U.S. patent application number 11/935395 was filed with the patent office on 2009-05-07 for dual receptacle symmetrical package for liquids.
Invention is credited to Geoffrey Catherwood Stuart.
Application Number | 20090114677 11/935395 |
Document ID | / |
Family ID | 40587088 |
Filed Date | 2009-05-07 |
United States Patent
Application |
20090114677 |
Kind Code |
A1 |
Stuart; Geoffrey
Catherwood |
May 7, 2009 |
Dual Receptacle Symmetrical Package for Liquids
Abstract
A dual receptacle package for liquid material comprises a
container. A central ridge formed into the container separates the
container into two chambers. The two chambers may contain different
material with minimal or no cross-contamination between the
chambers. The content of the chambers is dispensed via a single or
dual tunnel. The single or dual tunnel is opened into a single or
dual orifice opening when a closure for the package is removed.
Inventors: |
Stuart; Geoffrey Catherwood;
(Faulconbridge, AU) |
Correspondence
Address: |
MICHAEL MOLINS;MOLINS & CO.
SUITE 5, LEVEL 6, 139 MACQUARIE ST
SYDNEY NSW
2000
AU
|
Family ID: |
40587088 |
Appl. No.: |
11/935395 |
Filed: |
November 5, 2007 |
Current U.S.
Class: |
222/94 ;
222/129 |
Current CPC
Class: |
B65D 75/5811 20130101;
B65D 2221/00 20130101; B65D 81/3261 20130101 |
Class at
Publication: |
222/94 ;
222/129 |
International
Class: |
B65D 35/22 20060101
B65D035/22 |
Claims
1. A dual chamber package, comprising: a container having an outer
perimeter; the container having formed into it a cleft, the cleft
dividing the container into two chambers; each chamber having an
exit port; the exit ports leading into a merge area; a dispensing
tunnel extending from the merge area; and a cover joined to the
outer perimeter.
2. The package of claim 1, wherein, the chambers are symmetrical
about the cleft.
3. The package of claim 1, wherein, each chamber narrows toward its
exit port.
4. The package of claim 1I, wherein, a length of the dispensing
tunnel is several times longer than a width of the tunnel.
5. The package of claim 1, wherein, the cover tapers towards an
extended end.
6. The package of claim 1, wherein, the seal is joined to a flat
topped surface of the cleft.
7. The package of claim 1, further comprising, a closure and a
score line located adjacent to one end of the tunnel
8. The package of claim 1, further comprising, a closure, the
closure being located adjacent to a notch formed into the outer
perimeter
9. The package of claim 1, wherein, a content of the chambers is
visible through the container.
10. A dual chamber package, comprising: a container having an outer
perimeter; the container having formed into it a cleft, the cleft
dividing the container into two distinct chambers; is each chamber
being dischargeable through a tunnel; and a cover joined to the
outer perimeter.
11. The package of claim 10, wherein, the chambers are symmetrical
about the cleft.
12. The package of claim 10, wherein, each chamber tapers toward
the tunnel.
13. The package of claim 10, wherein, the container and the cover
are constructed from materials of different stiffness.
14. The package of claim 10, wherein, The closure is a snap-off
closure.
15. The package of claim 10, wherein, a length of each tunnel is
several times of a width of the tunnel.
16. The package of claim 10, wherein, the cover is joined to a flat
surface of the cleft.
17. The package of claim 10, wherein, the cleft tapers and becomes
narrower toward the cover.
18. The package of claim 10, wherein, the two tunnels are separated
from each other only by a top surface of the cleft.
19. The package of claim 10, wherein, the cleft extends through a
full length of the container.
Description
FIELD OF THE INVENTION
[0001] The present application relates to a package for containing
liquid materials, in particular, a flexible dual receptacle
package.
BACKGROUND OF THE INVENTION
[0002] Currently liquids such as jams, honey, conserves, sauces and
condiments of various kinds--including such products as tomato
ketchup, mustards, mayonnaise, salad oils, chili sauce, jams,
liquid chocolate, hazelnut, peanut jelly, and other such flavour
additives, combinations and other like products are sold in
individual, single-serve packages in the food service and
hospitality trade. These packages are generally manufactured as a
small pre-formed plastic or alumina cup, tub or tray, or vacuum
formed plastic cup, tub or tray--usually round, rectangular or
square in shape with almost vertical, conical shaped side walls,
flat base and a soft peel-off closure forming a lid to enclose,
cover and protect the contents. A small extension of the lid acts
as a means of peeling the lid backwards to detach the lid from the
main body of the package in use. A variation of this is also used,
where a section tab of the tray body is centrally scored under the
lid section to create a break point or weakened section score mark,
such that when this score section is snapped the lid tab is easier
to remove and contents revealed.
