CH368615A - Process for manufacturing plastic bottles with several compartments, and bottle obtained by this process - Google Patents

Process for manufacturing plastic bottles with several compartments, and bottle obtained by this process

Info

Publication number
CH368615A
CH368615A CH653360A CH653360A CH368615A CH 368615 A CH368615 A CH 368615A CH 653360 A CH653360 A CH 653360A CH 653360 A CH653360 A CH 653360A CH 368615 A CH368615 A CH 368615A
Authority
CH
Switzerland
Prior art keywords
bottle
wall
tube
compartments
neck
Prior art date
Application number
CH653360A
Other languages
French (fr)
Inventor
Bailey James
Original Assignee
Plax Ag
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
Priority claimed from US686658A external-priority patent/US2951264A/en
Application filed by Plax Ag filed Critical Plax Ag
Priority to CH653360A priority Critical patent/CH368615A/en
Priority to FR829473A priority patent/FR1258792A/en
Publication of CH368615A publication Critical patent/CH368615A/en

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D1/00Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
    • B65D1/32Containers adapted to be temporarily deformed by external pressure to expel contents
    • B65D1/323Containers adapted to be temporarily deformed by external pressure to expel contents the container comprising internally a dip tube through which the contents pass
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/02Combined blow-moulding and manufacture of the preform or the parison
    • B29C49/04Extrusion blow-moulding
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/42Component parts, details or accessories; Auxiliary operations
    • B29C49/48Moulds
    • B29C49/4802Moulds with means for locally compressing part(s) of the parison in the main blowing cavity
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/42Component parts, details or accessories; Auxiliary operations
    • B29C49/48Moulds
    • B29C49/54Moulds for undercut articles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C57/00Shaping of tube ends, e.g. flanging, belling or closing; Apparatus therefor, e.g. collapsible mandrels
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D1/00Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
    • B65D1/02Bottles or similar containers with necks or like restricted apertures, designed for pouring contents
    • B65D1/04Multi-cavity bottles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/42Component parts, details or accessories; Auxiliary operations
    • B29C49/48Moulds
    • B29C49/4802Moulds with means for locally compressing part(s) of the parison in the main blowing cavity
    • B29C2049/4807Moulds with means for locally compressing part(s) of the parison in the main blowing cavity by movable mould parts in the mould halves
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2949/00Indexing scheme relating to blow-moulding
    • B29C2949/07Preforms or parisons characterised by their configuration
    • B29C2949/074Preforms or parisons characterised by their configuration having ribs or protrusions
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2949/00Indexing scheme relating to blow-moulding
    • B29C2949/07Preforms or parisons characterised by their configuration
    • B29C2949/075Preforms or parisons characterised by their configuration having at least one internal separating wall
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00Other particular articles
    • B29L2031/712Containers; Packaging elements or accessories, Packages
    • B29L2031/7158Bottles

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Ceramic Engineering (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)

Description

  

  
 



  Procédé de fabrication de bouteilles en matière plastique à plusieurs compartiments,
 et bouteille obtenue par ce procédé
 La présente invention concerne un procédé de fabrication de bouteilles en matière plastique à plusieurs compartiments, c'est-à-dire ayant une ou plusieurs parois internes qui divisent l'intérieur de la bouteille en plusieurs compartiments ou réservoirs séparés. Des bouteilles à encre ayant une poche sur   l'un    des côtés et près de la partie supérieure ont été fabriquées en verre ces dernières années.



   Le procédé selon l'invention est caractérisé en ce qu'on extrude un tube en matière plastique, on le pince le long d'une ligne située généralement en direction longitudinale du tube, et on le moule dans un moule par soufflage avec l'extrémité du tube fermée pour former une bouteille ayant au moins deux compartiments internes ouverts vers le goulot de la bouteille.



   Plusieurs formes d'exécution de la bouteille obtenue par le procédé selon l'invention seront décrites en se référant au dessin annexe auquel:
 La fig. 1 est une vue en élévation, en partie en coupe, montrant le pincement d'un tube lors du moulage de la bouteille.



   La fig. 2 est une vue en coupe du moule et de la bouteille.



   La fig. 3 est une vue en coupe le long de la ligne 3-3 de la fig. 1.



   La fig. 4 est une vue en coupe le long de la ligne 4-4 de la fig. 2.



