EP0998424B1 - Method for filling containers and installation therefor - Google Patents

Method for filling containers and installation therefor Download PDF

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Publication number
EP0998424B1
EP0998424B1 EP98939709A EP98939709A EP0998424B1 EP 0998424 B1 EP0998424 B1 EP 0998424B1 EP 98939709 A EP98939709 A EP 98939709A EP 98939709 A EP98939709 A EP 98939709A EP 0998424 B1 EP0998424 B1 EP 0998424B1
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EP
European Patent Office
Prior art keywords
shell
flask
pressure
filling
process according
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
EP98939709A
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German (de)
French (fr)
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EP0998424A1 (en
Inventor
Gérard Emmer
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Sidel SA
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Sidel SA
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Publication date
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Publication of EP0998424A1 publication Critical patent/EP0998424A1/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B67OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67CCLEANING, FILLING WITH LIQUIDS OR SEMILIQUIDS, OR EMPTYING, OF BOTTLES, JARS, CANS, CASKS, BARRELS, OR SIMILAR CONTAINERS, NOT OTHERWISE PROVIDED FOR; FUNNELS
    • B67C3/00Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus; Filling casks or barrels with liquids or semiliquids
    • B67C3/02Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus
    • B67C3/06Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus using counterpressure, i.e. filling while the container is under pressure
    • B67C3/12Pressure-control devices
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B67OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67CCLEANING, FILLING WITH LIQUIDS OR SEMILIQUIDS, OR EMPTYING, OF BOTTLES, JARS, CANS, CASKS, BARRELS, OR SIMILAR CONTAINERS, NOT OTHERWISE PROVIDED FOR; FUNNELS
    • B67C3/00Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus; Filling casks or barrels with liquids or semiliquids
    • B67C3/02Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus
    • B67C3/06Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus using counterpressure, i.e. filling while the container is under pressure
    • B67C3/10Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus using counterpressure, i.e. filling while the container is under pressure preliminary filling with inert gases, e.g. carbon dioxide
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B67OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67CCLEANING, FILLING WITH LIQUIDS OR SEMILIQUIDS, OR EMPTYING, OF BOTTLES, JARS, CANS, CASKS, BARRELS, OR SIMILAR CONTAINERS, NOT OTHERWISE PROVIDED FOR; FUNNELS
    • B67C3/00Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus; Filling casks or barrels with liquids or semiliquids
    • B67C3/02Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus
    • B67C3/22Details
    • B67C3/24Devices for supporting or handling bottles
    • B67C3/242Devices for supporting or handling bottles engaging with bottle necks
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B67OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67CCLEANING, FILLING WITH LIQUIDS OR SEMILIQUIDS, OR EMPTYING, OF BOTTLES, JARS, CANS, CASKS, BARRELS, OR SIMILAR CONTAINERS, NOT OTHERWISE PROVIDED FOR; FUNNELS
    • B67C3/00Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus; Filling casks or barrels with liquids or semiliquids
    • B67C3/02Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus
    • B67C3/22Details
    • B67C3/26Filling-heads; Means for engaging filling-heads with bottle necks
    • B67C2003/2688Means for filling containers in defined atmospheric conditions
    • B67C2003/2691Means for filling containers in defined atmospheric conditions by enclosing one container in a chamber

Definitions

  • the invention relates to improvements made when filling plastic containers when this operation includes at least one step during which a significant pressure difference occurs between the inside of the container and the outside environment to the filling installation, and when this operation is performed while the containers are hot and have more or less malleable areas. It's the case when the container filling phase with a any product is preceded by depression (more or less pronounced vacuum) from inside the container when filling with beer in particular, or a overpressure when filling with liquid carbonated, and when the containers are filled immediately after they are blown or drawing and then blowing a blank. It concerns a process and installation for its implementation.
  • Filling a container with a product any can sometimes be preceded by a vacuum or in pronounced depression of the interior of the container, by example to replace the air there by another medium so as not to distort the product which will be finally packaged in the container.
  • a vacuum or in pronounced depression of the interior of the container by example to replace the air there by another medium so as not to distort the product which will be finally packaged in the container.
  • This is for example the case when filling oxy-sensitive products such as beer, certain fruit juices or others: all traces of oxidizing product must be removed, and then inerting with nitrogen, for example.
  • a container such as a bottle
  • a carbonated liquid conventionally consists of a overpressure phase inside the bottle with a gas, typically carbon dioxide, followed by a filling phase with liquid, and a depressurization to remove excess gas, while now however some gas pressure at inside.
  • a gas typically carbon dioxide
  • the pressure difference is the cause of problems with plastic containers when the filling operation is attempted for a few seconds after the containers have been taken out of the mold blowing and are still hot, as is the case in so-called online filling facilities.
  • plastic containers and therefore their sketches are sized to withstand internal pressure values (overpressure or vacuum) necessary for their filling or for the conservation of products after capping when the material is stabilized, therefore cooled.
  • the invention aims to remedy these disadvantages, and allow filling of containers sized to withstand filling pressures when they are cold, but at least deformable during part of the filling.
  • a method for avoiding the irreversible deformation or deterioration of a container plastic material comprising at least one zone, the temperature exceeds the softening temperature of the material, during a filling operation comprising a phase during which a pressure difference notable exists between the interior of the container and the atmosphere external to the filling installation is characterized in that, at least during part of said phase, both that it is not thermally stabilized and is still deformable, the container is placed in an enclosure waterproof the insulation of the outside environment, the pressure the interior of the enclosure is modified compared to the outside atmosphere so as to reduce or even cancel the pressure difference between inside and outside the container.
  • the pressure inside the enclosure is modified by reducing it to bring it closer to, or even reach the inside of the container.
  • the pressure reduction inside of the enclosure and the one inside the container are performed simultaneously.
  • the product of filling is a carbonated liquid and the modification of pressure is achieved by injecting a fluid into overpressure in the enclosure isolating the container the outside atmosphere.
  • the arrival of the filling promotes cooling of the container which then stabilizes quickly.
  • the fluid is a gas.
  • the pressure is changed at using gas used for gasification (carbon dioxide especially).
  • the invention also includes an installation for the implementation of the method described above.
  • phase 3 implantation pressure
  • phase 4 filling
  • phase 4 when filling without injection prior to gas, phases 3 and 5 do not exist. It is during the filling phase (phase 4) that the problems may occur, especially if pressure and / or flow are too important.
  • Figure 2 illustrates the principle of the the invention applied to the filling of containers in plastic, such as bottles, with carbonated liquids, such as carbonated drinks.
  • container 8 here a bottle, has been placed in a sealed enclosure 9, and that its neck 10 has been sealed communication with a head 11 of filling, gas is injected inside (arrow 12) of the container 8 by a conduit opening into the head 11, and a fluid is injected (arrow 13) into the enclosure sealed by a conduit to exert a back pressure at the outside of the container.
  • the fluid used to exercise the back pressure is a gas.
  • Liquid could also be used, but this would significantly complicate the implementation work of the invention: indeed, unless use a non-wetting liquid, dry the exterior containers after filling.
  • the injection of the back pressure and that of gas take place simultaneously.
  • the back pressure is released just after internal pressure is established, that is to say before filling or during filling.
  • the process is more random, however, and more difficult to control because if the container is not enough stabilized, we can still witness deformations and / or bursts.
  • the relaxation of the back pressure starts after the start of degassing, i.e. when it is certain that the stresses due to the pressure inside the container are completely gone. This solution offers maximum security, but slows down substantially the cycle time.
  • each container introduced into the machine filling is enclosed in an enclosure allowing isolate it from the rest of the machine's ambient atmosphere.
  • this enclosure is closed, gasification, backpressure, filling phases, degassing and releasing the back pressure.
  • each container is enclosed in a different enclosure from that that precedes it and the one that follows it in the installation.
  • all the containers of the same group can be introduced simultaneously in the same pregnant, different from the previous group or that of the next group. However, it is still possible that all the containers of the same group be introduced simultaneously in separate enclosures.
  • Figure 3 is illustrated how the invention is applicable to prior vacuuming of a container 8, and thus makes it possible to produce, with plastic containers still malleable, which the prior art methods did not help.
  • a depression is created inside the container and is accompanied (arrow 18) by a depression at inside the enclosure to avoid collapsing the container 8.
  • the depressions in enclosure 9 and in the container 8 can be of the same value and be made simultaneously. We can then arrive at a balance of pressure inside and outside the container.
  • the container 8 Preferably, to avoid any deformation of the container 8 at this stage it can be re-pressurized room before enclosure 9.
  • the container can then be capped and then disposed of.
  • the invention presents the particular advantage that a single installation can be used to combine the two methods mentioned opposite Figures 2 and 3 respectively.
  • FIGS 5 and 6 schematically illustrate two possible embodiments of installations for placing implementing the method of the invention. Specifically, these figures show the parts of the installations used for filling with vacuuming of the container and / or internal overpressure.
  • the latter solution has the advantage of allow isopression between the enclosure and the container. On the other hand, at the opening of the enclosure, the quantity of gas remaining in the enclosure after degassing is lost.
  • FIGS. 5 and 6 are filling installations in the procession of the containers, that is to say that each container, while being animated by a movement of continuous translation on a course determined, is put in relation with the means to do vacuum and / or to pressurize a part, and the filling means, on the other hand.
  • Figures 5 and 6 show six containers (here bottles) 220; ...; 225, partners each to a separate enclosure and therefore to means separate from vacuum and / or overpressure and filling.
  • Each enclosure consists of two parts separate, respectively a 230H upper part; ...; 235H forming a cover, and a lower part 230B; ...; 235B, forming a receptacle for accommodating the container corresponding.
  • the dimensions of a receptacle 230B; ...; 235B, are such that when the cover 230H; ...; 235H is in place, the container is contained in the enclosure, as will be explained later.
  • the upper parts 230H; ...; 235H, as well as lower parts 230B; ...; 235B, are fixed to the structure mobile 24 of the installation, so that all upper parts 230H; ...; 235H follow the same route on the one hand, with a phase shift, lower parts 230B; ...; 235B follow the same course with, again, a phase shift in time.
  • each lower part 230B; ...; 235B can be moved away from the upper part (cover) 230H; ...; 235H corresponding, especially during the phases for placing or removing containers.
  • each lower part is associated with means such as a guide rod, respectively 250; ...; 255 sliding for example in a bearing 260; ...; 265 housed in the mobile structure 24.
  • the mobile structure 24 causes a component displacement horizontal of the upper and lower parts respectively, and the means 250; ...; 255; 260; ...; 265, cause a vertical translation of the lower parts 230B; ...; 235B relative to the mobile structure during its displacement in the direction of arrow 27, and therefore in relation to upper parts 230H; ...; 235H.
  • the cam 28 is fixed to the chassis, not shown, of the installation, so that when the roller associated with a rod, and therefore at the bottom (receptacle) corresponding, meets the fixed cam, it follows the profile imposed by the shape of the cam, causing a corresponding movement of the associated receptacle.
  • a first receptacle 230B is in the low position; the recipient 220 correspondent has just been charged; the roller 290 is in bottom of the cam.
  • the second receptacle 231B corresponding to the second container 221 is partially reassembled.
  • the last receptacle 235B is finally being lowering, the corresponding bottle 225 being filled and can be released at the end of the descent.
  • the lower parts are fixed relative to the structure mobile 24, the upper parts being mobile in translation vertical to this structure. That would complicate substantially the installation because, as illustrated by Figures 5 and 6, the upper parts are associated with filling heads 300; ...; 305 respective, with ducts not only for filling, but also for evacuating and / or pressurizing the interior of the enclosure and / or of the corresponding container, and with means for holding the containers.
  • the installation can be of the rotary type.
  • the structure mobile 24 is then a carousel rotating around an axis 31, said carousel carrying the speakers more generally referenced in 23 with an upper part (cover) 23H and a lower part (receptacle) 23B, and the cam 28 for guiding the rollers 29 is then in an arc of circle.
  • the containers are entered one by one into the installation (entry materialized by arrow 320 in FIG. 7); they are gripped at their neck by pliers 330; ...; 335 respective, associated with each filling head 300; ...; 305 (the clamps are shown diagrammatically in Figures 5 and 6).
  • the clamps are movable vertically, to press drinking the containers against the filling head.
  • the upward movement of each clamp is effected by example when the receptacle is being reassembled. This is symbolized by a rising arrow on the pliers 331 associated with container 221.
  • the corresponding clamp 335 goes back down, to free the neck of the container 225 from the head filling, before it leaves the installation (the exit zone is indicated by arrow 321 on Figure 7).
  • Each head 300; ...; 305 is crossed by a conduit 340; ...; 345 for internal overpressure from the container (gasification) and through a conduit 350; ...; 355 for filling.
  • conduit 360; ...; 365 is provided for the internal overpressure of the enclosure.
  • conduits 360; ...; 365 lead into the lower part 230B; ...; 235B corresponding.
  • they open in the upper part 230H; ...; 235H.
  • conduits 340; ...; 345 for the gasification of the containers are independent of those 360; ...; 365 for the internal overpressure of speakers. So it is possible to put each speaker overpressure with a fluid separate from the gas for the gasification of the filling product. For example, it is possible to use compressed air to put inside the overpressure enclosure.
  • each conduit 340; ...; 345 for the gasification of a container is associated (setting bypass) to the corresponding conduit 360; ...; 365 for the overpressure of the enclosure. So the gas for the gasification of the container can also be used for the overpressure of the enclosure.
  • the overpressure and filling takes place after closure of the enclosure, in accordance with what has been described with regard to the figure 3.
  • the container 222 and the corresponding 232H, 232B speaker are being set up overpressure;
  • container 223 is being filling, the pressure in this container and in the enclosure are maintained (which is materialized by a line blocking the pressurization conduit 363 of enclosure),
  • container 224 is full, and pressure is released both in the container and in the enclosure; finally, the lower part 235B of the enclosure associated with the container 225, full, is being lowered to allow the out of this container.
  • Figure 8 shows the block diagram an improved 23H upper section adaptable to the embodiment of Figure 5, and further allowing the depression in the container and in the enclosure.
  • conduits for the gasification of the container 22, through the filling head 30, 36 for the overpressure of the enclosure, and 35 for filling through the head 30, two conduits are provided, respectively 37 for the vacuuming the enclosure and 38 for vacuuming of the container 22, through the head 30.
  • These two last conduits are either interconnected as illustrated by figure 8, which allows them to be connected to a common vacuum pump (not shown), either not connected between them and connected to separate pumps.
  • conduits 34 for gasification of content and 36 for the overpressure of the enclosure are separated, allowing for example to put the speaker overpressure using compressed air.
  • Figure 9 which is a block diagram of a 23H improved upper part adaptable to the mode of embodiment of Figure 6, further allowing achieve a depression in the enclosure and in the container 22, there are the same conduits as on the Figure 8, but the conduits respectively 34 for the gasification of the content and 36 for the overpressure of the enclosure are interconnected, allowing a setting overpressure of the enclosure with the gasification gas.
  • conduits are connected to a valve 39 with mechanical, electrical or other control 40.
  • An intermediate conduit 41 is connected to the head 30 and connects this valve and the interior of the container 22.
  • the invention makes it possible to fill containers still hot and therefore deformable without being subjected to irreversible deformations, due to the limitation of pressure differential it allows between the interior and the outside of the containers.
  • the filling liquid helps to cool the bottom containers, before the external pressure is up to the level of the atmosphere. As a result, the funds are stabilized when the external pressure is released.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filling Of Jars Or Cans And Processes For Cleaning And Sealing Jars (AREA)
  • Vacuum Packaging (AREA)
  • Basic Packing Technique (AREA)
  • Supplying Of Containers To The Packaging Station (AREA)
  • Packages (AREA)

