EP1015341B1 - Method for filling a dispenser and corresponding dispenser - Google Patents

Method for filling a dispenser and corresponding dispenser Download PDF

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Publication number
EP1015341B1
EP1015341B1 EP98952620A EP98952620A EP1015341B1 EP 1015341 B1 EP1015341 B1 EP 1015341B1 EP 98952620 A EP98952620 A EP 98952620A EP 98952620 A EP98952620 A EP 98952620A EP 1015341 B1 EP1015341 B1 EP 1015341B1
Authority
EP
European Patent Office
Prior art keywords
fluid
head member
filling
dispenser
fluid container
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
EP98952620A
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German (de)
French (fr)
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EP1015341A1 (en
Inventor
Willy Lorscheidt
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.)
RPC Wiko GmbH and Co KG
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RPC Wiko GmbH and Co KG
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Filing date
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Publication of EP1015341A1 publication Critical patent/EP1015341A1/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
    • B05B11/01—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
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1042—Components or details
    • B05B11/1043—Sealing or attachment arrangements between pump and container
    • B05B11/1046—Sealing or attachment arrangements between pump and container the pump chamber being arranged substantially coaxially to the neck of the container
    • B05B11/1047—Sealing or attachment arrangements between pump and container the pump chamber being arranged substantially coaxially to the neck of the container the pump being preassembled as an independent unit before being mounted on the container
    • 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
    • B05B11/0097—Means for filling or refilling the sprayer
    • 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
    • B05B11/02—Membranes or pistons acting on the contents inside the container, e.g. follower pistons
    • B05B11/028—Pistons separating the content remaining in the container from the atmospheric air to compensate underpressure inside the container
    • 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
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1042—Components or details
    • B05B11/1061—Pump priming means

Definitions

  • the invention relates to a method for filling a dispenser with a dispenser Fluid, in particular a pasty mass, according to the preamble of the claim.
  • the invention also relates to a fluid dispenser, in particular for pasty material, according to the preamble of claim 3.
  • Dispensers of the aforementioned type are suitable for dispensing flowable fluid media including pastes.
  • Filling machines that are used to fill a dispenser occur Fill tolerances and slightly different fill levels in this context in the donor's media storage container. For donors who filled the top and then closed with the head piece containing the conveyor mechanism with a filling volume at the lower limit of the tolerance range (minimum filling quantity) air remains in the storage chamber of the fluid container, which will end up in a donation channel when the donor is used later and can lead to interruptions in the flow of the medium to be donated. This is perceived by the consumer as disturbing or can be used in applications where exact dosing behavior is important, e.g. for pharmaceutical products, lead to considerable difficulties.
  • a procedure for filling a donor as well as a donor are known from EP-A-263 995. There is an overfill of the storage tank by deformation of a trailing piston arranged in the storage container compensated. With a filling volume at the lower spread limit, however get air into a donation channel there.
  • a method according to the preamble of claim 1 and a donor according to the preamble of claim 3 are known from US-A-4 817 829.
  • the invention is therefore based on the object of a method and a fluid dispenser to improve the type mentioned in such a way that a smooth, to improve Usage characteristics of the dispenser leading filling of the dispenser too taking into account the filling tolerances of the filling machine and one in use improved donors are created.
  • the pump dispenser is designed by dimensioning the displacement path and thereby Occurring volume displacement, the pump chamber, if necessary, also partially one downstream of the pumping chamber, for the discharge opening leading discharge channel can be filled with fluid for the first time, so that already with the first or a subsequent dispensing stroke can be used to deliver controlled fluid.
  • the displacement path is chosen so that one with the outlet mouth of the head piece connectable fluid inlet opening of the head piece always into the fluid remains immersed.
  • a continuous dispensing of the dispenser becomes a filling level in the fluid container adjusted during filling so that the displaced when putting on the head piece Volume up to the first airtight seal between a predeterminable volume maximum and minimum value. This will, on the one hand, and become an overfill Air pockets on the other hand avoided.
  • the Head piece an annular groove for receiving a container wall surrounding the filling opening of the fluid container provided, the depth, based on the position of a Upper edge of this container wall when air is first shut off and in an end position, at least when the donor is fully assembled corresponds to the specifiable displacement path.
  • the ring groove and the upper edge simultaneously take over the sealing function the fluid chamber and allow a displacement of the head piece relative to the fluid container beyond the first airtight seal of the storage chamber up to the locked end position of the head piece on the fluid container.
  • a locking device between the head piece and the fluid container intended to determine the end position.
  • This can be particularly easy producible in the area of the upper edge on the one hand and the annular groove on the other hand are provided and for example designed as a snap or snap connection become.
  • This snap or snap connection then fulfills the fastening function also the location of the head piece on the fluid container in fully assembled condition of the dispenser, i.e. in the end position of the fully assembled head piece.
  • the fastening device for example between the head piece and the fluid container can also be designed as a screw connection, which is a particularly simple Refill the storage container after emptying.
  • the dispenser 1 consists of a fluid container 10 for Inclusion of a pasty mass to be dispensed and a head piece 20.
  • the fluid container 10 forms a hollow cylinder, which at the upper end (the head piece 20 facing) has a filling opening 11, which fills one inside the Provided fluid container 10 provided storage chamber 12.
  • the bottom is the Fluid container 10 limited by a bottom wall 15.
  • the cross section of the filler opening 11 corresponds to the cross section of the storage chamber 12, so that a trailing piston 14 can be inserted through the filling opening 11 into the fluid container.
  • the area of the filling opening 11 is a fastening section on the outer wall of the fluid container 10 13 provided for snap connection to the head piece 20.
  • This attachment section 13 is designed here as a snap or snap connection but can also be designed as a thread.
  • the head piece 20 has a pump head 20a in the present exemplary embodiment on, which contains a pump chamber 29 delimited by two check valves.
  • the Head piece 20 has a bottom wall on a side facing fluid container 10 22, from which a tubular chimney part projects as a projection 21.
  • the lead 21 ends in the direction of the fluid chamber 10 in an end wall 23 with a fluid inlet opening 24th
  • This fluid inlet opening 24 communicates with a downstream pump chamber 29, which in turn has a pump chamber 29 with an orifice 28 of the head piece 20 connecting fluid delivery channel 29a is connected.
  • annular groove on the bottom 25 which is delimited in the radial direction by a locking contour 27 of the pump head becomes.
  • this ring groove is located 25 in engagement with an upper edge 13 of an upper edge running around the filling opening 11 Wall section of the fluid container 10.
  • the fastening section is also located 27 of the head piece 20 with the fastening section 13 of the fluid container in Intervention.
  • the fastening device 15, 27 can also be designed as a screw connection, a groove base 26 of the annular groove 25 then serves as a stop.
  • the filling of the dispenser is explained below with reference to FIGS. 1 to 3.
  • a filling device After insertion of the trailing piston 14 into the fluid container 10, pasty material to be dispensed is filled into the storage chamber 12 of the fluid container 10 using a filling device.
  • the volume to be filled is set on the filling device. This is calculated from the geometric conditions of the fluid container 10 with the trailing piston 14 and a desired fill level in the storage chamber 12. Due to filling tolerances of the filling device, there are fill level fluctuations in the fluid container 10 between a minimum fill level A 1 and a maximum fill level A 2 .
  • Fig.2 shows a partially assembled Condition in which for the first time an airtight seal between the head piece 20 and the fluid container 10 is achieved.
  • the sealing effect is achieved by a predetermined engagement position of the fastening portion 27 of the head piece 20 with the fastening section 15 of the fluid container 10 ensures at the same time beginning of internal contact between the upper edge delimiting the filling opening 13 11 of the fluid container 10 and a cup-shaped inner portion 26a of the Headpiece 20.
  • suitable devices for example grooves, on the fastening device 15.27 provided.
  • the head piece 20 and the fluid container 10 moves further towards one another in order to reach the end position shown in FIG. 3, i.e. to achieve the fully assembled condition of the dispenser. Both are shifted to each other by the displacement path X, whereby the opening edge 13 penetrates further into the annular groove 25. Because of the airtight Finally, the contents of the storage chamber are compressed. Because of the pressure increase in the fluid container 10, medium is pressed into the head piece 20. Through the predetermined displacement by the fixed path X, the head piece 20 with a exactly definable volume of medium filled. In the embodiment shown this defined volume is chosen so that the displacement by the path X leads to a filling of a pump chamber 29 in the head piece 20, so that already at the first delivery of medium, a quantity defined by the piston stroke Medium can be delivered.
  • the flow resistance for pushing medium through opening 24 towards the mouth of the head piece 20 is chosen so that until it is reached of the airtight seal hardly penetrates medium into the head piece 20, so that an increase in the level of the medium in the fluid container 10 outside the projection 21 and the associated pushing out of residual air from the container is made possible.
  • the flow resistance is chosen so that after Achieving the airtight seal when moving by the path X medium can penetrate into the head piece 20 without the trailing piston 14 moving or is significantly deformed. In the embodiment shown, this is Flow resistance due to the elasticity of a shortly above the opening 24 Valve 30 determines the check valve opening here into the pumping chamber 29 is trained.
  • the check valve 30 is point symmetrical to the axial direction formed of the dispenser and concentric to one extending in the axial direction Center axis of the dispenser arranged.
  • the displacement remains with the path X Opening 24 is always immersed in the medium, so that in the subsequent donation no air possibly still in the storage chamber in the donation channel of the Head piece 20 can reach.
  • a minimum fill level C1 is reached in the end position allowed permanent contact of the opening 24 with the medium.
  • the maximum fill level C2 is reached at the upper spread limit.
  • the fluid container cross section and the position of the opening 24 is determined.
  • the height L of the projection 21 is chosen so that this before first airtight seal in contact with the medium in the storage chamber 12 comes. The height L is limited by the displacement volume of the projection 21 when immersed in the medium, otherwise it will be airtight before the first one is reached Closed medium between the fluid container 10 and the head piece 20th is pushed out. Given the shape of the head piece 20 and the fluid container 10, the filling quantity to be set on the filling device continues to be dependent the displacement path X and also the viscosity of the medium.

