EP1344570A2 - Fluid product dispenser - Google Patents

Fluid product dispenser Download PDF

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Publication number
EP1344570A2
EP1344570A2 EP03005224A EP03005224A EP1344570A2 EP 1344570 A2 EP1344570 A2 EP 1344570A2 EP 03005224 A EP03005224 A EP 03005224A EP 03005224 A EP03005224 A EP 03005224A EP 1344570 A2 EP1344570 A2 EP 1344570A2
Authority
EP
European Patent Office
Prior art keywords
application
dispenser
sealing element
opening
cap
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.)
Granted
Application number
EP03005224A
Other languages
German (de)
French (fr)
Other versions
EP1344570A3 (en
EP1344570B1 (en
Inventor
Wolfgang Heukamp
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
Original Assignee
RPC Wiko GmbH and Co KG
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 RPC Wiko GmbH and Co KG filed Critical RPC Wiko GmbH and Co KG
Publication of EP1344570A2 publication Critical patent/EP1344570A2/en
Publication of EP1344570A3 publication Critical patent/EP1344570A3/en
Application granted granted Critical
Publication of EP1344570B1 publication Critical patent/EP1344570B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B05B11/007—Outlet valves actuated by the pressure of the fluid to be sprayed being opened by deformation of a sealing element made of resiliently deformable material, e.g. flaps, skirts, duck-bill 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
    • B05B11/0005—Components or details
    • B05B11/0062—Outlet valves actuated by the pressure of the fluid to be sprayed
    • B05B11/0072—A valve member forming part of an outlet opening
    • 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
    • B05B11/0075—Two outlet valves being placed in a delivery conduit, one downstream the other
    • 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
    • B05B11/1001—Piston pumps
    • 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

Definitions

  • the invention relates to a dispenser for dispensing metered quantities of liquid to pasty products, consisting of a storage container with axially displaceable Tracking piston and arranged on the storage container Dispenser head with a dispenser pump, the pumping chamber input and on the output side is limited by check valves and with one of Dispenser pump downstream discharge channel with a through a sealing element lockable application opening.
  • a dispenser of the type described above is known from EP 0 048 420 B1 known.
  • the dispenser consists of a hollow cylindrical storage tank with a lower open end which is axially displaceable Reciprocating piston is closed.
  • the upper end of the storage container has a top surface with an inlet valve.
  • a dispenser head On this cylindrical storage container, a dispenser head is arranged with a donor pump located in the dispenser head, the pump chamber of which and on the output side is limited by check valves and with a the dispenser pump downstream mouthpiece with application opening.
  • the outflow channel is an automatically closing opening in the outflow direction
  • check valve consists of an elastic sealing lip ring, which in the closed position side sealingly abuts against the cylinder surface of a pin, the inside or arranged in front of the outflow opening.
  • the diameter of the Spigot is larger than the opening diameter of the relaxed sealing lip ring in the application position.
  • dispensers of the aforementioned type with a sealing element for closing the application opening form which is as simple as possible and can be mounted, and that during application of the product, for example during application of the product on the skin, this process is not hindered.
  • the task is with a donor of the type mentioned with the characterizing features of claim 1 solved by the Dispenser head with a dispenser head in the axial direction above concluding Application cap with flat application surface and with in the application area is formed centrally disposed application opening, and the sealing element designed to close the application opening and within the Application surface is arranged, that the sealing element the application opening completely covered and thereby transitionless and edgeless a part the flat application surface forms
  • the inventive design of the dispenser with a dispenser head the top or side closing flat application surface of the Dispensers not only for metered dispensing of liquid to pasty products can be used, but in addition, the flat application surface during the discharge of the product from the center in the application area arranged application opening and then for even distribution the discharged product, for example when applied to the skin become.
  • the application opening from two or more by webs interconnected flow openings educated.
  • an upright Mandrel arranged, whose height up to the upper edge of the application surface enough.
  • the made of an elastic material sealing element, which in his End face having an outlet opening is arranged so that the outlet opening the end face just above the mandrel of the application opening located.
  • the sealing element In the application process, in which the product to be discharged with pressure is pressed up and against the sealing element, the sealing element lifts from the mandrel and thus releases the application opening. The product can now unhindered through the application opening and further through the outlet opening the end face of the sealing element emerge upwards.
  • the sealing element is a cylindrically shaped Cap with its side wall in a diameter of the cap corresponding recess of the application surface is bounced.
  • the recess in the application area is so deep that the side wall of the Fully sealed is sealing element and the upper end face of the sealing element edgeless and seamlessly adapts to the application area this complements.
  • the side wall of the sealing element is due to its elasticity and by at least one annular bead formed on the outside so firmly bounced that during the application process, only the end face can bulge outward inside, the side wall, however, firmly in the recess remains.
  • sealing element Due to the simple design of the sealing element is advantageously a simple Production possible and also easy assembly of the sealing element in given the application area of the donor. Since the production of the sealing element separate from the other construction elements of the dispenser can be carried out commercially available elastic raw materials used For example, thermoplastic elastomers (TPE, also known as Thermoplastic rubber or elastoplasts or thermoplastics), nitrile rubber (nitrile-butadiene rubber NBR), nitrile silicone rubber, silicone or other gummy raw materials.
  • TPE thermoplastic elastomers
  • NBR nitrile rubber
  • silicone rubber silicone or other gummy raw materials.
  • the sealing element is not in one piece, but together with the application cap and thus with the Application surface manufactured in one piece in 2-component injection molding.
  • a dispenser 1 is dosed for dispensing in a vertical section Amounts of liquid to pasty products 30 with an embodiment of the invention the application cap 10 shown.
  • the dispenser 1 consists in his basic building blocks from a storage container 3 for receiving the donating product 30 with a NachGermankolben 8, a donor pump. 4 with pumping chamber 5 and a dispenser head 2 with outflow channel 9 and a Application area 11 with application opening 12.
  • the Dispenser head 2 covered with a cap 14.
  • a sealing pin 18 is inserted from above, in which the outflow channel 9 forms.
  • This sealing pin 18 has the center arranged a mandrel 13, whose upper surface with the application surface 11th flush and at a distance from this mandrel 13 a circumferential sleeve 19th
  • the sealing element 15 arranged within the application surface 11 .
  • the sealing element 15 manufactured together with the application cap 10, so that the sealing element 15 thus represents a part of the application area 11.
  • the application cap 10 with the sealing element 15 has a below the Seal member 15 circumferential collar 19 ', which in the assembly of the application cap 10 is pushed onto the sealing pin 18 in the circumferential sleeve 19 is. This ensures that the sealing element 15 just above the application opening 12 is located.
  • the sealing element 15 has in its center a small outlet opening 16 (Fig. 4), in the mounted state of the application cap 10 exactly on the central Mandrel 13 of the sealing pin 18 is seated and thus below the sealing element 15 located application port 12 closes airtight.
  • the application cap 10 is in a front view (Fig. 2), a sectional front view (Fig. 3) and in a plan view (Fig. 4) highlighted for clarity.
  • FIGS. 2, 3 and 4 the application cap 10 is in a front view (Fig. 2), a sectional front view (Fig. 3) and in a plan view (Fig. 4) highlighted for clarity.
  • the size ratios of sealing element 15th and its small outlet opening 16 with respect to the application surface 11 more clearly.
  • FIG. 5 and 6 is an alternative embodiment of an inventive Application cap 20 and the associated alternative sealing element 25 is shown.
  • the application cap 20 has no right angle to the dispenser axis aligned application surface 11 as the dispenser head 10 of FIG. 1 but the application surface 21 is inclined here to the dispenser axis educated. This is particularly advantageous in terms of application, when the application area 21 is used for direct application to the skin shall be.
  • the sealing the application opening sealing element 25 is in this embodiment not together with the application cap 20, but made in one piece separately.
  • the sealing element 25 consists of a cylindrical formed elastic cap with a round side wall 27 and an end face 25 '.
  • This sealing element 25 is with its round side wall 27 so deep into a corresponding round and deep recess 28 of the application area 21 firmly bounced that its end face 25 'the application surface 21 added seamlessly at this point. So that the sealing element 25 also at the protrusion during the application process its firm seat in the Recess 28 maintains, is outside of the side wall 27 at least one Ring bead 27 'arranged.
  • FIG. 5 the application cap 20 is shown in the closed position.
  • the Sealing element 25 is seated with its outlet opening 26 (FIG. 6) on the mandrel 23 on, whereby the outlet opening 26 and thus also the underlying Application opening 22 is hermetically sealed.
  • FIG. 6 shows the application cap 20 of FIG. 5 in a plan view. Through this view, the proportions are made clearer. There the sealing element 25 is manufactured separately and with its side walls 27 in the Application cap 20 must be anchored, it is much larger Made diameter and thus represents a significant proportion of the application area 21. This proportion is at the application cap 10 with his Sealing element 15 significantly lower, as shown in FIG. 4 can be seen.

