Note: Descriptions are shown in the official language in which they were submitted.
12~9~1
BA~KGROUND 0~ ~HE ]NVEN~]ON
~his invention relates generally to containers such as
tubes, pouches and packets for holding and dispensing
various types of flowable substances or materia1s such as
pastes, liquids or powders and more particularly to
containers made from stiff deformable flat unitary blanks
which when folded on themselves form a self-sustaining
container with a cavity therein so that initally it can be
charged with the filler substance or material and then
sealed it is necessary to dispense the same from the
container.
Compressible or squeezeable containers are well known and
more commonly are made of, metal. These containers are
expensive and require various surface preparations to make
the inner surface inert to the filler substances or
materials charged into such container. Additionally, this
type of container or tube often requires a closure
assembly generally at one end which adds to the cost of
the materials and therefore the cost of manufacture of
such tubes.
Plastic tubes for holding and dispensing flowable
substances or filler materials are also well known and are
generally similar in construction to these metal
t containers and tubes.
Squeezeable and disposable containers for holding flowable
substances or filler materials for one time use are also
well known in the art. Usually they consist of a sealed
plastic foil material which takes on a pillow like,
bulging, shape when filled with the flowable substance or
30 material to be dispensed. These disposable containers
are generally torn open or cut on an edge to form the f
discharge opening. If the total amount of the filler
material is not used, the rest of the filler material
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lZ~961
cannot be stored as it will either run out, dry up or
evaporate since the container itself cannot retain the
goods due to its softness and lack of a closure means.
Therefore the user of such disposable containers must
5 either use all of the flowable substance or filler
materi al or waste the remainder in the container.
Prior art containers or tubes as above described are
disclosed in U.S. Patents 2,432,462; 2,947,653; 3,338,475
and in British Patent No. 548,474.
1O The present invention provides an inexpensive squeezable
and disposable container with a self-activating closure
means. The container does not have to be completely
emptied after opening the same because the structure of
the container acts to retain the balance of flowable
15 substance or material therein after it is opened without
the need of a cap or the like type of closure device.
The present container overcomes the problems of the prior
art by having on at least one of its sealed edges a
sealable throughput or outlet passage which communicates
20 at its inner end with the space for the flowable substance
or materi al to be dispensed from the container. The end
of the throughput or outlet passage remote from the inner
end lies in a dispensing means or tongue a segment of
which can be torn or cut off to form an opening when it is
25 desired to dispense material from the container. By
reason of the material and the construction of the
containers in accordance with the present invention, the
walls of the tongue through which the output passage
extends are normally disposed in a flattened state and
30 resist separation from each other due to the self-acting
compressive forces inherent in the stiff deformable
material from which the container is made. The outlet
passage in the dispensing means or tongue therefore
remains closed even after the tongue is torn or cut off to
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lZ~)961
form an opening for the throughput or outlet passage and
the container i5 substantially self-sealing after a
portion of the flowable substance or material is
discharged from the container.
Further the squeezable container as above described can be
hermetically sealed, shipped and stored until the user
tears or cuts off the dispensing means or tongue to form
an opening for dispensing the flowable substance or
material therefrom. Due to the self closing or
; 10 self-sealing characteristics of the material from which
the container is made the flowable substances or materials
stored in the container are substantially protected
against accidental or unintentional discharge from the
container.
The bottom of the container is shaped and located between
the side sections so that it provides a generally stable
shape for the container such that the flowable substance
or material in the container does not readily escape
therefrom even after the container is opened. This
eliminates the needfor a sc~ew cap or similar structure as
has heretofore been used in the known prior art devices of
this type.
SUMMARY OF THE IN~ENTlON
j
Thus, the present invention covers an improved squeezeable
and disposable container for dispersing flowable materials
therefrom having a formed elongated tubular body defining
a sized storage chamber for the flowable material, said
elongated tubular body made from a unitary blank of stiff
deformable carton material having peripheral edges and
formed by folding the unitary blank onto itself to permit
the peripheral edges to be sealed, said elongated tubular
body having at least one shaped transverse wall and side
walls held in spaced relation by said shaped transverse
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walls, said spacerJ sidu walls having one respective end
thereof connected Dn Opposite sides of the transverse wall
and operative thelewith to define the sized storage
chamber for the f7Owable material, a dispensing means
5 defining a dispen~ing passage disposed in and continuous
with at least nne ~Jortion of said sealed peripheral edges,
severable means on the dispensing means to provide a
discharge out1et ~or the dispensing passage, and said
dispensing means i5 in communication with the sized
10 storage chamber t~ permit the flowable material to be
discharged through the dispensing passage and discharge
outlet from the said tubular member under pressure forces
and adapted to self-seal the discharge outlet on release
J of the pressure forces.
