EP0916587B1 - Tamper-evident closure - Google Patents

Tamper-evident closure Download PDF

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Publication number
EP0916587B1
EP0916587B1 EP98114269A EP98114269A EP0916587B1 EP 0916587 B1 EP0916587 B1 EP 0916587B1 EP 98114269 A EP98114269 A EP 98114269A EP 98114269 A EP98114269 A EP 98114269A EP 0916587 B1 EP0916587 B1 EP 0916587B1
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EP
European Patent Office
Prior art keywords
container
cap
tabs
bead
closure
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
Application number
EP98114269A
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German (de)
French (fr)
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EP0916587A1 (en
Inventor
Bruno Zumbuhl
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Individual
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Individual
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Filing date
Publication date
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Priority to EP00125667A priority Critical patent/EP1092640A1/en
Publication of EP0916587A1 publication Critical patent/EP0916587A1/en
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Publication of EP0916587B1 publication Critical patent/EP0916587B1/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D41/00Caps, e.g. crown caps or crown seals, i.e. members having parts arranged for engagement with the external periphery of a neck or wall defining a pouring opening or discharge aperture; Protective cap-like covers for closure members, e.g. decorative covers of metal foil or paper
    • B65D41/32Caps or cap-like covers with lines of weakness, tearing-strips, tags, or like opening or removal devices, e.g. to facilitate formation of pouring openings
    • B65D41/34Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt
    • B65D41/3442Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt with rigid bead or projections formed on the tamper element and coacting with bead or projections on the container
    • B65D41/3447Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt with rigid bead or projections formed on the tamper element and coacting with bead or projections on the container the tamper element being integrally connected to the closure by means of bridges
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D41/00Caps, e.g. crown caps or crown seals, i.e. members having parts arranged for engagement with the external periphery of a neck or wall defining a pouring opening or discharge aperture; Protective cap-like covers for closure members, e.g. decorative covers of metal foil or paper
    • B65D41/32Caps or cap-like covers with lines of weakness, tearing-strips, tags, or like opening or removal devices, e.g. to facilitate formation of pouring openings
    • B65D41/34Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt
    • B65D41/3423Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt with flexible tabs, or elements rotated from a non-engaging to an engaging position, formed on the tamper element or in the closure skirt
    • B65D41/3428Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt with flexible tabs, or elements rotated from a non-engaging to an engaging position, formed on the tamper element or in the closure skirt the tamper element being integrally connected to the closure by means of bridges
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D2401/00Tamper-indicating means
    • B65D2401/15Tearable part of the closure
    • B65D2401/20Frangible elements completely enclosed in closure skirt