Landscapes

  • Closures For Containers (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Coating Apparatus (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Formation And Processing Of Food Products (AREA)

Abstract

The unit (1) for applying measured amounts of liquid or paste products (30) comprises an application head (2) covered an application cap (10) with a plane surface (11) and a central opening (12). The latter is closable by a sealing element (15) whose face fully covers the opening and is flush with the surface (11).

Description

Die Erfindung betrifft einen Spender zur Abgabe dosierter Mengen flüssiger bis pastöser Produkte, bestehend aus einem Speicherbehälter mit axial verschiebbaren Nachführkolben und einem auf dem Speicherbehälter angeordneten Spenderkopf mit einer Spenderpumpe, deren Pumpkammer eingangs- und ausgangsseitig durch Rückschlagventile begrenzt ist sowie mit einem der Spenderpumpe nachgeordneten Ausströmkanal mit einer durch ein Dichtelement verschließbaren Applikationsöffnung.The invention relates to a dispenser for dispensing metered quantities of liquid to pasty products, consisting of a storage container with axially displaceable Tracking piston and arranged on the storage container Dispenser head with a dispenser pump, the pumping chamber input and on the output side is limited by check valves and with one of Dispenser pump downstream discharge channel with a through a sealing element lockable application opening.

Zur dosierten Abgabe flüssiger bis pastöser Produkte sind zum Herauspressen des Produktes aus dem Speicherbehälter durch eine Applikationsöffnung unterschiedliche Vorrichtungen bekannt, die sich bezüglich des konstruktiven Aufbaus und der Funktionsweise grundsätzlich unterscheiden.For metered delivery of liquid to pasty products are to be pressed out the product from the storage container through an application opening different Devices are known which differ in terms of structural design and fundamentally different.

Ein Spender der vorstehend beschriebenen Art ist aus der EP 0 048 420 B1 bekannt. Der Spender besteht aus einem hohlzylindrischen Speicherbehälter mit einem unteren offenen Ende, welches durch einen axial verschiebbaren Nachrückkolben verschlossen ist. Das obere Ende des Speicherbehälters besitzt eine Deckfläche mit einem Einlassventil.A dispenser of the type described above is known from EP 0 048 420 B1 known. The dispenser consists of a hollow cylindrical storage tank with a lower open end which is axially displaceable Reciprocating piston is closed. The upper end of the storage container has a top surface with an inlet valve.

Auf diesem zylindrischen Speicherbehälter ist ein Spenderkopf angeordnet mit einer im Spenderkopf befindlichen Spenderpumpe, deren Pumpkammer eingangs- und ausgangsseitig durch Rückschlagventile begrenzt ist sowie mit einem der Spenderpumpe nachgeordnetem Mundstück mit Applikationsöffnung. On this cylindrical storage container, a dispenser head is arranged with a donor pump located in the dispenser head, the pump chamber of which and on the output side is limited by check valves and with a the dispenser pump downstream mouthpiece with application opening.