Additionally, the !.queezeable and disposable container as
above described wh~rein the dispensing passage in the
dispensing means hDs a predetermined cross-sectional area
thereon adjacent the inlet end of the dispensing passage
responsive to the pressure exerted on the stiff deformable
material to cause the flowable substance or material to be
discharged through the discharge outlet for the dispensing
passage and the discharge outlet to be self-sealing on
release of said pressure forces.
Additionally, the squeezeable and disposable carton as
above described including at least one notch to facilitate
separating or sever;ng a portion of the dispensing means
to form an open end defining the discharge outlet for the
dispensing passage in the dispensing means.
Additionally, the generallY unitary blank for forming the
squeezable and disposable container as above described
comprising, a relatively thin sized and shaped flat member
of stiff deformable carton material, said flat member
having, a peripheral connecting edge therearound
crnnectible at associated prrtions therer,f when s~id flat
~ Z4~
member is folded on its self to form the squeezeable and
disposable container, said flat member having,
i. a shaped central section defined by spaced fold
lines transverse to the longitudinal axis of the flat
member, and
ii. a first side wall having a depression formed
therein between the peripheral connecting edges and a
second side wall having a depression formed therein
between the peripheral connecting edges respectively
disposed on opposite sides of the central section and each
of said side walls having one respective end thereof
continuous with the associated transverse fold line on the
adjacent side of the centra1 section, and
iii. means on the flat member forming a severable
dispensing member for defining a discharge outlet when the
generally unitary blank is formed into the squeezeable and
disposable container.
Accordingly, it is a principal object of the present
invention to provide an improved squeezeable and
disposable container for holding and dispensing a flowable
material wherein the container is made from a generally
unitary flat sized and shaped blank of stiff deformable
carton material.
It is another object of the présent invention to provide
an improved squeezeable and disposable container for
holding and dispensing a flowable material made from a
generally unitary flat sized and shaped blank of stiff
deformable carton material having at least one transverse
wall capable of separating and supporting associated side
walls to form and maintain a storage chamber in said
formed container.
!
It is another object of the present invention to provide
an improved squeezeable and disposable container for
holding and dispensing a flowable material made rrom a
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generally unitary flat sized and shaped blank of stiff
deformable carton material which includes a dispensing
means that is continuous with and extends from the
peripheral portion of the container at any one or more of
a plurality of locations and has a severable means to
provide a discharge outlet for the flowable material.
It is another object of the present invention to provide
an improved squeezeable and disposable container having a
dispensing means having at least one notch means therein
to facilitate tearing or separating of at least a portion
of the dispensing means to form a discharge outlet for
dispensing the flowable material stored on the dispensing
means.
It is still another object of the present invention to
provide an improved squeezeable and disposable container
for holding and dispensing a flowable material which
includes a dispensing means which defines a discharge
passage for the flowable material when severable means
therein forms a discharge outlet which discharge outlet is
self closing by the compressive forces acting adjacent the
inlet end of the discharge passage in the dispensing
means.
It is still another object of the present invention to
provide an improved squeezeable and disposable container
for holding and dispensing a flowable material which
includes a dispensing means for defining a discharge
passage and discharge outlet when torn or cut wherein said
dispensing means has at least one convolution transverse
to the discharge passage in the dispensing means for
providing increased compressive forces to improve the
tendency of the walls of the dispensing means to adhere
more tightly together to prevent the flowable material
from passing through the discharge passage in and
discharge opening for the dispensing means.
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124a~961
It is a still further object of the present invention to
provide an improved generally unitary flat si. d and
shaped blank of stiff deformable carton material adapted
when folded on itself to define an improved squeezeable
and disposable container.
It is a still further object of the present invention to
provide a generally unitary flat shaped and sized ~lank of
stiff deformable carton material for use in forming a
squeezeable and disposable container wherein the blank
includes a shaped central section and operatively
associated mating side walls which in assembled position
define and maintain continuously a storage chamber in the
container.
With these and other objects in view the invention
consists of various features and combination of parts
which may be described in connection with the accompanying
drawings showing a preferred embodiment and several
variations thereof.
