Individual beverage carton with a straw therein and a method of manufacture

Information

  • Patent Grant
  • 6431434
  • Patent Number
    6,431,434
  • Date Filed
    Thursday, September 23, 1999
    25 years ago
  • Date Issued
    Tuesday, August 13, 2002
    22 years ago
Abstract
A liquid container of plastic coated boxboard, laminated cardboard or the like having a straw therein is disclosed. The container includes a container body, a holder, a straw and a seal. The container has an interior volume and a plurality of exterior walls. The holder is mounted with a liquid and gas tight seal in an exterior wall. The holder has an aperture formed therein. A straw extends through the aperture in the holder with a snug fit. The straw has a stowed position and an in use position. The seal is for sealing the straw in the stowed position with a liquid and gas tight seal thereby sealing the liquid inside the container. A method of manufacturing the container with a straw therein in a continuous form, fill and sealing process is also disclosed.
Description




FIELD OF THE INVENTION




The present invention relates generally to the provision of a drinking straw with an individual beverage carton and in particular to the provision of a drinking straw on the inside of an individual beverage carton and a method of manufacture thereof.




BACKGROUND OF THE INVENTION




Packaged individual beverage cartons of plastic coated paper board sheet material folded into a generally parallelepipedic shape have been made available to consumers for many years and are often referred to as “juice boxes”.




Various arrangements have been proposed to provide a straw with an individual beverage carton. In general, a cylindrical plastic drinking straw is packaged in a separate sealed plastic envelope and attached usually with an adhesive to the outside of the beverage carton. The straw may be straight or it may have an accordion type bend therein. In use, the consumer is required to remove the drinking straw from its envelope and insert it through the packaging of the container at a predetermined place usually on the top of the container, the straw then being ready to allow consumption of the beverage from the container. As the drinking straw once inserted into the beverage carton makes consumption of the beverage possible, conversely consumption of the beverage from the container without the use of the drinking straw is problematic and objectionable.




One disadvantage of the assembly as described above is that the straw has to be inserted into the beverage carton prior to use. In order to insert the drinking straw into the beverage carton the consumer has to pierce a portion of the carton. Typically there is a preferred point of entry or insertion point that can be identified by a round hole in the carton (but not in the foil liner) on its top. However, the consumer has to puncture the foil liner so that the straw has access to the liquid therein. The foil liner can withstand relatively high pressures such that the carton will not readily leak at the insertion point. As the act of inserting the drinking straw through the packaging material at the predetermined place requires considerable force, the beverage carton also needs to be simultaneously held soundly. This holding soundly often means squeezing the beverage carton and therefore there exists the risk that beverage will rapidly vacate the beverage carton either up the straw or around the straw at the insertion point upon insertion, thereby causing the beverage to be spilled. The consumer is at risk of spilling the beverage on themselves or someone or something at hand. This risk is further increased by the fact that a high percentage of these beverages are consumed by children, individuals that may lack some degree of hand coordination or who may consider the spraying of liquid desirable. This, of course, is not desirable or a game to the parent.




Another disadvantage of the current system of attaching the drinking straw and protective plastic envelope to the outside of the beverage carton is that the protective plastic envelope will often merely be discarded as litter. Commonly, removal of the existing drinking straw currently provided with the beverage carton of the previously mentioned type also requires removal of the straw's protective plastic envelope from the outside of the beverage carton to which it is attached when received by the consumer. This leaves the consumer in the possession of the now empty plastic envelope and due to the small size of the plastic envelope and its low weight the consumer is often tempted to discard the plastic envelope as litter. As the empty envelope is manufactured of plastic, the envelope will exist in the environment for some time before breaking down and due to its small size and low weight is not likely to be picked up as garbage.




A still further disadvantage of the current system of attaching the drinking straw and protective plastic envelope to the outside of the beverage carton is that the straw will obscure the writing and art work on one side of the carton. In addition, as the plastic envelope containing the drinking straw is attached to the outside of the beverage carton there exists considerable risk that the plastic envelope and drinking straw will be inadvertently removed from the outside of the beverage carton and lost, placing the consumer in a compromised position when the time comes for the consumption of the beverage from the container.




