EP0430195B1 - Fermeture à vis formé par étirage d'aluminium pour bouteilles en verre sous pression interne, ainsi que dispositif d'étirage pour tête de fermeture destiné à la fabrication de telles fermetures à vis - Google Patents

Fermeture à vis formé par étirage d'aluminium pour bouteilles en verre sous pression interne, ainsi que dispositif d'étirage pour tête de fermeture destiné à la fabrication de telles fermetures à vis Download PDF

Info

Publication number
EP0430195B1
EP0430195B1 EP90122705A EP90122705A EP0430195B1 EP 0430195 B1 EP0430195 B1 EP 0430195B1 EP 90122705 A EP90122705 A EP 90122705A EP 90122705 A EP90122705 A EP 90122705A EP 0430195 B1 EP0430195 B1 EP 0430195B1
Authority
EP
European Patent Office
Prior art keywords
deep
closure
stop
glass bottle
rotary
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
EP90122705A
Other languages
German (de)
English (en)
Other versions
EP0430195A1 (fr
Inventor
Herni Haist
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.)
HVB Innova AG
Original Assignee
hvb Haist Verpackungs-Beratung
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
Application filed by hvb Haist Verpackungs-Beratung filed Critical hvb Haist Verpackungs-Beratung
Publication of EP0430195A1 publication Critical patent/EP0430195A1/fr
Application granted granted Critical
Publication of EP0430195B1 publication Critical patent/EP0430195B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67B—APPLYING CLOSURE MEMBERS TO BOTTLES JARS, OR SIMILAR CONTAINERS; OPENING CLOSED CONTAINERS
    • B67B3/00—Closing bottles, jars or similar containers by applying caps
    • B67B3/02—Closing bottles, jars or similar containers by applying caps by applying flanged caps, e.g. crown caps, and securing by deformation of flanges
    • B67B3/10—Capping heads for securing 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
    • B65D79/00—Kinds or details of packages, not otherwise provided for
    • B65D79/005—Packages having deformable parts for indicating or neutralizing internal pressure-variations by other means than venting
    • B65D79/0087—Packages having deformable parts for indicating or neutralizing internal pressure-variations by other means than venting the deformable part being located in a closure, e.g. in caps or lids

