CA2049447A1 - Squeeze pack - Google Patents
Squeeze packInfo
- Publication number
- CA2049447A1 CA2049447A1 CA 2049447 CA2049447A CA2049447A1 CA 2049447 A1 CA2049447 A1 CA 2049447A1 CA 2049447 CA2049447 CA 2049447 CA 2049447 A CA2049447 A CA 2049447A CA 2049447 A1 CA2049447 A1 CA 2049447A1
- Authority
- CA
- Canada
- Prior art keywords
- holding means
- pack
- set forth
- container
- opening region
- 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.)
- Abandoned
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
- B05B11/0005—Components or details
- B05B11/0062—Outlet valves actuated by the pressure of the fluid to be sprayed
- B05B11/0072—A valve member forming part of an outlet opening
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- 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
- B05B11/047—Deformable containers producing the flow, e.g. squeeze bottles characterised by the outlet or venting means
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- 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
- B05B11/048—Deformable containers producing the flow, e.g. squeeze bottles characterised by the container, e.g. this latter being surrounded by an enclosure, or the means for deforming it
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS 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
- B65D47/00—Closures with filling and discharging, or with discharging, devices
- B65D47/04—Closures with discharging devices other than pumps
- B65D47/20—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge
- B65D47/2018—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge comprising a valve or like element which is opened or closed by deformation of the container or closure
- B65D47/2056—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge comprising a valve or like element which is opened or closed by deformation of the container or closure lift valve type
- B65D47/2081—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge comprising a valve or like element which is opened or closed by deformation of the container or closure lift valve type in which the deformation raises or lowers the valve port
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS 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
- B65D83/00—Containers or packages with special means for dispensing contents
- B65D83/0055—Containers or packages provided with a flexible bag or a deformable membrane or diaphragm for expelling the contents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS 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
- B65D2205/00—Venting means
Abstract
ABSTRACT OF THE INVENTION
A squeeze pack comprises a substantially dimensionally stable but elastically deformable external container and an easily deformable internal container arranged inside it. A closure means closes off both the intermediate space between the internal and external containers and also the interior of the internal container relative to the external atmosphere and further closes off the interior of the internal container relative to the intermediate space. The closure means has a delivery valve for discharge of filling material from the internal container and a venting valve for the intermediate space. The internal container is carried by a sleeve-like holding means which is arranged between the external container and the closure means and which provides passages communicating the intermediate space with the venting valve.
A squeeze pack comprises a substantially dimensionally stable but elastically deformable external container and an easily deformable internal container arranged inside it. A closure means closes off both the intermediate space between the internal and external containers and also the interior of the internal container relative to the external atmosphere and further closes off the interior of the internal container relative to the intermediate space. The closure means has a delivery valve for discharge of filling material from the internal container and a venting valve for the intermediate space. The internal container is carried by a sleeve-like holding means which is arranged between the external container and the closure means and which provides passages communicating the intermediate space with the venting valve.
Description
2 ~
The present invention concerns a squeeze pack.
Cne form of squeeze pack for containing material which is to be discharged therefrom by squeezing the pack has at least one closable opening, and comprises an external container which is substantially dimensionally stable but elastically deformable and within which is disposed a plastically deformable bag-like internal container for receivin~ the filling material. The dimensional stability of the external container is so selected that, after it has been compressed, in particular by a manual squeezing force, it can return to its original configuration while, as the internal container comprises an easily deformable, for example foil-like material, under the effect of pressure it can almost entirely collapse and can thus be emptied.
A pack of that kind is to be found for example in European patent specification No 0 190 169 to which reference is expressly directed and which discloses in particular a closure for such packs. The closure is arranged at the opening of the external container and is of such a configuration that it closes off the filling material and the intermediate space between the internal and external containers, relative to the external atmosphere, while also separating the filling material fron the intermediate space between the external and internal containers.
The closure has tw~ valves, a delivery valve and a venting valve.
The delivery valve is in the form of a one-way valve such that it opens when a squeeze pressure is applied to the external container, for example manually, so that the filling material which is thereby put under an increased pressure in the internal container can issue therefrom. The valve also has return means so that it closes when the pressure applied to the external container is released, without air coming into contact to a major extent with the filling material which remains in the pack. The venting valve is also in the form of a one-way valve such that air can pass from the outside into the intermediate space between the internal and external containers when, after discharge 2 ~ t ~
of material fron the pack and after release of the squeezing or pressing force, the external container returns to its original configuration and thus produces a reduced pressure in the intermediate space.
When a pressure is applied to the external container, for example by virtue of the pack being manually squeezed, when the pack is in a full or only partly emptied condition, the filling material in the internal container is directly compressed and passes through passages disposed within the closure arrangement to the delivery valve which then opens. If on the other hand a substantial amount of material has already been taken fron the pack, the air in the intermediate space between the internal and external containers is compressed due to the application of pressure to the external container, and, as that air cannot escape through the venting valve, it compresses the internal container whereby the filling material is conveyed towards the delivery valve and issues therefrom. In that situation the closure arrangement may be so designed that the compressed air acts not only on the internal container but also on the return means of the dleivery valve in such a way that opening thereof is assisted.
In the course of progressive emptying of the pack therefore the bag-like internal container will collapse to an ever increasing degree, with a reduction in its volume, while the intermediate space is more and rnore filled with air. The external configuration of the pack is maintained in the non-loaded condition, irespective of the volume of the respective remaining amount of filling material in the internal container, throughout the entire period of use, and it is possible for the same amount of filling rnaterial to be taken from the pack virtually throughout the entire period of use thereof, by applying a pressure of the same magnitude to the pack. There is also the advantage that the filling material remains almost entirely closed off relative to the external atmosphere, so that it is possible for example to achieve prolonged non-perishability of the filling rnaterial, even without preservatives.
20a~9~7 The pack of European patent specification No 0 190 169 suffers from the disadvantage however that the bag-like internal container is mounted directly on the closure. That means that the pack can only be filled with the filling material, after manufacture of the pack, by the material being introduced into the internal container through the delivery valve or by the internal container being filled prior to its being fixed to the closure. The latter course of action would mean that the filled bag would have to be passed through an opening in the external container, which opening must be of a larger cross-section than the bag. That can severely restrict the design option in regard to the pack, which is undesirable in many cases. ~lowever, the possibility of filling the pack after manufacture thereof, through the delivery valve, also does not represent a satisfactory solution as for the filling operation the flow through the delivery valve would have to be lS in the opposite direction toits originally intended direction of opening and similarly, for venting of the air which is displaced from the intermediate space by the filling operation, the flow through the venting valve would have to be in the opposite direction to its originally intended direction of opening.