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  • Basic Packing Technique (AREA)

Abstract

The invention relates to a method for filling a dispenser and to a corresponding dispenser. The aim of the invention is to fill a defined part of a head piece (20) when the dispenser is assembled, immediately after the dispenser has been filled with material, and to ensure that the material is dispensed without interruption during subsequent use. To this end, once the fluid container (10) has been sealed with a head piece (20) so that it is airtight a first time, the two are moved further against each other around a predetermined fixed path of displacement (X). The invention also relates to a dispenser, especially for carrying out the filling process. A bottom surface of the head piece (20) and a filling opening of the fluid container (10) which can be connected thereto are configured so that they correspond.

Description

Die Erfindung betrifft ein Verfahren zum Befüllen eines Spenders mit einem auszuspenden Fluid, insbesondere einer pastösen Masse, gemäß dem Oberbegriff des Anspruchs. Die Erfindung betrifft ferner einen Fluidspender, insbesondere für pastöses Material, gemaß dem Oberbegriff des Anspruchs 3.The invention relates to a method for filling a dispenser with a dispenser Fluid, in particular a pasty mass, according to the preamble of the claim. The invention also relates to a fluid dispenser, in particular for pasty material, according to the preamble of claim 3.

Spender der vorgenannten Art eignen sich zum Spenden fließfähiger fluider Medien einschließlich Pasten.Dispensers of the aforementioned type are suitable for dispensing flowable fluid media including pastes.

Bei Abfüllmaschinen, die zum Befüllen eines Spenders verwendet werden, treten Fülltoleranzen und in diesem Zusammenhang geringfügig unterschiedliche Füllstände in dem Medienspeicherbehälter des Spenders auf. Bei Spendern, die kopfseitig befüllt und anschließend mit dem Kopfstück, das den Fördermechanismus enthält, verschlossen werden, kann bei einem Füllvolumen an der Untergrenze des Toleranzfeldes (minimale Einfüllmenge) Luft in der Speicherkammer des Fluidbehälters verbleiben, die bei einer späteren Verwendung des Spenders in einen Spendekanal gelangen und so zu Unterbrechungen im Fluß des zu spendenden Mediums führen kann. Dieses wird vom Verbraucher als störend empfunden bzw. kann bei Anwendungen, wo es auf ein genaues Dosierverhalten ankommt, z.B. bei pharmazeutischen Produkten, zu erheblichen Schwierigkeiten führen.Filling machines that are used to fill a dispenser occur Fill tolerances and slightly different fill levels in this context in the donor's media storage container. For donors who filled the top and then closed with the head piece containing the conveyor mechanism with a filling volume at the lower limit of the tolerance range (minimum filling quantity) air remains in the storage chamber of the fluid container, which will end up in a donation channel when the donor is used later and can lead to interruptions in the flow of the medium to be donated. This is perceived by the consumer as disturbing or can be used in applications where exact dosing behavior is important, e.g. for pharmaceutical products, lead to considerable difficulties.

