condensation on printing unit cylinders 1, 2 and 16, 17, it is understood that the condensate protection device 30 with an upper protective plate 31 and / or a lower one Protection plate 32 also for many other systems with condensation problems, such as used for example for rollers of a dampening unit of an offset printing machine can be.
Description
- Fig. 1
- eine exemplarische Druckspalt-Schutzabdeckung gemäß vorliegender Erfindung, die in ein geschlossenes Kreislaufsystem zweier Medien integriert ist;
- Fig. 2
- ein Ausführungsbeispiel einer Kondenswasser-Schutzeinrichtung gemäß vorliegender Erfindung; und
- Fig. 3
- eine Querschnittsansicht eines weiteren Ausführungsbeispiels einer Kondenswasser-Schutzeinrichtung gemäß vorliegender Erfindung.
- 1
- oberer Druckwerkszylinder
- 2
- unterer Druckwerkszylinder
- 3
- Druckspalt-Abdeckung
- 4
- Oberfläche der Druckspalt-Abdeckung
- 5
- Oberfläche der Druckspalt-Abdeckung
- 7
- Materialbahn
- 8
- Rohrsystem
- 8a
- erster Rohrabschnitt
- 8b
- zweiter Rohrabschnitt
- 8c
- Isolierschicht
- 8d
- Kondenswasser-Sammelkasten
- 9
- Zuführabschnitt des Rohrsystems 8
- 9a
- erster Zuführabschnitt
- 9b
- zweiter Zuführabschnitt
- 10
- Rückführabschnitt des Rohrsystems 8
- 10a
- erster Rückführabschnitt
- 10b
- zweiter Rückführabschnitt
- 11a
- Durchfluß-Steuereinrichtung
- 11b
- Durchfluß-Steuereinrichtung
- 12
- Reservoir
- 12a
- erster Reservoirabschnitt
- 12b
- zweiter Reservoirabschnitt
- 13
- Medium
- 13a
- erstes Medium
- 13b
- zweites Medium
- 14a
- Wärmeaustauscher
- 14b
- Wärmeaustauscher
- 15
- Pumpeinrichtung
- 16
- unterer Druckwerkszylinder
- 17
- unterer Druckwerkszylinder
- 30
- Kondenswasser-Schutzeinrichtung
- 31
- obere Schutzplatte / Schutzelement
- 31a
- walzennahe Oberfläche der oberen Schutzplatte
- 31b
- walzenferne Oberfläche der oberen Schutzplatte
- 32
- untere Schutzplatte / Schutzelement
- 40
- Außenwand der oberen Schutzplatte 31
- 40a
- Öffnung von 31a
- 40b
- Öffnung von 31b
- 41
- Isolierschicht
- 43
- walzennahe Innenwand
- 50
- Außenwand der unteren Schutzplatte 32
- 50a
- Öffnung von 32
Claims (17)
- Druckwerkskomponente (3, 31), welche in einem Bereich nahe an mindestens einer Druckmaschinenwalze (1, 2, 16, 17) plaziert ist und eine walzenferne Teiloberfläche (5, 31b) sowie eine dieser gegenüberliegende, einem ersten Oberflächenabschnitt der mindestens einen Druckmaschinenwalze (1, 2, 16, 17) zugewandte walzennahe Teiloberfläche (4, 31a) aufweist, wobei das Luftvolumen zwischen der walzennahen Teiloberfläche (4, 31a) und dem ersten Oberflächenabschnitt der mindestens einen Druckmaschinenwalze (1, 2, 16, 17) durch die walzennahe Anordnung der Teiloberfläche (4, 31a) reduziert ist, und wobei die Druckwerkskomponente (3, 31), zur Vermeidung von Kondenswasserbildung an der Oberfläche der Druckwerkskomponente (3, 31), beheizbar ist,
dadurch gekennzeichnet, daß zwischen den beiden Teiloberflächen (4, 5, 31a, 31b) eine Isolierschicht (8c, 41) vorgesehen ist,
daß die walzennahe Teiloberfläche (4, 31a) beheizbar und die walzenferne Teiloberfläche (5, 31b) kühlbar ist, und
daß der gekühlten, walzenfernen Teiloberfläche (5) eine Einrichtung zum Sammeln von Kondenswasser (8d) zugeordnet ist, oder daß die gekühlte, walzenferne Teiloberfläche (31b) als Einrichtung zum Sammeln von Kondenswasser ausgestaltet ist. - Druckwerkskomponente nach Anspruch 1,