According to the present invention there is provided a pack comprising a substantially dimensionally stable but elastically deformable external container, a deformable bag-like internal container within the external container for receiving the filling material, a closure means which separates the intermediate space between the internal and external containers and the interior of the internal container from the external atmosphere and the intermediate space from the interior of the internal container, and which includes a delivery valve for discharge of filling material from the interior of the internal container and a venting valve for communicating the intermediate space with the external atmosphere, a holding means to which the internal container is sealingly fixed, the holding means being arranged in the region of the opening of the external container 2 ~ 7 and having at least one opening for communicating the interior of the internal container with the delivery valve, and at least one through passage being provided between the holding means and the wall of the said opening region of the external container for co~nunicating the intermediate space with the venting valve of the closure means.
It will be seen therefore that disposed between the external container and the closure is a holding means to which the bag-like interna] container is secured. The holding means is preferably substantially sleeve-like and is of such a configuration that its external shape corresponds at least over a portion to the internal contour of the corresponding portion of the region of the opening of the external container, so that it can be inserted into same. In most cases the opening region is in the fonm of a cylindrical, projec-ting neck of a bottle-like container so that the holding means is substantially of a hollow-cylindrical shape. The internal container is sealingly mounted to the end region of the holding means, which is towards the inside of the pack, so that the filling material can only be removed from the internal container through an opening in the holding means. In addition the holding means or the bottle neck accom~odating same is of such a configuration that through passages are provided between the wall of the bottle neck and the holding means, said passages comnunicating with the space between the internal and external containers.
The holding means is braced in position by the closure means and the external container, for example by a screw means which is arranged externally on the neck of the bottle. The closure means may be of such a configuration that the outer opening of the holding means only co-operates with the delivery valve and the through passages between the holding means and the neck of the external container only co-operate with the venting valve.
It is desirable for the venting passages to be formed by recesses which are disposed at the surface of the holding means and/or at the wall of the neck of the external container or bottle. The venting passages for example may also be formed by the holding means, at least over a region of its peripheral surface, being of a cross-sectional shape with flattened regions or being generally of a polygonal cross-sectional shape so that, for example when the neck of the container has a round wall, there are free spaces acting as the venting passages. It will be appreciated in that connection that it is also possible for the internal cross-sectional shape of the neck of the container or bottle to have flat portions of that kind or to be in the form of a polygon, for example a hexagon, so that, when the holding means is of a round or similar cross-sectional shape, venting passages are also formed between the holding means and the wall of the neck of the container. It is desirable for the respective contours of the holding means and the wall of the neck to be such that the holding means which is of smaller cross-sectional dimension at least over a region of its longitudinal extent is guided at least over a portion of said region, at least by virtue of axially extending, linear contact with the wall of the neck, so as to ensure a firm fit.
It may also be desirable or possibly even necessary for the holding means to be positively or form-lockingly fitted into the neck of the container or bottle so that on the one hand the holding means is prevented fram slipping into the container while on the other hand the holding means with the internal container thereon is prevented from twisting within the external container. The positive connection to prevent the holding means from twisting within the external container will be required in particular if the internal bag-like container is to be fixed in a given relative position with respect to the external container. That is the case for example when the external container is of a cross-sectional shape, for example elliptical, which differs fram the round cross-sectional shape in which generally there is no need for orientation of the internal container. Orientation of the internal container will be required for example when, in order to make better use of the space involved in the filled condition, the internal 2~49~7 container is of a cross-sectional shape which substantially corresponds to the internal cross-sectional shape of the external container, or when for example the region of the opening of the pack is not æ ranged centrally on the external container.
The positive locking effect to prevent the holding means from slipping into the container can be provided by at least one radially outwardly pointing projection on the side of the holding means, which is remote from the internal container, so that the resulting cross-sectional dimension of the end region is larger than the internal diameter of the neck of the bottle. The projection may be of such a configuration that it extends over the entire periphery of the respective end region or only over portions thereof.
The positive connection effect to prevent twisting of the holding means may be provided for example by axially extending projections on the wall of the neck of the external container or on the outside surface of the holding means, the projections engaging into corresponding recesses at the surface of the holding means or the wall of the neck of the external container. It may be particul æ ly advantageous for the projections to engage into the recesses which are provided in any case for venting purposes, in which the number of projections is preferably less than the number of recesses, so that the venting cross-section is not substantially impaired. For the purposes of fixing the relative position of the internal container with respect to the external container, it may be desirable for the cross-sectional shape of the holding means and the wall of the neck of the container each to be such that they can only be fitted together in a given position or in symmetrical positions. That can also be achieved by the projections being arranged asymmetrically so that they can only engage into given recesses on the holding means, thereby providing for fixing of the holding means relative to the neck of the container and thus the internal container relative to the external container.
An embodiment of a pack according to the invention will now be described by way of example with reference to the accompanying drawings in which:
Figure 1 is a perspective view of a pack according to the invention, Figure 2 is a view in longitudinal section through the closure means and the opening region of the pack of Figure 1, Figure 3 is a view in section taken along line III-III in Figure 2, Figure 4 is a perspective view of an embodiment of the holding means of the pack, and Figures 5a-g are views in cross-section of other embodiments of the holding means.
Keferring to Figures 1-3, shown therein is a squeeze pack which is in the configuration of a squeeze bottle and which has an internal, easily plastically deformable bag-like container 3 and a stronger or firmer external container 2 which is substantially dimensionally stable but elastically deformable and which has an opening region 17 in the nature of a bottle neck. A closure means 1 is mounted on the region 17 by means of a screw configuration shown at 39 in Figure 2. The internal container 3 is sealingly fixed, for example by glueing or welding, by means of its open end, to a lower region 23 of a substantially hollow-cylindrical sleeve-like holding means 4. The holding means 4 has an upper region 25 which is stepped with respect to the lower region 23 and which is of larger external diameter. The external diameter of the upper region 25 corresponds to the internal diameter of the bottle neck 17 so that the holding means 4 can be fitted into the bottle neck 17 without noticeable clearance. In accordance with the foregoing description, it will be appreciated that other configurations may also be employed.
Provided in the upper region 25 at the external surface thereof are recesses 26 which extend from the step 24 between the upper and lower regions 25, 23, to a peripherally extending projection 21 at the upper end of the holding means 4. m e diameter of the projection 21 is larger than the internal diameter of the bottle neck 17 so that the projection 21 fo.rms an abutment to prevent the holding means 4 from slipping into the external container 2. Provided on the underside 18 of the projection 21 are radially outwardly extending recesses 27 which extend the recesses 26 so that continuous through passages are formed between the wall 19 of the bottle neck 17 and the holding means 4.
