EP0561155B1 - Apparatus for coating paper or cardboard webs - Google Patents
Apparatus for coating paper or cardboard webs Download PDFInfo
- Publication number
- EP0561155B1 EP0561155B1 EP93102113A EP93102113A EP0561155B1 EP 0561155 B1 EP0561155 B1 EP 0561155B1 EP 93102113 A EP93102113 A EP 93102113A EP 93102113 A EP93102113 A EP 93102113A EP 0561155 B1 EP0561155 B1 EP 0561155B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- roller
- coating apparatus
- web
- chamber
- stop element
- 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
Images
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
- D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
- D21H23/22—Addition to the formed paper
- D21H23/32—Addition to the formed paper by contacting paper with an excess of material, e.g. from a reservoir or in a manner necessitating removal of applied excess material from the paper
- D21H23/34—Knife or blade type coaters
- D21H23/36—Knife or blade forming part of the fluid reservoir, e.g. puddle-type trailing blade or short-dwell coaters
Definitions
- the invention relates to a commissioned work according to the preamble of claim 1.
- a commissioned work according to the preamble of claim 1.
- Such a device has become known from US-A-46 88 516.
- a leaf spring-like locking element grinds the web and forms a small angle with it for this purpose at most 32 °.
- this device cannot be satisfactory since there is a strong abrasion either from the paper or from this blocking element. It is also a very complicated structure of the entire device in the area of this locking element necessary so that excess coating slip can be removed from the application chamber.
- the object of the invention is to avoid the grinding of a locking element on the counter roller or web and to design the whole device relatively simply or to minimize damage when brushing, with the smallest possible overflow amount via the gap between the locking element and counter roller or web Gap should be relatively small.
- the angle between the blocking element which is preferably designed as a leaf spring, and the tangent to the web or roller in the region of the gap thereof, measured from the inside of the application chamber, between 95 and 70 °, preferably between 88 and 75 ° , is.
- the parts shown in the cuts naturally extend essentially all along the roller axis at least over its length or the maximum width of the web of paper or cardboard.
- an applicator which is often referred to as a nozzle applicator, and accordingly a nozzle channel 14 for supplying the coating slip to a generally Reservoir to the application chamber 9 provided on a support beam of the application unit, which is formed on the web and is limited on the outlet side by a doctor element 2 - in each case with respect to the running web or lateral surface of the roller - and on the inlet side by a resilient locking element 6 (see arrow p for the direction of travel of the web or roll shell W).
- the doctor element 2 here preferably has a metering strip 3 in the form of a cylindrical rod. This can have circumferential grooves and, as usual, be driven counter to the running direction of the web or roller.
- doctor blade rod is held in a plastic bed, which in turn is anchored by means of a leaf spring-like holder 4 in the holder of a main support beam 12 for the application unit.
- a pressure element for example pressure hose
- the doctor rod 3 can be pressed against the web or roller via the holder 4.
- On the inlet side there is a gap s between the free edge of the blocking element 6 and the web or roller W. It is used to remove excess coating slip from the application chamber 9, it being noted that a certain considerable excess is always necessary for a perfect coating result.
- the usual blade can also be used as a metering bar.
- the resilient locking element is designed as a leaf spring that is angled along a bending edge 19 and is supported on this edge by the strip-shaped or plate-shaped support element 7 against the internal pressure of the application chamber 9.
- the locking element is clamped between the support wall 7 and the front wall 13 of the nozzle channel 14.
- the angle a between the locking element in its free length range and the tangent drawn to the roller in the area of the gap s to the roller is preferably between 70 and 110 ° - measured inside the application chamber 9 - and preferably between 75 and 88 °.
- the blocking element escapes to the outside and thus increases the gap s with an associated reduction in the overpressure in the application chamber 9.
- the coating slip used which can also be glue (in the case of glue, this application chamber is currently used to apply directly to the bare roller surface and only later transfer the glue mass to the web).
- the locking element 6 ' consists of two parts, namely a thin plate or thin band 18, which is connected to a leaf spring-like shorter part than in Figure 1, which is designed as a leaf spring 17 and also has the kink 19'.
- the part 18 'of the locking element near the roller would have to carry a relatively large weight.
