Patent Application
20220274743
Embodiments of the present invention generally relate to food and beverage packaging utilizing heat seal technology, and more specifically to domed metal food and beverage containers with end closures having seals or liners and snap-fit closure mechanisms.
Containers, and more specifically food and beverage containers, are generally plastic, metal, or paper with an internal liner and food containers can also be cardboard. The plastic containers are difficult to recycle and, thus, lead to a lot of landfill waste. Cardboard containers can be weak and breakable food, e.g., chips or crisps, can be crushed or damaged in weak cardboard containers. Alternatively, cardboard containers are made with thick sidewalls and/or may have a foil lining and metal bottom portion. Paper containers are similar in that they are often thick and have an interior lining, which may be wax, plastic, or another material. The thick cardboard and foil attached thereto and lined paper containers can be difficult to recycle and can lead to a lot of landfill waste. Containers with thick cardboard and foil sides interconnected to a metal bottom are expensive and time consuming to manufacture because they involve many steps and different materials. These cardboard and metal containers and are also susceptible to water damage and failure. For example, food and beverage containers should be impermeable to prevent spoilage due to moisture and other contaminants. Cardboard and paper are not impermeable and, thus, a metal, wax, plastic or other lining must be used. However, if the lining is not properly sealed to the bottom and lid/closure, then leakage can occur, permitting moisture and other contaminants into the container.
Often times chips are sold in bags, but the chips can be crushed or damaged in bags. Additionally, the bags are over pressurized and underfilled in order to protect the chips from breaking. Additionally, bags are difficult to recycle and lead to landfill waste. Stackable chips are often sold in cylindrical containers that suffer from many of the disadvantages described above, in addition to flat bottoms that create pressure points for curved chips and increase chip breakage. Further, bags and soft cylindrical containers can make shipping more difficult if the contents are fragile, such as is the case with chips.
Metal beverage containers offer distributors and consumers many benefits. The metallic body of a beverage container provides optimal protection properties for products. For example, the metal body prevents CO2 migration and transmission of UV radiation which may damage beverages, negatively influencing the flavor, appearance, or color of the product. Metal beverage containers also offer an impermeable barrier to light, water vapor, oils and fats, oxygen, and micro-organisms and keep the contents of the container fresh and protected from external influences, thereby guaranteeing a long shelf-life. The surfaces of metal containers are also ideal for decorating with brand names, logos, designs, product information, and/or other preferred indicia for identifying, marketing, and distinguishing the metallic container and its contents from other products and competitors. Thus, metal containers offer bottlers, distributors, and retailers an ability to stand out at the point of sale.
Beverage containers are generally formed of two separate pieces, a container body and a container end closure. The container body is formed from a single piece of metal and includes a bottom dome portion, a sidewall portion, and a neck portion with a decreased diameter extending upwardly from the sidewall portion. The neck portion is adapted to receive an end closure after the container body is filled with a beverage. An example of a known process of forming a container body is generally illustrated and described in “Inside a Ball Beverage Can Plant,” available at: https://www.ball.com/getmedia/4db64513-133d-4fa8-9de0-89fd7c2724f9/How_a_Ball_Metal_Beverage_Can_Is_Made.pdf (last visited Mar. 28, 2017) which is incorporated herein by reference in its entirety. Metal beverage containers are typically cylindrical, although other shapes are known.
An important consideration in designing and fabricating such beverage containers involves providing a desirable balance between minimizing material requirements (such as providing relatively thin-gauge metal) while achieving a beverage container that will maintain its integrity and/or form, despite shipping and handling impacts or forces and impacts arising from dropped beverage containers and shipping mishaps. Moreover, it is critical to provide beverage containers which maintain integrity and/or form even when the contents are under pressure due to carbonated or otherwise gas-pressurized contents and/or arising from high internal temperatures, including, in some cases, pasteurization temperatures.
Additionally, metal food containers and especially metal beverage containers are often not re-closable. Meaning that after the consumer opens the metal food or beverage container, the container often cannot be reclosed to prevent spillage or leakage. Specifically, pressurized metal containers are often not reclosable, e.g., a typical soda or beer can.
These and other needs are addressed by the various embodiments and configurations of the present invention. This invention relates to a novel system, device, and methods for providing a metal food or beverage packaging utilizing heat seal technology that is re-closable and recyclable. The packaging can include a container and closure. In some embodiments, the food or beverage container and end closure are comprised of aluminum. In some embodiments, the food or beverage container is comprised of a metal material and the closure is comprised of a non-metal material. In additional embodiments, the aluminum container and/or closure also include a layer of heat seal material joined to the aluminum container and/or end closure. Note that the terms “lid,” “closure,” and “end closure” can be used interchangeably herein.
It is one aspect of various embodiments of the present invention to provide sealed food or beverage packaging that can be reclosed. In some embodiments, the connection point between the container and end closure of the packaging provides a package capable of being opened and closed, but not resealed. Thus, the closure can be reapplied to the container after opening. If the consumer wants to protect the product, save the contents for future consumption, or has a fidget factor, then the consumer can reconnect or rejoin the closure to the container to provide a splash or spill proof package.
