EP0570965B1 - Package for flowable products - Google Patents

Package for flowable products Download PDF

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Publication number
EP0570965B1
EP0570965B1 EP93108217A EP93108217A EP0570965B1 EP 0570965 B1 EP0570965 B1 EP 0570965B1 EP 93108217 A EP93108217 A EP 93108217A EP 93108217 A EP93108217 A EP 93108217A EP 0570965 B1 EP0570965 B1 EP 0570965B1
Authority
EP
European Patent Office
Prior art keywords
dispensing head
opening
carrier
dispensing
package
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
EP93108217A
Other languages
German (de)
French (fr)
Other versions
EP0570965A1 (en
Inventor
Jens-Heinrich Kersten
Detlef Schmitz
Peter Runte
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.)
Aptar Dortmund GmbH
Original Assignee
Perfect Valois Ventil GmbH
Perfect Ventil GmbH
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 Perfect Valois Ventil GmbH, Perfect Ventil GmbH filed Critical Perfect Valois Ventil GmbH
Publication of EP0570965A1 publication Critical patent/EP0570965A1/en
Application granted granted Critical
Publication of EP0570965B1 publication Critical patent/EP0570965B1/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
    • B05B11/04—Deformable containers producing the flow, e.g. squeeze bottles
    • B05B11/042—Deformable containers producing the flow, e.g. squeeze bottles the spray being effected by a gas or vapour flow in the nozzle, spray head, outlet or dip tube
    • B05B11/043—Deformable containers producing the flow, e.g. squeeze bottles the spray being effected by a gas or vapour flow in the nozzle, spray head, outlet or dip tube designed for spraying a liquid

