EP0874761B1 - Nozzle for dispensing a liquid or pasty material - Google Patents

Nozzle for dispensing a liquid or pasty material Download PDF

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Publication number
EP0874761B1
EP0874761B1 EP97900238A EP97900238A EP0874761B1 EP 0874761 B1 EP0874761 B1 EP 0874761B1 EP 97900238 A EP97900238 A EP 97900238A EP 97900238 A EP97900238 A EP 97900238A EP 0874761 B1 EP0874761 B1 EP 0874761B1
Authority
EP
European Patent Office
Prior art keywords
nozzle according
thimble
rod
plug
nozzle
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
EP97900238A
Other languages
German (de)
French (fr)
Other versions
EP0874761A1 (en
Inventor
Jean-Louis Bougamont
Pascal Hennemann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Silgan Dispensing Systems Le Treport SAS
Original Assignee
S O F A B SA
Sofab SA
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 S O F A B SA, Sofab SA filed Critical S O F A B SA
Publication of EP0874761A1 publication Critical patent/EP0874761A1/en
Application granted granted Critical
Publication of EP0874761B1 publication Critical patent/EP0874761B1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/0005—Components or details
    • B05B11/0062—Outlet valves actuated by the pressure of the fluid to be sprayed
    • B05B11/0064—Lift valves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/04—Deformable containers producing the flow, e.g. squeeze bottles
    • B05B11/047—Deformable containers producing the flow, e.g. squeeze bottles characterised by the outlet or venting means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/04—Deformable containers producing the flow, e.g. squeeze bottles
    • B05B11/048—Deformable containers producing the flow, e.g. squeeze bottles characterised by the container, e.g. this latter being surrounded by an enclosure, or the means for deforming it
    • 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
    • B65D47/20—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge
    • B65D47/2018—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge comprising a valve or like element which is opened or closed by deformation of the container or closure
    • B65D47/2056—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge comprising a valve or like element which is opened or closed by deformation of the container or closure lift valve type
    • B65D47/2062—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge comprising a valve or like element which is opened or closed by deformation of the container or closure lift valve type in which the deformation raises or lowers the valve stem
    • B65D47/2075—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge comprising a valve or like element which is opened or closed by deformation of the container or closure lift valve type in which the deformation raises or lowers the valve stem in which the stem is raised by the pressure of the contents and thereby opening the valve
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/02—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape
    • B05B1/06—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape in annular, tubular or hollow conical form