[0003] While larger bottles of such products are sold individually,
the hospitality and catering trades commonly use individual, single
serve packages as a means of presenting an individual food service
portion and also avoiding human contact, cross contamination and
wastage inherent in larger package forms.
[0004] Typically packages of this type can be thermo formed or
pre-formed and filled or thermo formed and filled in one operation.
They may be packed on machinery such as a Dosamat manufactured by
Hermann Waldner (Germany); mini dose machines manufactured by Elton
S.A from Spain, as well as using machines manufactured by other
companies who may specialize in single serve packaging. The current
invention can use the same type of equipment for filling the
package, but with a dual filling operation for two separate liquid
types.
[0005] The existing packages may be difficult for consumers to
handle. A consumer may need to peel off the lid to open, and once
opened the contents must be removed using a spoon or knife to
dispense the contents of the package. This is usually a messy
procedure.
[0006] An alternative package has also been developed for sauces
with a dual chamber plastic package--with a flat base, and
rectangular shape where the lid section has a purpose made
weakened, raised, and positioned lengthwise score line midway
between the two longer parallel sides. When the two chambers under
the lid are squeezed together, the contents are dispensed via the
weakened scored section through the lid. This package can only
deliver the contents of the package if the two chambers are
squeezed toward each other, and by no other method.
[0007] Again, such packages are messy to handle, and there is
little control over the delivery of the contents, which tend to
squirt out, and in some cases cause the contents to spill onto the
user. There is little control over the dispensing of such contents,
with the package-opening pointed away from the user so that it is
not visible to the user when dispensing the product.
[0008] The current invention is designed to increase visible
control over the direction of dispensing and the dispensed quantity
of such liquids, and therefore overcome the deficiency of such
existing packages.
[0009] Small volume packages are also used in the cosmetic and
toiletries industry, where the most common form of package is a
small bottle or vial. The bottles or vials may be glass, plastic,
or soft plastic tubes of various kinds that have lid closures. Such
packages may be used for a range of products including skin care
products, cosmetics, hand and face creams, skin lotions, suntan
screens, liquid soaps of various kinds and other such products,
including samples and demonstration of various cosmetics.
[0010] There are shortcomings of such single-serve packages and
small bottles for containing and dispensing a pre-determined amount
of a liquid. The invention disclosed herein seeks to provide a
controlled means of dispensing a liquid product via a defined,
visible and apparent opening that becomes visible after the removal
of closure system at one end of the package. The disclosed
technology also provides alternative means of dispensing the
product--by opening the closure and squeezing individual chambers
together, separately, or in sequence.
[0011] With each chamber containing an accurate measured volume of
liquid, it is possible to ensure a volume relationship between the
two separate liquids held in each chamber of the package.
[0012] Further, the present invention enables two separate products
to be dispensed from the one package for a single use, but for dual
purposes.
[0013] The current technology may have application as a single use,
dual purpose package as a sampling tester in the cosmetic
industry--where small volume packages are useful to those people
wanting to test a product prior to purchase, and useful to cosmetic
companies as both a demonstration and test sampling device. It is
also preferably of a size and shape that is suited to use as a
purse pack that may be useful during travelling, particularly given
restrictions on larger packages through airport security.
[0014] Further, the present invention enables the user to use the
package as a means of controlled decoration of a surface--such as
to create a decorative individual pattern of tomato sauce/mustard
on a hot dog, bagel, sub or sandwich; to add a white and brown
chocolate coating onto a cake; signature decorations on a coffee or
cake; decorative salad oils onto salads; use as a face paint for
children's parties and such other purposes as determined by the
user.
[0015] In effect this enables the user to use the package as a form
of writing or drawing instrument using the contained liquid to draw
with and create a recognizable artistic pattern, signature or
shape.
[0016] Further, the present invention has application in the home
hobby, hardware and plumbing businesses for applications such as
glues--including two part glues; epoxies; sealants; silicones; and
paints of various kinds where a single serve package form is
desired to minimize wastage or when two associated components are
used to create the desired end product mix.
[0017] While the package has be designed as a dual chamber package
for two separate types of liquid, it will be readily appreciated
that the package can also be used for one type of liquid in both
chambers of the package.