Preferably the axial length of the holding means 4 approximately corresponds to the axial extent of the bottle neck 17, while the axial extent of the upper and lower regions 25 and 23 respectively is such that on the one hand the arrangement ensures that the holding means 4 is a stable fit in the bottle neck 17 while on the other hand there is sufficient area for fixing the internal container 3 to the holding means 4. m e external diameter of the lower region 23 of the holding means 4 is such that, after the bag-like internal container 3 is fitted on the outside of the holding means 4, in the installed condition, an annular gap 20 remains between the fixing region in which the internal container 3 is fixed to the holding means 4 and the wall 19 of the external container 2, to conmunicate the recesses 26 with the space 16 between the internal container 3 and the external container 2. It may possibly be desirable for the upper region 25 of the holding means 4 to be longer than the axial extent of the bottle neck 17 so that the recesses 26 open directly into the intermediate space 16. In that respect it is also possible for the internal container 3 to be fitted on the inside or from below to the end of the holding means 4~
m e recesses 27 open into passages 31 in the closure means 1, which on the one hand open into an annular passage 33 which is closed off with respect to the external atmosphere, and which on the other hand are communicated with an annular passage 35 by way of passages 34.
me annular passage 35 is separated from the external atmosphere by way of a resilient sealing lip 11 in such a way that air can only flow from the external atmosphere into the annular passage 35, because of a pressure dlfference. The annular passage 35 and the sealing lip 11 thus form a venting valve, as indicated generally at 7, of the closure means 1.
The sealing lip 11 is a component of a diaphragm member 8 which is fixed in a groove 6 extending around the closure means 1 therein. The diaphragm member 8 also has a sealing lip 9 which defines a substantially circular opening 12 and which co-operates with a projection 41 and an annular passage 13 of the closure means 1, thereby forming a delivery valve, as indicated generally at 5, of the closure means 1. The sealing lip 9 is carried by a wall portion 10 of the dipharagm member 8 which has a return action so that, after termination of the delivery operation, the sealing lip 9 automatically moves from its open position (broken lines) back into its closed position (solid lines).
The annular passage 13 of the closure means 1 communicates by way of the passages 15 therein with the interior 14 of the internal container 3, in which the filling material is accommodated. In that respect the arrangement is such that a lower connecting portion 30 of the closure means 1 projects into the generally round opening of the holding means 4, the external diameter of the connection portion 30 corresponding to the internal diameter of the holding means 4 so that a sealed connection can be made between the tw~ parts. The connecting portion 30 is defined by a step 29 which sits on the peripherally extending projection 21 of the holding means 4; a sealing effect may also be provided at that location between the holding means 4 and the closure means 1. In order to produce a particularly good degree of sealing integrity or a firm fit for the closure means 1 on the holding means 4, it may be desirable for the connecting portion 30 and/or the wall of the holding means 4 to be of a conical or tapered configuration. It may likewise be desirable for the internal surface 19 2 ~ 7 of the neck of the bottle 2 and/or the external surface of the upper region 25 of the holding means 4 to be conical.
For the purpose of sealing off the annular passage 13 which carries the flow of filling material as it is discharged, relative to the annular passage 33 through which air flows, the diaphra~m member 8 carries a seal 43 on a substantially vertical annular portion A2 which bears against an upper connecting portion 32, through which the passage 15 also passes, of the closure means 1. The seal 43 moves up and down with the sealing lip 9, a sufficient sealing action being provided between the annular passages 13 and 33 in any position.
To prevent undesired turning of the holding means 4 with the internal container 3 secured thereto within the external container 2, the bottle neck 17 is provided on its wall 19 with axially extending projections 22 (see Figures 3 and 4) which engage into some of the recesses 26 in the holding means 4. In this example, there are two projections 22 of which only one is visible in Figure 3, and six recesses 26, so that, as described above, a sufficiently large flow cross-section is still available. If the internal container 3 and therewith the holding means 4 has to be fixed in a specific position with respect to the external container 2 or the bottle neck 17, it is possible for the projections 22 and the recesses 26 provided for receiving same in the holding means 4 to be asymmetrically distributed around the respective peripheries so that the holding means 4 can be pushed into the bottle neck 17 only in a given position.
The holding means 4 is fixedly braced to the external container 2 by the closure means 1, by means of a screw configuration 39 arranged on the bottle neck 17 on the outside thereof. Provided at the lower end of the bottle neck 17 is a peripherally extending projection 37 which, with the bottcm surface 38 of the closure means 1, forms a seal which separates the passage 31 and thus the intermediate space 16 frcm the external atmosphere.
2~9~
Figures 5a-g show other cross-sectional shapes of the holding means 4 or internal cross-sectional shapes of the opening region 17, in which respective passages 26a-g are defined when the holding means 4 is fitted into the opening region 17.
In Figure 5a, the holding means 4 is provided with four regular flat portions defining four passages 26a, while the cross-section of the holding means in Figure 5b corresponds to a regular hexagon defining passage 26b. In the embodiment shown in Figure 5c, provided on the outside surface of the holding means 4 are axially extending projections which bear against the inside wall surface 19 of the opening region, leaving passages 26c. It is also possible for the surface of the holding means 4 to have part-spherical projections which in the inserted condition of the holding means 4 bear against the inside wall 19 of the opening region 17 and guarantee a sufficient guidance effect for the holding means 4.
In the embodiments shown in Figures 5d and 5e, the external cross-sectional shape of the holding means 4 is circular while the wall 19 of the opening region has flat portions and projections respectively, which bear against the external surface of the holding means, defining passages 26d and 26e. It will be appreciated that it is also possible for flat portions, projections and recesses to be provided in side-by-side relationship on the outside of the holding means 4 and/or the inside wall 19 of the opening region 17, in order to give for example respective asymnetrical cross-sectional shapes which permit the holding means 4 to be inserted into the opening region 17 only in one position or in predetermined positions.
In the embodiment shown in ~igure 5f the cross-sectional dimension of the holding means 4 is so selected that it can be fitted into the opening region 17, leaving an annular gap 26f. Centering of a holding means 4 of that configuration, in the opening region 17, can be effected for example by means of the connecting portion 30 on the closure means 1 or by virtue of the closure means 1 being of a suitable 2~9`~7 configuration in the region which co-operates with the projection 21 on the holding means 4. In that arrangement, a positive locking effect to prevent twisting of the closure means 1 can be achieved by means of suitable projections and/or recesses on the inside of the holding means 4 and/or the connecting portion 30 or the projection 21.
In Figure 5g one recess in the holding means 4 is larger than the others. By virtue of a projection 22g of suitable size on the wall 19 of the opening region 17, that arrangement can thus provide in a simple fashion that the holding means 4 can only be fitted into the opening region 17 in a given position of rotational orientation.
