EP0453772B1 - Doctor blade inking device - Google Patents
Doctor blade inking device Download PDFInfo
- Publication number
- EP0453772B1 EP0453772B1 EP91104494A EP91104494A EP0453772B1 EP 0453772 B1 EP0453772 B1 EP 0453772B1 EP 91104494 A EP91104494 A EP 91104494A EP 91104494 A EP91104494 A EP 91104494A EP 0453772 B1 EP0453772 B1 EP 0453772B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- ink
- doctor blade
- channel
- ink supply
- inking device
- 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.)
- Revoked
Links
- 238000007789 sealing Methods 0.000 claims description 5
- 239000013013 elastic material Substances 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 238000007774 anilox coating Methods 0.000 description 9
- 239000003973 paint Substances 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F31/00—Inking arrangements or devices
- B41F31/02—Ducts, containers, supply or metering devices
- B41F31/027—Ink rail devices for inking ink rollers
Definitions
- the invention relates to a doctor blade inking unit for a printing press with a chamber doctor blade delivering ink to an anilox roller, which can be switched between an operating and a parking position by means of an adjusting device and with an ink supply device arranged on the printing machine under the chamber doctor blade, which has an ink pan and an ink pump.
- the chambered doctor blade is connected to the ink supply device via a hose, one end of which has a releasable hose coupling.
- a hose one end of which has a releasable hose coupling.
- the hose between the doctor blade and the feed device is unfavorable.
- the invention has for its object to provide a doctor blade inking unit which has simply constructed means for separating the chambered doctor blade from the ink supply device.
- this object is achieved by applying the features of the characterizing part of claim 1.
- the particular advantage is that a hose and a hose coupling can be dispensed with between the chamber doctor blade and the ink supply device.
- the 1 has a chambered doctor blade 1 which can be adjusted to an anilox roller 3 by means of an adjusting device 2.
- the doctor blade 1 has an ink chamber 4, in the top and bottom of which 5 doctor blades 6 can be locked by means of clamping strips.
- An ink supply channel 7 is attached to the ink chamber 4.
- the chambered doctor blade 1 has at least one holder 8, which can be fixed on the adjusting device 2.
- the adjusting device 2 has a crossmember 9, which is rotatably mounted on both ends on the side walls of the printing press.
- a cold shoulder 10 is connected to the crossmember 9 for each cold 8.
- the cold 8 of the chambered doctor blade 1 can be attached to the holder projection 10 by means of two bolts 11, the longitudinal axes of which run parallel to the longitudinal axis of the anilox roller 3.
- a hand lever 12 is connected to an eccentric 13 which is arranged rotatably about the cross member 9. With the eccentric 13, the bolts 11 of the holder 8 can be pressed against the holder projection 10.
- an ink supply device 14 Arranged below the chamber doctor blade 1 is an ink supply device 14 which has an ink tray 15 in which the ink to be printed is stored and an ink pump 17 connected to a drive 16.
- the ink supply channel 7 has on the side facing away from the ink chamber 4 an outwardly open ink inlet opening 18 and the ink supply device 14 arranged below it has an ink discharge channel 19 with an outwardly open ink outlet opening 20.
- Fig. 1 shows the arrangement in the operating position, in which the doctor blade 1 rests on the anilox roller 3.
- the ink supply channel 7 rests on the ink delivery channel 19, so that they form a continuous line.
- the underside of the ink supply channel 7 and the top side of the ink delivery channel 19 have flat contact surfaces 21, 22 which in this position run parallel to one another and abut one another.
- the chamber doctor blade 1 is turned off from the anilox roller 3 by means of a pivoting movement of the crossmember 9 and the ink supply channel 7 from the ink delivery channel 19 of the ink supply device 14 separated.
- the swivel path of the crossmember 9 is dimensioned such that the ink supply channel 7 comes into contact with the ink discharge channel 19 in the operating position and the ink inlet opening 18 is above the ink outlet opening 20.
- the clamp of the holder 8 can be released by means of the eccentric 13 by actuating the hand lever 12 of the actuating device 2 and the chamber doctor blade 1 can then be replaced, as shown in FIG. 3.
- a groove 26, into which a sealing ring 27 is inserted, is machined around a paint outlet opening 23 of a paint delivery channel 24 into a support surface 25.