- the gap s should be as small as possible (at most 2 mm, preferably 1 mm), so that it is advantageous if the blocking element designed as a leaf spring is quite thin, that is to say preferably between 0.2 and 0.4 mm thick is. This significantly reduces the risk of damage to the web or roller when brushing against it.
- the free edge of the locking element 6, which is designed in the manner of a leaf spring is covered with a coating 21 made of plastic, for example polyurethane (polystyrene) or polyethylene or rubber, which has a circular cross section, as shown in FIG.
- Fig. 5 shows a variant with a straight, leaf spring-like locking element 6 ''.
Landscapes
- Coating Apparatus (AREA)
- Paper (AREA)
- Cartons (AREA)
- Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
Description
Die Erfindung betrifft ein Auftragswerk entsprechend dem Oberbegriff des Patentanspruchs 1. Eine solche Einrichtung ist bekanntgeworden aus US-A-46 88 516. Gemäß Figur 1 dieser Schrift schleift dabei ein blattfederartiges Sperrelement an der Warenbahn und bildet zu dem Zweck mit dieser einen kleinen Winkel von höchstens 32°. Diese Einrichtung kann jedoch nicht befriedigen, da es zu einem starken Abrieb entweder vom Papier oder von diesem Sperrelement kommt. Es ist ferner ein sehr komplizierter Aufbau der ganzen Einrichtung im Bereich dieses Sperrelements nötig, damit man überschüssige Streichmasse aus der Auftragskammer abführen kann.The invention relates to a commissioned work according to the preamble of claim 1. Such a device has become known from US-A-46 88 516. According to Figure 1 of this document, a leaf spring-like locking element grinds the web and forms a small angle with it for this purpose at most 32 °. However, this device cannot be satisfactory since there is a strong abrasion either from the paper or from this blocking element. It is also a very complicated structure of the entire device in the area of this locking element necessary so that excess coating slip can be removed from the application chamber.
Die Aufgabe der Erfindung ist es, das Schleifen eines Sperrelements an der Gegenwalze oder Bahn zu vermeiden und die ganze Einrichtung relativ einfach zu konzipieren bzw. Schäden beim Anstreifen zu minimieren, wobei bei möglichst geringer Überlaufmenge über den Spalt zwischen Sperrelement und Gegenwalze bzw. Bahn der Spalt relativ klein sein soll.The object of the invention is to avoid the grinding of a locking element on the counter roller or web and to design the whole device relatively simply or to minimize damage when brushing, with the smallest possible overflow amount via the gap between the locking element and counter roller or web Gap should be relatively small.
Diese Aufgabe wird erfindungsgemäß durch die Merkmale des kennzeichnenden Teils des Patentanspruchs 1 gelöst.This object is achieved by the features of the characterizing part of patent claim 1.
Man erreicht durch die spezielle Anordnung des federnden (oder federnd gelagerten oder gehaltenen) Sperrelements, daß bei einem steigenden Überdruck in der Auftragskammer sich der zwischen der freien Endkante des Sperrelements und der Bahn bzw. Walze gebildete Spalt sofort vergrößert, so daß eine gesteigerte Menge überschüssiger Streichmasse über diesen Spalt aus der Auftragskammer austritt und somit ein zu starkes Ansteigen des Überdrucks in derselben verhindert wird.It is achieved by the special arrangement of the resilient (or resiliently mounted or held) locking element that with an increasing overpressure in the application chamber, the gap formed between the free end edge of the locking element and the web or roller increases immediately, so that an increased amount of excess Spreading compound emerges from the application chamber via this gap and thus an excessive increase in the overpressure in the same is prevented.
