Two part closure assembly and package with closure assembly

Abstract

A polymeric closure assembly includes outer and inner shells. The outer shell includes a wall portion and skirt portion. The skirt portion of the polymeric outer shell depends from the top wall portion in which the top wall portion forms at least one opening that extends therethrough. The inner shell includes a top wall portion and a skirt portion. The polymeric inner shell resides within the outer shell. At least a portion the polymeric top wall portion of the inner shell includes a first color. At least a portion the polymeric top wall portion of the outer shell includes a second color. The first and second colors are distinct and contrasting colors. The second color is visible through the at least one opening.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS

[0001] The present application claims priority to and benefit of U.S. Provisional Patent Application No. 63 / 766,173 filed on March 3, 2025, which is hereby incorporated by reference in its entirety.FIELD OF THE INVENTION

[0002] The present invention relates generally to a closure assembly and a package with a closure assembly. More specifically, the present invention relates to a polymeric closure assembly with child-resistance features.BACKGROUND OF THE INVENTION

[0003] Polymeric closures have been used in many applications over the years in conjunction with containers. One type of polymeric closure that has been used with containers is a child-resistant polymeric closure. One type of child-resistant polymeric closure that has been used is one including outer and inner shells. Some regulations require specific labeling in contrasting colors to be included on, for example, child-resistant polymeric closures. One method of labeling includes adding an inked label in a different color to the child-resistant polymeric closure during a manufacturing step(s). This manufacturing step(s) involves additional equipment and processing costs that are expensive, especially considering the number of closures being manufactured.

[0004] It would be desirable to provide a closure assembly that addresses the same, while providing other beneficial features of a closure assembly.SUMMARY

[0005] According to one aspect of the present disclosure, a polymeric closure assembly comprises a polymeric outer shell and a polymeric inner shell. The polymeric outer shell includes a polymeric top wall portion and a polymeric annular skirt portion. The polymeric annular skirt portion of the polymeric outer shell depends from the polymeric top wall portion of the polymeric outer shell. The polymeric top wall portion of the outer shell includes an exterior surface and an interior surface. The polymeric top wall portion forms at least one opening that extends therethrough. The polymeric inner shell includes a polymeric top wall portion and a polymeric annular skirt portion. The polymeric annular skirt portion of the polymeric inner shell depends from the polymeric top wall portion of the polymeric inner shell. The polymeric top wall portion of the polymeric inner shell includes an exterior surface and an interior surface. The polymeric annular skirt portion of the polymeric inner shell includes an exterior surface and an interior surface. The polymeric inner shell resides within the polymeric outer shell. At least a portion the polymeric top wall portion of the outer shell includes a first color. At least a portion the polymeric top wall portion of the inner shell includes a second color. The first and second colors are distinct and contrasting colors. The second color is visible through the at least one opening formed in the polymeric outer shell.

[0006] According to a configuration of the above implementation, the interior surface of the polymeric annular skirt portion of the polymeric inner shell includes a thread formation for mating engagement with a thread formation of a container.

[0007] According to another configuration of the above implementation, the interior surface of the polymeric top wall portion of the polymeric outer shell includes a plurality of torque-transfer ribs. The exterior surface of the polymeric top wall portion of the polymeric inner shell includes a plurality of torque-transfer extending projections. The plurality of torque-transfer ribs and the plurality of torque-transfer extending projections cooperate to form a child-resistant feature by preventing or inhibiting opening of the container by only rotational movement. Each of the plurality of torque-transfer extending projections may have a generally straight side and an opposing ramped side.

[0008] According to a further configuration of the above implementation, the interior surface of the polymeric annular skirt portion of the polymeric outer shell forms an inwardly-extending annular retention ledge. The inwardly-extending annular retention ledge assists in preventing or inhibiting the polymeric inner shell from being separating from the polymeric outer shell.

[0009] In a further aspect of the above implementation, the at least one opening of the polymeric top wall portion is a plurality of openings extending through the polymeric top wall portion. The plurality of openings forms written instructions, provide general information or warnings in one embodiment.

[0010] In yet a further aspect of the above implementation, the entire portion of the inner shell includes the first color and the entire portion of the outer shell includes the second color.

[0011] According to another aspect of the present disclosure, a package comprises a container and a polymeric closure assembly. The container has a neck portion defining an opening. The neck portion has an exterior surface and an interior surface. The container has a thread formation being located on the exterior surface of the neck portion. The polymeric closure assembly is configured for fitment to the neck portion of the container. The polymeric closure assembly includes a polymeric inner shell and a polymeric outer shell. The polymeric outer shell includes a polymeric top wall portion and a polymeric annular skirt portion. The polymeric annular skirt portion of the polymeric outer shell depends from the polymeric top wall portion of the polymeric outer shell. The polymeric top wall portion of the outer shell includes an exterior surface and an interior surface. The polymeric top wall portion forms at least one opening that extends therethrough. The polymeric inner shell includes a polymeric top wall portion and a polymeric annular skirt portion. The polymeric top wall portion of the polymeric inner shell forms an opening therein. The polymeric annular skirt portion of the polymeric inner shell depends from the polymeric top wall portion of the polymeric inner shell. The polymeric top wall portion of the polymeric inner shell includes an exterior surface and an interior surface. The polymeric annular skirt portion of the polymeric inner shell includes an exterior surface and an interior surface. The polymeric inner shell resides within the polymeric outer shell. At least a portion the polymeric top wall portion of the inner shell includes a first color. At least a portion the polymeric top wall portion of the outer shell includes a second color. The first and second colors are distinct and contrasting colors. The second color is visible through the at least one opening formed in the polymeric outer shell.