Some arrangements have been proposed wherein a straw is provided in an individual beverage carton. For example U.S. Pat. No. 5,188,283 issued to Gu on Feb. 23, 1993, shows a straw in four different types of containers. In the parallelepipedic shaped container there is provided a hole in the container through which the straw is positioned. A groove is provided on the inside of the top tuck flap that is in registration with a top portion of the straw when the tuck flap is sealed to the container. Another example of providing a straw in a parallelepipedic shaped container is shown in U.S. Pat. No. 5,482,202 issued to Wen on Jan. 9, 1996. This container has a straw that is attached in the seams of the container and in at least one embodiment the straw extends from a top side edge to the opposed bottom side edge. An alternate approach is shown in U.S. Pat. No. 5,116,105 issued to Hong on May 26, 1992. This container has a short straw or pipette attached to the underside of the top tuck flap which is the extension of the top seam. The short straw is less than half the width of the container and is used more as a pouring spout than a drinking straw. The short straw is on the outside of the container and has to be inserted through the side wall of the container.




Each of these examples of a straw provided in an individual beverage container suffers from disadvantages. The Gu container would be difficult to manufacture. Firstly, the groove would be difficult to form in the top tuck flap. Secondly the top tuck flap with the groove therein would be difficult to seal once the container is filled with liquid. Thirdly the straw, hole and groove arrangement would not be adaptable to the continuous form, fill and seal process that is preferred for the manufacture of parallelepipedic shaped containers. The Wen container similarly would not be adaptable to the continuous form, fill and seal process since a good seal in a seam having a straw therein would be difficult to achieve. Further, a straw in the seam might lead to leakage through the straw. The Hong container provides a pour spout but does not eliminate the necessity of the consumer having to push the short straw or pipette into the container with all of the disadvantages associated therewith and it also has the disadvantage described above that the straw can be easily lost.




As the preferred method of manufacture of existing parallelepipedic plastic coated paper board material beverage cartons, involves a continuous form, fill and seal process, there are limited opportunities for the application of a drinking straw on the inside of the carton, so that the drinking straw may be inside the beverage carton at the time of purchase of the beverage by the consumer.




In general, the form, fill and seal process is composed of the steps of unrolling a preprinted and precreased plastic laminated paper board sheet; forming the sheet into a columnar sleeve; sealing a longitudinal seal along the columnar sleeve; adding the beverage into the sealed columnar sleeve; forming a transverse seal across the columnar sleeve and through the beverage; cutting the package from the columnar sleeve and forming a parallelepipedic carton with folded and fixed tabs.




With beverage cartons having a straw attached thereto, drinking straws that have been previously encased in their protective plastic envelopes are attached to one side of the completed beverage carton.




Accordingly it would be advantageous to provide a drinking straw on the inside of an individual beverage carton. Further it would be advantageous to provide a method of manufacturing an individual beverage carton that includes steps to provide a straw on the inside of the beverage carton.




In light of the previously mentioned limitations of existing beverage cartons of the parallelepipedic plastic coated paper board type, it is an object of the present invention to provide a beverage carton of the parallelepipedic plastic coated paper board type with a drinking straw on the inside of the beverage carton at the time of purchase and therefore also at the time of consumption of the beverage by the consumer.




It is another object of the present invention to provide a drinking straw with the beverage carton that is accessible by the consumer from the outside of the beverage carton.




A number of advantages would be realized by the provision of a straw on the inside of an individual beverage carton, namely the necessity by the consumer of having to insert the drinking straw through the packaging material is eliminated, thereby reducing the risk of accidental spillage of beverage and contamination of the drinking straw; the necessity of a protective envelope for the drinking straw is eliminated, since the drinking straw is present inside the beverage carton at the time of purchase and consumption of the beverage by the consumer; and the risk of having the drinking straw detached from the outside of the container is also eliminated. A further advantage that may be realized by the provision of a straw on the inside of an individual beverage carton is that since the drinking straw does not have to be used to pierce the packaging material, a straw of a thinner more flexible wall design may be used. Alternatively, a straw with a larger diameter and a thinner wall may be used, without increasing the amount of material used in the straw as compared to currently used straws. It is anticipated that a larger diameter straw would allow for easier consumption of the beverage.




SUMMARY OF THE INVENTION




The present invention is disclosed as being a drinking straw, a holder and a removable strip which together are attached to a paper board or plastic sheet material in such a manner that when the sheet is formed into a beverage carton the drinking straw and holder exist inside the beverage carton while the removable strip occurs on the outside of the beverage carton.




