(19)
(11) EP 0 873 945 B1

(12) EUROPEAN PATENT SPECIFICATION

(45) Mention of the grant of the patent:
13.08.2003 Bulletin 2003/33

(21) Application number: 98303154.3

(22) Date of filing: 23.04.1998
(51) International Patent Classification (IPC)7B65D 81/32

(54)

Multiple cavity dispensing package

Mehrkammerspenderpackung

Emballage distributeur à plusiers compartiments


(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

(30) Priority: 25.04.1997 US 843105

(43) Date of publication of application:
28.10.1998 Bulletin 1998/44

(73) Proprietor: Owens-Brockway Plastic Products Inc.
Toledo, OH 43666 (US)

(72) Inventor:
  • Durliat, Leonora M.
    Toledo, OH 43609-1929 (US)

(74) Representative: Mercer, Christopher Paul et al
Carpmaels & Ransford 43, Bloomsbury Square
London WC1A 2RA
London WC1A 2RA (GB)


(56) References cited: : 
EP-A- 0 605 890
DE-A- 3 514 134
EP-A- 0 747 299
US-A- 5 645 193
   
       
    Note: Within nine months from the publication of the mention of the grant of the European patent, any person may give notice to the European Patent Office of opposition to the European patent granted. Notice of opposition shall be filed in a written reasoned statement. It shall not be deemed to have been filed until the opposition fee has been paid. (Art. 99(1) European Patent Convention).


    Description


    [0001] This invention relates to multiple cavity pump dispensing packages.

    Background and Summary of the Invention



    [0002] Multiple cavity dispensing packages of the pump type are shown in U.S. Patents Nos. 5,020,694, 5,289,949 and 5,332,124.

    [0003] In U.S. Patent No. 5,289,949, there is disclosed a package comprising an upper housing on which a nozzle is snapped into position and a closure snapped onto the nozzle. The upper housing is slidably received in a lower housing which supports dual pistons such that when the upper housing is depressed dual streams of two materials are dispensed. Such a package is shown in the prior art. Such a package comprises a dispensing pump including an upper shroud with two integral cylinders, which slidably accommodate pistons fixed on a lower shroud. The cylinders contain the product which is to be dispensed. The upper shroud includes dual outlets extending laterally of the upper shroud with two passages connected to the two cylinders. A dual outlet assembly snaps into the upper shroud and has dual passages communicating with the dual outlets and extending laterally of the upper shroud. A nozzle snaps on the dual outlet assembly and engages the dual outlets. A cap is hinged to the nozzle. The cap is provided with a septum for maintaining the two products to be dispensed separate and are not intermixed when the cap is closed.

    [0004] EP 0 747 299 discloses a multi-chamber refillable dispenser where the piston element is separate from the main body of the dispenser. The single chamber dispenser in EP 0 605 890 also discloses a piston that is separate from the plunger element of the dispenser. US 5 289 949 also discloses a multi-chamber dispenser where the piston element is separate and unwanted mixing of the contents of the two chambers, at the nozzle, is prevented by an extended septum.

    [0005] Among the objectives of the present invention are to provide a multiple cavity dispensing package which is less complex, which uses a minimum number of parts, which is less costly to manufacture by using fewer molds, and which is easier to assemble.

    [0006] In accordance with the invention, there is provided a multiple cavity dispensing package as defined in claim 1. The package comprises a first hollow plastic body and a second hollow plastic body that interengage to define dual pump. The first plastic body is molded in one piece and includes an integral lateral nozzle with a cap integrally hinged thereto. The second plastic body includes integral pistons. The first plastic body includes integral cylinders, integral tubes extending through the integral nozzle. The cap includes dual plug seals which seal against the internal peripheral surfaces of the dual outlets of the nozzle.

    [0007] The present invention also provides a method of making a multiple cavity dispensing package as defined in claim 4. It must be noted that the embodiment of Figures 1-10 wherein the pistons are separate is not part of the invention.

    Description of the Drawings



    [0008] 

    Fig. 1 is a perspective view of a multiple cavity dispensing package embodying the invention.

    Fig. 2 is an exploded perspective view, showing the cap in open position.

    Fig. 3 is a top plan view.

    Fig. 4 is a part sectional view taken along the line 4-4 in Fig. 3.

    Fig. 5 is a sectional view taken along the line 5-5 in Fig. 4.

    Fig. 6 is a sectional view taken along the line 6-6 in Fig. 3.