Dabei ist es besonders günstig, den Winkel zwischen dem vorzugsweise als Blattfeder ausgebildeten Sperrelement und der im Bereich des Spalts desselben zur Bahn oder Walze gezogenen Tangente an letztere - gemessen vom Inneren der Auftragskammer aus - zwischen 95 und 70°, vorzugsweise zwischen 88 und 75°, beträgt. Hierdurch wird ein sofortiges Ausweichen des Sperrelements gegen den steigenden Überdruck der Auftragskammer verbunden mit einer spürbaren Vergrößerung des Spalts bewirkt und damit ist dieses Sperrelement besonders wirksam. Dadurch, daß es als sehr dünne Blattfeder ausgebildet ist - Dicke zwischen 0,3 und 0,6 mm - sind Schäden oder Beeinträchtigungen der Bahn oder Walze beim Anstreifen des Sperrelements an die Bahn oder Walze von Bedeutung nicht zu erwarten.It is particularly advantageous to set the angle between the blocking element, which is preferably designed as a leaf spring, and the tangent to the web or roller in the region of the gap thereof, measured from the inside of the application chamber, between 95 and 70 °, preferably between 88 and 75 ° , is. This results in an immediate evasion of the blocking element against the rising overpressure of the application chamber combined with a noticeable enlargement of the gap and this blocking element is particularly effective. Because it is designed as a very thin leaf spring - thickness between 0.3 and 0.6 mm - damage or impairments of the web or roller when the blocking element is rubbed against the web or roller are not to be expected.
Nachfolgend wird die Erfindung anhand der beigefügten Figuren erläutert. Dabei stellt
- Figur 1
- einen prinzipmäßigen Querschnitt durch ein erfindungsgemäßes Auftragswerk und
Figuren 2 bis 5- weitere Ausführungsformen des Sperrelements
- Figure 1
- a basic cross section through an inventive work and
- Figures 2 to 5
- further embodiments of the locking element
Die in den Schnitten dargestellten Teile erstrecken sich natürlich im wesentlichen alle längs der Walzenachse mindestens über deren Länge oder die maximale Breite der Bahn aus Papier oder Karton. Das gleiche gilt natürlich auch für die später beschriebene Knickstelle des Sperrelements, falls es durchgehend als Blattfeder ausgebildet ist, bzw. sowohl seinen federnden Bestandteil als auch für den Spalt s zwischen der freien Endkante des Sperrelements und der Walze W bzw. der laufenden Bahn.The parts shown in the cuts naturally extend essentially all along the roller axis at least over its length or the maximum width of the web of paper or cardboard. The same naturally also applies to the kink of the locking element described later, if it is designed continuously as a leaf spring, or both its resilient component and also for the gap s between the free end edge of the locking element and the roller W or the running web.
In Fig. 1 ist ein Auftragswerk gezeigt, das häufig als Düsen-Auftragswerk bezeichnet wird, und dementsprechend einen Düsenkanal 14 zur Zuführung der Streichmasse auf eine im allgemeinen auf einem Tragbalken des Auftragswerks vorgesehenen Reservoir zur Auftragskammer 9, die an der Warenbahn gebildet und durch ein Rakelelement 2 - jeweils in bezug auf die laufende Bahn bzw. Mantelfläche der Walze - auslaufseitig und durch ein federndes Sperrelement 6 einlaufseitig begrenzt ist (siehe Pfeil p für die Laufrichtung der Bahn oder des Walzenmantels W). Das Rakelelement 2 weist hier vorzugsweise eine Dosierleiste 3 in Form eines zylindrischen Stabes auf. Dieser kann Umfangsrillen aufweisen und entgegen der Laufrichtung der Bahn bzw. Walze - wie üblich - angetrieben sein. Dieser sogenannte Rollrakelstab wird in einem Kunststoffbett gehalten, das wiederum mittels eines blattfederartigen Halters 4 in der Halterung eines Haupttragbalkens 12 für das Auftragswerk verankert ist. Mittels eines nur angedeuteten Druckelementes (z.B. Druckschlauch) 5 kann der Rakelstab 3 über den Halter 4 an die Bahn oder Walze angepreßt werden. Einlaufseitig ergibt sich ein Spalt s zwischen der freien Kante des Sperrelements 6 und der Bahn bzw. Walze W. Er dient dazu, überschüssige Streichmasse aus der Auftragskammer 9 abzuführen, wobei anzumerken ist, daß ein gewisser erheblicher Überschuß für ein einwandfreies Streichergebnis immer notwendig ist. Als Dosierleiste kann auch die übliche Klinge verwendet werden.In Fig. 1, an applicator is shown, which is often referred to as a nozzle applicator, and accordingly a