For the purposes of discharging the filling material from the pack, the external container 2 is compressed for example in the direction indicated by the arrows F in Figure 1, with the result that the air in the intermediate space 16 is compressed and compresses the easily deformable internal container 3 so that the material therein passes through the holding means 4 by way of the passages 15 and 13 to the opening 12 at which it issues from the pack. The air which is compressed in the intermediate space 16 also passes into the annular passage 33 by way of the gap 20, the recesses 26, 27 and the passages 31. In the annular passage 33 the air presses against the diaphragm member 8 which consequently moves upwardly, in which case the sealing lip 9 comes out of engagement with the projection 41, whereby the movement for opening of the delivery valve 5 is assisted. In that situation the compressed air cannot escape through the passages 34, 35 as the sealing lip 11 is so positioned against the wall of the annular passage 35 that the sealing action of the lip 11 is increased by the applied pressure. When filling material is first taken from the pack or when the pack is still in an almost completely full condition, it is perhaps possible for compression of the pack to act directly on the internal container 3, but in that situation the basic mode of operation is still the same, as described above.
2 ~
When the s~ueeze pressure applied to the pack is released or by virtue of relief of the pressure of the air in the intermediate space 16 by virtue of the amount of filling material discharged, which correspo,nds to an increase in the volume of the intermediate space 16, the sealing lip 9 is moved into its closure position by virtue of the return force of the wall portion 10, whereby the delivery valve 5 is closed without a major amount of air being able to reach the filling material within the pack. When the external container 2 returns to its original configuration, a reduced pressure occurs in the intermediate space 16 so that the pressure drop occurring causes air to flow into the intermediate space 16 by way of the sealing lip 11, the passages 35, 34, the recesses 27, 26 and the gap 20. In that situation the volume of the air flowing into the intermediate space 16 a-t least approximately corresponds to the volume of the filling material taken from the pack. After the next operation of taking material from the pack, a corresponding amount of airagain passes into the intermediate space 16 with the result that the easily deformable internal container 3 is progressively increasingly collapsed until it is almost entirely emptied. In that respect it may be desirable and possible also necessary to provide means which cause defined collapse of the internal container so that improved emptying can be achieved.
It will be noted that the above-described pack in accordance with the invention can be filled by the filling material being passed into the internal container 3 through the opening of the holding means 4 after the latter has been pushed, with the possibly partially collapsed internal container, into the neck 17 of the external container. After the filling operation the closure means 1 is fitted whereby the holding means 4 is secured in its position and the pack is closed. It will be apparent that this mode of filling operation has major advantages, for example the closure remains completely unused until filling material is first taken fram the pack, and it can be sealed for example upon production of the closure means. In addition, handling of the bag-like ~9~
internal container 3 in regard to production and filling thereof is improved and simplified by virtue of its being carried on the holding means 4 as for example automatic handling means can grip the holding means more easily than a bag-like container. In addition the pack and more particularly the external container may now have an opening whose cross-section is smaller than the cross-section of the filled internal container, so as to avoid a restriction in that respect in terms of the pack design options.
It will be appreciated that the above-described configurations have been set forth solely by way of example of the invention and that various alterations and modifications may be made therein without thereby departing from the scope of the invention.
The present invention concerns a squeeze pack.
Cne form of squeeze pack for containing material which is to be discharged therefrom by squeezing the pack has at least one closable opening, and comprises an external container which is substantially dimensionally stable but elastically deformable and within which is disposed a plastically deformable bag-like internal container for receivin~ the filling material. The dimensional stability of the external container is so selected that, after it has been compressed, in particular by a manual squeezing force, it can return to its original configuration while, as the internal container comprises an easily deformable, for example foil-like material, under the effect of pressure it can almost entirely collapse and can thus be emptied.
A pack of that kind is to be found for example in European patent specification No 0 190 169 to which reference is expressly directed and which discloses in particular a closure for such packs. The closure is arranged at the opening of the external container and is of such a configuration that it closes off the filling material and the intermediate space between the internal and external containers, relative to the external atmosphere, while also separating the filling material fron the intermediate space between the external and internal containers.
The closure has tw~ valves, a delivery valve and a venting valve.
The delivery valve is in the form of a one-way valve such that it opens when a squeeze pressure is applied to the external container, for example manually, so that the filling material which is thereby put under an increased pressure in the internal container can issue therefrom. The valve also has return means so that it closes when the pressure applied to the external container is released, without air coming into contact to a major extent with the filling material which remains in the pack. The venting valve is also in the form of a one-way valve such that air can pass from the outside into the intermediate space between the internal and external containers when, after discharge 2 ~ t ~
of material fron the pack and after release of the squeezing or pressing force, the external container returns to its original configuration and thus produces a reduced pressure in the intermediate space.
When a pressure is applied to the external container, for example by virtue of the pack being manually squeezed, when the pack is in a full or only partly emptied condition, the filling material in the internal container is directly compressed and passes through passages disposed within the closure arrangement to the delivery valve which then opens. If on the other hand a substantial amount of material has already been taken fron the pack, the air in the intermediate space between the internal and external containers is compressed due to the application of pressure to the external container, and, as that air cannot escape through the venting valve, it compresses the internal container whereby the filling material is conveyed towards the delivery valve and issues therefrom. In that situation the closure arrangement may be so designed that the compressed air acts not only on the internal container but also on the return means of the dleivery valve in such a way that opening thereof is assisted.
In the course of progressive emptying of the pack therefore the bag-like internal container will collapse to an ever increasing degree, with a reduction in its volume, while the intermediate space is more and rnore filled with air. The external configuration of the pack is maintained in the non-loaded condition, irespective of the volume of the respective remaining amount of filling material in the internal container, throughout the entire period of use, and it is possible for the same amount of filling rnaterial to be taken from the pack virtually throughout the entire period of use thereof, by applying a pressure of the same magnitude to the pack. There is also the advantage that the filling material remains almost entirely closed off relative to the external atmosphere, so that it is possible for example to achieve prolonged non-perishability of the filling rnaterial, even without preservatives.
20a~9~7 The pack of European patent specification No 0 190 169 suffers from the disadvantage however that the bag-like internal container is mounted directly on the closure. That means that the pack can only be filled with the filling material, after manufacture of the pack, by the material being introduced into the internal container through the delivery valve or by the internal container being filled prior to its being fixed to the closure. The latter course of action would mean that the filled bag would have to be passed through an opening in the external container, which opening must be of a larger cross-section than the bag. That can severely restrict the design option in regard to the pack, which is undesirable in many cases. ~lowever, the possibility of filling the pack after manufacture thereof, through the delivery valve, also does not represent a satisfactory solution as for the filling operation the flow through the delivery valve would have to be lS in the opposite direction toits originally intended direction of opening and similarly, for venting of the air which is displaced from the intermediate space by the filling operation, the flow through the venting valve would have to be in the opposite direction to its originally intended direction of opening.