Another aspect of various embodiments of the present invention is to provide a recyclable food or beverage package. Combining the container and closure after use can be a benefit for the recycling process because then the two parts (container and closure) are both recycled and are recycled together. A typical heat seal package uses two disposal points, for example, recycling for the container and landfill for the closure.
Another aspect of various embodiments of the present invention is to provide sealed food or beverage packaging that utilizes both heat seal technology and a typical aluminum end closure or an end closure with securing lugs. In some embodiments, the sealed packaging can retain a variety of internal pressures including pressures higher than possible with the heat seal alone. One advantage of the combined closure technology (heat seal and snap-on aluminum end closure with or without securing lugs) is that it allows the packaging to hold higher pressures compared to industry standard. In some embodiments, the end closure is manufactured using an aluminum shell along with a heat seal material that when joined together provide a superior experience and superior packaging capable of holding higher pressures.
In various embodiments, the container finish, i.e., the upper end opposite a closed bottom, is curled and connects easily with the end closure. The curled finish on the container will provide an enhanced customer experience once the package is open and the container finish is exposed. This container curl can be called a peripheral curl. The end closure can also have a curl that connects to the container finish. The closure curl can also be called a peripheral curl. In some embodiments, the end closure also has securing lugs to connect the end closure to the container finish. One purpose of the connection point using the container finish and closure design is to provide a packaging capable of holding a variety of pressures based on the product type, i.e., the packaging contents.
In some embodiments, the packaging includes a hinge or pry feature for easily releasing the closure from the container. Alternatively or additionally, the packaging closure includes securing lugs and/or prying lugs for easily releasing the closure from the container and reclosing the closure on to the container. In various embodiments, the closure is securely interconnected to the container via friction fit sidewalls or curls, i.e., the interaction between the closure sidewall/curl and the container sidewall/curl or using securing lugs or other dimple features. The securing lugs can be formed in the closure perimeter curl and snap outward to receive the container's curl and then snap back into place around the container's curl. The dimple features would function similarly and be positioned on a portion of the closure positioned below the container curl when the container and closure are interconnected. The dimple feature may be embossed, pressed, or otherwise formed in the closure.
In some embodiments, the container can be filled and the heat seal secured to the upper portion of the container and then the lid is attached to the upper portion of the container. In other embodiments, the heat seal is secured to the lid and then the lid is attached to the upper portion of the container.
In some embodiments, the liner or seal (which can be a pliable liner and/or pull ring) is comprised of PVC, polyester, acrylic, epoxy, LDPE, surlyn, wax, paper, and/or other plastic. In various embodiments, the seal or liner and/or pull ring are comprised of an aluminum material or other metal base material with a PVC, polyester, acrylic, epoxy, LDPE, surlyn, wax, paper, and/or other plastic film or coating. In some embodiments, the liner and/or pull ring are comprised solely of an aluminum alloy or other metal material.
To facilitate opening, the consumer pulls on the pull ring to remove the closure from the container such that the contents of the container can be accessed. In some embodiments, a pull ring makes it easier for the consumer to open the packaging. In some embodiments, after the consumer pulls on the pull ring and pulls the closure off of the container, the liner or seal remains attached to the closure. When the consumer wants to close the container, the consumer can push the closure onto the container finish and the seal will remain between the closure and container. Here, the closure with the liner can be recycled together if they are both comprised of the same or a similar material. If the liner is a different material than the closure or the liner has a coating that prevents recycling of the liner, then the closure and liner would have to be disposed into the trash and would be landfill bound. Thus, depending on the material of the liner, the liner and closure may be able to be recycled together.
In other embodiments, after the consumer pulls on the pull ring and pulls the closure off of the container, the consumer can also pull the liner or seal off of the closure. Therefore, when the consumer wants to close the container, the consumer can push the closure onto the container finish and the closure will snap directly onto the container. In this scenario, the container can be recycled, the closure can be recycled, and the liner can be recycled, depending on the material of the liner. For example, if all three are metallic materials, then they can be disposed of in the recycling and sorted at a recycling sorting facility. Also, if the liner is plastic, but is a recyclable plastic, then all three pieces (liner, closure, container) can be disposed of in a recycling bin and a recycling sorting facility can sort the materials to properly recycle each piece. Similarly, if the liner is attached directly to the container, then the user takes the closure off of the container and then pull the liner off of the container separately. Again, all three pieces may be recyclable or the liner may be trash depending on its material.
Embodiments of the present invention include a tamper resistant and/or tamper indicator feature. For example, when the consumer opens the container, he/she will be able to tell if the container is pressurized or if the container has been opened and not resealed such that it is no longer pressurized. In some embodiments, the lid further includes a tamper indicator, such as a button that will pop up or pop down (depending on whether the container is under vacuum or pressurized) after the container has been opened and the vacuum or pressure seal is broken.