Abstract

A method for filling a plastic container (8) while it is still hot and deformable without damaging it, when the filling comprises a phase (17; 13) during which a noticeable difference in pressure between the container inside and the environment external to the filling installation occurs, at least during part of said phase, consisting in placing the container in a sealed chamber (9) isolating it from the external environment and modifying (18; 12) the pressure inside the chamber to reduce, even cancel, the difference in pressure between the container inside and outside. The invention is applicable to the filling of plastic containers, with aerated beverages and/or their filling after a vacuumizing phase of their internal volume, immediately after they have been made by blowing.

Description

L'invention concerne des perfectionnements apportés au remplissage de récipients en matière plastique lorsque cette opération comporte au moins une étape au cours de laquelle une différence de pression notable survient entre l'intérieur du récipient et le milieu extérieur à l'installation de remplissage, et lorsque cette opération est effectuée alors que les récipients sont chauds et présentent des zones plus ou moins malléables. C'est le cas lorsque la phase de remplissage du récipient avec un produit quelconque est précédée d'une mise en dépression (vide plus ou moins prononcé) de l'intérieur du récipient lors du remplissage avec de la bière notamment, ou d'une mise en surpression lors du remplissage avec un liquide gazéifié, et lorsque les récipients sont remplis immédiatement après leur fabrication par soufflage ou étirage puis soufflage d'une ébauche. Elle concerne un procédé et une installation pour sa mise en oeuvre.The invention relates to improvements made when filling plastic containers when this operation includes at least one step during which a significant pressure difference occurs between the inside of the container and the outside environment to the filling installation, and when this operation is performed while the containers are hot and have more or less malleable areas. It's the case when the container filling phase with a any product is preceded by depression (more or less pronounced vacuum) from inside the container when filling with beer in particular, or a overpressure when filling with liquid carbonated, and when the containers are filled immediately after they are blown or drawing and then blowing a blank. It concerns a process and installation for its implementation.

Le remplissage d'un récipient avec un produit quelconque peut parfois être précédé d'une mise sous vide ou en dépression prononcée de l'intérieur du récipient, par exemple pour remplacer l'air qui s'y trouve par un autre milieu afin de ne pas dénaturer le produit qui sera finalement conditionné dans le récipient. C'est par exemple le cas lors du remplissage de produits oxydo-sensibles tels de la bière, certains jus de fruits ou autres : toute trace de produit oxydant doit être retirée, et on effectue alors un inertage avec de l'azote, par exemple.Filling a container with a product any can sometimes be preceded by a vacuum or in pronounced depression of the interior of the container, by example to replace the air there by another medium so as not to distort the product which will be finally packaged in the container. This is for example the case when filling oxy-sensitive products such as beer, certain fruit juices or others: all traces of oxidizing product must be removed, and then inerting with nitrogen, for example.

Le remplissage d'un récipient, tel qu'une bouteille, avec un liquide gazéifié consiste classiquement en une phase de mise en surpression de l'intérieur de la bouteille avec un gaz, typiquement du gaz carbonique, suivie d'une phase de remplissage avec le liquide, et d'une phase de dépressurisation pour retirer le gaz en excès, tout en maintenant cependant une certaine pression de gaz à l'intérieur.Filling a container, such as a bottle, with a carbonated liquid conventionally consists of a overpressure phase inside the bottle with a gas, typically carbon dioxide, followed by a filling phase with liquid, and a depressurization to remove excess gas, while now however some gas pressure at inside.

La différence de pression est à l'origine de problèmes sur les récipients en matière plastique, lorsque l'opération de remplissage est tentée quelques secondes après que les récipients ont été sortis du moule de soufflage et sont encore chauds, comme c'est le cas dans les installations dites de remplissage en ligne.The pressure difference is the cause of problems with plastic containers when the filling operation is attempted for a few seconds after the containers have been taken out of the mold blowing and are still hot, as is the case in so-called online filling facilities.