BRIEF DESCRIPTION OF THE DRAWINGS
FIGURE 1 is a plan view of the generally unitary blank of
flat sized and shaped stiff deformable material for
forming a squeezeable and disposable container in
accordance with the present invention.
FIGURE 2 is a side elevational view of one preferred
embodiment of the formed squeezeable and disposable
container in accordance with the present invention wherein
the dispensing means is disposed at one end of the
container in the generally longitudinal line thereof.
FIGURE 3 is a cross-section taken on line 3-3 of FIGURE 2.
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124~P961
FIGURE 4 is a side view of another embodiment of the
formed squeezeable and disposable container in accordance
with the present invention wherein the dispensing means is
disposed at one end of the container but is offset from
the longitudinal line thereof and generally continuous
with the peripheral connecting edge for the side walls
thereof.
FIGURE 5 is a side view of another embodiment of the
formed squeezeable and disposable container in accordance
with the present invention wherein the dispensing means is
disposed generally transverse to the longitudinal axis of
the container and generally continuous with one end of the
container, and the dispensing means is also shown at an
angle to the end of the container in dotted lines.
FIGURE 6 is a side view of another embodiment of the
squeezeable and disposable container in accordance with
the present invention wherein the dispensing means is
disposed generally transverse to the longitudinal axis for
the container and adjacent to the shaped central section
thereof.
FIGURE 7 is a cross-section taken through lines 7-7 of
FIGURE 6 illustrating the meeting of the walls of the
dispensing means and its association with the peripheral
connecting means of the side walls adjacent to the shaped
center section.
FIGURE 8 is a side view of a squeezeable and disposable
container in accordance with the present invention
substantially similar to the embodiment shown in FIGURE 6
~ wherein the dispensing means has one side disposed
; 30 continuous with and adjacent to the shaped center section
and the opposite side oblique to the peripheral connecting
edge of the associated side walls.
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FlGURE 9 is a side view of another embodiment of the
squeezeable and disposable container in accordance with
the present invention wherein peripheral flanges or side
edges about the dispensing means at one end of the
container are equal in width to the container body and
define a relatively narrow discharge outlet.
FIGURE 10 is an enlarged view of the cross-section of
FlGURE 7.
FIGURE 11 is a side view of another embodiment of the
squeezeable and disposable container in accordance with
the present invention wherein the shaped center section is
generally rectangular and forms a triangular section on
the respective opposite sides thereof with the associated
sides and the peripheral connecting edges for the
container.
FIGURE 12 is a perspective view of the form of the
invention shown in FIGURE 11.
FIGURE 13 is a partial side view of another form of
dispensing means for a squeezeable and disposable
container in accordance with the present invention having
a plurality of transverse convolutions thereon.
FIGURE 14 is an enlarged side view in partial vertical
section of the dispensing means with the transverse
convolutions thereon as shown in FIGURE 13.
DESCRIPTION OF THE PREFERRED EMBODIMENT
Referring to the drawings FIGURE 1 shows a generally
unitary blank 1 of flat sized and shaped stiff deformable
carton material or carton type material or a coated
material of the carton type which is more fully described
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1241~91
below, and is used to form the container generally designated
2 in accordance with the present invention. This container
will have a stable generally formed shape which will not
materially bulge under the pressures exerted by the flowable
substances or materials which are charged into the container
and are dispensed therefrom under manual or other pressure
forces.
The generally unitary shaped and sized flat blank 1 shown in
FIGURE 1 will when folded onto itself define the squeezeable
and disposable container 2 as shown in FIGURES 1 and 2 of
the drawings.
It will be understood by those skilled in the art that the
blank 1 is only intended to be illustrative of the principles
by which the structure and function of the squeezeable and
disposable containers in accordance with the present invention
are achieved. Other generally unitary flat sized and shaped
blanks of carton material are provided to form squeezeable
and disposable containers in accordance with the embodiments
of the invention having shapes and sizes which differ from
those shown in FIGURES 2 and 3. These additional embodiments
are illustrated in FIGURES 4, 5, 6, 8, 9, 11, 12, 13 and 14
of the drawings. Therefore, the additional embodiments as
hereinafter described will all have the same character
numeral references for the parts and elements thereof because,
in principle, they are constructed similar to the form of
the invention shown in FIGURES 1, 2 and 3.