Further, the removable strip, holder and drinking straw are arranged so that the removable strip is accessible and removable by the consumer of the beverage and that upon removal of the strip, the upper portion of the drinking straw is exposed while the remainder of the straw is held in place in the beverage carton. The exposed portion of the drinking straw is then available for consumption of the beverage in the usual manner.




The drinking straw, holder and strip are manufactured as a preassembled unit, requiring only attachment of the preassembled unit to the sheet material at the time of formation, filling and sealing of the individual beverage cartons at the packaging facility.




The drinking straw has an overall length just slightly greater than the height of the formed beverage carton and is of a resiliently deformable material of hollow cylindrical shape and may or may not possess a region of corrugations to ease the resilient deformability requirement of the straw material.




The holder has a trough region to accept a portion of the drinking straw, a hole and sleeve region to support the remaining portion of the drinking straw and a flange to allow attachment of the holder to the sheet material of the beverage carton.




The removable strip is made of plastic, foil or the like and is sized to completely cover the trough region of the holder without infringing much of the flange area of the holder while possessing mechanical strength sufficient to resist accidental penetration by foreign objects into the beverage carton.




Further, the removable strip has an extended tab to facilitate removal of the strip by the consumer, that is, by pulling on the tab, the strip would be progressively stripped from the holder. It is recognized that the removable strip could include advertising or promotional material on its upper and/or lower surfaces.




Necessarily, the sheet plastic or paper board material would be cut with an oblong hole at the predetermined place that the drinking straw is to exit the beverage carton, such that attachment of the preassembled unit would occur around the perimeter of the so cut oblong hole on the “inside” side of the sheet material.




In one aspect of the present invention a liquid container of plastic coated boxboard, laminated cardboard or the like having a straw therein is disclosed. The container includes a container body, a holder, a straw and a seal. The container has an interior volume and a plurality of exterior walls. The holder is mounted with a liquid and gas tight seal in an exterior wall. The holder has an aperture formed therein. A straw extends through the aperture in the holder with a snug fit. The straw has a stowed position and an in use position. The seal is for sealing the straw in the stowed position with a liquid and gas tight seal thereby sealing the liquid inside the container.




In another aspect of the present invention a holder for use in a liquid container is disclosed. The holder includes a trough, a flange and a sleeve. The trough has an aperture formed therein dimensioned to receive a straw snugly therein. The flange extends laterally from the trough and is attachable to the carton. The sleeve extends orthogonally from the trough with the distal end thereof encircling the aperture.




In a still further aspect of the present invention a method of manufacturing the container with a straw therein in a continuous form, fill and sealing process is disclosed. The process includes the following steps: unrolling a rolled sheet material being comprised of a plurality of carton sections, each carton section having a hole formed therein; sealingly attaching the holder/straw assembly to the sheet material over said hole; attaching a strip to the holder/straw assembly; forming the sheet into a columnar sleeve; sealing a longitudinal seal along the columnar sleeve; adding the beverage into the sealed columnar sleeve; forming a top and bottom transverse seal across the columnar sleeve and through the beverage; cutting individual cartons from the columnar sleeve; and forming a parallelepipedic carton having a drinking straw therin.




Further features of the invention will be described or will become apparent in the course of the following detailed description.











BRIEF DESCRIPTION OF THE DRAWINGS




The invention will now be described by way of example only, with reference to the accompanying drawings, in which:





FIG. 1

is a perspective view of a carton of the present invention shown with a portion of the side panel broken away;





FIG. 2

is a top view of the holder of the present invention;





FIG. 3

is a partial perspective view of the holder, shown along the line


3





3


of

FIG. 2

;





FIG. 4

is a sectional view of the assembly attached to the inner surface of the sheet material of the carton;





FIG. 5

is a perspective view of the holder, straw and strip assembly of the present invention;





FIG. 6

is a sectional view of the assembly attached to the inner surface of the sheet material showing an alternate arrangement for the strip;





FIG. 7

is a perspective view of the drinking straw;





FIG. 8

is a perspective view of the carton in

FIG. 1

with the strip shown exploded;





FIG. 9

is a perspective view of the carton in

FIG. 1

with the strip removed and the straw raised;





FIG. 10

is an exploded partial perspective view of the assembly of the present invention shown applied to a gable top carton;





FIG. 11

is a perspective view of the assembly of the present invention shown applied to the inner surface of a partially formed gable top carton;





