EP0693435B1 - Drip preventing spout - Google Patents
Drip preventing spout Download PDFInfo
- Publication number
- EP0693435B1 EP0693435B1 EP95420194A EP95420194A EP0693435B1 EP 0693435 B1 EP0693435 B1 EP 0693435B1 EP 95420194 A EP95420194 A EP 95420194A EP 95420194 A EP95420194 A EP 95420194A EP 0693435 B1 EP0693435 B1 EP 0693435B1
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- EP
- European Patent Office
- Prior art keywords
- pouring
- spout
- container
- pouring device
- emerging
- 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
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- 239000012263 liquid product Substances 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract 1
- 239000007788 liquid Substances 0.000 description 28
- 238000000605 extraction Methods 0.000 description 9
- 239000012530 fluid Substances 0.000 description 8
- 238000003475 lamination Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 230000005499 meniscus Effects 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 201000005569 Gout Diseases 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D47/00—Closures with filling and discharging, or with discharging, devices
- B65D47/40—Closures with filling and discharging, or with discharging, devices with drip catchers or drip-preventing means
Definitions
- the present invention relates to closing devices in material plastic, used on various containers for various liquids, food or not. More precisely, it relates to the plugging of containers making use internal pressure to extract the contents from a pouring orifice or outlet, such as those with pump or flexible walls on which the user can apply a pressure.
- a capillary channel is provided formed in the thickness of the wall of the spout and opening out at the natural place of formation of the drop, so to involve the phenomenon of " ascent in the capillary tubes " to aspirate the drop and return it inside the container.
- the present invention aims to respond to the problem still unsolved so satisfactory, the elimination of the formation of the last drop of a liquid extracted from the outlet or pourer of a container, more particularly with internal extraction pressure, whatever the diameter of this orifice.
- the object of the invention can be used on all containers intended to contain liquid or semi-pasty products, whether food or not and whose extraction is ensured by an internal relative pressurization.
- the invention finds a preferred, but not limiting, application to containers with flexible walls, such than those frequently used in the domestic sector.
- the invention relates to an anti-drip pouring device for pressure extraction, of the type comprising a spout of general shape tubular having an outlet orifice bordered by a opened lip and taking birth from an upstream throttle connecting it to the container, such a device being characterized in that at least one through hole is formed in the wall of the spout in a region of the latter as close as possible to the constriction.
- ⁇ P is however reduced by the depression, certainly relative, but nevertheless existing, which settles in the container during the extraction. This results in a slow speed flow which imposes a large passage section 3 of the pouring element 2 , generally of the order of a few cm 2 . Under these conditions, the flow is always laminar, even in the case of liquids with very low viscosity.
- FIG. 2 makes it possible to understand the phenomenon of rupture of the liquid film, caused by the surface tension forces, as soon as the thickness of the layer of liquid becomes insufficient at the level of the part 4 .
- FIG. 2 illustrates the case of a liquid which does not wet the wall of the pouring element 2 .
- the volume of the drop remaining attached to the pouring spout is then proportional to the length X separating the part 4 of the end lip 5 defining the outlet edge of the pouring element.
- the lamination of the fluid is no longer carried out at the outlet of the pouring element, but at the level of the smallest passage section, as shown in 6 in the figure. 3 and which is generally extended by a pouring spout 7 of larger section and of more or less length, such a pouring spout finding its use in the geometric requirements for forming and adapting a closure cap.
- the maximum lamination point where the liquid film breaks is located at the constriction 6 , that is to say at the base of the pouring spout 7 which is responsible for the retention of a volume of liquid V 0 .
- the phenomenon to be considered here is that of the risk of automatic emptying of the liquid retained by a phenomenon of entrainment by the mass of liquid supplied by the pouring element.
- the object of the invention is to propose means making it possible precisely to avoid the retention of liquid in the volume V 0 and its automatic emptying after the flow, initiated by relative internal pressure, has ceased.
- These means consist, as shown in Figure 4 , in at least one through hole 9 formed in the wall of the spout 7 in a region located as close as possible to the constriction 6 , so as to eliminate the depression resulting from the cancellation of the liquid flow in the spout 7 when the internal relative pressure ceases.