Avec ces récipients, il n'est pas possible de réaliser une mise en dépression préalable au remplissage, sans provoquer une déformation par collapsage ou affaissement des récipients.With these containers it is not possible to achieve a vacuum prior to filling, without causing collapsing deformation or sagging containers.

Avec ce même type de récipients, le remplissage avec des liquides gazéifiés pose le problème suivant : la phase de mise en surpression des récipients avant remplissage entraíne leur éclatement ou une déformation irréversible.With this same type of container, filling with carbonated liquids poses the following problem: the phase of overpressure of the containers before filling causes their bursting or irreversible deformation.

Les déformations ou les éclatements affectent le corps des récipients, mais on remarque des déformations affectant plus particulièrement les fonds des récipients (phénomènes de fissurage appelés "stress cracking" dans le langage du métier).Deformations or bursts affect the container body, but there are distortions more particularly affecting the bottoms of the containers (cracking phenomena called "stress cracking" in the language of the trade).

Ces phénomènes sont dûs au fait qu'un récipient en matière plastique s'obtient par soufflage d'une ébauche (préforme, paraison, récipient intermédiaire) préalablement portée à sa température de soufflage, donc ramollie, par chauffage. Lorsque le récipient sort du moule de soufflage, il subsiste des zones plus ou moins chaudes, donc des zones plus ou moins malléables. Généralement, ce sont les zones qui ont été les moins étirées lors du soufflage qui se refroidissent le plus lentement pour diverses raisons. Et le fond est l'une des zones les moins étirées. Or, si pendant que la différence de pression est présente, la température dépasse encore la température de ramollissement, une déformation peut survenir en raison de la contrainte mécanique exercée sur ces zones, par la pression interne (surpression ou dépression).These phenomena are due to the fact that a container plastic material is obtained by blowing a blank (preform, parison, intermediate container) beforehand brought to its blowing temperature, therefore softened, by heater. When the container comes out of the blow mold, more or less hot areas remain, therefore areas more or less malleable. Generally, these are the areas which were the least stretched during the blowing which cool the slowest for various reasons. And the bottom is one of the least stretched areas. But if while the pressure difference is present, the temperature still exceeds the temperature of softening, deformation may occur due to the mechanical stress exerted on these areas, by the internal pressure (overpressure or depression).

Il arrive encore, mais cependant moins souvent, que des éclatements ou des déformations surviennent lorsque le remplissage s'effectue sans dépression ou mise en surpression préalable avec un gaz, mais lorsque la pression d'introduction du liquide ou, plus généralement, du produit de remplissage est assez élevée.It still happens, but less often, that bursts or deformations occur when the filling takes place without vacuum or prior overpressure with a gas, but when the pressure for introducing the liquid or, more generally, the product filling is quite high.

En effet, les récipients en matière plastique, et donc leurs ébauches, sont dimensionnés pour résister aux valeurs de pression interne (surpression ou dépression) nécessaires à leur remplissage ou à la conservation des produits après bouchage lorsque la matière est stabilisée, donc refroidie.In fact, the plastic containers, and therefore their sketches are sized to withstand internal pressure values (overpressure or vacuum) necessary for their filling or for the conservation of products after capping when the material is stabilized, therefore cooled.

C'est pourquoi, jusqu'à présent, tous les essais de remplissage, dans les conditions précitées, de récipients en matière plastique présentant encore des zones à une température supérieure à la température de ramollissement et dimensionnés pour résister aux mêmes conditions lorsque la matière est stabilisée, se sont soldés par des échecs, et le remplissage en ligne ne leur était pas appliqué de façon industrielle.This is why, until now, all the tests of filling, under the aforementioned conditions, of containers of plastics still having zones at a temperature above the softening temperature and sized to withstand the same conditions when matter is stabilized, ended in failure, and online filling was not applied to them industrial way.

Une solution envisageable a consisté à surdimensionner les récipients pour compenser la déformabilité par un excès de matière. Cette solution n'est cependant pas réaliste pour diverses raisons parmi lesquelles : d'une part, elle va à l'encontre de la tendance actuelle qui est l'allégement des récipients, pour des raisons de coût matière; d'autre part, les récipients obtenus sont assez inesthétiques; en outre, paradoxalement, l'excès de matière rend les récipients fragiles lorsqu'ils sont stabilisés; enfin, la matière en excès, nécessaire au remplissage, devient inutile lorsque les récipients sont refroidis.One possible solution was to oversize the containers to compensate for the deformability by an excess of material. This solution is not however not realistic for various reasons among which: on the one hand, it goes against the current trend which is the reduction of containers, for reasons of material cost; on the other hand, the containers obtained are quite unsightly; moreover, paradoxically, excess material makes containers fragile when are stabilized; finally, the excess material, necessary for filling, becomes useless when the containers are cooled.

L'invention a pour but de remédier à ces inconvénients, et de permettre le remplissage de récipients dimensionnés pour tenir les pressions de remplissage lorsqu'ils sont froids, mais déformables au moins pendant une partie du remplissage.The invention aims to remedy these disadvantages, and allow filling of containers sized to withstand filling pressures when they are cold, but at least deformable during part of the filling.

Selon l'invention, un procédé pour éviter la déformation ou détérioration irréversible d'un récipient en matière plastique comportant au moins une zone dont la température excède la température de ramollissement de la matière, lors d'une opération de remplissage comportant une phase au cours de laquelle une différence de pression notable existe entre l'intérieur du récipient et l'ambiance extérieure à l'installation de remplissage, est caractérisé en ce que, au moins durant une partie de ladite phase, tant qu'il n'est pas stabilisé thermiquement et est encore déformable, le récipient est placé dans une enceinte étanche l'isolant de l'ambiance extérieure, la pression à l'intérieur de l'enceinte est modifiée par rapport à l'ambiance extérieure de façon à réduire voire annuler la différence de pression entre l'intérieur et l'extérieur du récipient.According to the invention, a method for avoiding the irreversible deformation or deterioration of a container plastic material comprising at least one zone, the temperature exceeds the softening temperature of the material, during a filling operation comprising a phase during which a pressure difference notable exists between the interior of the container and the atmosphere external to the filling installation, is characterized in that, at least during part of said phase, both that it is not thermally stabilized and is still deformable, the container is placed in an enclosure waterproof the insulation of the outside environment, the pressure the interior of the enclosure is modified compared to the outside atmosphere so as to reduce or even cancel the pressure difference between inside and outside the container.

Ainsi, en réduisant, voire en annulant la différence de pression qui existe entre l'intérieur et l'extérieur du récipient, tant que la matière n'est pas stabilisée thermiquement, on supprime les risques d'éclatement ou de déformation, et on permet le remplissage alors que le récipient possède encore des zones malléables.So by reducing or even canceling the difference pressure that exists between the inside and outside of the container, until the material is stabilized thermally, the risk of bursting or deformation, and the filling is allowed while the container still has malleable areas.

Selon une autre caractéristique, lorsque la différence de pression entre l'intérieur du récipient et l'ambiance extérieure est obtenue en faisant le vide dans le récipient, la pression à l'intérieur de l'enceinte est modifiée en la réduisant pour la rapprocher de, voire atteindre celle de l'intérieur du récipient.According to another characteristic, when the pressure difference between the inside of the container and the external atmosphere is obtained by emptying into the container, the pressure inside the enclosure is modified by reducing it to bring it closer to, or even reach the inside of the container.

De préférence, la réduction de pression à l'intérieur de l'enceinte et celle à l'intérieur du récipient sont effectuées simultanément.Preferably, the pressure reduction inside of the enclosure and the one inside the container are performed simultaneously.

Selon une autre caractéristique, le produit de remplissage est un liquide gazéifié et la modification de la pression est effectuée en injectant un fluide en surpression dans l'enceinte isolant le récipient de l'ambiance extérieure. Dans ce cas, l'arrivée du liquide de remplissage favorise le refroidissement du récipient qui se stabilise alors rapidement.According to another characteristic, the product of filling is a carbonated liquid and the modification of pressure is achieved by injecting a fluid into overpressure in the enclosure isolating the container the outside atmosphere. In this case, the arrival of the filling promotes cooling of the container which then stabilizes quickly.

Selon une autre caractéristique, le fluide est un gaz. Dans une mise en oeuvre, lorsque le liquide est gazéifié, la modification de la pression est effectuée à l'aide du gaz servant à la gazéification (gaz carbonique notamment).According to another characteristic, the fluid is a gas. In one implementation, when the liquid is carbonated, the pressure is changed at using gas used for gasification (carbon dioxide especially).

Dans ce cas, on peut facilement aboutir à un équilibre de pression entre l'intérieur et l'extérieur du récipient en modifiant simultanément les pressions dans le récipient et dans l'enceinte et on s'affranchit alors totalement des problèmes d'éclatement ou de déformation.In this case, one can easily end up with a pressure balance between inside and outside the container by simultaneously changing the pressures in the container and in the enclosure and we freed ourselves then totally burst or deformation problems.

L'invention comprend aussi une installation pour la mise en oeuvre du procédé décrit ci-dessus.The invention also includes an installation for the implementation of the method described above.