Definitions

  • the present invention relates to a product distribution nozzle liquids or pasty.
  • the exhaust valve is located inside the pump mechanism ensuring the evacuation of the product.
  • This pump is actuated by a pusher forming the nozzle-diffuser.
  • the nozzle being mounted downstream of the exhaust valve, it there remains a volume of product exposed to the air between said valve and the orifice tip ejection.
  • this volume of product which is not protected from the atmosphere exterior can be contaminated with bacterial pollution or dry and thus obstruct the ejection duct.
  • the present invention aims to solve this technical problem satisfactorily by improving the sealing of the endpiece in order to use it for sterile products.
  • said lip is integral of the rod and its free end is, in the closed position of the valve, in bearing contact against the internal wall of the socket.
  • said lip is carried by a crown coaxial with the stem.
  • said transverse wall is made in one piece with said crown.
  • the upstream end of the lip is integral with the rod.
  • said transverse wall is elastically deformable and is retained by its peripheral edge at the connection end of the socket thereby forming a means of elastic shutter return.
  • said rod is axial and defines, with the transverse wall, a peripheral shoulder.
  • said elastic return means include a coil spring surrounding the shutter rod in bearing, by its rear end, on the shoulder and by its front end, on the inner wall of the socket.
  • the end front of the spring is supported on longitudinal ribs extending the along the inner wall of the socket.
  • the front end of the spring is supported in the bottom of an annular groove, formed on the internal wall of the sleeve and delimited on its internal edge by a collar of rod guide.
  • the stopper consists of a part, of a body whose lateral face, in the closed position, is in support tight against the inner edge of the ejection orifice, and on the other hand, head protruding outside the socket.
  • the ejection orifice has a profile frustoconical corresponding to that of the cap body. If applicable, the inner edge of the ejection orifice is provided with an annular ring on which the lateral face of the cap body comes into watertight support during its closing.
  • the socket has a profile in ogive and the head of the cap has a curvilinear profile whose curvature is determined so as to ensure continuity of appearance of the warped profile.
  • connection end of the socket has ribs on the inner wall forming a stop for the transverse wall.
  • said rod is made secured to the transverse wall by being engaged in a sleeve squeezing carrying said wall.
  • the endpiece further comprises a removable cover intended to cover the socket and the top of which abuts by its face internal against the cap to guarantee the tightness of the closure.
  • transverse wall is extends towards the reservoir by a lug engaged in a sleeve making protruding inside said tank.
  • the nozzle of the invention has a combination of two valves allowing control of the seal, which preserves the entirety of the contents of the tank from any contact with the outside atmosphere and spreads thus the risks of degradation or bacterial contamination of the product.
  • This nozzle can be easily mounted on the tank by inside or outside, directly or indirectly through a fitting.
  • the product in the upstream compartment of the nozzle is protected in the same way and with the same efficiency as if he were in the tank.
  • the two valves which are mounted on the same part work in the same direction but with displacements oriented along axes separate.
  • the structure of the nozzle prevents any exit and any leak accidental product to the outside.
  • the hood covering the socket and pressing the shutter cap keeps it in position watertight closure against the valve seat. This provision guarantees tightness of the nozzle even if pressure is generated so accidental within the product in the tank.
  • the tip E shown in Figure 1 is intended to be mounted on a tank R which is here formed of a flexible pocket filled with liquid product or pasty P and which is hermetically attached to a fitting D.
  • the bag R can be pressurized either by action manual direct, either by means of T pallets sliding mounted on a upright M secured to fitting D. In this way, the pocket R is held inside a rigid structure.
  • the end piece E comprises a socket 1 provided with a part of an end 11 for connection to the connection D of the bag R, via a ring B, and on the other hand an ejection orifice 10.
  • the end piece E further comprises a movable shutter 2, housed at the inside of the socket 1, providing a passage for the product P, from connection D to the ejection orifice 10.
  • the shutter 2 consists of a rod 21 carrying at its end external a plug 20 forming with the ejection orifice 10, a valve exhaust.
  • the internal end of the rod 21 is provided with a transverse wall rigid 22 cooperating with return means of the shutter.
  • the wall 22 is made integral with the rod 21 by being either made in one piece with it, either, as shown in Figures 1 and 2, being worn by a tightening sleeve 24 produced in the form of a separate part, in which is engaged the internal end of the rod 21.
  • the rod 21 is axial and defines with, the wall 22, a peripheral shoulder 22a which extends radially towards the internal wall of the sleeve 1 by a lip elastically deformable device 23 forming an intake valve.
  • the lip 23 is made in one piece with the wall 22 and the sleeve 24 forming a crown. In the closed position of the valve, the lip 23 divides thus sealingly, the passage for the product in a compartment upstream located on the side of the end 11 of the socket 1 capable of communicate with the tank R and a downstream compartment likely to communicate with the outside, through port 10.
  • the lip 23 thus forms a coaxial crown integral with the rod 21 by its upstream end while its free downstream end is, in the closed position shown in Figure 1, in support contact against the inner wall of the socket 1.
  • the shutter 2 is, here, equipped with return means formed by a spring.
  • the return spring 3 coaxially surrounds the rod 21 and is supported by its rear end turn on the shoulder 22a, thus recalling, the movable shutter 2 in its closed position.
  • the end turn before the spring 3 is supported on longitudinal ribs 12, extending on the internal wall of the sleeve 1 in the vicinity of the orifice 10 with a length determined according to the characteristics of the spring.
  • the plug 20 consists of a body 20a, the lateral face of which is, in the closed position, sealingly against the inner edge 10a of the ejection orifice 10 thus forming the seat of the exhaust valve. The tight support contact is thus made between two conical surfaces.
  • annular ring produced on the inner edge 10a of the ejection orifice 10. Contact is then ensured between the lateral face of the body 20a of the plug. 20 and this rod, and is thus reduced to a circular line, which strengthens the support waterproof.
  • the body 20a is extended by a head 20b which projects towards the front outside of the socket 1.
  • the ejection orifice 10 has a frustoconical profile corresponding to that of the body 20a of the plug 20.
  • the socket 1 has an ogive profile, while the head 20b of the plug 20 has a curvilinear profile whose curvature is determined so as to ensure continuity of appearance of the warped profile.
  • the ejection mechanism can be adjusted by providing, for example, the spring 3 is still slightly compressed in the closed position shutter so as to strengthen the seal.
  • connection end 11 of the socket 1 or the connector D has on its internal wall ribs 11a forming rear stops for the wall 22 when returning from the shutter in the closed position.
  • the ribs 11a are formed for the edges of fitting D.
  • the nozzle is provided with a removable cover 4 intended to cap socket 1.
  • the top of the cover 4 has a hollow part 40 where the wall is thinned and which comes to rest, or its internal face, against the head 20b of the cap 20 to guarantee the tightness of the closure.
  • the cover 4 is, for example, screwed, on the outside, onto the end 11 of connection of socket 1, or on an outer ring or, as shown in Figure 3, directly on the wall of the rigid tank R.
  • the wall of the reservoir R is provided with ribs N forming nets which cooperate with corresponding ribs 41, formed on the internal wall of the cover 4, to ensure the screwing.
  • the position and geometry of the ribs 41 and N are determined, so as to ensure the support of the hollow part 40 on the plug 20 at the end of screwing.
  • the hood is, if necessary, provided with an internal stiffening element 42 (see FIGS. 5a, 5b) bearing on the upper part of the container R.
  • the wall 22, carrying the peripheral lip 23 of the intake valve extends towards the reservoir R by a lug 25, which is engaged in a sleeve 5, itself housed in the connection D and protruding inside the tank R.
  • the sleeve 5 is, where appropriate, integral with the internal wall of the connection end 11 of the socket 1 or of the connection D (see Figures 5a, 5b).
  • the connection end 11 is here screwed onto the fitting D and has a peripheral flange 11a.
  • the sleeve 5 has a shoulder 50 disposed opposite the rear face 24 of wall 22.
  • the front end of the spring 3 takes support in the bottom of an annular groove 13, formed on the internal wall from the top of the sleeve 1.
  • the groove 13 is delimited on its internal edge by a collar 14 guiding the rod 21 during its movement axial.
  • the free internal edge 14a of the collar 14 can also serve as a stop for the sleeve 24, during its axial displacement with the rod 21.
  • the lip 23 is very long (as in the embodiment of the Figures 5a, 5b) its free end can engage, at least partially in the groove 13 when the shutter 2 is in the open position.
  • This space is narrow but it is adapted to the viscosity of the product P of so as to slow its flow from the tank R to the volume inside of socket 1
  • the transverse wall 22 is elastically deformable and is retained at the connection end 11 of the socket 1, thus forming a means of elastic return of the shutter 2.
  • the wall 22 and the lip 23 are joined by a central collar 26 which is tightened on a throttle 21a of the rod 21.
  • the wall 22 is perforated so as to provide passages for the product P between the tank R and the upstream compartment of the socket.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Lubricants (AREA)
  • Coating Apparatus (AREA)
  • Catching Or Destruction (AREA)
  • Basic Packing Technique (AREA)

Abstract

PCT No. PCT/FR97/00021 Sec. 371 Date Jul. 8, 1998 Sec. 102(e) Date Jul. 8, 1998 PCT Filed Jan. 7, 1997 PCT Pub. No. WO97/25253 PCT Pub. Date Jul. 17, 1997A nozzle for dispensing a liquid or semi-liquid substance (P) and designed to be mounted on a tank (R) suitable for being put under pressure. The nozzle is of the type comprising a thimble (1) and moving shutter (2) housed inside the thimble. The thimble (1) is provided with a coupling end (11) for coupling to the tank (R) and an ejection orifice (10). The shutter (21) is constituted by a rod (21) carrying a plug (20) at an outer end thereof. The plug (20) cooperates with the ejection orifice (10) to form a delivery valve. The rod (21) also carries a transverse wall (22) at an inner end thereof. The wall (22) leaves a passage for the substance (P) and cooperates with a resilient return means (3) for returning the moving shutter (2) towards a closed position in which the plug (20) is engaged in sealed manner in the ejection orifice (10). The nozzle further comprises an admission valve constituted by a deformable peripheral lip (23) around the rod (21) which subdivides the passage for the substance (P) in sealed manner into an upstream compartment and a downstream compartment.

