EP0438789B1 - Verschlussvorrichtung - Google Patents

Verschlussvorrichtung Download PDF

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Publication number
EP0438789B1
EP0438789B1 EP19900125591 EP90125591A EP0438789B1 EP 0438789 B1 EP0438789 B1 EP 0438789B1 EP 19900125591 EP19900125591 EP 19900125591 EP 90125591 A EP90125591 A EP 90125591A EP 0438789 B1 EP0438789 B1 EP 0438789B1
Authority
EP
European Patent Office
Prior art keywords
cap
base
closure device
seal
inner rim
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
EP19900125591
Other languages
English (en)
French (fr)
Other versions
EP0438789A1 (de
Inventor
Christopher Noel Rudland
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.)
MCDONALD, DEREK
Original Assignee
Individual
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
Priority claimed from GB909001741A external-priority patent/GB9001741D0/en
Application filed by Individual filed Critical Individual
Publication of EP0438789A1 publication Critical patent/EP0438789A1/de
Application granted granted Critical
Publication of EP0438789B1 publication Critical patent/EP0438789B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/38—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents with thermal insulation
    • B65D81/3876—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents with thermal insulation insulating sleeves or jackets for cans, bottles, barrels, etc.
    • B65D81/3886—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents with thermal insulation insulating sleeves or jackets for cans, bottles, barrels, etc. formed of different materials, e.g. laminated or foam filling between walls
    • 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
    • B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
    • B65D77/04—Articles or materials enclosed in two or more containers disposed one within another
    • B65D77/048—Articles or materials enclosed in two or more containers disposed one within another the inner and outer containers being rigid and the outer container being of curved cross-section, e.g. cylindrical
    • B65D77/0486—Articles or materials enclosed in two or more containers disposed one within another the inner and outer containers being rigid and the outer container being of curved cross-section, e.g. cylindrical the inner container being coaxially disposed within the outer container
    • B65D77/0493—Articles or materials enclosed in two or more containers disposed one within another the inner and outer containers being rigid and the outer container being of curved cross-section, e.g. cylindrical the inner container being coaxially disposed within the outer container and retained at a distance of the inner side-wall of the outer container, e.g. within a bottle neck
    • 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
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/38—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents with thermal insulation
    • B65D81/3876—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents with thermal insulation insulating sleeves or jackets for cans, bottles, barrels, etc.
    • 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
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/38—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents with thermal insulation
    • B65D81/3876—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents with thermal insulation insulating sleeves or jackets for cans, bottles, barrels, etc.
    • B65D81/3881—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents with thermal insulation insulating sleeves or jackets for cans, bottles, barrels, etc. formed with double walls, i.e. hollow

