WO1997038791A1 - Cap comprising a ring and a teat-shaped portion - Google Patents

Cap comprising a ring and a teat-shaped portion Download PDF

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Publication number
WO1997038791A1
WO1997038791A1 PCT/FR1997/000660 FR9700660W WO9738791A1 WO 1997038791 A1 WO1997038791 A1 WO 1997038791A1 FR 9700660 W FR9700660 W FR 9700660W WO 9738791 A1 WO9738791 A1 WO 9738791A1
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WO
WIPO (PCT)
Prior art keywords
ring
projecting part
stopper
teat
stopper according
Prior art date
Application number
PCT/FR1997/000660
Other languages
French (fr)
Inventor
Nicolas Yves Bara
Claude René JIPPE
Original Assignee
Central Labo Europe (S.A.R.L.)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Central Labo Europe (S.A.R.L.) filed Critical Central Labo Europe (S.A.R.L.)
Priority to EP97918217A priority Critical patent/EP0892679A1/en
Publication of WO1997038791A1 publication Critical patent/WO1997038791A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L3/00—Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
    • B01L3/50—Containers for the purpose of retaining a material to be analysed, e.g. test tubes
    • B01L3/508—Containers for the purpose of retaining a material to be analysed, e.g. test tubes rigid containers not provided for above
    • B01L3/5082—Test tubes per se
    • B01L3/50825—Closing or opening means, corks, bungs
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
    • A61J11/00—Teats
    • A61J11/04—Teats with means for fastening to bottles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L3/00—Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
    • B01L3/02—Burettes; Pipettes
    • B01L3/0282—Burettes; Pipettes mounted within a receptacle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/16—Making multilayered or multicoloured articles
    • B29C45/1676—Making multilayered or multicoloured articles using a soft material and a rigid material, e.g. making articles with a sealing part
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D47/00—Closures with filling and discharging, or with discharging, devices
    • B65D47/04—Closures with discharging devices other than pumps
    • B65D47/06—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages
    • B65D47/18—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages for discharging drops; Droppers