- the pouring spout 7 is advantageously of cylindrical, even cylindro-conical tubular shape, and then receives the pressurized liquid from the flared side of the cone.
- the outlet or spout of the spout 7 is defined by the opposite extreme edge which is advantageously, but not necessarily, provided with a thin, open lip, 10 , the distance d between the throttle 6 and the lip 10 being able be arbitrary, or even limited to the direct connection of said lip with the constriction 6 .
- the hole (s) 9 have a diameter preferably between 0.5 and 1.5 mm and, in the event of plurality, are advantageously drilled along one or more straight planes transverse to the axis x-x ' spout 7 . In such a case, an implantation of the holes in alignment or staggered from one straight plane to another can be indifferently retained.
- the holes 9 can be described as recompression or more precisely as balanced pressure restoration orifices on either side of the throttle 6 .
- a flow restrictor can advantageously be integrated inside the spout.
- FIG. 5 shows an industrial embodiment of a pouring element or device, preferably but not exclusively of the stretchable type, adaptable to a container, not shown, using a relative internal pressure for extracting the liquid fluid which it contains.
- Such an element or device designated by the general reference 20 comprises a base 21 for adaptation on a container.
- the base 21 is extended by a stretching bellows 22 , itself extended by a neck 23 , preferably externally threaded, to allow the adaptation of a screwed closure cap 24 .
- the neck 23 constitutes by itself the constriction 6 which has been discussed previously.
- the neck 23 has, at the end, the lip 10 capable of cooperating with the internal face of the plug 24 .
- two diametrically opposite holes 9 are provided in the connection part between the lip 10 and the constriction formed by the neck 23 .
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Closures For Containers (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
- Basic Packing Technique (AREA)
- Cartons (AREA)
- Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
- Apparatus For Making Beverages (AREA)
Abstract
Description
La présente invention concerne les dispositifs de fermeture en matière plastique, utilisés sur divers récipients pour liquides variés, alimentaires ou non. D'une façon plus précise, elle se rapporte au bouchage de récipients faisant intervenir une pression interne pour extraire le contenu à partir d'un orifice verseur ou de sortie, tels que ceux à pompe ou à parois souples sur lesquels l'utilisateur peut exercer une pression.The present invention relates to closing devices in material plastic, used on various containers for various liquids, food or not. More precisely, it relates to the plugging of containers making use internal pressure to extract the contents from a pouring orifice or outlet, such as those with pump or flexible walls on which the user can apply a pressure.
Dans les systèmes connus de ce genre, on est généralement confronté au problème de la suppression de la goutte qui, après extraction du liquide, peut encore couler à partir de l'orifice verseur avec tous les inconvénients qui s'y attachent, tels que la pollution du récipient et/ou du milieu environnant.In known systems of this kind, one is generally confronted with the problem of gout removal which, after extraction of the liquid, can still flow from the pouring orifice with all the disadvantages attached to it, such as pollution of the container and / or the surrounding environment.
Pour supprimer cette goutte, on utilise généralement une lèvre de forme convenable qui entoure l'orifice de sortie et qui joue, dans certaines conditions de viscosité et de tension superficielle, le rôle de "coupe-goutte". Cependant, on constate que les systèmes à lèvre sont peu efficaces, dans le cas des récipients à parois souples ou à pompe, pour supprimer la formation d'une goutte.To remove this drop, we usually use a shaped lip suitable which surrounds the outlet and which plays, under certain conditions of viscosity and surface tension, the role of "drip cutter". However, we finds that lip systems are not very effective, in the case of containers with flexible or pumped walls, to suppress the formation of a drop.
Dans d'autres cas connus, mis en pratique pour des becs verseurs de cafetières, notamment, on prévoit un canal capillaire ménagé dans l'épaisseur de la paroi du bec verseur et débouchant à l'emplacement naturel de formation de la goutte, de façon à faire intervenir le phénomène "d'ascension dans les tubes capillaires" pour aspirer la goutte et la renvoyer à l'intérieur du récipient.In other known cases, put into practice for coffee spouts, in particular, a capillary channel is provided formed in the thickness of the wall of the spout and opening out at the natural place of formation of the drop, so to involve the phenomenon of " ascent in the capillary tubes " to aspirate the drop and return it inside the container.