   La fig. 5 est une vue en coupe de la bouteille de la fig. 2 renfermant un liquide et munie d'ajutages d'évacuation du contenu.



   La fig. 6 est une vue en coupe, similaire à la fig. 1, montrant une modification de l'opération de pincement du tube.



   La fig. 7 est une vue en coupe de la bouteille dans un moule fermé, en partant du tube pincé selon la fig. 6.



   La fig. 8 est une vue en coupe le long de la ligne 8-8 de la fig. 6.



   La fig. 9 est une vue en coupe le long de la ligne 9-9 de la fig. 7.



   La fig. 10 est une vue en coupe de la bouteille montrée dans les fig. 7 et 9 munie de dispositifs de fermeture et d'évacuation du contenu, et
 les fig. 11 et 12 sont des vues en coupes similaires à la fig. 9, d'une bouteille à quatre compartiments, illustrant les parois internes de la bouteille.



   A la fig. 5, une bouteille 1 en matière plastique pouvant tre vidée par compression présente des parois latérales 2 et un fond solidaire 3 en mme temps qu'un ajutage de fermeture et évacuation 4 inséré de manière amovible par frottement dans le goulot 6 de la bouteille 1.



   La bouteille 1 est moulée par soufflage en partant d'une matière plastique élastique telle que du polyéthylène, mais d'autres matières plastiques pourront tre utilisées pour la fabrication. Si on le désire, l'ajutage 4 peut tre fabriqué en la mme matière ou bien en une matière plus raide.



   La bouteille 1 présente une paroi interne 7, laquelle avec la paroi latérale 2 divise la bouteille 1 en un compartiment ou réservoir principal 8 et un compartiment ou réservoir plus petit 9 situé en haut sur la paroi latérale 2.



   Lors de la fabrication de la bouteille 1, un segment de tube creux 10 en matière plastique est extrudé, ainsi que montré dans la fig. 1, par une tuyère à extrusion 11 entre des moitiés ouvertes 12a et 12b d'un moule à soufflage 12. Avant de fermer les moitiés de moule 12a et 12b, comme dans la  fig. 2, le tube 10 en matière plastique est pincé au moyen de doigts de pression 13a et 13b, le long d'une ligne qui s'étend en direction généralement longitudinale par rapport au tube. La ligne de pin çage intersecte l'une des parois de la bouteille 1 en un point situé plus bas que l'extrémité supérieure du pincement, située en un point espacé des parois de la bouteille. La paroi de bouteille qui est intersectée peut tre soit le fond 3 (fig. 10), soit la paroi latérale 2 (fig. 1).



     Ainsi    que montré dans la fig. 3, l'action de pincement fait souder de manière permanente la matière plastique tubulaire le long de la ligne de pincement 14 de telle sorte que lorsque les moitiés de moule 12a et 12b sont fermées, le tube 10 peut tre moulé par soufflage pour donner   ia    bouteille à compartiments 1 montrée dans la fig. 2 avec la ligne de pincement soudée formant la paroi interne qui divise la bouteille en deux compartiments séparés 8 et 9, qui sont tous deux ouverts à l'endroit du goulot 6 de la bouteille.

   A mesure que le tube ou paraison 10 est dilaté par l'air ou par un autre fluide de soufflage, la matière plastique le long de la ligne de soudure 14 ou adjacente à cette ligne, est étirée pour former la paroi de la nervure 7, laquelle avec la paroi latérale d'intersection 2 forme le puits séparé de la cavité principale 8 à l'intérieur de la bouteille.



   Lorsqu'une lèvre 15 de la bouteille a été ébarbée, un bouchon ou tampon à rebord 16 peut tre aisément introduit dans le goulot 6 de la bouteille 1 ainsi que montré dans la fig. 5. Un tube d'évacuation 17 passe de l'intérieur du puits 9 à travers le bouchon 16.



   Le petit compartiment peut tre rempli de liquide venant du réservoir principal 8 en faisant basculer la bouteille et ensuite le contenu dosé dans le petit compartiment pourra tre évacué par le tube 17 en comprimant à la main la bouteille 1.



     I1    est bien entendu qu'on pourra construire le bouchon 16 pour avoir une évacuation par pulvérisation ou formation d'un brouillard, ou bien qu'il pourra tre agencé d'une autre manière pour de nombreux usages.