Definitions

  • the present invention relates to a plug of the type having a ring made of a rigid material able to cooperate with the neck of a container and a projecting part made of an elastically deformable material.
  • Such caps are used to form dispensers, for example dropper for medical or paramedical products, or to form teats for bottles or the like.
  • plugs of this type consist of two separate parts, and depending on the desired application, a third part.
  • the first part is a molded plastic ring which has a front part pierced with an opening into which is inserted the end of a second part constituted by an elastic nipple.
  • This second part generally has a groove coming to bear on the peripheral edge of one opening.
  • the assembly of these two parts is a delicate operation. Indeed, it is necessary to introduce the nipple into the opening of the ring, then exert sufficient traction to deform the end provided with the groove and make it penetrate into the opening of the ring, without however exerting a force such that the nipple does not come out of the ring.
  • the protruding part is looking for a flexible and firm material, having a pleasant hold and texture and significant elasticity, allowing the return to the initial shape after handling. Since then, and although the difficulty of assembling such plugs constitutes a real technical problem, no satisfactory solution has been provided.
  • the object of the present invention is to remedy the drawbacks mentioned above by proposing a plug eliminating assembly difficulties without imposing unfavorable compromises for the various functions of the plug.
  • the invention relates to a stopper comprising a ring made of a rigid material and a projecting part made of an elastic material forming a single piece. This part is advantageously, but not exclusively, produced by co-molding in a single imprint supplied with materials of different nature.
  • the ring has a shoulder and the projecting part extends over the inner front surface of said shoulder.
  • the material constituting the ring and the material constituting the projection interpenetrate in an interface zone between the ring and the projection.
  • the projecting part is made of an elastomer and in that the ring is made of polyethylene.
  • the projecting part forms a teat-shaped metering device and has an internal groove for the attachment of a hollow conduit.
  • the projecting part forms a teat-shaped metering device, and in that the ring has a thread capable of cooperating with the neck of a complementary screw thread provided on a container such as a bottle or a bottle. mineral water.
  • the invention also relates to a method for manufacturing a stopper comprising a rigid ring and an elastic protruding part, characterized in that a first material such as polyethylene is injected into a single cavity, through a first injection orifice. , and by a second injection orifice a second material such as an elastomer.
  • the first material forming the ring is successively injected, and then the second material forming the projection, the temperature and the moment of injection of the second material being determined so as to allow interpenetration of the two materials over only part of the thickness of the first material.
  • the materials are injected into an impression comprising a retractable drawer by a combined movement of rotation and translation, said drawer delimiting in a first position the injection volume of the ring and in a second position the volume injection of the projecting part.
  • the single figure shows a vertical vertical sectional view of a bottle with a stopper according to the invention
  • the single figure shows a view along a median sectional plane of a bottle provided with a stopper according to the invention.
  • the bottle (1) is a bottle of known type, having a neck (2) provided with a threaded part (3).
  • the plug (4) has at its lower part a ring (10) having a complementary thread (6).
  • This ring (10) has an annular part (5) extended by a shoulder (7) defining a circular front opening (8).
  • the annular part (10) of the ring has on its outer surface grooves (15) facilitating the gripping and tightening of the stopper on the bottle.
  • the second part (9) of the stopper is a hollow protruding part in the form of a nipple extended by a base (11) which widens to cover the shoulder (7) of the ring (5).
  • the protruding part (9) widens at its lower part to form an O-ring (13) which covers at least partially the surface inside of the shoulder (7) of the ring (5). This gives a very good seal of the connection between the bottle (1) and the stopper.
  • the projecting part (9) also has an internal groove (12) capable of receiving the annular collar provided at the end of a pipette.
  • the first part (5) forming the ring is made of a rigid molded material, for example polyethylene without external lubricant.
  • the protruding part (9) is made of an elastically deformable material, such as an elastomer.
  • the two materials are co-molded. They are introduced into a single imprint.
  • the polyethylene is first introduced into a mold comprising a drawer movable in rotation and in translation. After injection of the polyethylene, the drawer is moved by a "screwing" movement and clears the injection space of the elastomer. This is introduced before the polyethylene has time to cool completely, so that an interpenetration of the two materials occurs at the junction between the ring and the protruding part.
  • the present invention is described in the foregoing by way of nonlimiting example. It is understood that the skilled person will be able to produce different variants.
  • the ring may be completed by a tamper-evident seal making it possible to detect attempts at opening, or else to have any external shape.
  • the invention is also not limited to a manufacturing technique, nor to an application of dropper. It is possible to use such caps for many applications, in particular for the production of bottle nipples then requiring the piercing of the end of the protruding part, or for any other application, whatever the geometric shape of the elastic projecting part.

Abstract

A cap of a type comprising a ring of rigid material able to interact with the neck (2) of a container (1), and a protruding portion of resiliently deformable material, characterized in that the ring (5) and the protruding portion (9) form a single unit.