Definitions

  • the invention relates generally to the field of Screw closures for containers and thereby Plastic closures with a relatively small diameter, the for sealing containers with pressurized contents used, especially soft drinks, beer and others carbonated foods. Specifically affects the Invention a guarantee closure according to the preamble of Claim 1.
  • Crown closures are called and which are a tool for Require loosening.
  • plastic screw caps replaced, either in Injection molding process or even more frequently in the die casting process getting produced.
  • These closures are usually called "Guarantee closures" with an integrity indicator ring or pilfer band. This extends from the bottom the cylinder wall of the closure down and is with connected to this edge via webs, the predetermined breaking bridges represent and during casting production or by a separate slot forming operation are.
  • a guarantee closure according to the preamble of Claim 1 is known from US-A 5 356 019.
  • the rags are formed by polyhedra triangular in cross section, which has a hinge on the upper inner edge of the lower thicker wall section of the Tamper-evident indicators are articulated.
  • the rags can on the one hand in the of the thinner upper Swing the exposed space into the wall section when the Screw cap is mounted for the first time, and you can in the Swivel the space underneath the container ring bead if the Screw cap is mounted.
  • the lower thicker one Wall section form these tabs, so that the Screw cap not without tearing off the The integrity indicator can be unscrewed.
  • a disadvantage of this embodiment is the fact that Hinge of both a bending and tensile load is also subject to the fact that the lock thickened at the bottom Wall section is formed, what in the professional world as "Working in the so-called second mode" becomes.
  • the invention has for its object a Guarantee closure with improved rag training too create the possibility of rags inside like that to swing far that the rag in the so-called second Operating mode is excluded.
  • the invention is defined in claim 1.
  • the polyhedron flap has multiple surfaces on and if any of these flat surfaces in complete Contact with a flat or conical surface of the Container ring bulge comes, the axially directed Components of the force directly on the Integrity indicator ring transmitted and serve in known Way to tear the connecting bridges.
  • Fig. 1-3 includes the container-cap combination 10, which also as Guarantee closure is called two elements, namely a screw cap 11 and a container 12.
  • the screw cap 11 has a generally customary design on and is preferably produced by die casting.
  • the closure includes an end wall 16 which is internal and outer surfaces 17 and 18 is limited, the If necessary, a flexible seal 19 supports the inner surface.
  • a cylindrical jacket wall 20 surrounds the end wall 16 and is from an outer surface 21, an inner one Screw surface 22 and a lower surface 23 limited, on which a flange 24 extends downwards.
  • Breakable bridges 25 form a tearable area that the connection to a detachable Integrity indicator ring 26 creates the on the Container neck remains when the main part of the closure is unscrewed.
  • the integrity indicator ring 26 comprises an upper wall section 27 and a lower wall section 28 and is delimited by a tear line as the upper side 30, a lower side 31, an outer surface 32 and an inner surface 33.
  • the lower wall section 28 has a bead 34 and a plurality of tab-shaped ring segments 39, which are arranged distributed over the inner circumference of the screw cap 11.
  • the bead 34 extends radially inward and is delimited by a lower inclined surface 35 and an upper radially extending surface 36, which meet in a bending area of thin cross section or hinge 37, on which the tabs 39 attach.
  • the flaps 39 accordingly form extensions of the imaginary upper inner edge of the bead 34.
  • the inner surface 33 and the upper surface 36 form an annular recess 38 into which the flaps 39 can escape.
  • the tabs 39 have a cross-sectional shape of a polyhedron which is fused with its lower edge to the inner edge of the bead 34.
  • the tabs 39 are therefore inherently inflexible and are only capable of pivoting movement relative to the ring 26 about the axis of the hinge 37.
  • the tabs 39 have a quasi-rectangular cross section and comprise sides 40 to 43.
  • the sides 41 and 43 meet in an edge 49 and the sides 32 and 43 in an edge 48.
  • the container 12 is generally conventional and can be made of polyethylene terephthalate (PET) or plastic materials with more comparable properties.
  • PET polyethylene terephthalate
  • the container 12 includes a hollow main body 50 from which a cylindrical neck 51 extends.
  • the neck 51 includes an annular end surface 52 that defines an open mouth 53 from which an inner surface 54 extends.
  • An external screw surface forms an external thread 55 which works together with the internal thread 22 of the closure 11.
  • the bead 57 comprises a rounded top 58 and a conical bottom 59, which meet at an edge 60.
  • the underside 59 can also lie in a purely radially extending plane.
  • the opening angle of the cone of the underside is between 120 ° and 180 °, preferably between 140 ° and 160 °.
  • An annular space 62 extends between the main body 50 and neck 51, below the conical surface 59, into which the tabs 39 extend in a relatively untensioned position.
  • the edges 60 are arranged further radially on the outside than the hinge 37. The mode of operation is as follows:
  • the cross-sectional shape is of flap 139 to a polyhedron with an asymmetrical house outline modified, pages 140, 141, 142, 143 and 144 as well Has edges 147, 148, 149 and with the hinge 137 with the upper edge of the wall section 128 is connected.
  • the Surfaces 143 and 144 are radially inward of the hinge 137 arranged and fit very closely to the bottom 59 of the bead 57.
  • the flap is over the surface 142 139 sideways during the initial installation of the lock swung away. 4 surfaces 143 and 144 lie radially inward of the hinge 137.
  • the polyhedron is a rectangular shape with a bevelled edge, creating five pages 240, 241, 242, 243 and 244 as well as edges 246, 247, 248 and 249 are formed.
  • the edges 246 come with the first installation of the fastener an inclined inner surface 238 of the Tamper-evident ring 226 in contact, causing the upper wall portion 227 yields outward and the tabs 239 on the thread 55 and the container ring bead 57 come over and swing into the annular space 62 (Fig. 5). If the closure is unscrewed, the bumps Polyhedron side 243 on the conical underside 59 of the Container ring bead 57. Because of the relatively narrow annulus 62 between the lobes and the surface of the neck do not swing the rags inwards, at least not over them the dimension shown in Fig. 4 beyond.
  • the fourth embodiment differs little from the third embodiment, except for the width of the annular space 62, which is in the radial direction is larger than in the embodiment of FIG. 5.
  • the tabs swing 339 radially inwards and generate radial outward forces the integrity indicator ring 326, which tears open lengthways or splits.
  • the lobes finally reach that dash-dotted position. After that, at least some tear the bridges when the ring 326 is in the split state is pressed against the container ring bead 57.
  • Such a closure according to FIG. 6 is suitable especially for use with a Integrity indicator ring 326, which splits lengthways, before all predetermined breaking bridges 325 are opened.
  • the integrity indicator ring can thus be on the screw cap 311 remain attached, or it can then be accessed by users can be removed manually.
  • This type of closure is there preferred if the container is intended for recycling because the container is often made of a material that is different from that of the closure.
  • FIGs. 7 and 8 are for the first embodiment corresponding parts with similar reference numerals but with the prefix 5.
  • the cross section is FIG Rag 539 generally rectangular and considerably thicker than the wall of the top wall section 527.
  • the section 527 is also segmented by longitudinal slots, the Segments correspond to the width of the flaps 539, so that the Ring 526 bulged slightly during initial installation can be as shown in Fig. 15.
  • the cross section of the Rag 539 is rectangular with a slight taper to To offer abutting surfaces with the screw turns and the Bead 57 work together.
  • the surface 543 lies on the surface 59 of the Container ring bead 57 while unscrewing the Closure.
  • the developing forces lead to Moments at the predetermined breaking bridges 525 due to the leverage over the ring 526, which is easy tearing along the Crack line 530 favored.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Cartons (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
  • Seal Device For Vehicle (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Saccharide Compounds (AREA)

Abstract

The safety closure for drinks bottles comprises a screw cap which has an integrity-insuring lower section (426) attached to the main cap body by a thin section (427) which acts as a section of weakness. An inwardly-extending lip (439) between these two sections fits under a ridge on the bottle neck and is slightly pushed outwards when the cap is fastened in place.

Description

Die Erfindung bezieht sich generell auf das Gebiet von Schraubverschlüssen für Behälter und dabei auf Kunststoffverschlüsse mit relativ kleinem Durchmesser, die zur Abdichtung von Behältern mit unter Druck stehendem Inhalt verwendet werden, insbesondere Soft-Drinks, Bier und andere kohlesäurehaltige Lebensmittel. Speziell betrifft die Erfindung einen Garantieverschluß nach dem Oberbegriff des Anspruches 1.The invention relates generally to the field of Screw closures for containers and thereby Plastic closures with a relatively small diameter, the for sealing containers with pressurized contents used, especially soft drinks, beer and others carbonated foods. Specifically affects the Invention a guarantee closure according to the preamble of Claim 1.

Hintergrund der ErfindungBackground of the Invention

Traditionell werden derartige Behälter unter Verwendung von Metallkappen abgedichtet, die gewöhnlich als Kronverschlüsse bezeichnet werden und die ein Werkzeug zum Lösen erforderlich machen. Seit den vergangenen 15 bis 20 Jahren werden solche Verschlüsse zunehmend durch Schraubverschlüsse aus Kunststoff ersetzt, die entweder im Spritzgießverfahren oder noch häufiger im Druckgußverfahren hergestellt werden. Diese Verschlüsse sind gewöhnlich als "Garantieverschlüsse" mit einem Unversehrtheitsanzeigering oder Pilferband versehen. Dieses reicht von dem unteren Rand der Zylinderwandung des Verschlusses nach unten und ist mit diesem Rand über Stege verbunden, die Sollbruchbrücken darstellen und während der Gießherstellung oder durch einen separaten Schlitzbildungs-Arbeitsgang hergestellt worden sind. Traditionally, such containers are used sealed by metal caps, usually called Crown closures are called and which are a tool for Require loosening. For the past 15 to 20 Years, such closures are increasingly used Plastic screw caps replaced, either in Injection molding process or even more frequently in the die casting process getting produced. These closures are usually called "Guarantee closures" with an integrity indicator ring or pilfer band. This extends from the bottom the cylinder wall of the closure down and is with connected to this edge via webs, the predetermined breaking bridges represent and during casting production or by a separate slot forming operation are.