Definitions

  • the invention relates to a deep-drawn screw cap made of aluminum, in particular with a diameter of less than 35 mm for glass bottles under internal pressure, with an upper end surface, a lateral thread surface and optionally a locking ring, with on the inside of the end surface, in particular close to the transition to the thread surface, a sealing compound is arranged, by means of which sealing takes place along the mouth edge of a glass bottle when the closure is deformed.
  • the invention relates to a deep-drawing device for a closing head for producing aluminum twist-off closures for glass bottles under internal pressure with a die that can be plugged onto a blank from above and has a plurality of concentric recesses that become smaller from the outside inwards, the first recess continuously extending from the outside to the outside tapered on the inside to approximately the largest outside diameter of the screw cap, followed by a second recess with a constant diameter and finally followed by a third recess with a smaller diameter, which is used to deep-draw the blank down to the side mouth of a glass bottle and in the third Incidentally, a stop (abutment) is slidably held in the recess, which can be pressed against the force of a compression spring into the interior of the die.
  • Deep-drawn twist locks are known in which the upper end surface is always curved upwards (domed) is. While the curvature is generally only slight after the closing process has ended, it subsequently increases under the influence of the internal pressure. However, this only applies to intact glass bottles with perfect screw caps, because only then can an effective internal pressure build up. Thus, the specified change in deformation can in principle be an indicator of the proper condition and filling of the glass bottle or, in other words, of its tightness.
  • twist-off closures of relatively large diameter, as are known in practice as so-called twist-off closures.
  • twist locks with smaller diameters, i.e. less than 35 mm, the deformation changes are even so limited that they are ruled out for practical measurements and are therefore not made.
  • Such glass bottles nowadays leave the filling stations in large quantities (annually in the FRG annually to 10 billion pieces and throughout Europe annually to 30 billion pieces). Their tightness is simply assumed, or the glass bottles are only checked for leaks on a random basis (e.g. 1 - 2 bottles per 100,000 pieces or hour), the screw caps being pierced and gas samples taken.
  • the twist locks are inevitably damaged or destroyed.
  • an estimated error rate of 1 bottle per 10,000 pieces such a tightness check is extremely random and unsatisfactory, especially where it is associated with the destruction of the screw caps.
  • the initial state of a glass bottle under internal pressure should be such that the upper end surface, i.e. its central area is not already bulged or domed; rather, a curvature directed into the interior of the glass bottle is initially provided.
  • This type of deformation allows a larger and thus also easier and more reliable measurement of the change in the upper end surface when the internal pressure builds up.
  • the curvature normally regresses, so to speak, in the direction of a zero position (at the level of the upper edge of the mouth), in order to then appear again above this zero position.
  • the present invention is used for measurement technology. Compared to the previous measuring technology (for twist locks with a relatively large diameter), the proposal of the invention means that not only gradual differences of a rectified deformation have to be detected, but a reversal of direction in the deformation as an additional recognition feature - with more mobility - is added , which makes control easier and also safer.
  • the proposal of the invention means that it is possible for the first time to detect and sort out leaky bottles due to measurable changes in deformation. The changes can be detected so reliably and quickly that fully automatic control measurements can be carried out in the filling or closing cycle.
  • the proposed screw cap can be produced from a blank during the closing process by deforming the same, expediently such that after placing a blank on the bottle mouth, the upper end face is first pressed into the inside of the bottle and then the blank is deep drawn and the thread is rolled. This creates deformation planes without abrupt or abrupt transitions and also gives the upper end surface sufficient mobility.
  • the invention cannot be implemented with preforms which have already been correspondingly deformed. Permanent pre-deformation can generally only be achieved through special deformation measures, such as beads or the like. This, in turn, would inevitably limit later mobility, which is required for control measurements.
  • pre-deformation causes difficulties for the introduction of the sealing compound, in particular the insertion of a (flat) sealing washer and the like. Another difficulty is centering. This is not guaranteed in the case of pre-deformation, ie the deepest vertex would not necessarily reach the center of the mouth, where later the control measurement should take place.
  • the upper end surface with its central area should be pressed into the interior of the glass bottle at least 0.4 mm (below the upper mouth rim) after the closing process and should be deformable in the opposite direction by a similar amount.
  • the upper end surface with its central area is advantageously pressed into the interior of the glass bottle by about 0.7 mm (below the upper mouth edge) and deformable in the opposite direction by a similar amount.
  • the invention proposes that the stop has a central pressing surface which protrudes somewhat beyond the base of the stop and is arranged concentrically with the central axis of the die.
  • the middle pressure surface can - like the rest of the base surface - be essentially flat. In particular, it can have the shape of a truncated cone have. Otherwise, it is chosen so that the curvature of the upper end surface of the screw cap is not pressed against the inner surface of the bottle mouth.
  • the device according to the invention differs significantly from a known device according to GB-A-1 033 135. With this device, the upper end surface is pressed in as completely as possible, its curvature being pressed against the inner surface of the bottle mouth.
  • the middle pressure surface should be at least 0.4 mm emerge from the base of the stop. - The middle pressure surface protrudes about 0.7 mm above the base of the stop.
  • the ratio of the diameter of the middle contact surface to the entire base area of the stop is at least 1: 2. This means that not only a partial deformation but also a flat deformation takes place.
  • the upper end face 4 of the twist lock is the central region 7 slightly pressed into the inside of the glass bottle, i.e. below its upper rim 1. As a rule, it is an unstable state of the kind that only exists and should exist initially.
  • the upper end surface 4 i.e. raise the central region 7 above the plane of the upper mouth edge 1, which could be called a kind of zero position, and deform it in the opposite direction, as shown by solid lines in FIG. 2.
  • This change in deformation is almost certainly visually recognizable, but in any case it can be measured simply and reliably using measuring technology.
  • this state can only be achieved with intact glass bottles and tight closures or sufficient gas addition, which is why it can be described as correct. It should definitely be reached and should continue until the products are used up.
  • the shape described above ie the outward curvature of the central region 7 of the upper end face 4 can also change regress. If the pressure loss becomes effective immediately after the filling or closing and possibly pasteurizing process, i.e. with the manufacturer, a complete reset and thus reliable detection can be expected. If, on the other hand, the leakage occurs later (at the retailer, consumer), a partial reset to approximately zero is more likely, as is indicated by dashed lines.
  • Fig. 3 illustrates the basic structure of a deep drawing device according to the invention for a closing head for producing the aforementioned twist locks.
  • a die 8 has three recesses 10, 11, 12 concentric with a central axis 9.
  • the first recess 10 tapers continuously from the outside inwards to approximately the largest outside diameter of the twist lock.
  • the second recess 11 with a constant diameter.
  • the third recess 12 with a smaller diameter, which serves to deep-draw the blank down to the lateral mouth edge 2.
  • a stop 13 is slidably held, i.e. it can be pressed against the force of a compression spring 14 into the interior of the die 8, as shown with the left half of FIG. 3. This state is reached after the deep drawing.
  • the stop 13 is then pressed in relative to its starting position shown with the right half by the amount of the intended drawing depth (for example 2.6 mm).
  • the upper end face 4, namely with its central region 7, is additionally deformed, namely somewhat pressed into the inside of the glass bottle.
  • This is ensured by a central pressing surface 15, which protrudes somewhat beyond the base surface 16 of the stop 14.
  • the middle pressing surface 15 is arranged concentrically around the central axis 9 and here approximately frustoconical; their diameter is in relation to the diameter of the base surface 16 in a ratio of at least 1: 2 and thus allows large-area deformation.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
  • Sealing Of Jars (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)