Some embodiments of the present invention include a well similar to the nitrogen well described in U.S. patent application Ser. No. 16/942,574 filed on Jul. 29, 2020 and published as U.S. Patent Publication No. 2021/0031973, which is incorporated by reference herein. The nitrogen well is used to hold liquid nitrogen introduced into the well prior to sealing container. The well can surround a domed portion designed to increase the internal pressure the container can withstand or to hold a specific chip or other food shape. Alternatively, the bottom of the container has an annular support member that will contact a supporting surface to maintain the beverage container in a vertical position during stacking, consumer use, and the like, and that connects to the domed portion. The annular support member surrounds the domed portion designed to increase the pressure the container can withstand or to hold a specific chip or food shape. The bottom portion of the food or beverage container is generally formed to define a recessed or concave dome surface to resist deformation due to internal fluid pressures. The pressure at which the recessed surface is deformed or reversed is often called the “static dome reversal pressure” of the food or beverage container. The annular support member generally contains outer and inner surfaces that join the outer wall to the annular support member and that join the annular support member to the domed surface, respectively. These outer and inner surfaces have profiles which are shaped during the manufacture of the container to provide an outside dome profile and an inside dome profile. The configuration of the bottom portion of the food or beverage container is important for a variety of reasons. The outside dome profile is often configured for purposes of stacking food or beverage containers. The outside and inside dome profiles are also important in facilitating material usage reductions, since various geometric configurations can be utilized to enhance strength characteristics. For example, the bottom portion may be configured to enhance the static dome reversal pressure characteristics and to reduce the risk of damage caused when a filled food or beverage container is dropped onto a hard surface during shipping, storage, and use. This drop resistance may be described as the cumulative drop height at which the bottom portion is damaged sufficiently to preclude the food or beverage container from standing upright on a flat surface.
In one embodiment, a metallic container and reclosable lid is provided comprising: the metallic container comprising: a sidewall have an upper end and a lower end; a closed bottom end extending from the lower end of the sidewall; an open upper end opposite the closed bottom end; and a curl around a perimeter of the upper end; the metallic reclosable lid comprising: a substantially flat central panel with an upper surface and a bottom surface; a substantially vertical portion extending downwardly from a perimeter of the central panel; a curl extending outwardly from a lower end of the substantially vertical portion and extending around a circumference of the metallic reclosable lid; and a liner operably interconnected to the bottom surface of the substantially flat central panel, the liner having a securing bead and a pull ring, and wherein the securing bead engages the container curl to secure the metallic reclosable lid to the metallic container.
In some embodiments, the liner is pliable, the securing bead is pliable, and the pull ring is pliable. In some embodiments, the metallic container further comprises a domed portion in the closed bottom end. In some embodiments, the metallic container further comprises a well extending downwardly from the lower end of the sidewall, the well having an interior wall interconnected on an upper end to a perimeter of the domed portion.
In one embodiment, a food or beverage packaging is provided comprising: a container comprising: a sidewall have an upper end and a lower end; a closed bottom end interconnected to the lower end of the sidewall; an open upper end opposite the closed bottom; and a curl around a perimeter of the upper end; a closure comprising: a substantially flat central panel with an upper surface and a bottom surface; a substantially vertical portion extending downwardly from a perimeter of the central panel; a curl extending inwardly from a lower end of the substantially vertical portion; a pry lug formed in a portion of the closure curl and extending around a portion of a circumference of the closure, the pry lug extending outwardly a distance from the substantially vertical portion of the closure, wherein the outwardly extending portion terminates in a curved portion interconnected to an inwardly oriented portion forming a loop; a securing lug formed in a portion of the closure curl and extending around a portion of the circumference of the closure, the secure lug extending inwardly from the substantially vertical portion of the closure and forming a loop, wherein the loop of the securing lug engages the container curl; and a liner attached to the bottom surface of the substantially flat central panel.
In some embodiments, the liner is a foil liner. In some embodiments, the container further comprises a domed portion in the closed bottom end. In some embodiments, the container further comprises a well extending downwardly from the lower end of the sidewall, the well having an interior wall interconnected on an upper end to a perimeter of the domed portion.
In one embodiment, a metallic reclosable lid is provided comprising: a substantially flat central panel with an upper surface and a bottom surface; a substantially vertical portion extending downwardly from a perimeter of the central panel; a curl extending outwardly from a lower end of the substantially vertical portion and extending around a circumference of the metallic reclosable lid; and a liner attached to the bottom surface of the substantially flat central panel, the liner having a securing bead and a pull ring, and wherein the securing bead engages a peripheral curl of a container to secure the metallic reclosable lid to the container.
In one embodiment, a metallic container closure is provided comprising: a substantially flat central panel with an upper surface and a bottom surface; a substantially vertical portion extending downwardly from a perimeter of the central panel; a curl extending inwardly from a lower end of the substantially vertical portion; a pry lug formed in a portion of the closure curl and extending around a portion of a circumference of the metallic container closure, the pry lug extending outwardly a distance from the substantially vertical portion of the metallic container closure, wherein the outwardly extending portion terminates in a curved portion interconnected to an inwardly oriented portion forming a loop; a securing lug formed in a portion of the closure curl and extending around a portion of the circumference of the metallic container closure, the secure lug extending inwardly from the substantially vertical portion of the metallic container closure and forming a loop, wherein the loop of the securing lug engages a peripheral curl of a container; and a liner attached to the bottom surface of the substantially flat central panel.