FIG. 12

is a perspective view similar to

FIG. 11

but showing the assembly applied to the outer surface of a partially formed gable top carton;





FIG. 13

is a sectional view of a gable top carton showing the assembly of the present invention attached to the inside surface of the gable top carton;





FIG. 14

is a perspective view of the prior art form, fill and seal process for manufacturing a filled carton;





FIG. 15

is a sectional view of a portion of the form, fill and seal process, of the present invention, thereby manufacturing a filled carton with a straw therein;





FIG. 16

is an enlarged perspective view of that portion of the form, fill and seal process of the present invention wherein the assembly is attached and the straw is moved so as not to interfere with the continuous sheet being formed and sealed into a column;





FIG. 17

is an enlarged perspective view of the continuous sheet with assemblies attached thereto and a straw shown engaging a guide;





FIG. 18

is an enlarged perspective view showing attachment of the assembly to a continuous sheet material;





FIG. 19

is an enlarged perspective view showing attachment of the assembly to the sheet material of the carton;





FIG. 20

is a cross sectional view of a holder/straw assembly of the present invention shown in a side spout of a gable type carton beverage container with an expandable bendable straw positioned therein;





FIG. 21

is an enlarged blown apart broken away perspective view of the holder/straw assembly of

FIG. 20

;





FIG. 22

is an exploded perspective view of an alternative embodiment of the holder/straw assembly of the present invention, shown with a resealable threaded cap and sheet packaging material with a circular cut out hole therein;





FIG. 23

is a perspective view of a holder of the present invention showing an alternate embodiment of an inner portion of holder having a straw integrally attached thereto;





FIG. 24

is a perspective view of an alternate embodiment of the holder, straw and strip assembly of the present invention wherein the holder and straw are integrally attached;





FIG. 25

is a perspective view of an alternate embodiment of the threaded holder of the holder/straw assembly of the present invention, wherein the holder and straw are integrally attached; and





FIG. 26

is a perspective view of an alternate embodiment of the holder/straw assembly shown with a resealable flap.











DETAILED DESCRIPTION OF THE INVENTION




Referring to

FIG. 1

the individual beverage carton of the present invention is shown generally at


30


. The beverage carton


30


includes a straw


32


, a straw holder


34


and a sealing strip


52


.




The holder


34


for the straw


32


is shown in more detail in

FIGS. 2 and 3

and with the straw


32


therein in

FIGS. 4 and 5

. The holder


34


has a trough


36


to accept a portion of the straw


32


, an aperture


38


for the straw


32


to pass therethrough and a sleeve


40


to support the remaining portion of the straw


32


. The holder


34


has a flange


46


around the perimeter of the trough


36


thereby providing a surface for attaching the holder


34


to the material


48


of the beverage carton


30


.




A vent hole


42


is provided in trough


36


to allow atmospheric pressure to gain access into the beverage carton


30


to facilitate consumption of the beverage with the straw


32


by the consumer. Alternatively, the hole


42


need not be provided if there is sufficient clearance between the straw


32


and the aperture


38


of the holder


34


to allow atmospheric pressure to enter the internal volume


44


of the beverage carton


30


. This allows the consumer to suck the beverage up through the straw


32


without creating a vacuum inside the beverage container


30


.




A drinking straw


32


as shown in

FIG. 7

has a region of corrugations


50


to allow flexible manipulation of the straw


32


and to allow bending of the straw


32


without “kinking” or damaging the straw


32


.




Referring to

FIG. 24

an alternate embodiment is shown wherein the straw portion


132


and the holder portion


134


are integrally attached to form a unitary straw/holder


136


. The holder portion


134


has a peripheral flange


138


to allow attachment to the material


48


and strip


52


. A trough


140


is formed in the holder portion to allow the upper portion of the straw portion


132


to be stowed. A vent hole (not shown in

FIG. 24

) is formed in the holder portion of unitary straw/holder


136


to allow atmospheric pressure to enter the container during use. Hereinafter the preferred embodiment of the separate straw


32


and holder


34


will be discussed but it will be appreciated by those skilled in the art that straw


32


and holder


34


could be replaced by unitary straw/holder


136


.




The holder


34


, straw


32


and strip


52


can be preassembled as an assembly


56


shown in FIG.