Bei Füllvolumina an der Obergrenze des Toleranzfeldes (maximale Einfüllmenge) besteht die Gefahr, daß beim Aufsetzen des Spenderkopfes auf den Speicherbehälter Medium entweder zwischen dem Speicherbehälter und dem Spendekopf oder durch den Spendekopf selbst herausgepreßt wird.With filling volumes at the upper limit of the tolerance range (maximum filling quantity) the risk that when placing the dispenser head on the storage container Medium either between the storage container and the dispensing head or through the dispensing head is pressed out itself.

Ein Verfahren zum Befüllen eines Spenders sowie ein Spender sind aus der EP-A-263 995 bekannt. Dort wird ein Überfüllen des Speicherbehälters durch eine Verformung eines im Speicherbehälter angeordneten Nachlaufkolbens kompensiert. Bei einem Füllvolumen an der unteren Streugrenze kann jedoch dort Luft in einen Spendekanal gelangen.A procedure for filling a donor as well as a donor are known from EP-A-263 995. There is an overfill of the storage tank by deformation of a trailing piston arranged in the storage container compensated. With a filling volume at the lower spread limit, however get air into a donation channel there.

Da bei dem bekannten Spender bei Überfüllung der Nachlaufkolben ausweicht, ist es überdies nicht möglich, einen definierten Raum innerhalb des Spendekopfes mit Medium zu befüllen, so daß z.B. bei Pumpspendern erst nach mehreren Leerhüben Material ausgespendet wird.Since in the known dispenser the trailing piston dodges when overfilled, it is moreover, it is not possible to use a defined space within the dispensing head with medium to be filled so that e.g. for pump dispensers, material only after several empty strokes is donated.

Ein Verfahren gemäß dem Oberbegriff des Anspruchs 1 und ein Spender gemäß dem Oberbegriff des Anspruchs 3 sind aus der US-A-4 817 829 bekannt.A method according to the preamble of claim 1 and a donor according to the preamble of claim 3 are known from US-A-4 817 829.

Der Erfindung liegt daher die Aufgabe zugrunde, ein Verfahren und einen Fluidspender der eingangs genannten Art zu verbessern derart, daß ein glattes, zu verbesserten Gebrauchseigenschaften des Spenders führendes Befüllen des Spenders auch unter Berücksichtigung der Fülltoleranzen der Abfüllmaschine erreicht und ein im Gebrauch verbesserter Spender geschaffen werden.The invention is therefore based on the object of a method and a fluid dispenser to improve the type mentioned in such a way that a smooth, to improve Usage characteristics of the dispenser leading filling of the dispenser too taking into account the filling tolerances of the filling machine and one in use improved donors are created.

Diese Aufgabe wird bei einem Verfahren der eingangs genannten Art gemäß Anspruch 1 gelöst.This task is carried out in a method of the type mentioned at the beginning solved according to claim 1.

Beim Aufsetzen des Kopfstückes berührt zuerst ein vorspringender Bereich des Kopfstückes das Medium im Fluidbehälter und taucht in dieses ein. Bis zum Eintreten eines luftdichten Abschlusses zwischen dem Kopfstück und dem Fluidbehälter wird Luft aus dem Speicherbehälter, die sich über dem auszuspendenden Material befindet, verdrängt. Durch die Weiterbewegung des Kopfstückes und den vorgegebenen, festen Verschiebungsweg wird der Inhalt der Fluidkammer (vorzugsweise eine pastöse Masse) komprimiert. Hierdurch kann Fluid in einer Pumpkammer und Fluidabgabekanal des Kopfstückes gedrückt werden, ohne daß das Fluid jedoch eine Ausspendemündung des Fluidausgabekanals erreicht. Bei einem Pumpspender wird durch gezielte Dimensionierung des Verschiebungsweges und der dabei auftretenden Volumenverdrängung die Pumpkammer gegebenenfalls partiell auch ein stromabseitig sich an die Pumpkammer anschließender, zur Ausspendemündung führender Abgabekanal erstmals mit Fluid gefüllt werden, so daß bereits mit dem ersten oder einem abfolgenden Spendehub kontrolliert Fluid abgegeben werden kann. Der Verschiebungsweg ist dabei so gewählt, daß eine mit der Ausspendemündung des Kopfstückes verbindbare Fluid-Eintrittsöffnung des Kopfstückes stets in das Fluid eingetaucht bleibt.When putting on the head piece, a projecting area of the touches first Head piece the medium in the fluid container and immersed in this. Until you enter an airtight seal between the head piece and the fluid container Air from the storage container, which is located above the material to be dispensed, repressed. By moving the head piece and the specified, The content of the fluid chamber (preferably a pasty one) becomes a fixed displacement path Mass) compressed. This allows fluid in a pumping chamber and fluid delivery channel of the head piece are pressed without the fluid, however, a dispensing mouth of the fluid discharge channel reached. At a The pump dispenser is designed by dimensioning the displacement path and thereby Occurring volume displacement, the pump chamber, if necessary, also partially one downstream of the pumping chamber, for the discharge opening leading discharge channel can be filled with fluid for the first time, so that already with the first or a subsequent dispensing stroke can be used to deliver controlled fluid. The displacement path is chosen so that one with the outlet mouth of the head piece connectable fluid inlet opening of the head piece always into the fluid remains immersed.

Zur Kompensation von Fülltoleranzen einer Abfüllvorrichtung und zur Gewährleistung eines kontinuierlichen Spendens des Spenders wird eine Füllhöhe im Fluidbehälter beim Befüllen so eingestellt, daß das beim Aufsetzen des Kopfstückes verdrängte Volumen bis zum ersten luftdichten Abschluß zwischen einem vorgebbaren Volumenhöchstwert und -mindestwert liegt. Hierdurch wird ein Überfüllen einerseits und werden Lufteinschlüsse in dem Kopfstück andererseits vermieden.To compensate for filling tolerances of a filling device and to guarantee A continuous dispensing of the dispenser becomes a filling level in the fluid container adjusted during filling so that the displaced when putting on the head piece Volume up to the first airtight seal between a predeterminable volume maximum and minimum value. This will, on the one hand, and become an overfill Air pockets on the other hand avoided.