In one embodiment, a metallic container and reclosable lid is provided comprising: the metallic container comprising: a sidewall have an upper end and a lower end; a closed bottom end extending from the lower end of the sidewall; an open upper end opposite the closed bottom end; and a curl around a perimeter of the upper end; the metallic reclosable lid comprising: a substantially flat central panel with an upper surface and a bottom surface; a substantially vertical portion extending downwardly from a perimeter of the central panel; a curl extending outwardly from a lower end of the substantially vertical portion and extending around a circumference of the metallic reclosable lid; and a liner operably interconnected to the bottom surface of the substantially flat central panel, the liner having a securing bead, and wherein the securing bead engages the container curl to secure the metallic reclosable lid to the metallic container.
In additional embodiments, the liner has a pull ring that extends from a portion of a perimeter of the liner and extends out beyond a perimeter of the closure., and/or the liner is pliable, the securing bead is pliable, and the pull ring is pliable. In some embodiments, the liner is pliable and the securing bead is pliable. In various embodiments, the metallic container further comprises a domed portion in the closed bottom end, and/or the metallic container further comprises a well extending downwardly from the lower end of the sidewall, the well having an interior wall interconnected on an upper end to a perimeter of the domed portion. In various embodiments, the metallic reclosable lid has a thickness that is larger than a thickness of the liner.
In one embodiment, a food or beverage packaging is provided comprising:a container comprising: a sidewall have an upper end and a lower end; a closed bottom end interconnected to the lower end of the sidewall; an open upper end opposite the closed bottom; and a curl around a perimeter of the upper end; a closure comprising: a substantially flat central panel with an upper surface and a bottom surface; a substantially vertical portion extending downwardly from a perimeter of the central panel; a curl extending inwardly from a lower end of the substantially vertical portion; and a securing lug formed in a portion of the closure curl and extending around a portion of a circumference of the closure, the secure lug extending inwardly from the substantially vertical portion of the closure and forming a loop, wherein the loop of the securing lug engages the container curl.
In additional embodiments, the closure further comprises a pry lug formed in a portion of the closure curl and extending around a portion of the circumference of the closure, the pry lug extending outwardly a distance from the substantially vertical portion of the closure, wherein the outwardly extending portion terminates in a curved portion interconnected to an inwardly oriented portion forming a loop, and/or the closure further comprises a liner attached to the bottom surface of the substantially flat central panel. In various embodiments, the closure further comprises a liner attached to the bottom surface of the substantially flat central panel, and/or the liner is a foil liner. In various embodiments, the container further comprises a domed portion in the closed bottom end. In additional embodiments, the container further comprises a well extending downwardly from the lower end of the sidewall, the well having an interior wall interconnected on an upper end to a perimeter of the domed portion.
In one embodiment, a metallic reclosable lid is provided comprising: a substantially flat central panel with an upper surface and a bottom surface; a substantially vertical portion extending downwardly from a perimeter of the central panel; a curl extending outwardly from a lower end of the substantially vertical portion and extending around a circumference of the metallic reclosable lid; and a liner attached to the bottom surface of the substantially flat central panel, the liner having a securing bead around at least a portion of a perimeter of the liner and a pull ring extending outwardly beyond a perimeter of the curl, and wherein the securing bead engages a peripheral curl of a container to secure the metallic reclosable lid to the container.
In additional embodiments, the liner is pliable, the securing bead is pliable, and the pull ring is pliable.
In one embodiment, a metallic container closure is provided comprising: a substantially flat central panel with an upper surface and a bottom surface; a substantially vertical portion extending downwardly from a perimeter of the central panel; a curl extending inwardly from a lower end of the substantially vertical portion; a pry lug formed in a portion of the closure curl and extending around a portion of a circumference of the metallic container closure, the pry lug extending outwardly a distance from the substantially vertical portion of the metallic container closure, a securing lug formed in a portion of the closure curl and extending around a portion of the circumference of the metallic container closure, wherein the loop of the securing lug engages a peripheral curl of a container; and a liner attached to the bottom surface of the substantially flat central panel.
In some embodiments, the outwardly extending portion of the pry lug terminates in a curved portion interconnected to an inwardly oriented portion forming a loop. In various embodiments, the secure lug extends inwardly from the substantially vertical portion of the metallic container closure and forms a loop.
In some embodiments of the method of making the closures, the process begins with a precoated coil that is fed into a stamping press to form a blank of any various shapes and sizes. In some embodiments, a partially uncoated coil is fed into the stamping press to for a blank. The blank is subsequently formed into an intermediate aluminum form called a cup. The cup is fed into a transfer press, which performs the following steps to the cup to form a closure: curl and lug formation. Securing lugs and/or pry lugs can then be formed in the closure curl.
In some embodiments, the foil liner and closure are both manufactured in two parallel paths that eventually connect during manufacturing process to create one product: a closure with the liner attached thereto. Thus, after the closure is formed, the liner is connected to the closure, which occurs before the container is filled. Then the closures (with liners) exit the transfer press and are stacked, bagged, and palletized.