   A la fig. 10, une bouteille en matière plastique 21 pouvant tre vidée par compression comprend des parois latérales 22 et un fond solidaire 23, en mme temps qu'un ajutage de fermeture et évacuation 24 qui est fixé de manière amovible, c'est-à-dire par un filetage à vis 25 formé sur un goulot 26 de la bouteille.



   La bouteille 21 se distingue de la bouteille 1 de la fig. 5 en ce que la paroi interne 27 intersecte le fond 23, et non la paroi latérale 22 de la bouteille, et se prolonge vers le haut vers le plan de la lèvre 28 de la bouteille, de manière à diviser l'intérieur de la bouteille en deux compartiments ou réservoirs identiques 29 et 30, tous deux ouverts vers le goulot 26 de la bouteille.



   Dans la fabrication de la présente bouteille 21, on réalise l'extrusion d'un segment de tube creux
 10 en matière plastique, ainsi que montré dans la fig. 6, par la tuyère d'extrusion 11 entre les moitiés ouvertes 12a et 12b du moule à soufflage 12. Avant la fermeture des moitiés de moule 12a et 12b, comme dans la fig. 7, le tube 10 en matière plastique est pincé par les bords opposés des plaques 31 et 32 le long d'une ligne qui se prolonge longitudinalement sur toute sa longueur depuis le fond jusqu'à la partie supérieure de la cavité du moule.



   Ainsi que montré dans la fig. 8, le pincement fait souder ou réunir autrement de manière permanente la matière plastique tubulaire le long de la ligne de pincement 33.



   A mesure que le tube 10 est dilaté par l'air de soufflage pour le moulage, ou par un autre agent fluide, la matière plastique le long de la ligne de soudure 33 est étirée pour former la paroi 27, laquelle avec la paroi latérale 22 et le fond 23 forme les deux compartiments ou réservoirs 29 et 30 dans la bouteille.



   Lorsque la lèvre 28 et la partie supérieure de la paroi 27 sont ébarbées, I'ajutage 24 est fixé sur la bouteille 21.



   L'ajutage 24 comprend une jupe de serrage à rebord 34 fixée de manière amovible par les filets 25 au goulot de la bouteille et ayant un flasque 35 qui fixe de manière réglable le couvercle 36 sur la lèvre 28 de la bouteille. Un rebord strié 37 permet de faire tourner à la main le couvercle 36 pour aligner un passage d'évacuation 38 soit avec le réservoir 29, soit avec le réservoir 30, lorsque la jupe de serrage 34 est desserrée sur le goulot de la bouteille.



  Ensuite, l'organe 34 peut tre serré et le contenu évacué par le passage 38. Ainsi, on pourra employer la bouteille 21 pour garder et évacuer deux matières différentes. Un couvercle de fermeture amovible 39 ferme le passage 38.



     I1    est bien entendu que quoiqu'on ait illustré un ajutage 24 servant à faire sortir un jet, on pourra si on le désire, avoir un ajutage avec pulvérisation ou évacuation de brouillard, etc.



   Les fig. 11 et 12 montrent une bouteille 41 ayant quatre compartiments séparés 42. Il est bien entendu qu'on pourrait former autant de cavités que l'on veut.



   Ainsi que montré dans la fig. 11, des tiges individuelles 43 ont été insérées par le goulot de la bouteille dans chaque compartiment 42 et, ainsi que montré dans la fig. 12, ces tiges tournent autour de l'axe de la bouteille pendant que la matière plastique est encore à l'état ramolli et sous pression de soufflage dans le moule, de sorte que des séparations 44 sont étirées. Lorsque les séparations 44 sont refroidies, elles cèdent plus facilement à la compression exercée sur la bouteille que lorsqu'elles présentent la forme montrée dans la fig. 11.



   L'espacement des tiges 43 est limité par les dimensions du goulot de la bouteille à travers lequel elles sont insérées et les   extrémites    des tiges peuvent tre quelque peu espacées du fond de la bouteille de manière à laisser de la place pour les sépa  rations afin d'exercer une torsion dans la position montrée dans la fig. 12 et rester encore ancrées dans la position montrée dans la fig. 11 au fond de la bouteille.
 il va sans dire que le tube peut tre tordu après pincement et avant soufflage pour former des compartiments en spirale.