Die jährliche Produktion in den USA derartiger Verschlüsse übersteigt die der meisten anderen Arten von Verschlüssen und der Stand der Technik hinsichtlich solcher Verschlüsse ist, was nicht überrascht, sehr weit entwickelt. Kunststoffverschlüsse dieser Art haben viele Vorteile, einschließlich der Möglichkeit der Abnahme ohne die Anwendung eines Werkzeuges und die Möglichkeit, den Behälter wieder zu verschließen, wenn nicht der gesamte Inhalt beim ersten Öffnen verbraucht worden ist. Es bleiben jedoch signifikante Probleme während der Herstellung und der Handhabung derartiger Verschlüsse zu lösen.The annual production in the USA of such closures exceeds that of most other types of closures and the state of the art with regard to such closures, which is not surprising, very developed. Plastic closures of this type have many advantages including the possibility of taking off without the application a tool and the ability to close the container again close if not all of the content on the first Opening has been consumed. However, there remain significant problems during manufacturing and the Handling of such closures to solve.

Ein Garantieverschluß nach dem Oberbegriff des Anspruches 1 ist aus der US-A 5 356 019 bekannt. Die Lappen werden durch im Querschnitt dreieckförmige Polyeder gebildet, die über ein Scharnier an der oberen inneren Randkante des unteren dickeren Wandabschnittes des Unversehrtheitsanzeigeringes angelenkt sind. Die Lappen können dadurch einerseits in den von dem dünneren oberen Wandabschnitt freigelassenen Raum hineinschwenken, wenn die Schraubkappe erstmalig montiert wird, und sie können in den Raum unterhalb des Behälterringwulstes schwenken, wenn die Schraubkappe montiert ist. Zusammen mit dem unteren dickeren Wandabschnitt bilden diese Lappen eine Sperre, so daß die Schraubkappe nicht ohne Abriß des Unversehrtheitsanzeigeringes abgeschraubt werden kann. Nachteilig an dieser Ausführungsform ist der Umstand, daß das Scharnier sowohl einer Biege- wie auch Zugbelastung unterliegt, ferner auch daß die Sperre am unteren verdickten Wandabschnitt gebildet wird, was in der Fachwelt als "Arbeiten in der sogenannten zweiten Betriebsart" bezeichnet wird. A guarantee closure according to the preamble of Claim 1 is known from US-A 5 356 019. The rags are formed by polyhedra triangular in cross section, which has a hinge on the upper inner edge of the lower thicker wall section of the Tamper-evident indicators are articulated. The rags can on the one hand in the of the thinner upper Swing the exposed space into the wall section when the Screw cap is mounted for the first time, and you can in the Swivel the space underneath the container ring bead if the Screw cap is mounted. Along with the lower thicker one Wall section form these tabs, so that the Screw cap not without tearing off the The integrity indicator can be unscrewed. A disadvantage of this embodiment is the fact that Hinge of both a bending and tensile load is also subject to the fact that the lock thickened at the bottom Wall section is formed, what in the professional world as "Working in the so-called second mode" becomes.

Bei einem weiteren Garantieverschluß (US-A 5 090 788) sind die Lappen mit dem unteren Bereich des verdickten Abschnittes schwenkbar verbunden, der eine Keilform aufweist, wobei die Lappen ebenfalls Keilform besitzen. Beim Aufschrauben des Schraubverschlusses legen sich die Lappen an der Innenseite des Unversehrtheitsanzeigeringes an und spreizen dann hinter dem Behälterringwulst ab, um sich gegen diesen abzustützen, wenn die Schraubkappe abgeschraubt wird. Dies stellt die an sich vorteilhafte erste Betriebsweise dar, jedoch werden die Scharniere der Lappen auf Scherung beansprucht.With another guarantee closure (US-A 5 090 788) are the lobes with the lower area of the thickened Section pivotally connected, which has a wedge shape, the lobes also have a wedge shape. At the Screw the screw cap onto the rag the inside of the integrity indicator ring on and then spread out behind the container ring bead to counteract support this when the screw cap is unscrewed. This represents the advantageous first mode of operation, however, the hinges of the lobes are on shear claimed.

Bei einem weiteren Garantieverschluß (EP 0 381 118 A1) werden geradlinige Lappen verwendet, die keine Schwächungszone zur Bildung eines Scharniers aufweisen. Diese Lappen werden im hochgeklappten Zustand an der Verschraubung und dem Behälterringwulst vorbeigeführt, um sich hinter dem Behälterringwulst aufzuspreizen. Beim Abschrauben der Schraubkappe sollen die weggespreizten Lappen zum Aufreißen der Sollbruchbrücken führen. Wenn dies nicht gelingt, legt sich der Lappen quer auf den sich weiter unten befindlichen verdickten Abschnitt und trägt diesen soweit auf, daß eine Sperre gebildet wird, die zum Abriß des Unversehrtheitsanzeigeringes führt. Bei diesem Garantieverschluß sind somit Vorkehrungen getroffen, die erste und die zweite Betriebsart nacheinander zu praktizieren.With another guarantee lock (EP 0 381 118 A1) straight lobes are used, none Have a weakened zone to form a hinge. This Flaps are folded up on the screw connection and led past the container ring bead to behind the Spread the container ring bead. When unscrewing the Screw cap are intended to tear open the rag of the predetermined breaking bridges. If this does not succeed, submit the rag across the one below thickened section and applies this to the extent that a Lock is formed to demolish the There are few signs of tampering. With this Precautions are thus taken to ensure that first and second operating modes one after the other practice.