In alternative embodiments, the closures (without liners) exit the transfer press and are stacked, bagged, and palletized. At a filler station, the container is filled with the food or beverage. Then the container is sealed, i.e., the foil liner is applied to the container. Lastly, the closure is applied/connected to the foil liner and container.
In various embodiments of the method of manufacturing the closure, the process begins with a precoated that is fed into a stamping press to for a blank. In some embodiments, a partially uncoated coil is fed into the stamping press to for a blank. The blank is then drawn into a near-finished version of the final closure product with a small flange around the circumference. The flange is then curled over to hide the cut edge from the consumer and/or to form a friction fit closure mechanism. The curl also adds rigidity and creates a surface to pull against when removing the closure from a container.
In some embodiments, the foil liner and closure are both manufactured in two parallel paths that eventually connect during manufacturing process to create one product: a closure with the liner attached thereto. Thus, after the closure is formed, the liner is connected to the closure, which occurs before the container is filled. Then the closures (with liners) exit the transfer press and are stacked, bagged, and palletized.
In alternative embodiments, the closures (without liners) exit the transfer press and are stacked, bagged, and palletized. At a filler station, the container is filled with the food or beverage. Then the container is sealed, i.e., the foil liner is applied to the container. Lastly, the closure is applied/connected to the foil liner and container.
In some embodiments, the method of making the closures can occur in a single forming machine, and in other embodiments the method of making the closures can occur in a series of forming machines. Moreover, a plurality of closures can be made in each action of a machine. In another embodiment of the present invention, a closure is provided that is manufactured with conventional manufacturing equipment.
For purposes of further disclosure, the following references generally related to domed containers with closure mechanisms or lids/closures with friction fit closure and/or securing mechanisms are hereby incorporated by reference in their entireties:
U.S. patent application Ser. No. 16/942,574 filed on Jul. 29, 2020 and published as U.S. Patent Publication No. 2021/0031973;
U.S. patent application Ser. No. 15/625,518 filed on Jun. 16, 2017 and published as U.S. Publication No. 2017/0361971; and
U.S. patent application Ser. No. 17/376,010 filed on Jul. 14, 2021 and published as U.S. Publication No. 2022/0016691.
One method of improving the strength characteristics of beverage containers is known as “reforming.” During reforming, the inside dome profile of the bottom portion of a beverage container is formed to create a geometric configuration with improved strength characteristics. Reforming results in increased buckle and drop strength for beverage containers. Methods and apparatus, known as “reformers,” used in reforming the inside dome profile of beverage containers are disclosed in U.S. Pat. Nos. 5,105,973, 5,222,385, 5,355,709, 5,524,468, 5,540,352, 5,697,242, 5,704,241, 5,706,686, 5,934,127, 6,616,393, 6,837,089, and 6,959,577 which are each incorporated herein in their entirety.
The phrases “at least one,” “one or more,” and “and/or,” as used herein, are open-ended expressions that are both conjunctive and disjunctive in operation. For example, each of the expressions “at least one of A, B and C,” “at least one of A, B, or C,” “one or more of A, B, and C,” “one or more of A, B, or C,” and “A, B, and/or C” means A alone, B alone, C alone, A and B together, A and C together, B and C together, or A, B, and C together.
Unless otherwise indicated, all numbers expressing quantities, dimensions, conditions, and so forth used in the specification and claims are to be understood as being modified in all instances by the term “about”.
The term “a” or “an” entity, as used herein, refers to one or more of that entity. As such, the terms “a” (or “an”), “one or more,” and “at least one” can be used interchangeably herein.
The use of “including,” “comprising,” or “having” and variations thereof herein is meant to encompass the items listed thereafter and equivalents thereof as well as additional items. Accordingly, the terms “including,” “comprising,” or “having” and variations thereof can be used interchangeably herein.
It shall be understood that the term “means” as used herein shall be given its broadest possible interpretation in accordance with 35 U.S.C. § 112(f). Accordingly, a claim incorporating the term “means” shall cover all structures, materials, or acts set forth herein, and all of the equivalents thereof. Further, the structures, materials, or acts and the equivalents thereof shall include all those described in the summary of the invention, brief description of the drawings, detailed description, abstract, and claims themselves.
These and other advantages will be apparent from the disclosure of the invention(s) contained herein. The above-described embodiments, objectives, and configurations are neither complete nor exhaustive. The Summary of the Invention is neither intended nor should it be construed as being representative of the full extent and scope of the present invention. Moreover, references made herein to “the present invention” or aspects thereof should be understood to mean certain embodiments of the present invention and should not necessarily be construed as limiting all embodiments to a particular description. The present invention is set forth in various levels of detail in the Summary of the Invention as well as in the attached drawings and the Detailed Description and no limitation as to the scope of the present invention is intended by either the inclusion or non-inclusion of elements, components, etc. in this Summary of the Invention. Additional aspects of the present invention will become more readily apparent from the Detailed Description, particularly when taken together with the drawings.
Any one or more aspects described herein can be combined with any other one or more aspects described herein. Any one or more features described herein can be combined with any other one or more features described herein. Any one or more embodiments described herein can be combined with any other one or more embodiments described herein. Additionally, any feature described herein can be claimed in combination with any other feature(s) as described herein, regardless of whether the features come from the same described embodiment.