Weitere bevorzugte Ausgestaltungen des erfindungsgemäßen Verfahrens sind in den zugehörigen Unteransprüchen dargelegt.Further preferred embodiments of the method according to the invention are in the associated subclaims.

Die vorgenannte Aufgabe hinsichtlich des Spenders wird bei einem Spender der eingangs genannten Art erfindungsgemäß durch die Merkmale des Anspruchs 3 gelöst.The aforementioned task with regard to the donor is the starting point for a donor mentioned type according to the invention by the features of claim 3 solved.

Durch eine derartige Gestaltung wird neben dem Ausgleich von Abfülltoleranzen der Füllmaschinen ein zuverlässiges Vorfüllen eines definierten Teils des Ausförderkanals im Kopfstück einschließlich einer Fördereinrichtung , wie z.B.einer Pumpkammer, sichergestellt. Zudem wird vermieden, daß Luft in den Ausförderkanal des Kopfstückes eindringen kann bzw. Fluid bei Aufsetzen des Spendekopfes aus dem Spender herausgepreßt wird. Through such a design, in addition to the compensation of filling tolerances Filling machines a reliable pre-filling of a defined part of the discharge channel in the header including a conveyor, such as a pumping chamber. In addition, it is avoided that air in the discharge channel of the head piece can penetrate or fluid is pressed out of the dispenser when the dispensing head is attached becomes.

Gemäß einer vorteilhaften Ausführungsform des Spenders ist an einer Bodenseite des Kopfstückes eine Ringnut zur Aufnahme einer die Einfüllöffnung umgebenden Behälterwandung des Fluidbehälters vorgesehen, deren Tiefe, bezogen auf die Lage einer Oberkante dieser Behälterwandung bei erstmaligem Luftabschluß und in einer Endstellung, die dann vorliegt, wenn der Spender vollständig zusammengebaut ist, mindestens dem vorgebbaren Verschiebungsweg entspricht. Dies ermöglicht eine konstruktiv einfache Lösung zur Erzielung des vorgebbaren Verschiebungsweges. Die Ringnut und die Oberkante übernehmen dabei gleichzeitig die Funktion des Abdichtens der Fluidkammer und ermöglichen eine Verschiebung des Kopfstückes relativ zu dem Fluidbehälter über den ersten luftdichten Abschluß der Speicherkammer hinaus bis in die verrastete Endstellung des Kopfstückes auf dem Fluidbehälter.According to an advantageous embodiment of the dispenser, the Head piece an annular groove for receiving a container wall surrounding the filling opening of the fluid container provided, the depth, based on the position of a Upper edge of this container wall when air is first shut off and in an end position, at least when the donor is fully assembled corresponds to the specifiable displacement path. This enables a constructive simple solution to achieve the definable displacement path. The The ring groove and the upper edge simultaneously take over the sealing function the fluid chamber and allow a displacement of the head piece relative to the fluid container beyond the first airtight seal of the storage chamber up to the locked end position of the head piece on the fluid container.

Vorzugsweise ist zwischen dem Kopfstück und dem Fluidbehälter eine Verriegelungsvorrichtung zur Festlegung der Endstellung vorgesehen. Diese kann besonders einfach herstellbar im Bereich der Oberkante einerseits und der Ringnut andererseits vorgesehen werden und beispielsweise als Schnapp- oder Rastverbindung ausgebildet werden. Diese Schnapp- oder Rastverbindung erfüllt dann neben der Befestigungsfunktion auch die Lagefestlegung des Kopfstückes an dem Fluidbehälter im vollständig zusammengebauten Zustand des Spenders, d.h. in der Endstellung des fertig montierten Kopfstückes.There is preferably a locking device between the head piece and the fluid container intended to determine the end position. This can be particularly easy producible in the area of the upper edge on the one hand and the annular groove on the other hand are provided and for example designed as a snap or snap connection become. This snap or snap connection then fulfills the fastening function also the location of the head piece on the fluid container in fully assembled condition of the dispenser, i.e. in the end position of the fully assembled head piece.

Anstelle der Lagefestlegung des Kopfstückes am Fluidbehälter über die Schnappoder Rastverbindung kann diese auch durch eine Axialbegrenzung der Ringnut erfolgen, gegen die die Oberkante des Fluidbehälters in der Endstellung anliegt. In diesem Fall wird der Verschiebungsweg durch die Nuttiefe der Ringnut definiert. Die Befestigungsvorrichtung zwischen dem Kopfstück und dem Fluidbehälter kann beispielsweise auch als Schraubverbindung ausgebildet werden, was ein besonders einfaches Nachfüllen des Speicherbehälters nach einer Entleerung ermöglicht.Instead of determining the position of the head piece on the fluid container via the snap or Snap connection can also be done by axially limiting the ring groove, against which the upper edge of the fluid container rests in the end position. In this In this case, the displacement path is defined by the groove depth of the ring groove. The fastening device for example between the head piece and the fluid container can also be designed as a screw connection, which is a particularly simple Refill the storage container after emptying.

Im folgenden wird die Erfindung anhand eines Ausführungsbeispieles und zugehöriger Zeichnung näher erläutert. In diesem zeigen:

Fig. 1
einen Fluidbehälter und ein Kopfstück eines Spenders vor Montage nach dem Befüllen des Fluidbehälters,
Fig.2
den Spender im teilweise montierten Zustand, wobei das Kopfstück teilweise auf den Fluidbehälter aufgeschoben ist, am Beginn eines Luftabschlusses einer Fluidkammer des Fluidbehälters, und
Fig.3
den Spender im vollständig zusammengebauten Zustand, mit dem Kopfstück auf dem Fluidbehälter in einer Endstellung.
The invention is explained in more detail below with the aid of an exemplary embodiment and the associated drawing. In this show:
Fig. 1
a fluid container and a head piece of a dispenser before assembly after filling the fluid container,
Fig.2
the dispenser in the partially assembled state, the head piece being partially pushed onto the fluid container, at the beginning of an air exclusion of a fluid chamber of the fluid container, and
Figure 3
the dispenser in the fully assembled state, with the head piece on the fluid container in an end position.