Definitions

  • the invention relates to a package with a hand pump for dispensing flowable filling material, with a filling material container on which a dispensing head is movably arranged for actuating the pump, which is provided with an outlet opening which communicates with the interior of the filling material container via a product channel and a riser pipe stands, wherein a compression spring element forms an integrated part of the filling container and is effective in the sense of stretching the same in its longitudinal direction.
  • Such a package is known from FR-A-1 298 401.
  • the invention has for its object to improve packs of the known type mentioned above so that a comparable to previously known aerosol packs, high quality of the spray jet is achieved, a movable in the direction of the main axis of the pack spray head allows a more convenient operation, the spray direction approximately perpendicular a closure runs to the main axis of the pack for transporting the pack without an additional protective cap is integrated, by adapting the riser pipe and nozzle, it can be adapted to fill goods with a wide range of properties, e.g. liquids with different viscosities, as well as creams and powders, the entire pack can only be made from one material in order to ensure good recyclability is and can optionally be designed as a reusable package.
  • a carrier for the dispensing head is placed tightly on the opening of the product container and is provided with a head plate, on the underside of which a riser pipe nipple is arranged eccentrically to the main axis of the product container, with which the upper end of the riser pipe is connected and whose product channel extends through the head plate;
  • a dispensing valve is assigned to the riser pipe nipple, which is open at a pressure in the product container which is above the pressure of the outside atmosphere;
  • the top plate is provided with a through opening for working air and with a through opening for ventilation air, which are arranged eccentrically to the main axis of the product container;
  • the dispensing head on the top of the carrier is tight, but rotatably arranged between a closed position and an open position and has on its underside an inlet connector with a product channel, which is aligned with the product channel of the riser pipe nipple in the dispensing position of the dispenser head and which radially extends from
  • a dispensing head 12 is movably arranged on a filling material container 11 for actuating the pump.
  • the dispensing head 12 is provided with an outlet opening 48, which is connected to the interior of the product container 11 via a product channel 14, 27, 40 and a riser pipe 15.
  • a compression spring element 16 is an integral part of the wall 17 of the product container 11 and is shaped in the manner of an accordion bellows.
  • the compression spring element 16 is in the sense of an extension of the container wall 17 above the Compression spring element 16 effective in both directions of the main axis of the product container 11.
  • a carrier 18 for the dispensing head 12 is placed tightly on the opening of the product container 11.
  • the carrier 18 is provided with a head plate 19, on the underside of which a riser pipe nipple 20 is arranged eccentrically to the main axis of the product container 11.
  • a housing 21 for a dispensing valve 22 is placed on the lower end of the ascending pipe nipple 20 and has an enlarged bore 23 towards the upper end, in which a valve ball 24 is movably arranged.
  • the bore 23 is narrowed to form a conical valve seat 25 for the valve ball 24, the diameter of which corresponds approximately to that of the product channel 27 in the riser pipe 15 and which is widened towards the lower end of the housing 21 towards a receiving opening 26 for the upper end of the riser pipe 15.
  • the product channel 27 in the riser pipe nipple 20 extends through the top plate 19 of the carrier 18.
  • the dispensing valve 22 connected into the product channel 27 is opened at a pressure in the product container 11 which is above the pressure
  • the top plate 19 of the carrier 18 is provided with a through opening 28 for working air and a through opening 29 for ventilation air.
  • Both through openings 28, 29 are arranged eccentrically to the main axis of the product container 11 in a plane diametrical to the main axis, in which the product channel 27 of the riser pipe nipple 20 also extends.
  • the passage opening 29 for ventilation air thus represents a ventilation opening for the interior of the product container 11, which has a substantially larger cross-section than the working air opening 28.
  • the ventilation valve reacts to pressure changes earlier than the delivery valve 22 for the product.
  • the carrier 18 of the product container 11 can be releasably connected to the latter.
  • the detachable connection can consist of an airtight snap connection or a screw thread. Both types of connection are known in the art and are therefore not shown in detail.
  • the carrier 18 is cap-shaped.
  • An upper jacket section 30 of the carrier 18 protrudes above the head plate 19 in the form of a collar 31 and forms with the head plate 19 a recess in which the dispensing head 12 rotatably engages.
  • the engagement of the dispensing head 12 in the collar 31 of the upper part 18 can be achieved by a snap or snap connection 58 by means of undercuts on the inner wall of the collar 31 and on the lower edge of the outer peripheral surface 41 of the dispensing head 12, as is generally known in the art , in such a way that the parts coming into contact with the top plate 19 of the carrier 18 lie tightly on the underside of the dispensing head 12 on the top side of the top plate 19.
  • an outer shoulder 34 is attached, from the outer edge of which a lower casing section 35 extends downward and partially together with the lower edge 33 of the upper casing section 30 the upper, open edge 36 of the Filling container 11 engages and, as mentioned, is tightly fastened thereon, for example by means of a screw thread or snap fit.
  • Figure 1 shows that the product container 11 is inserted into a cartridge 37, the upper edge 38 is bent radially inward and overlaps the outer shoulder 34 of the lower jacket portion 35 of the carrier 18. In this way, the rest or initial position of the carrier 18 is determined.
  • the dispensing head 12 has on its underside an inlet connection 39 for a product channel 40, which is aligned with the product channel 27 in the riser pipe nipple 20 and has the same cross section.
  • a radial rib 56 extends from the upper end of the inlet connector 39 on the underside (FIG. 3). This rib 56 contains a product channel 14, which is guided radially outwards to a delivery opening 13 in a peripheral surface 41 of the delivery head 12.
  • Figure 1 also shows that the working air opening 28 is in communication with a chamber 42 on the underside of the cap-shaped dispensing head 12. Via this chamber 42 the working air opening 28 in the top plate 19 of the carrier 18 is connected to a working air duct 43 which extends parallel to the radial product duct 14 in the rib 56 of the dispensing head 12 up to its dispensing opening 13 in the peripheral surface 41 of the dispensing head 12 .
  • This working air duct 43 is connected to at least one further working air duct 44 which is parallel thereto and which also extends on the underside of the radial product duct 14 in the rib 56 to the discharge opening 13.
  • a nozzle 45 is placed on the dispensing opening 13 of the dispensing head 12 such that the outer surface of the nozzle 45 is flush with the peripheral surface 41 of the dispensing head 12.
  • the nozzle 45 has a recess 46 on its rear side provided, into which the working air duct 43, 44 opens and which forms a swirl chamber 47 which opens radially into the outlet opening 48 of the nozzle 45, the outlet opening 48 being aligned coaxially with the radial product channel 14.
  • FIG. 1 In the working position shown in FIG. 1, there is a vertical ventilation channel 49 above the ventilation opening 29 in the head plate 19 of the carrier 18, the opening facing the head plate 19 of the carrier 18 is aligned with the ventilation opening 29 and is provided with a ventilation valve 50, which at Vacuum in the product container 11 is open.
  • a section 51 of the ventilation channel 49 which is directed parallel to the main axis of the packing 10, has an enlarged bore 53 for receiving a valve ball 52, which ends at the upper end in a conically tapered valve seat 54. Above the valve seat 54, the ventilation channel section 51 is angled radially outward to the main axis of the dispensing head 12 and opens into a suction opening 55 in the peripheral surface 41 of the dispensing head 12.
  • FIG 3 shows that the ventilation valve 50 is arranged in a projection on the underside of the dispensing head 12 , wherein the radial suction channel 55 is also arranged in a rib-like reinforcement 57 on the underside of a closed top wall of the dispensing head 12.
  • the off-center attachment of both the product and the air channels 27, 40, 28, 29, 49 makes it possible to either open or close all of the above-mentioned channels by turning the dispensing head 12 on the carrier 18 of the pack 10.
  • the open or closed position of the dispensing head 12 is defined by stops or detent seats in the dispensing head 12 and carrier, not shown, as are generally known in the art and are therefore not shown.
  • the pack is actuated by the operator pressing the dispensing head 12 downward in the direction of the filling material container 11.
  • the internal pressure prevailing therein is increased.
  • the ventilation valve 50 in the dispensing head 12 is first closed.
  • the pressurized air present above the liquid level in the product container 11 flows through the through opening 28 into the chamber 42 and from there through the radial working air duct 43, 44 and via the swirl chamber 47 to the outlet opening 48 in the nozzle 45 to the outside.
  • the dispensing head 12 At the end of the pump stroke performed by the downward movement of the dispensing head 12, the dispensing head 12 is released.
  • the compression spring element 16 of the product container 11 relaxes, the carrier 18 with the dispensing head 12 sitting thereon returning to the upper rest position.
  • the outer shoulder 34 abuts against the underside of the upper edge 38 of the cartridge 37. Furthermore, when the carrier 18 with the dispensing head 12 returns, it opens the ventilation valve 50 and enables rapid ventilation of the space above the liquid level in the product container 11.
  • the compression spring element 16 forms an integral part of the product container 11, it can be seen that all parts, including the valve balls 24 and 52, can be produced from the same plastic material, so that a good recyclability of the pack is guaranteed.
  • the bottom of the cartridge 37 could be designed to be detachable, so that the pack 10 can be removed through a bottom opening of the cartridge 37 and then an emptied filling container 11 can either be refilled with the contents of a refill or else exchanged for another filled filling container 11. The bottom of the cartridge 37 is then closed again.
  • the base of the cartridge could be screwed to the cartridge 37 or articulated in the form of a cover and provided with a snap lock, as is known in the art and therefore not shown.

Landscapes

  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Closures For Containers (AREA)

Description

Die Erfindung betrifft eine Packung mit einer Handpumpe zur Abgabe fließfähigen Füllgutes, mit einem Füllgutbehälter, auf dem zur Betätigung der Pumpe ein Abgabekopf beweglich angeordnet ist, der mit einer Austrittsöffnung versehen ist, welche mit dem Innenraum des Füllgutbehälters über einen Produktkanal und ein Steigrohr in Verbindung steht, wobei ein Druckfederelement einen integrierten Bestandteil des Füllgubehälters bildet und im Sinne einer Streckung desselben in dessen Längsrichtung wirksam ist.The invention relates to a package with a hand pump for dispensing flowable filling material, with a filling material container on which a dispensing head is movably arranged for actuating the pump, which is provided with an outlet opening which communicates with the interior of the filling material container via a product channel and a riser pipe stands, wherein a compression spring element forms an integrated part of the filling container and is effective in the sense of stretching the same in its longitudinal direction.

Eine solche Packung ist aus der FR-A-1 298 401 bekannt.Such a package is known from FR-A-1 298 401.

