EP0209031B1 - Can, and method and membrane for its closure - Google Patents

Can, and method and membrane for its closure Download PDF

Info

Publication number
EP0209031B1
EP0209031B1 EP86109223A EP86109223A EP0209031B1 EP 0209031 B1 EP0209031 B1 EP 0209031B1 EP 86109223 A EP86109223 A EP 86109223A EP 86109223 A EP86109223 A EP 86109223A EP 0209031 B1 EP0209031 B1 EP 0209031B1
Authority
EP
European Patent Office
Prior art keywords
membrane
wall
tin
cut
edge
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
Application number
EP86109223A
Other languages
German (de)
French (fr)
Other versions
EP0209031A1 (en
Inventor
Werner Grabher
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Grabher INDOSA-Maschinenbau AG
Original Assignee
Grabher INDOSA-Maschinenbau AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=4246282&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0209031(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Grabher INDOSA-Maschinenbau AG filed Critical Grabher INDOSA-Maschinenbau AG
Priority to AT86109223T priority Critical patent/ATE35246T1/en
Publication of EP0209031A1 publication Critical patent/EP0209031A1/en
Application granted granted Critical
Publication of EP0209031B1 publication Critical patent/EP0209031B1/en
Expired legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D51/00—Closures not otherwise provided for
    • B65D51/18—Arrangements of closures with protective outer cap-like covers or of two or more co-operating closures
    • B65D51/20—Caps, lids, or covers co-operating with an inner closure arranged to be opened by piercing, cutting, or tearing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D51/00—Making hollow objects
    • B21D51/16—Making hollow objects characterised by the use of the objects
    • B21D51/38—Making inlet or outlet arrangements of cans, tins, baths, bottles, or other vessels; Making can ends; Making closures
    • B21D51/44—Making closures, e.g. caps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2251/00—Details relating to container closures
    • B65D2251/0003—Two or more closures
    • B65D2251/0006—Upper closure
    • B65D2251/0018—Upper closure of the 43-type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2251/00—Details relating to container closures
    • B65D2251/0003—Two or more closures
    • B65D2251/0068—Lower closure
    • B65D2251/0093—Membrane

Definitions

  • the invention relates to a can according to the preamble of claim 1; a method of making the can; a membrane for closing them; and finally a method and a device for producing the membrane.
  • the invention therefore has among other things the task of creating a can of the type mentioned, which avoids the disadvantages mentioned and can be implemented in practice. This succeeds through the measures proposed in the characterizing part of claim 1.
  • a can constructed in this way is easy to manufacture and offers no problems when tearing open, but a smooth and clean covering part.
  • a method is to be created with which the can can be closed in the simplest possible manner, preferably in a single work step, while achieving the desired advantages. This is done by the measures defined in the characterizing part of claim 2.
  • the object of the invention is further to provide a membrane for closing cans or the like.
  • Containers that can be created in one operation and still ensure easy opening by means of suitable predetermined tear points. According to the invention, the aim is achieved by the features described in claim 3.
  • a web in the membrane according to the invention is 3 to 50%, preferably 10 to 15% of the cut long, 3, preferably 6 to about 12, in particular 8 to 10 cuts and webs being provided depending on the diameter of the membrane. Fewer (longer) cuts and / or shorter bars endanger the processability of the membrane when gluing into the can, since the long cuts tend to pull apart. More (shorter) cuts and / or longer bars result in bigger problems when tearing open.
  • the right choice can easily be made by any person skilled in the art, depending in particular on the material thickness and rigidity of the membrane, as well as on the tolerances of the can.
  • the predetermined tear line is above half the height of the wall, e.g. runs in the upper third.
  • they are preferably already pre-bent and / or even weakened in their thickness, at least over a part of their width, so that they form predetermined tear points which, when used in tension, actually maintain the sealing of the covering part tear. It is particularly expedient if the webs have an approximately spindle-shaped cross section, for example by are squeezed or cut to zero thickness at both ends bordering the respective cuts.
  • a deep-drawing die and a die are used, each having a circumferential shear edge for producing the cuts, which are preferably distributed evenly around the circumference is interrupted by recesses.
  • a similar method and device is described in US Pat. No. 3,859,942, but there in a different field (a closure cap intended for closing a bottle from the outside and preformed from thin sheet metal is provided with circumferential cuts in order to unscrew it manually the cap by the consumer tearing off between the Allow cuts remaining webs in the tangential direction).
  • This document therefore does not even correspond to the generic term of the method and device according to the invention and therefore could not offer the inventor any indication of the achievement of the object of the invention.
  • the deep-drawing die 6 has a shaft 7 at the top for clamping in the tool.
  • the stamp itself is a disk-like tool part which contains a drawing radius 12 on the end face 13; the cylindrical drawing edge ends in a shear edge 8. This is arranged in the areas A and can be seen from the associated section (FIG. 2A).
  • the recess 9 is arranged in the regions B. Only the shear edge 8 is interrupted here, namely with a depth of approximately 100 microns and an inclination of 25 to 60 degrees as seen from the longitudinal axis.
  • the width of the recess 9 corresponds to the desired width of a web 4.
  • FIG. 3 shows the die 10. It is an annular tool which has a shear edge 11 on its inside, which may have interruptions, but which are not shown in FIG. 3. This can also be seen from the fact that sections A and B (FIGS. 3A, 3B) are identical.
  • the membrane film 14 which is prepared as a flat disk, lies over the die 10.
  • the hold-down 15, which is guided on the deep-drawing die 6, is designed as a ring.
  • the drawing contour 12 can also be seen here, the shearing edge 8 being shown in FIG. 4 and the interruption thereof being shown by the recess 9 in FIG. 5.
  • FIG. 6 and 7 show the tool in the closed position.
  • the die 10 When starting up, the die 10 first hits the hold-down 15 and immediately surrounds the deep-drawing die 6.
  • the membrane film 14 is now converted into the plate 1, the wall 2 and the flange 3.
  • FIG. 6 shows that the finished membrane is cut open laterally is. This corresponds to point A in FIG. 1.
  • FIG. 7 where the cut 9 has interrupted the cut, this corresponds to FIG. This results in only an offset of the membrane film 14 in the wall 2.
  • the manufacture takes place in such a way that when the tool is closed plate 1, wall 2 and flange 3 are initially formed, at the same time the wall 2 is Z-shaped in cross section and in the final phase of the closing movement by shear edges 8 and 11 the longitudinal slots 5 get cut.
  • shear edges 8 and 11 have only a slight overlap, in the order of 100 to 200 microns. This ensures that the membrane can be produced in one operation, at the same time cutting the longitudinal slots 5 and cranking or kinking the webs 4 and possibly even reducing their cross section, at least in part, thereby forming the desired predetermined crack locations.
  • the conventional membrane according to FIG. 9 in turn suffers from the fact that the adhesion of the two membrane layers in the overlap region (3a, 3i) should be less than in the vertical (21a, 21i) and horizontal (14a, 14i) closure region.
  • the open end face 16 of the completely sealed can 17 according to FIG. 10 (FIG. 10a, FIG. 10b), on the other hand, is encompassed by the now separated, circular flange 3 of the membrane 14.
  • the upper end 19, 19 'of the cylindrical wall 21 is arranged from the lower end 23, 23' of the inner leg of the flange 3 at a small distance a, which is chosen to be just large enough that the previous predetermined breaking points 4 (Fig. 1) are torn. This is usually done under tensile stress a smooth tearing off in contrast to the conventional peeling stress when opening the can, in which, as mentioned at the beginning, the inner leg of the flange 3 can often become frayed.
  • a membrane other than the one according to the invention if it only has a predetermined cracking point running over the circumference of its cylindrical wall part, can also be used to produce the can according to the invention, although the membrane according to the invention is preferred because of its ease of manufacture.
  • the heat-sealing layer 24 connects during the closing and tearing-off process to the inner can coating 18, of which an undamaged peripheral strip 22 is retained after the webs 4 (FIG. 1) have been torn off.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
  • Containers Opened By Tearing Frangible Portions (AREA)
  • Diaphragms And Bellows (AREA)
  • Glass Compositions (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Prostheses (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)