Anhand von Fig.1 wird nachfolgend ein Aufbau eines Spenders 1 nach dem Ausführungsbeispiel beschrieben. Der Spender 1 besteht aus einem Fluidbehälter 10 zur Aufnahme einer auszuspendenden pastösen Masse und einem Kopfstück 20.A structure of a dispenser 1 according to the exemplary embodiment is described below with reference to FIG described. The dispenser 1 consists of a fluid container 10 for Inclusion of a pasty mass to be dispensed and a head piece 20.

Der Fluidbehälter 10 bildet einen Hohlzylinder, der am oberen Ende (dem Kopfstück 20 zugewandt) eine Einfüllöffnung 11 aufweist, die ein Befüllen einer innerhalb des Fluidbehälters 10 vorgesehenen Speicherkammer 12 erlaubt. Bodenseitig ist der Fluidbehälter 10 durch eine Bodenwand 15 begrenzt. Der Querschnitt der Einfüllöffnung 11 entspricht dem Querschnitt der Speicherkammer 12, so daß ein Nachlaufkolben 14 durch die Einfüllöffnung 11 in den Fluidbehälter eingesetzt werden kann. Im Bereich der Einfüllöffnung 11 ist an der Außenwand des Fluidbehälters 10 ein Befestigungsabschnitt 13 zur Rastverbindung mit dem Kopfstück 20 vorgesehen. Dieser Befestigungsabschnitt 13 ist hier als Rast- bzw. Schnappverbindung ausgebildet, kann jedoch auch als Gewinde ausgeführt werden.The fluid container 10 forms a hollow cylinder, which at the upper end (the head piece 20 facing) has a filling opening 11, which fills one inside the Provided fluid container 10 provided storage chamber 12. The bottom is the Fluid container 10 limited by a bottom wall 15. The cross section of the filler opening 11 corresponds to the cross section of the storage chamber 12, so that a trailing piston 14 can be inserted through the filling opening 11 into the fluid container. in the The area of the filling opening 11 is a fastening section on the outer wall of the fluid container 10 13 provided for snap connection to the head piece 20. This attachment section 13 is designed here as a snap or snap connection but can also be designed as a thread.

Das Kopfstück 20 weist im vorliegenden Ausführungsbeispiel einen Pumpkopf 20a auf, der eine durch zwei Rückschlagventile begrenzte Pumpkammer 29 enthält. Das Kopfstück 20 weist an einer dem Fluidbehälter 10 zugewandten Seite eine Bodenwand 22 auf, von der ein rohrförmiges Kaminteil als Vorsprung 21 vorspringt. Der Vorsprung 21 endet in Richtung der Fluidkammer 10 in einer Stirnwand 23 mit einer Fluideintrittsöffnung 24. The head piece 20 has a pump head 20a in the present exemplary embodiment on, which contains a pump chamber 29 delimited by two check valves. The Head piece 20 has a bottom wall on a side facing fluid container 10 22, from which a tubular chimney part projects as a projection 21. The lead 21 ends in the direction of the fluid chamber 10 in an end wall 23 with a fluid inlet opening 24th

Diese Fluideintrittsöffnung 24 kommuniziert mit einer stromabseitigen Pumpkammer 29, die ihrerseits mit einem die Pumpkammer 29 mit einer Mündung 28 des Kopfstükkes 20 verbindenden Fluidabgabekanal 29a verbunden ist.This fluid inlet opening 24 communicates with a downstream pump chamber 29, which in turn has a pump chamber 29 with an orifice 28 of the head piece 20 connecting fluid delivery channel 29a is connected.

Weiterhin ist mit einer Außenhülse 22a des Kopfstückes 20 bodenseitig eine Ringnut 25 gebildet, die in Radialrichtung durch eine Rastkontur 27 des Pumpkopfes begrenzt wird. Im zusammengebauten Zustand des Spenders (siehe Fig.3) steht diese Ringnut 25 in Eingriff mit einer um die Einfüllöffnung 11 verlaufenden Oberkante 13 eines oberen Wandabschnittes des Fluidbehälters 10. Dabei steht zudem der Befestigungsabschnitt 27 des Kopfstückes 20 mit dem Befestigungsabschnitt 13 des Fluidbehälters in Eingriff. Anstelle der in dem Ausführungsbeispiel gezeigten Schnappverbindung kann die Befestigungsvorrichtung 15,27 auch als Schraubverbindung ausgebildet werden, wobei dann ein Nutgrund 26 der Ringnut 25 als Anschlag dient.Furthermore, with an outer sleeve 22a of the head piece 20, there is an annular groove on the bottom 25 formed, which is delimited in the radial direction by a locking contour 27 of the pump head becomes. When the dispenser is assembled (see Fig. 3), this ring groove is located 25 in engagement with an upper edge 13 of an upper edge running around the filling opening 11 Wall section of the fluid container 10. The fastening section is also located 27 of the head piece 20 with the fastening section 13 of the fluid container in Intervention. Instead of the snap connection shown in the exemplary embodiment the fastening device 15, 27 can also be designed as a screw connection, a groove base 26 of the annular groove 25 then serves as a stop.

Im folgenden wird anhand der Fig. 1 bis 3 das Befüllen des Spenders erläutert. Nach dem Einsetzen des Nachlaufkolbens 14 in den Fluidbehälter 10 wird mit einer Abfüllvorrichtung zu spendendes, pastöses Material in die Speicherkammer 12 des Fluidbehälters 10 eingefüllt. Das einzufüllende Volumen wird dabei an der Abfüllvorrichtung eingestellt. Dieses errechnet sich aus den geometrischen Gegebenheiten des Fluidbehälters 10 mit dem Nachlaufkolben 14 sowie einer erwünschten Füllstandshöhe in der Speicherkammer 12. Aufgrund von Abfülltoleranzen der Abfüllvorrichtung kommt es zu Füllstandsschwankungen in dem Fluidbehälter 10 zwischen einer Mindestfüllstandshöhe A1 und einer Höchstfüllstandshöhe A2.The filling of the dispenser is explained below with reference to FIGS. 1 to 3. After insertion of the trailing piston 14 into the fluid container 10, pasty material to be dispensed is filled into the storage chamber 12 of the fluid container 10 using a filling device. The volume to be filled is set on the filling device. This is calculated from the geometric conditions of the fluid container 10 with the trailing piston 14 and a desired fill level in the storage chamber 12. Due to filling tolerances of the filling device, there are fill level fluctuations in the fluid container 10 between a minimum fill level A 1 and a maximum fill level A 2 .

