CA1036520A - Cover strip for the pouring opening in a packing container - Google Patents
Cover strip for the pouring opening in a packing containerInfo
- Publication number
- CA1036520A CA1036520A CA230,302A CA230302A CA1036520A CA 1036520 A CA1036520 A CA 1036520A CA 230302 A CA230302 A CA 230302A CA 1036520 A CA1036520 A CA 1036520A
- Authority
- CA
- Canada
- Prior art keywords
- packing container
- cover strip
- pouring opening
- edge
- container
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Landscapes
- Cartons (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
The present invention provides in a packing container having a pouring opening, a core strip for said opening, said strip at its front end being doubled along a transverse weakening line to form a bottom portion which is attached to a side of the container and is adapted to remain on the container side after the tearing off of the cover strip.
The present invention provides in a packing container having a pouring opening, a core strip for said opening, said strip at its front end being doubled along a transverse weakening line to form a bottom portion which is attached to a side of the container and is adapted to remain on the container side after the tearing off of the cover strip.
Description
: :~
::;
3~S;Z~
The present invention rela~es to a cover strip for the pouring opening in a packing container.
In the type of disposable packages, e.g. for beverages, which are manufactured from plastic-coated paper or the like a large number of different types of openings exist for emptying the contents. Thus, for example, pouring openings are known which are produced by the prizing open o a portion o the joint of the packing container, the cutting off of a corner, the folding out and tearing off of lugs etc. Quite often types of pouring openings are also used which consist o a hole punched out in the top side o the packing container, which is covered with a tear-o cover strip. This t~pe of pouriny opening o~ers a number of advantages, such as that it is generall~ possible to place the opening anywhere, independently of lugs, joints and the like. The container is moreover very simple to open by pulling away the cover strip covering and closing the pouring opening, and the pouring opening normally gives a concentrated and readily directed jet.
Certain pouring difficulties arise, however, when the pouring opening is placed in the ~icinity of a folded edge on the packing container, which edge is not folded sharply but rounded so that the jet will have the tendency to "follow"
around the edge. It is a further dlsadvantage that the jet runs for a certain distance in contact with the outside of the packing container, which is not desirable if the filling material constitutes e.g. a beverage, since the outside of the package is wholly unprotected and can thus become contaminated during the transport of the packing container to the consumer.
i The present invention provides an easily openable pouring opening, which after opening has good pouring characteris-tics, even when the opening is located near a rounded edge on the packing container and gives a clean pouring surace which is ', ~ ,~ .' 1. ., ~, .
:
1~3~S20 not exposed before the pouring.
Acccrding to the present invention there is provided in a packing container having a pouring opening in the top thereof, the improvement comprising a cover strip for the pouring opening said cover strip comprising an inner portion -releasably secured over the pouring opening, an intermediate portion extending outwardly from the pouring opening and an `
outer portion folded under said intermediate portion and extend-ing substantially back to the pouring opening, at least part of the outer portion being secured to the top of the packing ; container, said intermediate portion being provided with a transverse tearing indication, whereby when the inner portion of the cover ~trip is released rom the top of the packing container to uncover the pouring Opening for aacess to the contents thereof, at least said inner portion is separated at the tearing indication from the remainder of the cover strip including the outer folded portion which remains secured to the top of 3 the packing container and provides a sanitary path for the con- ;
; tents when poured from the packing container.
In a particular embodiment of the present invention ;~
~ the tearing indication is situated at, or some distance beyond ;~ an edge line llmiting the container side provided with the pour-ing opening. Since the bottom part of the strip which remains 3 -~
i~ on the package extends somewhat beyond one of the edges which limit the container side provided with a pouring opening, it will serve as a pouring edge and allow the emptyin~ of the con-tainer in a concentrated jet over the said edge without spilling or dripping.
So that the remaining part oE the strip should orm an efective pouring edge, the tearing indication must be situ-ated a few millimetres outside the edge of the packing container, ;;
:1. . ..
' ' ` '"' "
.....
:1 '. `, :.
3652 01 ~
and this has proved to involve a certain risk, since the pro-jecting part of the strip may get caught in foreign objects and be torn off. .