Bei einem weiteren Garantieverschluß (US-A 5 107 998) gibt es Lappen, die im Bereich zwischen dem oberen dünneren und dem unteren dickeren Wandabschnitt ansetzen und keulenförmig-hakenförmig ausgebildet sind sowie einen Biegebereich aufweisen. Es ist angegeben, daß die Lappen in die Aussparung des Halses eingreifen, die unmittelbar unterhalb dem unteren Ende der Verschraubungen gelegen ist. With another guarantee closure (US-A 5 107 998) there are rags that are thinner in the area between the top and the lower thicker wall section and are club-shaped hook-shaped and a Show bending area. It is stated that the lobes in engage the neck recess that immediately is located below the lower end of the screw connections.

Zusammenfassung der ErfindungSummary of the invention

Der Erfindung liegt die Aufgabe zugrunde, einen Garantieverschluß mit verbesserter Lappenausbildung zu schaffen, bei der die Möglichkeit der Lappen, nach innen so weit zu schwenken, daß die Lappen in der sogenannten zweiten Betriebsart arbeiten, ausgeschlossen ist.The invention has for its object a Guarantee closure with improved rag training too create the possibility of rags inside like that to swing far that the rag in the so-called second Operating mode is excluded.

Die Erfindung wird in Anspruch 1 definiert.The invention is defined in claim 1.

In einer ersten Ausführungsform der Erfindung wird die Schwenkachse der Lappen radial nach innen der Oberflächen des Lappens verlegt, welche die Unterseite des Behälterring-Wulstes berühren, so daß, wenn der Verschluß abgeschraubt wird, die von dem Behälterring-Wulst auf die Lappen ausgeübten Kräfte lediglich radial nach außen gerichtete Komponenten aufweisen.In a first embodiment of the invention, the Swivel axis of the flap radially inward of the surfaces of the Lappens laid the underside of the container ring bead touch so that when the cap is unscrewed from the container ring bead to the rag Exerted forces only directed radially outwards Components have.

Der Lappen in Polyederform weist mehrere Oberflächen auf, und wenn eine dieser ebenen Oberflächen in vollständigen Kontakt mit einer ebenen oder konischen Oberfläche des Behälterring-Wulstes kommt, werden die achsial gerichteten Komponenten der Kraft direkt auf den Unversehrtheitsanzeigering übertragen und dienen in bekannter Weise zum Zerreißen der Verbindungsbrücken. The polyhedron flap has multiple surfaces on and if any of these flat surfaces in complete Contact with a flat or conical surface of the Container ring bulge comes, the axially directed Components of the force directly on the Integrity indicator ring transmitted and serve in known Way to tear the connecting bridges.

Kurze Beschreibung der ZeichnungenBrief description of the drawings

In den Zeichnungen und der Beschreibung bezeichnen ähnliche Bezugszeichen sich entsprechende Teile in allen Ansichten. Dabei zeigt :

Fig. 1
eine Einzelheit einer ersten Ausführungsform der Erfindung in einer schematischen Querschnittsansicht, und zwar das erstmalige Anbringen eines Verschlusses auf einem entsprechenden Behälterhals,
Fig. 2
eine schematische Querschnittsansicht mit dem Verschluß in aufgeschraubter Stellung, in weiterer Vergrößerung,
Fig. 3
die vergrößerte Einzelheit in Fig. 2 beim Abschrauben des Verschlusses kurz vor dem Aufreißen der Sollbruchbrücken,
Fig. 4
eine Einzelheit in einer schematischen Querschnittsansicht einer zweiten Ausführungsform der Erfindung,
Fig. 5
eine Einzelheit in einer schematischen Querschnittsansicht einer dritten Ausführungsform der Erfindung,
Fig. 6
eine Einzelheit in einer schematischer Querschnittsansicht einer vierten Ausführungsform der Erfindung,
Fig. 7
eine Einzelheit in einer schematischen Querschnittsansicht einer fünften Ausführungsform der Erfindung bei aufgeschraubtem Verschluß,
Fig. 8
eine Ansicht des Verschlusses beim erstmaliegn Anbringen,
In the drawings and the description, like reference characters refer to corresponding parts in all views. It shows:
Fig. 1
a detail of a first embodiment of the invention in a schematic cross-sectional view, namely the first attachment of a closure on a corresponding container neck,
Fig. 2
2 shows a schematic cross-sectional view with the closure in the screwed-on position, in a further enlargement,
Fig. 3
2 shows the enlarged detail in FIG. 2 when the closure is unscrewed shortly before the predetermined breaking bridges are torn open,
Fig. 4
1 shows a detail in a schematic cross-sectional view of a second embodiment of the invention,
Fig. 5
1 shows a detail in a schematic cross-sectional view of a third embodiment of the invention,
Fig. 6
1 shows a detail in a schematic cross-sectional view of a fourth embodiment of the invention,
Fig. 7
1 shows a detail in a schematic cross-sectional view of a fifth embodiment of the invention with the closure screwed on,
Fig. 8
a view of the closure when first installing,

DetailbeschreibungDetailed description

Gemäß erster Ausführungsform der Erfindung (Fig. 1-3) umfaßt die Behälter-Kappe-Kombination 10, die auch als Garantieverschluß bezeichnet wird, zwei Elemente, nämlich eine Schraubkappe 11 und einen Behälter 12.According to the first embodiment of the invention (Fig. 1-3) includes the container-cap combination 10, which also as Guarantee closure is called two elements, namely a screw cap 11 and a container 12.