Claims (7)

  1. Fermeture à vis en aluminium emboutie sur la bouteille, en particulier d'un diamètre inférieur à 35 mm, pour des bouteilles en verre sous pression intérieure, comprenant une surface de fermeture supérieure (4), une surface filetée latérale (5) et une bague d'inviolabilité, le cas échéant, cependant qu'est disposée sur le côté intérieur de la surface de fermeture (4), et en particulier au voisinage de la transition vers la surface filetée (5), une masse d'étanchéité (6) au moyen de laquelle une étanchéité est obtenue le long du bord (1, 2) de l'embouchure d'une bouteille en verre lorsque la déformation de la fermeture est terminée, caractérisée par le fait qu'immédiatement après la fin de l'opération de fermeture, la surface de Fermeture supérieure (4) est poussée par sa zone centrale (7) jusque dans une position qui est située au-dessous du bord supérieur (1) de l'embouchure de la bouteille en verre et depuis laquelle la zone centrale (7) se bombe normalement sous l'effet de la pression intérieure de la bouteille en verre, lorsque la bouteille en verre est fermée d'une manière étanche, pour venir dans une position qui est située au-dessus de la surface de fermeture supérieure (4).
  2. Fermeture à vis selon la revendication 1, caractérisée par le fait qu'après la fin de l'opération de fermeture, la surface de fermeture supérieure (4) est poussée par sa zone centrale (7) jusque dans une position qui est située d'au moins 0,4 mm au-dessous du bord supérieur (1) de l'embouchure de la bouteille en verre.
  3. Fermeture à vis selon la revendication 1, caractérisée par le fait qu'après la fin de l'opération de fermeture, la surface de fermeture supérieure (4) est poussée par sa zone centrale (7) jusque dans une position qui est située jusqu'à 0,7 mm au-dessous du bord supérieur (1) de l'embouchure de la bouteille en verre.
  4. Dispositif d'emboutissage pour une tête de fermeture destinée à la fabrication de fermetures à vis selon l'une des revendications 1 à 3, comprenant une matrice (8) qui peut être enfoncée depuis le haut sur une ébauche et qui présente plusieurs évidements concentriques (10, 11, 12) devenant plus petits de l'extérieur vers l'intérieur, cependant que le premier évidement (10) se rétrécit continûment de l'extérieur vers l'intérieur, à peu près jusqu'au plus grand diamètre extérieur de la fermeture à vis, qu'un deuxième évidement (11) dont le diamètre est constant se raccorde au premier, et qu'il est enfin suivi par un troisième évidement (12) qui présente un diamètre plus faible et qui sert à l'emboutissage de l'ébauche jusqu'au bord latéral (2) de l'embouchure d'une bouteille en verre, et cependant qu'une butée (13) est par ailleurs maintenue d'une manière coulissante dans le troisième évidement (12) en pouvant être poussée dans l'intérieur de la matrice (8) à l'encontre de la force d'un ressort de compression (14), caractérisé par le fait que la butée (13) présente une surface centrale de poussée (15) qui fait légèrement saillie au-delà de la surface de base (16) de la butée (13) en étant disposée d'une manière concentrique par rapport à l'axe central (9) de la matrice (8) et en étant choisie d'une manière telle que le renflement de la surface de fermeture supérieure de la fermeture à vis ne soit pas serré contre la surface intérieure de l'embouchure de la bouteille.
  5. Dispositif d'emboutissage selon la revendication 4, caractérisé par le fait que la surface centrale de poussée (15) fait saillie d'au moins 0,4 mm au-delà de la surface de base (16) de la butée (13).
  6. Dispositif d'emboutissage selon la revendication 4 ou 5, caractérisé par le fait que la surface centrale de poussée (15) fait saillie jusqu'à 0,7 mm au-delà de la surface de base (16) de la butée (13).
  7. Dispositif d'emboutissage selon l'une des revendications 4 à 6, caractérisé par le fait que le rapport entre le diamètre de la surface centrale de poussée (15) et celui de l'ensemble de la surface de base (16) de la butée (13) est au moins égal à 1/2.
EP90122705A 1989-12-01 1990-11-28 Fermeture à vis formé par étirage d'aluminium pour bouteilles en verre sous pression interne, ainsi que dispositif d'étirage pour tête de fermeture destiné à la fabrication de telles fermetures à vis Expired - Lifetime EP0430195B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3939783 1989-12-01
DE3939783A DE3939783A1 (de) 1989-12-01 1989-12-01 Tiefgezogener drehverschluss aus aluminium fuer unter innendruck stehende glasflaschen sowie tiefziehvorrichtung fuer einen verschliesskopf zum herstellen derartiger drehverschluesse