D'autres caractéristiques et avantages de l'invention apparaítront à la lecture de la description qui suit, faite en regard des figures annexées, sur lesquelles :

  • la figure 1 illustre schématiquement les différentes phases d'un remplissage avec gazéification avec des récipients résistants;
  • la figure 2 illustre schématiquement le principe de l'invention appliqué au remplissage avec un liquide gazéifié;
  • la figure 3 illustre schématiquement le principe de l'invention appliqué à la mise en dépression préalable de l'intérieur d'un récipient;
  • la figure 4 illustre schématiquement le principe de l'invention appliqué à une mise en dépression préalable d'un récipient suivie d'un remplissage avec un liquide gazéifié;
  • les figures 5 et 6 illustrent deux modes de réalisation possibles d'une installation pour la mise en oeuvre de l'invention, pour le remplissage avec un liquide gazéifié;
  • la figure 7 est une vue schématique, de dessus, d'une installation pour la mise en oeuvre;
  • les figures 8 et 9 sont des vues schématiques de variantes d'une partie de l'installation pour la mise en oeuvre de l'invention;
  • la figure 10 illustre un mode de réalisation avantageux d'une partie des figures 8 et 9.
Other characteristics and advantages of the invention will appear on reading the description which follows, given with reference to the appended figures, in which:
  • Figure 1 schematically illustrates the different phases of filling with gasification with resistant containers;
  • Figure 2 schematically illustrates the principle of the invention applied to filling with a carbonated liquid;
  • Figure 3 schematically illustrates the principle of the invention applied to the prior depression of the interior of a container;
  • Figure 4 schematically illustrates the principle of the invention applied to a prior depression of a container followed by filling with a carbonated liquid;
  • Figures 5 and 6 illustrate two possible embodiments of an installation for implementing the invention, for filling with a carbonated liquid;
  • Figure 7 is a schematic view from above of an installation for implementation;
  • Figures 8 and 9 are schematic views of variants of a part of the installation for the implementation of the invention;
  • FIG. 10 illustrates an advantageous embodiment of part of FIGS. 8 and 9.

En se référant à la figure 1, un cycle connu de remplissage d'un récipient à l'aide d'un liquide gazéifié, tel un liquide carbonaté, comporte typiquement les phases suivantes.

  • 1) Une "phase 1" au cours de laquelle le récipient, ici une bouteille 1, est introduit dans la remplisseuse et est positionné de sorte que son col 2 se trouve en regard d'une tête 3 de remplissage. Lorsque la bouteille 1 est en matière plastique, elle est maintenue, lors des différentes phases, sous son col 2, à l'aide de moyens appropriés, tels que des pinces 4, ceci pour éviter qu'au cours des phases ultérieures, la bouteille 1 ne s'affaisse sous l'effet de la force d'appui exercée par la tête 3.
  • 2) Une "phase 2" lors de laquelle la bouteille 1, et plus précisément son col 2 est centré par rapport à la tête 3 de remplissage et cette dernière est plaquée contre le col pour assurer l'étanchéité;
  • 3) une "phase 3" de mise en surpression intérieure de la bouteille 1 à l'aide d'un gaz approprié, typiquement du gaz carbonique ou un gaz se trouvant à l'état naturel dans le liquide. Cette phase de mise en pression intérieure s'effectue en injectant le gaz au travers de conduit(s) débouchant dans la tête 3 de remplissage. Elle est schématisée par la flèche 5 sur la figure;
  • 4) une "phase 4" de remplissage par le biais de la tête 3 de remplissage (flèche 6 sur la figure);
  • 5) une "phase 5" d'évacuation du gaz en excès dans le récipient (flèche 7). Durant cette phase, l'excès de gaz peut être retourné vers le réservoir à partir duquel il avait été injecté durant la phase 3;
  • 6) une "phase 6" de libération de la tête 3 de remplissage et d'évacuation de la bouteille 1 pleine toujours maintenue par les pinces 4 sous son col 2.
  • Referring to Figure 1, a known cycle of filling a container with a carbonated liquid, such as a carbonated liquid, typically comprises the following phases.
  • 1) A "phase 1" during which the container, here a bottle 1, is introduced into the filler and is positioned so that its neck 2 is located opposite a filling head 3. When the bottle 1 is made of plastic, it is held, during the different phases, under its neck 2, using appropriate means, such as pliers 4, this to avoid that during the subsequent phases, the bottle 1 does not collapse under the effect of the pressing force exerted by the head 3.
  • 2) A "phase 2" during which the bottle 1, and more precisely its neck 2 is centered relative to the filling head 3 and the latter is pressed against the neck to ensure sealing;
  • 3) a "phase 3" of placing the internal pressure in the bottle 1 using an appropriate gas, typically carbon dioxide or a gas found in the natural state in the liquid. This internal pressurization phase is carried out by injecting the gas through conduit (s) opening into the filling head 3. It is shown diagrammatically by arrow 5 in the figure;
  • 4) a "phase 4" filling via the filling head 3 (arrow 6 in the figure);
  • 5) a "phase 5" of evacuation of excess gas in the container (arrow 7). During this phase, the excess gas can be returned to the tank from which it was injected during phase 3;
  • 6) a "phase 6" of releasing the head 3 for filling and evacuating the full bottle 1 still maintained by the clamps 4 under its neck 2.
  • C'est généralement lors de la phase 3 (mise en pression) et/ou de la phase 4 (remplissage) que surviennent les problèmes d'éclatement ou de déformation mentionnés au préambule.It is generally during phase 3 (implementation pressure) and / or phase 4 (filling) that occur the bursting or deformation problems mentioned in preamble.

    Bien entendu, lors d'un remplissage sans injection préalable de gaz, les phases 3 et 5 n'existent pas. C'est pendant la phase de remplissage (phase 4) que les problèmes peuvent survenir, notamment si la pression et/ou le débit de remplissage sont (est) trop important(s).Of course, when filling without injection prior to gas, phases 3 and 5 do not exist. It is during the filling phase (phase 4) that the problems may occur, especially if pressure and / or flow are too important.

    La figure 2 illustre le principe du procédé de l'invention appliqué au remplissage de récipients en matière plastique, tels que des bouteilles, avec des liquides gazéifiés, tels que des boissons carbonatées.Figure 2 illustrates the principle of the the invention applied to the filling of containers in plastic, such as bottles, with carbonated liquids, such as carbonated drinks.

    Le procédé peut se résumer en trois phases illustrées par les schémas 2-1, 2-2 et 2-3.The process can be summarized in three illustrated phases by diagrams 2-1, 2-2 and 2-3.

    Sur la figure 2-1 :In Figure 2-1:

    Après que le récipient 8, ici une bouteille, a été placé dans une enceinte 9 étanche, et que son col 10 a été mis en communication étanche avec une tête 11 de remplissage, du gaz est injecté (flèche 12) à l'intérieur du récipient 8 par un conduit débouchant dans la tête 11, et un fluide est injecté (flèche 13) dans l'enceinte étanche par un conduit pour exercer une contrepression à l'extérieur du récipient.After container 8, here a bottle, has been placed in a sealed enclosure 9, and that its neck 10 has been sealed communication with a head 11 of filling, gas is injected inside (arrow 12) of the container 8 by a conduit opening into the head 11, and a fluid is injected (arrow 13) into the enclosure sealed by a conduit to exert a back pressure at the outside of the container.

    De préférence, le fluide utilisé pour exercer la contrepression est un gaz. Un liquide pourrait aussi être utilisé, mais cela compliquerait notablement la mise en oeuvre de l'invention : il faudrait, en effet, à moins d'utiliser un liquide non mouillant, assécher l'extérieur des récipients après remplissage.Preferably, the fluid used to exercise the back pressure is a gas. Liquid could also be used, but this would significantly complicate the implementation work of the invention: indeed, unless use a non-wetting liquid, dry the exterior containers after filling.

    Le moment où le fluide est injecté dans l'enceinte 9 par rapport à celui où le gaz est injecté dans le récipient 8, de même que les valeurs relatives des pressions à l'intérieur et à l'extérieur du récipient importent peu: ce qui est essentiel est que la différence de pression, à tout moment, soit telle que le récipient ne subisse pas d'éclatement ou de déformation.The moment when the fluid is injected into the enclosure 9 compared to where the gas is injected into the container 8, as well as the relative values of the pressures at the inside and outside of the container does not matter: this which is essential is that the pressure difference at all moment, such that the container does not undergo bursting or deformation.

    Cependant, de préférence, afin de faciliter la mise en oeuvre du procédé, l'injection du fluide de contrepression et celle du gaz ont lieu simultanément.However, preferably, in order to facilitate the setting implementation of the method, the injection of the back pressure and that of gas take place simultaneously.

    Alternativement, il est possible de décaler légèrement le moment où l'augmentation de pression est commencée dans le récipient 8 par rapport à celui où elle est commencée dans l'enceinte 9, en commençant d'abord à augmenter la pression dans le récipient et en commençant ensuite dans l'enceinte 9, avant que la pression dans le récipient ne soit trop élevée.Alternatively, it is possible to shift slightly when the pressure increase is started in container 8 compared to the one where it is started in enclosure 9, starting first at increase the pressure in the container and starting then in enclosure 9, before the pressure in the container is too high.

    Survient ensuite la phase de remplissage, par un conduit 14, sur la figure 2.2, au cours de laquelle, de préférence, la contrepression est maintenue. En effet, il est vraisemblable qu'à ce stade le récipient ne soit pas encore stabilisé.Then comes the filling phase, with a line 14, in FIG. 2.2, during which, from preferably, the back pressure is maintained. Indeed, it it is likely that at this stage the container is not still stabilized.

    Suit alors (figure 2.3) une phase de dégazage de l'intérieur du récipient 8 (flèche 15 sur cette figure) et une phase de relâchement de la contrepression (flèche 16 sur la même figure), avant que le récipient soit sorti de la machine pour être bouché, ou alternativement bouché avant d'être sorti au cas où la machine est une remplisseuse-boucheuse.Then follows (Figure 2.3) a degassing phase of inside the container 8 (arrow 15 in this figure) and a phase of relaxation of the back pressure (arrow 16 in the same figure), before the container is removed from the machine to be clogged, or alternatively clogged before going out in case the machine is a filler-capper.