Description

La présente invention concerne un embout de distribution de produits liquides ou pâteux.The present invention relates to a product distribution nozzle liquids or pasty.

Il existe déjà des embouts de distribution destinés à être montés sur des réservoirs et susceptibles d'être mis sous pression.There are already distribution tips intended to be mounted on tanks and likely to be pressurized.

Généralement, le clapet d'échappement est situé à l'intérieur du mécanisme de la pompe assurant l'évacuation du produit. Cette pompe est actionnée par un poussoir formant l'embout-diffuseur.Generally, the exhaust valve is located inside the pump mechanism ensuring the evacuation of the product. This pump is actuated by a pusher forming the nozzle-diffuser.

Cependant, l'embout étant monté en aval du clapet d'échappement, il reste un volume de produit exposé à l'air entre ledit clapet et l'orifice d'éjection de l'embout.However, the nozzle being mounted downstream of the exhaust valve, it there remains a volume of product exposed to the air between said valve and the orifice tip ejection.

Dans certains domaines d'application et notamment en pharmacie et en cosmétique, ce volume de produit qui n'est pas protégé de l'atmosphère extérieure peut être contaminé par la pollution bactérienne ou bien sécher et obstruer ainsi le conduit d'éjection.In certain fields of application and in particular in pharmacy and in cosmetics, this volume of product which is not protected from the atmosphere exterior can be contaminated with bacterial pollution or dry and thus obstruct the ejection duct.

Dans ces conditions, le produit restant dans le réservoir devient inutilisable.Under these conditions, the product remaining in the tank becomes unusable.

Pour remédier à cette difficulté, le CH-A-178923 propose un embout comprenant

  • une douille pourvue, d'une part d'une extrémité de raccordement au réservoir et d'autre part, d'un orifice d'éjection,
  • un obturateur mobile logé à l'intérieur de ladite douille, constitué d'une tige portant, à son extrémité externe, un bouchon formant avec l'orifice d'éjection, un clapet d'échappement, et à son extrémité interne, une paroi transversale ménageant un passage pour le produit et coopérant avec des moyens de rappel élastique de l'obturateur mobile vers une position de fermeture où le bouchon est engagé de manière étanche dans l'orifice d'éjection.
To remedy this difficulty, the CH-A-178923 offers a tip comprising
  • a socket provided, on the one hand with an end for connection to the reservoir and on the other hand, with an ejection orifice,
  • a movable shutter housed inside said socket, consisting of a rod carrying, at its external end, a plug forming with the ejection orifice, an exhaust valve, and at its internal end, a transverse wall providing a passage for the product and cooperating with elastic return means of the movable shutter towards a closed position where the plug is sealingly engaged in the ejection orifice.

Toutefois, l'obturateur étant actionné manuellement, le différentiel de pression qui commande tant l'ouverture que la fermeture du clapet d'échappement, est faible (de l'ordre de 0,1 bar).However, the shutter being operated manually, the differential of pressure which controls both the opening and closing of the valve exhaust, is low (around 0.1 bar).

Il en résulte qu'après relâchement de l'obturateur et fermeture du clapet d'échappement, l'étanchéité n'est pas suffisamment forte pour que toute reprise d'air soit évitée.As a result, after releasing the shutter and closing the exhaust valve, the seal is not strong enough for any return of air is avoided.

Dans ces conditions, il subsiste un risque de pollution du produit. Under these conditions, there remains a risk of product pollution.

La présente invention a pour but de résoudre ce problème technique de manière satisfaisante en améliorant l'étanchéité de l'embout en vue de l'utiliser pour des produits stériles.The present invention aims to solve this technical problem satisfactorily by improving the sealing of the endpiece in order to use it for sterile products.

Ce but est atteint, selon l'invention, au moyen d'un embout destiné à être monté sur un réservoir, susceptible d'être mis sous pression du type comprenant

  • une douille pourvue, d'une part d'une extrémité de raccordement au réservoir et d'autre part, d'un orifice d'éjection,
  • un obturateur mobile logé à l'intérieur de ladite douille, constitué d'une tige portant, à son extrémité externe, un bouchon formant avec l'orifice d'éjection, un clapet d'échappement, et à son extrémité interne, une paroi transversale ménageant un passage pour le produit et coopérant avec des moyens de rappel élastique de l'obturateur mobile vers une position de fermeture où le bouchon est engagé de manière étanche dans l'orifice d'éjection, caractérisé en ce qu'il comprend en outre, un clapet d'admission constitué d'une lèvre périphérique déformable disposé dans le passage annulaire pour le produit autour de l'obturateur mobile et divisant de manière étanche l'espace à l'intérieur de la douille en un compartiment amont et un compartiment aval.
This object is achieved, according to the invention, by means of a nozzle intended to be mounted on a tank, capable of being pressurized of the type comprising
  • a socket provided, on the one hand with an end for connection to the reservoir and on the other hand, with an ejection orifice,
  • a movable shutter housed inside said socket, consisting of a rod carrying, at its external end, a plug forming with the ejection orifice, an exhaust valve, and at its internal end, a transverse wall providing a passage for the product and cooperating with elastic return means of the movable shutter towards a closed position where the plug is sealingly engaged in the ejection orifice, characterized in that it further comprises, an intake valve consisting of a deformable peripheral lip disposed in the annular passage for the product around the movable shutter and dividing the space inside the socket in a leaktight manner into an upstream compartment and a downstream compartment.

Selon un mode de réalisation avantageux, ladite lèvre est solidaire de la tige et son extrémité libre est, en position de fermeture du clapet, en contact d'appui contre la paroi interne de la douille.According to an advantageous embodiment, said lip is integral of the rod and its free end is, in the closed position of the valve, in bearing contact against the internal wall of the socket.