Ce système présente cependant l'inconvénient de ne pas être efficacement utilisables dans le cas des fermetures de récipients à parois souples. En effet, compte tenu de la faible épaisseur des parois de telles fermetures, il est impossible de ménager des canaux capillaires dans leur épaisseur.However, this system has the disadvantage of not being efficiently usable in the case of closures of containers with flexible walls. Indeed, account given the small thickness of the walls of such closures, it is impossible to provide capillary channels in their thickness.
La présente invention vise à répondre au problème toujours non résolu de façon satisfaisante, de la suppression de la formation de la dernière goutte d'un liquide extrait à partir de l'orifice de sortie ou verseur d'un récipient, plus particulièrement à pression interne d'extraction, quel que soit le diamètre de cet orifice.The present invention aims to respond to the problem still unsolved so satisfactory, the elimination of the formation of the last drop of a liquid extracted from the outlet or pourer of a container, more particularly with internal extraction pressure, whatever the diameter of this orifice.
L'objet de l'invention peut être utilisé sur tous les récipients destinés à contenir des produits liquides ou semi-pâteux, qu'ils soient alimentaires ou non et dont l'extraction est assurée par une mise en pression relative interne. L'invention trouve une application préférée, mais non limitative, aux récipients à parois souples, tels que ceux fréquemment utilisés dans le domaine domestique.The object of the invention can be used on all containers intended to contain liquid or semi-pasty products, whether food or not and whose extraction is ensured by an internal relative pressurization. The invention finds a preferred, but not limiting, application to containers with flexible walls, such than those frequently used in the domestic sector.
L'invention concerne un dispositif verseur anti-goutte pour récipients à extraction par pression, du type comprenant un bec verseur de forme générale tubulaire possédant un orifice de sortie bordé par une lèvre épanouie et prenant naissance à partir d'un étranglement amont la reliant au récipient, un tel dispositif étant caractérisé en ce qu'au moins un trou débouchant est ménagé dans la paroi du bec verseur dans une région de ce dernier la plus proche possible de l'étranglement.The invention relates to an anti-drip pouring device for pressure extraction, of the type comprising a spout of general shape tubular having an outlet orifice bordered by a opened lip and taking birth from an upstream throttle connecting it to the container, such a device being characterized in that at least one through hole is formed in the wall of the spout in a region of the latter as close as possible to the constriction.
Diverses autres caractéristiques de l'invention apparaítront mieux dans la
description qui va suivre, référencée aux dessins annexés dans lesquels :
Pour mieux comprendre l'invention, il convient de caractériser le comportement de l'écoulement d'un fluide liquide, voire semi-pâteux, extrait d'un récipient à parois rigides par rapport à celui d'un même fluide extrait d'un récipient par pression relative interne résultant, par exemple, de l'actionnement d'une pompe ou de l'application d'une contrainte de compression sur des parois souples constitutives de tout ou partie du récipientTo better understand the invention, it is necessary to characterize the behavior of the flow of a liquid, even semi-pasty fluid, extracted from a container with rigid walls compared to that of the same fluid extracted from a container by internal relative pressure resulting, for example, from the actuation of a pump or the application of a compressive stress on flexible walls constituting all or part of the container
Dans le cas d'un récipient à parois rigides, tel que celui 1, en partie
schématisée à la figure 1, le fluide s'écoule à travers un dispositif verseur 2 sous
l'effet d'une pression ΔP très faible, duc à la hauteur h de la colonne de liquide de
densité ρ. Cette pression est gouvernée par la relation :
h = 5 cm et ρ = 1 g/cm3, d'où ΔP ∼ 100 Pascals (10-3 bar).In the case of a container with rigid walls, such as that 1 , partly shown diagrammatically in FIG. 1 , the fluid flows through a pouring device 2 under the effect of a very low pressure ΔP , due to the height h of the column of liquid of density ρ . This pressure is governed by the relationship:
h = 5 cm and ρ = 1 g / cm 3 , hence ΔP ∼ 100 Pascals (10 -3 bar).