Description

BOUCHON PRESENTANT UNE BAGUE ET UNE PARTIE PLUG HAVING A RING AND A PART
EN FORME DE TETINE.IN THE FORM OF A TETINE.
La présente invention concerne un bouchon du type présentant une bague en un matériau rigide apte à coopérer avec le col d'un récipient et une partie saillante en un matériau deformable élastiquement. De tels bouchons sont employés pour former des doseurs, par exemple des compte-gouttes pour des produits médicaux, ou paramédicaux, ou encore pour former des tétines pour biberons ou analogues . Dans l'art antérieur, les bouchons de ce type sont constitués de deux pièces séparées, et suivant l'application recherchée, d'une troisième pièce.The present invention relates to a plug of the type having a ring made of a rigid material able to cooperate with the neck of a container and a projecting part made of an elastically deformable material. Such caps are used to form dispensers, for example dropper for medical or paramedical products, or to form teats for bottles or the like. In the prior art, plugs of this type consist of two separate parts, and depending on the desired application, a third part.
La première pièce est une bague moulée en matière plastique qui présente une partie frontale percée d'une ouverture dans laquelle est introduite l'extrémité d'une deuxième pièce constituée par une tétine élastique. Cette deuxième pièce présente généralement une rainure venant s 'appuyer sur le bord périphérique de 1 'ouverture. L'assemblage de ces deux pièces constitue une opération délicate. En effet, il faut introduire la tétine dans l'ouverture de la bague, puis exercer une traction suffisante pour déformer l'extrémité munie de la rainure et la faire pénétrer dans l'ouverture de la bague, sans toutefois exercer une force telle que la tétine ne ressorte de la bague. Ce dosage précis de la force d'introduction de la tétine et de la bague rend très difficile l'automatisation de cette opération, et se traduit, dans le cas d'assemblage manuel, par des échecs répétés, ce qui augmente le temps, et donc le coût, de production. Cette difficulté est encore augmentée dans le cas de la réalisation de compte-gouttes à pipette. Dans ce cas, une fois que la tétine et la bague sont assemblées, il faut introduire la pipette dans la tétine et la presser jusqu'à ce que le rebord annulaire de la pipette vienne se loger dans une rainure prévue à l'intérieure de la tétine. Il est fréquent que la force exercée sur la pipette soit excessive, et entraine le désassemblage de la tétine et de la bague. Ce problème est très important, et a conduit il y près de vingt ans un fabricant à tenter de le résoudre par un capuchon monomatière. Ce dispositif est décrit dans le brevet français FR2319538. Le bouchon est formé par moulage d'une matière unique élastique. Ce dispositif n'est pas totalement satisfaisant. Il conduit en effet à l'utilisation d'un matériau qui n'est pas adapté à la fonction de vissage sur le col du récipient. Il impose un mauvais compromis entre l'élasticité recherchée pour la partie saillante, et la rigidité recherchée pour la bague. Les caractéristiques des deux parties du bouchon sont en effet contradictoires. On recherche une grande rigidité de la partie vissante, pour permettre un vissage énergique du bouchon sur le flacon. L'emploi d'un matériau souple n'est donc pas adapté car il a tendance à ne pas résister aux contraintes mécaniques s'exerçant au niveau des filetages. Par contre, on recherche pour la partie saillante un matériau souple et ferme, présentant une tenue et une texture agréable et une élasticité importante, permettant le retour à la forme initiale après des manipulations. Depuis, et bien que la difficulté d'assemblage de tels bouchons constitue un réel problème technique, aucune solution satisfaisante n'a été apportée.The first part is a molded plastic ring which has a front part pierced with an opening into which is inserted the end of a second part constituted by an elastic nipple. This second part generally has a groove coming to bear on the peripheral edge of one opening. The assembly of these two parts is a delicate operation. Indeed, it is necessary to introduce the nipple into the opening of the ring, then exert sufficient traction to deform the end provided with the groove and make it penetrate into the opening of the ring, without however exerting a force such that the nipple does not come out of the ring. This precise dosage of the force of introduction of the teat and the ring makes it very difficult to automate this operation, and results, in the case of manual assembly, by repeated failures, which increases the time, and therefore the cost of production. This difficulty is further increased in the case of making dropper pipettes. In this case, once the teat and the ring are assembled, you must introduce the pipette into the teat and squeeze it until the annular rim of the pipette is received in a groove provided inside the nipple. It is common that the force exerted on the pipette is excessive, and leads to the disassembly of the teat and the ring. This problem is very important, and led a manufacturer almost twenty years ago to try to solve it with a single-material cap. This device is described in French patent FR2319538. The plug is formed by molding a single elastic material. This device is not entirely satisfactory. It in fact leads to the use of a material which is not suitable for the screwing function on the neck of the container. It imposes a bad compromise between the elasticity sought for the protruding part, and the rigidity sought for the ring. The characteristics of the two parts of the stopper are indeed contradictory. We are looking for a great rigidity of the screwing part, to allow an energetic screwing of the stopper on the bottle. The use of a flexible material is therefore not suitable since it tends not to withstand the mechanical stresses exerted on the threads. On the other hand, the protruding part is looking for a flexible and firm material, having a pleasant hold and texture and significant elasticity, allowing the return to the initial shape after handling. Since then, and although the difficulty of assembling such plugs constitutes a real technical problem, no satisfactory solution has been provided.