In diesem Fall ist das federnde Sperrelement als Blattfeder ausgebildet, die längs einer Biegekante 19 abgewinkelt ausgebildet ist und an dieser Kante durch das leisten- oder plattenförmige Stützelement 7 gegen den Innendruck der Auftragskammer 9 abgestützt ist. In diesem Falle ist das Sperrelement zwischen der Stützwand 7 und der Vorderwand 13 des Düsenkanals 14 eingeklemmt. Es sind natürlich auch andere Festlegungsmöglichkeiten denkbar. Der Winkel a zwischen dem Sperrelement in seinem freien Längenbereich und der im Bereich des Spalts s zur Walze an diese gezogenen Tangente beträgt vorzugsweise zwischen 70 und 110° - gemessen im Inneren der Auftragskammer 9 - und vorzugsweise zwischen 75 und 88°. Dadurch ist gewährleistet, daß schon bei geringem Anstieg des Überdrucks in der Auftragskammer 9 das Sperrelement nach außen ausweicht und somit den Spalt s mit einer damit verbundenen Herabsetzung des Überdrucks in der Auftragskammer 9 vergrößert. In der Auftragskammer 9 herrscht im allgemeinen ein Überdruck zwischen 0,02 und 0,5 bar. Dies ist zum Teil auch abhängig von der verwendeten Streichmasse, die auch Leim sein kann (im Falle von Leim wird zur Zeit mit dieser Auftragskammer direkt auf die blanke Walzenoberfläche aufgetragen und erst später auf die Warenbahn die Leimmasse übertragen).In this case, the resilient locking element is designed as a leaf spring that is angled along a
Die in Figur 1 dargestellte Ausführungsform ist die bevorzugte. Es sind natürlich auch noch gewisse Abwandlungen möglich. Nach Figur 2 besteht das Sperrelement 6' aus zwei Teilen, nämlich einer dünnen Platte oder dünnem Band 18, das verbunden ist mit einem blattfederartigen entsprechend kürzeren Teil als in Figur 1, das als Blattfeder 17 ausgebildet ist und ebenfalls die Abknickstelle 19' aufweist.The embodiment shown in Figure 1 is the preferred. Certain modifications are of course also possible. According to Figure 2, the locking element 6 'consists of two parts, namely a thin plate or
Theoretisch wäre es möglich, entsprechend Figur 3 das der Walze nahe Teil 18' des Sperrelements als relativ dicke Leiste auszubilden. Dann hätte natürlich das blattfederartige Teil 17' ein relativ großes Gewicht zu tragen. Es ist ja so, daß der Spalt s möglichst klein sein soll (höchstens 2 mm, vorzugsweise 1 mm), so daß es vorteilhaft ist, wenn das als Blattfeder ausgebildete Sperrelement ziemlich dünn, also vorzugsweise zwischen 0,2 und 0,4 mm dick ist. Dies setzt die Gefahr von Beschädigungen der Bahn oder Walze beim Anstreifen an dieselbe erheblich herab.In theory, it would be possible, according to FIG. 3, to design the part 18 'of the locking element near the roller as a relatively thick strip. Then of course the leaf spring-like part 17 'would have to carry a relatively large weight. It is the case that the gap s should be as small as possible (at most 2 mm, preferably 1 mm), so that it is advantageous if the blocking element designed as a leaf spring is quite thin, that is to say preferably between 0.2 and 0.4 mm thick is. This significantly reduces the risk of damage to the web or roller when brushing against it.
Vorteilhaft erscheint es, indem man die an sich freie Kante des blattfederartig ausgebildeten Sperrelements 6 mit einer etwa im Querschnitt kreisförmigen Beschichtung 21 aus Kunststoff, z.B. Plyurethan (Styropor) oder Polyethylen oder Gummi abdeckt, wie es in Figur 4 dargestellt ist.It appears to be advantageous if the free edge of the
In diesem Fall kann das Beschichtungsteil 21 auch an der Warenbahn oder Walze anliegen (Spalt = Null).In this case, the
Fig. 5 zeigt eine Variante mit geradem, blattfederartigem Sperrelement 6''.Fig. 5 shows a variant with a straight, leaf spring-like locking element 6 ''.