[0018] In another depiction of the package, a single orifice
opening is also possible where the separation of the two liquids is
not specifically required or desired.
[0019] In general, the package will be constructed from a
thermo-formed or as pre-formed vacuum package, but equally it could
be formed in a variety of soft plastics or laminates which might be
clear, opaque, translucent or coloured for decorative or other
reasons.
[0020] It is also possible that the package form could also be
textured or sculpted and coloured to create a creative decorative
effect and resemble the surface and visual colour of a fruit such
as a lemon or strawberry or other such object.
[0021] As a single serve package holding two independent but
related liquids, the invention eliminates the need for two separate
packages and the additional packaging materials involved. It allows
for savings in space, transport cost, environmental cost, and
inherent costs associated with having two separate packages. The
present technology has the potential to achieve significant cost
savings in manufacture, distribution and beyond the sale to the
point of disposal.
[0022] The present technology has a number of advantages over
conventional single serve packaging forms. It combines two separate
products into one package. It may be useful for dispensing single
serve products such as sauces and condiments, certain alcohols,
cocktail mixes, milks and other foods or beverages of a liquid or
semi liquid form, cosmetic and toiletries products such as liquid
soaps, face and body creams, shampoos and conditioners, artist
materials, glues and hardware, plumbing, sealing compounds and such
like products.
[0023] In particular, the package contains two separate liquids
that are isolated from each other, with no cross contamination, in
a single serve package form. The package enables both liquids to be
dispensed for a common use, or be dispensed sequentially as
needed.
[0024] Further, the use of a single or dual orifice and closure
system enables the contents to be dispensed in a controlled flow.
It can also be used directionally to dispense the contents in a
more defined manner. Moreover it enables the contents to be used
for a decorative effect, as in a personal signature using the
contents to draw with, with the user having precise control in
dispensing the content. For example, the package might be used to
draw a straight or random line on a hot dog using mustard and
tomato ketchup, to provide a dual colour and taste combination. The
package may be useful for creating a signature or message on a
cake, donut, bagel, or coffee using the contents. The package may
be useful in containing a two-part glue and merge the two compounds
together at the point of use.
[0025] In reading the specification it should be noted that any
discussion of documents, acts, materials, devices, articles or the
like which have been included is solely for the purpose of
providing a context to the present invention. It should not be
taken as an admission that any or all of these matters from part of
the prior art base or were common general knowledge in the field
relevant to the present invention as it existed before the priority
date of each claim of this application.
SUMMARY OF THE INVENTION
[0026] According to the first aspect, the present invention is a
package comprising two separate, symmetrical chambers. The chambers
are sealed by a separate top lid that defines the overall shape of
the package. A central ridge, which separates the two chambers,
also operates as a hinge between the two chambers.
[0027] According to the second aspect of the invention, the present
technology is a method of dispensing a predetermined volume of a
liquid material or substance, by opening the end closure to provide
a single or dual orifice opening, and to enable the user to
dispense the contents by squeezing the contents of each chamber in
the package, either separately, sequentially or together.
BRIEF DESCRIPTION OF THE DRAWING FIGURES
[0028] By way of example only, the invention is now described with
reference to the accompanying drawings:
[0029] FIG. 1 is a perspective view of a heart-shaped dual orifice
package, showing the dual chambers in which the contents will be
contained, and the dual orifice opening through which the contents
will be dispensed;
[0030] FIG. 2(a) is an exploded perspective view of the dual
orifice package, depicting a sealing lid and a container
structure;
[0031] FIG. 2(b) is an exploded elevation view of the dual orifice
package depicted in FIG. 1;
[0032] FIG. 2(c) is another exploded perspective view of the dual
orifice package;
[0033] FIG. 3(a) is a left elevation view of the dual orifice
package;
[0034] FIG. 3(b) is a bottom plan view of the dual orifice