Beim dosierten Austrag des zu spendenden Produktes wird durch einen nach unten gerichteten äußeren Druck auf die Spenderpumpe, wodurch sich diese zusammendrückt, das Auslassventil geöffnet und das Einlassventil geschlossen und das in der Pumpkammer befindliche Produkt über die Applikationsöffnung des Mundstücks heraus gedrückt.When dosed discharge of the product to be donated by a directed downward pressure on the donor pump, causing this compresses, the exhaust valve open and the inlet valve closed and the product in the pumping chamber via the application opening pressed out of the mouthpiece.

Beim Loslassen und dem darauffolgenden Entspannen und Ausdehnen der Spenderpumpe wird das Auslassventil geschlossen und das Eingangsventil geöffnet. Der sich durch das Ausdehnen der Spenderpumpe in der Pumpkammer ausbildende Unterdruck bewirkt nun ein Ansaugen von neuem Produkt aus dem Speicherbehälter durch das Einlassventil der Deckfläche, wobei sich gleichzeitig der Nachlaufkolben weiter in Richtung zur Deckfläche verschiebt. Dieser Vorgang kann solange wiederholt werden, bis der Speicherbehälter leer und der Nachrückkolben Kontakt mit dem Deckfläche hat.When you release and then relax and expand the Dispenser pump, the outlet valve is closed and the input valve open. The result of the expansion of the donor pump in the pumping chamber forming negative pressure now causes a suction of new product the storage container through the inlet valve of the top surface, wherein at the same time the follower piston moves further towards the top surface. This process can be repeated until the storage container is empty and the follower piston makes contact with the top surface.

Aus dem deutschen Gebrauchsmuster G 92 12 242.6, in dem ein ähnlicher Spender beschrieben wird, ist bekannt, die Mündung des Ausströmkanals der Pumpkammer mit einem losen Stopfen zu verschließen. Bei einem Spender dieser Art besteht aber die Gefahr, dass der die Ausströmöffnung verschließende, lose Stopfen verloren geht oder vom Anwender bereits nach einmaligem Gebrauch des Spenders versehentlich weggeworfen wird, so dass in den unverschlossenen Ausströmkanal Schmutz oder Bakterien eindringen und sich innerhalb des Spenders ausbreiten können. Zudem besteht die Möglichkeit, dass ein auf den Boden gefallener Stopfen von einem sorglosen Anwender ohne Reinigung wieder in den Ausströmkanal eingesetzt wird. Ein weiter Nachteil bei der Verwendung eines Stopfens besteht darin, dass beim Einsetzen des Stopfens eine kleine Produktmenge seitlich des Stopfens heraus gedrückt wird und den Spender bzw. die Hände des Anwenders benetzt. From the German utility model G 92 12 242.6, in which a similar Dispenser is described, the mouth of the discharge channel of the Close the pumping chamber with a loose stopper. With a donor However, there is a risk of this type closing off the outflow opening, loose plug is lost or the user already after one Use of the dispenser is accidentally thrown away, leaving in the unlocked Outflow channel dirt or bacteria and invade within the donor. There is also the possibility that a plug dropped on the floor by a careless user without Cleaning is used again in the discharge channel. Another disadvantage when using a plug is that when inserting the Stopfens a small amount of product is pushed out of the side of the plug and wet the dispenser or the hands of the user.

Um diese geschilderten Nachteile zu beheben, wird in dem deutschen Gebrauchsmuster G 94 19 268.5 vorgeschlagen, an der seitlichen Mündung des Ausströmkanals ein sich in Ausströmrichtung öffnendes selbsttätig schließendes Rückschlagventil als Mündungsventil anzuordnen. Das Mündungsventil besteht dabei aus einem elastischen Dichtlippenring, der in der Schließstellung seitlich gegen die Zylindermantelfläche eines Zapfens dichtend anliegt, der innerhalb oder vor der Ausströmöffnung angeordnet ist. Der Durchmesser des Zapfens ist dabei größer als der Öffnungsdurchmesser des entspannten Dichtlippenrings in der Applikationsstellung.To remedy these disadvantages, is in the German Utility Model G 94 19 268.5 proposed at the lateral mouth the outflow channel is an automatically closing opening in the outflow direction To arrange check valve as a mouth valve. The outlet valve consists of an elastic sealing lip ring, which in the closed position side sealingly abuts against the cylinder surface of a pin, the inside or arranged in front of the outflow opening. The diameter of the Spigot is larger than the opening diameter of the relaxed sealing lip ring in the application position.

Ausgehend von diesem Stand der Technik ist es Aufgabe der Erfindung, Spender der genannten Art mit einem Dichtelement zum Verschluss der Applikationsöffnung auszubilden, das möglichst einfach ausgebildet und montierbar ist, und das bei der Applikation des Produkts, beispielsweise bei der Auftragung des Produkts auf der Haut, diesen Vorgang nicht behindert.Based on this prior art, it is an object of the invention, dispensers of the aforementioned type with a sealing element for closing the application opening form, which is as simple as possible and can be mounted, and that during application of the product, for example during application of the product on the skin, this process is not hindered.