The portion of the strip forming the pouring edge is desirably folded out to the position outside~the package edge ~-only in connection with the opening of the container. This is .
achieved in another embodiment of the present invention in that the tearing indication is a hinge link which is situated at, or .
a little distance inside the edge line, a second tearing indica-tion being arranged substantially transversely across a top part of the strip as a tearing line, a portion of the cover strip situated '' . ''' ;': , ~''.
~ 20 ',';~,~
: , ' '~',:".', .;
~,, , :
Il "`
~. .
~ -`2a -''; .
~ , SZO
between the weakening lines being adapted, on tearing off of the cover strip, to be folded out over the edge line and remain -...: :....
on the package container in this position so as to serve as a ~
~, . . ~ .
pouring edge.
In a particular embodiment of the present invention the portion of the strip remaining on the side o the packing container after the opening of the packing container extends between the pouring opening and the pouring edge situated beyond the container side.
In a further embodiment of the present invention the area of the strip covering the pouring opening is connected to a plastic layer covering the pouring opening which is connected , to the inside o the package container.
In another embodiment o~ the present inven~ion the area of the strip covering the pouring opening extends down into the pouring opening and is adapted for re-closure of the opening.
In yet another embodiment of the present invention a rear end of the strip is provided with a grip section extending away from the container side. ;
The present invention will be further illustrated by way of the accompanying drawings in which Fig. 1 is a schematic perspective view of the upper part of a packing container, including a cover strip in accordance with one embodiment of the present invention, , Fig. 2 is a section along line II-II in fig. 1 and shows `
on a larger scale the pouring opening with the cover strip ' ;
according to fig. 1 applied to it, Fig. 3 is a schematic pe~spective view of the upper part ;, `
of-a packing container with a cover strip accordin~ to a second embodiment of the invention, and Fig. 4 illustrates the upper part of the packing contain-er according to fig. 3 after the removal of the cover strip.
.
:
~36~
The packing container 1 shown in the drawings is of -parallelepipedic form and has an upper, preferably plane surface
::;
3~S;Z~
The present invention rela~es to a cover strip for the pouring opening in a packing container.
In the type of disposable packages, e.g. for beverages, which are manufactured from plastic-coated paper or the like a large number of different types of openings exist for emptying the contents. Thus, for example, pouring openings are known which are produced by the prizing open o a portion o the joint of the packing container, the cutting off of a corner, the folding out and tearing off of lugs etc. Quite often types of pouring openings are also used which consist o a hole punched out in the top side o the packing container, which is covered with a tear-o cover strip. This t~pe of pouriny opening o~ers a number of advantages, such as that it is generall~ possible to place the opening anywhere, independently of lugs, joints and the like. The container is moreover very simple to open by pulling away the cover strip covering and closing the pouring opening, and the pouring opening normally gives a concentrated and readily directed jet.
Certain pouring difficulties arise, however, when the pouring opening is placed in the ~icinity of a folded edge on the packing container, which edge is not folded sharply but rounded so that the jet will have the tendency to "follow"
around the edge. It is a further dlsadvantage that the jet runs for a certain distance in contact with the outside of the packing container, which is not desirable if the filling material constitutes e.g. a beverage, since the outside of the package is wholly unprotected and can thus become contaminated during the transport of the packing container to the consumer.
i The present invention provides an easily openable pouring opening, which after opening has good pouring characteris-tics, even when the opening is located near a rounded edge on the packing container and gives a clean pouring surace which is ', ~ ,~ .' 1. ., ~, .
:
1~3~S20 not exposed before the pouring.
Acccrding to the present invention there is provided in a packing container having a pouring opening in the top thereof, the improvement comprising a cover strip for the pouring opening said cover strip comprising an inner portion -releasably secured over the pouring opening, an intermediate portion extending outwardly from the pouring opening and an `
outer portion folded under said intermediate portion and extend-ing substantially back to the pouring opening, at least part of the outer portion being secured to the top of the packing ; container, said intermediate portion being provided with a transverse tearing indication, whereby when the inner portion of the cover ~trip is released rom the top of the packing container to uncover the pouring Opening for aacess to the contents thereof, at least said inner portion is separated at the tearing indication from the remainder of the cover strip including the outer folded portion which remains secured to the top of 3 the packing container and provides a sanitary path for the con- ;
; tents when poured from the packing container.