Abstract

Can-like containers are frequently closed or sealed with a diaphragm, the wall of which is provided with severance points, or the part of which that is U-shaped in cross section (3) covering the cut edge (15) of the can wall (17) is already located at least partially at a distance (a) from the nearly dish-shaped closure part (14). The diaphragm (14) according to the present invention has severance points that are formed by narrow ligaments (4) interrupted by cut-outs (5), said ligaments being arranged alternatingly along a circumferential line in the rim (2) of the diaphragm. A diaphragm for the closing of can-like containers is e.g. fabricated in that the foil is deep-drawn, and in the end phase of the closing movement cut-outs (5) are formed in its rim (2) by shearing edges (8 and 11). At least one shearing edge (8) is interrupted by notches (9), in the area of which ligaments (4) remain.

Description

Die Erfindung betrifft eine Dose nach dem Oberbegriff des Anspruches 1 ; ein Verfahren zur Herstellung der Dose; eine Membran zu ihrem Verschliessen; und schliesslich ein Verfahren und eine Vorrichtung zur Herstellung der Membran.The invention relates to a can according to the preamble of claim 1; a method of making the can; a membrane for closing them; and finally a method and a device for producing the membrane.

Die eingangs erwähnte Dose ist in der EU-A 007 487 beschrieben, in der Praxis aber nie bekannt geworden, weil das zu ihrer Herstellung angegebene Verfahren einerseits viel zu aufwendig war und andererseits gar nichtfunktionierte. Es wurde dort nämlich vorgeschlagen, den Kragenteil der Verschlussmembran zuerst mittels harter Pressflächen entlang einer später als Sollbruchstelle dienenden Umfangslinie in seiner Stärke zu verringern oder zu perforieren, die Membran dann in die Dosenöffnung einzusetzen, zu erwärmen und durch Aufbringen eines radial nach aussen wirkenden, entlang oder neben der Sollbruchlinie verlaufenden Druckes den Membrankragen und den Überdeckungsteil voneinander zu trennen. Abgesehen von diesem komplizierten und störungsanfälligen Verfahren ergab sich in der Praxis leider nie eine wirklich vollständige Trennung der beiden Membranteile, so dass beim Öffnen der Dose durch Aufreissen des Membrantellers immer wieder Teile des Überdeckungsteiles mitgezogen wurden und ausfransten. Es trat also genau der Effekt auf, der eigentlich mit der Erfindung hätte vermieden werden sollen.The can mentioned at the outset is described in EU-A 007 487, but never became known in practice because the process specified for its production was on the one hand far too complex and on the other hand did not work at all. It was proposed there that the thickness of the collar part of the sealing membrane should first be reduced or perforated by means of hard pressing surfaces along a circumferential line that would later serve as a predetermined breaking point, then the membrane could be inserted into the can opening, heated and applied by applying a radially outward direction or to separate the membrane collar and the covering part from each other in addition to the predetermined breaking line. Apart from this complicated and failure-prone process, in practice there was unfortunately never a complete separation of the two parts of the membrane, so that when the can was opened, parts of the covering part were pulled along and frayed by tearing open the membrane plate. So exactly the effect occurred that should have been avoided with the invention.