dadurch gekennzeichnet, daß die als Einrichtung zum Sammeln von Kondenswasser ausgestaltete Teiloberfläche (31b) einen ersten gerundeten Abschnitt und einen daran anschließenden zweiten gerundeten Abschnitt sowie einen zwischen den beiden Abschnitten gebildeten Sammelbereich für das sich auf der walzenfernen Teiloberfläche (31b) sammelnde Kondenswasser aufweist. - Druckwerkskomponente nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, daß zumindest ein Teil der walzennahen Teiloberfläche (31a) der Form der mindestens einen Druckmaschinenwalze (1, 2) angepaßt ist. - Druckwerkskomponente nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, daß der Abstand zwischen der walzennahen Teiloberfläche (31a) und dem ersten Oberflächenabschnitt der mindestens einen Druckmaschinenwalze (1, 2) weniger als 2,5 cm beträgt. - Druckwerkskomponente nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, daß der Abstand zwischen der walzennahen Teiloberfläche (31a) und dem ersten Oberflächenabschnitt der mindestens einen Druckmaschinenwalze (1, 2) größer als 0,6 cm ist. - Druckwerkskomponente nach einem der vorhergehenden Ansprüche,
gekennzeichnet durch,
eine weitere Druckwerkskomponente (32) mit einer weiteren walzennahen Oberfläche (50), die an einem zweiten Oberflächenabschnitt der mindestens einen Druckmaschinenwalze (1, 2) angeordnet ist. - Druckwerkskomponente nach Anspruch 6,
dadurch gekennzeichnet, daß die Druckwerkskomponente (31) und die weitere Druckwerkskomponente (32) auf einander gegenüberliegenden Seiten oberhalb und unterhalb der mindestens einen Druckmaschinenwalze (1, 2) angeordnet sind. - Druckwerkskomponente nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, daß zwischen der Isolierschicht (8c, 41) und der walzennahen Teiloberfläche (4, 31a) eine von einem Heizmedium (13a) durchflossene Öffnung (40a) gebildet ist. - Druckwerkskomponente nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, daß zwischen der Isolierschicht (8c, 41) und der walzenfernen Teiloberfläche (5, 31b) eine von einem Kühlmedium (13b) durchflossene Öffnung (40b) vorgesehen ist. - Druckwerkskomponente nach Anspruch 9,
dadurch gekennzeichnet, daß ein erstes Zuführsystem (8b, 9b) zur Zufuhr des Kühlmediums (13b) zur Öffnung (40b) sowie ein zweites Zuführsystem (8a, 9a) zur Zufuhr des Heizmediums zur Öffnung (40a) vorgesehen ist. - Druckwerkskomponente nach Anspruch 10,
dadurch gekennzeichnet, daß das erste Zuführsystem (8b, 9b) einen mit der ersten Öffnung (40b) verbundenen ersten Zuführabschnitt (9b), einen ersten Reservoirabschnitt (12b) und eine Pumpeinrichtung (15b) umfaßt; und
daß das zweite Zuführsystem (8a) einen mit der zweiten Öffnung (40a) verbundenen zweiten Zuführabschnitt (9a), einen mit dem zweiten Zuführabschnitt (9a) verbundenen zweiten Reservoirabschnitt (12a) sowie eine Pumpeinrichtung (15a) umfaßt. - Druckwerkskomponente nach Anspruch 11,
dadurch gekennzeichnet, daß das erste Zuführsystem (8b) einen dem ersten Reservoirabschnitt (12b) und der Pumpeinrichtung (15b) zugeordneten ersten Wärmetauscher (14b) umfaßt; und
daß das zweite Zuführsystem (8a) eine dem zweiten Reservoirabschnitt (12a) und der zweiten Pumpeinrichtung (15a) zugeordneten zweiten Wärmetauscher (14a) umfaßt. - Druckwerkskomponente nach einem der Ansprüche 8 bis 12,