In a particular embodiment of the present invention ;~
~ the tearing indication is situated at, or some distance beyond ;~ an edge line llmiting the container side provided with the pour-ing opening. Since the bottom part of the strip which remains 3 -~
i~ on the package extends somewhat beyond one of the edges which limit the container side provided with a pouring opening, it will serve as a pouring edge and allow the emptyin~ of the con-tainer in a concentrated jet over the said edge without spilling or dripping.
So that the remaining part oE the strip should orm an efective pouring edge, the tearing indication must be situ-ated a few millimetres outside the edge of the packing container, ;;
:1. . ..
' ' ` '"' "
.....
:1 '. `, :.
3652 01 ~
and this has proved to involve a certain risk, since the pro-jecting part of the strip may get caught in foreign objects and be torn off. .
The portion of the strip forming the pouring edge is desirably folded out to the position outside~the package edge ~-only in connection with the opening of the container. This is .
achieved in another embodiment of the present invention in that the tearing indication is a hinge link which is situated at, or .
a little distance inside the edge line, a second tearing indica-tion being arranged substantially transversely across a top part of the strip as a tearing line, a portion of the cover strip situated '' . ''' ;': , ~''.
~ 20 ',';~,~
: , ' '~',:".', .;
~,, , :
Il "`
~. .
~ -`2a -''; .
~ , SZO
between the weakening lines being adapted, on tearing off of the cover strip, to be folded out over the edge line and remain -...: :....
on the package container in this position so as to serve as a ~
~, . . ~ .
pouring edge.
In a particular embodiment of the present invention the portion of the strip remaining on the side o the packing container after the opening of the packing container extends between the pouring opening and the pouring edge situated beyond the container side.
In a further embodiment of the present invention the area of the strip covering the pouring opening is connected to a plastic layer covering the pouring opening which is connected , to the inside o the package container.
In another embodiment o~ the present inven~ion the area of the strip covering the pouring opening extends down into the pouring opening and is adapted for re-closure of the opening.
In yet another embodiment of the present invention a rear end of the strip is provided with a grip section extending away from the container side. ;
The present invention will be further illustrated by way of the accompanying drawings in which Fig. 1 is a schematic perspective view of the upper part of a packing container, including a cover strip in accordance with one embodiment of the present invention, , Fig. 2 is a section along line II-II in fig. 1 and shows `
on a larger scale the pouring opening with the cover strip ' ;
according to fig. 1 applied to it, Fig. 3 is a schematic pe~spective view of the upper part ;, `
of-a packing container with a cover strip accordin~ to a second embodiment of the invention, and Fig. 4 illustrates the upper part of the packing contain-er according to fig. 3 after the removal of the cover strip.
.
:
~36~
The packing container 1 shown in the drawings is of -parallelepipedic form and has an upper, preferably plane surface
2, in which a pouring opening closed by means of a cover strip
3 is disposed near an edge 4 between the upper surface 2 and one of the side surfaces 5 o the container.
In Figs 1, 2 and 3 the cover strip 3 is shown in applied position covering the pouring opening 6 of tha packing container 1. The cover strip 3 comprises a centrally situated recessed part 70f ashape corresponding to the shape of the pouring open-ing 6. The recessed part 7 is connected to a plastic layer ora plastic strip 8 ~fig. 2) which is attached to the inside o~ the packing material. The plastic strip 8 is applied aEter the pour-ing opening 6 has been made, and it thus covers and aloses the same.
In the embodiment of the cover strip in accordance with the invention shown in Figs. 1 and 2 the front part of the cover strip 3, situated at the front edge 4 of the package 1 is provid-ed directly outside the edge with a transverse fold,ing line 9 and ~ ' the portion 10 of the strip separated by the folding line 9 '~ ~20 is folded back in underneath the main portion of the cover strip .j !~ 3 The portion 10 extends as far as the end of the pouring opening 6 located nearest to the package edge 4, and is attached , over its whole length, apart ~rom the part situated beyond the if package edge 4, to the top part of the package 1. The folding `lf line 9 represents a breaking indication or per~oration.