La valeur ΔP est cependant diminuée par la dépression, certes relative, mais néanmoins existante, qui s'installe dans le récipient lors de l'extraction. Il en résulte un écoulement à vitesse lente qui impose une section de passage 3 importante de l'élément verseur 2, généralement de l'ordre de quelques cm2. Dans ces conditions, l'écoulement est toujours laminaire, même dans le cas des liquides à très faible viscosité.The value ΔP is however reduced by the depression, certainly relative, but nevertheless existing, which settles in the container during the extraction. This results in a slow speed flow which imposes a large passage section 3 of the pouring element 2 , generally of the order of a few cm 2 . Under these conditions, the flow is always laminar, even in the case of liquids with very low viscosity.
Pour évaluer le risque de formation de gouttes en sortie de l'élément verseur 2, il importe de comprendre le mécanisme qui préside à l'interruption du débit du liquide. Dans le cas évoqué d'un récipient à parois rigides, l'utilisateur, en réduisant l'inclinaison du récipient, provoque une lamination de plus en plus importante du liquide sur la partie de surface 4 définissant l'orifice de sortie ou verseur, comme cela est schématisé sur la figure 1.To assess the risk of drops forming at the outlet of the pouring element 2 , it is important to understand the mechanism which presides over the interruption of the flow of the liquid. In the mentioned case of a container with rigid walls, the user, by reducing the inclination of the container, causes an increasing lamination of the liquid on the surface part 4 defining the outlet or pourer, as this is shown diagrammatically in Figure 1 .
La figure 2 permet de comprendre le phénomène de rupture du film liquide, provoquée par les forces de tension superficielle, dès lors que l'épaisseur de la couche de liquide devient insuffisante au droit de la partie 4. La figure 2 illustre le cas d'un liquide ne mouillant pas la paroi de l'élément verseur 2.FIG. 2 makes it possible to understand the phenomenon of rupture of the liquid film, caused by the surface tension forces, as soon as the thickness of the layer of liquid becomes insufficient at the level of the part 4 . FIG. 2 illustrates the case of a liquid which does not wet the wall of the pouring element 2 .
La volume de la goutte restant accrochée au bec verseur est alors proportionnel à la longueur X séparant la partie 4 de la lèvre extrême 5 définissant le bord de sortie de l'élément verseur.The volume of the drop remaining attached to the pouring spout is then proportional to the length X separating the part 4 of the end lip 5 defining the outlet edge of the pouring element.
Il est important donc de concevoir des becs verseurs dans lesquels cette distance est aussi réduite que possible.It is therefore important to design spouts in which this distance is as short as possible.
Dans le cas d'un récipient à extraction par pression interne relative, tel qu'à parois souples, la force exercée par la main de l'utilisateur sur la paroi pour comprimer le liquide est typiquement de l'ordre de 10 N et s'exerce sur une surface de 1 dm2. Il s'ensuit une pression relative dans le récipient de l'ordre de 1000 Pascals et bien entendu, dans cette situation, aucun effet de dépression ne se manifeste, contrairement au cas de figure précédent.In the case of a container with extraction by relative internal pressure, such as with flexible walls, the force exerted by the hand of the user on the wall to compress the liquid is typically of the order of 10 N and s' exercises on a surface of 1 dm 2 . It follows a relative pressure in the container of the order of 1000 Pascals and of course, in this situation, no effect of depression is manifested, unlike the previous case.
On est donc soumis dans ce cas, à un écoulement sous une pression assez élevée qui conduit à l'emploi de dispositifs verseurs possédant généralement un faible diamètre avec, dans certains cas, des ailettes de lamination pour éliminer d'éventuelles turbulences et, en tous cas, réduire le débit.One is thus subjected in this case, to a flow under a pressure enough which leads to the use of pouring devices generally having a small diameter with, in some cases, lamination fins to eliminate possible turbulence and, in any case, reduce the flow.
Dans le cas d'un récipient à extraction par pression interne relative, la lamination du fluide ne s'effectue plus en sortie de l'élément verseur, mais au niveau de la plus faible section de passage, telle que montrée en 6 à la figure 3 et qui est généralement prolongée par un bec verseur 7 de section plus grande et de longueur plus ou moins importante, un tel bec verseur trouvant son utilité dans les exigences géométriques de formage et d'adaptation d'un bouchon de fermeture.In the case of a container with extraction by relative internal pressure, the lamination of the fluid is no longer carried out at the outlet of the pouring element, but at the level of the smallest passage section, as shown in 6 in the figure. 3 and which is generally extended by a pouring spout 7 of larger section and of more or less length, such a pouring spout finding its use in the geometric requirements for forming and adapting a closure cap.