5


. Referring to

FIG. 4

, preferably, the assembly


56


is attached to the lining


62


of material


48


as described in more detail below. The assembly


56


is attached to the material


48


around the perimeter of an oblong hole


60


that has been precut in the sheet packaging material


48


. The assembly


56


is attached to the lining


62


of the material


48


at the flange


46


of the holder


34


so that there is a liquid and gas tight, mechanically sound seal. For a lining


62


of plastic and a holder


34


also of similar plastic, welding may be used as the method of fastening. It will be appreciated by those skilled in the art that other types of seals may be used to achieve a liquid and gas tight seal that is mechanically sound which would be included within the scope of this invention.





FIGS. 4 and 5

illustrate the straw


32


positioned in the holder


34


and the strip


52


covering the top portion of the straw


32


. The strip


52


is attached to the flange


46


of the holder


34


leaving an extent of the flange


46


uncovered around the perimeter of the strip


52


. A tab


54


which is an extension of the strip


52


may be provided to facilitate removal of the strip


52


by the consumer. The attachment of the strip


52


to the flange


46


is a liquid and gas tight seal which allows for the removal of the strip


52


as the consumer peels the strip


52


off by pulling on tab


54


. Preferably the inside depth of trough


36


of the holder


34


does not exceed the outside diameter of the drinking straw


32


so as to provide a straw


32


that is easily accessed upon removal of the strip


52


by the consumer. In contrast the depth of the trough


36


should not be so small that the straw


32


exerts stress on the strip


52


as it keeps the drinking straw


32


in the stowed position.




Alternatively, referring to

FIG. 6

, the strip


52


could be applied over the trough


36


to the flange


46


of the holder


34


after the holder


34


is attached to the lining


62


of the packaging material


48


and that the strip


52


could also be applied over a portion of the outside of the packaging material


48


around the perimeter of the oblong hole


60


.




Both sides of strip


52


and tab


54


may be used for advertising or promotional material or the like.




Preferably, the unsealed margin


61


of the packaging material


48


at the oblong hole


60


is not exposed to the liquid contents of the finished carton


30


. Accordingly, as shown in

FIG. 4

where the strip


52


is attached with a liquid and gas tight seal to the flange


46


leaving free an extent of the flange


46


, margin


61


is not exposed to the liquid contents. Similarly as shown in

FIG. 6

where the strip


52


is attached with a liquid and gas tight seal to the flange


46


and the material


48


margin


61


is not exposed to the liquid contents. Alternatively margin


61


may be sealed with a plastic coating or the like (not shown). A plastic seal may be attached around oblong hole


60


over flange


46


, prior to attaching strip


52


.





FIG. 1

shows the carton


30


as the consumer would receive it,

FIG. 8

shows carton


30


with the strip


52


removed and with the top portion of the straw


32


accessible but still in the stowed position and further,

FIG. 9

shows the straw


32


raised into the drinking position.




Preferably the finished beverage carton


30


, as shown in

FIGS. 1

,


8


and


9


has the transverse seam


82


at the top of the carton


30


folded so that the longitudinal seam


76


is folded back on itself. This folding arrangement will allow the greatest uninterrupted width at the top of the carton


30


for the application of the assembly


56


.




As a further application of the holder


34


, straw


32


and strip


52


,

FIG. 10

illustrates how the assembly


56


could be adapted for a gable top carton


68


. The assembly


56


could be applied to the inside of the carton


68


before the carton is filled and closed, as shown in

FIG. 11

or alternatively, assembly


56


could be applied to the outside of the carton


68


before the carton is filled and closed, as shown in

FIG. 12. A

filled and closed carton


68


is illustrated in

FIG. 13

with assembly


56


attached to the carton


68


.




As an additional embodiment of the holder and strip, a resealable adaptation is illustrated in

FIGS. 20 and 21

and shown in a gable top carton


68


. Holder assembly


100


shown therein has a removable inner portion


102


and an outer portion


104


. The outer portion


104


has a flange


106


which is attached to the carton


68


. Outer portion


104


has outer threads


108


which are adapted to engage a cap


110


. Inner portion


102


, outer portion


104


and cap


110


are generally circular. Inner portion


102


has a trough


112


and an aperture


114


for receiving straw


32


. A strip


52


is affixed to inner portion


102


over straw


32


.




Referring to

FIG. 21

, the outer portion


104


is positioned in a gable topped carton


68


. The inner portion


102


is positioned in the outer portion


104


. Straw


32


is positioned in inner portion


102


. Strip


52


is attached to inner portion


102


or outer portion


104


. Cap


110


is attached to outer portion


104


.