Aus umweltpolitischen Gründen werden Formulierungen verschiedener Sprayprodukte auf wasserbasierende Lösungen umgestellt. Darüber hinaus wird auch der Einsatz von jeglichen Treibmitteln außer Luft immer problematischer. Dies führt zu Schwierigkeiten, zufriedenstellende Sprühergebnisse hinsichtlich der erreichbaren Partikelgröße des Sprays zu erzielen. Eine Hilfe bietet hier die Anwendung des Venturi-Prinzips. Allerdings hat sich gezeigt, daß der Bedienkomfort der heute bekannten, nach dem Venturi-Prinzip arbeitenden Verpackungen gewisse Nachteile gegenüber anderen Systemen aufweist. Dies hat den Einsatz nach dem Venturi-Prinzip arbeitender Sprayverpackungen bisher stark begrenzt.For environmental reasons, formulations of various spray products are switched to water-based solutions. In addition, the use of any blowing agent other than air is becoming increasingly problematic. This leads to difficulties in achieving satisfactory spray results with regard to the particle size of the spray that can be achieved. The application of the Venturi principle offers help here. However, it has been shown that the ease of use of the packaging known today, which works according to the Venturi principle, has certain disadvantages compared to other systems. So far, this has severely limited the use of spray packaging that works according to the Venturi principle.

Der Erfindung liegt die Aufgabe zugrunde, Packungen der oben erwähnten bekannten Gattung so zu verbessern, daß eine mit bisher bekannten Aerosolpackungen vergleichbare, hohe Qualität des Sprühstrahls erreicht wird, ein in Richtung der Hauptachse der Packung bewegbarer Sprühkopf eine bequemere Betätigung ermöglicht, die Sprührichtung etwa senkrecht zur Hauptachse der Packung verläuft, ein Verschluß für den Transport der Packung ohne zusätzliche Schutzkappe integriert ist, durch Modifikation von Steigrohr und Düse eine Anpassung an Füllgüter unterschiedlichster Eigenschaften, z.B. Flüssigkeiten unterschiedlichster Viskosität, wie auch Cremes und Puder möglich ist, die gesamte Packung im Sinne einer guten Wiederverwertbarkeit ausschließlich aus einem Material herstellbar ist und gegebenenfalls als wiederverwendbare Packung ausgeführt sein kann.The invention has for its object to improve packs of the known type mentioned above so that a comparable to previously known aerosol packs, high quality of the spray jet is achieved, a movable in the direction of the main axis of the pack spray head allows a more convenient operation, the spray direction approximately perpendicular a closure runs to the main axis of the pack for transporting the pack without an additional protective cap is integrated, by adapting the riser pipe and nozzle, it can be adapted to fill goods with a wide range of properties, e.g. liquids with different viscosities, as well as creams and powders, the entire pack can only be made from one material in order to ensure good recyclability is and can optionally be designed as a reusable package.

Die Erfindung löst diese Aufgabe dadurch, daß ein Träger für den Abgabekopf auf die Öffnung des Füllgutbehälters dicht aufgesetzt sowie mit einer Kopfplatte versehen ist, an deren Unterseite exzentrisch zur Hauptachse des Füllgutbehälters ein Steigrohrnippel angeordnet ist, mit dem das obere Ende des Steigrohres verbunden ist und dessen Produktkanal sich durch die Kopfplatte hindurch erstreckt; ein Abgabeventil dem Steigrohrnippel zugeordnet ist, das bei einem über dem Druck der Außenatmosphäre liegenden Druck im Füllgutbehälter geöffnet ist;
die Kopfplatte mit einer Durchgangsöffnung für Arbeitsluft und mit einer Durchgangsöffnung für Ventilationsluft versehen ist, die zur Hauptachse des Füllgutbehälters exzentrisch angeordnet sind;
der Abgabekopf auf der Oberseite des Trägers dicht, aber zwischen einer Schließstellung und Offenstellung drehbar angeordnet ist und an seiner Unterseite einen Eintrittsstutzen mit einem Produktkanal aufweist, der in der Abgabestellung des Abgabekopfes mit dem Produktkanal des Steigrohrnippels fluchtet und der sich vom oberen Ende des Eintrittsstutzens radial nach außen bis zu einer Abgabeöffnung in einer Mantelfläche des Abgabekopfes erstreckt;
ein mit der Arbeitsluftöffnung der Kopfplatte in Verbindung stehende Arbeitsluftkanal im Abgabekopf sich parallel zu dem radialen Produktkanal bis zu dessen Abgabeöffnung erstreckt;
eine Düse die Austrittsöffnung aufweist und auf die Abgabeöffnung des Abgabekopfes aufgesetzt ist, wobei die Düse an ihrer Rückseite mit einer Wirbelkammer versehen ist, in welche der Arbeitsluftkanal einmündet und die in die Austrittsöffnung der Düse verbunden ist;
ein Belüftungskanal im Abgabekopf mit der Belüftungsöffnung in der Kopfplatte des Trägers in der Arbeitstellung des Abgabekopfes fluchtet und mit einem Belüftungsventil versehen ist, das bei Unterdruck im Füllgutbehälter geöffnet ist.The invention solves this problem in that a carrier for the dispensing head is placed tightly on the opening of the product container and is provided with a head plate, on the underside of which a riser pipe nipple is arranged eccentrically to the main axis of the product container, with which the upper end of the riser pipe is connected and whose product channel extends through the head plate; a dispensing valve is assigned to the riser pipe nipple, which is open at a pressure in the product container which is above the pressure of the outside atmosphere;
the top plate is provided with a through opening for working air and with a through opening for ventilation air, which are arranged eccentrically to the main axis of the product container;
the dispensing head on the top of the carrier is tight, but rotatably arranged between a closed position and an open position and has on its underside an inlet connector with a product channel, which is aligned with the product channel of the riser pipe nipple in the dispensing position of the dispenser head and which radially extends from the upper end of the inlet connector extends outwards to a discharge opening in a lateral surface of the discharge head;
a working air duct in the dispensing head connected to the working air opening of the head plate extends parallel to the radial product duct up to its dispensing opening;
a nozzle has the outlet opening and is placed on the discharge opening of the discharge head, the nozzle being provided on its rear side with a swirl chamber into which the working air duct opens and which is connected to the outlet opening of the nozzle;
a ventilation channel in the dispensing head is aligned with the ventilation opening in the head plate of the carrier in the working position of the dispensing head and is provided with a ventilation valve which is opened when the filling container is under vacuum.

Vorteilhafte Weiterbildungen der Erfindung sind in den Ansprüchen 2 bis 12 enthalten.Advantageous developments of the invention are contained in claims 2 to 12.