    Dans une mise en oeuvre, la contrepression est relâchée juste après que la pression interne est établie, c'est-à-dire avant le remplissage ou pendant celui-ci. Le processus est cependant plus aléatoire, et plus difficile à maítriser car si le récipient n'est pas suffisamment stabilisé, on peut encore assister à des déformations et/ou des éclatements.In one implementation, the back pressure is released just after internal pressure is established, that is to say before filling or during filling. The process is more random, however, and more difficult to control because if the container is not enough stabilized, we can still witness deformations and / or bursts.

    Dans une autre mise en oeuvre, le relâchement de la contrepression débute après le début du dégazage, c'est-à-dire lorsqu'il est certain que les contraintes dues à la pression à l'intérieur du récipient ont totalement disparu. Cette solution offre le maximum de sécurité, mais ralentit sensiblement le temps de cycle.In another implementation, the relaxation of the back pressure starts after the start of degassing, i.e. when it is certain that the stresses due to the pressure inside the container are completely gone. This solution offers maximum security, but slows down substantially the cycle time.

    Dans une mise en oeuvre, c'est l'ensemble de l'installation qui est en surpression, pour exercer la contrepression à l'extérieur des récipients. Cette solution est cependant lourde à gérer, car il faut prévoir des moyens, tels des sas, pour permettre l'entrée et la sortie des récipients sans que la surpression diminue notablement à l'intérieur de l'installation.In an implementation, it is the set of the installation which is under overpressure, to exercise the back pressure on the outside of the containers. This solution is however cumbersome to manage, because it is necessary to plan means, such as airlocks, to allow entry and exit containers without significantly reducing the overpressure inside the facility.

    C'est pourquoi, de préférence, comme illustré par les figures 3 à 7, chaque récipient introduit dans la machine de remplissage est enfermé dans une enceinte permettant de l'isoler du reste de l'atmosphère ambiante de la machine. Lorsque cette enceinte est fermée, surviennent alors les phases de gazéification, de contrepression, de remplissage, de dégazage et de relâchement de la contrepression.This is why, preferably, as illustrated by the Figures 3 to 7, each container introduced into the machine filling is enclosed in an enclosure allowing isolate it from the rest of the machine's ambient atmosphere. When this enclosure is closed, gasification, backpressure, filling phases, degassing and releasing the back pressure.

    Ainsi, si les récipients sont introduits un par un, les uns à la suite des autres, de sorte que les récipients subissent les différentes phases avec un décalage, chaque récipient est enfermé dans une enceinte différente de celui qui le précède et de celui qui le suit dans l'installation. Par contre, si les récipients sont introduits par groupes successifs, alors tous les récipients d'un même groupe peuvent être introduits simultanément dans une même enceinte, différente de celle du groupe précédent ou de celle du groupe suivant. Cependant, il est encore possible que tous les récipients d'un même groupe soient introduits simultanément dans des enceintes distinctes.So, if the containers are introduced one by one, one after the other, so that the containers undergo the different phases with an offset, each container is enclosed in a different enclosure from that that precedes it and the one that follows it in the installation. On the other hand, if the containers are introduced in groups successive, then all the containers of the same group can be introduced simultaneously in the same pregnant, different from the previous group or that of the next group. However, it is still possible that all the containers of the same group be introduced simultaneously in separate enclosures.

    Sur la figure 3 est illustrée la façon dont l'invention est applicable à la mise sous vide préalable d'un récipient 8, et permet ainsi de réaliser, avec des récipients en plastique encore malléable, ce que les procédés de l'art antérieur ne permettaient pas.In Figure 3 is illustrated how the invention is applicable to prior vacuuming of a container 8, and thus makes it possible to produce, with plastic containers still malleable, which the prior art methods did not help.

    Après que le récipient 8 a été emprisonné dans l'enceinte étanche 9, et que son col 10 a été mis en communication avec la tête 11 de remplissage, une dépression (flèche 17) est créée à l'intérieur du récipient et est accompagnée (flèche 18) par une dépression à l'intérieur de l'enceinte pour éviter le collapsage du récipient 8. After container 8 has been trapped in the sealed enclosure 9, and that its neck 10 has been communication with the filling head 11, a depression (arrow 17) is created inside the container and is accompanied (arrow 18) by a depression at inside the enclosure to avoid collapsing the container 8.

    Les dépressions dans l'enceinte 9 et dans le récipient 8 peuvent être de même valeur et être réalisées simultanément. On peut alors aboutir à un équilibre de pression à l'intérieur et à l'extérieur du récipient.The depressions in enclosure 9 and in the container 8 can be of the same value and be made simultaneously. We can then arrive at a balance of pressure inside and outside the container.

    Alternativement il est possible de décaler légèrement le moment où la dépression est commencée dans lé récipient par rapport à celui où elle est commencée dans l'enceinte, de préférence en commençant d'abord à faire le vide dans l'enceinte 9. De même, les valeurs finales des dépressions dans l'enceinte et dans le récipient peuvent ne pas être égales. Il faut les adapter pour qu'en définitive il n'y ait pas de déformation non souhaitée du récipient.Alternatively it is possible to shift slightly when depression started in the container compared to the one where it started in the enclosure, preferably by first starting to create a vacuum in enclosure 9. Similarly, the final values of the depressions in the enclosure and in the container may not be equal. They must be adapted so that ultimately there have no unwanted deformation of the container.

    Après que la dépression dans le récipient a fait son effet (pour mémoire, par exemple, préparation d'un inertage à l'azote), une pression ambiante peut être rétablie à l'intérieur du récipient 8 et de l'enceinte 9. Pour ce, comme illustré par la figure 3.2, tant l'intérieur du récipient 8 que celui de l'enceinte 9 sont remis à l'air libre (flèches 19 et 20 respectivement).After the depression in the container has made its way effect (for example, preparation of inerting with nitrogen), an ambient pressure can be restored to inside the container 8 and the enclosure 9. For this, as illustrated in figure 3.2, both inside the container 8 as that of enclosure 9 are returned to the air free (arrows 19 and 20 respectively).

    De préférence, pour éviter toute déformation du récipient 8 à ce stade, il peut être remis à la pression ambiante avant l'enceinte 9.Preferably, to avoid any deformation of the container 8 at this stage it can be re-pressurized room before enclosure 9.

    Ensuite (figure 3.3), le récipient est rempli (flèche 21). Il n'est pas fondamental, à ce stade, qu'il soit maintenu dans l'enceinte 9 puisque la pression interne de l'enceinte 9 est équivalente à celle de l'ambiance extérieure depuis la phase précédente (figure 3.2), à moins que le remplissage n'ait pour but de gazéifier le contenu, ce qui sera expliqué en regard de la figure 4.Then (figure 3.3), the container is filled (arrow 21). It is not essential at this stage that it be maintained in enclosure 9 since the internal pressure of enclosure 9 is equivalent to that of the ambience from the previous phase (Figure 3.2), unless that the filling is not intended to gasify the content, which will be explained with reference to FIG. 4.

    Le récipient peut ensuite être bouché, puis évacué.The container can then be capped and then disposed of.

    Comme illustré par la figure 4, l'invention présente l'avantage particulier qu'une seule et même installation peut être utilisée pour combiner les deux méthodes évoquées en regard des figures 2 et 3 respectivement.As illustrated in FIG. 4, the invention presents the particular advantage that a single installation can be used to combine the two methods mentioned opposite Figures 2 and 3 respectively.

    Les mêmes éléments portent les mêmes références.The same elements have the same references.

    Après qu'un récipient 8, ici une bouteille, a été placé dans l'enceinte 9 étanche (figure 4.1), une dépression est créée tant à l'intérieur de la bouteille (flèche 17) que de l'enceinte (flèche 18).After a container 8, here a bottle, has been placed in the sealed enclosure 9 (FIG. 4.1), a depression is created both inside the bottle (arrow 17) than the enclosure (arrow 18).

    Ensuite (figure 4.2), l'intérieur de la bouteille et celui de l'enceinte sont remis à la pression de l'ambiance extérieure (flèches 19 et 20), puis (figure 4.3), l'intérieur de la bouteille et celui de l'enceinte peuvent être mis en pression (flèches 12 et 13) avant que la bouteille soit remplie (flèche 14 sur la figure 4.4).Then (figure 4.2), the inside of the bottle and that of the enclosure are put back to the pressure of the atmosphere outside (arrows 19 and 20), then (figure 4.3), the inside of the bottle and the inside of the enclosure can be pressurized (arrows 12 and 13) before the bottle is full (arrow 14 in figure 4.4).

    Ensuite (figure 4.5), les pressions à l'intérieur de l'enceinte et de la bouteille peuvent être relâchées (flèches 15 et 16), avant que la bouteille pleine soit sortie de l'enceinte (figure 4.6).Then (figure 4.5), the pressures inside the enclosure and the bottle can be released (arrows 15 and 16), before the full bottle is exit from the enclosure (figure 4.6).

    On conçoit donc qu'une installation pour la mise en oeuvre du procédé selon l'invention peut être très simple à réaliser : il suffit de prévoir une enceinte étanche avec les conduits appropriés pour réaliser le vide dans l'enceinte et le récipient et/ou pour mettre en surpression l'intérieur de l'enceinte et l'intérieur du récipient.It is therefore understandable that an installation for the implementation work of the process according to the invention can be very simple to realize: just provide a waterproof enclosure with the appropriate conduits to achieve the vacuum in the enclosure and the container and / or for overpressure inside the enclosure and inside the container.

    Les figures 5 et 6 illustrent schématiquement deux modes possibles de réalisation d'installations pour la mise en oeuvre du procédé de l'invention. Plus précisément, ces figures montrent les parties des installations utilisées pour le remplissage avec mise sous vide du récipient et/ou mise en surpression interne.Figures 5 and 6 schematically illustrate two possible embodiments of installations for placing implementing the method of the invention. Specifically, these figures show the parts of the installations used for filling with vacuuming of the container and / or internal overpressure.