Assembly of the holder assembly


100


including inner portion


102


, straw


32


and strip


52


in the outer portion


104


could occur either before or after the outer portion


104


is attached to the carton


68


. Inner portion


102


could be positioned in any rotational attitude, either with the trough


112


being horizontal, as in

FIGS. 20 and 21

or sloped, with the aperture


114


either proximate to the upper or lower edge of the outer portion


104


. The strip


52


as discussed above would be attached so as to provide a liquid and gas tight seal.




Referring to

FIG. 22

, holder


116


is similar to holder assembly


100


but there is not a separate outer portion and inner portion. Holder


116


has a flange


118


, outer threads


120


, a trough


122


and an aperture (not shown).




Referring to

FIG. 23

, as an alternative, the inner portion


124


and straw portion


126


could be integrally attached as shown generally at


128


. Similar to the above inner holder


102


described above inner portion


128


would have a press fit into an outer portion


104


. The straw portion


126


would be flexible such that if on installation the straw would touch the bottom of the carton the straw would flex so that the inner portion could still fit tightly into the carton. Straw portion


126


has a bevelled end


130


to minimize the chance of the user sucking on the straw such that it sticks to the bottom of the carton and no liquid can enter therein. Straw


32


could be similarly adapted.




Referring to

FIG. 25

, alternatively the holder portion


152


, straw portion


146


and flange


144


are integrally attached to form a unitary resealable straw/holder


142


. Unitary resealable straw/holder


142


has outer threads


150


for receiving a cap (not shown) thereon and a trough


148


for receiving the upper portion of straw portion


146


in a stowed position. Unitary resealable straw/holder


142


could accept a strip (not shown) as discussed above.




Referring to

FIG. 26

, a further alternate holder and straw assembly


154


embodiment is shown wherein a holder


156


is adapted to include a resealable flap


158


. A living hinge


160


connects the resealable flap


158


to holder


156


. As described above, straw


162


may be separate or integrally attached to the holder. Holder


156


includes a trough


164


for receiving straw


162


in the stowed position and a flange


166


.




It will be appreciated by those skilled in the art that liquid container, holder and straw assembly of the present invention have a number of advantages over the prior art. For example since the straw is placed on the inside of the container prior to the container being purchased by a consumer there will be a reduced likelihood of spillage since the user need not pierce the container with the straw. A further advantage is that the straw will not obscure any printed material that is on the outside of the container. A further advantage is that by providing the straw on the inside of the container there is no longer a need for a protective plastic envelope. The liquid container, holder and straw assembly of the present invention provides an aperture formed in the holder and a straw that fits snugly therein, thereby providing access to the liquid only through the straw. This configuration minimizes the likelihood of spillage during use.




Referring to

FIG. 14

the prior art beverage packaging process for the manufacture of parallelepipedic boxes is shown generally at


70


. The process is a form, fill and seal type process that employs a reel


72


of printed and creased sheet packaging material


48


. Generally the sheet packaging material


48


is of a paper board base laminated on both surfaces with plastic to provide water impermeability. Additional laminations of plastic and aluminum may be used to further improve water and gas impermeability of the sheet material


48


.




The sheet packaging material


48


is taken from the reel


72


, raised and brought into a vertical orientation where the sheet is wrapped into a continuous columnar sleeve


74


and sealed at a longitudinal seam


76


by a heated sealing device


78


. Beverage is added into the columnar sleeve


74


below the sealing device


78


via a pipe


80


that enters the columnar sleeve


74


prior to the formation of the columnar sleeve


74


.




At intervals that establish individual cartons of beverage, a transverse seam


82


is formed across the columnar sleeve


74


and through the beverage by sealing jaws


96


. The lower portion of the columnar sleeve


74


is roughly formed into an individual carton


84


by forming dies


86


and is then cut from the columnar sleeve


74


by cutting jaws


98


. The top and bottom flaps of the cut off cartons


88


are folded, the top flaps


90


are secured to the sides of the carton and the bottom flaps


92


are secured to the bottom of the carton to form the finished carton


31


as described above. It will be appreciated by those skilled in the art that only the basic steps of the form, fill and seal process are shown. For example other pairs of forming dies are required to transform the cut off carton


88


, as cut from the columnar sleeve


74


, from its cushion shape to the parallelepipedic carton


31


shape.