The generally unitary flat sized and shaped blank 1 is
characterized by a peripheral or circumferentially disposed
connecting side flange 6 therearound. Thus, when the blank
1 is folded on itself or bent in a U-shape about the medial
area defined by transverse lines indicated by the dotted
lines 3a-3b, mutually opposed side flanges can be adhered
or sealed
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together to provide the squeeæeable and disposable
container generally designated 2 in accordance with the
present invention.
In order to obtain the desired shape or configuration, for
example as shown in FIGURES 2 and 3 of the drawings, the
blank 1 will be provided with a central section 3 which is
disposed so that the transverse lines 3a-3b are located in
the medial section thereof and the shape and size of the
central section 3 is defined by the fold lines 3a and 3b
respectively disposed a spaced distance and on opposite
sides of the central portion 3.
Further, blank 1 is provided with a first side wall 4a and
a second side wall 4b respectively disposed on opposite
sides of the central portion of section 3 so that one
respective end thereof is continuous with the associated
fold lines 3a or 3b as may be the case for each given side
wall.
The side walls or portions 4a and 4b have depressions res-
pectively formed therein between the peripheral connecting
flanges 6 along the side edges of the respective side wall
The side walls 4a and 4b are operatively associated with
the central sections 3 so that when the blank 1 is folded
on itself and the mating edges of the connecting flanges 6
adhered or sealed the central section 3 forms a base and
together they define a storage chamber or cavity 4 for the
flowable substances or materials to be held and dispensed
from the squeezeable and disposable container 1, all of
which is shown by FIGURES 1, 2 and 3 of the drawings.
Those skilled in the art will readily recognize that in
order for the container to act as a dispenser of the
flowable material, that the same must be charged into the
container 1. Therefcre before the mating edge of the
entire peripheral connecting flanges are sealed, one
13 12~96~
seCtion thereof will be held open to permit the flowable
substance or material to be charged into the storage
chamber 4 of the container, and thereafter this open
section will be sealed to place the container in condition
for dispensing the flowable material therefrom in the
manner now to be described.
In the present invention in order to dispense the material
from the container 1 a suitable dispensing means or dis-
pensing tongue generally designated 7 is provided. Dis-
pensing means or tongue 7 having dispenser walls borderedby tongue flanges and forms a discharge outlet 8 which
is in communication, by virtue of a dispensing passage, at
one end with the storage chamber 4 and which can be opened
for dispensing purposes by separating or tearing the end
or severable sealing flange of the dispensing means or
tongue 7. The dispensing means 7 is further characterized
by the fact that the discharge outlet 8 is normally closed
and will be self closing or nearly automatically self-
sealing due to the materials from which the containers are
made and by reason of the release of the compressive
forces used in dispensing the material from the storage
chamber 4.
Thus remote from the transverse fold lines 3a and 3b and
central section 3, blank 1 is provided with matching or
shaped ends as at 9a and 9b so that when the blank 1 is
folded on itself the dispensing means or tongue 7 is
formed for the container 1 which are also sealed when the
peripheral connecting flanges 6 are adhered or bonded
together. However as is clear from FIGURES 1, 2 and 3,
the peripheral connecting flanges 6 and the shaped ends 9a
and ~ are so formed that there is defined the discharge
outlet 8 which communicates at the inlet end with the
storage chamber 4 but is sealed at the end opposite there-
: from so long as the dispensing means or tongue 7 remains
intact and a portion thereof is not torn or separated
from the outlet or discharge end of the dispensing means or
tongue 7.
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In the illustrated embodiments in accorance with FIGURES2, 3 and 4 and to a certain extent also in FIGURE 5, the
dispensing means or tongue 7 with the normally closed
discharge outlet 8 is disposed opposite or remote from the
bottom section 3.
In FIGURES 6 and 7, the dispensing means or tongue 7 with
the discharge outlet or opening 8 is provided on a side
edge adjacent to the shaped bottom 3. At this location as
shown in FIGURE 7 and, the angular space or transition
area 10 is sufficiently strong that the self-sealing
characteristics of containers in accordance with the
present invention is very pronounced. In this form of the
invention the container 1 is discharged by squeezing from
the flatter or thinner section remote from the shaped
bottom 3 to the wider or thicker section thereof.
In the illustrated embodiments in accordance with FIGURES
2 to 8 of the drawings the width of the surrounding edge
or flange 7 about the discharge outlet 8 is about the same
~as the edge or flange 6 about the remainder of the
container which is advantageous for manufacturing
purposes.