   Un ou plusieurs compartiments plus petits, peuvent tre formés dans un ou plusieurs compartiments principaux 8 (fig. 5) ou 29, 30 (fig. 10), ou 42 (fig.



  11 et 12).



   Des discontinuités dans les mâchoires 31 et 32 laissent des ouvertures dans la paroi de séparation qui sont utiles pour réduire les effets de choc et pour accélérer le mélange du contenu lorsque la bouteille a été comprimée.



   REVENDICATIONS
 I. Procédé de fabrication de bouteilles en matière plastique à plusieurs compartiments, pouvant tre comprimées pour évacuer le contenu, caractérisé en ce qu'on extrude un tube en matière plastique, on le pince le long d'une ligne située généralement en direction longitudinale du tube et on le moule dans un moule par soufflage avec l'extrémité du tube fermée pour former une bouteille ayant au moins deux compartiments internes ouverts vers le goulot de la bouteille.



     II.    Bouteille obtenue par le procédé selon la revendication I.
  



  
 



  Process for manufacturing plastic bottles with several compartments,
 and bottle obtained by this process
 The present invention relates to a method of manufacturing plastic bottles with several compartments, i.e. having one or more internal walls which divide the interior of the bottle into several compartments or separate reservoirs. Ink bottles having a pocket on one side and near the top have been made from glass in recent years.



   The method according to the invention is characterized in that a plastic tube is extruded, it is clamped along a line generally located in the longitudinal direction of the tube, and it is molded in a blow mold with the end from the closed tube to form a bottle having at least two internal compartments open towards the neck of the bottle.



   Several embodiments of the bottle obtained by the process according to the invention will be described with reference to the appended drawing to which:
 Fig. 1 is an elevational view, partly in section, showing the pinching of a tube during the molding of the bottle.



   Fig. 2 is a sectional view of the mold and of the bottle.



   Fig. 3 is a sectional view taken along line 3-3 of FIG. 1.



   Fig. 4 is a sectional view taken along line 4-4 of FIG. 2.



   Fig. 5 is a sectional view of the bottle of FIG. 2 containing a liquid and provided with nozzles for discharging the contents.



   Fig. 6 is a sectional view, similar to FIG. 1, showing a modification of the tube clamping operation.



   Fig. 7 is a sectional view of the bottle in a closed mold, starting from the pinched tube according to FIG. 6.



   Fig. 8 is a sectional view taken along line 8-8 of FIG. 6.



   Fig. 9 is a sectional view taken along line 9-9 of FIG. 7.



   Fig. 10 is a sectional view of the bottle shown in FIGS. 7 and 9 fitted with devices for closing and evacuating the contents, and
 figs. 11 and 12 are sectional views similar to FIG. 9, of a bottle with four compartments, illustrating the internal walls of the bottle.



   In fig. 5, a plastic bottle 1 which can be emptied by compression has side walls 2 and an integral bottom 3 at the same time as a closing and discharge nozzle 4 inserted in a removable manner by friction in the neck 6 of the bottle 1.



   The bottle 1 is blow molded from an elastic plastic material such as polyethylene, but other plastic materials can be used for the production. If desired, the nozzle 4 can be made of the same material or else of a stiffer material.



   The bottle 1 has an inner wall 7, which together with the side wall 2 divides the bottle 1 into a main compartment or tank 8 and a smaller compartment or tank 9 located above on the side wall 2.



   During the manufacture of the bottle 1, a segment of hollow plastic tube 10 is extruded, as shown in FIG. 1, by an extrusion nozzle 11 between open halves 12a and 12b of a blow mold 12. Before closing the mold halves 12a and 12b, as in FIG. 2, the plastic tube 10 is clamped by means of pressure fingers 13a and 13b, along a line which extends in a generally longitudinal direction with respect to the tube. The nip line intersects one of the walls of the bottle 1 at a point located lower than the upper end of the nip, located at a point spaced from the walls of the bottle. The wall of the bottle which is intersected can be either the bottom 3 (fig. 10) or the side wall 2 (fig. 1).