Selon un mode de réalisation particulier, ladite lèvre est portée par une couronne coaxiale à la tige.According to a particular embodiment, said lip is carried by a crown coaxial with the stem.

De préférence, ladite paroi transversale est réalisée d'une seule pièce avec ladite couronne.Preferably, said transverse wall is made in one piece with said crown.

Selon un autre mode de réalisation, l'extrémité amont de la lèvre est solidaire de la tige.According to another embodiment, the upstream end of the lip is integral with the rod.

Selon encore un autre mode de réalisation, ladite paroi transversale est élastiquement déformable et est retenue par son bord périphérique à l'extrémité de raccordement de la douille en formant ainsi un moyen de rappel élastique de l'obturateur.According to yet another embodiment, said transverse wall is elastically deformable and is retained by its peripheral edge at the connection end of the socket thereby forming a means of elastic shutter return.

Selon une caractéristique avantageuse, ladite tige est axiale et définit, avec la paroi transversale, un épaulement périphérique.According to an advantageous characteristic, said rod is axial and defines, with the transverse wall, a peripheral shoulder.

Selon une variante de réalisation, lesdits moyens de rappel élastique comprennent un ressort hélicoïdal entourant la tige de l'obturateur en prenant appui, par son extrémité arrière, sur l'épaulement et par son extrémité avant, sur la paroi interne de la douille.According to an alternative embodiment, said elastic return means include a coil spring surrounding the shutter rod in bearing, by its rear end, on the shoulder and by its front end, on the inner wall of the socket.

Selon une caractéristique particulière de cette variante, l'extrémité avant du ressort prend appui sur des nervures longitudinales s'étendant le long de la paroi interne de la douille.According to a particular characteristic of this variant, the end front of the spring is supported on longitudinal ribs extending the along the inner wall of the socket.

Selon une autre caractéristique de cette variante l'extrémité avant du ressort prend appui dans le fond d'une gorge annulaire, ménagée sur la paroi interne de la douille et délimitée sur son bord interne par un collet de guidage de la tige.According to another characteristic of this variant, the front end of the spring is supported in the bottom of an annular groove, formed on the internal wall of the sleeve and delimited on its internal edge by a collar of rod guide.

Selon un autre mode de réalisation, le bouchon est constitué, d'une part, d'un corps dont la face latérale, en position de fermeture, est en appui étanche contre le bord intérieur de l'orifice d'éjection, et d'autre part, d'une tête faisant saillie à l'extérieur de la douille.According to another embodiment, the stopper consists of a part, of a body whose lateral face, in the closed position, is in support tight against the inner edge of the ejection orifice, and on the other hand, head protruding outside the socket.

Selon une variante spécifique, l'orifice d'éjection a un profil tronconique correspondant à celui du corps du bouchon. Le cas échéant, le bord intérieur de l'orifice d'éjection est pourvu d'un jonc annulaire sur lequel la face latérale du corps du bouchon vient en appui étanche lors de sa fermeture.According to a specific variant, the ejection orifice has a profile frustoconical corresponding to that of the cap body. If applicable, the inner edge of the ejection orifice is provided with an annular ring on which the lateral face of the cap body comes into watertight support during its closing.

Selon encore un autre mode de réalisation, la douille a un profil en ogive et la tête du bouchon a un profil curviligne dont la courbure est déterminée de façon à assurer une continuité d'aspect du profil en ogive.According to yet another embodiment, the socket has a profile in ogive and the head of the cap has a curvilinear profile whose curvature is determined so as to ensure continuity of appearance of the warped profile.

Selon encore d'autres caractéristiques, l'extrémité de raccordement de la douille comporte sur la paroi interne des nervures formant butée pour la paroi transversale.According to still other characteristics, the connection end of the socket has ribs on the inner wall forming a stop for the transverse wall.

Selon encore une autre caractéristique, ladite tige est rendue solidaire de la paroi transversale en étant engagée dans un manchon serrant portant ladite paroi.According to yet another characteristic, said rod is made secured to the transverse wall by being engaged in a sleeve squeezing carrying said wall.

De préférence, l'embout comprend en outre, un capot amovible destiné à coiffer la douille et dont le sommet vient en appui par sa face interne contre le bouchon pour garantir l'étanchéité de la fermeture.Preferably, the endpiece further comprises a removable cover intended to cover the socket and the top of which abuts by its face internal against the cap to guarantee the tightness of the closure.

Il est aussi possible de prévoir que ladite paroi transversale se prolonge vers le réservoir par un ergot engagé dans un manchon faisant saillie à l'intérieur dudit réservoir.It is also possible to provide that said transverse wall is extends towards the reservoir by a lug engaged in a sleeve making protruding inside said tank.

L'embout de l'invention possède une combinaison de deux clapets permettant la maítrise de l'étanchéité, ce qui préserve l'intégralité du contenu du réservoir de tout contact avec l'atmosphère extérieure et écarte ainsi les risques de dégradation ou de contamination bactérienne du produit. Cet embout peut être monté de façon simple sur le réservoir par l'intérieur ou par l'extérieur, directement ou indirectement par l'intermédiaire d'un raccord.The nozzle of the invention has a combination of two valves allowing control of the seal, which preserves the entirety of the contents of the tank from any contact with the outside atmosphere and spreads thus the risks of degradation or bacterial contamination of the product. This nozzle can be easily mounted on the tank by inside or outside, directly or indirectly through a fitting.

Le produit qui se trouve dans le compartiment amont de l'embout est protégé de la même façon et avec la même éfficacité que s'il était dans le réservoir.The product in the upstream compartment of the nozzle is protected in the same way and with the same efficiency as if he were in the tank.

Les deux clapets qui sont montés sur la même pièce fonctionnent dans le même sens mais avec des déplacements orientés selon des axes distincts.The two valves which are mounted on the same part work in the same direction but with displacements oriented along axes separate.

La génération d'une pression, au-delà d'un certain seuil, au sein du produit, et à l'intérieur du réservoir, provoque le déplacement de l'obturateur et l'éjection du produit. En deçà de ce seuil, l'obturateur est en position de fermeture étanche sur l'embout par action des moyens de rappel.The generation of pressure, beyond a certain threshold, within the product, and inside the tank, causes the shutter to move and ejecting the product. Below this threshold, the shutter is in the position of tight closure on the nozzle by action of the return means.