According to the present invention there is provided a pack comprising a substantially dimensionally stable but elastically deformable external container, a deformable bag-like internal container within the external container for receiving the filling material, a closure means which separates the intermediate space between the internal and external containers and the interior of the internal container from the external atmosphere and the intermediate space from the interior of the internal container, and which includes a delivery valve for discharge of filling material from the interior of the internal container and a venting valve for communicating the intermediate space with the external atmosphere, a holding means to which the internal container is sealingly fixed, the holding means being arranged in the region of the opening of the external container 2 ~ 7 and having at least one opening for communicating the interior of the internal container with the delivery valve, and at least one through passage being provided between the holding means and the wall of the said opening region of the external container for co~nunicating the intermediate space with the venting valve of the closure means.
It will be seen therefore that disposed between the external container and the closure is a holding means to which the bag-like interna] container is secured. The holding means is preferably substantially sleeve-like and is of such a configuration that its external shape corresponds at least over a portion to the internal contour of the corresponding portion of the region of the opening of the external container, so that it can be inserted into same. In most cases the opening region is in the fonm of a cylindrical, projec-ting neck of a bottle-like container so that the holding means is substantially of a hollow-cylindrical shape. The internal container is sealingly mounted to the end region of the holding means, which is towards the inside of the pack, so that the filling material can only be removed from the internal container through an opening in the holding means. In addition the holding means or the bottle neck accom~odating same is of such a configuration that through passages are provided between the wall of the bottle neck and the holding means, said passages comnunicating with the space between the internal and external containers.
The holding means is braced in position by the closure means and the external container, for example by a screw means which is arranged externally on the neck of the bottle. The closure means may be of such a configuration that the outer opening of the holding means only co-operates with the delivery valve and the through passages between the holding means and the neck of the external container only co-operate with the venting valve.
It is desirable for the venting passages to be formed by recesses which are disposed at the surface of the holding means and/or at the wall of the neck of the external container or bottle. The venting passages for example may also be formed by the holding means, at least over a region of its peripheral surface, being of a cross-sectional shape with flattened regions or being generally of a polygonal cross-sectional shape so that, for example when the neck of the container has a round wall, there are free spaces acting as the venting passages. It will be appreciated in that connection that it is also possible for the internal cross-sectional shape of the neck of the container or bottle to have flat portions of that kind or to be in the form of a polygon, for example a hexagon, so that, when the holding means is of a round or similar cross-sectional shape, venting passages are also formed between the holding means and the wall of the neck of the container. It is desirable for the respective contours of the holding means and the wall of the neck to be such that the holding means which is of smaller cross-sectional dimension at least over a region of its longitudinal extent is guided at least over a portion of said region, at least by virtue of axially extending, linear contact with the wall of the neck, so as to ensure a firm fit.
It may also be desirable or possibly even necessary for the holding means to be positively or form-lockingly fitted into the neck of the container or bottle so that on the one hand the holding means is prevented fram slipping into the container while on the other hand the holding means with the internal container thereon is prevented from twisting within the external container. The positive connection to prevent the holding means from twisting within the external container will be required in particular if the internal bag-like container is to be fixed in a given relative position with respect to the external container. That is the case for example when the external container is of a cross-sectional shape, for example elliptical, which differs fram the round cross-sectional shape in which generally there is no need for orientation of the internal container. Orientation of the internal container will be required for example when, in order to make better use of the space involved in the filled condition, the internal 2~49~7 container is of a cross-sectional shape which substantially corresponds to the internal cross-sectional shape of the external container, or when for example the region of the opening of the pack is not æ ranged centrally on the external container.
The positive locking effect to prevent the holding means from slipping into the container can be provided by at least one radially outwardly pointing projection on the side of the holding means, which is remote from the internal container, so that the resulting cross-sectional dimension of the end region is larger than the internal diameter of the neck of the bottle. The projection may be of such a configuration that it extends over the entire periphery of the respective end region or only over portions thereof.
The positive connection effect to prevent twisting of the holding means may be provided for example by axially extending projections on the wall of the neck of the external container or on the outside surface of the holding means, the projections engaging into corresponding recesses at the surface of the holding means or the wall of the neck of the external container. It may be particul æ ly advantageous for the projections to engage into the recesses which are provided in any case for venting purposes, in which the number of projections is preferably less than the number of recesses, so that the venting cross-section is not substantially impaired. For the purposes of fixing the relative position of the internal container with respect to the external container, it may be desirable for the cross-sectional shape of the holding means and the wall of the neck of the container each to be such that they can only be fitted together in a given position or in symmetrical positions. That can also be achieved by the projections being arranged asymmetrically so that they can only engage into given recesses on the holding means, thereby providing for fixing of the holding means relative to the neck of the container and thus the internal container relative to the external container.
An embodiment of a pack according to the invention will now be described by way of example with reference to the accompanying drawings in which:
Figure 1 is a perspective view of a pack according to the invention, Figure 2 is a view in longitudinal section through the closure means and the opening region of the pack of Figure 1, Figure 3 is a view in section taken along line III-III in Figure 2, Figure 4 is a perspective view of an embodiment of the holding means of the pack, and Figures 5a-g are views in cross-section of other embodiments of the holding means.
Keferring to Figures 1-3, shown therein is a squeeze pack which is in the configuration of a squeeze bottle and which has an internal, easily plastically deformable bag-like container 3 and a stronger or firmer external container 2 which is substantially dimensionally stable but elastically deformable and which has an opening region 17 in the nature of a bottle neck. A closure means 1 is mounted on the region 17 by means of a screw configuration shown at 39 in Figure 2. The internal container 3 is sealingly fixed, for example by glueing or welding, by means of its open end, to a lower region 23 of a substantially hollow-cylindrical sleeve-like holding means 4. The holding means 4 has an upper region 25 which is stepped with respect to the lower region 23 and which is of larger external diameter. The external diameter of the upper region 25 corresponds to the internal diameter of the bottle neck 17 so that the holding means 4 can be fitted into the bottle neck 17 without noticeable clearance. In accordance with the foregoing description, it will be appreciated that other configurations may also be employed.
Provided in the upper region 25 at the external surface thereof are recesses 26 which extend from the step 24 between the upper and lower regions 25, 23, to a peripherally extending projection 21 at the upper end of the holding means 4. m e diameter of the projection 21 is larger than the internal diameter of the bottle neck 17 so that the projection 21 fo.rms an abutment to prevent the holding means 4 from slipping into the external container 2. Provided on the underside 18 of the projection 21 are radially outwardly extending recesses 27 which extend the recesses 26 so that continuous through passages are formed between the wall 19 of the bottle neck 17 and the holding means 4.