Die Schraubkappe 11 weist generell übliche Gestaltung auf und wird vorzugsweise im Druckgußverfahren hergestellt. Der Verschluß umfaßt eine Endwandung 16, die von inneren und äußeren Oberflächen 17 bzw. 18 begrenzt wird, wobei die Innenoberfläche ggfs. eine nachgiebige Dichtung 19 stützt. Eine zylindrische Mantelwand 20 umgibt die Endwandung 16 und ist von einer Außenoberfläche 21, einer inneren Schrauboberfläche 22 und einer unteren Oberfläche 23 begrenzt, an der ein Flansch 24 nach unten reicht. Sollbruchbrücken 25 bilden einen zerreißbaren Bereich, der die Verbindung zu einem abtrennbaren Unversehrtheitsanzeigering 26 schafft, der an dem Behälterhals verbleibt, wenn der Hauptteil des Verschlusses abgeschraubt wird.The screw cap 11 has a generally customary design on and is preferably produced by die casting. The closure includes an end wall 16 which is internal and outer surfaces 17 and 18 is limited, the If necessary, a flexible seal 19 supports the inner surface. A cylindrical jacket wall 20 surrounds the end wall 16 and is from an outer surface 21, an inner one Screw surface 22 and a lower surface 23 limited, on which a flange 24 extends downwards. Breakable bridges 25 form a tearable area that the connection to a detachable Integrity indicator ring 26 creates the on the Container neck remains when the main part of the closure is unscrewed.

Der Unversehrtheitsanzeigering 26 umfaßt einen oberen Wandabschnitt 27 und einen unteren Wandabschnitt 28 und wird von einer Rißlinie als Oberseite 30, einer Unterseite 31, einer Außenoberfläche 32 und einer Innenoberfläche 33 begrenzt. Der untere Wandabschnitt 28 weist einen Wulst 34 und eine Mehrzahl von lappenförmigen Ringsegmenten 39 auf, die am Innenumfang der Schraubkappe 11 verteilt angeordnet sind. Der Wulst 34 erstreckt sich radial nach innen und wird von einer unteren geneigten Fläche 35 und einer oberen sich radial erstreckenden Fläche 36 begrenzt, die sich in einem Biegebereich dünnen Querschnitt oder Scharnier 37 treffen, an dem die Lappen 39 ansetzen.
Die Lappen 39 bilden demnach Fortsätze der gedachten oberen Innenkante des Wulstes 34. Die Innenoberfläche 33 und die obere Oberfläche 36 bilden eine ringförmige Aussparung 38, in welche die Lappen 39 ausweichen können.
The integrity indicator ring 26 comprises an upper wall section 27 and a lower wall section 28 and is delimited by a tear line as the upper side 30, a lower side 31, an outer surface 32 and an inner surface 33. The lower wall section 28 has a bead 34 and a plurality of tab-shaped ring segments 39, which are arranged distributed over the inner circumference of the screw cap 11. The bead 34 extends radially inward and is delimited by a lower inclined surface 35 and an upper radially extending surface 36, which meet in a bending area of thin cross section or hinge 37, on which the tabs 39 attach.
The flaps 39 accordingly form extensions of the imaginary upper inner edge of the bead 34. The inner surface 33 and the upper surface 36 form an annular recess 38 into which the flaps 39 can escape.

Die Lappen 39 weisen eine Querschnittsform eines Polyeders auf, der mit seiner unteren Kante mit der Innenkante des Wulstes 34 verschmolzen ist. Die Lappen 39 sind daher in sich unflexibel und sind lediglich zu einer Schwenkbewegung relativ zu dem Ring 26 um die Achse des Scharniers 37 in der Lage. In der ersten Ausführungsform (Fig. 1-3) weisen die Lappen 39 quasi rechteckförmigen Querschnitt auf und umfassen Seiten 40 bis 43. Die Seiten 41 und 43 treffen sich in einer Kante 49 und die Seiten 32 und 43 in einer Kante 48. Der Behälter 12 ist generell konventionell ausgebildet und kann aus Polyethylen-Terepthalat (PET) oder Kunststoffmaterialien mit vergleichbareren Eigenschaften hergestellt sein. Der Behälter 12 umfaßt einen hohlen Hauptkörper 50, von dem sich ein zylindrischer Hals 51 erstreckt. Der Hals 51 umfaßt eine ringförmige Endfläche 52, die einen offenen Mund 53 begrenzt, von dem sich eine Innenoberfläche 54 erstreckt. Eine äußere Schrauboberfläche bildet ein Außengewinde 55, das mit dem Innengewinde 22 des Verschlusses 11 zusammen arbeitet. Unterhalb der untersten Windung 56 befindet sich ein Behälterringwulst 57, der zur Anlage der Lappen 39 dient. Der Wulst 57 umfaßt eine gerundete Oberseite 58 und eine konische Unterseite 59, die sich an einer Kante 60 treffen. Die Unterseite 59 kann auch in einer sich rein radial erstreckenden Ebene liegen.
Der Öffnungswinkel des Konus der Unterseite liegt zwischen 120° und 180°, vorzugsweise zwischen 140° und 160°.
The tabs 39 have a cross-sectional shape of a polyhedron which is fused with its lower edge to the inner edge of the bead 34. The tabs 39 are therefore inherently inflexible and are only capable of pivoting movement relative to the ring 26 about the axis of the hinge 37. In the first embodiment (FIGS. 1-3), the tabs 39 have a quasi-rectangular cross section and comprise sides 40 to 43. The sides 41 and 43 meet in an edge 49 and the sides 32 and 43 in an edge 48. The container 12 is generally conventional and can be made of polyethylene terephthalate (PET) or plastic materials with more comparable properties. The container 12 includes a hollow main body 50 from which a cylindrical neck 51 extends. The neck 51 includes an annular end surface 52 that defines an open mouth 53 from which an inner surface 54 extends. An external screw surface forms an external thread 55 which works together with the internal thread 22 of the closure 11. Below the lowest turn 56 there is a container ring bead 57, which is used to abut the tabs 39. The bead 57 comprises a rounded top 58 and a conical bottom 59, which meet at an edge 60. The underside 59 can also lie in a purely radially extending plane.
The opening angle of the cone of the underside is between 120 ° and 180 °, preferably between 140 ° and 160 °.