En outre, la structure de l'embout interdit toute sortie et toute fuite accidentelle du produit vers l'extérieur. Le capot coiffant la douille et appuyant sur le bouchon de l'obturateur maintient celui-ci en position de fermeture étanche contre le siège du clapet. Cette disposition garantit l'étanchéité de l'embout même si une pression est générée de manière accidentelle au sein du produit dans le réservoir.In addition, the structure of the nozzle prevents any exit and any leak accidental product to the outside. The hood covering the socket and pressing the shutter cap keeps it in position watertight closure against the valve seat. This provision guarantees tightness of the nozzle even if pressure is generated so accidental within the product in the tank.

L'invention sera mieux comprise à la lecture de la description qui va suivre accompagnée des dessins sur lesquels :

  • la figure 1 est une vue en coupe longitudinale d'un premier mode de réalisation de l'embout de l'invention, en position de fermeture et monté sur un réservoir,
  • la figure 2 est une vue en coupe longitudinale de l'embout de la figure 1, en position d'ouverture,
  • la figure 3 est une vue en coupe du capot coiffant la douille représentée, quant à elle, en vue extérieure, et en position de fermeture,
  • la figure 4 est une vue en coupe d'un second mode de réalisation de l'embout,
  • les figures 5a et 5b représentent des vues en coupe d'un troisième mode de réalisation de l'embout de l'invention respectivement en position de fermeture et d'ouverture.
The invention will be better understood on reading the description which follows, accompanied by the drawings in which:
  • FIG. 1 is a view in longitudinal section of a first embodiment of the end piece of the invention, in the closed position and mounted on a reservoir,
  • FIG. 2 is a view in longitudinal section of the nozzle of FIG. 1, in the open position,
  • FIG. 3 is a sectional view of the cover covering the socket shown, for its part, in external view, and in the closed position,
  • FIG. 4 is a sectional view of a second embodiment of the end piece,
  • Figures 5a and 5b show sectional views of a third embodiment of the tip of the invention respectively in the closed and open position.

L'embout E représenté sur la figure 1 est destiné à être monté sur un réservoir R qui est ici formé d'une poche souple remplie de produit liquide ou pâteux P et qui est fixée hermétiquement à un raccord D.The tip E shown in Figure 1 is intended to be mounted on a tank R which is here formed of a flexible pocket filled with liquid product or pasty P and which is hermetically attached to a fitting D.

La poche R est susceptible d'être mise sous pression soit par action manuelle directe, soit par le biais de palettes T montées coulissantes sur un montant M solidaire au raccord D. De cette façon, la poche R est maintenue à l'intérieur d'une structure rigide.The bag R can be pressurized either by action manual direct, either by means of T pallets sliding mounted on a upright M secured to fitting D. In this way, the pocket R is held inside a rigid structure.

Selon l'invention, l'embout E comporte une douille 1 pourvue, d'une part d'une extrémité 11 de raccordement au raccord D de la poche R, via une bague B, et d'autre part d'un orifice d'éjection 10.According to the invention, the end piece E comprises a socket 1 provided with a part of an end 11 for connection to the connection D of the bag R, via a ring B, and on the other hand an ejection orifice 10.

L'embout E comporte en outre, un obturateur mobile 2, logé à l'intérieur de la douille 1 en ménageant un passage pour le produit P, depuis le raccord D jusqu'à l'orifice d'éjection 10.The end piece E further comprises a movable shutter 2, housed at the inside of the socket 1, providing a passage for the product P, from connection D to the ejection orifice 10.

L'obturateur 2 est constitué d'une tige 21 portant à son extrémité externe un bouchon 20 formant avec l'orifice d'éjection 10, un clapet d'échappement.The shutter 2 consists of a rod 21 carrying at its end external a plug 20 forming with the ejection orifice 10, a valve exhaust.

L'extrémité interne de la tige 21 est pourvue d'une paroi transversale rigide 22 coopérant avec des moyens de rappel de l'obturateur. La paroi 22 est rendue solidaire de la tige 21 en étant, soit réalisée d'une seule pièce avec celle-ci, soit, comme représenté sur les figures 1 et 2, en étant portée par un manchon serrant 24 réalisé sous forme d'une pièce séparée, dans lequel est engagée l'extrémité interne de la tige 21.The internal end of the rod 21 is provided with a transverse wall rigid 22 cooperating with return means of the shutter. The wall 22 is made integral with the rod 21 by being either made in one piece with it, either, as shown in Figures 1 and 2, being worn by a tightening sleeve 24 produced in the form of a separate part, in which is engaged the internal end of the rod 21.

Dans le mode de réalisation représenté, la tige 21 est axiale et définit avec, la paroi 22, un épaulement périphérique 22a qui se prolonge radialement en direction de la paroi interne de la douille 1 par une lèvre périphérique 23 élastiquement déformable formant clapet d'admission. La lèvre 23 est réalisée d'une seule pièce avec la paroi 22 et le manchon 24 en formant une couronne. En position de fermeture du clapet, la lèvre 23 divise ainsi de manière étanche, le passage pour le produit en un compartiment amont situé du côté de l'extrémité 11 de la douille 1 susceptible de communiquer avec le réservoir R et un compartiment aval susceptible de communiquer avec l'extérieur, par l'orifice 10.In the embodiment shown, the rod 21 is axial and defines with, the wall 22, a peripheral shoulder 22a which extends radially towards the internal wall of the sleeve 1 by a lip elastically deformable device 23 forming an intake valve. The lip 23 is made in one piece with the wall 22 and the sleeve 24 forming a crown. In the closed position of the valve, the lip 23 divides thus sealingly, the passage for the product in a compartment upstream located on the side of the end 11 of the socket 1 capable of communicate with the tank R and a downstream compartment likely to communicate with the outside, through port 10.

La lèvre 23 forme ainsi une couronne coaxiale solidaire de la tige 21 par son extrémité amont tandis que son extrémité libre aval est, dans la position de fermeture représentée figure 1, en contact d'appui contre la paroi interne de la douille 1. The lip 23 thus forms a coaxial crown integral with the rod 21 by its upstream end while its free downstream end is, in the closed position shown in Figure 1, in support contact against the inner wall of the socket 1.