Ein anderer Vorschlag ist in der DE-A 3212 990 beschrieben, konnte aber ebenfalls in der Praxis nicht verwirklicht werden. Dort besteht die Membran aus zwei Schichten; nur die innere Schicht des Membrantellerkragens ist von dem zugehörigen Überdeckungsteil getrennt, während die äussere Schicht Teller und Überdeckungsteil unverletzt übergreift und zum Aufreissen dient. Dabei ist es so gut wie unmöglich, die Haftfestigkeit der inneren Schicht auf der Doseninnenwand mit derjenigen der beiden Folien aufeinander so abzustimmen, dass der erfindungsgemäss angestrebte Effekt erreicht wird, weil nämlich einander widersprechende Forderungen auftreten: im Tellerbereich muss die Haftung der beiden Folien aufeinander grösser sein als die Haftung des Kragens der inneren Schicht an der Doseninnenseite; im Überdeckungsbereich müsste es genau umgekehrt sein, damit die innere Folie die Schnittkante des Dosenrumpfes auch nach dem Aufreissen noch mit Sicherheit überdeckt.Another proposal is described in DE-A 3212 990, but could also not be implemented in practice. There the membrane consists of two layers; only the inner layer of the membrane plate collar is separated from the associated cover part, while the outer layer overlaps the plate and cover part unharmed and is used for tearing open. It is practically impossible to match the adhesive strength of the inner layer on the inner wall of the can with that of the two foils so that the effect sought according to the invention is achieved, because contradicting requirements arise: in the plate area, the adhesion of the two foils to one another must be greater be as the adhesion of the collar of the inner layer to the inside of the can; in the overlap area, it would have to be exactly the opposite, so that the inner film still covers the cut edge of the can body with certainty even after tearing.

Die Erfindung hat sich daher unter anderem die Aufgabe gestellt, eine Dose der eingangs genannten Art zu schaffen, die die genannten Nachteile vermeidet und sich in der Praxis verwirklichen lässt. Dies gelingt durch die im Kennzeichen des Anspruches 1 vorgeschlagenen Massnahmen. Eine so konstruierte Dose lässt sich leicht herstellen und bietet beim Aufreissen keine Probleme, sondern einen glatt und sauber verbleibenden Überdeckungsteil. Gemäss einer weiteren Aufgabe der Erfindung soll ein Verfahren geschaffen werden, mit dem in möglichst einfacher Weise, vorzugsweise in einem einzigen Arbeitsschritt, die Dose unter Erzielung der erstrebten Vorteile verschlossen werden kann. Dies geschieht durch die im Kennzeichen des Patentanspruches 2 definierten Massnahmen.The invention therefore has among other things the task of creating a can of the type mentioned, which avoids the disadvantages mentioned and can be implemented in practice. This succeeds through the measures proposed in the characterizing part of claim 1. A can constructed in this way is easy to manufacture and offers no problems when tearing open, but a smooth and clean covering part. According to a further object of the invention, a method is to be created with which the can can be closed in the simplest possible manner, preferably in a single work step, while achieving the desired advantages. This is done by the measures defined in the characterizing part of claim 2.

Aufgabe der Erfindung ist der weiteren, eine Membran zum Verschliessen von Dosen oder dgl. Behältern zu schaffen, die in einem Arbeitsgang erstellt werden kann und trotzdem ein leichtes Öffnen durch geeignete Sollrissstellen gewährleistet. Erfindungsgemäss wird das Ziel durch die im Anspruch 3 beschriebenen Merkmale erreicht.The object of the invention is further to provide a membrane for closing cans or the like. Containers that can be created in one operation and still ensure easy opening by means of suitable predetermined tear points. According to the invention, the aim is achieved by the features described in claim 3.

Schliesslich ist es Aufgabe der Erfindung, ein Verfahren und eine Vorrichtung zur rationellen Herstellung der erfindungsgemässen Membran zu schaffen, die für das Herstellen einer erfindungsgemäss verschlossenen Dose Verwendung findet. Dies gelingt durch die in den Ansprüchen 5 und 6 angegebenen Merkmale.Finally, it is an object of the invention to provide a method and a device for the rational production of the membrane according to the invention, which is used for producing a sealed can according to the invention. This is achieved by the features specified in claims 5 and 6.

Ein Steg in der erfindungsgemässen Membran ist 3 bis 50%, vorzugsweise 10 bis 15% des Schnittes lang, wobei je nach Durchmesser der Membran 3, vorzugsweise 6 bis etwa 12, insbesondere 8 bis 10 Schnitte und Stege vorzusehen sind. Weniger (längere) Schnitte und/oder kürzere Stege gefährden die Verarbeitbarkeit der Membran beim Einkleben in die Dose, da die langen Schnitte zum Auseinanderziehen neigen. Mehr (kürzere) Schnitte und/oder längere Stege ergeben grössere Probleme beim Aufreissen. Die richtige Wahl kann in Abhängigkeit insbesondere von der Materialdicke und -steifigkeitder Membran, sowie von den Toleranzen der Dose von jedem Fachmann leicht getroffen werden.A web in the membrane according to the invention is 3 to 50%, preferably 10 to 15% of the cut long, 3, preferably 6 to about 12, in particular 8 to 10 cuts and webs being provided depending on the diameter of the membrane. Fewer (longer) cuts and / or shorter bars endanger the processability of the membrane when gluing into the can, since the long cuts tend to pull apart. More (shorter) cuts and / or longer bars result in bigger problems when tearing open. The right choice can easily be made by any person skilled in the art, depending in particular on the material thickness and rigidity of the membrane, as well as on the tolerances of the can.