Nach dem Befüllen des Fluidbehälters 10 wird das Kopfstück 20 auf dem Fluidbehälter 10 aufgesetzt, wie dies in den Fig.2 und 3 gezeigt ist. Fig.2 zeigt dabei einen teilmontierten Zustand, bei dem erstmals ein luftdichter Abschluß zwischen dem Kopfstück 20 und dem Fluidbehälter 10 erzielt wird. Die Dichtwirkung wird dabei durch eine vorgegebene Eingriffsstellung des Befestigungsabschnittes 27 des Kopfstückes 20 mit dem Befestigungsabschnitt 15 des Fluidbehälters 10 gewährleistet bei gleichzeitig beginnendem Innenkontakt zwischen der die Einfüllöffnung 13 begrenzenden Oberkante 11 des Fluidbehälters 10 und einem napfförmigen Innenabschnitt 26a des Kopfstückes 20. Vor dem Erreichen dieser Stellung eines erstmaligen luftdichten Abschlusses kommt ein rohrförmiges Kaminteil (Vorsprung 21) bzw. dessen Stirnseite 23 mit dem pastösen Material in dem Fluidbehälter 10 in Berührung, so daß dieses bis zum erstmaligen Luftabschluß der Speicherkammer 12 durch das Kopfstück 20 von diesem Vorsprung 21 verdrängt und zwischen dem Kopfstück 20 und dem Fluidbehälter 10 befindliche Luft über die Schnappverbindung 15,27 herausgedrückt wird. Hierzu sind geeignete Einrichtungen, beispielsweise Nuten, an der Befestigungsvorrichtung 15,27 vorgesehen. Aufgrund der durch den rohrförmigen Vorsprung beim Aufsetzen des Kopfstückes 20 bewirkten Verdrängung von Fluid steigt die Füllstandshöhe, wie in Fig.2 gezeigt, an, um je nach Erstbefüllung bei erstmaligem luftdichten Abschluß die in Fig.2 gezeigte Füllstandshöhe B zu erreichen. Bei Befüllung des Fluidbehälters 10 mit einem Füllvolumen an der unteren Toleranzgrenze wird in Fig.2 der Mindestfüllstand B1 erreicht, wobei der Pegel des Mediums außerhalb, d.h. radial um den Vorsprung 21 höher liegt als die an dem Vorsprung 21 vorgesehene Öffnung 24. Der Abstand ΔB zu der Öffnungskante 13 des Speicherbehälters ist dabei, wie in der linken Bildhälfte von Fig.2 gezeigt, maximal. Die rechte Bildhälfte von Fig.2 zeigt den maximalen Füllstand B2, der dann erreicht wird, wenn ein Füllvolumen an der oberen Streugrenze der Abfüllvorrichtung eingefüllt wurde. Dann wird der Abstand ΔB des Pegels zu der Öffnungskante 13 minimal. Das Verdrängungsvolumen des Vorsprunges 21 wird so bemessen, daß der Minimalabstand ΔB sehr klein, idealerweise zu Null wird, d.h. bei erstmaligem luftdichten Abschluß die gesamte Luft aus der Speicherkammer 12 verdrängt wird. Solange ΔB kleiner oder gleich Null bleibt, wird kein Medium aus dem Spender herausgedrückt.After filling the fluid container 10, the head piece 20 is on the fluid container 10 placed, as shown in Figures 2 and 3. Fig.2 shows a partially assembled Condition in which for the first time an airtight seal between the head piece 20 and the fluid container 10 is achieved. The sealing effect is achieved by a predetermined engagement position of the fastening portion 27 of the head piece 20 with the fastening section 15 of the fluid container 10 ensures at the same time beginning of internal contact between the upper edge delimiting the filling opening 13 11 of the fluid container 10 and a cup-shaped inner portion 26a of the Headpiece 20. Before reaching this position of an airtight seal for the first time comes a tubular chimney part (projection 21) or its end face 23 in contact with the pasty material in the fluid container 10 so that this up for the first time air closure of the storage chamber 12 through the head 20 of displaced this projection 21 and between the head piece 20 and the fluid container 10 air is pressed out via the snap connection 15,27. For this are suitable devices, for example grooves, on the fastening device 15.27 provided. Because of the tubular projection when putting it on The displacement of fluid caused by the head piece 20 increases the fill level, as in Fig.2 shown to, depending on the initial filling at the first airtight seal in Fig. 2 shown level B to reach. When filling the fluid container 10 with a filling volume at the lower tolerance limit is the minimum filling level in Fig. 2 B1 reached, with the level of the medium outside, i.e. radially around the ledge 21 is higher than the opening 24 provided on the projection 21. The distance ΔB to the opening edge 13 of the storage container, as in the left half of the figure shown by Fig.2, maximum. The right half of Fig.2 shows the maximum level B2, which is reached when a filling volume is at the upper spread limit the filling device has been filled. Then the distance ΔB of the level becomes that Opening edge 13 minimal. The displacement volume of the projection 21 becomes so dimension that the minimum distance ΔB becomes very small, ideally zero, i.e. at the first time airtight closure displaces all the air from the storage chamber 12 becomes. As long as ΔB remains less than or equal to zero, no medium is removed from the Dispenser pushed out.