Die gestellte Aufgabe wird bei einem Spender der eingangs genannten Art mit den kennzeichnenden Merkmalen des Anspruchs 1 dadurch gelöst, dass der Spenderkopf mit einer den Spenderkopf in Axialrichtung oben abschließenden Applikationskappe mit ebener Applikationsfläche und mit in der Applikationsfläche mittig angeordneter Applikationsöffnung ausgebildet ist, und das Dichtelement zum Verschluss der Applikationsöffnung so ausgebildet und innerhalb der Applikationsfläche angeordnet ist, dass das Dichtelement die Applikationsöffnung vollständig überdeckt und dabei übergangslos und kantenlos einen Teil der ebenen Applikationsfläche bildetThe task is with a donor of the type mentioned with the characterizing features of claim 1 solved by the Dispenser head with a dispenser head in the axial direction above concluding Application cap with flat application surface and with in the application area is formed centrally disposed application opening, and the sealing element designed to close the application opening and within the Application surface is arranged, that the sealing element the application opening completely covered and thereby transitionless and edgeless a part the flat application surface forms

Vorteilhafte Ausgestaltungen der Erfindung sind in den Unteransprüchen angegeben. Advantageous embodiments of the invention are specified in the subclaims.

Durch die erfindungsgemäße Ausbildung des Spenders mit einer den Spenderkopf oben oder seitlich abschließenden ebenen Applikationsfläche kann der Spender nicht nur zur dosierten Abgabe von flüssigen bis pastösen Produkten verwendet werden, sondern zusätzlich kann die ebene Applikationsfläche während des Austrags des Produkts aus der mittig in der Applikationsfläche angeordneten Applikationsöffnung und danach zum gleichmäßigen Verteilen des ausgetragenen Produkts, beispielsweise beim Auftrag auf die Haut, genutzt werden.The inventive design of the dispenser with a dispenser head the top or side closing flat application surface of the Dispensers not only for metered dispensing of liquid to pasty products can be used, but in addition, the flat application surface during the discharge of the product from the center in the application area arranged application opening and then for even distribution the discharged product, for example when applied to the skin become.

Diese mögliche Verwendung der ebenen Applikationsfläche macht es erforderlich, dass diese Fläche auch eben bleibt, weshalb das Dichtelement, welches die Applikationsöffnung vollständig überdeckt, sich übergangslos und kantenlos der Applikationsfläche anpasst und somit einen Teil der Applikationsfläche bildet.This possible use of the flat application surface makes it necessary that this surface also remains flat, which is why the sealing element, which the application opening completely covered, seamless and edgeless the application surface adapts and thus forms part of the application area.

Nach einer vorteilhaften Ausgestaltung des Spenders wird die Applikationsöffnung aus zwei oder mehr durch Stege miteinander verbundene Durchströmöffnungen gebildet. Im Mittelpunkt der Applikationsöffnung ist ein aufrecht stehender Dorn angeordnet, dessen Höhe bis zur Oberkante der Applikationsfläche reicht. Das aus einem elastischen Material gefertigte Dichtelement, das in seiner Stirnfläche eine Auslassöffnung aufweist, ist so angeordnet, dass die Auslassöffnung der Stirnfläche sich genau oberhalb des Dorns der Applikationsöffnung befindet.According to an advantageous embodiment of the dispenser, the application opening from two or more by webs interconnected flow openings educated. At the center of the application opening is an upright Mandrel arranged, whose height up to the upper edge of the application surface enough. The made of an elastic material sealing element, which in his End face having an outlet opening is arranged so that the outlet opening the end face just above the mandrel of the application opening located.

In der Schließstellung, bei der das elastische Dichtelement sich in seiner Ausgangslage befindet, liegt die Stirnfläche des Dichtelements so auf der Applikationsöffnung auf, dass ihre Auslassöffnung auf dem Dorn aufliegt und damit die Applikationsöffnung luftdicht verschlossen ist. In the closed position, in which the elastic sealing element is in its initial position is located, the end face of the sealing element is located on the application opening on that their outlet opening rests on the mandrel and thus the Application opening is hermetically sealed.

Beim Applikationsvorgang, bei dem mit Druck das auszutragende Produkt nach oben und gegen das Dichtelement gedrückt wird, hebt sich das Dichtelement vom Dorn ab und gibt somit die Applikationsöffnung frei. Das Produkt kann nun ungehindert durch die Applikationsöffnung und weiter durch die Auslassöffnung der Stirnfläche des Dichtelements nach oben austreten.In the application process, in which the product to be discharged with pressure is pressed up and against the sealing element, the sealing element lifts from the mandrel and thus releases the application opening. The product can now unhindered through the application opening and further through the outlet opening the end face of the sealing element emerge upwards.

In einer Ausbildung der Erfindung ist das Dichtelement eine zylinderförmig ausgebildete Kappe, die mit ihrer Seitenwand in eine dem Durchmesser der Kappe entsprechende Ausnehmung der Applikationsfläche eingeprellt ist. Die Ausnehmung in der Applikationsfläche ist dabei so tief, das die Seitenwand des Dichtelements vollständig eingeprellt ist und die obere Stirnfläche des Dichtelements sich kantenlos und übergangslos der Applikationsfläche anpasst bzw. diese ergänzt. Die Seitenwand des Dichtelements ist dabei auf Grund ihrer Elastizität und durch mindestens einen an der Außenseite ausgebildeten Ringwulst so fest eingeprellt, dass beim Applikationsvorgang sich nur die Stirnfläche innen nach außen vorwölben kann, die Seitenwand dagegen fest in der Ausnehmung verbleibt.In one embodiment of the invention, the sealing element is a cylindrically shaped Cap with its side wall in a diameter of the cap corresponding recess of the application surface is bounced. The recess in the application area is so deep that the side wall of the Fully sealed is sealing element and the upper end face of the sealing element edgeless and seamlessly adapts to the application area this complements. The side wall of the sealing element is due to its elasticity and by at least one annular bead formed on the outside so firmly bounced that during the application process, only the end face can bulge outward inside, the side wall, however, firmly in the recess remains.