package;
[0035] FIG. 3(c) is a bottom perspective view of the dual orifice
package;
[0036] FIG. 3(d) is a front elevation view of the dual orifice
package;
[0037] FIG. 3(e) is a right elevation view of the dual orifice
package;
[0038] FIG. 3(f) is a top plan view of the dual orifice
package;
[0039] FIG. 3(g) is a top perspective view of the dual orifice
package;
[0040] FIG. 4 is a perspective view of an embodiment of the
package, the embodiment being heart shaped and having a single
orifice;
[0041] FIG. 5(a) is a bottom plan view of the embodiment depicted
in FIG. 4;
[0042] FIG. 5(b) is a bottom perspective view of the embodiment
depicted in FIG. 4;
[0043] FIG. 5(c) is a front elevation view of the embodiment
depicted in FIG. 4;
[0044] FIG. 5(d) is a right elevation view of the embodiment
depicted in FIG. 4;
[0045] FIG. 6 is a perspective view of another embodiment of the
package that is tear shaped and has a single orifice;
[0046] FIG. 7(a) is a bottom plan view of the embodiment depicted
in FIG. 6;
[0047] FIG. 7(b) is a bottom perspective view of the embodiment
depicted in FIG. 6;
[0048] FIG. 7(c) is a front elevation view of the embodiment
depicted in FIG. 6;
[0049] FIG. 7(d) is a side elevation view of the embodiment
depicted in FIG. 6;
[0050] FIG. 8 is a perspective view of an embodiment that is round
and has a single orifice;
[0051] FIG. 9(a) is a bottom plan view of the embodiment depicted
in FIG. 8;
[0052] FIG. 9(b) is a bottom perspective view of the embodiment
depicted in FIG. 8;
[0053] FIG. 9(c) is a front elevation view of the embodiment
depicted in FIG. 8;
[0054] FIG. 9(d) is a side elevation view of the embodiment
depicted in FIG. 8;
[0055] FIG. 10 is a perspective view of an embodiment that is
`comma` shaped and has an extended orifice section;
[0056] FIG. 11(a) is a bottom plan view of the embodiment depicted
in FIG. 10;
[0057] FIG. 11(b) is a bottom perspective view of the embodiment
depicted in FIG. 10;
[0058] FIG. 11(c) is an elevation view of the embodiment depicted
in FIG. 10; and
[0059] FIG. 11(d) is another elevation view of the embodiment
depicted in FIG. 10.
BEST MODE AND OTHER EMBODIMENTS OF THE INVENTION
[0060] The dual chamber package will be generally be developed in a
heart shape, tear-drop, round, oval, kidney, comma or another
shape, for example symmetrical alphabets such as M or W. Referring
to FIGS. 1 to 3, the shape of the package 10 is largely defined by
those of the lid (or "cover") 11 and a container 12. For the
purpose of this specification, the lid (or "cover") 11 is defined
as the top of the package. The container 12 has two chambers 13, 14
that are separated from each other by a central cleft 15 formed
into the container. In the embodiment shown, the cleft tapers and
becomes narrower toward the lid (or "cover") 11. Here the cleft 15
also extends a full length of the container 12. The cleft 15 looks
like a ridge when it is viewed from the interior of the container
12 (see FIG. 2(a)). In the embodiment shown, the chambers 13, 14
taper toward an extended end of the container, and narrow into
dispensing channels 26, 27. Each channel 26 (27) is in
communication with its corresponding chamber 13 (14). The channels
become dispensing tunnels 26, 27 when the container 12 is sealed by
the top lid (or "cover") 11. The tunnels 26, 27 are elongated. The
length 30 of each tunnel is several times the tunnel's diameter (or
"width") 31. Preferably the tunnels 26, 27 are substantially
parallel to each other, the tunnels being adjacent to each other
and separated only by the cleft.
[0061] The cleft (or "ridge") 15 also operates as a hinge
mechanism, akin to that of a butterfly. The two separate chambers
(or receptacles)1 3, 14 come together as wings when pressure is
applied, and the content of each chamber is dispensed via an
orifice (not shown) that is closed by a closure 16. The orifice and
the closure 16 are located at an extended end 17 of the central
ridge 15. The size of the orifice and closure 16 may vary, as long
as the closure 16 is easily opened, for example snap-opened, to
enable the contents to be squeezed out via the orifice. In general
the orifice is between 1.0 mm and 3.0 mm in diameter, but this-can
be varied according to the content within the package and overall
size of the package.
[0062] Referring to FIGS. 2(a), (b), and (c), the container 12 may
be pre-formed, vacuum-formed or made in a soft plastic material.
The container has an outer perimeter 21. The outer perimeter forms
part of the top 22 of the container 12. The top 22 of the container
12 is preferably flat to enable easy storage and stacking of
multiple packages. The chambers 13, 14 are equal in shape, volume
and size but are separated by a central ridge 15. As shown in FIG.