Referring to

FIGS. 15-19

, the above described process has been adapted to include the application of assembly


56


. Tooling (not shown) bears on the flange


46


of the holder


34


during the application of the assembly


56


to the lining


62


of the boxboard material


48


at the perimeter of the oblong hole


60


. As it is required that the sheet material


48


be wrapped from a flat sheet into the columnar sleeve


74


it will also be required that the assemblies


56


attached to the material


48


be temporarily moved to keep the extended straws


32


from interfering with the forming and sealing of the columnar sleeve


74


.




A guide


94


which is generally an elongate “L”-shaped guide and which is generally “U”-shaped in cross section is illustrated in

FIGS. 16 and 17

to temporarily move the straws


32


and to keep each clear of the wrapping and sealing process. The guide


94


will extend into the columnar sleeve


74


along with the beverage pipe


80


. The longitudinal seam


76


and heated sealing device


78


are shown in

FIG. 16

as well.




At a point below the formation of the longitudinal seam


76


the guide


94


is terminated and the straw


32


is allowed to lean against the opposite wall of the columnar sleeve


74


as illustrated in FIG.


15


. As seen in

FIGS. 15

,


16


and


17


, a holder


34


of this thin wall design would allow both some degree of strain relief to the moved straw


32


during formation of the columnar sleeve


74


and some freedom for the consumer to redirect the drinking straw


32


to get the last drop of beverage from the carton


30


or


68


.




As the columnar sleeve


74


is progressively advanced downwardly, beverage is supplied to the inside of the columnar sleeve


74


via beverage pipe


80


, forming dies


86


roughly form the individual cartons


84


, sealing jaws


96


form a transverse seal


82


across the columnar sleeve


74


and through the beverage and cutting jaws


98


cut the sealed individual carton


84


from the columnar sleeve


74


.




The top flaps


90


and bottom flaps


92


resulting from the forming and cutting steps are folded and attached to the sides and bottom respectively of the beverage carton, to produce the finished beverage carton


30


, also shown in FIG.


1


.




The finished beverage carton


30


is illustrated in

FIGS. 1

,


8


and


9


, with a partially removed side panel to better illustrate the orientation of the straw


32


inside the carton


30


.




It will be appreciated by those skilled in the art that the elements of the assembly


56


shown here as being attached in one step could be attached separately. That is the holder


34


could be attached to sheet material


48


and then the straw


32


inserted therein and then sealing strip


52


attached to the holder


34


or the sheet material


48


and holder


34


.




It will be appreciated that the above description related to the invention by way of example only. Many variations on the invention will be obvious to those skilled in the art and such obvious variations are within the scope of the invention as described herein whether or not expressly described.