,~ The cover strip 3 is thus connected to the package 1 .. ... . .
' only at two points, namely indirectly via the connection between the recessed area 7 and the plastic strip 8 and directly via j the foIded-in part 10 o the strip. On its rear part facing the central area of the upper surface 2 of the package 2, the coVer strip 3 is provided with a folded up grip lug 11.
When a packing container 1 which is provided with a .``,1 ~ 4 ~
~L~36~iZC~
cover strip 3 as shown in ~ig. 1 and 2 is to be opened so as to ;. .
allow the pouring out of the contents of the package, the lug .. .
11 is grlpped and pulled in an upward direction. In so doing, :. ... :
the plastic strip 8 will rupture along the opening edge, and the portion of the strip 8 which is connected to the recessed area .~
7 of the cover strip 3 will ollow the cover strip.3 up and out .
of the pouring opening 6, so that the latter is reed. On contin~
ued tearing off of the cover strip 3 the same will rupture at the folding line 9 provided with break indication, which means that the olded-in end attached to the top side 2 of the package :
1 or strip part 10 will remain on the package 1. Through this, .
two advantages.are obtained, namely in the first place, that a ~
marked edge can be created alon~ the foldiny line 9, which can ~;.
facilitate the pouring out of the contents oE the container 1 and ~ .
prevent the jet from following the package surface around the edge 4, and secondly that the area on the top side of the package ~ :
1 with which the jet comes into contact is constituted of the ' remaining part 10, which before the opening of the package is .
protected by the main part of the cover strip 3 and cannot there- .
fore be contaminated during the~transport of the package 1. .;.
The packing container 1 shown in figures 3 and 4, apart .-from the detail design of the cover strip 3, is identical with :
;~ the packing container shown in FigO 1 and 2, and parts correspond-ing to one another were given the same reference numerals in the .
dlfferent fi:gures. ..
~¦ This second embodiment (Fig. 3 and 4) o:E the cover strip ;:
; 3, according to the invention lacks the folding line 9 and is provided instead on its front part situated adjacent the edge 4 of the package 1 with a transverse weakening line 1~ situated . 30 directly inside the edge 4 along which weakening line 14 the .' . strip 3 is folded double so that a portion 10 of the strip .
. separated by the weakening line 14 is situated underneath the :.
: 5 _ ~6~365;2~3 ~
main portion of the cover strip 3. In this embodiment the portion 10 also extends as far as the end of the pouring opening 6 situated closest to the package edge 4 and is attached over the whole of its length to the upper surface 2 o~ the package 1. ;
Between the weakening line 14 and the recessed area 7 of the cover strip 3 there is a second weakening line 12, which also extends transversely across the cover strip 3, so that a small area or panel 13 is formed between the two weakening lines 14 and 12. The weakening lines 12 and 14 are a series o substantially complete perforations o~ khe material. The second ~eakening line 12 is a tearing indication, Whilst the ~irst weakening line 14 .
i5 a hinge link.
When the packing conta:Lner 1 ~Fig, 3 and 4) is to be opened so as to allow the pouring out of the contents, the grip lug 11 is gripped as in Figs.l and 2 and pulled in upward-forward ~ direction. In so doing the plastic layer situated inside the l packing material will come undone so that the recessed area 7 ¦ of the cover strip 3 follows the cover strip up and out of the , pouring openiny and sets the same free. During the continuing upward-for~ard pulling of the cover strip 3 the transverse weakening line 14 serves as a hinge link, which means that the cover strip 3 including the area 13 is folded forwards and out ~ ;
,J' over the edge 4 of the container. When the force is sufficiently strong, the cover strip 3 and the portion lO remaining on the package 1 separate from one another at the weakening line 12 r ~l which means that the transverse part 13 will remain on the package :
in the folded-out position, as shown in Fig. 4. Through this '~ a marked pouring edge will be created outside the edge 4 o~ the package 1, wh~ch facilitates the emptying out of the contents of the container, since the jet now does not tend to follow the outside o the package around the edge 4. Moreover, hygienic advantages are obtained from the fact that the area on the top ,~,...
