Tear and spill resistant package for dispensing liquids in a controlled manner
The present invention is directed to a pliable package that is tear resistant, requires a greater degree of dexterity to open, and prevents accidental discharge during or after opening of the package. The package includes a flexible, liquid storage reservoir having a funnel-shaped outlet passageway leading to a opening. The package also includes a reinforced tear resistant tab portion that may prevent accidental discharge of liquid when the tab portion is bent about the score line. The funnel-shaped outlet passageway may be shaped to allow the liquid to be dispensed in a controlled manner.
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The present disclosure claims the right to priority based on U.S. Provisional Patent Application No. 60/788,572 filed on Mar. 31, 2006.
BACKGROUND OF THE INVENTIONI. Field of the Invention
The present invention relates generally to dispensary packages. More particularly, the present invention relates to veterinary packages for dispensing liquids.
II. Description of the Related Art
Over the years, designers have sought to improve container designs and processes for dispensing liquids. Conventional designs, however, suffer from many drawbacks. For instance, typical container designs are not adequately childproof. They are not sufficiently tear resistant to insure that the enclosed liquids are used for their intended uses. Many containers can be opened relatively easily, such as by twisting one part of the container relative to another. Nor do conventional designs adequately prevent liquid from being accidentally discharged during the process of opening the container. In the field of dispensing, the terms “kickback,” “splashback,” and liquid “pops” have been used to describe the problem of accidental discharge that may occur when an opening in the container must be created by tearing a portion of the container along a score line. In addition, current designs are susceptible to uncontrolled discharge after opening because they typically permit liquid to freely flow through the torn opening.
Accordingly, it would be advantageous to provide a container that is tear resistant, requires a greater degree of dexterity to open, prevents accidental discharge during opening, and allows the liquid to be dispensed in a controlled manner.
SUMMARY OF THE INVENTIONThe advantages and purposes of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Moreover, the advantages and purposes of the invention will be realized and attained by means of the elements and combinations particularly pointed out in the appended claims.
One aspect of the invention provides a pliable package for storing liquids therein, including a plurality of flexible, liquid-impermeable superposed sheets being joined together by a liquid-tight seal along their respective peripheral edges; a liquid reservoir enclosed between the superposed sheets, including a funnel-shaped outlet passageway and a liquid discharge opening at a location along the liquid-tight seal; and a reinforced closure located along the liquid-tight seal, configured to block the liquid discharge opening; wherein the funnel-shaped outlet passageway extends across the liquid discharge opening from the flexible reservoir to the reinforced closure.
Another aspect of the invention provides a pliable package for storing liquids therein, including a plurality of flexible, liquid-impermeable superposed sheets being joined together by a liquid-tight seal along their respective peripheral edges; a liquid reservoir enclosed between the superposed sheets, including a funnel-shaped outlet passageway and a liquid discharge opening at a location along the liquid-tight seal; and a reinforced closure located along the liquid-tight seal and configured to block the liquid discharge opening; wherein the funnel-shaped outlet passageway is configured to allow the formation of a meniscus upon unblocking the liquid discharge opening in order to prevent liquids from exiting the pliable package.
Yet another aspect of the invention provides a method of storing liquids inside a pliable package, including providing a plurality of flexible, liquid-impermeable superposed sheets; joining the superposed sheets by a liquid-tight seal along their respective peripheral edges; providing a liquid reservoir between the superposed sheets, the liquid reservoir including a funnel-shaped outlet passageway and a liquid discharge opening at a location along the liquid-tight seal; and providing a reinforced closure located along the liquid-tight seal for blocking the liquid discharge opening; wherein the pliable package prevents spillage and kickback of the liquids during unblocking of the liquid discharge opening.
A further aspect of the invention that is advantageous over the conventional “twist off” style of packages is that once the package is opened there is only one piece to discard. Thus, the risk of a pet or child of swallowing a twist off device may be eliminated.
It is to be understood that both the foregoing general description and the following detail description are only exemplary, and are intended to provide further explanation of the invention as claimed.