Die Erfindung ist nachstehend mit weiteren Einzelheiten anhand der schematischen Zeichnung eines Ausführungs-beispiels näher erläutert. Es zeigen:

Fig. 1
die Packung gemäß der Erfindung in einem mittleren Längsschnitt,
Fig. 2
eine Unteransicht eines Oberteils eines Füllgutbehälters und
Fig. 3
eine Unteransicht eines Abgabekopfes.
The invention is explained in more detail below with the aid of the schematic drawing of an exemplary embodiment. Show it:
Fig. 1
the pack according to the invention in a middle longitudinal section,
Fig. 2
a bottom view of an upper part of a product container and
Fig. 3
a bottom view of a dispensing head.

In Figur 1 ist eine Packung 10 aus Kunststoff, wie Polyethylen, mit einer Handpumpe zur Abgabe fließfähigen Füllgutes gezeigt. Auf einem Füllgutbehälter 11 ist zur Betätigung der Pumpe ein Abgabekopf 12 beweglich angeordnet. Der Abgabekopf 12 ist mit einer Austrittsöffnung 48 versehen, welche mit dem Innenraum des Füllgutbehälters 11 über einen Produktkanal 14, 27, 40 und ein Steigrohr 15 in Verbindung steht.In Figure 1, a package 10 made of plastic, such as polyethylene, is shown with a hand pump for dispensing flowable contents. A dispensing head 12 is movably arranged on a filling material container 11 for actuating the pump. The dispensing head 12 is provided with an outlet opening 48, which is connected to the interior of the product container 11 via a product channel 14, 27, 40 and a riser pipe 15.

Ein Druckfederelement 16 ist ein integraler Bestandteil der Wandung 17 des Füllgutbehälters 11 und nach Art eines Ziehharmonikabalges geformt. Das Druckfederelement 16 ist im Sinne einer Streckung der Behälterwand 17 oberhalb des Druckfederelementes 16 in beiden Richtungen der Hauptachse des Füllgutbehälters 11 wirksam.A compression spring element 16 is an integral part of the wall 17 of the product container 11 and is shaped in the manner of an accordion bellows. The compression spring element 16 is in the sense of an extension of the container wall 17 above the Compression spring element 16 effective in both directions of the main axis of the product container 11.

Ein Träger 18 für den Abgabekopf 12 ist auf die Öffnung des Füllgutbehälters 11 dicht aufgesetzt. Der Träger 18 ist mit einer Kopfplatte 19 versehen, an deren Unterseite exzentrisch zur Hauptachse des Füllgutbehälters 11 ein Steigrohrnippel 20 angeordnet ist. Auf das untere Ende des Steigrohrnippels 20 ist ein Gehäuse 21 für ein Abgabeventil 22 aufgesetzt, das zum oberen Ende hin eine erweiterte Bohrung 23 aufweist, in der eine Ventilkugel 24 beweglich angeordnet ist. Die Bohrung 23 ist unter Bildung eines konischen Ventilsitzes 25 für die Ventilkugel 24 verengt, dessen Durchmesser demjenigen des Produktkanals 27 im Steigrohr 15 etwa entspricht und die zum unteren Ende des Gehäuses 21 hin zu einer Aufnahmeöffnung 26 für das obere Ende des Steigrohrs 15 erweitert ist. Der Produktkanal 27 im Steigrohrnippel 20 erstreckt sich durch die Kopfplatte 19 des Trägers 18. Das in den Produktkanal 27 geschaltete Abgabeventil 22 ist bei einem über dem Druck der Außenatmosphäre liegenden Druck im Füllgutbehälter 11 geöffnet.A carrier 18 for the dispensing head 12 is placed tightly on the opening of the product container 11. The carrier 18 is provided with a head plate 19, on the underside of which a riser pipe nipple 20 is arranged eccentrically to the main axis of the product container 11. A housing 21 for a dispensing valve 22 is placed on the lower end of the ascending pipe nipple 20 and has an enlarged bore 23 towards the upper end, in which a valve ball 24 is movably arranged. The bore 23 is narrowed to form a conical valve seat 25 for the valve ball 24, the diameter of which corresponds approximately to that of the product channel 27 in the riser pipe 15 and which is widened towards the lower end of the housing 21 towards a receiving opening 26 for the upper end of the riser pipe 15. The product channel 27 in the riser pipe nipple 20 extends through the top plate 19 of the carrier 18. The dispensing valve 22 connected into the product channel 27 is opened at a pressure in the product container 11 which is above the pressure of the outside atmosphere.

Die Kopfplatte 19 des Trägers 18 ist mit einer Durchgangsöffnung 28 für Arbeitsluft und einer Durchgangsöffnung 29 für Ventilationsluft versehen. Beide Durchgangsöffnungen 28, 29 sind zur Hauptachse des Füllgutbehälters 11 exzentrisch in einer zu der Hauptachse diametralen Ebene angeordnet, in der sich auch der Produktkanal 27 des Steigrohrnippels 20 erstreckt. Die Durchgangsöffnung 29 für Ventilationsluft stellt somit eine Belüftungsöffnung für den Innenraum des Füllgutbehälters 11 dar, die einen wesentlich größeren Querschnitt aufweist als die Arbeitsluftöffnung 28. Infolgedessen reagiert das Belüftungsventil auf Druckänderungen früher als das Abgabeventil 22 für das Produkt.The top plate 19 of the carrier 18 is provided with a through opening 28 for working air and a through opening 29 for ventilation air. Both through openings 28, 29 are arranged eccentrically to the main axis of the product container 11 in a plane diametrical to the main axis, in which the product channel 27 of the riser pipe nipple 20 also extends. The passage opening 29 for ventilation air thus represents a ventilation opening for the interior of the product container 11, which has a substantially larger cross-section than the working air opening 28. As a result, the ventilation valve reacts to pressure changes earlier than the delivery valve 22 for the product.