Preferably the axial length of the holding means 4 approximately corresponds to the axial extent of the bottle neck 17, while the axial extent of the upper and lower regions 25 and 23 respectively is such that on the one hand the arrangement ensures that the holding means 4 is a stable fit in the bottle neck 17 while on the other hand there is sufficient area for fixing the internal container 3 to the holding means 4. m e external diameter of the lower region 23 of the holding means 4 is such that, after the bag-like internal container 3 is fitted on the outside of the holding means 4, in the installed condition, an annular gap 20 remains between the fixing region in which the internal container 3 is fixed to the holding means 4 and the wall 19 of the external container 2, to conmunicate the recesses 26 with the space 16 between the internal container 3 and the external container 2. It may possibly be desirable for the upper region 25 of the holding means 4 to be longer than the axial extent of the bottle neck 17 so that the recesses 26 open directly into the intermediate space 16. In that respect it is also possible for the internal container 3 to be fitted on the inside or from below to the end of the holding means 4~
m e recesses 27 open into passages 31 in the closure means 1, which on the one hand open into an annular passage 33 which is closed off with respect to the external atmosphere, and which on the other hand are communicated with an annular passage 35 by way of passages 34.
me annular passage 35 is separated from the external atmosphere by way of a resilient sealing lip 11 in such a way that air can only flow from the external atmosphere into the annular passage 35, because of a pressure dlfference. The annular passage 35 and the sealing lip 11 thus form a venting valve, as indicated generally at 7, of the closure means 1.
The sealing lip 11 is a component of a diaphragm member 8 which is fixed in a groove 6 extending around the closure means 1 therein. The diaphragm member 8 also has a sealing lip 9 which defines a substantially circular opening 12 and which co-operates with a projection 41 and an annular passage 13 of the closure means 1, thereby forming a delivery valve, as indicated generally at 5, of the closure means 1. The sealing lip 9 is carried by a wall portion 10 of the dipharagm member 8 which has a return action so that, after termination of the delivery operation, the sealing lip 9 automatically moves from its open position (broken lines) back into its closed position (solid lines).
The annular passage 13 of the closure means 1 communicates by way of the passages 15 therein with the interior 14 of the internal container 3, in which the filling material is accommodated. In that respect the arrangement is such that a lower connecting portion 30 of the closure means 1 projects into the generally round opening of the holding means 4, the external diameter of the connection portion 30 corresponding to the internal diameter of the holding means 4 so that a sealed connection can be made between the tw~ parts. The connecting portion 30 is defined by a step 29 which sits on the peripherally extending projection 21 of the holding means 4; a sealing effect may also be provided at that location between the holding means 4 and the closure means 1. In order to produce a particularly good degree of sealing integrity or a firm fit for the closure means 1 on the holding means 4, it may be desirable for the connecting portion 30 and/or the wall of the holding means 4 to be of a conical or tapered configuration. It may likewise be desirable for the internal surface 19 2 ~ 7 of the neck of the bottle 2 and/or the external surface of the upper region 25 of the holding means 4 to be conical.
For the purpose of sealing off the annular passage 13 which carries the flow of filling material as it is discharged, relative to the annular passage 33 through which air flows, the diaphra~m member 8 carries a seal 43 on a substantially vertical annular portion A2 which bears against an upper connecting portion 32, through which the passage 15 also passes, of the closure means 1. The seal 43 moves up and down with the sealing lip 9, a sufficient sealing action being provided between the annular passages 13 and 33 in any position.
To prevent undesired turning of the holding means 4 with the internal container 3 secured thereto within the external container 2, the bottle neck 17 is provided on its wall 19 with axially extending projections 22 (see Figures 3 and 4) which engage into some of the recesses 26 in the holding means 4. In this example, there are two projections 22 of which only one is visible in Figure 3, and six recesses 26, so that, as described above, a sufficiently large flow cross-section is still available. If the internal container 3 and therewith the holding means 4 has to be fixed in a specific position with respect to the external container 2 or the bottle neck 17, it is possible for the projections 22 and the recesses 26 provided for receiving same in the holding means 4 to be asymmetrically distributed around the respective peripheries so that the holding means 4 can be pushed into the bottle neck 17 only in a given position.
The holding means 4 is fixedly braced to the external container 2 by the closure means 1, by means of a screw configuration 39 arranged on the bottle neck 17 on the outside thereof. Provided at the lower end of the bottle neck 17 is a peripherally extending projection 37 which, with the bottcm surface 38 of the closure means 1, forms a seal which separates the passage 31 and thus the intermediate space 16 frcm the external atmosphere.
2~9~
Figures 5a-g show other cross-sectional shapes of the holding means 4 or internal cross-sectional shapes of the opening region 17, in which respective passages 26a-g are defined when the holding means 4 is fitted into the opening region 17.
In Figure 5a, the holding means 4 is provided with four regular flat portions defining four passages 26a, while the cross-section of the holding means in Figure 5b corresponds to a regular hexagon defining passage 26b. In the embodiment shown in Figure 5c, provided on the outside surface of the holding means 4 are axially extending projections which bear against the inside wall surface 19 of the opening region, leaving passages 26c. It is also possible for the surface of the holding means 4 to have part-spherical projections which in the inserted condition of the holding means 4 bear against the inside wall 19 of the opening region 17 and guarantee a sufficient guidance effect for the holding means 4.
In the embodiments shown in Figures 5d and 5e, the external cross-sectional shape of the holding means 4 is circular while the wall 19 of the opening region has flat portions and projections respectively, which bear against the external surface of the holding means, defining passages 26d and 26e. It will be appreciated that it is also possible for flat portions, projections and recesses to be provided in side-by-side relationship on the outside of the holding means 4 and/or the inside wall 19 of the opening region 17, in order to give for example respective asymnetrical cross-sectional shapes which permit the holding means 4 to be inserted into the opening region 17 only in one position or in predetermined positions.
In the embodiment shown in ~igure 5f the cross-sectional dimension of the holding means 4 is so selected that it can be fitted into the opening region 17, leaving an annular gap 26f. Centering of a holding means 4 of that configuration, in the opening region 17, can be effected for example by means of the connecting portion 30 on the closure means 1 or by virtue of the closure means 1 being of a suitable 2~9`~7 configuration in the region which co-operates with the projection 21 on the holding means 4. In that arrangement, a positive locking effect to prevent twisting of the closure means 1 can be achieved by means of suitable projections and/or recesses on the inside of the holding means 4 and/or the connecting portion 30 or the projection 21.