    Sur ces figures, on a représenté des installations de remplissage en ligne, dans lesquelles les récipients sont déplacés de façon continue. L'invention est, bien entendu, applicable à d'autres types d'installations.In these figures, installations of line filling, in which the containers are moved continuously. The invention is, of course, applicable to other types of installations.

    La différence entre les figures 5 et 6 est la suivante :

    • dans le mode de réalisation de la figure 5, le fluide de mise en surpression de l'enceinte associée à un récipient est différent de celui servant à la mise en surpression de l'intérieur du récipient. L'enceinte peut être mise en surpression avec de l'air comprimé alors que le récipient est mis en surpression avec le gaz pour gazéifier le produit de remplissage (par exemple du gaz carbonique dans le cas de boissons carbonatées);
    • dans le mode de réalisation de la figure 6, c'est le gaz de mise en surpression du récipient qui est également utilisé pour mettre l'enceinte en surpression.
    The difference between Figures 5 and 6 is as follows:
    • in the embodiment of FIG. 5, the fluid for boosting the enclosure associated with a container is different from that used for boosting the interior of the container. The enclosure can be pressurized with compressed air while the container is pressurized with the gas to gasify the filling product (for example carbon dioxide in the case of carbonated drinks);
    • in the embodiment of Figure 6, it is the pressurizing gas of the container which is also used to put the enclosure under pressure.

    Cette dernière solution présente l'avantage de permettre une isopression entre l'enceinte et le récipient. Par contre, à l'ouverture de l'enceinte, la quantité de gaz subsistant dans l'enceinte à l'issue du dégazage est perdue.The latter solution has the advantage of allow isopression between the enclosure and the container. On the other hand, at the opening of the enclosure, the quantity of gas remaining in the enclosure after degassing is lost.

    Elle n'est donc pas économique en ce qui concerne la consommation de gaz.It is therefore not economical with regard to gas consumption.

    Du fait des similitudes existant entre les deux figures, les éléments similaires ou identiques portent les mêmes références. Par ailleurs, afin de simplifier la compréhension de ces figures, on a associé aux divers conduits, chaque fois que nécessaire, des symboles montrant l'existence ou non de flux de liquide et/ou de gaz (flèches indiquant l'existence et le sens d'un flux, ou trait barrant un conduit, pour indiquer que ledit conduit est ou doit être obturé, pour empêcher le passage de liquide ou de gaz). Due to the similarities between the two figures, similar or identical elements bear the same references. Furthermore, in order to simplify the understanding of these figures, we associated with the various conducted, whenever necessary, symbols showing whether or not there is a flow of liquid and / or gas (arrows indicating the existence and direction of a flow, or trait blocking a conduit, to indicate that said conduit is or must be closed to prevent the passage of liquid or gas).

    Les installations des figures 5 et 6 sont des installations de remplissage au défilé des récipients, c'est-à-dire que chaque récipient, tout en étant animé d'un mouvement de translation continue sur un parcours déterminé, est mis en relation avec les moyens pour faire le vide et/ou pour effectuer la mise en pression d'une part, et les moyens de remplissage, d'autre part.The installations of FIGS. 5 and 6 are filling installations in the procession of the containers, that is to say that each container, while being animated by a movement of continuous translation on a course determined, is put in relation with the means to do vacuum and / or to pressurize a part, and the filling means, on the other hand.

    Sur les figures 5 et 6 sont représentés six récipients (ici des bouteilles) 220; ... ; 225, associés chacun à une enceinte distincte et donc à des moyens distincts de mise sous vide et/ou de mise en surpression et de remplissage.Figures 5 and 6 show six containers (here bottles) 220; ...; 225, partners each to a separate enclosure and therefore to means separate from vacuum and / or overpressure and filling.

    Chaque enceinte est constituée de deux parties distinctes, respectivement une partie haute 230H; ... ; 235H formant couvercle, et une partie basse 230B; ... ; 235B, formant un réceptacle pour accueillir le récipient correspondant. Les dimensions d'un réceptacle 230B; ... ; 235B, sont telles que lorsque le couvercle 230H; ... ; 235H est en place, le récipient est contenu dans l'enceinte, comme il sera expliqué plus loin.Each enclosure consists of two parts separate, respectively a 230H upper part; ...; 235H forming a cover, and a lower part 230B; ...; 235B, forming a receptacle for accommodating the container corresponding. The dimensions of a receptacle 230B; ...; 235B, are such that when the cover 230H; ...; 235H is in place, the container is contained in the enclosure, as will be explained later.

    Les parties hautes 230H; ... ; 235H, de même que les parties basses 230B; ... ; 235B, sont fixées à la structure mobile 24 de l'installation, de sorte que toutes les parties hautes 230H; ... ; 235H suivent un même parcours avec un déphasage dans le temps d'une part, toutes les parties basses 230B; ... ; 235B suivent un même parcours avec, là encore, un déphasage dans le temps.The upper parts 230H; ...; 235H, as well as lower parts 230B; ...; 235B, are fixed to the structure mobile 24 of the installation, so that all upper parts 230H; ...; 235H follow the same route on the one hand, with a phase shift, lower parts 230B; ...; 235B follow the same course with, again, a phase shift in time.

    Par ailleurs, dans les modes de réalisation illustrés par les figures 5 et 6, chaque partie basse 230B; ... ; 235B peut être éloignée de la partie haute (couvercle) 230H; ... ; 235H correspondante, notamment lors des phases de mise en place ou de sortie des récipients. A cet effet, chaque partie basse est associée à des moyens tels qu'une tige de guidage, respectivement 250; ... ; 255 coulissant par exemple dans un palier 260; ... ; 265 ménagé dans la structure mobile 24.Furthermore, in the illustrated embodiments by Figures 5 and 6, each lower part 230B; ...; 235B can be moved away from the upper part (cover) 230H; ...; 235H corresponding, especially during the phases for placing or removing containers. To this end, each lower part is associated with means such as a guide rod, respectively 250; ...; 255 sliding for example in a bearing 260; ...; 265 housed in the mobile structure 24.

    De préférence, comme illustré par ces figures 5 et 6, la structure mobile 24 provoque un déplacement à composante horizontale des parties hautes et basses respectivement, et les moyens 250; ... ; 255; 260; ... ; 265, provoquent une translation verticale des parties basses 230B; ... ; 235B par rapport à la structure mobile lors de son déplacement dans le sens de la flèche 27, et donc par rapport aux parties hautes 230H; ... ; 235H.Preferably, as illustrated by these figures 5 and 6, the mobile structure 24 causes a component displacement horizontal of the upper and lower parts respectively, and the means 250; ...; 255; 260; ...; 265, cause a vertical translation of the lower parts 230B; ...; 235B relative to the mobile structure during its displacement in the direction of arrow 27, and therefore in relation to upper parts 230H; ...; 235H.

    Pour la translation verticale, on prévoit, par exemple, comme illustré par ces figures 5 et 6, une came fixe 28 agissant sur un galet 290; ... ; 295 respectif, associé à chaque tige 250; ... ; 255.For vertical translation, we provide, for example, as illustrated by these figures 5 and 6, a cam fixed 28 acting on a roller 290; ...; 295 respective, associated with each rod 250; ...; 255.

    Plus précisément, la came 28 est fixée au châssis, non représenté, de l'installation, de sorte que lorsque le galet associé à une tige, et donc à la partie basse (réceptacle) correspondante, rencontre la came fixe, il suit le profil imposé par la forme de la came, provoquant un mouvement correspondant du réceptacle associé.More specifically, the cam 28 is fixed to the chassis, not shown, of the installation, so that when the roller associated with a rod, and therefore at the bottom (receptacle) corresponding, meets the fixed cam, it follows the profile imposed by the shape of the cam, causing a corresponding movement of the associated receptacle.

    Dans l'exemple illustré par les figures 5 et 6, un premier réceptacle 230B est en position basse; le récipient 220 correspondant vient d'être chargé; le galet 290 est en bas de la came.In the example illustrated by FIGS. 5 and 6, a first receptacle 230B is in the low position; the recipient 220 correspondent has just been charged; the roller 290 is in bottom of the cam.

    Le second réceptacle 231B correspondant au second récipient 221 est partiellement remonté.The second receptacle 231B corresponding to the second container 221 is partially reassembled.

    Les trois suivants 232B; ... ; 234B sont totalement remontés et au contact de leur couvercle 232H; ... ; 234H correspondant : les enceintes sont donc fermées, et la mise sous vide et/ou la mise en pression, de même que le remplissage, peuvent avoir lieu. The next three 232B; ...; 234B are totally reassembled and in contact with their cover 232H; ...; 234H corresponding: the speakers are therefore closed, and the vacuum and / or pressurization, as well as the filling, can take place.

    Le dernier réceptacle 235B enfin est en cours de descente, la bouteille 225 correspondante étant remplie et pouvant être libérée à l'issue de la descente.The last receptacle 235B is finally being lowering, the corresponding bottle 225 being filled and can be released at the end of the descent.

    Alternativement, on pourrait envisager que les parties basses soient fixes par rapport à la structure mobile 24, les parties hautes étant mobiles en translation verticale par rapport à cette structure. Cela compliquerait sensiblement l'installation car, comme illustré par les figures 5 et 6, les parties hautes sont associées à des têtes de remplissage 300; ... ; 305 respectives, avec des conduits non seulement pour le remplissage, mais encore pour la mise sous vide et/ou la mise en pression de l'intérieur de l'enceinte et/ou du récipient correspondant, et avec des moyens de maintien des récipients.Alternatively, one could consider that the lower parts are fixed relative to the structure mobile 24, the upper parts being mobile in translation vertical to this structure. That would complicate substantially the installation because, as illustrated by Figures 5 and 6, the upper parts are associated with filling heads 300; ...; 305 respective, with ducts not only for filling, but also for evacuating and / or pressurizing the interior of the enclosure and / or of the corresponding container, and with means for holding the containers.