Der Träger 18 des Füllgutbehälters 11 kann mit letzterem lösbar verbunden sein. Die lösbare Verbindung kann aus einer luftdichten Schnappverbindung bestehen oder auch aus einem Schraubgewinde. Beide Verbindungsarten sind in der Technik bekannt und daher im einzelnen nicht dargestellt. Der Träger 18 ist kappenförmig ausgebildet. Ein oberer Mantelabschnitt 30 des Trägers 18 ragt über dessen Kopfplatte 19 in Form eines Kragens 31 nach oben hinaus und bildet mit der Kopfplatte 19 eine Vertiefung, in die der Abgabekopf 12 verdrehbar eingreift. Der Eingriff des Abgabekopfes 12 in den Kragen 31 des Oberteils 18 kann durch eine Rast- oder Schnappverbindung 58 mittels Hinterschneidungen an der Innenwand des Kragens 31 und am unteren Rand der äußeren Umfangsfläche 41 des Abgabekopfes 12 erreicht werden, wie er auf diesem Fachgebiet allgemein bekannt ist, und zwar derart, daß die mit der Kopfplatte 19 des Trägers 18 in Berührung kommenden Teile an der Unterseite des Abgabekopfes 12 dicht auf der Oberseite der Kopfplatte 19 aufliegen.The carrier 18 of the product container 11 can be releasably connected to the latter. The detachable connection can consist of an airtight snap connection or a screw thread. Both types of connection are known in the art and are therefore not shown in detail. The carrier 18 is cap-shaped. An upper jacket section 30 of the carrier 18 protrudes above the head plate 19 in the form of a collar 31 and forms with the head plate 19 a recess in which the dispensing head 12 rotatably engages. The engagement of the dispensing head 12 in the collar 31 of the upper part 18 can be achieved by a snap or snap connection 58 by means of undercuts on the inner wall of the collar 31 and on the lower edge of the outer peripheral surface 41 of the dispensing head 12, as is generally known in the art , in such a way that the parts coming into contact with the top plate 19 of the carrier 18 lie tightly on the underside of the dispensing head 12 on the top side of the top plate 19.

Aus Figur 2 geht hervor, daß sich von der Unterseite der Kopfplatte 19 des Trägers 18 zwischen dem Steigrohrnippel 20 und der Durchgangsöffnung 28 für Arbeitsluft eine Trennwand 32 bis zum unteren Rand 33 des oberen Mantelabschnitts 30 des Trägers 18 parallel zur Hauptachse desselben sowie senkrecht zu der Radialebene erstreckt, in der die Durchgangsöffnungen 28, 29 für Arbeitsluft bzw. Ventilationsluft und der Steigrohrnippel 20 angeordnet sind. Die Trennwand 32 ermöglicht ein störungsfreies Versprühen des Füllgutes auch in einer bis zu etwa 45° nach unten geneigten Lage der Sprüh- oder Austrittsöffnung 48.From Figure 2 it can be seen that from the underside of the top plate 19 of the carrier 18 between the riser pipe nipple 20 and the passage opening 28 for working air there is a partition 32 to the lower edge 33 of the upper jacket section 30 of the carrier 18 parallel to the main axis thereof and perpendicular to it Radial plane extends in which the through openings 28, 29 for working air or ventilation air and the riser pipe nipple 20 are arranged. The partition wall 32 enables trouble-free spraying of the filling material even in a position in which the spray or outlet opening 48 is inclined downward by approximately 45 °.

An der Außenseite des oberen Mantelabschnitts 30 des Trägers 18 ist eine Außenschulter 34 angesetzt, von deren Außenrand sich ein unterer Mantelabschnitt 35 abwärts erstreckt und teilweise zusammen mit dem unteren Rand 33 des oberen Mantelabschnitts 30 den oberen, offenen Rand 36 des Füllgutbehälters 11 übergreift und auf diesem, wie erwähnt, dicht, z.B. mittels Schraubgewinde oder Schnappsitz, befestigt ist.On the outside of the upper casing section 30 of the carrier 18, an outer shoulder 34 is attached, from the outer edge of which a lower casing section 35 extends downward and partially together with the lower edge 33 of the upper casing section 30 the upper, open edge 36 of the Filling container 11 engages and, as mentioned, is tightly fastened thereon, for example by means of a screw thread or snap fit.

Figur 1 zeigt, daß der Füllgutbehälter 11 in eine Kartusche 37 eingesetzt ist, deren oberer Rand 38 radial nach innen abgekröpft ist und die Außenschulter 34 des unteren Mantelabschnitts 35 des Trägers 18 übergreift. Auf diese Weise ist die Ruhe- oder Ausgangsstellung des Trägers 18 bestimmt. Der über der Kopfplatte 19 des Trägers 18 verdrehbar angeordnete Abgabekopf 12 ist in Figur 1 in der Arbeits- bzw. Abgabestellung gezeigt. Der Abgabekopf 12 weist an seiner Unterseite einen Eintrittsstutzen 39 für einen Produktkanal 40 auf, der mit dem Produktkanal 27 im Steigrohrnippel 20 fluchtet und den gleichen Querschnitt hat. Vom oberen Ende des Eintrittstutzens 39 erstreckt sich an der Unterseite eine radiale Rippe 56 (Fig. 3). Diese Rippe 56 enthält einen Produktkanal 14, der radial nach außen bis zu einer Abgabeöffnung 13 in einer Umfangsfläche 41 des Abgabekopfes 12 geführt ist.Figure 1 shows that the product container 11 is inserted into a cartridge 37, the upper edge 38 is bent radially inward and overlaps the outer shoulder 34 of the lower jacket portion 35 of the carrier 18. In this way, the rest or initial position of the carrier 18 is determined. The dispensing head 12, which is rotatably arranged above the head plate 19 of the carrier 18, is shown in FIG. 1 in the working or dispensing position. The dispensing head 12 has on its underside an inlet connection 39 for a product channel 40, which is aligned with the product channel 27 in the riser pipe nipple 20 and has the same cross section. A radial rib 56 extends from the upper end of the inlet connector 39 on the underside (FIG. 3). This rib 56 contains a product channel 14, which is guided radially outwards to a delivery opening 13 in a peripheral surface 41 of the delivery head 12.