In the embodiment of FIGURE 9, the peripheral flange or
side edge 9c has a greater width in the area of the
discharge outlet 8 because the total blank width selected
is uniform in this area thus generating a simpler torm of
the blank I for this form of the invention.
The dispensing means or tongue 7 may be provided with one
or a plurality of tear off aids for example as shown by
the oppositely disposed notches at 12-12 in the peripheral
flanges or side edges 9a and 9b. Notches 12 when disposed
in an area which is generally rectangular with respect to
the discharge outlet 8 can be formed with two notches
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Jisposed on opposite sides with respect to each other.
This construction is desirable because it enables the
dispensing means or tongue 7 to be unsealed, by tearing
off or cutting off a portion in a generally straight line.
Further the user can tear or cut off this portion of the
dispensing means or tongue 7 from either side of the
discharge outlet 8. The peripheral flanges or side edges
9a-9b which are a continuation of the flanges 6 about the
remaining portion of the container 1 act to maintain the
dispensing means or tongue 7 in a flat engaged and sealed
position so as to seal the discharge outlet 8 even after a
portion of the dispensing means or tongue 7 is removed.
Another modified embodiment of the invention is shown in
FIGURE 8 wherein the discharge outlet 8 which penetrates
the peripheral flanges or side edges 6 of container 1 will
have a relatively large rectangular inlet opening at the
end which communicates with the chamber 4 in the container
1 and will taper therefrom to the discharge end of the
discharge outlet 8. This tapering design of the discharge
outlet 8 could natura11y be provided in all of the other
illustrated embodiments of the invention as will be
understood by those skilled in the art.
,, .
The dispensing means or tongue 7 which forms the discharge
outlet 8 will by reason of this structure have a generally
triangular cross-section whereby one triangular side is
continuous with the peripheral edge 6 of the container 1
so as to form the angular transition 10, a second
triangular side is formed by an edge continuous with and
flush with the bottom 3 and a third triangular side is
formed by an oblique edge. This triangular arrangement
can of course be reversed or a more acute angle
established as may be desirable for dispensing materials
from the space 4 in the container 1.
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FlGURE 6 for example shows that one side of the dispensing
means or tongue 7 can be rectangular in plan view and
flush with the adjacent side of the bottom 3 similar to
the form of the invention shown in FIGURE 8. The effect
of this construction is that the corresponding discharge
outlet 8 is disposed in an area wherein the angle between
the side walls 4a-4b and the peripheral flanges or side
edges 6 of the container or ~he flanges about the
discharge outlet 8 is at an angle which provides
particularly strong and effective self closing forces for
the section of the dispensing means or tongue 7 defining
the discharge outlet 8 in these forms of the invention.
;, FIGURE 3 further shows that where the bottom section 3 is
unitarily connected with the side walls 4a-4b of the
container that it has an oval shape and is indented
with respect to the peripheral flanges or side edges 6.
However the effect of this construction is that the shape
of the container 1 from the bottom section 3 into thè side
wall is substantially rectangular in plan view and the
center line for the container which extends through the
bottom 3 parallel to the peripheral flanges or side edges
6 is a straight line. In this manner, a relatively stable
bottom section 3 is obtained and maintained during the use
of the container l, for example when the contents are
squeezed from the storage chamber 4 defined by the bottom
section 3 and side walls 4a-4b of the container.
However, because of the type of material from which the
container is made it is possible to empty the container
completely by merely exerting sufficient force to destroy
the shaped bottom area 3.
A plurality of notches as at 12a, 12b and 12c as shown in
FIGURE 8 can be disposed successively along the dispensing
means or tongue 7 in the discharge direction of the
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discharge outlet 8. This is particularly illustrated in
FIGURE 8 where the discharge outlet 8 is tapered in
cross-section. This taper discharge outlet 8 permits the
user of the container to modify the cross-sectional area
of the discharge outlet 8 as may be required or may be
desirable for dispensing the flowable substance or
material to be dispensed from the container 1. Where the
discharge outlet 8 is not tapered but a plurality of
notches 12 are provided, the user of the container by
tearing or cutting off the notched sections 12
progressively will be able to provide a larger or a
smaller dispensing and sealing area as may be desirable
depending upon the flowable substance or material being
dispensed from the contàiner.
Thus, when the container 1 as illustrated at FIGURE 8 is
full the notched section 12a furthest from the space or
chamber 4 would first be used so as to provide a longer
longitudinal sealing area for the dispensing means or
tongue 7 which defines the discharge outlet 8. Thereafter
as the materials are discharged from the container 1, the
longitudinal extent of the sealing area can be shortened
by tearing off or cutting off the next notched sections
12b and 12c respectively as may be desirable or necessary
in the use of the container.