2(a), a top surface (or "central inner edge") 23 of the central
ridge 15 is visible from the top as a central partition between the
chambers. The lid may be a plastic, laminate or alumina sheet which
is die cut. Each chamber preferably has a rounded shape that is
widest at the top 22. This shape facilitates easy pre-forming,
manufacture and the stacking or storage of the container, and
provides overall aesthetics to the design,
[0063] The container 12 may be translucent, clear, pearlescent or
coloured, and it may be smooth, textured or sculptured. In some
embodiments of the invention, a coloured and textured package may
be produced to create the illusion of a fruit such as a lemon or
strawberry or other such object that reflects the contents.
[0064] The central inner edge 23 also forms a part of the
container's top 22. The central inner edge 23 and the outer
perimeter 21 provide an attachment area between the container 12
and the lid 11. They are sufficiently wide, so that the lid 11 can
be attached to the container form a secure seal. The sealing may be
done by gluing, heat sealing, or ultra sonic welding. The seal is
secure enough to prevent cross contamination between the content of
the chambers, and to fully enclose the contents by providing an
air-tight and moisture-proof seal.
[0065] The lid (or "cover") 11 is constructed of a barrier material
(food grade where required). The material can be various types
plastics, bio-plastics, alumina or other such material. The cover
11 and the container 12 are preferably constructed using materials
with different stiffness.
[0066] An exterior 24 of the lid 11 may have printed on it indicia
for the purposes of decoration, identification of the content and
the weight or volume of the content, identification of the brand,
date coding other uses. The lid 11 may further have formed in it a
central weakened line 28, for example a score line. The weakened
line 28 aids the folding of the entire package. Using two fingers
such as a thumb and another finger, the user grips the package by
the lid edges or by the two receptacles, and exerts pressure to
dispense the contents in a controlled manner.
[0067] It will be appreciated that the size, volume and weight of
the package will vary according to the type and quantity of the
contents, but overall the package is designed for a single use. It
should also be recognized that the package is tamper evident.
[0068] The two chambers 13,14 may contain the same product or
different products that are complementary to each other. A wide
variety of viscous, semi-viscous or liquid materials may be
contained in the package. These products could be, without
limitation, alcohols, cocktail mixes and such foodstuffs as
flavourings and sauces of various kinds, including but not limited
to tomato sauce, chili sauce, ketchup, mustards, soy sauce, seafood
sauce, Asian sauces, fruit sauces and such products as condensed
milk, milks, products derived from milk, honey, yogurts, white and
dark chocolate, hazelnut, vanilla, caramel, coffee, strawberry,
apple and other fruit compounds and flavourings as well as
decorative cake icings, fudges and confectionery uses, including
such products as food colourings, liquid herb, soup and spice
mixes; jams, spreads and condiments; mayonnaise and salad oils and
dressings and such like food products.
[0069] The package can be used for toiletry and cosmetic uses. For
example it may contain such products as shampoos, conditioners,
body and face washes, creams and lotions, baby oils, bath
additives, facial scrubs, herbal remedies, skin tonics, suntan
lotions, liquid soaps and other such uses.
[0070] The package can also be used for pharmaceutical purposes of,
for example, dispensing skin remedies, cough and cold remedies,
vitamin supplements and other medicines where a single or dual
serve package is required.
[0071] In the hardware, plumbing and paint industry the package has
application in dispensing decorative paints, single use glues,
silicones and epoxies. In the artist supply market the package has
application as a means of dispensing face paints, artist paints,
colour effects and such like purposes.
[0072] As further shown in FIGS. 2(a),(b), and (c), the lid 11
encloses and seals the contents of the package 10. This lid 11 may
be die cut to define the package size and outline the package
shape, such as a heart shape or another shape. The lid 11 acts as a
seal membrane and is attached to the top of the container 12 via
heat sealing, gluing or other attachment mechanisms. The exterior
24 of the lid 11 is constructed of a material suitable for
printing, decorative, and branding purposes.
[0073] The lid 11 preferably has formed in it a weakened (or
softened) line or score line 25 between a closure 16 for the
package and the rest of the package 10. This line 25 aids the
opening of the package.
[0074] The lid 11 may be manufactured from materials such as
plastics, laminates, bio-degradable or alumina materials which are
inert, food compliant or non-reactive with the contents held within
the package so as to comply with all safety and legislative
issues.
[0075] The container 12 comprises moulded twin chambers 13, 14 and
a central ridge 15 that separates the two chambers 13, 14. The
orifices for the two chambers are joined to a single closure
16.