    Fig. 7 is a fragmentary sectional view at the circle 7 in Fig. 4.

    Fig. 8 is a top plan view of the lower plastic body in Figs. 1 and 2.

    Fig. 9 is a fragmentary front elevational view on an enlarged scale with the cap in open position.

    Fig. 10 is a sectional view taken along the line 10-10 in Fig. 9.

    Fig. 11 is a part sectional elevational view similar to Fig. 4 showing a modified form of a multiple cavity dispensing packages.

    Fig. 12 is an elevational view of a portion of the package shown in Fig. 11.

    Fig. 13 is a sectional view taken along the line 13-13 in Fig. 12.

    Fig. 14 is a sectional elevational of the second lower part of the package shown in Figs. 12 and 13.


    Detailed Description of the Preferred Embodiment



    [0009] Referring to Figs. 1-10, the multiple cavity dispensing package 10 comprises a first upper hollow plastic body 12 and a second lower hollow plastic body 14 that interengage to define a dual pump. The first plastic body 12 is molded in one piece and includes an integral lateral nozzle 16 having dual outlets with a cap 18 integrally hinged by hinge 20 to body 12. The second plastic body 14 includes pistons 22. The first plastic body 12 includes integral cylinders 24 that define product chambers and integral outlets 26 extending through the integral nozzle 16. As in the aforementioned patents 5,020,694, 5,289,949 and 5,332,124, when product is placed in the cylinders and the first part 12 is depressed, the product is dispensed.

    [0010] Further, in accordance with the invention, the cap includes integral plug seals which engage the complementary inner surfaces of the outlets 26 in integral nozzle 16.

    [0011] In a modified form shown in Figs. 11-14, the seals are made integral with the pistons 22a which are, in turn, fixed on the lower body 14a. Corresponding parts are designated with a suffix "a".

    [0012] In each of the forms, the product to be dispensed is introduced into the cylinders 24, 24a and the body 12 and 14 are assembled. In order to dispense the products, the cap 18, 18a is opened and the body 12, 12a is depressed to dispense the two products through the passages 26, 26a in nozzle 16, 16a.

    [0013] It can thus be seen that there has been provided a multiple cavity dispensing package which is less complex, which uses a minimum number of parts, which is less costly to manufacture by using fewer molds and which is easier to assemble.


    Claims

    1. A multiple cavity dispensing package comprising:

    a first hollow, one piece, molded plastic body (12 or 12a) having an open lower end;

    a second hollow plastic body (14 or 14a) having an open upper end; and

    interengaging means (22, 24 or 22a, 24a) in said first plastic body and said second plastic body defining plural pumps, wherein:

    said first plastic body includes an integrally molded nozzle (16 or 16a) having dual outlets (26 or 26a), and an integrally molded cap (18) hinged to said nozzle and closing said outlets,

    said first plastic body includes integrally molded product chambers (24 or 24a) and integrally molded passages extending from said chambers to said outlets of said nozzle; and

    said interengaging means includes piston means in said second plastic body associated with said chambers in said first plastic body, whereby upon relative movement of said first plastic body towards said second plastic body said pistons push the contents of said chambers through said integrally molded passages to dispense the contents of said chambers through said nozzle; characterised in that

    said integrally molded cap has integral plug seals, and

    said pistons are integrally molded with said second plastic body.


     
    2. The multiple cavity dispensing package of claim 1 wherein said integrally molded nozzle (16 or 16a) extends laterally from said second plastic body.
     
    3. The multiple cavity dispensing package of either of claims 1 or 2 wherein said plug seals have a configuration complementary to the dual outlets (26) for sealing receipt into said dual outlets.
     
    4. A method of making a multiple cavity dispensing package comprising:

    integrally molding a first hollow one-piece plastic body (12 or 12a) having an open lower end and including an integral nozzle (16 or 16a) having dual outlets, a cap (18) with plug seals integrally molded on said nozzle and coupled to said nozzle by an integral hinge (20), and product chambers and internal passages in said first plastic body extending from the chambers to the outlets of said nozzle,

    forming a second hollow plastic body (14) having an open upper end, wherein

    piston means (22) are in said second plastic body associated with said chambers (24) in said first plastic body, said piston means and said chambers constituting integral interengaging means defining plural pumps such that said step of integrally molding said first plastic body includes integrally molding said chambers in the form of cylinders in which said pistons are located; and

    assembling said first and second plastic bodies to form a dispensing package which is operable upon relative movement of said second plastic body toward said first plastic body to dispense the contents of said chambers through said nozzle.