Damit die Membran verlässlich dichtschliessend in die Dose eingesiegelt werden kann, ist es zweckmässig, wenn die Sollrisslinie über der halben Höhe der Wandung, z.B. in deren oberen Drittel verläuft. Um das Abreissen der Stege während des Einsiegelns zu erleichtern, werden sie vorzugsweise bereits vorgeknickt und/oder sogar - wenigstens über einen Teil ihrer Breite- in ihrer Dicke geschwächt, so dass sie Sollrissstellen bilden, die bei Zuganwendung auch tatsächlich unter Beibehaltung der Siegelung des Überdeckungsteiles reissen. Besonders zweckmässig ist es, wenn die Stege einen etwa spindelförmigen Querschnitt haben, indem sie z.B. an beiden, an die jeweiligen Schnitte grenzenden Enden, verlaufend auf die Stärke Null gequetscht oder eingeschnitten sind.So that the membrane can be reliably sealed in the can, it is advisable if the predetermined tear line is above half the height of the wall, e.g. runs in the upper third. In order to facilitate the tearing off of the webs during the sealing process, they are preferably already pre-bent and / or even weakened in their thickness, at least over a part of their width, so that they form predetermined tear points which, when used in tension, actually maintain the sealing of the covering part tear. It is particularly expedient if the webs have an approximately spindle-shaped cross section, for example by are squeezed or cut to zero thickness at both ends bordering the respective cuts.

Um auf einfache Weise eine solche Membran mit integrierter Sollrissstelle herstellen zu können, werden nach einer weiteren Ausbildung der Erfindung ein Tiefziehstempel und eine Matrize verwendet, die je eine umlaufende Scherkante zur Herstellung der Schnitte aufweisen, die in am Umfang -vorzugsweise gleichmässig verteilten Stel - len durch Ausnehmungen unterbrochen ist. Ein ähnliches Verfahren und Vorrichtung wird zwar in der US-A-3.859.942 beschrieben, dort aber auf einem anderem Gebiet (eine für den Verschluss einer Flasche von aussen bestimmte, aus dünnem Blech vorgeformte Verschlusskappe wird mit umlaufenden Schnitten versehen, um beim manuellen Aufdrehen der Verschlusskappe durch den Verbraucher ein Abreissen der zwischen den Schnitten verbliebenen Stege in tangentialer Richtung zu ermöglichen). Diese Druckschrift entspricht somit nicht einmal dem Gattungsbegriff von Verfahren und Vorrichtung nach der Erfindung und konnte daher dem Erfinder auch keinen Hinweis auf die Lösung der erfindungsgemäss gestellten Aufgabe bieten.In order to be able to produce such a membrane with an integrated predetermined tear point in a simple manner, according to a further embodiment of the invention, a deep-drawing die and a die are used, each having a circumferential shear edge for producing the cuts, which are preferably distributed evenly around the circumference is interrupted by recesses. A similar method and device is described in US Pat. No. 3,859,942, but there in a different field (a closure cap intended for closing a bottle from the outside and preformed from thin sheet metal is provided with circumferential cuts in order to unscrew it manually the cap by the consumer tearing off between the Allow cuts remaining webs in the tangential direction). This document therefore does not even correspond to the generic term of the method and device according to the invention and therefore could not offer the inventor any indication of the achievement of the object of the invention.

Anhand eines Ausführungsbeispiels sei die Erfindung näher erläutert. Es zeigen:

  • Fig. 1 eine fertige Membran,
  • Fig. 2 den Tiefziehstempel,
  • Fig. 3 die dazugehörige Matrize,
  • Fig. 4 das Werkzeug in Offenstellung im Schnittbereich,
  • Fig. 5 das Werkzeug in Offenstellung im Stegbereich,
  • Fig. 6 das Werkzeug in Schliesstellung im Schnittbereich,
  • Fig. 7 das Werkzeug in Schliesstellung im Stegbereich,
  • Fig. 8 und 9 das stirnseitige Ende einer herkömmlichen, mit Membran verschlossenen Dosenwand im Schnitt, und
  • Fig. 10 im Querschnitt das stirnseitige Ende einer erfindungsgemässen Dosenwand im Bereich eines Schnittes (10a) bzw. eines Steges (10b).
  • Die Fig. 1 zeigt perspektivisch eine fertige (kreisförmige) Membran 14 (für eine Dose runden Querschnitts). Die Membran besteht aus einem Teller 1, der seitlichen Wandung 2 sowie dem radial abstehenden Flansch 3. Im oberen Drittel der Wandung 2 sind die gleichmässig am Umfang verteilten Längsschlitze 5 angeordnet, die durch Stege 4 begrenzt sind. Ferner sind noch Abschnitte A und B angegeben, die in einer der entsprechenden Zeichnung im Schnitt dargestellt sind (Fig. 1A, Fig.1 B). Dabei ist ersichtlich, wie die Längsschlitze 5 und die Stege 4 angeordnet sind. Die Materialstärke der Membran kann z.B. 40 bis 60 Micron betragen.
The invention will be explained in more detail using an exemplary embodiment. Show it:
  • 1 shows a finished membrane,
  • 2 the deep-drawing stamp,
  • 3 the associated die,
  • 4 the tool in the open position in the cutting area,
  • 5 the tool in the open position in the web area,
  • 6 the tool in the closed position in the cutting area,
  • 7 the tool in the closed position in the web area,
  • 8 and 9, the front end of a conventional, membrane-sealed can wall in section, and
  • Fig. 10 in cross section the front end of a can wall according to the invention in the region of a cut (10a) or a web (10b).
  • 1 shows in perspective a finished (circular) membrane 14 (for a can of round cross-section). The membrane consists of a plate 1, the side wall 2 and the radially projecting flange 3. In the upper third of the wall 2, the longitudinal slots 5, which are evenly distributed on the circumference and are delimited by webs 4, are arranged. Sections A and B are also specified, which are shown in section in one of the corresponding drawings (FIG. 1A, FIG. 1B). It can be seen how the longitudinal slots 5 and the webs 4 are arranged. The material thickness of the membrane can be, for example, 40 to 60 microns.