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification. The drawings illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention. In the drawings,
Reference will now be made in detail to the present embodiment of the invention, an example of which is illustrated in the accompanying drawings. Wherever possible, the same reference numbers will be used throughout the drawings to refer to the same or like parts.
One embodiment of the invention as shown in
The thermoformed pack may be made from any of the thermoformable plastic flexible film materials having the adequate melt strength. These materials include the polyolefins, with polyethylene and polypropylene being preferred. Other resins that may be used include polyethylene terephalate, polyethylene terephalate glycol modified, high density polyethylene, laminates, multilayered composites comprised of olefins, and other thermoformable materials. In one embodiment, the thermoformed pack is formed of PVC-(Poly Vinyl Chloride), PVDC-(Poly Vinyl Di Chloride film), a multilayer sandwich film of LDPE+EVOH (Ethyl Vinyl Alcohol)+LDPE, OPA-(Oriented Poly Amide)-C.O.C® BAREX®, and ACLAR®.
As best shown in
In one embodiment, the neck portion 50 may be formed as a funnel-shape to gradually restrict the flow of liquid 70 away from the reservoir 40. When the package 5 is held in an upright orientation, this funnel-shape may cause liquid 70 to flow out of the end portion 55 and drain back into the reservoir 40. This is referred to as a “drain back” feature. In another preferred embodiment, a desired amount of air or gas may be included within the reservoir 40 and neck portion 50 to further encourage the liquid 70 to flow out of the end portion 55 when the package 5 is held in the upright orientation. For example, in one embodiment, nitrogen may be injected into package 5 prior to its being filled with liquid 70.
In one aspect of the invention as shown in
During manufacture, the reinforced portion 60 may be stamped into the package 5 through the use of a roller or block stamping profile as best shown in the cross-section of
In another aspect of the invention, the container 5 may be opened in a controlled fashion. As shown in
Still referring to
In another embodiment as shown in
In still another embodiment as shown in
In one illustrative embodiment, the reservoir 40 may be manufactured with an initial negative internal pressure that is less than atmospheric pressure. Once the reservoir 40 is opened, the negative internal pressure may cause the liquid 70 to flow away from the opening to prevent the liquid 70 from escaping the reservoir 40. In another illustrative embodiment, the reservoir 40 may contain an air pocket in the neck portion 50 to prevent liquid 70 from being in the neck portion 50 before opening and prevent it from spilling during the opening process. In another aspect of the invention, the package 5 may be configured to “aspirate,” or cause an internal suction to maintain the liquid 70 within reservoir 40 after opening or until pressure is applied by a user to the reservoir 40.
In still another aspect of the invention, the package as shown in
In another example, as shown in
In yet another example, as shown in
In still another example, as shown in
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims. Thus, it should be understood that the invention is not limited to the illustrative examples in this specification. Rather, the invention is intended to cover all modifications and variations that come within the scope of the following claims and their equivalents.
Claims
1. A pliable package for storing liquids therein, comprising:
- a plurality of flexible, liquid-impermeable superposed sheets being joined together by a liquid-tight seal along their respective peripheral edges;
- a liquid reservoir enclosed between the superposed sheets, including a funnel-shaped outlet passageway and a liquid discharge opening at a location along the liquid-tight seal; and
- a reinforced closure located along the liquid-tight seal, configured to block the liquid discharge opening;
- wherein the funnel-shaped outlet passageway extends across the liquid discharge opening from the flexible reservoir to the reinforced closure.
2. The pliable package of claim 1, wherein the funnel-shaped outlet passageway comprises a tapered portion and an elongate throat portion having opposing ends; and
- wherein the tapered portion extends from the liquid reservoir to one end of the elongate throat portion, and the elongate throat portion extends from its other end to the reinforced closure.
3. The pliable package of claim 1, wherein the reinforced closure and the liquid reservoir each comprise a plurality of gripping ribs.
4. The pliable package of claim 1, wherein the reinforced closure is joined to the liquid reservoir along a score line at the location along the fluid-tight seal.