Definitions

  • This invention relates to a closure device for closing an opened carbonated beverage can.
  • Carbonated beverages otherwise known as fizzy drinks, are sold in cans which conventionally have a ring-pull opening mechanism.
  • a ring secured to the top of the can is pulled, part of the top of the can itself is removed to leave a hole through which the drink can be dispensed.
  • a problem with such cans is that the opening cannot be resealed by the ring-pull mechanism.
  • the opened can is to be carried about, or is to be carried in a moving vehicle, then there is the risk of the contents being spilt.
  • a closure device for closing a dispensing opening of an opened carbonated beverage can, which can has a top with an outer rim and an inner rim, an annular gutter between the two rims and a top surface inside the inner rim and in which the opening of the can is located, wherein the device comprises a cap a cup-like base adapted to engage with the bottom of a can characterised in that the device comprises a flexible seal ring mounted in the cap and adapted to form a pressure-tight seal circumferentially against the inner rim of a can, and mating screw threads on the cap and on the base which threads can be screwed together in such a way that a tension force is created in the device between the bottom of the can and the cap to pull the seal against the inner rim of the can around the full circumference thereof thereby to seal the opening of the can from the atmosphere and to prevent escape of pressurised gas from within the can to the atmosphere.
  • Many carbonated beverage cans have an outer rim and an inner rim, an annular gutter between the two rims and a top surface inside the inner rim and in which the opening of the can is located. Such cans may be closed by the device of the invention.
  • the seal preferably has a diameter of between 50 and 60mm so that it will provide a seal on the rim of a conventional drinks can.
  • the seal may be formed by a flexible seal ring mounted in a lid.
  • the seal ring can be a push-fit in an annular socket in the lid.
  • the lid may have an internal integral formation which forms the flexible seal ring.
  • the device is formed in two parts; a cap which carries the seal, and a cup-like base.
  • the base locates under the bottom of a can or in a step near the bottom of the can, and the cap and the base can be secured together in such a way that a tension force is created in the device between the bottom of the can and the cap to pull the seal against the rim of the can. This force is counteracted by a compression force arising in the walls of the can.
  • the cap can be secured onto the base by screwing together threads formed on the cap and the base.
  • the axis of rotation on which the screw threads are screwed together will correspond with the axis of the cylindrical can.
  • the complementary threads are part of the seal securing means which produce the desired tension force in the device. There may be a stop formed to prevent overtightening which might lead to crushing of the can.
  • a valve can be provided in the cap. This valve may operate automatically to release pressure above a certain threshold pressure, or may be user operated, for example so that the pressure can be released before the cap is opened.
  • the base and the cap may be provided with thermal insulation to keep the can and its contents cool.
  • the insulation may be an integral part of the material of the base and/or the cap, or alternatively may be provided by a filling between inner and outer skins which form the base and the cap. If desired, drainage holes can be fitted in the base of a thermally insulated device so that condensation can drain away.
  • the external wall of the cap and the wall of the base may be provided with ribbing or the equivalent to help in screwing and unscrewing the cap from the base.
  • either the base or the cap or both may have apertures formed in their walls. This can help to prevent condensation forming on the wall of the can as well as providing a grip for the hands and exposing part of the can itself so that the identity of the can inside the device can be established.
  • the base may be designed to accommodate the largest can size, and when a smaller can size is to be used, a packing slug can be placed in the base before the can is put in, to occupy the extra length.
  • the slug may be made of or may contain a material which can be frozen before use and which will be in contact with the can to assist in keeping the can contents cool.
  • the can shown in Figure 1 has a top 1, a bottom 2 and side walls 3.
  • the top has an outer rim 4.
  • a top surface 5 is surrounded by a gutter 6, with an inner rim 7 forming the outer edge of the top surface.
  • a ring-pull closure 8 can be pulled to open a dispensing opening 9.
  • the closure device shown in Figures 3 to 5 relating to a further development consists of a base 10 and a cap 12.
  • the base and the cap define a cavity between them which is dimensioned so as to receive a standard sized drinks can, for example a 330 ml fizzy drink can as shown in Figures 1 and 2.
  • the bottom of the can sits on the bottom 14 of the base 10.
  • the cap 12 has two internal ridges 18b and 18c which provide a socket in which a seal ring 37 is fitted.
  • the internal annular ridge 18b on the cap 12 will engage with the inner flank 20 of the outer rim 4 on the can 22 to form a seal and the flexible seal ring 37 will seal against the top of the can.
  • the thread 16 can be a coarse thread with a number of starts.
  • the can 22 has had its ring pull closure removed so that the top of the can has an opening 24.
  • This opening now communicates with a space 26 above the can, but this space is bounded by the seal formed between the ring 37 and the can top and between the ridge 18 and the flank 20. If the can is shaken around, some liquid from the can may pass through the opening 24 into the space 26, but it can go no further than this, and because of the nature of the seal between the ridge and the flank, pressure tightness of the can will be maintained.