Durch die einfache Ausgestaltung des Dichtelements ist mit Vorteil eine einfache Herstellung möglich und auch eine einfache Montage des Dichtelements in die Applikationsfläche des Spenders gegeben. Da die Herstellung des Dichtelements getrennt von den übrigen Konstruktionselementen des Spenders durchgeführt werden kann, können handelsübliche elastische Rohstoffe verwendet werden, beispielsweise thermoplastische Elastomere (TPE, auch als Thermoplast-Kautschuk oder Elastoplaste oder Thermoplaste bekannt), Nitrilkautschuk (nitrile-butadiene rubber NBR), Nitrilsiliconkautschuk, Silikon oder andere gummiartige Rohstoffe. Due to the simple design of the sealing element is advantageously a simple Production possible and also easy assembly of the sealing element in given the application area of the donor. Since the production of the sealing element separate from the other construction elements of the dispenser can be carried out commercially available elastic raw materials used For example, thermoplastic elastomers (TPE, also known as Thermoplastic rubber or elastoplasts or thermoplastics), nitrile rubber (nitrile-butadiene rubber NBR), nitrile silicone rubber, silicone or other gummy raw materials.

Nach einer weiteren Ausgestaltung der Erfindung ist das Dichtelement nicht einstückig, sondern gemeinsam mit der Applikationskappe und damit mit der Applikationsfläche einteilig im 2-Komponenten-Spritzguss gefertigt.According to a further embodiment of the invention, the sealing element is not in one piece, but together with the application cap and thus with the Application surface manufactured in one piece in 2-component injection molding.

Bei sonst gleicher Wirkungsweise wie beim einstückig gefertigten separaten Dichtelement ergibt sich durch diese gemeinsame Fertigung der Vorteil, dass die separate Fertigung und die Montage des Dichtelements in die Applikationsfläche entfällt. Nachteilig ist allerdings, dass nur Rohstoffe zur Fertigung des Dichtelements verwendet werden können, die eine haftende Verbindung mit dem Rohstoff der Applikationskappe eingehen. Damit beschränkt sich die mögliche Rohstoffauswahl auf alle die Rohstoffe, die im 2-Komponenten-Spritzguss verwendet werden können, beispielsweise thermoplastische Elastomere (TPE).With otherwise the same effect as the one-piece manufactured separate Sealing element results from this joint production of the advantage that the separate production and assembly of the sealing element in the application area eliminated. The disadvantage, however, is that only raw materials for the production of Sealing element can be used which has an adhesive connection with enter the raw material of the application cap. This limits the possible Raw material selection on all the raw materials used in 2-component injection molding can be used, for example thermoplastic elastomers (TPE).

Weitere Vorteile, Merkmale und Eigenschaften der Erfindung werden nachfolgend an in schematischen Zeichnungsfiguren dargestellten Ausführungsbeispielen näher erläutert.Further advantages, features and characteristics of the invention will become apparent below to exemplary embodiments illustrated in schematic drawing figures explained in more detail.

Es zeigen:

Fig. 1
einen Spender in einem Vertikalschnitt,
Fig. 2
die Applikationskappe der Fig. 1 in einer Vorderansicht,
Fig. 3
die Applikationskappe der Fig. 2 in einem Vertikalschnitt,
Fig. 4
eine Draufsicht auf Fig. 2,
Fig. 5
eine weitere Ausführungsform einer Applikationskappe in einem Vertikalschnitt,
Fig. 6
eine Draufsicht auf Fig. 5.
Show it:
Fig. 1
a donor in a vertical section,
Fig. 2
the application cap of Fig. 1 in a front view,
Fig. 3
the application cap of Fig. 2 in a vertical section,
Fig. 4
a top view of Fig. 2,
Fig. 5
a further embodiment of an application cap in a vertical section,
Fig. 6
a plan view of Fig. 5th

In den Figuren 1 ist in einem Vertikalschnitt ein Spender 1 zur Abgabe dosierter Mengen flüssiger bis pastöser Produkte 30 mit einer erfindungsgemäßen Ausbildungsform der Applikationskappe 10 dargestellt. Der Spender 1 besteht in seinen Grundbausteinen aus einem Speicherbehälter 3 zur Aufnahme des zu spendendem Produktes 30 mit einem Nachführkolben 8, einer Spenderpumpe 4 mit Pumpkammer 5 und einem Spenderkopf 2 mit Ausströmkanal 9 und einer Applikationsfläche 11 mit Applikationsöffnung 12. Bei Nichtgebrauch ist der Spenderkopf 2 mit einer Verschlusskappe 14 bedeckt.In Figures 1, a dispenser 1 is dosed for dispensing in a vertical section Amounts of liquid to pasty products 30 with an embodiment of the invention the application cap 10 shown. The dispenser 1 consists in his basic building blocks from a storage container 3 for receiving the donating product 30 with a Nachführkolben 8, a donor pump. 4 with pumping chamber 5 and a dispenser head 2 with outflow channel 9 and a Application area 11 with application opening 12. When not in use, the Dispenser head 2 covered with a cap 14.

Innerhalb des Spenderkopfes 2 ist ein Dichtzapfen 18 von oben eingeschoben, in dem sich der Ausströmkanal 9 bildet. Dieser Dichtzapfen 18 besitzt mittig angeordnet einen Dorn 13, dessen obere Fläche mit der Applikationsfläche 11 bündig abschließt und mit Abstand von diesem Dorn 13 eine umlaufende Büchse 19.Within the dispenser head 2, a sealing pin 18 is inserted from above, in which the outflow channel 9 forms. This sealing pin 18 has the center arranged a mandrel 13, whose upper surface with the application surface 11th flush and at a distance from this mandrel 13 a circumferential sleeve 19th

Innerhalb der Applikationsfläche 11 ist in einer Ausnehmung 17 das Dichtelement 15 angeordnet. Im dargestellten Ausführungsbeispiel ist das Dichtelement 15 gemeinsam mit der Applikationskappe 10 gefertigt, so dass das Dichtelement 15 somit einen Teil der Applikationsfläche 11 darstellt.Within the application surface 11 is in a recess 17, the sealing element 15 arranged. In the illustrated embodiment, the sealing element 15 manufactured together with the application cap 10, so that the sealing element 15 thus represents a part of the application area 11.