    De préférence, comme illustré par la figure 7, l'installation peut être du type rotatif. La structure mobile 24 est alors un carrousel tournant autour d'un axe de rotation 31, ledit carrousel portant les enceintes plus généralement référencées en 23 avec une partie haute (couvercle) 23H et une partie basse (réceptacle) 23B, et la came 28 de guidage des galets 29 est alors en arc de cercle.Preferably, as illustrated in FIG. 7, the installation can be of the rotary type. The structure mobile 24 is then a carousel rotating around an axis 31, said carousel carrying the speakers more generally referenced in 23 with an upper part (cover) 23H and a lower part (receptacle) 23B, and the cam 28 for guiding the rollers 29 is then in an arc of circle.

    De façon connue en soi, les récipients sont introduits un par un dans l'installation (entrée matérialisée par la flèche 320 sur la figure 7); ils sont saisis au niveau de leur col par des pinces 330; ... ; 335 respectives, associées à chaque tête de remplissage 300; ... ; 305 (les pinces sont schématisées sur les figures 5 et 6). Les pinces sont mobiles verticalement, pour plaquer le buvant des récipients contre la tête de remplissage. Le mouvement de remontée de chaque pince s'effectue par exemple lorsque le réceptacle est en cours de remontée. Ceci est symbolisé par une flèche montante sur la pince 331 associée au récipient 221. In a manner known per se, the containers are entered one by one into the installation (entry materialized by arrow 320 in FIG. 7); they are gripped at their neck by pliers 330; ...; 335 respective, associated with each filling head 300; ...; 305 (the clamps are shown diagrammatically in Figures 5 and 6). The clamps are movable vertically, to press drinking the containers against the filling head. The upward movement of each clamp is effected by example when the receptacle is being reassembled. This is symbolized by a rising arrow on the pliers 331 associated with container 221.

    Après remplissage et éventuel dégazage du récipient et de l'enceinte associés, la pince 335 correspondante redescend, pour libérer le col du récipient 225 de la tête de remplissage, avant qu'il soit sorti de l'installation (la zone de sortie est matérialisée par la flèche 321 sur la figure 7).After filling and possible degassing of the container and the associated enclosure, the corresponding clamp 335 goes back down, to free the neck of the container 225 from the head filling, before it leaves the installation (the exit zone is indicated by arrow 321 on Figure 7).

    Afin d'éviter de surcharger les figures 5 et 6, on n'y a illustré que ceux, parmi les conduits, qui servent à assurer la mise en surpression interne des enceintes et des récipients et le remplissage de ces derniers. De même, on n'a pas illustré la connexion entre ces conduits et les sources de liquide et de gaz, ni les sources elles-mêmes, car l'homme du métier sera en mesure de reconstituer ces connexions à la lueur de la description.In order to avoid overloading Figures 5 and 6, we illustrated there only those, among the conduits, which are used to ensuring the internal overpressure of the enclosures and containers and filling thereof. Likewise, we did not illustrate the connection between these conduits and the sources of liquid and gas, or the sources themselves, because the skilled person will be able to reconstruct these connections in the glow of the description.

    Chaque tête 300; ... ; 305 est traversée par un conduit 340; ... ; 345 pour la mise en surpression interne du récipient (gazéification) et par un conduit 350; ... ; 355 pour le remplissage.Each head 300; ...; 305 is crossed by a conduit 340; ...; 345 for internal overpressure from the container (gasification) and through a conduit 350; ...; 355 for filling.

    Par ailleurs, un autre conduit 360; ... ; 365 est prévu pour la mise en surpression interne de l'enceinte.Furthermore, another conduit 360; ...; 365 is provided for the internal overpressure of the enclosure.

    Sur la figure 5, les conduits 360; ... ; 365 débouchent dans la partie basse 230B; ... ; 235B correspondante. Alternativement, comme illustré par la figure 6, ils débouchent dans la partie haute 230H; ... ; 235H.In Figure 5, the conduits 360; ...; 365 lead into the lower part 230B; ...; 235B corresponding. Alternatively, as illustrated by the Figure 6, they open in the upper part 230H; ...; 235H.

    Sur la figure 5, les conduits 340; ... ; 345 pour la gazéification des récipients sont indépendants de ceux 360; ... ; 365 pour la mise en surpression interne des enceintes. Ainsi, il est possible de mettre chaque enceinte en surpression avec un fluide distinct du gaz pour la gazéification du produit de remplissage. A titre d'exemple, il est possible d'utiliser de l'air comprimé pour mettre l'intérieur de l'enceinte en surpression. In Figure 5, the conduits 340; ...; 345 for the gasification of the containers are independent of those 360; ...; 365 for the internal overpressure of speakers. So it is possible to put each speaker overpressure with a fluid separate from the gas for the gasification of the filling product. For exemple, it is possible to use compressed air to put inside the overpressure enclosure.

    Sur la figure 6, chaque conduit 340; ... ; 345 pour la gazéification d'un récipient est associé (mise en dérivation) au conduit correspondant 360; ... ; 365 pour la mise en surpression de l'enceinte. Ainsi, le gaz pour la gazéification du récipient peut aussi être utilisé pour la mise en surpression de l'enceinte.In Figure 6, each conduit 340; ...; 345 for the gasification of a container is associated (setting bypass) to the corresponding conduit 360; ...; 365 for the overpressure of the enclosure. So the gas for the gasification of the container can also be used for the overpressure of the enclosure.

    Les opérations de mise en surpression et de remplissage s'effectuent après fermeture de l'enceinte, conformément à ce qui a été décrit en regard de la figure 3. Dans l'exemple des figures 5 et 6, le récipient 222 et l'enceinte 232H, 232B correspondante sont en cours de mise en surpression; le récipient 223 est en cours de remplissage, la pression dans ce récipient et dans l'enceinte sont maintenues (ce qui est matérialisé par un trait barrant le conduit 363 de mise en pression de l'enceinte), le récipient 224 est plein, et la pression est relâchée tant dans le récipient que dans l'enceinte; enfin, la partie basse 235B de l'enceinte associée au récipient 225, plein, est en cours de descente pour permettre la sortie de ce récipient.The overpressure and filling takes place after closure of the enclosure, in accordance with what has been described with regard to the figure 3. In the example of FIGS. 5 and 6, the container 222 and the corresponding 232H, 232B speaker are being set up overpressure; container 223 is being filling, the pressure in this container and in the enclosure are maintained (which is materialized by a line blocking the pressurization conduit 363 of enclosure), container 224 is full, and pressure is released both in the container and in the enclosure; finally, the lower part 235B of the enclosure associated with the container 225, full, is being lowered to allow the out of this container.

    Sur la figure 8, est représenté le schéma de principe d'une partie haute 23H perfectionnée adaptable au mode de réalisation de la figure 5, et permettant en outre la dépression dans le récipient et dans l'enceinte.Figure 8 shows the block diagram an improved 23H upper section adaptable to the embodiment of Figure 5, and further allowing the depression in the container and in the enclosure.

    En plus des conduits, plus généralement désignés par 34, pour la gazéification du récipient 22, au travers de la tête 30 de remplissage, 36 pour la mise en surpression de l'enceinte, et 35 pour le remplissage au travers de la tête 30, sont prévus deux conduits, respectivement 37 pour la mise sous vide de l'enceinte et 38 pour la mise sous vide du récipient 22, au travers de la tête 30. Ces deux derniers conduits sont, soit reliés entre eux comme illustré par la figure 8, ce qui permet de les connecter à une pompe à vide commune (non représentée), soit non reliés entre eux et connectés à des pompes séparées. In addition to the conduits, more generally designated by 34, for the gasification of the container 22, through the filling head 30, 36 for the overpressure of the enclosure, and 35 for filling through the head 30, two conduits are provided, respectively 37 for the vacuuming the enclosure and 38 for vacuuming of the container 22, through the head 30. These two last conduits are either interconnected as illustrated by figure 8, which allows them to be connected to a common vacuum pump (not shown), either not connected between them and connected to separate pumps.

    Par ailleurs, les conduits 34 pour la gazéification du contenu et 36 pour la mise en surpression de l'enceinte sont séparés, permettant par exemple de mettre l'enceinte en surpression à l'aide d'air comprimé.Furthermore, the conduits 34 for gasification of content and 36 for the overpressure of the enclosure are separated, allowing for example to put the speaker overpressure using compressed air.

    Sur la figure 9, qui est un schéma de principe d'une partie haute 23H perfectionnée adaptable au mode de réalisation de la figure 6, en permettant en outre de réaliser une dépression dans l'enceinte et dans le récipient 22, on retrouve les mêmes conduits que sur la figure 8, mais les conduits respectivement 34 pour la gazéification du contenu et 36 pour la mise en surpression de l'enceinte sont reliés entre eux, permettant une mise en surpression de l'enceinte avec le gaz de gazéification.In Figure 9, which is a block diagram of a 23H improved upper part adaptable to the mode of embodiment of Figure 6, further allowing achieve a depression in the enclosure and in the container 22, there are the same conduits as on the Figure 8, but the conduits respectively 34 for the gasification of the content and 36 for the overpressure of the enclosure are interconnected, allowing a setting overpressure of the enclosure with the gasification gas.

    Un problème présenté par les modes de réalisation des figures 5, 6, 8, 9 est que deux 34, 35 ou trois 34, 35, 38 conduits traversent la tête 30 de remplissage, ce qui complique quelque peu sa constitution.A problem presented by the embodiments of the figures 5, 6, 8, 9 is that two 34, 35 or three 34, 35, 38 conduits pass through the filling head 30, which somewhat complicates its constitution.