Figur 1 zeigt ferner, daß die Arbeitsluftöffnung 28 mit einer Kammer 42 an der Unterseite des kappenförmigen Abgabekopfes 12 in Verbindung steht. Über diese Kammer 42 steht die Arbeitsluftöffnung 28 in der Kopfplatte 19 des Trägers 18 mit einem Arbeitsluftkanal 43 in Verbindung, der sich parallel zu dem radialen Produktkanal 14 in der Rippe 56 des Abgabekopfes 12 bis zu dessen Abgabeöffnung 13 in der Umfangsfläche 41 des Abgabekopfes 12 erstreckt. Dieser Arbeitsluftkanal 43 steht mit mindestens einem weiteren, hierzu parallelen Arbeitsluftkanal 44 in Verbindung, der sich an der Unterseite des radialen Produktkanals 14 ebenfalls in der Rippe 56 bis zur Abgabeöffnung 13 erstreckt. Eine Düse 45 ist auf die Abgabeöffnung 13 des Abgabekopfes 12 aufgesetzt, derart, daß die äußere Oberfläche der Düse 45 mit der Umfangsfläche 41 des Abgabekopfes 12 fluchtet. Die Düse 45 ist an ihrer Rückseite mit einer Ausnehmung 46 versehen, in welche der Arbeitsluftkanal 43, 44 einmündet und die eine Wirbelkammer 47 bildet, welche radial in die Austrittsöffnung 48 der Düse 45 mündet, wobei die Austrittsöffnung 48 koaxial zu dem radialen Produktkanal 14 ausgerichtet ist.Figure 1 also shows that the working air opening 28 is in communication with a chamber 42 on the underside of the cap-shaped dispensing head 12. Via this chamber 42 the working air opening 28 in the top plate 19 of the carrier 18 is connected to a working air duct 43 which extends parallel to the radial product duct 14 in the rib 56 of the dispensing head 12 up to its dispensing opening 13 in the peripheral surface 41 of the dispensing head 12 . This working air duct 43 is connected to at least one further working air duct 44 which is parallel thereto and which also extends on the underside of the radial product duct 14 in the rib 56 to the discharge opening 13. A nozzle 45 is placed on the dispensing opening 13 of the dispensing head 12 such that the outer surface of the nozzle 45 is flush with the peripheral surface 41 of the dispensing head 12. The nozzle 45 has a recess 46 on its rear side provided, into which the working air duct 43, 44 opens and which forms a swirl chamber 47 which opens radially into the outlet opening 48 of the nozzle 45, the outlet opening 48 being aligned coaxially with the radial product channel 14.

In der in Figur 1 gezeigten Arbeitsstellung befindet sich oberhalb der Belüftungsöffnung 29 in der Kopfplatte 19 des Trägers 18 ein senkrechter Belüftungskanal 49, dessen der Kopfplatte 19 des Trägers 18 zugekehrte Öffnung mit der Belüftungsöffnung 29 fluchtet und der mit einem Belüftungsventil 50 versehen ist, das bei Unterdruck im Füllgutbehälter 11 geöffnet ist. Ein Abschnitt 51 des Belüftungskanals 49, der parallel zur Hauptachse der Packung 10 gerichtet ist, weist zur Aufnahme einer Ventilkugel 52 eine erweiterte Bohrung 53 auf, die am oberen Ende in einen konisch verjüngten Ventilsitz 54 ausläuft. Oberhalb des Ventilsitzes 54 ist der Belüftungskanalabschnitt 51 radial zur Hauptachse des Abgabekopfes 12 nach außen abgewinkelt und mündet in eine Ansaugöffnung 55 in der Umfangfläche 41 des Abgabekopfes 12. Figur 3 zeigt, daß das Belüftungsventil 50 in einem Ansatz an der Unterseite des Abgabekopfes 12 angeordnet ist, wobei der radiale Ansaugkanal 55 ebenfalls in einer rippenartigen Verstärkung 57 an der Unterseite einer geschlossenen Deckwand des Abgabekopfes 12 angeordnet ist.In the working position shown in FIG. 1, there is a vertical ventilation channel 49 above the ventilation opening 29 in the head plate 19 of the carrier 18, the opening facing the head plate 19 of the carrier 18 is aligned with the ventilation opening 29 and is provided with a ventilation valve 50, which at Vacuum in the product container 11 is open. A section 51 of the ventilation channel 49, which is directed parallel to the main axis of the packing 10, has an enlarged bore 53 for receiving a valve ball 52, which ends at the upper end in a conically tapered valve seat 54. Above the valve seat 54, the ventilation channel section 51 is angled radially outward to the main axis of the dispensing head 12 and opens into a suction opening 55 in the peripheral surface 41 of the dispensing head 12. FIG. 3 shows that the ventilation valve 50 is arranged in a projection on the underside of the dispensing head 12 , wherein the radial suction channel 55 is also arranged in a rib-like reinforcement 57 on the underside of a closed top wall of the dispensing head 12.

Die außermittige Anbringung sowohl der Produkt- als auch der Luftkanäle 27, 40, 28, 29, 49 ermöglicht es, durch Verdrehen des Abgabekopfes 12 auf dem Träger 18 der Packung 10 alle genannten Kanäle entweder zu öffnen oder zu verschließen. Die geöffnete bzw. verschlossene Position des Abgabekopfes 12 ist durch nicht gezeigte Anschläge oder Rastsitze im Abgabekopf 12 und Träger definiert, wie sie in der Technik allgemein bekannt und daher nicht dargestellt sind.The off-center attachment of both the product and the air channels 27, 40, 28, 29, 49 makes it possible to either open or close all of the above-mentioned channels by turning the dispensing head 12 on the carrier 18 of the pack 10. The open or closed position of the dispensing head 12 is defined by stops or detent seats in the dispensing head 12 and carrier, not shown, as are generally known in the art and are therefore not shown.