Aus Fig. 2 sind der Tiefziehstempe) 6, sowie dessen Bereiche A und B ersichtlich. Der Tiefziehstempel 6 hat oben einen Schaft 7 zum Einspannen in das Werkzeug. Der Stempel selbst ist ein scheibenartiges Werkzeugteil, das an der Stirnseite 13 im Umfang einen Ziehradius 12 enthält; die zylindrische Ziehkante endet in einer Scherkante 8. Diese ist in den Bereichen A angeordnet und aus dem dazugehörigen Schnitt (Fig. 2A) ersichtlich. In den Bereichen B ist die Ausnehmung 9 angeordnet. Es ist hier lediglich die Scherkante 8 unterbrochen und zwar mit einer Tiefe von etwas 100 Micron und einer Neigung von 25 bis 60 Grad von der Längsachse aus gesehen. Die Breite der Ausnehmung 9 entspricht der gewünschten Breite eines Steges 4.2 shows the deep-drawing die 6 and its areas A and B. The deep-drawing die 6 has a shaft 7 at the top for clamping in the tool. The stamp itself is a disk-like tool part which contains a drawing radius 12 on the end face 13; the cylindrical drawing edge ends in a shear edge 8. This is arranged in the areas A and can be seen from the associated section (FIG. 2A). The recess 9 is arranged in the regions B. Only the shear edge 8 is interrupted here, namely with a depth of approximately 100 microns and an inclination of 25 to 60 degrees as seen from the longitudinal axis. The width of the recess 9 corresponds to the desired width of a web 4.

Fig. 3 stellt die Matrize 10 dar. Es handelt sich dabei um ein ringförmiges Werkzeug, das an seiner Innenseite eine Scherkante 11 aufweist, die zwar Unterbrechungen aufweisen kann, die aber in Figur 3 nicht dargestellt sind. Man sieht dies auch daran, dass die Schnitte A und B (Fig. 3A, Fig. 3B) identisch sind.3 shows the die 10. It is an annular tool which has a shear edge 11 on its inside, which may have interruptions, but which are not shown in FIG. 3. This can also be seen from the fact that sections A and B (FIGS. 3A, 3B) are identical.

Die Fig. 4 und 5 zeigen das Werkzeug in offener Stellung. Über der Matrize 10 liegt die Membranfolie 14, die als ebene Scheibe vorbereitet ist. Als Ring ist der Niederhalter 15 ausgebildet, der am Tiefziehstempel 6 geführt ist. Auch hier ist die Ziehkontur 12 zu erkennen, wobei in Fig. 4 die Scherkante 8 aufgeführt und in Fig. 5 hingegen deren Unterbrechung durch die Ausnehmung 9 ersichtlich ist.4 and 5 show the tool in the open position. The membrane film 14, which is prepared as a flat disk, lies over the die 10. The hold-down 15, which is guided on the deep-drawing die 6, is designed as a ring. The drawing contour 12 can also be seen here, the shearing edge 8 being shown in FIG. 4 and the interruption thereof being shown by the recess 9 in FIG. 5.

Die Fig. 6 und 7 zeigen das Werkzeug in geschlossener Stellung. Die Matrize 10 trifft beim Hochfahren zuerst auf den Niederhalter 15 und umgreift unmittelbar hernach den Tiefziehstempel 6. Die Membranfolie 14 ist nun umgewandelt in den Teller 1, die Wandung 2 und den Flansch 3. Die Fig. 6 zeigt, dass die fertige Membran seitlich aufgeschnitten ist. Dies entspricht in Fig. 1 der Stelle A. Anders in Fig. 7, wo durch die Ausnehmung 9 eine Unterbrechung des Schnittes erzeugt wurde. Dadurch ergibt sich in der Wandung 2 nur eine Kröpfung der Membranfolie 14.6 and 7 show the tool in the closed position. When starting up, the die 10 first hits the hold-down 15 and immediately surrounds the deep-drawing die 6. The membrane film 14 is now converted into the plate 1, the wall 2 and the flange 3. FIG. 6 shows that the finished membrane is cut open laterally is. This corresponds to point A in FIG. 1. In FIG. 7, where the cut 9 has interrupted the cut, this corresponds to FIG. This results in only an offset of the membrane film 14 in the wall 2.

Die Herstellung geschieht in der Weise, dass bei Schliessung des Werkzeugs vorerst Teller 1, Wandung 2 und Flansch 3 gebildet werden, gleichzeitig die Wandung 2 im Querschnitt eine Z-förmige Ausbildung erfährt und in der Endphase der Schliessbewegung durch Scherkanten 8 und 11 die Längsschlitze 5 geschnitten werden.The manufacture takes place in such a way that when the tool is closed plate 1, wall 2 and flange 3 are initially formed, at the same time the wall 2 is Z-shaped in cross section and in the final phase of the closing movement by shear edges 8 and 11 the longitudinal slots 5 get cut.

Wesentlich ist, dass die Scherkanten 8 und 11 eine nur geringfügige Überlappung aufweisen, und zwar in der Grössenordnung von 100 bis 200 Micron. Damit ist die Gewähr gegeben, dass die Membran in einem Arbeitsgang erstellbar ist, wobei gleichzeitig die Längsschlitze 5 geschnitten und die Stege 4 gekröpft bzw. geknickt und gegebenenfalls sogar-wenigstens teilweise- in ihrem Querschnitt verringert werden, wodurch sich die gewünschten Sollrissstellen bilden.It is essential that the shear edges 8 and 11 have only a slight overlap, in the order of 100 to 200 microns. This ensures that the membrane can be produced in one operation, at the same time cutting the longitudinal slots 5 and cranking or kinking the webs 4 and possibly even reducing their cross section, at least in part, thereby forming the desired predetermined crack locations.