Those of skill in the art will recognize that the following description is merely illustrative of the principles of the invention, which may be applied in various ways to provide many different alternative embodiments. This description is made for illustrating the general principles of the teachings of this invention and is not meant to limit the inventive concepts disclosed herein.
The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the invention and together with the general description of the invention given above and the detailed description of the drawings given below, serve to explain the principles of the invention.
To assist in the understanding of the embodiments of the present invention, the following list of components and associated numbering found in the drawings is provided herein:
It should be understood that the drawings are not necessarily to scale, and various dimensions may be altered. In certain instances, details that are not necessary for an understanding of the invention or that render other details difficult to perceive may have been omitted. It should be understood, of course, that the invention is not necessarily limited to the particular embodiments illustrated herein.
Those of skill in the art will recognize that the following description is merely illustrative of the principles of the invention, which may be applied in various ways to provide many different alternative embodiments. This description is made for illustrating the general principles of the teachings of this invention and is not meant to limit the inventive concepts disclosed herein.
Although the following text sets forth a detailed description of numerous different embodiments, it should be understood that the legal scope of the description is defined by the words of the claims set forth at the end of this disclosure. The detailed description is to be construed as exemplary only and does not describe every possible embodiment since describing every possible embodiment would be impractical, if not impossible. Numerous alternative embodiments could be implemented, using either current technology or technology developed after the filing date of this patent, which would still fall within the scope of the claims.
To facilitate opening, the consumer pulls on the pull ring 4 to remove the closure 2 from the container 50 such that the contents of the container can be accessed. The pull ring 4 makes it easier for the consumer to open the packaging. In some embodiments, after the consumer pulls on the pull ring 4 and pulls the closure 2 off of the container 50, the liner or seal 10 remains attached to the closure 2. When the consumer wants to close the container 50, the consumer can push the closure 2 onto the container finish (i.e., upper portion of the container, not visible in
In other embodiments, after the consumer pulls on the pull ring 4 and pulls the closure 2 off of the container, the consumer can also pull the liner or seal 10 off of the closure 2. Therefore, when the consumer wants to close the container 50, the consumer can push the closure 2 onto the container finish (i.e., upper portion of the container, not visible in
The packaging is reclosable/closable, but not re-sealable, meaning the container 50 can be closed to prevent spillage, but the consumer cannot reseal the packaging. The terms “liner” and “seal” (nouns) can be used interchangeably herein. Reclosable and closable mean that the user can secure the lid onto the container to prevent liquid or food from spilling out. In some embodiments, the packaging can be reclosed such that it is liquid-tight, meaning drops of liquid will not leak out if properly closed. However, the packaging is not re-sealable, meaning that the pressure or vacuum seal cannot be reinstituted by the user after they open the packaging. Thus, the packaging is not gas-tight after it has been opened.
In various embodiments, the closure 2 is securely interconnected to the container 50 via friction fit sidewalls or curls, i.e., the interaction between the closure sidewall or curl and the container sidewall or curl.
In some embodiments, a molded liner/seal (with a specific shape) is used instead of a flat liner. The specific shape or mold of the liner/seal can be dimensioned in such a way to support and assist the connection between container and closure, and additionally it can help with the seal to achieve higher pressures in the container 50.
The contents 56 of the container can be filled past the body 52 and into the neck portion 54 of the container 50. The space above the container contents 56 is called the headspace 58 and has a freeboard height FB. The freeboard height FH can be between about 0.15 inches and 1.0 inch in some embodiments, between about 0.35 inches and about 0.55 inches in a preferred embodiment, or about 0.45 inches in a more preferred embodiment. In some embodiments, the freeboard height FH of the packaging is about 0.15 inches, 0.25 inches, 0.35 inches, 0.45 inches, 0.55 inches, 0.65 inches, 0.75 inches, 0.85 inches, 0.95 inches, or 1.0 inches, or any range there between.
In some embodiments, the bottom 68 of the container 50 includes a well 62, similar to the nitrogen well described in U.S. patent application Ser. No. 16/942,574 and published as U.S. Patent Publication No. 2021/0031973, which is incorporated herein by reference. Alternatively, the bottom 68 of the container 50 has an annular support member 62, which will contact a supporting surface to maintain the food or beverage container 50 in a vertical position during stacking, consumer use, and the like. The bottom portion 68 of the food or beverage container 50 is generally formed to define a recessed or concave dome surface 60 to resist deformation due to internal fluid pressures. The annular support member 62 generally contains outer and inner surfaces that join the outer wall to the annular support member 62 and that join the annular support member 62 to the domed surface 60, respectively. The container dome 60 can be shaped to hold chips, such as the dome described in U.S. patent application Ser. No. 16/942,574 and published as U.S. Patent Publication No. 2021/0031973, which is incorporated herein by reference, or the container dome 60 can be designed to resist deformation due to internal fluid pressures. The container body 52 has an outer diameter OD, and the annular support member 62 has an inner diameter ID measured from the center of the curved portion or curl. The outer diameter OD can be between about 1.5 inches and 3.0 inches in some embodiments, between about 2.0 inches and about 2.5 inches in a preferred embodiment, or about 2.259 inches in a more preferred embodiment. In some embodiments, the outer diameter OD is about 1.5 inches, 1.75 inches, 2.0 inches, 2.25 inches, 2.259 inches, 2.5 inches, 2.75 inches, or 3.0 inches, or any range there between. The inner diameter ID can be between about 1.0 inches and 2.5 inches in some embodiments, between about 1.5 inches and about 2.0 inches in a preferred embodiment, or about 1.789 inches in a more preferred embodiment. In some embodiments, the inner diameter ID is about 1.0 inches, 1.25 inches, 1.5 inches, 1.75 inches, 1.789 inches, 2.0 inches, 2.25 inches, or 2.5 inches, or any range there between. In some embodiments, a three-point bore micrometer is used.