Dans ces conditions, le point de lamination maximale où s'effectue la rupture du film liquide, est situé à l'étranglement 6, c'est-à-dire à la base du bec verseur 7 qui est responsable de la rétention d'un volume de liquide V0 . Le phénomène ici à considérer est alors celui du risque de vidage automatique du liquide retenu par un phénomène d'entraínement par la masse de liquide débitée par l'élément verseur.Under these conditions, the maximum lamination point where the liquid film breaks, is located at the constriction 6 , that is to say at the base of the pouring spout 7 which is responsible for the retention of a volume of liquid V 0 . The phenomenon to be considered here is that of the risk of automatic emptying of the liquid retained by a phenomenon of entrainment by the mass of liquid supplied by the pouring element.
L'invention a pour objet de proposer des moyens permettant d'éviter justement la rétention de liquide dans le volume V0 et son vidage automatique après que l'écoulement, initié par pression interne relative, a cessé. Ces moyens consistent, comme le montre la figure 4, en au moins un trou débouchant 9 ménagé dans la paroi du bec verseur 7 dans une région située le plus près possible de l'étranglement 6, de manière à éliminer la dépression résultant de l'annulation du débit liquide dans le bec verseur 7 lorsque cesse la pression relative interne.The object of the invention is to propose means making it possible precisely to avoid the retention of liquid in the volume V 0 and its automatic emptying after the flow, initiated by relative internal pressure, has ceased. These means consist, as shown in Figure 4 , in at least one through hole 9 formed in the wall of the spout 7 in a region located as close as possible to the constriction 6 , so as to eliminate the depression resulting from the cancellation of the liquid flow in the spout 7 when the internal relative pressure ceases.
L'explication fonctionnelle découlant de la présence du trou 9 peut être la
suivante. Pendant toute la phase d'écoulement du liquide le long du bec verseur 7,
de l'air atmosphérique est aspiré par le ou les orifices 9. Cet air se mélange au
liquide en formant des bulles, de telle sorte que la densité macroscopique ρ' de ce
liquide satisfasse à la relation de BERNOUILLI :
On a bien évidemment
L'injection d'air permet de maintenir constante la vitesse du fluide v1 , v2 , en évitant ainsi la transformation de l'écoulement laminaire en écoulement turbulent.The injection of air keeps the speed of the fluid v 1 , v 2 constant, thus avoiding the transformation of the laminar flow into turbulent flow.
La loi de conservation de la masse permet d'écrire
S1 étant la section du bec verseur au point le plus étranglé et S2 sa valeur au
point d'injection de l'air, on peut avoir
On conçoit que le liquide puisse continuer son mouvement à vitesse constante dans le bec verseur et ceci, même après que les forces de pression qui lui ont communiqué son énergie cinétique, ont cessé de se manifester.We can see that the liquid can continue its movement at constant speed in the spout and this, even after the pressure forces which have caused it communicated its kinetic energy, have ceased to manifest.
En d'autres termes, au moment où la pression interne dans le récipient s'annule, il y a annulation de la vitesse du fluide au point 6 le plus étranglé de l'écoulement, mais le fluide contenu dans le volume V0 continue, conformément au principe d'inertie, son déplacement à vitesse constante ce qui permet de vider le volume mort et par suite de supprimer la goutte.In other words, when the internal pressure in the container is canceled, the speed of the fluid at the most strangled point 6 of the flow is canceled, but the fluid contained in the volume V 0 continues, in accordance with the principle of inertia, its displacement at constant speed which makes it possible to empty the dead volume and consequently to remove the drop.