In Figure 5g one recess in the holding means 4 is larger than the others. By virtue of a projection 22g of suitable size on the wall 19 of the opening region 17, that arrangement can thus provide in a simple fashion that the holding means 4 can only be fitted into the opening region 17 in a given position of rotational orientation.
For the purposes of discharging the filling material from the pack, the external container 2 is compressed for example in the direction indicated by the arrows F in Figure 1, with the result that the air in the intermediate space 16 is compressed and compresses the easily deformable internal container 3 so that the material therein passes through the holding means 4 by way of the passages 15 and 13 to the opening 12 at which it issues from the pack. The air which is compressed in the intermediate space 16 also passes into the annular passage 33 by way of the gap 20, the recesses 26, 27 and the passages 31. In the annular passage 33 the air presses against the diaphragm member 8 which consequently moves upwardly, in which case the sealing lip 9 comes out of engagement with the projection 41, whereby the movement for opening of the delivery valve 5 is assisted. In that situation the compressed air cannot escape through the passages 34, 35 as the sealing lip 11 is so positioned against the wall of the annular passage 35 that the sealing action of the lip 11 is increased by the applied pressure. When filling material is first taken from the pack or when the pack is still in an almost completely full condition, it is perhaps possible for compression of the pack to act directly on the internal container 3, but in that situation the basic mode of operation is still the same, as described above.
2 ~
When the s~ueeze pressure applied to the pack is released or by virtue of relief of the pressure of the air in the intermediate space 16 by virtue of the amount of filling material discharged, which correspo,nds to an increase in the volume of the intermediate space 16, the sealing lip 9 is moved into its closure position by virtue of the return force of the wall portion 10, whereby the delivery valve 5 is closed without a major amount of air being able to reach the filling material within the pack. When the external container 2 returns to its original configuration, a reduced pressure occurs in the intermediate space 16 so that the pressure drop occurring causes air to flow into the intermediate space 16 by way of the sealing lip 11, the passages 35, 34, the recesses 27, 26 and the gap 20. In that situation the volume of the air flowing into the intermediate space 16 a-t least approximately corresponds to the volume of the filling material taken from the pack. After the next operation of taking material from the pack, a corresponding amount of airagain passes into the intermediate space 16 with the result that the easily deformable internal container 3 is progressively increasingly collapsed until it is almost entirely emptied. In that respect it may be desirable and possible also necessary to provide means which cause defined collapse of the internal container so that improved emptying can be achieved.
It will be noted that the above-described pack in accordance with the invention can be filled by the filling material being passed into the internal container 3 through the opening of the holding means 4 after the latter has been pushed, with the possibly partially collapsed internal container, into the neck 17 of the external container. After the filling operation the closure means 1 is fitted whereby the holding means 4 is secured in its position and the pack is closed. It will be apparent that this mode of filling operation has major advantages, for example the closure remains completely unused until filling material is first taken fram the pack, and it can be sealed for example upon production of the closure means. In addition, handling of the bag-like ~9~
internal container 3 in regard to production and filling thereof is improved and simplified by virtue of its being carried on the holding means 4 as for example automatic handling means can grip the holding means more easily than a bag-like container. In addition the pack and more particularly the external container may now have an opening whose cross-section is smaller than the cross-section of the filled internal container, so as to avoid a restriction in that respect in terms of the pack design options.
It will be appreciated that the above-described configurations have been set forth solely by way of example of the invention and that various alterations and modifications may be made therein without thereby departing from the scope of the invention.
Claims (25)
1. A pack comprising a substantially dimensionally stable but elastically deformable external container, a deformable bag-like internal container within the external container for receiving the filling material, a closure means which separates the intermediate space between the internal and external containers and the interior of the internal container from the external atmosphere and the intermediate space from the interior of the internal container, and which includes a delivery valve for discharge of filling material from the interior of the internal container and a venting valve for communicating the intermediate space with the external atmosphere, a holding means to which the internal container is sealingly fixed, the holding means being arranged in the region of the opening of the external container and having at least one opening for communicating the interior of the internal container with the delivery valve, and at least one through passage being provided between the holding means and the wall of the said opening region of the external container for communicating the intermediate space with the venting valve of the closure means.
2. A pack as set forth in claim 1 wherein the at least one through passage between the holding means and the wall of the opening region is formed by recess means provided at at least one of the outside surface of the holding means and the wall of the opening region.
3. A pack as set forth in claim 1 wherein over at least a portion of its outside surface the holding means is of a cross-sectional shape with at least one flattened region.
4. A pack as set forth in claim 1 wherein over at least a portion of its outside surface the holding means is of a polygonal cross-sectional shape.
5. A pack as set forth in claim 1 wherein over at least a portion of its inside surface the opening region is of a cross-sectional shape with at least one flattened region.
6. A pack as set forth in claim 1 wherein over at least a portion of its inside surface the opening region is of a polygonal cross-sectional shape.
7. A pack as set forth in claim 1 wherein over at least a portion of its longitudinal extent the holding means is in contact within the opening region with at least one axially extending linear region.
8. A pack as set forth in claim 1 wherein the internal container is sealingly secured to the holding means by means of adhesive.
9. A pack as set forth in claim 1 wherein the internal container is sealingly secured to the holding means by means of welding.
10. A pack as set forth in claim 1 wherein the axial extent of the holding means substantially corresponds to the axial extent of the opening region.
11. A pack as set forth in claim 1 wherein over at least a portion of its axial longitudinal extent the holding means is of an external cross-sectional shape which substantially corresponds to the internal cross-sectional shape of the associated part of the opening region and is of such a dimension that the holding means can be inserted into the opening region without noticeable clearance.
12. A pack as set forth in claim 1 wherein the holding means is substantially sleeve-like.
13. A pack as set forth in claim 1 wherein the internal cross-section of the opening region is circular and the holding means is of a hollow-cylindrical configuration.
14. A pack as set forth in claim 1 wherein over at least a portion of its axial extent on which said internal container is disposed the holding means is of a smaller cross-sectional dimension than the opening region so that at least one gap remains between said wall and the external surface of the internal container.
15. A pack as set forth in claim 1 wherein at the end remote from the internal container the holding means has at least one projection whereby the resulting external cross-sectional dimension is greater than that of said opening region.
16. A pack as set forth in claim 15 wherein the projection extends around the holding means.
17. A pack as set forth in claim 14 wherein the projection has at least one recess which connects with said through passage.
18. A pack as set forth in claim 1 including means for positively holding the holding means to prevent turning thereof in said opening region.
19. A pack as set forth in claim 1 wherein the positive holding means comprises at least one recess in the holding means and at least one projection on the wall of the opening region engageable into the recess in the holding means.