     As shown in fig. 3, the pinching action causes the tubular plastic to be permanently welded along the pinch line 14 so that when the mold halves 12a and 12b are closed, the tube 10 can be blow molded to give ia bottle with compartments 1 shown in fig. 2 with the welded pinch line forming the internal wall which divides the bottle into two separate compartments 8 and 9, which are both open at the location of the neck 6 of the bottle.

   As the tube or parison 10 is expanded by air or other blowing fluid, the plastic material along or adjacent to weld line 14 is stretched to form the wall of rib 7, which with the intersecting side wall 2 forms the well separated from the main cavity 8 inside the bottle.



   When a lip 15 of the bottle has been deburred, a stopper or rimmed plug 16 can easily be inserted into the neck 6 of the bottle 1 as shown in FIG. 5. A drain tube 17 passes from inside the well 9 through the stopper 16.



   The small compartment can be filled with liquid coming from the main reservoir 8 by tilting the bottle and then the content dosed in the small compartment can be evacuated through the tube 17 by compressing the bottle 1 by hand.



     It is understood that the plug 16 could be constructed to have an evacuation by spraying or forming a mist, or else it could be arranged in another way for numerous uses.



   In fig. 10, a plastic bottle 21 which can be emptied by compression comprises side walls 22 and an integral bottom 23, at the same time as a closure and discharge nozzle 24 which is removably fixed, that is to say by a screw thread 25 formed on a neck 26 of the bottle.



   The bottle 21 differs from the bottle 1 of FIG. 5 in that the inner wall 27 intersects the bottom 23, and not the side wall 22 of the bottle, and extends upwards towards the plane of the lip 28 of the bottle, so as to divide the interior of the bottle in two identical compartments or reservoirs 29 and 30, both open towards the neck 26 of the bottle.



   In the manufacture of the present bottle 21, the extrusion of a hollow tube segment is carried out
 10 made of plastic, as shown in FIG. 6, by the extrusion nozzle 11 between the open halves 12a and 12b of the blow mold 12. Before the closing of the mold halves 12a and 12b, as in FIG. 7, the plastic tube 10 is clamped by the opposite edges of the plates 31 and 32 along a line which extends longitudinally over its entire length from the bottom to the top of the mold cavity.



   As shown in fig. 8, the nip causes the tubular plastic to be permanently welded or otherwise united along the nip line 33.



   As the tube 10 is expanded by the molding blowing air, or by other fluid agent, the plastic material along the weld line 33 is stretched to form the wall 27, which together with the side wall 22 and the bottom 23 forms the two compartments or reservoirs 29 and 30 in the bottle.



   When the lip 28 and the upper part of the wall 27 are deburred, the nozzle 24 is fixed on the bottle 21.



   The nozzle 24 includes a flanged clamping skirt 34 removably attached by threads 25 to the neck of the bottle and having a flange 35 which adjustably secures the cover 36 to the lip 28 of the bottle. A ridged rim 37 allows the lid 36 to be rotated by hand to align a discharge passage 38 either with the reservoir 29 or with the reservoir 30, when the clamping skirt 34 is loosened on the neck of the bottle.



  Then, the member 34 can be clamped and the contents evacuated through the passage 38. Thus, the bottle 21 can be used to keep and evacuate two different materials. A removable closing cover 39 closes the passage 38.



     It is understood that although a nozzle 24 serving to release a jet has been illustrated, it is possible, if desired, to have a nozzle with spraying or mist discharge, etc.



   Figs. 11 and 12 show a bottle 41 having four separate compartments 42. It is understood that one could form as many cavities as one wishes.



   As shown in fig. 11, individual rods 43 have been inserted through the neck of the bottle into each compartment 42 and, as shown in fig. 12, these rods rotate around the axis of the bottle while the plastic is still in a softened state and under blowing pressure in the mold, so that partitions 44 are stretched. When the partitions 44 are cooled, they give way more easily to the compression exerted on the bottle than when they have the shape shown in FIG. 11.



   The spacing of the rods 43 is limited by the dimensions of the neck of the bottle through which they are inserted and the ends of the rods can be somewhat spaced from the bottom of the bottle so as to leave room for the separations in order to 'exert a twist in the position shown in fig. 12 and still remain anchored in the position shown in fig. 11 at the bottom of the bottle.
 it goes without saying that the tube can be twisted after pinching and before blowing to form spiral compartments.