     
    5. The method of claim 4 wherein said step of integrally molding said first plastic body is such that said integral nozzle extends laterally from said first plastic body.
     
    6. The method of claim 4 or claim 5 wherein said step of molding said cap comprises integrally molding separate plug seals having a configuration for sealing receipt into the passages through said outlets on said nozzle.
     


    Ansprüche

    1. Mehrkammer-Spenderpackung umfassend:

    einen ersten hohlen einstückig geformten (gegossenen) Kunststoffkörper (12, 12a) mit einem unteren offenen Ende;

    einen zweiten hohlen Kunststoffkörper (14, 14a) mit einem oben offenen Ende; und

    Eingriffsmittel (22, 24; 22a, 24a) im ersten Kunststoffkörper und im zweiten Kunststoffkörper, die Mehrfachpumpen bilden, worin

    der erste Kunststoffkörper eine integral geformte Düse (16, 16a) mit Zweifachauslässen (26, 26a) und eine integral geformte Kappe (18) aufweist, die an der Düse schwenkbar angelenkt ist und deren Auslässe verschließt,

    der erste Kunststoffkörper integral geformte Produktkammern (24, 24a) und integral geformte Kanäle umfasst, die sich von den Kammern zu den Auslässen der Düse erstrecken;

    die Eingriffsmittel Kolbenmittel in dem zweiten Kunststoffkörper umfassen, die den Kammern in dem ersten Kunststoffkörper zugeordnet sind, wobei bei relativer Verschiebung des ersten Kunststoffkörpers zu dem zweiten Kunststoffkörper hin die Kolben den Inhalt der Kammern durch die integral geformten Kanäle drücken, um den Inhalt der Kammer durch die Düse abzugeben;

    dadurch gekennzeichnet,
       dass die integral geformte Kappe integrale stopfenartige Dichtungen aufweist und
       dass die Kolben integral mit dem zweiten Kunststoffkörper geformt sind.
     
    2. Mehrkammer-Spenderpackung nach Anspruch 1,
    worin sich die integral geformte Düse (16, 16a) seitlich von dem zweiten Kunststoffkörper erstreckt.
     
    3. Mehrkammer-Spenderpackung nach Anspruch 1 oder 2,
    worin die stopfenartigen Dichtungen eine Gestaltung komplementär zu den doppelten Auslässen (26) zur abdichtenden Aufnahme in den doppelten Auslässen aufweisen.
     
    4. Verfahren der Herstellung einer Mehrkammer-Spenderpackung, umfassend

    ein erster hohler einstückiger Kunststoffkörper (12, 12a) mit einem unteren offenen Ende und umfassend eine integrale Düse (16, 16a) mit doppelten Auslässen, ferner eine Kappe (18) mit stopfenartigen Dichtungen, die an der Düse integral angeformt werden und mit der Düse über ein integrales Scharnier (20) gekuppelt sind, und Produktkammern sowie innere Kanäle in dem ersten Kunststoffkörper, die sich von den Kammern zu den Auslässen der Düse erstrecken, werden integral (durch gießen) geformt;

    ein zweiter hohler Kunststoffkörper (14) mit einem oberen offenen Ende wird geformt, wobei

    Kolbenmittel (22) in dem zweiten Kunststoffkörper vorgesehen sind und den Kammern (24) in dem ersten Kunststoffkörper zugeordnet sind, wobei die Kolbenmittel und die Kammern integrale ineinandergreifende Mittel darstellen, welche Mehrfachpumpen bilden, so dass der Schritt der integralen Formung des ersten Kunststoffkörpers die integrale Bildung der Kammern in Form von Zylindern einschließt, in welchen die Kolben gelegen sind; und

    die ersten und zweiten Kunststoffkörper werden zur Bildung einer Spenderpackung zusammengebaut, die bei Relativverschiebung des zweiten Kunststoffkörpers zum ersten Kunststoffkörper hin betätigbar ist, um den Inhalt der Kammern durch die Düse abzugeben.


     
    5. Verfahren nach Anspruch 4,
    worin der Schritt der integralen Formung des ersten Kunststoffkörpers so ausgeführt wird, dass die integrale Düse sich seitlich von dem ersten Kunststoffkörper erstreckt.
     