.~ .
: _ _ ~3~;5ZO `-~ :
`.....
side of the pac~age 1 with which the jet comes into contact iS
constituted of the remaining cover strip parts 10 and 13, since _. :
these areas during transport and handling of the package have .~
been protected by the parts of the cover strip 3 lying on top ` .
of them. .
The two transVerse weakening lines 14 and 12 of the .. .
cover strip.3 must have an appropriate mutual strength ratio, if the cover strip is to ~unction in the abovementioned manner.
Thus it is necessary of course to give the transverse weakening ;`.~ .
line 14, which is to serve as a hinge link, such strength that the link does not break. At the same time, however, the link .. ::
must be designed in such a manner, that the strip area 13 ater `
the opening o the package remains in the folded-out position ~Fig. 4). In practice the two weakening lines have not caused any major problem in the manu~acture o the cover strip, which ...
has preerably been made o thin plastic material. ~ .
The function o the cover strip 3 and o the fold-out ` ;
pouring edge is associated more.o.ver, on the one hand with the ;.
distance between the hinge link 14 and the edge line 4 of the ~ ... ;
~: 20 container side 5 and, on the other hand with the distance between :
:~ the hinge link 14 and the tearing line 12. It is an advantage for the ront edge of the folded cover strip 3, that is the hinge :. ;
link 14, to be placed a few millimetres inside the edge 4 of .
the packing container. Since at the same time as the container 1 is opened the tearing line 12 serving as a pouring edge has to be a ew millimetres outside the edge. I'his means that the ..
distance between the weakening lines 14 and 12 depends directly ~ .
on the distance between the weakening line 14 and the container ;;
edge 4. I the distance between the weakening line or the hinge link 14 and the edge 4 of the packing container 1 is two milli- `.
metres it was found to be appropriate to make the distance : . :
between the hinge link 14 and the tearing line 12, 4-6 milli- ~ ;~
, . . .
; . ', . .
~ - - ``\
metres. Ho~ever, the dimension will have to be adapted of course in each case to the size of the package 1, the placing of the emptying opening and the bending radius of the actual container edge 4 The cover strip 3 is made of a flexible and strong plastic material. The part of the cover strip 3 which extends down into the pouring opening is provided at its lower edge , with a projecting portion so as to make possible a re-closure of ;`
the package through "press-fastener effect".
In the embodiment according to Fig. 1 and 2 it is not necessar~ for the double front end to be produced by the olding in of the strip end. It can also be created b~ a separate strip part being attached to the underside of the front end of the sover strip 3 before or in connection with the application o~
the cover strip 3 to the package 1. The adhesive power between on the one side the cover strip 3 and on the other side the strip part and the package 1 must be adapted so that the strip :
part does effectively stay behind on the package when the coVer strip is torn off.
The advantages of using the cover strip in accordance with the invention are specially evident in packages for e.g.
milk, since in such packages great demands are made on cleanli-ness as well as on the facility to pour out and dispense the milk without spilling and splashing.
.: :
~ 8
In Figs 1, 2 and 3 the cover strip 3 is shown in applied position covering the pouring opening 6 of tha packing container 1. The cover strip 3 comprises a centrally situated recessed part 70f ashape corresponding to the shape of the pouring open-ing 6. The recessed part 7 is connected to a plastic layer ora plastic strip 8 ~fig. 2) which is attached to the inside o~ the packing material. The plastic strip 8 is applied aEter the pour-ing opening 6 has been made, and it thus covers and aloses the same.