  • the can has a ring-pull of the type which remains attached to the can, as seen in Figure 2, then this ring-pull can be accommodated in the space 26.
  • Figure 4 shows the exterior of the closure device. It will be seen in this Figure that the base 10 has oval shaped cut-outs or apertures 36 which allow the can to be seen in the interior of the device, and also allow air to circulate around the can to prevent condensation being formed on the outside of the can. Figures 3 and 4 also show a shoulder 38 on the base 10 which forms a stop for screwing up movement of the cap 12 to prevent overtightening taking place.
  • Figure 5 shows the sealing arrangement of Figure 3 in more detail.
  • the can 22 has a top surface 5, an annular gutter 6 around the outside of the surface 5, an inner rim 7 and an outer rim 4.
  • the cap 12 of the closure device has two internal ridges 18b and 18c. Both ridges lie inside the circle of the rim 4 and between them define an annular socket in which the seal ring 37 is fitted.
  • a first seal is established between the ridge 18b and a flank 34 of the rim 4
  • a second seal is established between the internal rim 7 and the seal body 37.
  • the cap 12 has two internal ridges 18d and 18e which form an annular socket receiving an annular seal ring 37a.
  • the ridge 18d is shorter than the ridge 18b of Figure 5 and does not itself form a seal.
  • the sealing function in this embodiment is performed entirely by the ring 37a.
  • the bottom edge of the ring 37a is formed so that it creates a primary seal against the inner rim 7 and a secondary seal by the engagement of an outer lip 39 in the gutter 6.
  • a rib 41 is also compressed against the top surface 5 of the can 22 to improve the 'feel' experienced by the user when screwing down the cap 12.
  • Figure 7 shows a base 10c and a cap 12c both of which have inner and outer skins 60, 62 with a layer 64 of thermal insulation between the skins.
  • the inner and outer skins 60, 62 are separate moulding (two mouldings for the base and two mouldings for the cap).
  • the thermal insulation 64 is formed as a separate pre-formed component of a size sufficient to fit comfortably in the cavity between the inner and the outer skins. Forming the insulation in this way rather than foaming in place provides a quick and reliable assembly technique which does not require a waiting stage while a foam is formed and cures. After assembly of the three parts (inner skin, insulation and outer skin) the inner and outer skins are bonded permanently together by an ultra sonic weld around the joint 66.
  • the outer skin 62 of the base 10c also has drain holes 68.
  • the inner skins 60 of the base and of the cap carry the threads which connect the two parts and also the seal which, in use, will provide a seal at the top end of a drinks can.
  • the ridges 18d and 18e are shown, but with the sealing ring 37a of that Figure omitted.
  • Figure 7 also shows axial ribs 70 which help to centre the cap when it is screwed onto the base with a can in place.
  • the threads 16 which connect the cap and the base are preferably coarse, multi-start threads (for example there may be three starts), and the thread profile as shown in Figure 9 has been found to be suitable. There is axial play between the flanks of the thread until the cap is screwed up tight onto a can; at which time the play is taken up.
  • Figure 8 shows an insulated closure device with many of the features already described with reference to Figure 7.
  • the sealing ring 37a is shown in place.
  • the base 10c does not differ from that shown in Figure 7, but the cap 12d has a pressure release passage 72 which is normally closed by a screw-on cap 74.
  • the passage 71 may also constitute a drinking spout.
  • the screw-on lid 74 may have a non-round shape so that it is easy to grip and turn.
  • the passage 72 can easily be incorporated in the manufacturing process by making the walls of the passage 72 integral with the inner skin 60; making a suitable cut-out in the insulation foam 64 and in the outer skin 62, and then assembling the outer skin over the spout-like end of the passage 72 in the manner indicated in Figure 10 where the outer skin 62 snaps beneath an external bead 78.
  • Figure 8 also shows the use of a packing slug 76 which can be placed in the bottom of the base 10c when the device is to be used with a smaller can. With the slug 76 in place, the bottom of the can will sit on the top of the slug so that the top of the can is in the correct relationship with the cap 12d.
  • the use of such a slug, or a range of slugs of different sizes, can allow one device to be used with cans of a corresponding range of sizes.
  • the slug 76 may contain a material which can easily be frozen and which acts as a cooling device in the base, beneath the bottom of the can and in heat-transmitting contact with the base of the can.
  • the closure device shown in the various embodiments of the drawings is simple and effective to operate and serves the primary function of sealing the opened can without allowing any escape of gas which might allow the drink to go flat. It is helpful if the can is a tight fit in the base 10 so that once the cap has been unscrewed, the can can be held by holding the base.
  • the components of the closure device can be easily moulded from plastics materials.
  • Food grade polypropylene for example the material sold by Repsol of France under the Trade Mark Isplen and the designations PP/080 and PP/095 has been found to be suitable.
  • a suitable rubber for the sealing ring inside the cap is the thermoplastic rubber sold by the Monsanto company under the Trade Mark Santoprene, Grade 177.
  • the force which is needed to make and maintain a seal around the open part of the can is generated by fitting an abutment beneath the bottom of the can and then putting into tension linking means which connect the seal to the abutments.
  • the abutments do not need to completely enclose the bottom of the can; they may only engage under part of the can bottom or, where the can has a stepped bottom formation as at 43 in Figure 1, the abutment may engage under the step at the bottom rather than fully under the bottom.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)