Besonders wichtig ist jedoch die Tatsache anzusehen, dass nur ein einziger Arbeitsgang zur Herstellung dieser Membran genügt und kein weiterer Maschineneinsatz erforderlich ist. Vorhandene Werkzeuge sind gegebenenfalls durch Anbringen von Scherkanten 8 und Ausnehmungen 9 umbaubar.However, it is particularly important to consider the fact that only a single operation is sufficient to produce this membrane and no further use of machinery is required. Existing tools can optionally be converted by attaching shear edges 8 and recesses 9.

Eine herkömmlich verschlossene Dose gemäss Fig. 8 erreicht-wie eingangs erwähnt-keine über den Umfang im erfindungsgemässen Bereich liegende Trennung des Überdeckungsteiles 3 vom Verschlussteil 14.8, as mentioned at the outset, does not achieve a separation of the covering part 3 from the closing part 14 that lies over the circumference in the area according to the invention.

Die herkömmliche Membran gemäss Fig. 9 wiederum leidet darunter, dass die Haftung der beiden Membranschichten im Überdeckungsbereich (3a, 3i) geringer sein müsste als im senkrechten (21 a, 21 i) und waagrechten (14a, 14i) Verschlussbereich.The conventional membrane according to FIG. 9 in turn suffers from the fact that the adhesion of the two membrane layers in the overlap region (3a, 3i) should be less than in the vertical (21a, 21i) and horizontal (14a, 14i) closure region.

Die offene Stirnseite 16 der fertig verschlossenen, erfindungsgemässen Dose 17 gemäss Fig. 10 (Fig. 10a, Fig. 10b) hingegen wird von dem nunmehr abgetrennten, kreisförmigen Flansch 3 der Membran 14 umgriffen. Das obere Ende 19, 19' der zylindrischen Wandung 21 ist vom unteren Ende 23, 23' des innenliegenden Schenkels des Flansches 3 in einem kleinen Abstand a angeordnet, der gerade so gross gewählt ist, dassdiefrüheren Sollrissstellen 4 (Fig. 1) gerissen sind. Unter Zugbeanspruchung erfolgt nämlich in aller Regel ein glattes Abreissen im Gegensatz zu der herkömmlichen Schälbeanspruchung beim Öffnen der Dose, bei der es wie eingangs erwähnt oft zum Ausfransen des Innenschenkels des Flansches 3 kommen kann. Deshalb kann gegebenenfalls auch eine andere als die erfindungsgemässe Membran, soferne sie nur eine über den Umfang ihres zylindrischen Wandungsteiles verlaufende Sollrisstelle aufweist, zur Herstellung der erfindungsgemässen Dose Verwendung finden, obwohl die erfindungsgemässe Membran wegen ihrer leichten Herstellbarkeit bevorzugt ist.The open end face 16 of the completely sealed can 17 according to FIG. 10 (FIG. 10a, FIG. 10b), on the other hand, is encompassed by the now separated, circular flange 3 of the membrane 14. The upper end 19, 19 'of the cylindrical wall 21 is arranged from the lower end 23, 23' of the inner leg of the flange 3 at a small distance a, which is chosen to be just large enough that the previous predetermined breaking points 4 (Fig. 1) are torn. This is usually done under tensile stress a smooth tearing off in contrast to the conventional peeling stress when opening the can, in which, as mentioned at the beginning, the inner leg of the flange 3 can often become frayed. Therefore, a membrane other than the one according to the invention, if it only has a predetermined cracking point running over the circumference of its cylindrical wall part, can also be used to produce the can according to the invention, although the membrane according to the invention is preferred because of its ease of manufacture.

Die Heisssiegelschicht 24 verbindet sich während des Verschliess- und Abreissvorganges mit der Doseninnenbeschichtung 18, von der nach dem Abreissen der Stege 4 (Fig. 1) ein unverletzter Umfangsstreifen 22 erhalten bleibt.The heat-sealing layer 24 connects during the closing and tearing-off process to the inner can coating 18, of which an undamaged peripheral strip 22 is retained after the webs 4 (FIG. 1) have been torn off.

Claims (7)