In the embodiment of the cover strip in accordance with the invention shown in Figs. 1 and 2 the front part of the cover strip 3, situated at the front edge 4 of the package 1 is provid-ed directly outside the edge with a transverse fold,ing line 9 and ~ ' the portion 10 of the strip separated by the folding line 9 '~ ~20 is folded back in underneath the main portion of the cover strip .j !~ 3 The portion 10 extends as far as the end of the pouring opening 6 located nearest to the package edge 4, and is attached , over its whole length, apart ~rom the part situated beyond the if package edge 4, to the top part of the package 1. The folding `lf line 9 represents a breaking indication or per~oration.
,~ The cover strip 3 is thus connected to the package 1 .. ... . .
' only at two points, namely indirectly via the connection between the recessed area 7 and the plastic strip 8 and directly via j the foIded-in part 10 o the strip. On its rear part facing the central area of the upper surface 2 of the package 2, the coVer strip 3 is provided with a folded up grip lug 11.
When a packing container 1 which is provided with a .``,1 ~ 4 ~
~L~36~iZC~
cover strip 3 as shown in ~ig. 1 and 2 is to be opened so as to ;. .
allow the pouring out of the contents of the package, the lug .. .
11 is grlpped and pulled in an upward direction. In so doing, :. ... :
the plastic strip 8 will rupture along the opening edge, and the portion of the strip 8 which is connected to the recessed area .~
7 of the cover strip 3 will ollow the cover strip.3 up and out .
of the pouring opening 6, so that the latter is reed. On contin~
ued tearing off of the cover strip 3 the same will rupture at the folding line 9 provided with break indication, which means that the olded-in end attached to the top side 2 of the package :
1 or strip part 10 will remain on the package 1. Through this, .
two advantages.are obtained, namely in the first place, that a ~
marked edge can be created alon~ the foldiny line 9, which can ~;.
facilitate the pouring out of the contents oE the container 1 and ~ .
prevent the jet from following the package surface around the edge 4, and secondly that the area on the top side of the package ~ :
1 with which the jet comes into contact is constituted of the ' remaining part 10, which before the opening of the package is .
protected by the main part of the cover strip 3 and cannot there- .
fore be contaminated during the~transport of the package 1. .;.
The packing container 1 shown in figures 3 and 4, apart .-from the detail design of the cover strip 3, is identical with :
;~ the packing container shown in FigO 1 and 2, and parts correspond-ing to one another were given the same reference numerals in the .
dlfferent fi:gures. ..
~¦ This second embodiment (Fig. 3 and 4) o:E the cover strip ;:
; 3, according to the invention lacks the folding line 9 and is provided instead on its front part situated adjacent the edge 4 of the package 1 with a transverse weakening line 1~ situated . 30 directly inside the edge 4 along which weakening line 14 the .' . strip 3 is folded double so that a portion 10 of the strip .
. separated by the weakening line 14 is situated underneath the :.
: 5 _ ~6~365;2~3 ~
main portion of the cover strip 3. In this embodiment the portion 10 also extends as far as the end of the pouring opening 6 situated closest to the package edge 4 and is attached over the whole of its length to the upper surface 2 o~ the package 1. ;
Between the weakening line 14 and the recessed area 7 of the cover strip 3 there is a second weakening line 12, which also extends transversely across the cover strip 3, so that a small area or panel 13 is formed between the two weakening lines 14 and 12. The weakening lines 12 and 14 are a series o substantially complete perforations o~ khe material. The second ~eakening line 12 is a tearing indication, Whilst the ~irst weakening line 14 .
i5 a hinge link.
When the packing conta:Lner 1 ~Fig, 3 and 4) is to be opened so as to allow the pouring out of the contents, the grip lug 11 is gripped as in Figs.l and 2 and pulled in upward-forward ~ direction. In so doing the plastic layer situated inside the l packing material will come undone so that the recessed area 7 ¦ of the cover strip 3 follows the cover strip up and out of the , pouring openiny and sets the same free. During the continuing upward-for~ard pulling of the cover strip 3 the transverse weakening line 14 serves as a hinge link, which means that the cover strip 3 including the area 13 is folded forwards and out ~ ;
,J' over the edge 4 of the container. When the force is sufficiently strong, the cover strip 3 and the portion lO remaining on the package 1 separate from one another at the weakening line 12 r ~l which means that the transverse part 13 will remain on the package :
in the folded-out position, as shown in Fig. 4. Through this '~ a marked pouring edge will be created outside the edge 4 o~ the package 1, wh~ch facilitates the emptying out of the contents of the container, since the jet now does not tend to follow the outside o the package around the edge 4. Moreover, hygienic advantages are obtained from the fact that the area on the top ,~,...