Die Packung wird dadurch betätigt, daß die Bedienungsperson den Abgabekopf 12 in Richtung des Füllgutbehälters 11 abwärts drückt. Durch die Verringerung des inneren Volumens des Füllgutbehälters 11 wird der darin herrschende Innendruck erhöht. Durch den erhöhten Innendruck im Füllgutbehälter 11 wird zunächst das Belüftungsventil 50 im Abgabekopf 12 geschlossen. Infolgedessen strömt die oberhalb des Flüssigkeitspiegels im Füllgutbehälter 11 vorhandene, unter Druck gesetzte Luft durch die Durchgangsöffnung 28 in die Kammer 42 und von dort durch den radialen Arbeitsluftkanal 43, 44 und über die Wirbelkammer 47 zur Austrittsöffnung 48 in der Düse 45 nach außen. Dadurch entsteht an der Abgabeöffnung 13 des Produktkanals 14 ein Unterdruck, so daß das Abgabeventil 22 geöffnet und das Füllgut durch das Steigrohr 15 und das Abgabeventil 22 in die Produktkanäle 27, 40 und 14 bis zur Abgabeöffnung 13 strömt und sich in der Düse 45 mit der ausströmenden Luft vermischt und zerstäubt wird.The pack is actuated by the operator pressing the dispensing head 12 downward in the direction of the filling material container 11. By reducing the inner volume of the product container 11, the internal pressure prevailing therein is increased. Due to the increased internal pressure in the product container 11, the ventilation valve 50 in the dispensing head 12 is first closed. As a result, the pressurized air present above the liquid level in the product container 11 flows through the through opening 28 into the chamber 42 and from there through the radial working air duct 43, 44 and via the swirl chamber 47 to the outlet opening 48 in the nozzle 45 to the outside. This creates a negative pressure at the discharge opening 13 of the product channel 14, so that the discharge valve 22 opens and the filling material flows through the riser pipe 15 and the discharge valve 22 into the product channels 27, 40 and 14 up to the discharge opening 13 and in the nozzle 45 with the escaping air is mixed and atomized.

Am Ende des durch die Abwärtsbewegung des Abgabekopfes 12 ausgeführten Pumphubes wird der Abgabekopf 12 freigegeben. Das Druckfederelement 16 des Füllgutbehälters 11 entspannt sich, wobei der Träger 18 mit dem darauf sitzenden Abgabekopf 12 in die obere Ruhelage zurückkehrt.At the end of the pump stroke performed by the downward movement of the dispensing head 12, the dispensing head 12 is released. The compression spring element 16 of the product container 11 relaxes, the carrier 18 with the dispensing head 12 sitting thereon returning to the upper rest position.

Dabei schlägt die Außenschulter 34 gegen die Unterseite des oberen Randes 38 der Kartusche 37 an. Ferner öffnet sie bei der Rückkehr des Trägers 18 mit Abgabekopf 12 das Belüftungsventil 50 und ermöglicht eine schnelle Belüftung des Raums oberhalb des Flüssigkeitsspiegels im Füllgutbehälter 11.The outer shoulder 34 abuts against the underside of the upper edge 38 of the cartridge 37. Furthermore, when the carrier 18 with the dispensing head 12 returns, it opens the ventilation valve 50 and enables rapid ventilation of the space above the liquid level in the product container 11.

Da das Druckfederelement 16 einen integralen Bestandteil des Füllgutbehälters 11 bildet, ist ersichtlich, daß sämtliche Teile, einschließlich der Ventilkugeln 24 bzw. 52 aus dem gleichen Kunststoffmaterial hergestellt werden können, so daß eine gute Wiederverwertbarkeit der Packung gewährleistet ist. Darüber hinaus könnte der Boden der Kartusche 37 lösbar ausgebildet sein, so daß die Packung 10 durch eine Bodenöffnung der Kartusche 37 entnommen und anschließend ein entleerter Füllgutbehälter 11 entweder mit dem Inhalt einer Nachfüllpackung wieder aufgefüllt oder aber gegen einen anderen gefüllten Füllgutbehälter 11 ausgetauscht werden kann. Anschließend wird dann der Boden der Kartusche 37 wieder geschlossen. Der Kartuschenboden könnte mit der Kartusche 37 verschraubbar oder in Form eines Deckels angelenkt und mit einem Schnappverschluß versehen sein, wie es in der Technik bekannt und daher nicht dargestellt ist.Since the compression spring element 16 forms an integral part of the product container 11, it can be seen that all parts, including the valve balls 24 and 52, can be produced from the same plastic material, so that a good recyclability of the pack is guaranteed. In addition, the bottom of the cartridge 37 could be designed to be detachable, so that the pack 10 can be removed through a bottom opening of the cartridge 37 and then an emptied filling container 11 can either be refilled with the contents of a refill or else exchanged for another filled filling container 11. The bottom of the cartridge 37 is then closed again. The base of the cartridge could be screwed to the cartridge 37 or articulated in the form of a cover and provided with a snap lock, as is known in the art and therefore not shown.

BezugszeichenlisteReference list

1010th
Packungpack
1111
FüllgutbehälterProduct container
1212th
AbgabekopfDispensing head
1313
AbgabeöffnungDelivery opening
1414
ProduktkanalProduct channel
1515
SteigrohrRiser pipe
1616
DruckfederelementCompression spring element
1717th
WandungWall
1818th
Trägercarrier
1919th
KopfplatteHeadstock
2020th
SteigrohrnippelRiser pipe nipple
2121
Gehäusecasing
2222
AbgabeventilDispensing valve
2323
Bohrungdrilling
2424th
VentilkugelValve ball
2525th
VentilsitzValve seat
2626
AufnahmeöffnungReceiving opening
2727
Produktkanal im SteigrohrProduct channel in the riser pipe
2828
Durchgangsöffnung für ArbeitsluftThrough opening for working air
2929
Durchgangsöffnung für VentilationsluftThrough opening for ventilation air
3030th
erster, oberer Trägermantelabschnittfirst, upper carrier jacket section
3131
Kragencollar
3232
Trennwandpartition wall
3333
unterer Randlower margin
3434
AußenschulterOuter shoulder
3535
zweiter, unterer Mantelabschnittsecond, lower jacket section
3636
oberer, offener Randupper, open margin
3737
Kartuschecartridge
3838
oberer Randupper edge
3939
EintrittsstutzenInlet connection
4040
Produktkanal im Eintrittsstutzen des AbgabekopfesProduct channel in the inlet nozzle of the dispensing head
4141
UmfangsflächeCircumferential surface
4242
Kammerchamber
4343
ArbeitsluftkanalWorking air duct
4444
ArbeitsluftkanalWorking air duct
4545
Düsejet
4646
AusnehmungRecess
4747
WirbelkammerVortex chamber
4848
AustrittsöffnungOutlet opening
4949
Belüftungskanal im AbgabekopfVentilation channel in the dispensing head
5050
BelüftungsventilVentilation valve
5151
BelüftungskanalabschnittVentilation duct section
5252
VentilkugelValve ball
5353
erweiterte Bohrungenlarged bore
5454
VentilsitzValve seat
5555
AnsaugöffnungSuction opening
5656
radiale Ripperadial rib
5757
rippenartige Verstärkungrib-like reinforcement
5858
Rast- oder SchnappverbindungSnap or snap connection