The closure 2 is positioned on the container 50 and the closure 2 has a closure curl 6 with a radius of curvature R1. The closure curl 6 radius of curvature R1 can be between about 0.015 inches and 0.055 inches in some embodiments, between about 0.025 inches and about 0.045 inches in a preferred embodiment, or about 0.035 inches in a more preferred embodiment. In some embodiments, the closure curl 6 radius of curvature R1 is about 0.015 inches, 0.02 inches, 0.025 inches, 0.03 inches, 0.035 inches, 0.04 inches, 0.045 inches, 0.05 inches, or 0.055 inches, or any range there between.
The packaging includes a liner 10, which is pliable in some embodiments, a foil seal 10 in other embodiments, and/or a heat seal 10 in still other embodiments, positioned between the closure 2 and the container 50. The liner/seal 10 extends along the underside of the closure 2 and down the vertical portion of the closure 2 such that it extends around the container curl 64. The liner/seal 10 can extend inward past the outer perimeter of the container curl 64 a distance W in order to securely hold the closure 2 on the container 50. The distance W can be between about 0.005 inches and 0.035 inches in some embodiments, between about 0.01 inches and about 0.02 inches in a preferred embodiment, or about 0.015 inches in a more preferred embodiment. In some embodiments, the distance W is about 0.005 inches, 0.01 inches, 0.015 inches, 0.02 inches, 0.025 inches, 0.03 inches, or 0.035 inches, or any range there between.
In some embodiments, the liner 10 includes a bead 12 along at least a portion of the perimeter of the liner 10. In some embodiments, the bead 12 extends around the entire perimeter of the liner 10. In other embodiments the bead 12 only extends around a portion of the perimeter of the liner 10. The bead 12 that helps secure the closure 2 to the container 50 because the bead 12 is the portion of the liner 10 that extends inwardly past the outer perimeter of the container curl 64 a distance W. The distance W can be between about 0.005 inches and 0.035 inches in some embodiments, between about 0.01 inches and about 0.02 inches in a preferred embodiment, or about 0.015 inches in a more preferred embodiment. In some embodiments, the distance W is about 0.005 inches, 0.01 inches, 0.015 inches, 0.02 inches, 0.025 inches, 0.03 inches, or 0.035 inches, or any range there between. Thus, the bead 12 can be called a securing bead or secure bead or a pliable secure bead. The bead 12 can be pliable in some embodiments. The liner 10 provides a seal to securely seal the closure 2 onto the container 50. Use of the liner 10 permits higher internal pressures in the packaging than possible without the liner 10.
As shown in
In some embodiments, the reclosable closure 2 has a thickness that is larger than a thickness of the liner/seal 10.
The packaging is closable, but not re-sealable, meaning the container 50 can be closed to prevent spillage, but the consumer cannot reseal the packaging. The seal or liner can be similar to the seal or liner 10 described in conjunction with
In various embodiments, the closure 2 is securely interconnected to the container 50 via friction fit sidewalls or curls, i.e., the interaction between the closure sidewall or curl 6 and the container sidewall or curl or using securing lugs 22 or other dimple features. The securing lugs 22 can be formed in the closure perimeter curl 6 and snap outward to receive the container's curl and then snap back into place around the container's curl. The dimple features function similarly and are positioned on a portion of the closure 2 positioned below the container curl 64 when the container 50 and closure 2 are interconnected. The dimple feature may be embossed, pressed, or formed in the closure 2.