- the ink supply channel 7 rests on the sealing ring 7. This improves the sealing effect.
- ink discharge channel 29 designed as an elastic tube piece into a bore 28 of the ink supply device 14.
- the ink supply channel 7 then lies in the operating position on the elastic ink delivery channel 29, as shown in FIG. 5.
- the ink supply channel 7 or both channels 7, 29 could also be made of elastic material. With a good sealing effect, this arrangement can compensate for small tolerances in the travel of the doctor blade 1.
- An ink delivery channel 30 of the ink feed device 14 has a tube piece 31 which has an end piece 33 which projects out of a support surface 32 of the ink feed device 14 and is tapered there.
- An ink supply channel 34 is provided with a wall 36 delimiting an ink inlet opening 35, the one has a conical recess 37. In the operating position, the conical recess 37 overlaps the conical end piece 33.
- this labyrinth seal between the ink supply channel 34 and the ink delivery channel 30 has a gap 38 which is so small on the one hand that no paint escapes and on the other hand is so large that inaccuracies in the combination of the ink supply channel 34 and the ink delivery channel 30 are absorbed can.
- the chamber doctor blade 1 is turned on and off on the anilox roller 3 by swiveling around the axis of the crossmember 9. All variants of connecting an ink supply channel 7, 34 with an ink delivery channel 19, 24, 29, 30 are closed However, a continuous channel also includes the possibility of providing an actuating device which actuates the turning of the chamber doctor blade 1 on the anilox roller 3 in a straight line.
- the chamber doctor blade 1 and the ink supply channel 7 can also be brought out of contact with the anilox roller 3 or the ink supply channel 19 by a translational shutdown movement of the crossmember in the direction of arrow a.
- the direction of arrow a must lie between the directions of lines L1 and L2. If the direction of arrow a is flatter than L1, the ink feed channel 7 hooks on the ink feed device 14, it is steeper than L2, the chambered doctor blade 1 cannot be turned off by the anilox roller 3.
Landscapes
- Inking, Control Or Cleaning Of Printing Machines (AREA)
Description
Die Erfindung betrifft ein Rakelfarbwerk für eine Druckmaschine mit einer an eine Rasterwalze Farbe abgebenden Kammerrakel, die mittels einer Stellvorrichtung zwischen einer Betriebs- und einer Abstellposition umstellbar ist und mit einer an der Druckmaschine unter der Kammerrakel angeordneten Farbzuführvorrichtung, die eine Farbwanne und eine Farbpumpe aufweist.The invention relates to a doctor blade inking unit for a printing press with a chamber doctor blade delivering ink to an anilox roller, which can be switched between an operating and a parking position by means of an adjusting device and with an ink supply device arranged on the printing machine under the chamber doctor blade, which has an ink pan and an ink pump.
Bei dem Farbwerk der DE-PS 38 32 183 C1 ist die Kammerrakel mit der Farbzuführvorrichtung über einen Schlauch verbunden, dessen eines Ende eine lösbare Schlauchkupplung aufweist. Zu Reinigungszwecken bei Produktwechsel und aus Platzgründen ist der Schlauch zwischen Kammerrakel und Zuführvorrichtung ungünstig.In the inking unit of DE-PS 38 32 183 C1, the chambered doctor blade is connected to the ink supply device via a hose, one end of which has a releasable hose coupling. For cleaning purposes when changing products and for reasons of space, the hose between the doctor blade and the feed device is unfavorable.
Der Erfindung liegt die Aufgabe zugrunde, ein Rakelfarbwerk zu schaffen, das einfach aufgebaute Mittel zur Trennung der Kammerrakel von der Farbzuführvorrichtung aufweist.The invention has for its object to provide a doctor blade inking unit which has simply constructed means for separating the chambered doctor blade from the ink supply device.
Erfindungsgemäß wird diese Aufgabe durch Anwendung der Merkmale des Kennzeichens des Anspruchs 1 gelöst. Der besondere Vorteil liegt darin, daß zwischen der Kammerrakel und der Farbzuführvorrichtung ein Schlauch und eine Schlauchkupplung entfallen können.According to the invention, this object is achieved by applying the features of the characterizing part of claim 1. The particular advantage is that a hose and a hose coupling can be dispensed with between the chamber doctor blade and the ink supply device.