    C'est pourquoi, dans un mode de réalisation illustré par la figure 10, on prévoit que les conduits sont reliés à une vanne 39 à commande 40 mécanique, électrique ou autre.This is why, in an illustrated embodiment in Figure 10, it is expected that the conduits are connected to a valve 39 with mechanical, electrical or other control 40.

    Un conduit intermédiaire 41 est relié à la tête 30 et met en communication cette vanne et l'intérieur du récipient 22. En agissant sur la commande 40, on met en communication l'intérieur du récipient 22 soit avec le conduit 38 de mise sous vide (lorsqu'il est présent) soit avec le conduit 34 de gazéification (lorsqu'il est présent), soit avec le conduit 35 de remplissage.An intermediate conduit 41 is connected to the head 30 and connects this valve and the interior of the container 22. By acting on the control 40, the communication inside the container 22 either with the vacuum duct 38 (when present) either with the gasification duct 34 (when it is present), either with the filling duct 35.

    L'invention permet de remplir des récipients encore chauds et donc déformables sans qu'ils subissent de déformations irréversibles, en raison de la limitation du différentiel de pression qu'elle permet entre l'intérieur et l'extérieur des récipients. De plus, on a constaté que le liquide de remplissage, contribue à refroidir le fond des récipients, avant que la pression extérieure soit remise au niveau de l'ambiance. De ce fait, les fonds sont stabilisés lorsque la pression extérieure est relâchée.The invention makes it possible to fill containers still hot and therefore deformable without being subjected to irreversible deformations, due to the limitation of pressure differential it allows between the interior and the outside of the containers. In addition, it was found that the filling liquid, helps to cool the bottom containers, before the external pressure is up to the level of the atmosphere. As a result, the funds are stabilized when the external pressure is released.

    Bien entendu, l'invention n'est pas limitée aux modes de réalisation décrits. Elle en embrasse au contraire toutes les variantes comprises dans le cadre défini par les revendications.Of course, the invention is not limited to the modes of realization described. On the contrary, it embraces all the variants included in the framework defined by the claims.

    Claims (24)

    1. Process for avoiding the deformation or irreversible damaging of a plastics flask (8; 22; 220; ...225), comprising at least one zone whose temperature exceeds the melting temperature of the material, in a filling operation comprising a phase in the course of which a significant pressure difference arises between the interior of the flask and the surroundings external to the filling installation, characterized in that, at least during a part of the said phase, as long as it is not thermically stabilized and is still deformable, the flask is placed in a leak-tight shell (9; 23B, 23H; 230B, 230H; ...; 235B, 235H) isolating it from the external surroundings and the pressure inside the shell is adjusted in such a way relative to the external surroundings as to reduce, or even eliminate, the pressure difference between the interior and exterior of the flask.
    2. Process according to Claim 1, characterized in that the pressure difference between the interior of the flask and the external surroundings is obtained by creating a vacuum (17) in the flask and the pressure inside the shell is adjusted by reducing it (18) in order to bring it closer to, or even reach, that of the interior of the flask.
    3. Process according to Claim 1, characterized in that, the filling being effected with a product, such as a liquid, gasified, and consequently comprising a preliminary phase utilizing the gas used for the gasification to create an excess pressure (12) inside the flask, the adjustment of the pressure inside the shell is realized by injecting (13) a pressurized fluid into the shell.
    4. Process according to Claim 3, characterized in that the fluid is a gas.
    5. Process according to Claim 4, characterized in that the gas injected into the shell is the same as that used for the gasification inside the flask.
    6. Process according to Claim 4, characterized in that the gas injected into the flask is different from that injected into the shell.
    7. Process according to Claim 6, characterized in that the gas is compressed air.
    8. Process according to one of Claims 1 to 7, characterized in that the pressure adjustment in the shell and the pressure adjustment in the flask take place simultaneously.
    9. Process according to Claim 2, characterized in that the pressure reduction in the shell is initiated before that in the flask.
    10. Process according to one of Claims 3 to 7, characterized in that the pressure adjustment in the shell, for the creation therein of an excess pressure, is initiated after that in the flask.
    11. Process according to one of Claims 1 to 10 applied to the filling of plastics flasks obtained by heating, then blowing, alternatively drawing / blowing, of preforms, immediately following the blowing, alternatively the drawing / blowing.
    12. Process according to one of Claims 1 to 10, characterized in that it consists in putting the interior of the flask in communication with a filling pipe (14; 21; 35; 350; ...; 355) and in putting the interior of the shell and the interior of the flask in communication with means for adjusting the pressure inside the shell and inside the flask.
    13. Process according to Claim 12, characterized in that the means for adjusting the pressure inside a shell are constituted by a pipe (37) putting the shell in communication with means for reducing (18) the pressure inside the shell, and means for adjusting the pressure in the flask are constituted by a pipe (38) putting the flask in communication with means for reducing (17) the pressure inside the flask.
    14. Process according to Claim 13, characterized in that the pipes (37; 38) linked to a shell are connected one to the other and to a single means, such as a vacuum pump, for reducing the pressure in the shell and in the flask.
    15. Process according to Claim 14, characterized in that the pipes (37; 38) linked to a shell are connected to separate means, such as vacuum pumps, for reducing the pressure in the shell and in the flask.
    16. Process according to Claim 12, characterized in that the means for adjusting the pressure inside a shell are constituted by a pipe (36, 360; ...; 365) putting the shell in communication with means for increasing (13) the internal pressure therein, and the means for adjusting the pressure in the flask are constituted by a pipe (34; 340; ...; 345) putting the flask in communication with means for increasing (12) the internal pressure therein.
    17. Process according to Claim 16, characterized in that the pipes (36; 360; ...; 365; 34; 340; ...; 345) linked to a shell are connected one to the other and to a single fluid source for increasing the pressure in the shell and in the flask.
    18. Process according to Claim 17, characterized in that, the filling product being gasified, the single fluid source is the source of production of the gasification gas.
    19. Process according to Claim 16, characterized in that the pipes (36; 360; ...; 365; 34; 340; ...; 345) linked to a same shell are linked to separate fluid sources for increasing the pressure in the shell and in the flask.
    20. Installation for implementing the process according to one of Claims 1 to 19, characterized in that a shell comprises two mutually separable parts, a top part (23H; 230H; ...; 235H) forming a lid linked to the filling head (30; 300; ...; 305) and a bottom part (23B; 230B; ...; 235B) forming a receptacle for collection of the flask (22; 220; ...; 225), the flask being gripped at the level of its neck in the said shell.
    21. Installation according to Claim 20, characterized in that it comprises means (28; 250...; 255; 260; ...; 265; 290; ...; 295) for bringing each cap closer to or moving it away from the corresponding receptacle.
    22. Installation according to Claim 21, characterized in that it comprises means (24) for supporting the top parts and the bottom parts, whilst allowing a top part to be brought closer to the corresponding bottom part, and for transporting the said parts on a predetermined course (27).
    23. Installation according to Claim 21, characterized in that the means (24) for supporting and transporting a shell are a carousel turning about an axis (31) and the means for bringing together the top and bottom parts are constituted by a cam (28) which is fixed relative to the installation, the said cam cooperating with at least one roller (290; ...; 295) linked to a rod (250; ...; 255) for supporting and guiding one of the parts of the shell.
    24. Installation according to Claim 23, characterized in that the rod supports the bottom part (230B; ...; 235B) of the shell.
    EP98939709A 1997-07-22 1998-07-20 Method for filling containers and installation therefor Expired - Lifetime EP0998424B1 (en)

    Applications Claiming Priority (3)

    Application Number Priority Date Filing Date Title
    FR9709546A FR2766473B1 (en) 1997-07-22 1997-07-22 PROCESS FOR FILLING CONTAINERS, AND INSTALLATION FOR IMPLEMENTING
    FR9709546 1997-07-22
    PCT/FR1998/001577 WO1999005061A1 (en) 1997-07-22 1998-07-20 Method for filling containers and installation therefor

    Publications (2)

    Publication Number Publication Date
    EP0998424A1 EP0998424A1 (en) 2000-05-10
    EP0998424B1 true EP0998424B1 (en) 2002-12-11

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    EP98939709A Expired - Lifetime EP0998424B1 (en) 1997-07-22 1998-07-20 Method for filling containers and installation therefor

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    US (1) US6220310B1 (en)
    EP (1) EP0998424B1 (en)
    JP (1) JP3361797B2 (en)
    KR (1) KR20010022035A (en)
    CN (1) CN1265079A (en)
    AT (1) ATE229473T1 (en)
    AU (1) AU747687B2 (en)
    BR (1) BR9811520A (en)
    CA (1) CA2297267C (en)
    DE (1) DE69810116T2 (en)
    ES (1) ES2189221T3 (en)
    FR (1) FR2766473B1 (en)
    WO (1) WO1999005061A1 (en)

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    CA2297267A1 (en) 1999-02-04
    CN1265079A (en) 2000-08-30
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    JP2001510768A (en) 2001-08-07
    FR2766473B1 (en) 1999-09-17
    DE69810116T2 (en) 2003-09-11
    FR2766473A1 (en) 1999-01-29
    CA2297267C (en) 2003-03-18
    BR9811520A (en) 2005-09-27
    AU8812898A (en) 1999-02-16
    AU747687B2 (en) 2002-05-16
    DE69810116D1 (en) 2003-01-23
    JP3361797B2 (en) 2003-01-07
    US6220310B1 (en) 2001-04-24
    ES2189221T3 (en) 2003-07-01
    EP0998424A1 (en) 2000-05-10
    KR20010022035A (en) 2001-03-15

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