The contents 56 of the container can be filled past the body 52 and into the neck portion 54 of the container 50. The space above the container contents 56 is called the headspace 58. In some embodiments, the bottom 68 of the container 50 includes a well 62, similar to the nitrogen well described in U.S. patent application Ser. No. 16/942,574 and published as U.S. Patent Publication No. 2021/0031973, which is incorporated by reference herein. Alternatively, the bottom 68 of the container 50 has an annular support member 62 that will contact a supporting surface to maintain the food or beverage container 50 in a vertical position during stacking, consumer use, and the like. The bottom portion 68 of the food or beverage container 50 is generally formed to define a recessed or concave dome surface 60 to resist deformation due to internal fluid pressures. The annular support member 62 generally contains outer and inner surfaces that join the outer wall to the annular support member 62 and that join the annular support member 62 to the domed surface 60, respectively. The container dome 60 can be shaped to hold chips, such as the dome described in U.S. patent application Ser. No. 16/942,574 and published as U.S. Patent Publication No. 2021/0031973, which is incorporated by reference herein, or the container dome 60 can be designed to resist deformation due to internal fluid pressures. The container body 52 has an outer diameter OD, and the annular support member 62 has an inner diameter ID measured from the center of the curved portion or curl. The outer diameter OD can be between about 1.5 inches and 3.0 inches in some embodiments, between about 2.0 inches and about 2.5 inches in a preferred embodiment, or about 2.259 inches in a more preferred embodiment. In some embodiments, the outer diameter OD is about 1.5 inches, 1.75 inches, 2.0 inches, 2.25 inches, 2.259 inches, 2.5 inches, 2.75 inches, or 3.0 inches, or any range there between. The inner diameter ID can be between about 1.0 inches and 2.5 inches in some embodiments, between about 1.5 inches and about 2.0 inches in a preferred embodiment, or about 1.789 inches in a more preferred embodiment. In some embodiments, the inner diameter ID is about 1.0 inches, 1.25 inches, 1.5 inches, 1.75 inches, 1.789 inches, 2.0 inches, 2.25 inches, or 2.5 inches, or any range there between. In some embodiments, a three-point bore micrometer is used.
A pry lug 20 is shown on one side of the top of the container 50 and a securing lug 22 is shown on the other side of the top of the container 50.
The pry lug 20 does not engage the container curl 64. The user pulls upwardly on the pry lug 20 to remove the closure 2 from the container 50. The closure 2 has a seal/liner 10 secured to the underside of the closure 2. In some embodiments, the seal/liner 10 covers the substantially flat portion of the closure 2 and does not extend down the vertical portion or curl (not shown in this figure) of the closure 2. The seal/liner 10 is positioned between the closure 2 and the top of the container curl 64 to form a tight seal. The seal/liner 10 can be formed and attached using heat seal technology. The seal or liner 10 can be pliable or a foil seal/liner 10.
However, in other embodiments the closure curl 6 can have a larger or smaller radius of curvature R1, which can be larger or smaller than the radius of curvature R2 of the container curl 64. In some embodiments, the closure curl 6 does not engage the container curl 64. Rather, it is the securing lugs 22 that engage the container curl 64. However, in other embodiments, the closure 2 is securely interconnected to the container 50 via friction fit curls, i.e., the interaction between the closure curl 6 and the container curl 64. The closure 2 has a seal/liner 10 secured to the underside of the closure 2. The seal/liner 10 is positioned between the closure 2 and the top of the container curl 64 to form a tight seal. The seal/liner 10 can extend between the closure curl and container curl 64 in some embodiments. The seal/liner 10 can be formed and attached using heat seal technology. The seal or liner 10 can be pliable or a foil seal/liner 10. In some embodiments, the seal/liner 10 covers the substantially flat portion of the underside of the closure 2 and does not extend down the vertical portion or curl 6 of the closure 2. In other embodiments, the seal or liner 10 extends downward such that it is positioned between the container curl 64 and closure curl 6.
In various embodiments, the closures and the containers are comprised of aluminum or an aluminum alloy, and preferably comprised of recyclable aluminum or a recyclable aluminum alloy. In some embodiments, the closure and container are the same material and can even be the same type of aluminum alloy. The closure and/or container can be comprised of other materials, including other metals, and remain within the scope of this disclosure.
Additionally, various features/components of one embodiment may be combined with features/components of another embodiment. For example, features/components of one figure can be combined with features/components of another figure or features/components of multiple figures. To avoid repetition, every different combination of features has not been described herein, but the different combinations are within the scope of this disclosure. Additionally, if details (including angles, dimensions, etc.) about a feature or component are described with one embodiment or one figure, then those details can apply to similar features of components in other embodiments or other figures.
While various embodiments of the present invention have been described in detail, it is apparent that modifications and alterations of those embodiments will occur to those skilled in the art. However, it is to be expressly understood that such modifications and alterations are within the scope and spirit of the present invention, as set forth in the following claims. Further, the invention(s) described herein is capable of other embodiments and of being practiced or of being carried out in various ways. It is to be understood that the phraseology and terminology used herein is for the purpose of description and should not be regarded as limiting.
Any one or more aspects described herein can be combined with any other one or more aspects described herein. Any one or more features described herein can be combined with any other one or more features described herein. Any one or more aspects or features described in connection with one embodiment can be combined with or included with any other embodiment described herein. Any one or more embodiments described herein can be combined with any other one or more embodiments described herein. Additionally, any feature described herein can be claimed in combination with any other feature(s) as described herein, regardless of whether the features come from the same described embodiment.
This application claims priority from U.S. Provisional Patent Application Ser. No. 63/155,076, filed Mar. 1, 2021, entitled “Metal Container and End Closure with Seal”; the entire disclosure of which is hereby expressly incorporated by reference in its entirety.
| Number | Date | Country | |
|---|---|---|---|
| 63155076 | Mar 2021 | US |