Claims (8)
- Coating apparatus for coating running webs made of paper or cardboard with a surfacing chamber (9) which is under at least 0.01 bar excess pressure relative to environmental pressure and is formed on a roller (W) and which is delimited by a doctor element (3) on its outlet side end - with respect to the roller casing or the web - and a stop wall (6) on its inlet side end in the direction of operation, characterised in that the stop wall is designed as a foil-like or strip-like stop element (6) which is elastic in at least one area or as an elastically mounted plate or strip, the chord of which, between its free end edge and its mounting or support line - on the support element against the internal pressure of the chamber - which stop element or plate or strip when positioned in a straight line has a narrow, adjustable gap, which can also be zero or close to zero, is arranged to be tangential to the casing surface of the roller or web at an angle of between 70° and 105° thereto, and can be moved out of its normal position by the pressure of the surfacing chamber (9).
- Coating apparatus according to claim 1, characterised in that the stop wall (6) is arranged so that the gap steadily increases when the chamber pressure rises above the arrangement pressure.
- Coating apparatus according to claim 1 or 2, characterised in that the stop element (6') is a composite structure comprising at least two parts, the first (17) of which is designed to be connected elastically to a carrier (7) and the second (18) of which is a relatively rigid plate or strip.
- Coating apparatus according to one of claims 1 to 3, characterised in that the stop element (6, 6') is secured at one end and in its middle section has a bending point (19, 19') which is essentially parallel to the roller axis, and in that it is supported between its end mount and the bending point (19, 19') against the internal pressure of the surfacing chamber (9).
- Coating apparatus according to one of claims 1 to 4, characterised in that the stop element (6, 6') has a free length - in the direction of the roller axis, if necessary between its bending point (19, 19') and its end edge on its free end - of between 20 and 100 mm, preferably between 20 and 60 mm.
- Coating apparatus according to claim 5 characterised in that the thickness of the stop element (6) - if it is designed to be completely elastic - is constant and is between 0.1 and 1.0 mm, preferably between 0.3 and 0.8 mm.
- Coating apparatus according to one of claims 1 to 6, characterised in that the stop element (6, 6') is designed so that its deflection at its free end in the vicinity of the roller or web is between 0.3 and 5 mm per 0.1 bar change of internal pressure of the surfacing chamber (9).
- Coating apparatus according to one of the claims 1 to 7, characterised in that the stop element (6) is arranged on the roller at an angle (a) of between 70° and 95° (measured on the inside of the surfacing chamber 9) to a tangent drawn in the region of a gap to the roller - at least in its section close to the gap or its free end edge.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4208897A DE4208897C2 (en) | 1992-03-19 | 1992-03-19 | Applicator for coating webs of paper or cardboard |
| DE4208897 | 1992-03-19 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0561155A1 EP0561155A1 (en) | 1993-09-22 |
| EP0561155B1 true EP0561155B1 (en) | 1997-05-21 |
Family
ID=6454504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP93102113A Expired - Lifetime EP0561155B1 (en) | 1992-03-19 | 1993-02-11 | Apparatus for coating paper or cardboard webs |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US5885350A (en) |
| EP (1) | EP0561155B1 (en) |
| JP (1) | JPH0640648A (en) |
| AT (1) | ATE153404T1 (en) |
| CA (1) | CA2091939A1 (en) |
| DE (2) | DE4208897C2 (en) |
| FI (1) | FI98545C (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI98845C (en) * | 1995-09-20 | 1997-08-25 | Valmet Corp | Device for preventing streaking in a short-dwell application device |