L'obturateur 2 est, ici, équipé de moyens de rappel formés d'un ressort.The shutter 2 is, here, equipped with return means formed by a spring.

Le ressort de rappel 3 entoure coaxialement la tige 21 et prend appui par sa spire d'extrémité arrière sur l'épaulement 22a, en rappelant, ainsi, l'obturateur mobile 2 dans sa position de fermeture. La spire d'extrémité avant du ressort 3 prend appui sur des nervures longitudinales 12, s'étendant sur la paroi interne de la douille 1 au voisinage de l'orifice 10 avec une longueur déterminée en fonction des caractéristiques du ressort. Le bouchon 20 est constitué d'un corps 20a dont la face latérale est, en position de fermeture, en appui étanche contre le bord intérieur 10a de l'orifice d'éjection 10 formant ainsi le siège du clapet d'échappement. Le contact d'appui étanche est ainsi réalisé entre deux surfaces coniques. Il est possible de prévoir, dans un autre mode de réalisation (non représenté) un jonc annulaire, réalisé sur le bord intérieur 10a de l'orifice d'éjection 10. Le contact est alors assuré entre la face latérale du corps 20a du bouchon 20 et ce jonc, et se réduit ainsi à une ligne circulaire, ce qui renforce l'appui étanche. Le corps 20a se prolonge par une tête 20b qui fait saillie vers l'avant à l'extérieur de la douille 1.The return spring 3 coaxially surrounds the rod 21 and is supported by its rear end turn on the shoulder 22a, thus recalling, the movable shutter 2 in its closed position. The end turn before the spring 3 is supported on longitudinal ribs 12, extending on the internal wall of the sleeve 1 in the vicinity of the orifice 10 with a length determined according to the characteristics of the spring. The plug 20 consists of a body 20a, the lateral face of which is, in the closed position, sealingly against the inner edge 10a of the ejection orifice 10 thus forming the seat of the exhaust valve. The tight support contact is thus made between two conical surfaces. he is possible to provide, in another embodiment (not shown) an annular ring, produced on the inner edge 10a of the ejection orifice 10. Contact is then ensured between the lateral face of the body 20a of the plug. 20 and this rod, and is thus reduced to a circular line, which strengthens the support waterproof. The body 20a is extended by a head 20b which projects towards the front outside of the socket 1.

De préférence, l'orifice d'éjection 10 a un profil tronconique correspondant à celui du corps 20a du bouchon 20.Preferably, the ejection orifice 10 has a frustoconical profile corresponding to that of the body 20a of the plug 20.

La douille 1 a un profil en ogive, tandis que la tête 20b du bouchon 20 possède un profil curviligne dont la courbure est déterminée de façon à assurer une continuité d'aspect du profil en ogive.The socket 1 has an ogive profile, while the head 20b of the plug 20 has a curvilinear profile whose curvature is determined so as to ensure continuity of appearance of the warped profile.

Lorsque la pression du produit P s'exerce sur la face latérale du corps 20a du bouchon 20, l'obturateur 2 se déplace vers l'avant à partir de sa position arrière de fermeture où le bouchon 20 est engagé et retenu de manière étanche dans l'orifice d'éjection 10.When the pressure of the product P is exerted on the lateral face of the body 20a of the plug 20, the shutter 2 moves forward from its rear closed position where the plug 20 is engaged and retained from tightly in the ejection port 10.

Ce déplacement ne peut s'effectuer qu'à la condition que la pression exercée dépasse un seuil déterminé par le tarage du ressort hélicoïdal 3 qui se comprime sous l'effet de la poussée. Le produit P déforme alors élastiquement la lèvre 23 et pénètre en contournant latéralement la paroi 22 dans le compartiment aval. Puis à l'intérieur du compartiment aval, le produit P se dirige au travers des spires du ressort 3, dans l'espace compris entre la paroi interne de la douille 1 d'une part et le manchon 24 et/ou la tige 21 de l'obturateur 2 d'autre part, vers l'orifice d'éjection 10 en poussant et en contournant le corps 20a du bouchon 20 avant de s'échapper à l'extérieur.This movement can only take place on condition that the pressure exerted exceeds a threshold determined by the calibration of the coil spring 3 which compresses under the effect of the push. The product P then deforms elastically the lip 23 and penetrates by laterally bypassing the wall 22 in the downstream compartment. Then inside the downstream compartment, the product P is directed through the turns of spring 3, in the space included between the internal wall of the sleeve 1 on the one hand and the sleeve 24 and / or the rod 21 from the shutter 2 on the other hand, towards the ejection orifice 10 by pushing and bypassing the body 20a of the plug 20 before escaping outside.

On peut régler le mécanisme d'éjection en prévoyant, par exemple, que le ressort 3 soit encore légèrement comprimé en position de fermeture de l'obturateur de façon à renforcer l'étanchéité.The ejection mechanism can be adjusted by providing, for example, the spring 3 is still slightly compressed in the closed position shutter so as to strengthen the seal.

Dans ce cas, c'est l'appui forcé de la face latérale du corps 20a du bouchon 20 contre le bord intérieur 10a de l'orifice d'éjection 10 qui retient l'obturateur vers l'avant en position de fermeture.In this case, it is the forced support of the lateral face of the body 20a of the plug 20 against the inner edge 10a of the ejection orifice 10 which retains the shutter forward in the closed position.

Selon une variante, on peut prévoir que l'extrémité de raccordement 11 de la douille 1 ou le raccord D, comporte sur sa paroi interne des nervures 11a formant des butées arrières pour la paroi 22 lors du retour de l'obturateur en position de fermeture.Alternatively, provision may be made for the connection end 11 of the socket 1 or the connector D, has on its internal wall ribs 11a forming rear stops for the wall 22 when returning from the shutter in the closed position.

Dans la variante représentée, les nervures 11a sont formées pu les bords du raccord D.In the variant shown, the ribs 11a are formed for the edges of fitting D.

Sur la figure 3, l'embout est pourvu d'un capot amovible 4 destiné à coiffer la douille 1.In FIG. 3, the nozzle is provided with a removable cover 4 intended to cap socket 1.