Le bec verseur 7 est avantageusement de forme tubulaire cylindrique, voire cylindro-conique, et alors reçoit le liquide sous pression du côté évasé du cône. L'orifice de sortie ou verseur du bec 7 est défini par le bord extrême opposé qui est avantageusement, mais non nécessairement, pourvu d'une lèvre fine, épanouie, 10, la distance d comprise entre l'étranglement 6 et la lèvre 10 pouvant être quelconque, voire limitée au raccordement direct de ladite lèvre avec l'étranglement 6.The pouring spout 7 is advantageously of cylindrical, even cylindro-conical tubular shape, and then receives the pressurized liquid from the flared side of the cone. The outlet or spout of the spout 7 is defined by the opposite extreme edge which is advantageously, but not necessarily, provided with a thin, open lip, 10 , the distance d between the throttle 6 and the lip 10 being able be arbitrary, or even limited to the direct connection of said lip with the constriction 6 .
Le ou les trous 9 ont un diamètre compris, de préférence, entre 0,5 et 1,5 mm et, en cas de pluralité, sont percés, de façon avantageuse, selon un ou plusieurs plans droits, transversaux à l'axe x-x' du bec 7. Dans un tel cas, une implantation des trous en alignement ou en quinconce d'un plan droit à un autre peut être indifféremment retenue. The hole (s) 9 have a diameter preferably between 0.5 and 1.5 mm and, in the event of plurality, are advantageously drilled along one or more straight planes transverse to the axis x-x ' spout 7 . In such a case, an implantation of the holes in alignment or staggered from one straight plane to another can be indifferently retained.
En raison de leur fonction d'annulation de la dépression, les trous 9 peuvent être qualifiés d'orifices de recompression ou plus exactement de rétablissement de pression équilibrée de part et d'autre de l'étranglement 6.By virtue of their function of canceling the depression, the holes 9 can be described as recompression or more precisely as balanced pressure restoration orifices on either side of the throttle 6 .
Le diamètre ⊘ de ces trous 9 doit être suffisant pour éviter qu'un ménisque de
liquide ne vienne le boucher. On doit satisfaire à la relation suivante qui exprime le
fait que la pression d'éclatement du ménisque est inférieure à la dépression du
phénomène de VENTURI. On doit donc respecter la relation
Afin de parfaire l'action régulatrice des orifices de rétablissement de pression, un réducteur de débit peut être avantageusement intégré à l'intérieur du bec verseur.In order to perfect the regulatory action of the pressure recovery orifices, a flow restrictor can advantageously be integrated inside the spout.
La figure 5 montre un exemple de réalisation industrielle d'un élément ou dispositif verseur, de préférence mais non exclusivement du type étirable, adaptable sur un récipient, non représenté, mettant en oeuvre une pression interne relative d'extraction du fluide liquide qu'il contient.FIG. 5 shows an industrial embodiment of a pouring element or device, preferably but not exclusively of the stretchable type, adaptable to a container, not shown, using a relative internal pressure for extracting the liquid fluid which it contains.
Un tel élément ou dispositif désigné par la référence générale 20, comprend une base 21 d'adaptation sur un récipient. La base 21 est prolongée par un soufflet d'étirement 22, lui-même prolongé par un col 23, de préférence fileté extérieurement, pour permettre l'adaptation d'un bouchon de fermeture vissé 24. En raison de son raccordement au soufflet, le col 23 constitue par lui-même l'étranglement 6 dont il a été question précédemment.Such an element or device designated by the general reference 20 , comprises a base 21 for adaptation on a container. The base 21 is extended by a stretching bellows 22 , itself extended by a neck 23 , preferably externally threaded, to allow the adaptation of a screwed closure cap 24 . Because of its connection to the bellows, the neck 23 constitutes by itself the constriction 6 which has been discussed previously.
Le col 23 comporte en bout la lèvre 10 apte à coopérer avec la face interne du bouchon 24.The neck 23 has, at the end, the lip 10 capable of cooperating with the internal face of the plug 24 .
Dans cet exemple de réalisation, deux trous 9 diamétralement opposés, sont prévus dans la partie de raccordement entre la lèvre 10 et l'étranglement que constitue le col 23.In this exemplary embodiment, two diametrically opposite holes 9 are provided in the connection part between the lip 10 and the constriction formed by the neck 23 .