Weitere Merkmale und daraus resultierende Vorteile ergeben sich aus den Unteransprüchen und der nachfolgenden Beschreibung eines Ausführungsbeispieles der Erfindung anhand der Zeichnung. Es zeigt
- Fig. 1
- eine schematische Seitenansicht eines Rakelfarbwerkes in Betriebsposition,
- Fig. 2
- das Rakelfarbwerk gemäß Fig. 1 in der Abstellposition,
- Fig. 3
- das Rakelfarbwerk gemäß Fig. 1 mit abgenommener Kammerrakel und
- Fig. 4 bis 6
- verschiedene Ausführungsbeispiele der die Farbeintrittsöffnung und Farbaustrittsöffnung begrenzende Wandungen.
- Fig. 1
- 2 shows a schematic side view of a doctor blade inking unit in the operating position,
- Fig. 2
- 1 in the parked position,
- Fig. 3
- 1 with the chamber doctor blade removed and
- 4 to 6
- Various exemplary embodiments of the walls delimiting the ink inlet opening and ink outlet opening.
Das Rakelfarbwerk gemäß Fig. 1 weist eine Kammerrakel 1, die mittels einer Stellvorrichtung 2 an eine Rasterwalze 3 anstellbar ist, auf. Die Kammerrakel 1 weist eine Farbkammer 4 auf, in deren Ober- und Unterseite mittels Klemmleisten 5 Rakelmesser 6 feststellbar sind. An der Farbkammer 4 ist ein Farbzuführkanal 7 befestigt. Die Kammerrakel 1 weist mindestens einen Halter 8 auf, der an der Stellvorrichtung 2 festlegbar ist. Die Stellvorrichtung 2 weist eine Traverse 9 auf, die an beiden Enden an Seitenwanden der Druckmaschine drehbar gelagert ist. Fest an der Traverse 9 ist für jeden Kalter 8 ein Kalteransatz 10 angeschlossen. Der Kalter 8 der Kammerrakel 1 ist mittels zweier Bolzen 11, deren Längsachsen parallel zur Längsachse der Rasterwalze 3 verlaufen, am Halteransatz 10 einhängbar. Ein Handhebel 12 ist mit einem Exzenter 13 verbunden, der um die Traverse 9 drehbar angeordnet ist. Mit dem Exzenter 13 können die Bolzen 11 des Halters 8 gegen den Halteransatz 10 angedrückt werden.1 has a chambered doctor blade 1 which can be adjusted to an
Unterhalb der Kammerrakel 1 ist eine Farbzuführvorrichtung 14 angeordnet, die eine Farbwanne 15, in der die zu druckende Farbe bevorratet ist, und eine mit einem Antrieb 16 verbundene Farbpumpe 17 aufweist. Der Farbzuführkanal 7 weist auf der der Farbkammer 4 abgewandten Seite eine nach außen offene Farbeintrittsöffnung 18 und die darunter angeordnete Farbzuführvorrichtung 14 einen Farbabgabekanal 19 mit einer nach außen offenen Farbaustrittsöffnung 20 auf.Arranged below the chamber doctor blade 1 is an
Fig. 1 zeigt die Anordnung in der Betriebsposition, in der die Kammerrakel 1 an der Rasterwalze 3 anliegt. In dieser Position liegt der Farbzuführkanal 7 auf dem Farbabgabekanal 19 auf, so daß sie eine durchgehende Leitung bilden. Die Unterseite des Farbzuführkanals 7 und die Oberseite des Farbabgabekanals 19 weisen ebene Auflageflächen 21, 22 auf, die in dieser Position parallel zueinander verlaufen und aneinander anliegen.Fig. 1 shows the arrangement in the operating position, in which the doctor blade 1 rests on the
Soll die Kammerrakel 1 ausgewechselt werden, beispielsweise bei einem Farbwechsel oder zu Reinigungszwecken, so wird, wie die Fig. 2 erkennen läßt, mittels einer Schwenkbewegung der Traverse 9 die Kammerrakel 1 von der Rasterwalze 3 abgestellt und der Farbzuführkanal 7 von dem Farbabgabekanal 19 der Farbzuführvorrichtung 14 getrennt. Der Schwenkweg der Traverse 9 ist so bemessen, daß der Farbzuführkanal 7 in der Betriebsposition zur Anlage an den Farbabgabekanal 19 kommt und dabei die Farbeintrittsöffnung 18 über der Farbaustrittsöffnung 20 steht.If the chamber doctor blade 1 is to be replaced, for example when changing the color or for cleaning purposes, then, as can be seen in FIG. 2, the chamber doctor blade 1 is turned off from the