Claims
  • 1. A liquid container of plastic coated boxboard, or laminated cardboard comprising:a container body having an interior volume and a plurality of exterior walls; a holder having an aperture and a trough formed therein, the trough having a vent hole formed therein, the trough being contiguous with the aperture, the trough being dimensioned to receive a straw in a stowed position, the trough having an upper edge and the holder having peripheral flange extending outwardly from the upper edge of the trough and the flange being mounted with a liquid and gas tight seal in an exterior wall of the container; the straw extending through the aperture in the holder having the stowed position and an in use position and the straw having a snug fit in the aperture; a sealing means for sealing the straw in the stowed position with a liquid and gas tight seal thereby sealing the liquid inside the container.
  • 2. A liquid container as claimed in claim 1 wherein the straw is resiliently deformable.
  • 3. A liquid container as claimed in claim 1 wherein the container body is a parallelepipedic shape.
  • 4. A liquid container as claimed in claim 1 wherein the holder has a sleeve extending orthogonally from the trough with the distal end thereof encircling the aperture.
  • 5. A liquid container as claimed in claim 1 wherein the sealing means is a sealing strip attached to the flange in a liquid and gas tight seal.
  • 6. A liquid container as claimed in claim 5 wherein the sealing strip has a tab portion that extends outwardly from the container.
  • 7. A liquid container as claimed in claim 1 wherein the sealing means is a sealing strip attached to the flange and the container in a liquid and gas tight seal.
  • 8. A liquid container as claimed in claim 1 wherein the sealing means is a sealing strip attached to the container in a liquid and gas tight seal.
  • 9. A liquid container as claimed in claim 5 wherein the sealing strip has written material thereon.
  • 10. A liquid container as claimed in claim 1 wherein the container body is a gable top shaped box.
  • 11. A liquid container as claimed in claim 1 wherein the container body is a gable top shaped box.
  • 12. A liquid container as claimed in claim 1 wherein the container is a parallelepipedic type carton.
  • 13. A liquid container as claimed in claim 1 wherein the container is a gable type carton and the flange is adapted to be attached to the inside thereof.
  • 14. A liquid container as claimed in claim 1 wherein the container is a gable type carton and the flange is adapted to be attached to the outside thereof.
  • 15. A holder for use with an individual beverage container and a straw comprising:a trough having an aperture formed therein dimensioned to receive the straw snugly therein and a vent hole formed therein; a flange extending laterally from the trough to be attached to the container; a sleeve extending orthogonally from the trough with the distal end thereof encircling the aperture; and a straw integrally attached to the holder.
  • 16. A holder as claimed in claim 15 wherein the holder has a thin uniform wall thickness.
  • 17. A holder as claimed in claim 15 further including a straw extending through the aperture in the trough.
  • 18. A holder as claimed in claim 15 further including a straw extending through the aperture in the trough the straw having a stowed position and an in use position, a sealing strip attached to the holder in an liquid and gas tight seal and covering the straw in the stowed position.
  • 19. A liquid container of plastic coated boxboard, or laminated cardboard comprising:a container body having an interior volume and a plurality of exterior walls; a resiliently deformable holder having an aperture and a trough formed therein, the trough being contiguous with the aperture, the trough being dimensioned to receive a straw in a stowed position, the trough having an upper edge and the holder having a peripheral flange extending outwardly from the upper edge of the trough and the flange being mounted with a liquid and gas tight seal in an exterior wall of the container; the resiliently deformable straw extending through the aperture in the holder having the stowed position and an in use position and the straw having a snug fit in the aperture; a sealing means for sealing the straw in the stowed position with a liquid and gas tight seal thereby sealing the liquid inside the container.
  • 20. A liquid container of plastic coated boxboard, or laminated cardboard comprising:a container body having an interior volume and a plurality of exterior walls; a holder having an aperture and a trough formed therein, the trough being contiguous with the aperture, the trough being dimensioned to receive a straw in a stowed position, the trough having an upper edge and the holder having a peripheral flange extending outwardly from the upper edge of the trough and the flange being mounted with a liquid and gas tight seal in an exterior wall of the container; the straw extending through the aperture in the holder having the stowed position and an in use position and the straw having a snug fit in the aperture; a resealable cap releasably attached to the holder for sealing the straw in the stowed position with a liquid and gas tight seal thereby sealing the liquid inside the container.
  • 21. A liquid container of plastic coated boxboard, or laminated cardboard comprising:a container body having an interior volume and a plurality of exterior walls; a holder having an aperture and a trough formed therein, the trough being contiguous with the aperture, the trough being dimensioned to receive a straw in a stowed position, the trough having an upper edge and the holder having a peripheral flange extending outwardly from the upper edge of the trough and the flange being mounted with a liquid and gas tight seal in an exterior wall of the container; the straw extending through the aperture in the holder having the stowed position and an in use position and the straw having a snug fit in the aperture; a a resealable flap attached to the holder with a living hinge for sealing the straw in the stowed position with a liquid and gas tight seal thereby sealing the liquid inside the container.
  • 22. A holder for use with an individual beverage container and a straw comprising:a trough having an aperture formed therein dimensioned to receive the straw snugly therein; a flange extending laterally from the trough to be attached to the container; a sleeve extending orthogonally from the trough with the distal end thereof encircling the aperture; and a resealable flap attached to the holder with a living hinge.
  • 23. A holder for use with an individual beverage container and a straw comprising:a trough having an aperture formed therein dimensioned to receive the straw snugly therein; a flange extending laterally from the trough to be attached to the container; a sleeve extending orthogonally from the trough with the distal end thereof encircling the aperture; and a resealable cap releasably attached to the holder.
CROSS REFERENCE TO RELATED PATENT APPLICATION

This patent application relates to Patent Cooperation Treaty application PCT/CA99/00400 which designates the United States and was filed May 13, 1999 and entitled STOPPERS FOR INDIVIDUAL BEVERAGE CONTAINERS.

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