    6. Verfahren nach Anspruch 4 oder 5,
    worin der Schritt der Formung der Kappe die integrale Formung von getrennten stopfenartigen Dichtungen umfasst, die eine Ausbildung zur abdichtenden Aufnahme in den durch die Auslässe der Düse gebildeten Kanälen aufweisen.
     


    Revendications

    1. Emballage distributeur à plusieurs compartiments comprenant :

    un premier corps creux, monobloc, en plastique moulé (12 ou 12a) ayant une extrémité inférieure ouverte ;

    un deuxième corps en plastique creux (14 ou 14a) ayant une extrémité supérieure ouverte ; et

    un moyen d'inter-coopération (22, 24 ou 22a, 24a) dans ledit premier corps en plastique et ledit deuxième corps en plastique définissant plusieurs pompes, dans lequel :

    ledit premier corps en plastique comprend une buse moulée d'un seul tenant (16 ou 16a) ayant des orifices de sortie doubles (26 ou 26a), et un capuchon moulé d'un seul tenant (18) articulé sur ladite buse et fermant lesdits orifices de sortie,

    ledit premier corps en plastique comprend des chambres de produit moulées d'un seul tenant (24 ou 24a) et des passages moulés d'un seul tenant s'étendant desdites chambres auxdits orifices de sortie de ladite buse ; et

    ledit moyen d'inter-coopération comprend un moyen formant piston dans ledit deuxième corps en plastique associé auxdites chambres dudit premier corps en plastique, grâce à quoi, lors du mouvement relatif dudit premier corps en plastique vers ledit deuxième corps en plastique, lesdits pistons poussent le contenu desdites chambres à travers lesdits passages moulés d'un seul tenant pour distribuer le contenu desdites chambres par ladite buse ; caractérisé en ce que

    ledit capuchon moulé d'un seul tenant comporte des joints de bouchon intégrés, et

    lesdits pistons sont moulés d'un seul tenant avec ledit deuxième corps en plastique.


     
    2. Emballage distributeur à plusieurs compartiments selon la revendication 1, dans lequel ladite buse moulée d'un seul tenant (16 ou 16a) s'étend latéralement depuis ledit deuxième corps en plastique.
     
    3. Emballage distributeur à plusieurs compartiments selon l'une quelconque des revendications 1 et 2, dans lequel lesdits joints de bouchon ont une configuration complémentaire aux orifices de sortie doubles (26) afin d'être reçus de manière hermétique dans lesdits orifices de sortie doubles.
     
    4. Procédé de fabrication d'un emballage distributeur à plusieurs compartiments comprenant les opérations consistant à :

    mouler d'un seul tenant un premier corps en plastique creux monobloc (12 ou 12a) ayant une extrémité inférieure ouverte et comprenant une buse moulée d'un seul tenant (16 ou 16a) ayant des orifices de sortie doubles, un capuchon (18) avec des joints de bouchon moulés d'un seul tenant sur ladite buse et accouplé à ladite buse par une charnière intégrée (20), et des chambres de produit et des passages internes dans ledit premier corps en plastique s'étendant des chambres aux orifices de sortie de ladite buse,

    former un deuxième corps en plastique creux (14) ayant une extrémité supérieure ouverte, dans lequel

    des moyens formant piston (22) sont dans ledit deuxième corps en plastique associés auxdites chambres (24) dudit premier corps en plastique, lesdits moyens formant piston et lesdites chambres constituant un moyen d'inter-coopération intégré définissant plusieurs pompes de sorte que ladite étape de moulage d'un seul tenant dudit premier corps en plastique comprend le fait de mouler d'un seul tenant lesdites chambres sous la forme de cylindres dans lesquels sont situés lesdits pistons ; et

    assembler lesdits premier et deuxième corps en plastique pour former un emballage distributeur qui fonctionne lors du mouvement relatif dudit deuxième corps en plastique vers ledit premier corps en plastique pour distribuer le contenu desdites chambres par ladite buse.


     
    5. Procédé selon la revendication 4, dans lequel ladite étape de moulage d'un seul tenant dudit premier corps en plastique est telle que ladite buse intégrée s'étend latéralement depuis ledit premier corps en plastique.
     
    6. Procédé selon la revendication 4 ou 5, dans lequel ladite étape de moulage dudit capuchon comprend le fait de mouler d'un seul tenant des joints de bouchon séparés ayant une configuration leur permettant d'être reçus de manière hermétique dans les passages par lesdits orifices de sortie de ladite buse.
     




    Drawing