1. A tin consisting of a body (17) having an inner coating (18), at least one orifice of the said body being sealed by means of a membrane disc (14), the upward-projecting collar (21 ) of which is tightly bonded to the inner coating (18) via a sealing or adhesive layer (24), the upper edge (19) of the collar (21 ) ending at a distance from the cut edge (16) of the body (17) and an annular overlap part (3) beginning at a distance (a) from this upper edge (19), the said overlap part leaving an uncovered and intact annular strip (22) on the inner coating (18) and being flanged over the cut edge (16) of the body (17), characterized in that the upper edge (19) of the collar (21 ) and the inner lower edge (23) of the overlap part (3) are each cut over 70% to 99% of their periphery, and are each torn over 30% to 1 % of their periphery.
2. A process for the production of a tin according to Claim 1, using a membrane, in the cylindrical wall part of which an ideal tear line runs along the periphery, characterized in that the flange (3) of the membrane (14) is held firmly on the cut edge (16) of the tin wall (17), while the disc (1) of the membrane (14) is pressed - for example with the aid of a die - a distance (a) into the tin (17) until the ideal tear points (4) are just torn.
3. A membrane consisting of a foil - preferably about 40 to 60 micron thick - for sealing tin-like containers of different cross-sections, consisting of a disc connecting with a side wall (2), intended to come into contact with the inner wall (18) of the tin, and a flange (3) which projects radially from the said side wall and is characterized by slots (5) and webs (4) arranged alternately and running in the wall (2) - essentially of the same thickness - along a peripheral line, each web (4) having a width of 3 to 50%, preferably 10 to 15%, of the length of a slot (5).
4. A membrane according to Claim 3, characterized in that the webs (4) are bent beforehand and/or-at least over part of their width - are thinner.
5. A process for the production of a membrane consisting of a foil - preferably about 40 to 60 micron thick - for sealing tin-like containers of different cross-sections, with the aid of a deep draw die and a matrix, the disc (1), wall (2) and flange (3) first being formed when the tool is closed, characterized in that, in the end phase of the closing movement, longitudinal slots (5) are cut in the wall (2) along a peripheral line by shear edges (8 and 11) which are integrated in the deep draw die and in the matrix and overlap one another by not more than 0.2, preferably not more than 0.1 mm, the wall thickness of the wall (2) remaining essentially unchanged.
6. An apparatus for carrying out the process according to Claim 5, characterized in that the deep draw die (6) and the matrix (10) each have a peripheral shear edge (8, 11), at least one of which is interrupted at several - preferably uniformly distributed - points by recesses (9).
7. An apparatus according to Claim 6, characterized in that the recesses (9) correspond at their deepest point to the thickness of the membrane (14).
EP86109223A 1985-07-10 1986-07-06 Can, and method and membrane for its closure Expired EP0209031B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86109223T ATE35246T1 (en) 1985-07-10 1986-07-06 CAN, AND METHOD AND MEMBRANE FOR CLOSING IT.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH2995/85A CH668754A5 (en) 1985-07-10 1985-07-10 METHOD FOR CLOSING A CAN-CONTAINER BY MEANS OF A MEMBRANE.
CH2995/85 1985-07-10

Publications (2)

Publication Number Publication Date
EP0209031A1 EP0209031A1 (en) 1987-01-21
EP0209031B1 true EP0209031B1 (en) 1988-06-22

Family

ID=4246282

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86109223A Expired EP0209031B1 (en) 1985-07-10 1986-07-06 Can, and method and membrane for its closure

Country Status (12)

Country Link
US (2) US4744484A (en)
EP (1) EP0209031B1 (en)
JP (1) JPS6264730A (en)
AT (1) ATE35246T1 (en)
AU (1) AU594963B2 (en)
CA (1) CA1274479A (en)
CH (1) CH668754A5 (en)
DE (1) DE3660328D1 (en)
DK (1) DK165400C (en)
ES (1) ES2000657A6 (en)
IN (1) IN163660B (en)
ZA (1) ZA865110B (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH658034A5 (en) * 1985-04-09 1986-10-15 Elpatronic Ag TORNABLE CAN PART.
JPH01267157A (en) * 1988-04-07 1989-10-25 Showa Denko Kk Can-like container lid and production therefor
WO2004083066A1 (en) * 2003-03-18 2004-09-30 Werner Grabher Can comprising a foil seal
DE602006011438D1 (en) 2005-03-01 2010-02-11 Crown Packaging Technology Inc PACKAGING DOSE
US7757879B2 (en) * 2005-11-29 2010-07-20 Sonoco Development, Inc. Container lid formed as a laminate having a built-in opening feature, container incorporating same, and method of making same
DE102006011748B4 (en) * 2006-03-13 2011-03-10 Abro Weidenhammer Gmbh Packaging container with a tearable sealing membrane and process for its production
US7703625B2 (en) * 2006-11-15 2010-04-27 Sonoco Development, Inc. Container lid formed as a laminate having a built-in opening feature, container incorporating same, and method for making same
US20080283529A1 (en) 2007-05-17 2008-11-20 Sonoco Development, Inc. Container Lid Formed as a Laminate Having a Built-In Opening Feature, and Container Incorporating Same
DK2052984T3 (en) * 2007-10-25 2011-02-07 Impress Group Bv Method of preparing and forming a lid and lid
EP2574558A1 (en) * 2011-09-30 2013-04-03 Crown Packaging Technology, Inc Process for closing metal cans
FR3013628B1 (en) * 2013-11-27 2016-07-01 Guillaume Sireix METHOD FOR ASSEMBLING TUBULAR BODIES OF CARDBOARD MATERIAL WITH AN SHUTTER STRUCTURE

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH537843A (en) * 1970-12-14 1973-06-15 Zeiler Ag Closure device on a can, with removable membrane and process for its manufacture
US3859942A (en) * 1971-06-01 1975-01-14 Continental Can Co Apparatus for and method of die forming and perforating pilfer-proof band of closure caps
US3746202A (en) * 1971-06-01 1973-07-17 Continental Can Co Die forming and perforating pilfer-proof band of closure caps
US3741142A (en) * 1972-03-27 1973-06-26 Procter & Gamble Method of making a tear open closure
GB1473828A (en) * 1973-05-03 1977-05-18 Dresser Europe Sa Seven-segment display arrangement and liquid fuel dispensing pump embodying the same
IN149917B (en) * 1978-04-10 1982-05-29 Akerlund & Rausing Ab
EP0007487B1 (en) * 1978-07-10 1981-11-11 Del Bon, Franco Sealed can and preformed closure element therefor, as well as method and apparatuses for manufacturing them
CH639342A5 (en) * 1979-02-17 1983-11-15 Bon F Del Preformed closure element for sealing a can and method for its manufacture
CH636820A5 (en) * 1979-06-18 1983-06-30 Sandherr Max Ag CAN LOCK.
SE429036B (en) * 1979-12-17 1983-08-08 Haustrup Plastic As CONTAINER WITH A CLOSING PART
DE3212990A1 (en) * 1981-04-08 1982-11-04 Weidenhammer Packungen KG GmbH & Co, 6832 Hockenheim Process for producing a closing membrane for containers
US4691834A (en) * 1982-07-12 1987-09-08 Bankers Trust Company Cap and neck structure for a wide mouth jar