L'objet de la présente invention est de remédier aux inconvénients précédemment évoqués en proposant un bouchon supprimant les difficultés d'assemblage sans pour autant imposer de compromis défavorables pour les différentes fonctions du bouchon. L'invention concerne à cet effet un bouchon comportant une bague en un matériau rigide et une partie saillante en un matériau élastique formant une pièce unique. Cette pièce est avantageusement, mais non exclusivement, réalisée par co-moulage dans une empreinte unique alimentée des matériaux de nature différente.The object of the present invention is to remedy the drawbacks mentioned above by proposing a plug eliminating assembly difficulties without imposing unfavorable compromises for the various functions of the plug. To this end, the invention relates to a stopper comprising a ring made of a rigid material and a projecting part made of an elastic material forming a single piece. This part is advantageously, but not exclusively, produced by co-molding in a single imprint supplied with materials of different nature.
Selon un mode de réalisation préféré, la bague présente un épaulement et la partie saillante se prolonge sur la surface frontale intérieure dudit épaulement.According to a preferred embodiment, the ring has a shoulder and the projecting part extends over the inner front surface of said shoulder.
Avantageusement, le matériau constituant la bague et le matériau constituant la partie saillante s'interpénétrent dans une zone d'interface entre la bague et la partie saillante.Advantageously, the material constituting the ring and the material constituting the projection interpenetrate in an interface zone between the ring and the projection.
Selon un mode de réalisation particulier, la partie saillante est réalisée en un élastomère et en ce que la bague est réalisée en polyéthylène.According to a particular embodiment, the projecting part is made of an elastomer and in that the ring is made of polyethylene.
Selon une première application, la partie saillante forme un doseur en forme de tétine et présente une rainure interne pour l'accrochage d'un conduit creux.According to a first application, the projecting part forms a teat-shaped metering device and has an internal groove for the attachment of a hollow conduit.
Selon une deuxième application, la partie saillante forme un doseur en forme de tétine, et en ce que la bague présente un filet apte à coopérer avec le col d'un filet de vissage complémentaire prévu sur un récipient tel qu'un biberon ou une bouteille d'eau minérale.According to a second application, the projecting part forms a teat-shaped metering device, and in that the ring has a thread capable of cooperating with the neck of a complementary screw thread provided on a container such as a bottle or a bottle. mineral water.
L' invention concerne également un procédé de fabrication d'un bouchon comportant une bague rigide et une partie saillante élastique caractérisé en ce que l'on injecte dans une empreinte unique, par un premier orifice d'injection, un premier matériau tel que du polyéthylène, et par un deuxième orifice d'injection un second matériau tel qu'un élastomère.The invention also relates to a method for manufacturing a stopper comprising a rigid ring and an elastic protruding part, characterized in that a first material such as polyethylene is injected into a single cavity, through a first injection orifice. , and by a second injection orifice a second material such as an elastomer.
De préférence, on injecte successivement le premier matériau formant la bague, et ensuite le second matériau formant la partie saillante, la température et le moment d'injection du second matériau étant déterminée de façon à permettre une interpénétration des deux matériaux sur une partie seulement de l'épaisseur du premier matériau.Preferably, the first material forming the ring is successively injected, and then the second material forming the projection, the temperature and the moment of injection of the second material being determined so as to allow interpenetration of the two materials over only part of the thickness of the first material.
Selon un mode de réalisation préféré, on injecte les matériaux dans une empreinte comportant un tiroir escamotable par un mouvement combiné de rotation et de translation, ledit tiroir délimitant dans une première position le volume d'injection de la bague et dans une deuxième position le volume d'injection de la partie saillante. L'invention sera mieux comprise à la lecture de la description d'un exemple de réalisation non limitatif, faisant référence aux dessins annexés où :According to a preferred embodiment, the materials are injected into an impression comprising a retractable drawer by a combined movement of rotation and translation, said drawer delimiting in a first position the injection volume of the ring and in a second position the volume injection of the projecting part. The invention will be better understood on reading the description of a nonlimiting exemplary embodiment, referring to the appended drawings where:
- la figure unique représente une vue en coupe verticale médiane d'un flacon muni d'un bouchon selon 1 ' invention ;- The single figure shows a vertical vertical sectional view of a bottle with a stopper according to the invention;
La figure unique représente une vue selon un plan de coupe médiane d'un flacon muni d'un bouchon selon l'invention. Le flacon (1) est un flacon de type connu, présentant un col (2) muni d'une partie filetée (3) . Le bouchon (4) présente à sa partie inférieure une bague (10) présentant un filetage (6) complémentaire. Cette bague (10) présente une partie annulaire (5) prolongée par un épaulement (7) définissant une ouverture frontale (8) circulaire. La partie annulaire (10) de la bague présente à sa surface extérieure des cannelures (15) facilitant la préhension et le serrage du bouchon sur le flacon.The single figure shows a view along a median sectional plane of a bottle provided with a stopper according to the invention. The bottle (1) is a bottle of known type, having a neck (2) provided with a threaded part (3). The plug (4) has at its lower part a ring (10) having a complementary thread (6). This ring (10) has an annular part (5) extended by a shoulder (7) defining a circular front opening (8). The annular part (10) of the ring has on its outer surface grooves (15) facilitating the gripping and tightening of the stopper on the bottle.
La deuxième partie (9) du bouchon est une partie saillante creuse en forme de tétine prolongée par une embase (11) s 'élargissant pour venir recouvrir l'épaulement (7) de la bague (5) .The second part (9) of the stopper is a hollow protruding part in the form of a nipple extended by a base (11) which widens to cover the shoulder (7) of the ring (5).
La partie saillante (9) s'élargit au niveau de sa partie inférieure pour former un joint torique (13) venant recouvrir au moins partiellement la surface intérieure de l'épaulement (7) de la bague (5) . On obtient ainsi une très bonne étanchéité du raccordement entre le flacon (1) et le bouchon.The protruding part (9) widens at its lower part to form an O-ring (13) which covers at least partially the surface inside of the shoulder (7) of the ring (5). This gives a very good seal of the connection between the bottle (1) and the stopper.
La partie saillante (9) présente par ailleurs une rainure interne (12) apte à recevoir la collerette annulaire prévue à l'extrémité d'une pipette.The projecting part (9) also has an internal groove (12) capable of receiving the annular collar provided at the end of a pipette.
La première partie (5) formant la bague est réalisée en une matière rigide moulée, par exemple du polyéthylène sans lubrifiant externe.The first part (5) forming the ring is made of a rigid molded material, for example polyethylene without external lubricant.
La partie saillante (9) est réalisée en un matériau deformable élastiquement, tel qu'un élastomère.The protruding part (9) is made of an elastically deformable material, such as an elastomer.
Les deux matériaux sont co-moulés. Ils sont introduits dans une empreinte unique.The two materials are co-molded. They are introduced into a single imprint.
Le polyéthylène est introduit en premier dans un moule comportant un tiroir mobile en rotation et en translation. Après injection du polyéthylène, le tiroir est déplacé par un mouvement "vissant" et dégage l'espace d'injection de 1 'élastomère. Celui ci est introduit avant que le polyéthylène n'ait le temps de refroidir complètement, de façon à ce qu'il se produise une interpénétration des deux matériaux au niveau de la jonction entre la bague et la partie saillante.The polyethylene is first introduced into a mold comprising a drawer movable in rotation and in translation. After injection of the polyethylene, the drawer is moved by a "screwing" movement and clears the injection space of the elastomer. This is introduced before the polyethylene has time to cool completely, so that an interpenetration of the two materials occurs at the junction between the ring and the protruding part.
La présente invention est décrite dans ce qui précède à titre d'exemple non limitatif. Il est bien entendu que l'homme de métier sera à même de réaliser différentes variantes. En particulier, la bague pourra être complétée par un joint d'inviolabilité permettant de détecter des tentatives d'ouvertures, ou encore présenter une forme extérieure quelconque. L'invention n'est pas non plus limitée à une technique de fabrication, ni à une application de compte-gouttes. Il est possible d'utiliser de tels bouchons pour de nombreuses applications, en particulier pour la réalisation de tétines de biberon nécessitant alors le percement de l'extrémité de la partie saillante, ou pour tout autre application, et ce quelque soit la forme géométrique de la partie saillante élastique. The present invention is described in the foregoing by way of nonlimiting example. It is understood that the skilled person will be able to produce different variants. In particular, the ring may be completed by a tamper-evident seal making it possible to detect attempts at opening, or else to have any external shape. The invention is also not limited to a manufacturing technique, nor to an application of dropper. It is possible to use such caps for many applications, in particular for the production of bottle nipples then requiring the piercing of the end of the protruding part, or for any other application, whatever the geometric shape of the elastic projecting part.