| DE29617230U1 (en) * | 1996-10-04 | 1996-12-05 | Voith Sulzer Papiermaschinen GmbH, 89522 Heidenheim | Application device for applying a coating medium |
| DE29619169U1 (en) * | 1996-11-08 | 1997-01-23 | Voith Sulzer Papiermaschinen GmbH, 89522 Heidenheim | Application device for applying a medium to a running web |
| DE19723458A1 (en) | 1997-06-04 | 1998-12-10 | Voith Sulzer Papiermasch Gmbh | Device and method for applying a liquid or pasty medium to a moving surface |
| DE29716288U1 (en) * | 1997-09-10 | 1999-01-21 | Voith Sulzer Papiermaschinen GmbH, 89522 Heidenheim | Device for direct or indirect application of a liquid or pasty application medium to a running material web, in particular made of paper or cardboard |
| DE19839916A1 (en) * | 1998-09-02 | 2000-03-09 | Jagenberg Papiertech Gmbh | Method and apparatus for reducing the volume or pressure of a fluid being dragged into a gap by moving surfaces |
| KR100648411B1 (en) * | 2003-10-17 | 2006-11-24 | 주식회사 디엠에스 | Injection nozzle |
| US9925555B2 (en) | 2016-02-08 | 2018-03-27 | Valmet Technologies, Inc. | Folded sealing blade for a coating applicator |
| CN107694858B (en) * | 2016-08-08 | 2023-03-17 | 黄丽玲 | Conversion equipment that rubber coating was used |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4387663A (en) * | 1981-10-07 | 1983-06-14 | Beloit Corporation | Blade type fountain coater metering device |
| US4396648A (en) * | 1982-02-08 | 1983-08-02 | Consolidated Papers, Inc. | Paper coating apparatus and method |
| DE3337052C2 (en) * | 1983-10-12 | 1986-06-26 | J.M. Voith Gmbh, 7920 Heidenheim | Coating device for coating moving webs of material |
| US4534309A (en) * | 1983-11-17 | 1985-08-13 | Consolidated Papers, Inc. | Paper coating apparatus |
| CH663362A5 (en) * | 1984-01-07 | 1987-12-15 | Jagenberg Ag | DEVICE FOR COATING MATERIAL SHEETS RUNNING ON A SUPPORT ROLLER WITH ADJUSTABLE APPLICATION THICKNESS. |
| DE3446525A1 (en) * | 1984-01-07 | 1985-08-01 | Jagenberg AG, 4000 Düsseldorf | Apparatus for coating, with a controllable coating thickness, lengths of material running over a support roller |
| DE3612248C2 (en) * | 1985-05-09 | 1995-04-13 | Cons Paper Inc | Coating device |
| FI853041A0 (en) * | 1985-08-07 | 1985-08-07 | Valmet Oy | ANORDING FROM THE MATERIAL. |
| SE454039B (en) * | 1985-09-27 | 1988-03-28 | Husqvarna Ab | ACCESSIBLE Mower |
| FI81637C (en) * | 1988-01-29 | 1990-11-12 | Valmet Paper Machinery Inc | Device for coating material web |
| IT1241179B (en) * | 1990-02-16 | 1993-12-29 | Beloit Italia S.P.A. | COATING HEAD SUITABLE FOR APPLYING A COATING SUSPENSION LAYER ON A CONTINUOUS SHEET OF PAPER. |
| DE4012825A1 (en) * | 1990-04-23 | 1991-10-24 | Koenig & Bauer Ag | CHAMBER Squeegee |
| DE9203709U1 (en) * | 1992-03-19 | 1992-05-07 | J.M. Voith Gmbh, 7920 Heidenheim | Coating unit for coating webs of paper or cardboard |
-
1992
- 1992-03-19 DE DE4208897A patent/DE4208897C2/en not_active Expired - Fee Related
-
1993
- 1993-02-11 AT AT93102113T patent/ATE153404T1/en not_active IP Right Cessation
- 1993-02-11 DE DE59306484T patent/DE59306484D1/en not_active Expired - Fee Related
- 1993-02-11 EP EP93102113A patent/EP0561155B1/en not_active Expired - Lifetime
- 1993-03-10 FI FI931064A patent/FI98545C/en active
- 1993-03-18 JP JP5082430A patent/JPH0640648A/en active Pending
- 1993-03-18 CA CA002091939A patent/CA2091939A1/en not_active Abandoned
-
1997
- 1997-02-10 US US08/798,315 patent/US5885350A/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| FI98545B (en) | 1997-03-27 |
| ATE153404T1 (en) | 1997-06-15 |
| CA2091939A1 (en) | 1993-09-20 |
| FI931064A0 (en) | 1993-03-10 |
| EP0561155A1 (en) | 1993-09-22 |
| FI931064A (en) | 1993-09-20 |
| DE59306484D1 (en) | 1997-06-26 |
| DE4208897A1 (en) | 1993-09-23 |
| DE4208897C2 (en) | 1995-02-23 |
| FI98545C (en) | 1997-07-10 |
| JPH0640648A (en) | 1994-02-15 |
| US5885350A (en) | 1999-03-23 |
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