.~ .
: _ _ ~3~;5ZO `-~ :
`.....
side of the pac~age 1 with which the jet comes into contact iS
constituted of the remaining cover strip parts 10 and 13, since _. :
these areas during transport and handling of the package have .~
been protected by the parts of the cover strip 3 lying on top ` .
of them. .
The two transVerse weakening lines 14 and 12 of the .. .
cover strip.3 must have an appropriate mutual strength ratio, if the cover strip is to ~unction in the abovementioned manner.
Thus it is necessary of course to give the transverse weakening ;`.~ .
line 14, which is to serve as a hinge link, such strength that the link does not break. At the same time, however, the link .. ::
must be designed in such a manner, that the strip area 13 ater `
the opening o the package remains in the folded-out position ~Fig. 4). In practice the two weakening lines have not caused any major problem in the manu~acture o the cover strip, which ...
has preerably been made o thin plastic material. ~ .
The function o the cover strip 3 and o the fold-out ` ;
pouring edge is associated more.o.ver, on the one hand with the ;.
distance between the hinge link 14 and the edge line 4 of the ~ ... ;
~: 20 container side 5 and, on the other hand with the distance between :
:~ the hinge link 14 and the tearing line 12. It is an advantage for the ront edge of the folded cover strip 3, that is the hinge :. ;
link 14, to be placed a few millimetres inside the edge 4 of .
the packing container. Since at the same time as the container 1 is opened the tearing line 12 serving as a pouring edge has to be a ew millimetres outside the edge. I'his means that the ..
distance between the weakening lines 14 and 12 depends directly ~ .
on the distance between the weakening line 14 and the container ;;
edge 4. I the distance between the weakening line or the hinge link 14 and the edge 4 of the packing container 1 is two milli- `.
metres it was found to be appropriate to make the distance : . :
between the hinge link 14 and the tearing line 12, 4-6 milli- ~ ;~
, . . .
; . ', . .
~ - - ``\
metres. Ho~ever, the dimension will have to be adapted of course in each case to the size of the package 1, the placing of the emptying opening and the bending radius of the actual container edge 4 The cover strip 3 is made of a flexible and strong plastic material. The part of the cover strip 3 which extends down into the pouring opening is provided at its lower edge , with a projecting portion so as to make possible a re-closure of ;`
the package through "press-fastener effect".
In the embodiment according to Fig. 1 and 2 it is not necessar~ for the double front end to be produced by the olding in of the strip end. It can also be created b~ a separate strip part being attached to the underside of the front end of the sover strip 3 before or in connection with the application o~
the cover strip 3 to the package 1. The adhesive power between on the one side the cover strip 3 and on the other side the strip part and the package 1 must be adapted so that the strip :
part does effectively stay behind on the package when the coVer strip is torn off.
The advantages of using the cover strip in accordance with the invention are specially evident in packages for e.g.
milk, since in such packages great demands are made on cleanli-ness as well as on the facility to pour out and dispense the milk without spilling and splashing.
.: :
~ 8
Claims (7)
1. In a packing container having a pouring opening in the top thereof, the improvement comprising a cover strip for the pouring opening, said cover strip comprising an inner portion releasably secured over the pouring opening, an intermediate portion extending outwardly from the pouring opening and an outer portion folded under said intermediate portion and extend-ing substantially back to the pouring opening, at least part of the outer portion being secured to the top of the packing container, said intermediate portion being provided with a transverse tearing indication, whereby when the inner portion of the cover strip is released from the top of the packing container to uncover the pouring opening for access to the contents thereof, at least said inner portion is separated at the tearing indication from the remainder of the cover strip including the outer folded portion which remains secured to the top of the packing container and provides a sanitary path for the contents when poured from the packing container.