Nach Erreichen des erstmaligen luftdichten Abschlusses werden das Kopfstück 20 und der Fluidbehälter 10 weiter aufeinander zu bewegt, um die in Fig.3 gezeigte Endstellung, d.h. den vollständig zusammengebauten Zustand des Spenders zu erreichen. Dabei werden beide um den Verschiebungsweg X zueinander verschoben, wobei die Öffnungskante 13 weiter in die Ringnut 25 eindringt. Aufgrund des luftdichten Abschlusses wird dabei der Speicherkammerinhalt komprimiert. Aufgrund des Druckanstieges im Fluidbehälter 10 wird Medium in das Kopfstück 20 gedrückt. Durch die vorgegebene Verschiebung um den festen Weg X wird das Kopfstück 20 mit einem genau definierbaren Volumen an Medium befüllt. Bei dem gezeigten Ausführungsbeispiel wird dieses definierte Volumen so gewählt, daß die Verschiebung um den Weg X zu einem Befüllen einer Pumpkammer 29 in dem Kopfstück 20 führt, so daß bereits bei der ersten Abgabe von Medium eine durch den Kolbenhub definierte Menge an Medium abgegeben werden kann.After reaching the first airtight seal, the head piece 20 and the fluid container 10 moves further towards one another in order to reach the end position shown in FIG. 3, i.e. to achieve the fully assembled condition of the dispenser. Both are shifted to each other by the displacement path X, whereby the opening edge 13 penetrates further into the annular groove 25. Because of the airtight Finally, the contents of the storage chamber are compressed. Because of the pressure increase in the fluid container 10, medium is pressed into the head piece 20. Through the predetermined displacement by the fixed path X, the head piece 20 with a exactly definable volume of medium filled. In the embodiment shown this defined volume is chosen so that the displacement by the path X leads to a filling of a pump chamber 29 in the head piece 20, so that already at the first delivery of medium, a quantity defined by the piston stroke Medium can be delivered.

Der Strömungswiderstand zum Drücken von Medium durch die Öffnung 24 in Richtung der Mündungsöffnung des Kopfstückes 20 ist dabei so gewählt, daß bis zum Erreichen des luftdichten Abschlusses kaum Medium in das Kopfstück 20 eindringt, so daß ein Ansteigen des Pegels des Mediums im Fluidbehälter 10 außerhalb des Vorsprunges 21 und das damit verbundene Herausdrücken von Restluft aus dem Behälter ermöglicht wird. Andererseits ist der Strömungswiderstand so gewählt, daß nach Erreichen des luftdichten Abschlusses bei dem Verschieben um den Weg X Medium in das Kopfstück 20 eindringen kann, ohne daß dabei der Nachlaufkolben 14 bewegt oder wesentlich verformt wird. In dem gezeigten Ausführungsbeispiel wird dieser Strömungswiderstand durch die Elastizität eines kurz oberhalb der Öffnung 24 angeordneten Ventils 30 bestimmt, das hier als in die Pumpkammer 29 mündendes Rückschlagventil ausgebildet ist. Zur Erzielung einer gleichmäßigen Pegelabsenkung um den Vorsprung 21 ist das Rückschlagventil 30 punktsymmetrisch zu der Axialrichtung des Spenders ausgebildet und konzentrisch zu einer in Axialrichtung verlaufenden Mittelachse des Spenders angeordnet.The flow resistance for pushing medium through opening 24 towards the mouth of the head piece 20 is chosen so that until it is reached of the airtight seal hardly penetrates medium into the head piece 20, so that an increase in the level of the medium in the fluid container 10 outside the projection 21 and the associated pushing out of residual air from the container is made possible. On the other hand, the flow resistance is chosen so that after Achieving the airtight seal when moving by the path X medium can penetrate into the head piece 20 without the trailing piston 14 moving or is significantly deformed. In the embodiment shown, this is Flow resistance due to the elasticity of a shortly above the opening 24 Valve 30 determines the check valve opening here into the pumping chamber 29 is trained. To achieve an even level reduction by the projection 21, the check valve 30 is point symmetrical to the axial direction formed of the dispenser and concentric to one extending in the axial direction Center axis of the dispenser arranged.

Wie Fig.3 entnommen werden kann, bleibt bei einer Verschiebung um den Weg X die Öffnung 24 immer in das Medium eingetaucht, so daß beim nachfolgenden Spenden keine eventuell noch in der Speicherkammer befindliche Luft in den Spendekanal des Kopfstückes 20 gelangen kann. Selbst bei einer Befüllung mit einem Volumen an der unteren Streugrenze wird in der Endstellung ein Mindestfüllstand C1 erreicht, der einen ständigen Kontakt der Öffnung 24 mit dem Medium erlaubt. Bei einem Füllvolumen an der oberen Streugrenze wird der maximale Füllstand C2 erreicht.As can be seen in FIG. 3, the displacement remains with the path X Opening 24 is always immersed in the medium, so that in the subsequent donation no air possibly still in the storage chamber in the donation channel of the Head piece 20 can reach. Even when filling with a volume on the lower scatter limit, a minimum fill level C1 is reached in the end position allowed permanent contact of the opening 24 with the medium. With a filling volume The maximum fill level C2 is reached at the upper spread limit.

Um ein sicheres Füllen eines definierten Teils, insbesondere der Pumpkammer und des Ausgabekanals des Kopfstückes 20 zu erzielen, wird das an der Abfüllvorrichtung einzustellende Füllvolumen bzw. eine an dem Fluidbehälter 10 zu erzielende Soll-Füllhöhe in Abhängigkeit der Füllmengenstreuung der Abfüllvorrichtung, des Fluidbehälterquerschnittes und der Lage der Öffnung 24 bestimmt. Zur Vermeidung des Eindringens von Luft wird die Höhe L des Vorsprunges 21 so gewählt, daß diese vor dem erstmaligen luftdichten Abschluß mit dem Medium in der Speicherkammer 12 in Berührung kommt. Die Höhe L ist begrenzt durch das Verdrängungsvolumen des Vorsprunges 21 beim Eintauchen in das Medium, da sonst vor Erreichen des ersten luftdichten Abschlusses Medium zwischen dem Fluidbehälter 10 und dem Kopfstück 20 herausgedrückt wird. Bei vorgegebener Gestalt des Kopfstückes 20 und des Fluidbehälters 10 wird die an der Abfüllvorrichtung einzustellende Füllmenge weiterhin in Abhängigkeit des Verschiebungsweges X und auch der Viskosität des Mediums bestimmt.To safely fill a defined part, especially the pump chamber and To achieve the output channel of the head piece 20, that is at the filling device filling volume to be set or a target filling level to be achieved on the fluid container 10 depending on the filling quantity spread of the filling device, the fluid container cross section and the position of the opening 24 is determined. To avoid intrusion of air, the height L of the projection 21 is chosen so that this before first airtight seal in contact with the medium in the storage chamber 12 comes. The height L is limited by the displacement volume of the projection 21 when immersed in the medium, otherwise it will be airtight before the first one is reached Closed medium between the fluid container 10 and the head piece 20th is pushed out. Given the shape of the head piece 20 and the fluid container 10, the filling quantity to be set on the filling device continues to be dependent the displacement path X and also the viscosity of the medium.