Publications (2)

Publication Number Publication Date
EP0430195A1 EP0430195A1 (fr) 1991-06-05
EP0430195B1 true EP0430195B1 (fr) 1996-03-20

Family

ID=6394607

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90122705A Expired - Lifetime EP0430195B1 (fr) 1989-12-01 1990-11-28 Fermeture à vis formé par étirage d'aluminium pour bouteilles en verre sous pression interne, ainsi que dispositif d'étirage pour tête de fermeture destiné à la fabrication de telles fermetures à vis

Country Status (4)

Country Link
EP (1) EP0430195B1 (fr)
JP (1) JPH03176397A (fr)
AT (1) ATE135654T1 (fr)
DE (2) DE3939783A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19515687C2 (de) * 1995-04-28 1997-08-28 Helmut Patzelt Verschluß für Gefäße, insbesondere Flaschen
CN1107562C (zh) * 2000-01-19 2003-05-07 南京谷里五金厂 一种包装容器钢桶封闭器螺圈加工的新工艺
GB2409447B (en) * 2003-12-22 2006-10-18 Smp Multi Shot Ltd Closure for a liquid container

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2729381A (en) * 1952-03-12 1956-01-03 Wiser Jacques Nicolas Process and devices for the submitting successively of bottles and other receptacles to exhaustion and pressure
GB975739A (en) * 1962-04-27 1964-11-18 Metal Closures Ltd Improvements in or relating to closures for containers and methods of applying the same
BE659362A (fr) * 1964-02-05
DE2201428A1 (de) * 1972-01-13 1973-07-19 Hassler & Sommer Verfahren zur herstellung von behaelterverschlusskappen und durch dieses verfahren hergestellte verschlusskappen
DE2404480A1 (de) * 1974-01-31 1975-08-07 Philipp Massott System zum anrollen von gewindeverschluessen mit feststehenden formteilen
DD143359A3 (de) * 1978-03-22 1980-08-20 Reinhard Hagemann Vorrichtung zur kontrolle des vakuums in behaeltern
AU538613B2 (en) * 1980-09-15 1984-08-23 Aci Australia Limited Clicker screw-cap, vacuum release indicating
DE3642998C1 (de) * 1986-12-17 1988-05-19 Haist Verpackung Beratung Tiefgezogener Drehverschluss aus Aluminium fuer unter Innendruck stehende Glasflaschen sowie Tiefziehvorrichtung fuer einen Verschliesskopf zum Herstellen derartiger Drehverschluesse
DE8710066U1 (de) * 1987-07-23 1987-10-22 Fa. Hermann Heye, 3063 Obernkirchen Verpackungsbehälter mit Schraubmundstück und Anrollverschluß

Also Published As

Publication number Publication date
DE59010216D1 (de) 1996-04-25
DE3939783A1 (de) 1991-06-06
EP0430195A1 (fr) 1991-06-05
ATE135654T1 (de) 1996-04-15
JPH03176397A (ja) 1991-07-31
DE3939783C2 (fr) 1993-02-18