Zwischen Hauptkörper 50 und Hals 51, unterhalb der Konusfläche 59 erstreckt sich ein ringförmiger Raum 62, in welchen die Lappen 39 in relativ ungespannter Stellung hineinreichen. Die Kanten 60 sind dabei weiter radial außen angeordnet als das Scharnier 37.
Die Betriebsweise ist wie folgt:
An annular space 62 extends between the main body 50 and neck 51, below the conical surface 59, into which the tabs 39 extend in a relatively untensioned position. The edges 60 are arranged further radially on the outside than the hinge 37.
The mode of operation is as follows:

Wie am besten aus Fig. 1 ersichtlich, wird der Verschluß bei der Erstinstallation auf dem Behälterhals 51 durch Aufschrauben oder infolge einer achsial gerichteten Kraft angebracht. Während des Aufbringens werden die Lappen 39 radial nach außen in die Aussparung 38 geschwenkt. Dabei können die Lappen 39 an die Innenoberfläche 33 anstoßen und den Wandabschnitt 27 ein wenig nach außen beulen. Schließlich kommen die Lappen frei und nehmen eine relativ spannungslose Stellung (Fig. 2) an, in welcher sie sich in den Raum 62 hinein erstrecken, während die Kanten 49 an der Unterseite 59 des Wulstes 57 anliegen.As best seen in Fig. 1, the closure during the first installation on the container neck 51 Unscrew or due to an axial force appropriate. During application, the tabs 39 pivoted radially outward into the recess 38. there the tabs 39 can abut the inner surface 33 and bulge the wall section 27 a little outwards. Finally the rags come free and take a relatively tension-free one Position (Fig. 2) in which they are in the room 62nd extend into it while the edges 49 on the underside 59 of the bead 57.

Wenn der Verschluß abgeschraubt wird, um den Behälter zu öffnen, werden die Lappen 39 radial nach außen infolge des Kontaktes der Kanten 49 mit der Oberfläche 59 geschwenkt, bis die Oberfläche 59 des Wulstes 57 in ebenen Kontakt mit der Oberfläche 43 kommt (Fig. 3). Die Verschwenkung der Lappen während dieser Phase ist in der Größenordnung von ungefähr 30°. Bei weiterem Abschrauben des Verschlusses wirken die zwischen den Oberflächen 43/59 sich entwickelnden Kräfte über den Unversehrtheitsanzeigering 26 als Hebelarm auf die Sollbruchbrücken 25 ein, welche schließlich abreißen. Dadurch wird der Unversehrtheitsanzeigering 26 abgetrennt und verbleibt somit auf dem Behälterhals. Da das Scharnier 37 zu allen Zeiten radial innen der Kante 49 gelegen ist, kann sich der Lappen 39 nicht radial nach innen bewegen. Die sogenannte "zweite Betriebsart" ist somit ausgeschlossen. When the cap is unscrewed to close the container open, the tabs 39 are radially outward as a result of Contact of the edges 49 pivoted with the surface 59 until the surface 59 of the bead 57 in flat contact with the Surface 43 comes (Fig. 3). The swiveling of the rags during this phase is of the order of approximately 30 °. If the screw is unscrewed further, the forces developing between surfaces 43/59 the integrity indicator ring 26 as a lever arm on the Breakable bridges 25, which finally tear off. Thereby the integrity indicator ring 26 is separated and thus remains on the neck of the container. Since the hinge 37 too is located radially inside the edge 49 at all times do not move the tab 39 radially inwards. The so-called "Second operating mode" is therefore excluded.

Unter Hinwendung zur zweiten Ausführungsform (Fig. 4) der Erfindung sind zur ersten Ausführungsform entsprechende Teile mit ähnlichen Bezugszeichen versehen worden, jedoch mit dem zusätzlichen Prefix "1".Turning to the second embodiment (Fig. 4) the invention are corresponding to the first embodiment Parts have been provided with similar reference numerals, but with the additional prefix "1".

In der zweiten Ausführungsform ist die Querschnittsform des Lappens 139 zu einem Polyeder mit asymetrischem Hausumriß abgewandelt, der Seiten 140, 141, 142, 143 und 144 sowie Kanten 147, 148, 149 aufweist und über das Scharnier 137 mit der Oberkante des Wandabschnittes 128 verbunden ist. Die Oberflächen 143 und 144 sind radial innen von dem Scharnier 137 angeordnet und passen sich sehr eng an die Unterseite 59 des Wulstes 57 an. Über die Oberfläche 142 wird der Lappen 139 während der Erstinstallation des Verschlusses seitlich weggeschwenkt. In der belastungsfreien Stellung der Fig. 4 liegen die Oberflächen 143 und 144 radial innen zum Scharnier 137. Wenn der Verschluß abgeschraubt wird, schwenken die Lappen 139 nur wenig, wenn überhaupt, denn sie werden durch Anlage der Kante 148 an der Oberfläche des ringförmigen Raumes 62 daran gehindert, nach unten zu schwenken. Die zum Zerreißen der Sollbruchbrücken 125 notwendige vertikale Bewegung ist demnach sehr kurz und die Brücken reißen beinahe unmittelbar, wenn der Verschluß abgeschraubt wird.In the second embodiment, the cross-sectional shape is of flap 139 to a polyhedron with an asymmetrical house outline modified, pages 140, 141, 142, 143 and 144 as well Has edges 147, 148, 149 and with the hinge 137 with the upper edge of the wall section 128 is connected. The Surfaces 143 and 144 are radially inward of the hinge 137 arranged and fit very closely to the bottom 59 of the bead 57. The flap is over the surface 142 139 sideways during the initial installation of the lock swung away. 4 surfaces 143 and 144 lie radially inward of the hinge 137. When the closure is unscrewed, the pivot Rag 139 only a little, if at all, because they are worn out Apply the edge 148 to the surface of the ring-shaped Room 62 prevented from swinging down. The for Tear the predetermined breaking bridges 125 necessary vertical Movement is therefore very short and the bridges almost break immediately when the cap is unscrewed.