Claims (7)
- Drip-preventing pouring device for containers from which the liquid product they contain is extracted by relative internal pressure, of the type comprising a pouring spout (20) of tubular overall shape having an outlet orifice bordered by a flared-out lip (10) and starting from a restriction (23) that connects the said pouring spout to the container, characterized in that at least one emerging hole (9) is made in the wall of the pouring spout in a region thereof which is as close as possible to the restriction.
- Pouring device according to Claim 1, characterized in that emerging holes are made in at least one and the same straight plane which is transverse to the axis (x-x') of the pouring spout.
- Pouring device according to Claim 1 or 2, characterized in that the emerging holes are made along the entire useful length of the pouring spout.
- Pouring device according to one of Claims 1 to 3, characterized in that each hole has a diameter of between 0.5 and 1.5 mm.
- Pouring device according to one of Claims 1 to 4, characterized in that the emerging holes (9) are made in lines along several successive transverse straight planes.
- Pouring device according to one of Claims 1 to 4, characterized in that the configuration of the emerging holes (9) of two successive transverse straight planes is a staggered configuration.
- Pouring device according to one of Claims 1 to 6, characterized in that it comprises:a base (21) for connecting it to a container,a neck (23) extending the base and defining a restriction 6,a lip (10) directly extending the neck (23)and at least one emerging hole (9) situated in the part where the neck meets the lip.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9408876 | 1994-07-12 | ||
| FR9408876A FR2722481B1 (en) | 1994-07-12 | 1994-07-12 | ANTI-DRIP POURING DEVICE. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0693435A1 EP0693435A1 (en) | 1996-01-24 |
| EP0693435B1 true EP0693435B1 (en) | 1998-04-15 |
Family
ID=9465494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP95420194A Expired - Lifetime EP0693435B1 (en) | 1994-07-12 | 1995-07-12 | Drip preventing spout |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP0693435B1 (en) |
| CN (1) | CN1121028A (en) |
| AT (1) | ATE165065T1 (en) |
| BR (1) | BR9503264A (en) |
| DE (1) | DE69502058T2 (en) |
| ES (1) | ES2114286T3 (en) |
| FR (1) | FR2722481B1 (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE605555C (en) * | 1936-01-03 | Ernst Carl Baehni | Drop preventive pourer for bottles | |
| US1878996A (en) * | 1931-01-19 | 1932-09-27 | Firm Porzellanfabrik Weiden Ge | Dripless spout for pouring vessels of ceramic material |
| FR1000051A (en) * | 1949-10-11 | 1952-02-07 | Pouring tube adaptable to mouths of containers of different dimensions | |
| FR1027269A (en) * | 1950-11-07 | 1953-05-11 | Device for pouring liquids without drooling | |
| IT8322185V0 (en) * | 1983-06-22 | 1983-06-22 | Victor Wassilieff | CLOSING DEVICE FOR FLUID CONTAINERS. |
| EP0386290A1 (en) * | 1989-03-08 | 1990-09-12 | Hsien-Chang Lin | Overflow-preventive bottle stopper |
-
1994
- 1994-07-12 FR FR9408876A patent/FR2722481B1/en not_active Expired - Fee Related
-
1995
- 1995-07-10 BR BR9503264A patent/BR9503264A/en not_active Application Discontinuation
- 1995-07-11 CN CN95109147.6A patent/CN1121028A/en active Pending
- 1995-07-12 ES ES95420194T patent/ES2114286T3/en not_active Expired - Lifetime
- 1995-07-12 AT AT95420194T patent/ATE165065T1/en not_active IP Right Cessation
- 1995-07-12 EP EP95420194A patent/EP0693435B1/en not_active Expired - Lifetime
- 1995-07-12 DE DE69502058T patent/DE69502058T2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| DE69502058T2 (en) | 1998-08-06 |
| FR2722481B1 (en) | 1996-10-11 |
| CN1121028A (en) | 1996-04-24 |
| EP0693435A1 (en) | 1996-01-24 |
| FR2722481A1 (en) | 1996-01-19 |
| ES2114286T3 (en) | 1998-05-16 |
| ATE165065T1 (en) | 1998-05-15 |
| DE69502058D1 (en) | 1998-05-20 |
| BR9503264A (en) | 1996-07-09 |
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