Claims (6)

  1. Method of filling a dispenser (1) with a fluid, particularly a pasty mass, which is to be dispensed, wherein the dispenser (1) comprises a head member (20) with a pump chamber (29) and a fluid container (10) with a filling opening (11), which after filling of the fluid is hermetically closed by the head member (20), which is partly pushed from above into the filled fluid container (10), by way of a fastening section (13, 27), wherein
    a) when placing the head member (20) on the filled fluid container (10) and pushing-in the head member (20) initially over a part of the fastening section (13, 27) a downwardly projecting and downwardly open tubular projection (21) of the head member (20) dips into the fluid and displaces this into the annular chamber between the tubular projection (21) and the container wall of the fluid container (10), whereby the air included in this annular chamber is forced out by way of the fastening section (13, 27), and
    b) after producing a hermetic closure by means of the fastening section (13, 27) between the head member (20) and the fluid container (10) by further pushing of the head member (20) into an end setting on the fluid container (10) over the remaining displacement path (X) of the fastening section (13, 27) as sealing distance a further displacement of fluid through the tubular projection (21) takes place, whereby the fluid now with inclusion of an air residual volume pressurably penetrates into a part of the head member (20) under at least complete filling of the pump chamber (29),
    characterised in that the further pushing-in of the head member takes place without the fluid then reaching the dispensing mouth (28) of the fluid delivery channel (29a) and without the follow-up piston (14), which is disposed in the fluid container (10), being moved or substantially deformed during further pushing-in of the head member (20).
  2. Method according to claim 1, characterised in that for filling of the fluid container (10) the filling height (A) is so selected in dependence on a filling quantity tolerance and the fluid displacement volume of the tubular projection (21) that the fluid minimum filling state height (B1) is higher after producing a hermetic closure than the lower fluid opening (24) of the head member (20), wherein the filling height (A) lies between a minimum filling height (A1), which approximately corresponds with the lower edge of the fastening section (13) of the fluid container (10), and a maximum filling height (A2), which approximately corresponds with the middle of the fastening section (13).
  3. Dispenser (1), particularly for pasty material, for carrying out the method according to claim 1 or 2, with a head member (20), which contains a pump chamber (29) and is pushed by its lower end from above into the filled fluid chamber (10) with follow-up piston (14) and which hermetically closes the filling opening (11) of the fluid container (10) by means of a fastening section (13, 27), characterised in that
    a) the head member (20) is constructed as a prolongation of its pump chamber outer wall with a downwardly projecting and downwardly open tubular projection (21), the diameter of which is smaller than the diameter of the outer sleeve (22a) of its fastening section (27) and the fluid displacement volume of which at least corresponds with the volume of the pump chamber (29), and
    b) the fastening section (13, 27) between the head member (20) and the fluid container (10) is, for producing an end setting by pushing of the head member (20) into the fluid container (10) after hermetic closure has been carried out, formed with a displacement path (X) of such length that the fluid displacement volume of the tubular projection (21) is sufficient for partial filling of the head member (20), but at least of the pump chamber (29), and in the end setting the fluid inlet opening (24) of the head member (20) remains immersed in the fluid even in the case of a minimum fluid filling state (C1).
  4. Dispenser (1) according to claim 3, characterised in that an annular groove (25) for reception of a container wall, which surrounds the filling opening (11), of the fluid container (10) is provided at the base side (22) of the head member (20) with the outer sleeve (22a) thereof, wherein the groove depth of the annular groove (25) corresponds with the displacement path, at least the displacement path (X), between the position of the upper edge (13) of the container wall at the hermetic closure for the first time and at the end setting of the head member (20) in the fully assembled state of the dispenser (1).
  5. Dispenser (1) according to claim 4, characterised in that the upper edge (13) of the container wall bears against an axial boundary (26), which is provided at the annular groove (25), in the end setting of the head member (20).
  6. Dispenser (1) according to claim 3, 4 or 5, characterised in that the flow resistance of the flow path through the head member (20) for the fluid is so selected, for example by appropriate resilience of a valve (30) arranged in the flow path, that up to attainment of the hermetic closure hardly any fluid penetrates into the head member (20), but only after attainment of the hermetic closure, wherein this flow resistance in that case is so selected that the fluid penetrates into the head member (20) without the follow-up piston (14) in the fluid container (10) then being moved or substantially deformed.
EP98952620A 1997-09-23 1998-09-22 Method for filling a dispenser and corresponding dispenser Expired - Lifetime EP1015341B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19741957 1997-09-23
DE19741957A DE19741957A1 (en) 1997-09-23 1997-09-23 Container with closure, filled with pharmaceutical paste or fluid
PCT/EP1998/006025 WO1999015424A1 (en) 1997-09-23 1998-09-22 Method for filling a dispenser and corresponding dispenser

Publications (2)

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EP1015341A1 EP1015341A1 (en) 2000-07-05
EP1015341B1 true EP1015341B1 (en) 2004-01-21

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US (1) US6240979B1 (en)
EP (1) EP1015341B1 (en)
DE (2) DE19741957A1 (en)
WO (1) WO1999015424A1 (en)

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GB9408276D0 (en) * 1994-04-26 1994-06-15 Bespak Plc Dispensing pump

Cited By (8)

* Cited by examiner, † Cited by third party
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US8528795B2 (en) 2008-09-01 2013-09-10 Rieke Corporation Liquid dosing devices
US9433960B2 (en) 2008-09-01 2016-09-06 Rieke Corporation Liquid dosing devices
US8556130B2 (en) 2010-01-14 2013-10-15 Rieke Corporation Pump dispensers
US8939323B2 (en) 2010-07-01 2015-01-27 Rieke Corporation Dispensers
US9010584B2 (en) 2010-07-01 2015-04-21 Rieke Corporation Dispensers
US9211559B2 (en) 2010-07-01 2015-12-15 Rieke Corporation Dispensers
US9346068B2 (en) 2010-07-01 2016-05-24 Rieke Corporation Dispensers
US9199258B2 (en) 2012-07-05 2015-12-01 Rieke Corporation Pump dispensers

Also Published As

Publication number Publication date
DE59810639D1 (en) 2004-02-26
WO1999015424A1 (en) 1999-04-01
DE19741957A1 (en) 1999-03-25
US6240979B1 (en) 2001-06-05
EP1015341A1 (en) 2000-07-05

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