20. A pack as set forth in claim 18 wherein the positive holding means comprises at least one recess in the opening region and at least one projection on the outside of the holding means engageable into the recess in the opening region.
21. A pack as set forth in claim 19 comprising a plurality of said projections and said recesses wherein the number of projections is smaller than the number of recesses.
22. A pack as set forth in claim 20 comprising a plurality of said projections and said recesses wherein the number of projections is smaller than the number of recesses.
23. A pack as set forth in claim 17 wherein the positive holding means are adapted to permit the holding means to be inserted into the opening region only in a given position relative thereto.
24. A pack as set forth in claim 17 wherein the positive holding means are adapted to permit the holding means to be inserted into the opening region only in given symmetrical positions relative thereto.
25. A pack as set forth in claim 1 wherein the opening cross-section of the pack is smaller than the cross-section of the internal container in the filled condition.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19904027539 DE4027539A1 (en) | 1990-08-31 | 1990-08-31 | Squeeze bottle with inner bag |
| DEP4027539.6 | 1990-08-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2049447A1 true CA2049447A1 (en) | 1992-03-01 |
Family
ID=6413284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2049447 Abandoned CA2049447A1 (en) | 1990-08-31 | 1991-08-20 | Squeeze pack |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0473994A3 (en) |
| AU (1) | AU8340991A (en) |
| CA (1) | CA2049447A1 (en) |
| DE (1) | DE4027539A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1306314A1 (en) * | 2000-08-01 | 2003-05-02 | Kao Corporation | Cap for double container |
Families Citing this family (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE9113794U1 (en) * | 1991-11-06 | 1992-01-02 | Dralle Gmbh, 2000 Hamburg, De | |
| US5373972A (en) * | 1991-11-15 | 1994-12-20 | Jsp Partners, L.P. | Preservative-free sterile fluid dispensing system |
| US5310094A (en) * | 1991-11-15 | 1994-05-10 | Jsp Partners, L.P. | Preservative free sterile fluid dispensing system |
| US5343901A (en) * | 1993-03-17 | 1994-09-06 | Philip Meshberg | Insertable barrier bag or liner for a narrow neck dispensing container and method of filling such a barrier bag or liner |
| US5305810A (en) * | 1992-05-22 | 1994-04-26 | Philip Meshberg | Apparatus and method for filling and dispensing a highly viscous product from a container |
| EP0763469B1 (en) * | 1992-05-22 | 2000-04-12 | MESHBERG, Philip | Insertable liner for a narrow neck dispensing container and method of filling such a liner through the syphon tube |
| DE4219857A1 (en) * | 1992-06-17 | 1993-12-23 | Perfect Ventil Gmbh | Deformable container for dispensing liquid |
| ES2064293B1 (en) * | 1993-07-16 | 1995-07-16 | Tuboplast Hispania | NON-COLLAPSABLE TUBULAR CONTAINER, PROVIDED WITH A CAP. |
| FR2723356B1 (en) * | 1994-08-08 | 1996-10-18 | Innovation Rech Plastique Sa | DEVICE FOR PACKAGING A PRODUCT WITH MANUAL PUMP FOR DISPENSING IN UNIT DOSES |
| ES2292205T3 (en) | 1997-08-21 | 2008-03-01 | Nouri E. Hakim | CONTAINER ANTIDERRAME. |
| US6357620B1 (en) | 1997-08-21 | 2002-03-19 | Nouri E. Hakim | No-spill drinking cup apparatus |
| JP4455761B2 (en) * | 1998-08-21 | 2010-04-21 | ノーリ、 イー． ハキン、 | Leak-free drinking cup device |
| FR2821766B1 (en) * | 2001-03-07 | 2003-10-24 | Airlessystems | POCKET FLUID COSMETIC PRODUCT DISPENSER |
| JP4006332B2 (en) * | 2002-12-26 | 2007-11-14 | 勝利 増田 | Fluid storage container |
| GB0406568D0 (en) * | 2004-03-24 | 2004-04-28 | Saunders Mark | A liquid dispensing device |
| FR2872137B1 (en) * | 2004-06-24 | 2009-01-23 | Thea Sa Lab | CONTAINER FOR THE CONDITIONING OF A LIQUID WITH A DROPPER FLOW DISTRIBUTOR WITH REVERSIBLE DEFORMATION BY AIR INTAKE |
| US6951295B1 (en) * | 2005-01-18 | 2005-10-04 | Seaquist Closures Foreign, Inc. | Flow control element and dispensing structure incorporating same |
| DE102010009101A1 (en) * | 2010-02-24 | 2011-08-25 | GAPLAST GmbH, 82442 | packaging |
| WO2013053561A1 (en) * | 2011-10-10 | 2013-04-18 | Unilever N.V. | Nozzle assembly |
| FR2999959B1 (en) * | 2012-12-20 | 2015-08-07 | Aptar France Sas | FLUID PRODUCT DISPENSER. |
| EP3257783A1 (en) * | 2016-06-14 | 2017-12-20 | Diatron MI ZRT. | Reagent pack with integrated waste reservoir |
| DE202017002628U1 (en) | 2017-05-16 | 2018-08-17 | Claude Valerius | In its form changeable flexible container |
| DE102017121333B4 (en) | 2017-09-14 | 2019-03-28 | Linhardt Gmbh & Co. Kg | Case packaging |
| EP3984912B1 (en) * | 2020-10-13 | 2023-08-16 | Henkel AG & Co. KGaA | Application device and method for producing an application device |
| DE102022113841A1 (en) | 2022-06-01 | 2023-12-07 | Inotech Kunststofftechnik Gmbh | Method for making a dispenser container |
| DE102023110175A1 (en) | 2022-06-01 | 2023-12-07 | Inotech Kunststofftechnik Gmbh | Dispenser container |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5025957A (en) * | 1988-10-07 | 1991-06-25 | Ryder International Corp. | Liquid dispenser nozzle assembly |
-
1990
- 1990-08-31 DE DE19904027539 patent/DE4027539A1/en not_active Withdrawn
-
1991
- 1991-08-16 EP EP19910113727 patent/EP0473994A3/en not_active Withdrawn
- 1991-08-20 CA CA 2049447 patent/CA2049447A1/en not_active Abandoned
- 1991-08-27 AU AU83409/91A patent/AU8340991A/en not_active Abandoned
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1306314A1 (en) * | 2000-08-01 | 2003-05-02 | Kao Corporation | Cap for double container |
| EP1306314A4 (en) * | 2000-08-01 | 2009-05-20 | Kao Corp | Cap for double container |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0473994A3 (en) | 1992-03-25 |
| EP0473994A2 (en) | 1992-03-11 |
| DE4027539A1 (en) | 1992-03-05 |
| AU8340991A (en) | 1992-03-05 |
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