Die Applikationskappe 10 mit dem Dichtelement 15 besitzt einen unterhalb des Dichtelements 15 umlaufenden Kragen 19', der bei der Montage der Applikationskappe 10 auf den Dichtzapfen 18 in die umlaufende Büchse 19 eingeschoben ist. Hierdurch ist gewährleistet, dass sich das Dichtelement 15 genau oberhalb der Applikationsöffnung 12 befindet.The application cap 10 with the sealing element 15 has a below the Seal member 15 circumferential collar 19 ', which in the assembly of the application cap 10 is pushed onto the sealing pin 18 in the circumferential sleeve 19 is. This ensures that the sealing element 15 just above the application opening 12 is located.

Das Dichtelement 15 besitzt in seiner Mitte eine kleine Auslassöffnung 16 (Fig. 4), die im montierten Zustand der Applikationskappe 10 genau auf dem zentralen Dorn 13 des Dichtzapfens 18 aufsitzt und damit die unterhalb des Dichtelementes 15 befindliche Applikationsöffnung 12 luftdicht verschließt.The sealing element 15 has in its center a small outlet opening 16 (Fig. 4), in the mounted state of the application cap 10 exactly on the central Mandrel 13 of the sealing pin 18 is seated and thus below the sealing element 15 located application port 12 closes airtight.

Beim Applikationsvorgang wird durch die Pumpkammer 5 der Spenderpumpe 4 bei geschlossenem Einlassventil 6 und geöffnetem Auslassventil 7 das Produkt 30 durch den Ausströmkanal 9 im Dichtzapfen 18 nach oben gedrückt. Das Produkt 30 drückt dabei von unten gegen das Dichtelement 15, wodurch sich dieses mittig nach außen vorwölbt und sich vom Dorn 13 abhebt. Die kleine mittige Auslassöffnung 16 (Fig. 4) des Dichtelementes 15 wird dadurch freigegeben und das Produkt 30 kann nun ungehindert durch die Applikationsöffnung 12 und dann durch die Auslassöffnung 16 nach außen austreten.During the application process by the pumping chamber 5 of the donor pump 4th with closed inlet valve 6 and open outlet valve 7, the product 30 pushed through the discharge channel 9 in the sealing pin 18 upwards. The Product 30 presses from below against the sealing element 15, resulting in this bulges outward in the center and lifts off from the thorn 13. The little one central outlet opening 16 (Fig. 4) of the sealing element 15 is thereby released and the product 30 can now pass unhindered through the application opening 12 and then exit through the outlet opening 16 to the outside.

In den Figuren 2, 3 und 4 ist die Applikationskappe 10 in einer Vorderansicht (Fig. 2), einer geschnittenen Vorderansicht (Fig. 3) und in einer Draufsicht (Fig. 4) zur besseren Übersicht einzeln herausgestellt. Insbesondere werden durch die Einzeldarstellung aus Figur 4 die Größenverhältnisse von Dichtelement 15 und ihrer kleinen Auslassöffnung 16 in Bezug zur Applikationsfläche 11 deutlicher.In FIGS. 2, 3 and 4, the application cap 10 is in a front view (Fig. 2), a sectional front view (Fig. 3) and in a plan view (Fig. 4) highlighted for clarity. In particular, by the individual representation of Figure 4, the size ratios of sealing element 15th and its small outlet opening 16 with respect to the application surface 11 more clearly.

In den Figuren 5 und 6 ist eine alternative Ausbildungsform einer erfindungsgemäßen Applikationskappe 20 und das dieser zugeordnete alternative Dichtelement 25 dargestellt. Die Applikationskappe 20 besitzt keine im rechten Winkel zur Spenderachse ausgerichtete Applikationsfläche 11 wie der Spenderkopf 10 der Fig. 1 sondern die Applikationsfläche 21 ist hier zur Spenderachse geneigt ausgebildet. Dies ist insbesondere dann anwendungsmäßig von Vorteil, wenn die Applikationsfläche 21 zur direkten Auftragung auf die Haut genutzt werden soll.In Figures 5 and 6 is an alternative embodiment of an inventive Application cap 20 and the associated alternative sealing element 25 is shown. The application cap 20 has no right angle to the dispenser axis aligned application surface 11 as the dispenser head 10 of FIG. 1 but the application surface 21 is inclined here to the dispenser axis educated. This is particularly advantageous in terms of application, when the application area 21 is used for direct application to the skin shall be.

Das die Applikationsöffnung verschließende Dichtelement 25 ist in diesem Ausführungsbeispiel nicht gemeinsam mit der Applikationskappe 20, sondern einstückig separat gefertigt. Das Dichtelement 25 besteht aus einer zylinderförmig ausgebildeten elastischen Kappe mit einer runden Seitenwand 27 und einer Stirnfläche 25'. Dieses Dichtelement 25 ist mit seiner runden Seitenwand 27 so tief in eine entsprechend runde und tiefe Ausnehmung 28 der Applikationsfläche 21 fest eingeprellt, dass seine Stirnfläche 25' die Applikationsfläche 21 an dieser Stelle übergangslos ergänzt. Damit das Dichtelement 25 auch bei der Vorwölbung während des Applikationsvorgangs seinen festen Sitz in der Ausnehmung 28 beibehält, ist außen an der Seitenwand 27 mindestens ein Ringwulst 27' angeordnet.The sealing the application opening sealing element 25 is in this embodiment not together with the application cap 20, but made in one piece separately. The sealing element 25 consists of a cylindrical formed elastic cap with a round side wall 27 and an end face 25 '. This sealing element 25 is with its round side wall 27 so deep into a corresponding round and deep recess 28 of the application area 21 firmly bounced that its end face 25 'the application surface 21 added seamlessly at this point. So that the sealing element 25 also at the protrusion during the application process its firm seat in the Recess 28 maintains, is outside of the side wall 27 at least one Ring bead 27 'arranged.