Also Published As

Publication number Publication date
CH668754A5 (en) 1989-01-31
ES2000657A6 (en) 1988-03-16
DK325086A (en) 1987-01-11
EP0209031A1 (en) 1987-01-21
AU6001086A (en) 1987-01-15
IN163660B (en) 1988-10-22
DK165400C (en) 1993-04-05
US4744484A (en) 1988-05-17
US4842468A (en) 1989-06-27
DK165400B (en) 1992-11-23
ATE35246T1 (en) 1988-07-15
ZA865110B (en) 1987-02-25
DE3660328D1 (en) 1988-07-28
CA1274479A (en) 1990-09-25
DK325086D0 (en) 1986-07-08
AU594963B2 (en) 1990-03-22
JPS6264730A (en) 1987-03-23

Similar Documents

Publication Publication Date Title
DE102004032100B4 (en) Method for detaching or separating a sealing film and screw caps sealed onto the edge of the neck of a bottle or the like to carry out these methods
DE19510732C1 (en) Process for closing a container opening, containers with a container closure and lid material for producing such a container closure
DE1432141A1 (en) Container lid
EP0395949B1 (en) Package for liquids
EP0209031B1 (en) Can, and method and membrane for its closure
EP0808676A1 (en) Method for producing an easy-open can lid and easy-open can lid
EP0038488B1 (en) Method for manufacturing a liquid-tight container
EP0007487A1 (en) Sealed can and preformed closure element therefor, as well as method and apparatuses for manufacturing them
DE2810899C2 (en) Process for the production and filling of a container, such as a cup or bottle, from thermoplastic material
EP2834161A1 (en) Method for producing a flanged cap, flanged cap, and vessel with flange cap
EP0664759B1 (en) Process for manufacturing package for fluid substances and tool for carrying out the process
DE2428355C3 (en) Process for filling and closing packaging containers and containers manufactured by the process
DE4023602A1 (en) Cardboard container with aluminium lining - has foil which can be easily detached to facilitate recycling of cardboard and foil
DE4411925A1 (en) Method for covering a cut edge of an opening of a container with a protective cover
DE2659521A1 (en) CONTAINER AND METHOD FOR ITS MANUFACTURING
EP0126440B1 (en) Method for making a carton with an internal lining
DE2647775A1 (en) DEVICE FOR RELEASABLE LOCKING OF THE OPEN FACE OF A TUBULAR CONTAINER
DE1943349C3 (en) Retaining ring for bottles or similar containers and procedures for securing them
DE4432718A1 (en) Plastic package with tear-off strap and mfg. tool
DE4438076C2 (en) Can and method of making a can
DE2519709A1 (en) Tape seal container closure for liquid containers - has folded over ring pull and dart folds at chick guide grooves
EP0921985B1 (en) Method of producing a filled container
EP1753665B1 (en) Composite cardboard can
EP0243303B1 (en) Method for making a welded seam
CH644076A5 (en) METHOD FOR PRODUCING A SEALING DEVICE ON A CAN AND DEVICE FOR IMPLEMENTING THE METHOD.

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

17P Request for examination filed

Effective date: 19861215

17Q First examination report despatched

Effective date: 19870630

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

REF Corresponds to:

Ref document number: 35246

Country of ref document: AT

Date of ref document: 19880715

Kind code of ref document: T

ITF It: translation for a ep patent filed
GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
REF Corresponds to:

Ref document number: 3660328

Country of ref document: DE

Date of ref document: 19880728

ET Fr: translation filed
PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

26 Opposition filed

Opponent name: MARKHORST HOLLAND B.V.

Effective date: 19890107

NLR1 Nl: opposition has been filed with the epo

Opponent name: MARKTHORST HOLLAND B.V.

PLBN Opposition rejected

Free format text: ORIGINAL CODE: 0009273

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: OPPOSITION REJECTED

27O Opposition rejected

Effective date: 19900903

NLR2 Nl: decision of opposition
ITTA It: last paid annual fee
EPTA Lu: last paid annual fee
EAL Se: european patent in force in sweden

Ref document number: 86109223.7

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

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

Ref country code: GB

Payment date: 20031106

Year of fee payment: 18

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

Ref country code: SE

Payment date: 20031120

Year of fee payment: 18

Ref country code: FR

Payment date: 20031120

Year of fee payment: 18

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

Ref country code: DE

Payment date: 20031121

Year of fee payment: 18

Ref country code: AT

Payment date: 20031121

Year of fee payment: 18

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

Ref country code: LU

Payment date: 20031124

Year of fee payment: 18

Ref country code: CH

Payment date: 20031124

Year of fee payment: 18

Ref country code: BE

Payment date: 20031124

Year of fee payment: 18

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

Ref country code: NL

Payment date: 20031125

Year of fee payment: 18

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

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

Effective date: 20040706

Ref country code: GB

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

Effective date: 20040706

Ref country code: AT

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

Effective date: 20040706

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

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

Effective date: 20040707

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

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

Effective date: 20040731

Ref country code: CH

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

Effective date: 20040731

Ref country code: BE

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

Effective date: 20040731

BERE Be: lapsed

Owner name: *GRABHER INDOSA-MASCHINENBAU A.G.

Effective date: 20040731

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

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

Effective date: 20050201

Ref country code: DE

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

Effective date: 20050201

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20040706

EUG Se: european patent has lapsed
REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

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

Effective date: 20050331

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 20050201

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050706

APAH Appeal reference modified

Free format text: ORIGINAL CODE: EPIDOSCREFNO

BERE Be: lapsed

Owner name: *GRABHER INDOSA-MASCHINENBAU A.G.

Effective date: 20040731