In der Abstellposition kann die Klemmung des Halters 8 mittels des Exzenters 13 durch Betätigen des Handhebels 12 der Stellvorrichtung 2 gelöst und dann die Kammerrakel 1 ausgewechselt werden, wie in Fig. 3 gezeigt ist.In the parking position, the clamp of the
Im Ausführungsbeispiel der Fig. 4 ist um eine Farbaustrittsöffnung 23 eines Farbabgabekanals 24 in eine Auflagefläche 25 eine Nut 26 eingearbeitet, in die ein Dichtring 27 eingelegt ist. Der Farbzuführkanal 7 liegt bei dieser Variante auf dem Dichtring 7 auf. Hierdurch wird die Dichtwirkung verbessert.In the exemplary embodiment in FIG. 4, a
Es ist auch denkbar, in eine Bohrung 28 der Farbzuführvorrichtung 14 einen als elastisches Rohrstück ausgebildeten Farbabgabekanal 29 einzusetzen. Der Farbzuführkanal 7 liegt dann in der Betriebsposition auf dem elastischen Farbabgabekanal 29 auf, wie in Fig. 5 gezeigt ist. Alternativ könnten auch der Farbzuführkanal 7 oder beide Kanäle 7, 29 aus elastischem Material gefertigt sein. Diese Anordnung kann bei guter Dichtwirkung geringe Toleranzen des Stellweges der Kammerrakel 1 ausgleichen.It is also conceivable to insert an
Ein weiteres Ausführungsbeispiel ist in Fig. 6 dargestellt. Ein Farbabgabekanal 30 der Farbzuführvorrichtung 14 weist ein Rohrstück 31 auf, das ein über eine Auflagefläche 32 der Farbzuführvorrichtung 14 herausragendes und dort kegelförmig geschnittenes Endstück 33 aufweist. Ein Farbzuführkanal 34 ist mit einer eine Farbeintrittsöffnung 35 begrenzende Wandung 36 versehen, die eine kegelförmige Ausnehmung 37 aufweist. In der Betriebsposition übergreift die kegelförmige Ausnehmung 37 das kegelförmige Endstück 33.Another embodiment is shown in FIG. 6. An
Der Vorteil dieser Anordnung ist, daß diese Labyrinthdichtung zwischen dem Farbzuführkanal 34 und dem Farbabgabekanal 30 einen Spalt 38 aufweist, der einerseits so klein ist, daß keine Farbe austritt und andererseits so groß ist, daß Ungenauigkeiten im Zusammenschluß von Farbzuführkanal 34 und Farbabgabekanal 30 aufgefangen werden können.The advantage of this arrangement is that this labyrinth seal between the
Beim Ausführungsbeispiel gemäß Fig. 1 bis 3 erfolgt die An- und Abstellung der Kammerrakel 1 an die Rasterwalze 3 durch Schwenken um die Achse der Traverse 9. Alle Varianten des Zusammenschlusses eines Farbzuführkanals 7, 34 mit einem Farbabgabekanal 19, 24, 29, 30 zu einem durchgehenden Kanal beinhalten jedoch auch die Möglichkeit, eine Stellvorrichtung, die die An- und Abstellung der Kammerrakel 1 an die Rasterwalze 3 geradlinig tätigt, vorzusehen. So kann beispielsweise anstelle der Schwenkbewegung der Traverse 9 die Kammerrakel 1 und der Farbzuführkanal 7 auch durch eine translatorische Abstellbewegung der Traverse in Pfeilrichtung a außer Kontakt mit der Rasterwalze 3 bzw. dem Farbabgabekanal 19 gebracht werden. Die Pfeilrichtung a muß dabei zwischen den Richtungen der Linien L₁ und L₂ liegen. Ist die Richtung von Pfeil a flacher als L₁, so verhakt sich der Farbzuführkanal 7 an der Farbzuführvorrichtung 14, ist sie steiler als L₂, so kann die Kammerrakel 1 nicht von der Rasterwalze 3 abgestellt werden.In the exemplary embodiment according to FIGS. 1 to 3, the chamber doctor blade 1 is turned on and off on the