In Fig. 5 ist die Applikationskappe 20 in der Schließstellung dargestellt. Das Dichtelement 25 sitzt mit seiner Auslassöffnung 26 (Fig. 6) auf dem Dorn 23 auf, wodurch die Auslassöffnung 26 und damit auch die darunter befindliche Applikationsöffnung 22 luftdicht verschlossen ist.In Fig. 5, the application cap 20 is shown in the closed position. The Sealing element 25 is seated with its outlet opening 26 (FIG. 6) on the mandrel 23 on, whereby the outlet opening 26 and thus also the underlying Application opening 22 is hermetically sealed.

In Fig. 6 ist die Applikationskappe 20 der Fig. 5 in einer Draufsicht dargestellt. Durch diese Ansicht werden die Größenverhältnisse klarer herausgestellt. Da das Dichtelement 25 separat gefertigt und mit seinen Seitenwänden 27 in der Applikationskappe 20 verankert werden muss, ist es mit deutlich größerem Durchmesser ausgeführt und stellt somit einen erheblichen Anteil an der Applikationsfläche 21. Dieser Anteil ist bei der Applikationskappe 10 mit seinem Dichtelement 15 deutlich geringer, wie der Fig. 4 zu entnehmen ist.FIG. 6 shows the application cap 20 of FIG. 5 in a plan view. Through this view, the proportions are made clearer. There the sealing element 25 is manufactured separately and with its side walls 27 in the Application cap 20 must be anchored, it is much larger Made diameter and thus represents a significant proportion of the application area 21. This proportion is at the application cap 10 with his Sealing element 15 significantly lower, as shown in FIG. 4 can be seen.

Die dargestellten Ausführungsbeispiele stellen nicht zwingend die einzig möglichen Ausbildungen der Erfindung dar. Es können auch andere Spendertypen mit anderen Spenderkopfsystemen miteinander kombiniert werden, sofern diese eine Applikationsfläche aufweisen und die erfindungsgemäße Ausbildung der Dichtelemente sinnvoll dadurch beibehalten werden kann. The illustrated embodiments do not necessarily represent the only possible Embodiments of the invention. There may be other donor types combined with other dispenser head systems, if any have an application surface and the inventive design the sealing elements can be meaningfully maintained.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
Spenderdonor
22
Spenderkopfdispenser head
33
Speicherbehälterstorage container
44
Spenderpumpedispenser pump
55
Pumpkammerpumping chamber
66
Einlassventilintake valve
77
Auslassventiloutlet valve
88th
Nachführkolbentracking piston
99
Ausströmkanaloutflow
10, 2010, 20
Applikationskappeapplication cap
11, 2111, 21
Applikationsflächeapplication surface
12, 2212, 22
Applikationsöffnungapplication opening
13, 2313, 23
Dornmandrel
1414
Verschlusskappecap
15, 2515, 25
Dichtelementsealing element
16, 2616, 26
Auslassöffnung im DichtelementOutlet opening in the sealing element
1717
Ausnehmung in ApplikationsflächeRecess in application area
1818
Dichtzapfensealing plug
19, 19'19, 19 '
Umlaufende Büchse, KragenOuter sleeve, collar
25'25 '
Stirnflächeface
2727
Seitenwand von 25Sidewall of 25
27'27 '
Ringwulsttorus
2828
Ausnehmungrecess
3030
Produktproduct

Claims (8)