In der dritten Ausführungsform (Prefix 2, Fig. 5) hat der Polyeder eine Rechteckform mit abgeschrägter Kante, wodurch fünf Seiten 240, 241, 242, 243 und 244 sowie Kanten 246, 247, 248 und 249 gebildet werden. Während der Erstinstallation des Verschlusses kommen die Kanten 246 mit einer geneigten inneren Oberfläche 238 des Unversehrtheitsanzeige-Ringes 226 in Berührung, wodurch der obere Wandabschnitt 227 nach außen nachgibt und die Lappen 239 an dem Gewinde 55 und dem Behälterringwulst 57 vorbeikommen und in den ringförmigen Raum 62 hineinschwenken (Fig. 5). Wenn der Verschluß abgeschraubt wird, stößt die Polyederseite 243 an der konischen Unterseite 59 des Behälterringwulstes 57 an. Wegen des relativ engen Ringraumes 62 zwischen den Lappen und der Oberfläche des Halses können die Lappen nicht nach innen schwenken, jedenfalls nicht über das in Fig. 4 gezeigte Maß hinaus.In the third embodiment (Prefix 2, Fig. 5) the polyhedron is a rectangular shape with a bevelled edge, creating five pages 240, 241, 242, 243 and 244 as well as edges 246, 247, 248 and 249 are formed. During the The edges 246 come with the first installation of the fastener an inclined inner surface 238 of the Tamper-evident ring 226 in contact, causing the upper wall portion 227 yields outward and the tabs 239 on the thread 55 and the container ring bead 57 come over and swing into the annular space 62 (Fig. 5). If the closure is unscrewed, the bumps Polyhedron side 243 on the conical underside 59 of the Container ring bead 57. Because of the relatively narrow annulus 62 between the lobes and the surface of the neck do not swing the rags inwards, at least not over them the dimension shown in Fig. 4 beyond.

Die vierte Ausführungsform (Prefix 3, Fig. 6) unterscheidet sich von der dritten Ausführungsform nur wenig, bis auf die Weite des Ringraumes 62, der in radialer Richtung größer als in der Ausführungsform der Fig. 5 ist.The fourth embodiment (Prefix 3, Fig. 6) differs little from the third embodiment, except for the width of the annular space 62, which is in the radial direction is larger than in the embodiment of FIG. 5.

Wenn die Kappe abgeschraubt wird, schwenken die Lappen 339 radial nach innen und erzeugen radiale Auswärtskräfte auf den Unversehrtheitsanzeigering 326, der längs aufreißt oder sich spaltet. Die Lappen erreichen schließlich die strichpunktierte Stellung. Danach reißen wenigstens einige der Brücken, wenn der Ring 326 in aufgespaltenem Zustand gegen den Behälterringwulst 57 gedrängt wird.When the cap is unscrewed, the tabs swing 339 radially inwards and generate radial outward forces the integrity indicator ring 326, which tears open lengthways or splits. The lobes finally reach that dash-dotted position. After that, at least some tear the bridges when the ring 326 is in the split state is pressed against the container ring bead 57.

Ein solcher Verschluß nach Fig. 6 eignet sich insbesondere zur Anwendung mit einem Unversehrtheitsanzeigering 326, welcher sich längs spaltet, bevor alle Sollbruchbrücken 325 aufgetrennt werden. Der Unversehrtheitsanzeigering kann so an der Schraubkappe 311 angehängt verbleiben, oder er kann danach von den Benutzern manuell abgenommen werden. Diese Art von Verschluß wird dort bevorzugt, wenn der Behälter zum Recyceln vorgesehen ist, da der Behälter häufig aus einem Material besteht, das unterschiedlich zu dem des Verschlusses ist.Such a closure according to FIG. 6 is suitable especially for use with a Integrity indicator ring 326, which splits lengthways, before all predetermined breaking bridges 325 are opened. The The integrity indicator ring can thus be on the screw cap 311 remain attached, or it can then be accessed by users can be removed manually. This type of closure is there preferred if the container is intended for recycling because the container is often made of a material that is different from that of the closure.

Unter Hinwendung auf die fünfte Ausführungsform der Erfindung (Fig. 7 und 8) sind zur ersten Ausführungsform entsprechende Teile mit ähnlichen Bezugszeichen versehen worden, jedoch mit dem Prefix 5. Referring to the fifth embodiment of the Invention (Figs. 7 and 8) are for the first embodiment corresponding parts with similar reference numerals but with the prefix 5.

In der fünften Ausführungsform ist der Querschnitt der Lappen 539 generell rechteckförmig und beträchtlich dicker als die Wandung des oberen Wandabschnittes 527. Der Abschnitt 527 ist außerdem durch Längsschlitze segmentiert, wobei die Segmente der Breite der Lappen 539 entsprechen, so daß der Ring 526 während der Erstinstallation leicht ausgebeult werden kann, wie in Fig. 15 dargestellt. Der Querschnitt der Lappen 539 ist rechteckförmig mit leichter Verjüngung, um Stoßflächen zu bieten, die mit den Schraubwindungen und dem Wulst 57 zusammenarbeiten.In the fifth embodiment, the cross section is FIG Rag 539 generally rectangular and considerably thicker than the wall of the top wall section 527. The section 527 is also segmented by longitudinal slots, the Segments correspond to the width of the flaps 539, so that the Ring 526 bulged slightly during initial installation can be as shown in Fig. 15. The cross section of the Rag 539 is rectangular with a slight taper to To offer abutting surfaces with the screw turns and the Bead 57 work together.

Die Oberfläche 543 legt sich an der Oberfläche 59 des Behälterringwulstes 57 während des Abschraubens des Verschlusses an. Die sich entwickelnden Kräfte führen zu Momenten an den Sollbruchbrücken 525 infolge der Hebelwirkung über den Ring 526, was das leichte Aufreißen entlang der Rißlinie 530 begünstigt.The surface 543 lies on the surface 59 of the Container ring bead 57 while unscrewing the Closure. The developing forces lead to Moments at the predetermined breaking bridges 525 due to the leverage over the ring 526, which is easy tearing along the Crack line 530 favored.