Claims

REVENDICATIONS
1 - Bouchon du type présentant une bague en un matériau rigide apte à coopérer avec le col (2) d'un récipient (1) et une partie saillante en un matériau deformable élastiquement, caractérisé en ce que ladite bague (5) et ladite partie saillante (9) forment une pièce unique.1 - Cap of the type having a ring made of a rigid material capable of cooperating with the neck (2) of a container (1) and a projecting part made of an elastically deformable material, characterized in that said ring (5) and said part protruding (9) form a single piece.
2 - Bouchon selon la revendication 1 caractérisé en ce que la bague (5) présente un épaulement et en ce que la partie saillante se prolonge sur la surface frontale intérieure dudit épaulement.2 - Stopper according to claim 1 characterized in that the ring (5) has a shoulder and in that the projecting part extends on the inner front surface of said shoulder.
3 - Bouchon selon la revendication 1 ou 2 caractérisé en ce que le matériau constituant la bague (5)et la matériau constituant la partie saillante s ' interpénètrent dans une zone d'interface entre la bague (5) et la partie saillante.3 - Stopper according to claim 1 or 2 characterized in that the material constituting the ring (5) and the material constituting the projecting part are interpenetrated in an interface zone between the ring (5) and the projecting part.
4 - Bouchon selon la revendication 3 caractérise en ce que la partie saillante est réalisée en un élastomère et en ce que la bague (5) est réalisée en polyéthylène4 - Stopper according to claim 3 characterized in that the projecting part is made of an elastomer and in that the ring (5) is made of polyethylene
5 - Bouchon selon l'une quelconque des revendications précédentes caractérisé en ce que la partie saillante (9) forme un doseur en forme de tétine et présente une rainure interne pour l'accrochage d'un conduit creux.5 - Stopper according to any one of the preceding claims, characterized in that the projecting part (9) forms a teat-shaped metering device and has an internal groove for the attachment of a hollow duct.
6 - Bouchon selon l'une quelconque des revendications 1 à 5 caractérisé en ce que la partie saillante (9) forme un doseur en forme de tétine, et en ce que la bague (5) présente un filet apte à coopérer avec le col (2) d'un filet de vissage complémentaire prévu sur un récipient tel qu'un biberon ou une bouteille d'eau minérale. 7 - Procédé de fabrication d'un bouchon comportant une bague (5) rigide et une partie saillante (9) élastique caractérisé en ce que l'on injecte dans une empreinte unique, par un premier orifice d'injection, un premier matériau tel que du polyéthylène, et par un deuxième orifice d'injection un second matériau tel qu'un élastomère.6 - Stopper according to any one of claims 1 to 5 characterized in that the projecting part (9) forms a teat-shaped dispenser, and in that the ring (5) has a thread capable of cooperating with the neck ( 2) a complementary screw thread provided on a container such as a baby bottle or a bottle of mineral water. 7 - Method for manufacturing a stopper comprising a rigid ring (5) and an elastic projecting part (9) characterized in that a first material such as a first injection orifice is injected into a single cavity polyethylene, and through a second injection orifice a second material such as an elastomer.
8 - Procédé de fabrication d'un bouchon selon la revendication 7 caractérisé en ce que l'on injecte successivement le premier matériau formant la bague, et ensuite le second matériau formant la partie saillante, la température et le moment d'injection du second matériau étant déterminée de façon à permettre une interpénétration des deux matériaux sur une partie seulement de l'épaisseur du premier matériau.8 - A method of manufacturing a plug according to claim 7 characterized in that one successively injects the first material forming the ring, and then the second material forming the projecting part, the temperature and the injection time of the second material being determined so as to allow an interpenetration of the two materials over only part of the thickness of the first material.
9 - Procédé de fabrication d'un bouchon selon la revendication 7 ou 8 caractérisé en ce que l'on injecte les matériaux dans une empreinte comportant un tiroir escamotable par un mouvement combiné de rotation et de translation, ledit tiroir délimitant dans une première position le volume d'injection de la bague (5) et dans une deuxième position le volume d'injection de la partie saillante. 9 - A method of manufacturing a plug according to claim 7 or 8 characterized in that the materials are injected into an impression comprising a retractable drawer by a combined movement of rotation and translation, said drawer delimiting in a first position the injection volume of the ring (5) and in a second position the injection volume of the projection.
PCT/FR1997/000660 1996-04-12 1997-04-14 Cap comprising a ring and a teat-shaped portion WO1997038791A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP97918217A EP0892679A1 (en) 1996-04-12 1997-04-14 Cap comprising a ring and a teat-shaped portion