dadurch gekennzeichnet, daß das Kühlmedium (13b) und/oder das Heizmedium (13a) aus Wasser, Öl, Luft oder einem Frostschutzmittelgemisch bestehen. - Druckwerkskomponente nach Anspruch 6 oder 7,
dadurch gekennzeichnet, daß die weitere Druckwerkskomponente (32) beheizbar ist. - Druckwerkskomponente nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, daß die mindestens eine Druckmaschinenwalze (1, 2) ein Plattenzylinder, ein Gummituchzylinder oder eine Feuchtwerkswalze ist. - Druckmaschine, insbesondere Offsetdruckmaschine,
gekennzeichnet durch,
eine Druckwerkskomponente (31) nach einem der vorhergehenden Ansprüche. - Druckwerk, insbesondere Offsetdruckwerk,
gekennzeichnet durch,
eine Druckwerkskomponente (31) nach einem der Ansprüche 1 bis 15.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US993326 | 1997-12-18 | ||
US08/993,326 US5906163A (en) | 1997-12-18 | 1997-12-18 | Apparatus and method for preventing condensation in machines processing a web of material |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0924068A2 EP0924068A2 (de) | 1999-06-23 |
EP0924068A3 EP0924068A3 (de) | 2000-01-05 |
EP0924068B1 true EP0924068B1 (de) | 2002-06-19 |
Family
ID=25539390
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98121526A Expired - Lifetime EP0924068B1 (de) | 1997-12-18 | 1998-11-16 | Einrichtung zur Vermeidung von Kondenswasserbildung in Druckmaschinen |
Country Status (4)
Country | Link |
---|---|
US (1) | US5906163A (de) |
EP (1) | EP0924068B1 (de) |
JP (1) | JPH11240126A (de) |
DE (2) | DE19852656A1 (de) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10305700B4 (de) * | 2002-04-22 | 2005-09-29 | Koenig & Bauer Ag | Feuchtwerk einer Druckmaschine |
JP4184882B2 (ja) * | 2003-07-11 | 2008-11-19 | 株式会社小森コーポレーション | 印刷機の回転体の覆い装置 |
DE10354430A1 (de) | 2003-11-21 | 2005-06-09 | Goss International Montataire S.A. | Feuchtkasten einer Offsetdruckmaschine |
US20060255176A1 (en) * | 2005-03-21 | 2006-11-16 | Yeiser John O | Electric motor driven showerhead |
DE102007053080A1 (de) * | 2007-11-07 | 2009-05-20 | Technotrans Ag | Temperiersystem für Druckmaschinen mit mehreren Temperaturniveaus |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4263724A (en) * | 1979-06-14 | 1981-04-28 | Vits-Maschinenbau Gmbh | Traveling web drying apparatus |
US5347726A (en) * | 1989-04-19 | 1994-09-20 | Quad/Tech Inc. | Method for reducing chill roll condensation |
JPH07314636A (ja) * | 1994-05-23 | 1995-12-05 | Rengo Co Ltd | 印刷装置 |
US5842417A (en) * | 1995-04-25 | 1998-12-01 | Heidelberger Druckmaschinen Ag | Apparatus for preventing condensation in machines processing a web of material |
FR2734758A1 (fr) * | 1995-06-01 | 1996-12-06 | Heidelberg Harris Sa | Dispositif d'echange de chaleur avec des cylindres de groupes d'impression |
-
1997
- 1997-12-18 US US08/993,326 patent/US5906163A/en not_active Expired - Fee Related
-
1998
- 1998-11-16 EP EP98121526A patent/EP0924068B1/de not_active Expired - Lifetime
- 1998-11-16 DE DE19852656A patent/DE19852656A1/de not_active Withdrawn
- 1998-11-16 DE DE59804496T patent/DE59804496D1/de not_active Expired - Fee Related
- 1998-12-15 JP JP10355621A patent/JPH11240126A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
DE19852656A1 (de) | 1999-06-24 |
EP0924068A2 (de) | 1999-06-23 |
DE59804496D1 (de) | 2002-07-25 |
EP0924068A3 (de) | 2000-01-05 |
US5906163A (en) | 1999-05-25 |
JPH11240126A (ja) | 1999-09-07 |
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