[0076] The chambers 13, 14 are symmetrical about the central ridge
15. As described previously, each chamber shaped so as to enable
the stacking of filled or unfilled packages. The top perimeter of
the container 12 and the top edge of the central ridge 15 lie on a
single horizontal plane 22. The top perimeter and the top edge are
of sufficient width to enable the lid 11 to be attached via heat
sealing, glues or other means so as to form a complete seal to
preserve the contents of each chamber and keep them separate, one
to the other until the package is used.
[0077] The sides of each chamber are sloped outwardly from the
bottom of the container, so as to enable easy moulding and also
stacking of unfilled chamber packages where they are
pre-formed.
[0078] The container 12 may be smooth walled or in some versions of
the package textured or shaped to have an appearance that suggests
the type of contents. For example the container may be made to
resemble a strawberry or a lemon. The chambers may be pre-tinted in
a colour to add further to the depiction of some contents such as
fruits or other substances.
[0079] The plastics or materials used in constructing the second
part of the package can be clear, transparent, translucent,
pearlescent or coloured as desired, without changing the
functionality of the package form.
[0080] The two chambers mirror each other in size and shape. The
volume of liquids inside each chamber will vary according to the
contents, but will generally be between 1 and 10 ounces.
[0081] In usage each chamber is designed to be squeezed so as to
deliver the contents via the twin orifice tunnels 26, 27 to the
closure 16. This squeezing may be by squeezing the two chambers
toward each other--similar to two butterfly wings folding
together--hinged by the central ridge 15. The chambers may
alternatively be individually squeezed or in sequence to dispense
the contents of one or both chambers.
[0082] The central ridge 15 of the container 12 is designed to
provide a clear separation of the two chambers 13, 14 and twin
orifice tunnels 26, 27 such that the contents do not mix prior to
use The central ridge 15 also offers a means of attaching the lid
section to provide a seal to enclose the contents of the package.
The central ridge further acts as a hinge about which the two
chambers of the package fold toward each other. Therefore, in use
the central ridge performs a vital function.
[0083] The twin orifice tunnels 26, 27 are designed such that they
maintain a separation between the two separate contents until the
time of use--so that no cross mixing or contamination occurs prior
to use.
[0084] The closure (or "end cap") 16 is designed as a snap-off
closure, where a score line 25 defines the position of the opening.
The score line 25 facilitates the user to snap open the closure 16
either completely or partially to create an opening. In certain
configurations a small screw-on overcap, twist plug or other
closure method may be used as an alternative package
closure/opening system.
[0085] Referring to FIGS. 4 and 5, it will be appreciated that in
some examples, the package 40 may have only a single orifice
without affecting the overall operational use of the package. The
contents from both chambers exit to the same tunnel.
[0086] The package 40--described as a `butterfly pack`--is designed
to dispense the contents of the two chambers 41, 42, the two
chambers being symmetrical about a central cleft (or central ridge)
43. The contents may be two distinctly different types of liquid.
Each chamber 41 (42) narrows into a chamber exit port 44(45). The
chamber exit ports 44, 45 come together in a merge area 46. A
preferably elongated channel 47 leads away from the mixing area 47
and toward an extended end 48 of the package 40. The channel 47,
when sealed by the top lid (or "cover") 49, becomes the dispensing
tunnel.
[0087] A closure 50 closes the single tunnel (or channel) 47, and
may be removed from the package 40 along a score line 51. The
removal (for example, by snapping open) of the closure 44 creates a
single orifice or opening through which the chamber contents are
dispensed. The package 40 allows the dispensing of the content with
directional control over the quantity and direction of that flow
for a single individual usage application.
[0088] Referring to FIGS. 6 and 7, a similar package 60 may be
provided, except that the lid is substantially tear-drop
shaped.
[0089] Referring to FIGS. 8 and 9, the package 80 may also be
provided with a round shape.
[0090] Referring to FIGS. 10 and 11, the package 100 may also be
provided with a comma shape. The two chambers 101, 102 are
preferably symmetrical about a central ridge 103. However, the
package 100 itself needs not be symmetrical about the central ridge
103. Here the tunnel 103 is curved to create the comma shape of the
overall package. A notch 105 may further be formed into the
perimeter of the package at a location adjacent to the closure. The
notch 105 may align with the weakened score line 107 between the
closure 108 and the rest of the package. Alternatively, it may
replace the weakened score line.
[0091] While the present invention has been disclosed with
reference to particular examples and details of construction, these
should be understood as having been provided by way of example and
not as limitations to the scope or spirit of the invention.
* * * * *