Claims (5)
- Doctor blade inking device for a printing machine with a chambered doctor blade delivering ink to a screen roller, which chambered doctor blade can be shifted between an operating position and a retracted position by means of an adjusting device, and with an ink supply device arranged on the printing machine under the chambered doctor blade, the device having an ink trough and an ink pump, characterized in that the chambered doctor blade (1) has an ink supply channel (7, 34) with an ink inlet opening (18, 35) open to the outside and the ink supply device (14) has an ink delivery channel (19, 24, 29, 30) with an ink outlet opening (20, 23) open to the outside and in that the adjusting path of the chambered doctor blade (1) is of such dimensions that in the operating position the ink supply channel (7, 34) with its ink inlet opening (18, 35) is located over the ink outlet opening (20, 23) of the ink delivery channel (19, 24, 29, 30) for the formation of a continuous conduit.
- Doctor blade inking device according to claim 1, characterized in that the ink supply channel and the ink delivery channel (7, 19) in the operating position have level contact surfaces (21, 22) abutting one another.
- Doctor blade inking device according to one of the preceding claims, characterized in that at least one of the channels (7, 29) consists of an elastic material.
- Doctor blade inking device according to one of the preceding claims, characterized in that a sealing ring (27) surrounding the ink outlet opening (23) is fitted to the ink delivery channel (24).
- Doctor blade inking device according to claim 1, characterized in that either the ink delivery channel (30) or the ink supply channel (34) has a conical end which in the operating position engages into a conical depression of the other channel.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4012618 | 1990-04-20 | ||
DE4012618A DE4012618A1 (en) | 1990-04-20 | 1990-04-20 | RAKELFARBWERK |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0453772A1 EP0453772A1 (en) | 1991-10-30 |
EP0453772B1 true EP0453772B1 (en) | 1994-06-01 |
Family
ID=6404738
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP91104494A Revoked EP0453772B1 (en) | 1990-04-20 | 1991-03-22 | Doctor blade inking device |
Country Status (5)
Country | Link |
---|---|
US (1) | US5140901A (en) |
EP (1) | EP0453772B1 (en) |
JP (1) | JPH04224958A (en) |
CA (1) | CA2038027C (en) |
DE (2) | DE4012618A1 (en) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5335596A (en) * | 1991-08-30 | 1994-08-09 | Howard W. DeMoore | Coating apparatus for sheet-fed, offset rotary printing presses |
US5425809A (en) * | 1993-06-17 | 1995-06-20 | Howard W. DeMoore | Anilox coater with brush |
US6631676B2 (en) * | 1995-02-07 | 2003-10-14 | Man Roland Druckmaschinen Ag | Process and apparatus for gravure |
DE29805201U1 (en) * | 1998-03-23 | 1998-05-20 | MAN Roland Druckmaschinen AG, 63075 Offenbach | Anilox inking unit for an offset rotary printing machine |
DE19848773C2 (en) * | 1998-10-22 | 2002-11-28 | Windmoeller & Hoelscher | Device for placing and removing an ink chamber doctor blade on the anilox roller of a printing press |
CH693305A5 (en) * | 1999-03-05 | 2003-05-30 | Bobst Sa | Removable inking device for a flexographic printing machine. |
DE10005876B4 (en) * | 2000-02-10 | 2004-04-01 | Koenig & Bauer Ag | Pump inking unit |