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR96/04591 1996-04-12
FR9604591A FR2747372B1 (en) 1996-04-12 1996-04-12 PLUG HAVING A RING AND A TEETH-SHAPED PART

Publications (1)

Publication Number Publication Date
WO1997038791A1 true WO1997038791A1 (en) 1997-10-23

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FR1997/000660 WO1997038791A1 (en) 1996-04-12 1997-04-14 Cap comprising a ring and a teat-shaped portion

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EP (1) EP0892679A1 (en)
FR (1) FR2747372B1 (en)
WO (1) WO1997038791A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0720730D0 (en) 2007-10-23 2007-12-05 Jackel Int Ltd Soother

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2870797A (en) * 1957-04-15 1959-01-27 Injection Molding Company Dropper assembly
WO1986006273A1 (en) * 1985-04-23 1986-11-06 L.S.R. Baby Products (U.K.) Limited Nipple
EP0300786A2 (en) * 1987-07-22 1989-01-25 Avent Medical Limited Combined one-piece feeding teat and cap and method of manufacture thereof
FR2618683A1 (en) * 1987-07-31 1989-02-03 Aguettant Lab Method for manufacturing access pieces of infusion liquid containers
EP0454493A2 (en) * 1990-04-26 1991-10-30 Charles Terrence Macartney Reinsertable closure for sample tubes

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2870797A (en) * 1957-04-15 1959-01-27 Injection Molding Company Dropper assembly
WO1986006273A1 (en) * 1985-04-23 1986-11-06 L.S.R. Baby Products (U.K.) Limited Nipple
EP0300786A2 (en) * 1987-07-22 1989-01-25 Avent Medical Limited Combined one-piece feeding teat and cap and method of manufacture thereof
FR2618683A1 (en) * 1987-07-31 1989-02-03 Aguettant Lab Method for manufacturing access pieces of infusion liquid containers
EP0454493A2 (en) * 1990-04-26 1991-10-30 Charles Terrence Macartney Reinsertable closure for sample tubes

Also Published As

Publication number Publication date
FR2747372B1 (en) 1998-06-26
FR2747372A1 (en) 1997-10-17
EP0892679A1 (en) 1999-01-27

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