Claims (12)

  1. Package (10) with a hand pump for dispensing flowable material with a material container (11), movably arranged on which to actuate the pump is a dispensing head (12), which is provided with an outlet opening (48), which communicates with the interior of the material container (11) via a product passage (14,27,40) and a feed pipe (15), whereby a compression spring element (16) constitutes an integrated component of the material container (11) and acts to extend the same in its longitudinal direction, characterised in that a carrier (18) for the dispensing head (12) is sealingly positioned on the opening of the material container (11) and is provided with a top plate (19), arranged on the underside of which eccentrically to the main axis of the material container (11) there is a feed pipe nipple (20) to which the upper end of the feed pipe (15) is connected and whose product passage (27) extends through the top plate (19); a dispensing valve (22) is associated with the feed pipe nipple (20) which is open when the pressure in the material container (11) exceeds atmospheric pressure; the top plate (19) is provided with a through-opening (28) for working air and with a through-opening (29) for ventilating air, which are arranged eccentrically to the main axis of the material container (11); the dispensing head (12) is arranged on the upper side of the carrier (18) so as to be sealed but to be rotatable between a closed position and an open position and, on its underside, has an inlet connection (39) with a product passage (40), which is in alignment with the product passage (27) in the feed pipe nipple (20) in the dispensing position of the dispensing head (12) and which extends radially outwardly from the upper end of the inlet connection (39) to a dispensing opening (13) in a side surface (41) of the dispensing head (12); a working air passage (43), which is in communication with the working air opening (28) in the top plate, in the dispensing head (12) extends parallel to the radial product passage (14) to its dispensing opening (13); a nozzle (45) affords the outlet opening (48) and is positioned on the dispensing opening (13) of the dispensing head (12), the nozzle (45) being provided at its rear side with a vortex chamber (47) with which the working air passage (43) communicates and which is connected to the outlet opening (48) of the nozzle (45); an aeration passage (49) in the dispensing head (12) is in alignment with the aeration opening (29) in the top plate (19) of the carrier (18) in the working position of the dispensing head (12) and is provided with an aeration valve (15) which is open when there is a reduced pressure in the material container (11).
  2. Package as claimed in claim 1, characterised in that the compression spring element (16) of the material container (11) is shaped in the manner of an accordion bellows.
  3. Package as claimed in claim 1, characterised in that the carrier (18) is releasably connected to the material container (11).
  4. Package as claimed in one of claims 1 to 3, characterised in that the carrier (18) is of cap-shaped construction.
  5. Package as claimed in claim 4, characterised in that a cap-shaped wall section (31) of the carrier (18) projects upwardly beyond its top plate (19) and defines with it a recess into which the dispensing head (12) is insertable with a locking fit with the inner surface of the wall section (31).
  6. Package as claimed in claim 1, characterised in that a housing (21) of the dispensing valve (22) has a bore (23) which is broadened towards the upper end and in which a valve ball (24) is movably arranged and which is conically narrowed to form a valve seat (25) for the valve ball (24), the diameter of which approximately corresponds to that of the product passage (27) in the feed pipe (15) and is broadened towards the lower end of the housing (21) to form a receiving opening (26) for the upper end of the feed pipe (15).
  7. Package as claimed in claim 1, characterised in that the through-openings (28,29) for the working air and the ventilating air are arranged on one side of the main axis of the carrier (18) and the feed pipe nipple (20) is arranged on the other side of the main axis in a common radial plane of the main axis of the carrier (18).
  8. Package as claimed in claims 1 or 7, characterised in that a partition wall (32) extends from the underside of the top plate (19) of the carrier (18) between the feed pipe nipple (20) and the through-opening (28) for working air to the lower edge of an upper wall section (30) of the carrier (18) parallel to the main axis thereof and perpendicular to the radial plane of the through-openings (28,29) for working air and ventilation air and of the feed pipe nipple (20).
  9. Package as claimed in claim 8, characterised in that secured to the outer surface of the upper wall section (30) of the carrier (18) there is an external shoulder (34), extending downwardly from whose outer edge there is a lower wall section (35) which, together with the lower edge of the first, upper wall section (30) partially engages over the upper open end of the material container (11).
  10. Package as claimed in claim 1, characterised in that the aeration passage (49) in the dispensing head (12) together with the inlet connection (39) and the product passage (40) in the dispensing head (12) leading to the dispensing opening (13) are arranged in a diametral plane of the dispensing head (12).
  11. Package as claimed in one of claims 1 or 10, characterised in that a section (51) of the aeration passage (49), which is directed parallel to the main axis of the dispensing head (12), has a larger cross-section to receive a valve ball (52) and terminates at the upper end in a conically tapered valve seat (54), whereby the aeration passage (49) is bent outwardly radially to the main axis of the dispensing head (12) above the valve seat (54) and opens out in a suction opening (55) in the wall surface (41) of the dispensing head (12).
  12. Package as claimed in claim 9, characterised in that the material container (11) is inserted into a cartridge (37) whose upper edge (38) is bent radially inwardly and engages over the external shoulder (34) of the lower wall section (35) of the carrier (18).
EP93108217A 1992-05-21 1993-05-19 Package for flowable products Expired - Lifetime EP0570965B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4216915A DE4216915C2 (en) 1992-05-21 1992-05-21 Pack for flowable contents
DE4216915 1992-05-21
US08/065,614 US5328060A (en) 1992-05-21 1993-05-21 Pack for free-flowing filler

Publications (2)

Publication Number Publication Date
EP0570965A1 EP0570965A1 (en) 1993-11-24
EP0570965B1 true EP0570965B1 (en) 1996-05-01

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Application Number Title Priority Date Filing Date
EP93108217A Expired - Lifetime EP0570965B1 (en) 1992-05-21 1993-05-19 Package for flowable products

Country Status (3)

Country Link
US (2) US5328060A (en)
EP (1) EP0570965B1 (en)
DE (1) DE4216915C2 (en)

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Also Published As

Publication number Publication date
EP0570965A1 (en) 1993-11-24
DE4216915A1 (en) 1993-11-25
US5328060A (en) 1994-07-12
USRE35354E (en) 1996-10-22
DE4216915C2 (en) 1994-05-19

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