DE10316467A1 (en) * | 2003-04-09 | 2004-11-04 | Windmöller & Hölscher Kg | Carrier for a doctor blade chamber in a rotary printing machine |
ES2300202B1 (en) * | 2006-11-16 | 2009-02-16 | Comexi, S.A. | RASQUETTE DEVICE FOR A DYING GROUP OF A FLEXOGRAPHIC PRINTER. |
ES2640222T3 (en) | 2007-10-18 | 2017-11-02 | Bobst Group Italia Spa | Scraper blade assembly and method that allows using different inks |
Family Cites Families (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US572911A (en) * | 1896-12-08 | Faucet | ||
US612455A (en) * | 1898-10-18 | Half to ciialmer o | ||
GB190926003A (en) * | 1909-11-10 | 1910-08-25 | Claude William Atkinson | Improvements in and relating to Vacuum Piano Players and the like. |
US2271657A (en) * | 1938-02-12 | 1942-02-03 | Samuel C Miller | Luminous sign electrode |
US2290239A (en) * | 1940-02-28 | 1942-07-21 | Int Harvester Co | Milker claw construction |
GB611168A (en) * | 1944-11-23 | 1948-10-26 | Holger Lauridsen | Nipple for the connection of hoseless pump with bicycle tyre valve |
US2624598A (en) * | 1948-01-24 | 1953-01-06 | Vincent J Quinlan | Oil filling nozzle and coupling |
US2701147A (en) * | 1949-02-26 | 1955-02-01 | Aeromat Products Company Inc | Quick-release conduit connection |
US3400658A (en) * | 1965-04-20 | 1968-09-10 | Interchem Corp | Method of intaglio printing |
DE1611285A1 (en) * | 1967-08-30 | 1970-12-10 | Schaefer Etiketten Heinrich Hu | Device for distributing the color and inking the printing roller, in particular a labeling and printing machine |
US3739721A (en) * | 1971-05-10 | 1973-06-19 | Baker Perkins Ltd | Inking pump mechanisms for printing machines |
DE2811276C2 (en) * | 1978-03-15 | 1985-04-25 | Mathias Bäuerle GmbH, 7742 St Georgen | Device for metered supply of ink to a duct roller of an offset printing device |
IT1156658B (en) * | 1982-09-08 | 1987-02-04 | Gd Spa | DISTRIBUTOR DEVICE FOR VISCOUS MATERIALS |
DE3328228A1 (en) * | 1983-08-04 | 1985-04-18 | Martin 8501 Eckental Hilleprandt | Escape ladder |
US4733890A (en) * | 1984-07-09 | 1988-03-29 | Stratoflex, Inc. | Formed fluid coupling apparatus |
GB8711096D0 (en) * | 1987-05-11 | 1987-06-17 | Vickers Plc | Printing |
US4821672A (en) * | 1987-06-22 | 1989-04-18 | Nick Bruno | Doctor blade assembly with rotary end seals and interchangeable heads |
DE3832183C1 (en) * | 1988-09-22 | 1990-02-22 | Man Roland Druckmaschinen Ag, 6050 Offenbach, De | |
DE3832148A1 (en) * | 1988-09-22 | 1990-04-05 | Roland Man Druckmasch | INK WITH A CHAMBER Squeegee |
DE3911839A1 (en) * | 1989-04-11 | 1990-10-18 | Koenig & Bauer Ag | DRAINAGE INK |
DE8912194U1 (en) * | 1989-10-13 | 1989-11-23 | MAN Roland Druckmaschinen AG, 6050 Offenbach | Farbwerk |
-
1990
- 1990-04-20 DE DE4012618A patent/DE4012618A1/en active Granted
-
1991
- 1991-03-11 US US07/667,505 patent/US5140901A/en not_active Expired - Fee Related
- 1991-03-12 CA CA002038027A patent/CA2038027C/en not_active Expired - Fee Related
- 1991-03-22 DE DE59101759T patent/DE59101759D1/en not_active Revoked
- 1991-03-22 EP EP91104494A patent/EP0453772B1/en not_active Revoked
- 1991-04-11 JP JP3079006A patent/JPH04224958A/en active Pending
Also Published As
Publication number | Publication date |
---|---|
DE4012618A1 (en) | 1991-10-24 |
JPH04224958A (en) | 1992-08-14 |
DE59101759D1 (en) | 1994-07-07 |
DE4012618C2 (en) | 1993-08-05 |
CA2038027C (en) | 1994-08-02 |
EP0453772A1 (en) | 1991-10-30 |
CA2038027A1 (en) | 1991-10-21 |
US5140901A (en) | 1992-08-25 |
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