Spender (1) zur Abgabe dosierter Mengen flüssiger bis pastöser Produkte (30), bestehend aus einem Speicherbehälter (3) mit axial verschiebbarem Nachführkolben (8) und einem auf dem Speicherbehälter (3) angeordneten Spenderkopf (2) mit einer Spenderpumpe (4), deren Pumpkammer (5) eingangs- und ausgangsseitig durch Rückschlagventile (6, 7) begrenzt ist sowie mit einem der Spenderpumpe (4) nachgeordneten Ausströmkanal (9) mit einer durch ein Dichtelement (15, 25) verschließbaren Applikationsöffnung (12, 22), dadurch gekennzeichnet, dass der Spenderkopf (2) mit einer den Spenderkopf (2) in Axialrichtung oben abschließenden Applikationskappe (10, 20) mit ebener Applikationsfläche (11, 21) und mit in der Applikationsfläche (11, 21) mittig angeordneter Applikationsöffnung (12, 22) ausgebildet ist, und das Dichtelement (15, 25) zum Verschluss der Applikationsöffnung (12, 22) so ausgebildet und innerhalb der Applikationsfläche (11, 21) angeordnet ist, dass das Dichtelement (15, 25) mit seiner Stirnfläche die Applikationsöffnung (12, 22) vollständig überdeckt und dabei übergangslos und kantenlos einen Teil der ebenen Applikationsfläche (11, 21) bildet. Dispenser (1) for dispensing metered quantities of liquid to pasty products (30), comprising a storage container (3) with axially displaceable Nachführkolben (8) and a on the storage container (3) arranged dispenser head (2) with a dispenser pump (4), the pumping chamber (5) on the input and output side by check valves (6, 7) is limited and with one of the dispenser pump (4) downstream discharge channel (9) with a by a sealing element (15, 25) closable application opening (12, 22), characterized marked that the dispenser head (2) is designed with an application cap (10, 20) which ends the dispenser head (2) in the axial direction with a flat application surface (11, 21) and with an application opening (12, 22) arranged centrally in the application surface (11, 21) . and the sealing element (15, 25) designed to close the application opening (12, 22) and arranged within the application surface (11, 21), that the sealing element (15, 25) with its end face the application opening (12, 22) completely covered and thereby seamless and edgeless forms a part of the planar application surface (11, 21). Spender (1) nach Anspruch 1, dadurch gekennzeichnet, dass die Applikationsöffnung (12, 22) aus zwei oder mehr durch Stege miteinander verbundene Durchströmöffnungen gebildet wird und im Mittelpunkt der Applikationsöffnung (12, 22) mit einem aufrecht stehenden Dorn (13, 23) ausgebildet ist, dessen Höhe bis zur Oberkante der Applikationsfläche (11, 21) reicht.Dispenser (1) according to Claim 1, characterized in that the application opening (12, 22) is formed from two or more throughflow openings connected to one another by webs and at the center of the application opening (12, 22) with an upright mandrel (13, 23). is formed, the height of which extends to the upper edge of the application surface (11, 21). Spender (1) nach Anspruch 2, dadurch gekennzeichnet, dass das als Rückschlagventil wirkende Dichtelement (15, 25) aus einem elastischen Material gefertigt ist und in seiner Stirnfläche mittig eine Auslassöffnung (16, 26) besitzt, die in der Schließstellung des Spenders (1) auf den innerhalb der Applikationsöffnung (12, 22) angeordneten feststehenden Dorn (13, 23) luftdicht aufliegt und die in der Applikationsstellung des Spenders (1) auf Grund des Pumpendrucks, der die Stirnfläche mittig nach außen vorwölbt, sich von diesem Dorn nach oben abhebt und die Applikationsöffnung (12, 22) freigibt.Dispenser (1) according to claim 2, characterized in that the sealing element acting as a check valve (15, 25) is made of an elastic material and in the center of its end face an outlet opening (16, 26) which in the closed position of the dispenser (1 ) on the inside of the application opening (12, 22) arranged fixed mandrel (13, 23) rests airtight and in the application position of the dispenser (1) due to the pump pressure, which bulges the end face centered outwardly from this mandrel upwards lifts off and the application opening (12, 22) releases. Spender (1) nach Anspruch 1, 2 oder 3, dadurch gekennzeichnet, dass das Dichtelement (25) eine zylinderförmig ausgebildete elastische Kappe ist, die mit ihrer runden Seitenwand (27) so tief in eine entsprechend runde und tiefe Ausnehmung (28) der Applikationsfläche (21) eingeprellt ist, dass die Stirnfläche (25') des Dichtelementes (25) die Applikationsfläche (21) an dieser Stelle übergangslos ergänzt.Dispenser (1) according to claim 1, 2 or 3, characterized in that the sealing element (25) is a cylindrically shaped elastic cap, with its round side wall (27) so deep into a corresponding round and deep recess (28) of the application area (21) is bounced that the end face (25 ') of the sealing element (25) the transition surface (21) at this point seamlessly. Spender (1) nach Anspruch 4, dadurch gekennzeichnet, dass das Dichtelement (25) zur Aufrechterhaltung eines festen Sitzes nach dem Einprellen an der Außenseite seiner Seitenwand (27) mit mindestens einem Ringwulst (27') ausgebildet ist.Dispenser (1) according to claim 4, characterized in that the sealing element (25) for maintaining a tight fit after the bouncing on the outside of its side wall (27) with at least one annular bead (27 ') is formed. Spender (1) nach Anspruch 5, dadurch gekennzeichnet, dass das Dichtelement (25) aus einem elastischen Rohstoff, beispielsweise thermoplastischen Elastomeren (TPE), Nitrilkautschuk (NBR), Silikon oder anderen gummiartigen Rohstoffen, gefertigt ist.Dispenser (1) according to claim 5, characterized in that the sealing element (25) is made of an elastic raw material, for example thermoplastic elastomers (TPE), nitrile rubber (NBR), silicone or other rubbery raw materials. Spender (1) nach Anspruch 1, 2 oder 3, dadurch gekennzeichnet, dass das Dichtelement (15) einteilig mit der Applikationskappe (10) im 2-Komponenten-Spritzguss gefertigt ist.Dispenser (1) according to claim 1, 2 or 3, characterized in that the sealing element (15) is made in one piece with the application cap (10) in 2-component injection molding. Spender (1) nach Anspruch 7, dadurch gekennzeichnet, dass das Dichtelement (15) mit der Applikationskappe (10) aus den im 2-Komponenten-Spritzguss verwendbaren Rohstoffen gefertigt ist, beispielsweise thermoplastischen Elastomeren (TPE).Dispenser (1) according to claim 7, characterized in that the sealing element (15) with the application cap (10) is made from the raw materials usable in 2-component injection molding, for example thermoplastic elastomers (TPE).
EP03005224A 2002-03-11 2003-03-10 Fluid product dispenser Expired - Lifetime EP1344570B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE20203882U DE20203882U1 (en) 2002-03-11 2002-03-11 Dispenser for the application of flowable products
DE20203882U 2002-03-11

Publications (3)

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EP1344570A2 true EP1344570A2 (en) 2003-09-17
EP1344570A3 EP1344570A3 (en) 2008-03-05
EP1344570B1 EP1344570B1 (en) 2009-12-02

Family

ID=7968825

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EP03005224A Expired - Lifetime EP1344570B1 (en) 2002-03-11 2003-03-10 Fluid product dispenser

Country Status (6)

Country Link
US (1) US6968981B2 (en)
EP (1) EP1344570B1 (en)
AT (1) ATE450317T1 (en)
DE (2) DE20203882U1 (en)
DK (1) DK1344570T3 (en)
ES (1) ES2336201T3 (en)

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ES2826407T3 (en) * 2016-07-18 2021-05-18 Rpc Bramlage Gmbh Dispenser for liquid to pasty doughs
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Also Published As

Publication number Publication date
ES2336201T3 (en) 2010-04-09
US6968981B2 (en) 2005-11-29
ATE450317T1 (en) 2009-12-15
EP1344570A3 (en) 2008-03-05
DE50312168D1 (en) 2010-01-14
US20030231923A1 (en) 2003-12-18
DE20203882U1 (en) 2003-04-17
EP1344570B1 (en) 2009-12-02
DK1344570T3 (en) 2010-03-01

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