2. A packing container as cliamed in claim 1 wherein the intermediate portion of the cover strip extends outwardly beyond the outer edge of the top of the packing container and wherein the transverse tearing indication is located at the outer end of the intermediate portion of the cover strip.
3. A packing container as claimed in claim 1 wherein the intermediate portion of the cover strip extends substantially to the edge of the top of the packing container and wherein the transverse tearing indication of the intermediate portion is located at the inner end thereof and adjacent the pouring opening whereby when the inner portion is removed from the pouring open-ing, said intermediate portion will be folded outwardly beyond the edge of the container as a continuation of said outer portion to form the path for the contents of the packing container, and said inner portion will be separated from said intermediate portion at the tearing indication.
4. A packing container as claimed in claim 1 in which the packing container is provided with an inner lining of a plastic material inside the top of the container, the improve-ment wherein said inner portion of the cover strip is depressed into the pouring opening and is secured to the inner lining so that the inner lining will be ruptured when the inner portion of the cover strip is removed from the pouring opening.
5. A packing container as claimed in claim 4 wherein the depressed inner portion of the cover strip is releasably engageable with the edge of the pouring opening to permit said inner portion to be reinserted for a substantial reclosure of the packing container.
6. A packing container as claimed in claim 1 wherein the inner free end of the inner portion of the cover strip is provided with a grip portion to facilitate removal of said cover strip from the pouring opening.
7. A packing container as claimed in claim 1 the improvement wherein the intermediate portion of the cover strip extends to about 1-4 mm. inside the edge of the top of the packing container while the distance between the tearing indication and the outer end of the intermediate portion is from about 2-8 mm.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE7408566A SE394644B (en) | 1974-06-28 | 1974-06-28 | STEEL BELT FOR FULL OPENING IN A PACKAGING CONTAINER |
| SE7504801A SE389958B (en) | 1975-04-25 | 1975-04-25 | CYLINDER-SHAPED ELEGANT OVEN FOR HANDLING MATERIAL AT HIGH TEMPERATURE IN A GAS AUTHOSPER UNDER HIGH PRESSURE |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1036520A true CA1036520A (en) | 1978-08-15 |
Family
ID=26656502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA230,302A Expired CA1036520A (en) | 1974-06-28 | 1975-06-27 | Cover strip for the pouring opening in a packing container |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1036520A (en) |
-
1975
- 1975-06-27 CA CA230,302A patent/CA1036520A/en not_active Expired
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3977591A (en) | Cover strip for the pouring opening in a packing container | |
| US4798296A (en) | Packing container provided with a reclosable opening arrangement | |
| US4197949A (en) | Opening of containers | |
| US4986465A (en) | Opening arrangement on a packing container | |
| US4101051A (en) | Packaging means | |
| US5167455A (en) | Container | |
| US4815655A (en) | Opening arrangement for packing containers | |
| US5678755A (en) | Paperboard carton having a pour spout and blank for forming the same | |
| JPS6241937B2 (en) | ||
| CA1207282A (en) | Sheet material packaging used for liquids | |
| CA2028339A1 (en) | Apparatus for the separable attachment of two synthetic plastics parts and the use of the apparatus for a package to contain flowable contents | |
| US4913294A (en) | Opening arrangement for packing containers | |
| JPS6034324A (en) | Vessel and blank for preparing vessel | |
| AU596730B2 (en) | Opening arrangement on packing containers | |
| JPH08503676A (en) | Paper box with resealable corner outflow opening | |
| US5067614A (en) | Packing container provided with opening arrangement | |
| CA2045807C (en) | Packaging container and blank for manufacture of the same | |
| CA1036520A (en) | Cover strip for the pouring opening in a packing container | |
| EP0499086B1 (en) | Packaging container provided with an indication for opening | |
| GB1567592A (en) | Tear-open carton | |
| CA1189462A (en) | Packing container | |
| DE8328683U1 (en) | Flexible packaging for bulk goods | |
| FI76753C (en) | BEHAOLLARE SAMT AEMNE FOER DESS TILLVERKNING. | |
| JPH0221414Y2 (en) |