Claims (6)

  1. Eine Verschlußvorrichtung zum Verschließen einer Ausgabeöffnung (24) einer geöffneten Dose (22) für ein kohlesäurehaltiges Getränk, die eine Oberseite mit einem äußeren Rand (4) und einem inneren Rand (7), eine ringförmige Rinne (6) zwischen den zwei Rändern (4,7) und eine obere Fläche (5) innerhalb des inneren Randes, in der die Öffnung (24) der Dose (22) angeordnet ist, aufweist, wobei die Vorrichtung eine Kappe (12) und einen kappenähnlichen Grundkörper (10), der zum Eingriff mit dem Boden einer Dose (22) angepaßt ist, umfaßt, dadurch gekennzeichnet, daß die Vorrichtung einen in der Kappe (12) befestigten flexiblen Dichtungsring (37,37a), der zur Bildung einer umfangsmäßigen druckdichten Dichtung gegen den inneren Rand der Dose (22) angepaßt ist, und zusammenpassende Schraubengewinde (16) an der Kappe (12) und dem Grundkörper (10) aufweist, wobei die Gewinde so miteinander verschraubbar sind, daß in der Vorrichtung zwischen dem Boden der Dose (22) und der Kappe (12) eine Spannkraft erzeugt wird, die die Dichtung (37,37a) gegen den inneren Rand (7) der Dose rings um ihren gesamten Umfang zieht, wodurch die Öffnung (24) der Dose gegen die Athmosphäre abgedichtet wird und ein Entweichen des Druckgases aus der Dose zur Athmosphäre verhindert wird.
  2. Eine Verschlußvorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß ein Ventil (72,74) in der Kappe (12) vorgesehen sein kann, um ein schnelles Entspannen des Innendrucks in der Vorrichtung zu ermöglichen.
  3. Eine Verschlußvorrichtung nach Anspruch 1 oder Anspruch 2, die eine Umhüllung bildende Wände (10,12) aufweist, in der eine Dose angeordnet werden kann, dadurch gekennzeichnet, daß die Wände mit einer thermischen Isolierung (64) versehen sind, um die Dose und ihren Inhalt kühl zu halten.
  4. Eine Verschlußvorrichtung nach Anspruch 3, dadurch gekennzeichnet, daß die Isolierung durch eine Füllung (64) zwischen inneren (60) und äußeren (62) Häuten, die die Wände der Umhüllung bilden, geschaffen wird.
  5. Eine Verschlußvorrichtung nach irgendeinem der vorhergehenden Ansprüche zur Verwendung mit Dosen unterschiedlicher Länge, dadurch gekennzeichnet, daß ein Grundkörper (10) der Vorrichtung zur Aufnahme der längsten Dosengröße ausgelegt ist und mit einem Anpaßkörper (76) kombiniert ist, der in den Grundkörper vor dem Einbringen einer kürzeren Dose angeordnet wird, um die Überlänge des Grundkörpers einzunehmen.
  6. Eine Verschlußvorrichtung nach Anspruch 5, dadurch gekennzeichnet, daß der Anpaßkörper aus einem Material besteht oder ein Material enthält, daß vor dem Gebrauch gefrierbar ist und mit der Dose in Berührung steht, um die Kühlung des Doseninhalts zu unterstützen.
EP19900125591 1990-01-25 1990-12-27 Verschlussvorrichtung Expired - Lifetime EP0438789B1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB9001741 1990-01-25
GB909001741A GB9001741D0 (en) 1990-01-25 1990-01-25 A closure device
GB9017829 1990-08-14
GB909017829A GB9017829D0 (en) 1990-01-25 1990-08-14 A closure device