Le sommet du capot 4 comporte une partie en creux 40 où la paroi est amincie et qui vient en appui, pu sa face interne, contre la tête 20b du bouchon 20 pour garantir l'étanchéité de la fermeture.The top of the cover 4 has a hollow part 40 where the wall is thinned and which comes to rest, or its internal face, against the head 20b of the cap 20 to guarantee the tightness of the closure.

Le capot 4 est, par exemple, vissé, à l'extérieur, sur l'extrémité 11 de raccordement de la douille 1, ou sur une bague extérieure ou, comme représenté sur la figure 3, directement sur la paroi du réservoir rigide R.The cover 4 is, for example, screwed, on the outside, onto the end 11 of connection of socket 1, or on an outer ring or, as shown in Figure 3, directly on the wall of the rigid tank R.

A cet effet, la paroi du réservoir R est pourvue de nervures N formant des filets qui coopèrent avec des nervures 41 correspondantes, ménagées sur la paroi interne du capot 4, pour assurer le vissage.For this purpose, the wall of the reservoir R is provided with ribs N forming nets which cooperate with corresponding ribs 41, formed on the internal wall of the cover 4, to ensure the screwing.

La position et la géométrie des nervures 41 et N sont déterminées, de façon à assurer l'appui de la partie en creux 40 sur le bouchon 20 en fin de vissage.The position and geometry of the ribs 41 and N are determined, so as to ensure the support of the hollow part 40 on the plug 20 at the end of screwing.

Le capot est, le cas échéant, pourvu d'un élément raidisseur interne 42 (voir figures 5a, 5b) prenant appui sur la partie supérieure du récipient R.The hood is, if necessary, provided with an internal stiffening element 42 (see FIGS. 5a, 5b) bearing on the upper part of the container R.

Dans le mode de réalisation de la figure 4, la paroi 22, portant la lèvre périphérique 23 du clapet d'admission, se prolonge vers le réservoir R par un ergot 25, qui est engagé dans un manchon 5, lui-même logé dans le raccord D et faisant saillie à l'intérieur du reservoir R.In the embodiment of Figure 4, the wall 22, carrying the peripheral lip 23 of the intake valve, extends towards the reservoir R by a lug 25, which is engaged in a sleeve 5, itself housed in the connection D and protruding inside the tank R.

Le manchon 5 est, le cas échéant, solidaire de la paroi interne de l'extrémité de raccordement 11 de la douille 1 ou du raccord D (voir figures 5a, 5b). L'extrémité de raccordement 11 est, ici, vissée sur le raccord D et possède une collerette périphérique 11a.The sleeve 5 is, where appropriate, integral with the internal wall of the connection end 11 of the socket 1 or of the connection D (see Figures 5a, 5b). The connection end 11 is here screwed onto the fitting D and has a peripheral flange 11a.

Le manchon 5 comporte un épaulement 50 disposé en regard de la face arrière 24 de la paroi 22.The sleeve 5 has a shoulder 50 disposed opposite the rear face 24 of wall 22.

Dans ce mode de réalisation, l'extrémité avant du ressort 3 prend appui dans le fond d'une gorge annulaire 13, ménagée sur la paroi interne du sommet de la douille 1. La gorge 13 est délimitée sur son bord interne par un collet 14 assurant le guidage de la tige 21, lors de son mouvement axial. Le bord interne libre 14a du collet 14 peut aussi servir de butée pour le manchon 24, lors de son déplacement axial avec la tige 21. Dans le cas où la lèvre 23 est très longue (comme dans le mode de réalisation des figures 5a, 5b) son extrémité libre peut s'engager, au moins partiellement dans la gorge 13 lorsque l'obturateur 2 est en position ouverte.In this embodiment, the front end of the spring 3 takes support in the bottom of an annular groove 13, formed on the internal wall from the top of the sleeve 1. The groove 13 is delimited on its internal edge by a collar 14 guiding the rod 21 during its movement axial. The free internal edge 14a of the collar 14 can also serve as a stop for the sleeve 24, during its axial displacement with the rod 21. In the case where the lip 23 is very long (as in the embodiment of the Figures 5a, 5b) its free end can engage, at least partially in the groove 13 when the shutter 2 is in the open position.

Lorsque la pression augmente dans le réservoir R, le produit P passe par l'espace libre annulaire délimité par le manchon 5, d'une part, et l'ergot 25, d'autre part, pour atteindre le compartiment amont de la douille 1.When the pressure increases in the tank R, the product P passes by the annular free space delimited by the sleeve 5, on the one hand, and the lug 25, on the other hand, to reach the upstream compartment of the socket 1.

Cet espace est étroit mais il est adapté à la viscosité du produit P de façon à freiner son écoulement depuis le réservoir R vers le volume intérieur de la douille 1This space is narrow but it is adapted to the viscosity of the product P of so as to slow its flow from the tank R to the volume inside of socket 1

Puis, le produit déforme la lèvre 23 et pénètre dans le compartiment aval de la douille 1.Then, the product deforms the lip 23 and enters the compartment downstream of the socket 1.

Il exerce ensuite une poussée sur le bouchon 20, qui se déplace axialement vers l'extérieur de l'orifice 10. Ce mouvement comprime le ressort 3 et libère ainsi un passage pour le produit P vers l'extérieur entre la tige 21 et le collet 14.It then pushes on the plug 20, which moves axially towards the outside of the orifice 10. This movement compresses the spring 3 and thus frees a passage for the product P towards the outside between the rod 21 and collar 14.

Dans le mode de réalisation représenté sur les figures 5a et 5b, la paroi transversale 22 est élastiquement déformable et est retenue à l'extrémité de raccordement 11 de la douille 1 en formant ainsi un moyen de rappel élastique de l'obturateur 2. La paroi 22 et la lèvre 23 sont réunies par un collier central 26 qui est serré sur un étranglement 21a de la tige 21.In the embodiment shown in Figures 5a and 5b, the transverse wall 22 is elastically deformable and is retained at the connection end 11 of the socket 1, thus forming a means of elastic return of the shutter 2. The wall 22 and the lip 23 are joined by a central collar 26 which is tightened on a throttle 21a of the rod 21.