   One or more smaller compartments can be formed in one or more main compartments 8 (fig. 5) or 29, 30 (fig. 10), or 42 (fig.



  11 and 12).



   Discontinuities in the jaws 31 and 32 leave openings in the partition wall which are useful for reducing shock effects and for speeding up mixing of the contents when the bottle has been squeezed.



   CLAIMS
 I. Method for manufacturing plastic bottles with several compartments, which can be compressed in order to evacuate the content, characterized in that a plastic tube is extruded, it is clamped along a line located generally in the longitudinal direction of the tube. tube and molded in a blow mold with the end of the tube closed to form a bottle having at least two internal compartments open towards the neck of the bottle.



     II. Bottle obtained by the process according to claim I.
  

 

Claims (1)

SOUS-REVENDICATIONS 1. Procédé selon la revendication I, caractérisé en ce que l'on fait tourner une partie de la paroi interne pendant qu'elle est à l'état ramolli, par rapport à la paroi externe de la bouteille. SUB-CLAIMS 1. Method according to claim I, characterized in that part of the inner wall is rotated while it is in the softened state, relative to the outer wall of the bottle. 2. Bouteille selon la revendication II, caractérisée en ce que la paroi de la bouteille moulée intersectée par la paroi interne est la paroi latérale de la bouteille et est située hors alignement avec le passage formé dans le goulot de la bouteille. 2. Bottle according to claim II, characterized in that the wall of the molded bottle intersected by the internal wall is the side wall of the bottle and is located out of alignment with the passage formed in the neck of the bottle. 3. Bouteille selon la sous-revendication 2, caractérisée en ce que la bouteille a un compartiment principal et un compartiment plus petit situé à la partie supérieure et à l'intérieur du compartiment principal, ce compartiment plus petit ayant une paroi commune avec le compartiment principal. 3. Bottle according to sub-claim 2, characterized in that the bottle has a main compartment and a smaller compartment located at the top and inside the main compartment, this smaller compartment having a common wall with the compartment. main. 4. Bouteille selon la revendication II, caractérisée en ce que ladite paroi de la bouteille intersectée par la paroi interne est le fond de la bouteille situé à l'opposé de l'ouverture du goulot de la bouteille. 4. Bottle according to claim II, characterized in that said wall of the bottle intersected by the internal wall is the bottom of the bottle located opposite the opening of the neck of the bottle.
CH653360A 1957-09-27 1960-06-08 Process for manufacturing plastic bottles with several compartments, and bottle obtained by this process CH368615A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CH653360A CH368615A (en) 1957-09-27 1960-06-08 Process for manufacturing plastic bottles with several compartments, and bottle obtained by this process
FR829473A FR1258792A (en) 1957-09-27 1960-06-09 Improvements in the manufacture of plastic bottles or the like

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US686658A US2951264A (en) 1957-09-27 1957-09-27 Method of manufacturing multicavity squeeze bottles
CH653360A CH368615A (en) 1957-09-27 1960-06-08 Process for manufacturing plastic bottles with several compartments, and bottle obtained by this process
FR829473A FR1258792A (en) 1957-09-27 1960-06-09 Improvements in the manufacture of plastic bottles or the like

Publications (1)

Publication Number Publication Date
CH368615A true CH368615A (en) 1963-04-15

Family

ID=27175521

Family Applications (1)

Application Number Title Priority Date Filing Date
CH653360A CH368615A (en) 1957-09-27 1960-06-08 Process for manufacturing plastic bottles with several compartments, and bottle obtained by this process

Country Status (2)

Country Link
CH (1) CH368615A (en)
FR (1) FR1258792A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT368463B (en) * 1978-12-21 1982-10-11 Aigner Weinkellerei BOTTLE WITH SEPARATE DEPARTMENTS
EP0444069B1 (en) * 1988-11-16 1993-03-10 Whitbread Plc Plastics bottles and similar containers
GB2420311A (en) * 2004-11-17 2006-05-24 Grabor Plastics Ltd Method of making a container
GB0523382D0 (en) * 2005-11-17 2005-12-28 Polimoon Packaging Ltd Container
FR3124167A1 (en) * 2021-06-22 2022-12-23 Les Vins De Thomas Two compartment bottle

Also Published As

Publication number Publication date
FR1258792A (en) 1961-04-14

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