~'' .
Thus, collectively a container 1 has been illustrated
i which as shown by the blank 1 in FIGURE 1 is simple in
construction, does not require a particular closure device
as in the prior art devices made from metal or plastic,
and which still can be either a single use disposable
container or a container which permits the contents to be
dispensed in a plurality of dispensing steps or portions
of the flowable material as may be required.
A container of this type is particularly adapted to
contain cosmetics, for exampie a hair washing agent which
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is iniermittently used by dispensing a first portion and
later dispensing a second or a third portion. In the
prior art containers consisting of plastic foil this ty~e
of multiple dispensing is difficult to achieve if it can
be achieved at all. Another use for a container of this
type is its adaptability for storing and dispensing
mustard, ketchup, mayonnaise, etc.
The improved des-ign of a squeezeable container in
accordance with the present invention is made particularly
clear by the enlarged cross-section at FIGURE 10 of the
drawings. FIGURE 10 shows that the dispensing means or
tongue 7 is formed by coacting walls 9a and 9b which by
, reason of the material and construction of the container 1
are disposed so that the inner walls are in tight
superimposed engagement with each other particularly
adjacent the outermost end. The dispensing outlet 8 is
shown as initially sealed except adjacent a portion of the
end thereof in communication with the space or chamber 4
for the material to be dispensed as at the Y-shaped ar,ea
8a which is formed by the walls 9a-9b. This area on the
walls of the container is the transitional section 10
between the walls 9a and 9b of the dispensing means or
tongue 7 and the side walls 4a and 4b of the container
which define the space or chamber 4. The material of the
container and this design create a sufficient compression
between the walls 9a and 9b so as to provide the required
forces for maintaining the dispensing means or tongue 7
normally closed and also to serve provide the inherent
self closing effect after a portion of the material stored
in the space or chamber 4 is squeezed through the
dispensing outlet 8 from the container 1.
lt will be understood by those skilled in the art that the
dispensing means 7 could also be connected to the
container 1 at a corner, for example opposite the bottom
section 3 as is indicated by the broken lines identified
as 7a in FIGURE 5.
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FIGURES 1 to 9 of the drawings show containers wherein the
bottom section 3 has an advantageous lenticular and
inwardly bulging or indented shape. FIGUR S 11 and 12
show a further embodiment of the inventior~ wherein the
bottom section 3 or the corresponding center section of
the blank 1 has a multi cornered shape~ for example a
hexagonal shape which is particularly illustrated in the
perspective embodiment of container 1 in FIGURE 12.
FIGURES 11 and 12 further show that the bottom 3 has side
portions as at 11a and 11b which are triangularly shaped
one side being continuous with the peripheral flanges or
side edges 6 of the container and the other side remote
therefrom being in proximity with one of the sides of the
connecting bottom portion llc which is rectangular. This
construction permits the container 1 to be rested on a rod
like support by reason of the rectangular bottom area llc.
One further embodiment of the invention is illustrated in
F 1 GURES 13 and 14.
FIGURE 13 and 14 in plan view and partial perspective
çross-sectional view respectively show the dispensing
means or tongue 7 with the discharge outlet 8 so that the
superimposed wa11s 9a and 9b on opposite sides of the
discharge outlet 8 are creased or rippled so as to provide
transverse convolutions as at 12a and 12b on the
dispensing means or tongue 7.
FIGURE 14 particularly illustrates the wave shaped or
convoluted profile of these transverse creases and this
construction is particularly desirable because it provides
improved sealing of the discharge outlet 8 after the
normally closed dispensing means or tongue 7 is opened by
tearing or cutting the notches 12 so as to open the
: discharge outlet 8 formed by the dispensing means or
tongue 7.
3.
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3961
~his construction is particularly advantageous when the
discharge outlet 8 is located on the container at a very
acute angle with the walls 4a and 4b. More particularly
when it is located at the edge opposite from the shaped
bottom 3 where the pressure forces acting to move the side
walls into self closing relation is less pronounced.
Additionally this improved sealing means is also
advantageous where the material in the container to be
dispensed is a liquid medium.
It will be understood that the invention is not to be
limited to the specific construction or arrangement of
parts shown but that they may be widely modified within
the invention defined by the Claims.