La paroi 22 est ajourée de façon à ménager des passages pour le produit P entre le réservoir R et le compartiment amont de la douille.The wall 22 is perforated so as to provide passages for the product P between the tank R and the upstream compartment of the socket.

Claims (18)

  1. A nozzle for dispensing a liquid or semi-liquid substance (P) and designed to be mounted on a tank (R) suitable for being put under pressure, the nozzle being of the type comprising:
    a thimble (1) provided firstly with a coupling end (11) for coupling to the tank (R) and secondly with an ejection orifice (10); and
    a moving shutter (2) housed inside said thimble (1), the shutter being constituted by a rod (21) carrying a plug (20) at its outer end which co-operates with the ejection orifice (10) to form a delivery valve, and carrying a transverse wall (22) at its inner end that leaves a passage for the substance (P) and that co-operates with resilient return means (3) for returning the moving shutter (2) towards a closed position in which the plug (20) is engaged in sealed manner in the delivery orifice (10), the nozzle being characterized in that it further comprises an admission valve constituted by a deformable peripheral lip (23) disposed in the annular passage for the substance around the moving shutter (2), and subdividing the space inside the thimble (1) in sealed manner into an upstream compartment and a downstream compartment.
  2. A nozzle according to claim 1, characterized in that said lip (23) is secured to the rod (21) and, in the closed position of the valve, the free end of the rod is in bearing contact against the inside wall of the thimble (1).
  3. A nozzle according to claim 1 or 2, characterized in that said lip (23) is carried by a ring that is coaxial with the rod (21).
  4. A nozzle according to claim 3, characterized in that said transverse wall (22) is integrally formed with said ring.
  5. A nozzle according to one of the preceding claims, characterized in that the upstream end of the moving shutter (2) is secured to the rod (21).
  6. A nozzle according to one of the preceding claims, characterized in that said transverse wall (22) is resiliently deformable and is retained by its peripheral edge at the coupling end (11) of the thimble (1), thereby forming resilient return means for the shutter (2).
  7. A nozzle according to claim 1, characterized in that said rod (21) is axial and together with the transverse wall (22) it defines a peripheral shoulder (22a).
  8. A nozzle according to claim 7, characterized in that said resilient return means (3) comprise a helical spring surrounding the rod (21) of the shutter (2) and having a rear end bearing against the shoulder (22a) and a front end bearing against the inside wall of the thimble (1).
  9. A nozzle according to claim 8, characterized in that the front end of the spring (3) bears against longitudinal ribs (12) extending along the inside wall of the thimble (1).
  10. A nozzle according to claim 8, characterized in that the front end of the spring (3) bears against the bottom of an annular groove (13) formed in the inside wall of the thimble (1) and defined on its inside edge by a collar (14) for guiding the rod (21).
  11. A nozzle according to one of the preceding claims, characterized in that said plug (20) is constituted firstly by a body (20a) whose side face in the closed position is pressed in sealed manner against the inside edge (10a) of the ejection orifice (10), and secondly by a head (20b) projecting to the outside of the thimble (1).
  12. A nozzle according to claim 11, characterized in that the ejection orifice (10) has a frustoconical profile corresponding to the profile of the body (20a) of the plug (20).
  13. A nozzle according to claim 11 or 12, characterized in that the inside edge (10a) of the ejection orifice (10) is provided with an annular ring against which the side face of the plug body (20) bears in sealed manner when closed.
  14. A nozzle according to one of claims 11 to 13, characterized in that the thimble (1) has a bullet-shaped profile, and the head (20b) of the plug (20) has a curvilinear profile of curvature defined so as to appear to continue the bullet-shaped profile.
  15. A nozzle according to one of the preceding claims, characterized in that the coupling end (11) of the thimble (1) has ribs (11a) on its inside wall constituting an abutment for the transverse wall (22).
  16. A nozzle according to one of the preceding claims, characterized in that said rod (21) is secured to the transverse wall (22) by being engaged in a clamping sleeve (24) carrying said face.
  17. A nozzle according to one of the preceding claims, characterized in that it further comprises a removable cap (4) designed to cover the thimble (1) and having an end wall whose inside face bears against the plug (20) so as to guarantee that it is sealed in the closed position.
  18. A nozzle according to one of the preceding claims, characterized in that said transverse wall (22) extends towards the tank (R) by means of a stud (25) engaged in a sleeve (5) projecting into said tank.
EP97900238A 1996-01-08 1997-01-07 Nozzle for dispensing a liquid or pasty material Expired - Lifetime EP0874761B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9600120 1996-01-08
FR9600120A FR2743353B1 (en) 1996-01-08 1996-01-08 DISPENSING TIP FOR LIQUID OR PASTY PRODUCTS
PCT/FR1997/000021 WO1997025253A1 (en) 1996-01-08 1997-01-07 Nozzle for dispensing a liquid or pasty material

Publications (2)

Publication Number Publication Date
EP0874761A1 EP0874761A1 (en) 1998-11-04
EP0874761B1 true EP0874761B1 (en) 1999-10-20

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Application Number Title Priority Date Filing Date
EP97900238A Expired - Lifetime EP0874761B1 (en) 1996-01-08 1997-01-07 Nozzle for dispensing a liquid or pasty material

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US (1) US5992764A (en)
EP (1) EP0874761B1 (en)
JP (2) JP3834061B2 (en)
AT (1) ATE185759T1 (en)
DE (1) DE69700650T2 (en)
ES (1) ES2139434T3 (en)
FR (1) FR2743353B1 (en)
PT (1) PT874761E (en)
WO (1) WO1997025253A1 (en)

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JP3834061B2 (en) 2006-10-18
ATE185759T1 (en) 1999-11-15
ES2139434T3 (en) 2000-02-01
DE69700650T2 (en) 2000-07-06
US5992764A (en) 1999-11-30
PT874761E (en) 2000-04-28
EP0874761A1 (en) 1998-11-04
WO1997025253A1 (en) 1997-07-17
DE69700650D1 (en) 1999-11-25
FR2743353B1 (en) 1998-03-27
FR2743353A1 (en) 1997-07-11
JP2000502978A (en) 2000-03-14
JP2006096420A (en) 2006-04-13

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