Claims (10)

  1. Container-cap-combination forming a guaranteed closure comprising:
    a threaded cap (11) defining a cap axis and including an inner thread (22) and a tamper-indicating ring (26) which is connected to a main portion (20) through frangible bridges (25);
    a container (12) having a neck (50) provided with an outer thread (55) and an annular bead (57);
    the tamper-indicating ring (26, 126, 226, 326, 526) including an upper thinner cylindrical wall section (27, 127, 227, 327, 527) and a lower thicker wall section (28, 128, 228, 328, 528) having a bead at its inner side with an upper inner edge and a plurality of tabs (39, 139, 239, 339, 539) extending inwardly;
    the tabs (39, 139, 239, 339, 539) each comprising the shape of a polyhedron and forming, at their respective lower edges, the extensions of the upper inner edges of the lower wall section (28) of the tamper-indicating ring (26) so as to form a flexible area of thin cross-section (37, 137, 237, 337, 537) for tilting off the tabs at first installation of the closure (11) and for passing the tabs along the threads (55) and the container bead (57);
    the annular bead (57) of the containers (12) comprising a lower side (59) which is a portion of a conical surface having a large angle of opening and onto which the tabs (39) flatly engage with an engagement face area (43, 143, 243, 343, 543) when the threaded closure is unthreaded;
    characterized in that
    the engagement face (43, 143, 243, 343, 543) of the respective tabs (39, 139, 239, 339, 539) corresponds to the upper polyhedron side which is opposite to the appropriate flexible area of thin cross section at the lower edge of the polyhedron and
    in that, when the threaded closure (11) is installed, the engagement face (43, 143, 243, 343, 543) faces the lower side (59) of the container bead (57) and comes into planar contact to this lower side, when the threaded closure is unthreaded, wherein due to support of the engagement face onto the lower side of the container bead, a force is transferred directly through the respective flexible area of thin cross section into the tamper indicating ring (26, 126, 226, 326, 426, 526) so as to break the respective frangible bridges.
  2. Container-cap-combination according to claim 1 wherein the pressure force leading through the flexible area (37, 137, 237, 337, 537) is arranged relative to the frangible bridges (25, 125, 225, 325, 525) so that the tamper indicating ring (26, 126, 226, 326, 526) acts as a lever onto the frangible bridges (25, 125, 225, 325, 525) when unthreading the cap (11, 111, 211, 311, 511).
  3. The container-cap-combination according to claim 1 or 2 wherein the polyhedron has four sides in its basic shape, includes an upper edge (49) and when the tabs are in their unstressed conditions, extends with its sides (40, 41, 42, 43) obliquely to the threaded cap axis, the upper edge (49) of the tab (39) engaging the lower side (59) of the annular container bead (57) adjacent to the outer radial edge (60) thereof and the hinge (37) being arranged more radially inwardly in relation to the threaded cap axis than the engagement point of the tab (39) at the annular container bead (57) is.
  4. Container-cap-combination according to claim 3 wherein the tabs (39), when opening the closure, pivot radially outwardly by an angle of about 30°.
  5. Container-cap-combination according to claim 1 or 2 wherein when the tabs (239) are in the relative unstressed condition, the upper edges (249) thereof are in a vertical plane which passes essentially through the flexible area of thin cross section (237).
  6. Container-cap-combination according to one of the claims 1 to 5 wherein the tabs (39, 139, 239) are sufficiently long to be prevented from being pivoted essentially radially inwardly from the unstressed condition when opening the closure, a free edge (43, 148, 248) of each tab (39, 139, 290), when engaging the adjacent outer surface (2, 60) of the container neck, prevents any further pivotal movement downwardly.
  7. Container-cap-combination according to one of the claims 1 to 6 wherein the tab (239) comprises a radially outward surface or edge (246) which engages an inner surface (233) of the tamper indicating ring (226) when the tab is in its relative unstressed condition.
  8. Container-cap-combination according to one of the claims 1, 2 or 6 wherein the polyhedron has four faces (540, 541. 542, 543) forming a rectangle tapering slightly downwardly and wherein the upper side (543) of the polyhedron engages the lower side (59) of the annular container bead (57) when the threaded cap (11) is installed at the neck (50).
  9. Container-cap-combination according to one of the claims 1 to 8 wherein the upper thinner wall section (527) is segmented by axially extending slots so that the tamper indicating ring (526) may be expanded when initially installing the closure cap (511).
  10. Container-cap-combination according to claim 1 wherein the polyhedron cross section of the tabs (339) has five sides with a surface (343) facing upwardly which develops a force component radially outwardly against the tamper indicating ring (326) in cooperation with the lower side (59) of the annular container bead (57) when unthreading the cap (311) so as to split the ring (326) axially before the frangible bridges (325) break.
EP98114269A 1997-10-30 1998-07-30 Tamper-evident closure Expired - Lifetime EP0916587B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP00125667A EP1092640A1 (en) 1997-10-30 1998-07-30 Tamper evident closure

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US961235 1992-10-15
US08/961,235 US5979682A (en) 1997-04-14 1997-10-30 Tab construction for closures having tamper evident rings

Related Child Applications (1)

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EP00125667A Division EP1092640A1 (en) 1997-10-30 1998-07-30 Tamper evident closure

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EP0916587A1 EP0916587A1 (en) 1999-05-19
EP0916587B1 true EP0916587B1 (en) 2001-06-27

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EP00125667A Withdrawn EP1092640A1 (en) 1997-10-30 1998-07-30 Tamper evident closure

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EP00125667A Withdrawn EP1092640A1 (en) 1997-10-30 1998-07-30 Tamper evident closure

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US (2) US5979682A (en)
EP (2) EP0916587B1 (en)
AT (1) ATE202530T1 (en)
BR (1) BR9800599A (en)
DE (1) DE59803831D1 (en)
LT (1) LT4536B (en)
PE (1) PE49199A1 (en)

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Also Published As

Publication number Publication date
PE49199A1 (en) 1999-06-09
DE59803831D1 (en) 2002-05-23
US5992661A (en) 1999-11-30
EP1092640A1 (en) 2001-04-18
BR9800599A (en) 1999-06-15
EP0916587A1 (en) 1999-05-19
LT98119A (en) 1999-05-25
LT4536B (en) 1999-08-25
ATE202530T1 (en) 2001-07-15
US5979682A (en) 1999-11-09

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