5. The pliable package of claim 4, further comprising:
- a reinforcing member formed in the reinforced closure and the liquid reservoir across the score line at the location along the fluid-tight seal.
6. The pliable package of claim 5, wherein the reinforcing member is substantially U-shaped, C-shaped, O-shaped, or X-shaped.
7. The pliable package of claim 5, wherein the reinforced closure is configured to unblock the liquid discharge opening upon being rotated about the score line.
8. A pliable package for storing liquids therein, comprising:
- a plurality of flexible, liquid-impermeable superposed sheets being joined together by a liquid-tight seal along their respective peripheral edges;
- a liquid reservoir enclosed between the superposed sheets, including a funnel-shaped outlet passageway and a liquid discharge-opening at a location along the liquid-tight seal; and
- a reinforced closure located along the liquid-tight seal and configured to block the liquid discharge opening;
- wherein the funnel-shaped outlet passageway is configured to allow the formation of a meniscus upon unblocking the liquid discharge opening in order to prevent liquids from exiting the pliable package.
9. The pliable package of claim 8, wherein the funnel-shaped outlet passageway comprises a tapered portion and an elongate throat portion having opposing ends;
- wherein the tapered portion extends from the liquid reservoir to one end of the elongate throat portion, and the elongate throat portion extends from its other end to the reinforced closure; and
- wherein the tapered portion is configured to drain liquids from the elongate throat portion toward the liquid reservoir.
10. The pliable package of claim 8, wherein the reinforced closure and the liquid reservoir each comprise a plurality of gripping ribs.
11. The pliable package of claim 8, wherein the reinforced closure is joined to the liquid reservoir along a score line at the location along the fluid-tight seal.
12. The pliable package of claim 11, further comprising:
- a reinforcing member formed in the reinforced closure and the liquid reservoir across the score line at the location along the fluid-tight seal.
13. The pliable package of claim 12, wherein the reinforcing member is substantially U-shaped, C-shaped, O-shaped or X-shaped.
14. The pliable package of claim 12, wherein the reinforced closure is configured to unblock the liquid discharge opening upon being rotated about the score line.
15. A method of storing liquids inside a pliable package, comprising:
- providing a plurality of flexible, liquid-impermeable superposed sheets;
- joining the superposed sheets by a liquid-tight seal along their respective peripheral edges;
- providing a liquid reservoir between the superposed sheets, the liquid reservoir including a funnel-shaped outlet passageway and a liquid discharge opening at a location along the liquid-tight seal; and
- providing a reinforced closure located along the liquid-tight seal for blocking the liquid discharge opening;
- wherein the pliable package prevents spillage and kickback of the liquids during unblocking of the liquid discharge opening.
16. The method of claim 15, further comprising:
- configuring the funnel-shaped outlet passageway to drain liquids, therein, back into the liquid reservoir upon holding the pliable package upright for several seconds.
17. The method of claim 16, further comprising:
- joining the reinforced closure to the liquid reservoir along a score line at the location along the fluid-tight seal and configuring the reinforced closure to unblock the liquid discharge opening upon being rotated about the score line.
18. The method of claim 17, further comprising:
- forming a reinforcing member in the reinforced closure and the liquid reservoir across the score line at the location along the fluid-tight seal, for preventing accidental unblocking of the liquid discharge opening.
19. The method of claim 18, further comprising:
- configuring the liquid discharge opening to allow the formation of a meniscus upon unblocking the liquid discharge opening in order to prevent accidental discharge of liquids from the pliable package.
20. The method of claim 19, further comprising:
- configuring the superposed sheets to collapse and discharge liquids in the liquid reservoir through the liquid discharge opening upon a user's rotation of the reinforced closure about the score line, and inward compression of the liquid reservoir.
Type: Application
Filed: Mar 29, 2007
Publication Date: Oct 4, 2007
Applicant:
Inventor: Giovanni Mazzarino (Catania)
Application Number: 11/727,982
International Classification: B65D 35/00 (20060101); B65D 47/10 (20060101);