Publications (2)

Publication Number Publication Date
EP0438789A1 EP0438789A1 (de) 1991-07-31
EP0438789B1 true EP0438789B1 (de) 1995-11-22

Family

ID=26296548

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900125591 Expired - Lifetime EP0438789B1 (de) 1990-01-25 1990-12-27 Verschlussvorrichtung

Country Status (6)

Country Link
EP (1) EP0438789B1 (de)
AU (1) AU7000591A (de)
CA (1) CA2034890A1 (de)
DE (1) DE69023756T2 (de)
ES (1) ES2083419T3 (de)
GR (1) GR3019070T3 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2316319A1 (es) * 2008-09-27 2009-04-01 Ignacio Lorente Echevarria Elemento protector para latas de bebida.
WO2010034868A1 (es) * 2008-09-27 2010-04-01 Lorente Echevarria Ignacio Elemento protector para latas de bebida.

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1254161B (it) * 1991-09-16 1995-09-11 Sandro Rocchi Struttura di contenitore
DE9302179U1 (de) * 1993-02-16 1994-06-16 Erlhöfer, Fabian, 58566 Kierspe Cremedose
BE1012060A3 (fr) * 1998-07-06 2000-04-04 Dewincklear Dimitri Objet isolant thermique qui a pour fonction de contenir une canette de boisson pour l'isoler de la temperature exterieure.
FR2896488B1 (fr) * 2006-01-24 2008-03-28 Faurecia Interieur Ind Snc Cuve munie d'une isolation thermique et son procede de fabrication
FR2915975B1 (fr) * 2007-05-11 2011-06-10 Pascal Allemand Etui fraicheur pour boite de soda standard munie d'un porte cendrier
US8490838B2 (en) 2007-07-13 2013-07-23 Monster Energy Company Liquid dispenser
WO2009012100A1 (en) * 2007-07-13 2009-01-22 Hansen Beverage Company Liquid dispenser
US20130248537A1 (en) * 2012-03-22 2013-09-26 Thermos L.L.C. Food transport and storage container having removable inner container and insulating outer sleeve
TWI538642B (zh) * 2013-03-20 2016-06-21 皇冠金屬工業股份有限公司 具有可移動式內容器及隔熱外套筒之食物儲運容器
EP3489170A1 (de) * 2017-11-27 2019-05-29 Naji Ulrich Khan Niazi Verpackungshülse für eine getränkedose

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8701600U1 (de) * 1987-02-03 1987-06-04 Krames, Peter, 6600 Saarbrücken Vorrichtung zum Kühl- und Frischhalten von in handelsüblichen Blechdosen eingefüllten Getränken
US4752016A (en) * 1987-12-10 1988-06-21 Eads Stephen R Beverage can closure
FR2645501B1 (fr) * 1989-04-05 1991-09-06 Wurtlin Werner Recipient pour la conservation de denrees perissables livrees en boites de conserve

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2316319A1 (es) * 2008-09-27 2009-04-01 Ignacio Lorente Echevarria Elemento protector para latas de bebida.
WO2010034868A1 (es) * 2008-09-27 2010-04-01 Lorente Echevarria Ignacio Elemento protector para latas de bebida.

Also Published As

Publication number Publication date
ES2083419T3 (es) 1996-04-16
DE69023756T2 (de) 1997-02-20
CA2034890A1 (en) 1991-07-26
EP0438789A1 (de) 1991-07-31
AU7000591A (en) 1991-08-01
DE69023756D1 (de) 1996-01-04
GR3019070T3 (en) 1996-05-31

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