Similar Documents

Publication Publication Date Title
EP2475608A2 (fr) Capsuleuse et procédé de fermeture de récipients
DE3206245A1 (de) Bausatz fuer einen kappenverschluss
DE3033531A1 (de) Vorrichtung zur pruefung von glasbehaeltern
DE102017104343A1 (de) Vorrichtung und Verfahren zum Befüllen eines Behälters mit einem Füllprodukt
EP0529383B1 (fr) Capuchon à vis en plastique pour bouteilles sous pression
EP0430195B1 (fr) Fermeture à vis formé par étirage d'aluminium pour bouteilles en verre sous pression interne, ainsi que dispositif d'étirage pour tête de fermeture destiné à la fabrication de telles fermetures à vis
DE4239238A1 (de) Verfahren sowie Vorrichtung zum Füllen von Flaschen oder dergleichen Behälter aus Kunststoff (insbesondere PET-Flaschen) mit einem flüssigen Füllgut
EP4176240A1 (fr) Procédé et dispositif de vérification d'étanchéité de fermeture
EP2989435B1 (fr) Procédé et dispositif permettant le contrôle de l'étanchéité de contenants de grand volume
EP1755973B1 (fr) Element de fermeture
EP2583933A1 (fr) Déflecteur pour un tuyau de gaz de retour pour une soutireuse des bouteilles
EP3887789B1 (fr) Détection de fuite
DE3642998C1 (de) Tiefgezogener Drehverschluss aus Aluminium fuer unter Innendruck stehende Glasflaschen sowie Tiefziehvorrichtung fuer einen Verschliesskopf zum Herstellen derartiger Drehverschluesse
EP1545998B1 (fr) Bouchon a vis pour contenants sous pression
EP2473831B1 (fr) Procédé ainsi que dispositif de contrôle permettant de contrôler sans contact l'étanchéité de matériaux d'emballage
DE8914181U1 (de) Tiefgezogener Drehverschluß aus Aluminium für unter Innendruck stehende Glasflaschen sowie Tiefziehvorrichtung für einen Verschließkopf zum Herstellen derartiger Drehverschlüsse
EP1064529B1 (fr) Procede et dispositif pour controler l'etancheite de contenants d'emballage dont l'air a ete evacue
DE19946951A1 (de) Verschließstation für eine Verschließmaschine umlaufender Bauart
EP4159638B1 (fr) Récipient pour fluide avec capuchon de fermeture
DE4401751A1 (de) Verschluß für Behälter
DE2802312C3 (de) Verschließkopf für Bördelkappen
DE19849834C1 (de) Sicherheitsverschluß für Behälter
EP1161399B1 (fr) Outil de formage, procede et fermeture pour fermer des contenants
EP0900742A1 (fr) Capuchon à vis en matière plastique
DE19827242A1 (de) Verschlußkappe, insbesondere Schraubkappe aus Kunststoff mit Garantieband

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 DK ES FR GB IT LI LU NL SE

17P Request for examination filed

Effective date: 19911114

17Q First examination report despatched

Effective date: 19930125

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

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 DK ES FR GB IT LI LU NL SE

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 FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRE;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.SCRIBED TIME-LIMIT

Effective date: 19960320

Ref country code: GB

Effective date: 19960320

Ref country code: BE

Effective date: 19960320

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 19960320

Ref country code: ES

Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

Effective date: 19960320

Ref country code: DK

Effective date: 19960320

REF Corresponds to:

Ref document number: 135654

Country of ref document: AT

Date of ref document: 19960415

Kind code of ref document: T

REF Corresponds to:

Ref document number: 59010216

Country of ref document: DE

Date of ref document: 19960425

REG Reference to a national code

Ref country code: CH

Ref legal event code: PUE

Owner name: HVB HAIST VERPACKUNGS-BERATUNG TRANSFER- HVB HAIST

Ref country code: CH

Ref legal event code: NV

Representative=s name: PATENTANWALTSBUERO EDER AG

RAP2 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: HVB INNOVA AG

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

Ref country code: SE

Effective date: 19960620

ET Fr: translation filed
NLT2 Nl: modifications (of names), taken from the european patent patent bulletin

Owner name: HVB INNOVA AG

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
GBV Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed]

Effective date: 19960320

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

Ref country code: AT

Effective date: 19961128

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: 19961130

Ref country code: CH

Effective date: 19961130

Ref country code: LI

Effective date: 19961130

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

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

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
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

Effective date: 19970731

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

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

Ref country code: DE

Payment date: 19980121

Year of fee payment: 8

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

Ref country code: DE

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

Effective date: 19990901