[0012] According to a configuration of the above implementation, the interior surface of the polymeric annular skirt portion of the polymeric inner shell includes a thread formation for mating engagement with a thread formation of a container.

[0013] According to another configuration of the above implementation, the interior surface of the polymeric top wall portion of the polymeric outer shell includes a plurality of torque-transfer ribs. The exterior surface of the polymeric top wall portion of the polymeric inner shell includes a plurality of torque-transfer extending projections. The plurality of torque-transfer ribs and the plurality of torque-transfer extending projections cooperate to form a child-resistant feature by preventing or inhibiting opening of the container by only rotational movement. Each of the plurality of torque-transfer extending projections may have a generally straight side and an opposing ramped side.

[0014] According to a further configuration of the above implementation, the interior surface of the polymeric annular skirt portion of the polymeric outer shell forms an inwardly-extending annular retention ledge. The inwardly-extending annular retention ledge assists in preventing or inhibiting the polymeric inner shell from being separating from the polymeric outer shell.

[0015] In a further aspect of the above implementation, the at least one opening of the polymeric top wall portion is a plurality of openings extending through the polymeric top wall portion. The plurality of openings forms written instructions, provide general information or warnings in one embodiment.

[0016] In yet a further aspect of the above implementation, the entire portion of the inner shell includes the first color and the entire portion of the outer shell includes the second color.

[0017] The above summary is not intended to represent each embodiment or every aspect of the present invention. Additional features and benefits of the present invention are apparent from the detailed description and figures set forth below.BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Other advantages of the invention will become apparent upon reading the following detailed description and upon reference to the drawings in which:

[0019] FIG. 1A is a top view of a polymeric outer shell to be used in a polymeric closure assembly according to one embodiment.

[0020] FIG. 1B is a top perspective view of the polymeric outer shell of FIG. 1A.

[0021] FIG. 1C is a bottom perspective view of the polymeric outer shell of FIG. 1A.

[0022] FIG. 1D is a bottom view of the polymeric outer shell of FIG. 1A.

[0023] FIG. 1E is a cross-sectional view taken generally along line 1E-1E in FIG. 1B.

[0024] FIG. 2A is a top view of a polymeric inner shell to be used in a polymeric closure assembly according to one embodiment.

[0025] FIG. 2B is a top perspective view of the polymeric inner shell of FIG. 2A.

[0026] FIG. 2C is a bottom perspective view of the polymeric inner shell of FIG. 2A.

[0027] FIG. 2D is a bottom view of the polymeric inner shell of FIG. 2A.

[0028] FIG. 2E is a cross-sectional view taken generally along line 2E-2E in FIG. 2B.

[0029] FIG. 3A is a top view of a polymeric closure assembly using the polymeric outer shell of FIG. 1A and the polymeric inner shell of FIG. 2A according to one embodiment.

[0030] FIG. 3B is a top perspective view of the polymeric closure assembly of FIG. 3A.

[0031] FIG. 3C is a bottom perspective view of the polymeric closure assembly of FIG. 3A.

[0032] FIG. 3D is a bottom view of the polymeric closure assembly of FIG. 3A.

[0033] FIG. 3E is a cross-sectional view taken generally along line 3E-3E in FIG. 3B.

[0034] FIG. 4A is a side view of a container according to one embodiment.

[0035] FIG. 4B is a top perspective view of the container of FIG. 4A.

[0036] FIG. 5A is a side view of a package using the container of FIG. 4A and the polymeric closure assembly of FIG. 3A.

[0037] FIG. 5B is a top perspective view of the package of FIG. 5A.

[0038] FIG. 5C is a cross-sectional view taken generally along line 5C-5C in FIG. 5B.

[0039] FIG. 6 is a top view of a polymeric outer shell to be used in a polymeric closure assembly according to another embodiment.

[0040] While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof have been shown by way of example in the drawings and will herein be described in detail. It should be understood, however, that it is not intended to limit the invention to the particular forms disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.DETAILED DESCRIPTION

[0041] Referring to FIGS. 3A-3E, a polymeric closure assembly 10 according to one embodiment is shown. The polymeric closure assembly 10 includes a polymeric outer shell 20 and a polymeric inner shell 60. The polymeric inner shell 60 resides within the polymeric outer shell 20. The polymeric outer shell 20 is shown in FIGS. 1A-1E, while the polymeric inner shell 60 is shown in FIGS. 2A-2E. The polymeric closure assembly 10 is configured to be used with a container 200, which is shown in FIGS. 4A, 4B. Specifically, the polymeric closure assembly 10 is configured for fitment to the neck portion of the container 200 for closing and opening of the container. The polymeric closure assembly 10 and the container 200 form a package 300 that is shown in FIGS. 5A-5C.

[0042] The polymeric outer shell 20 and the polymeric inner shell 60 as viewed from a top view (FIGS. 1A, 1B) is in the form of a generally circular shape. It is contemplated that the polymeric outer and inner shells may be of different shapes.

[0043] The polymeric closure assemblies of the present invention are advantageous by avoiding the expenses associated with adding an inked label to the polymeric closure assembly to achieve contrasting colors. The inked label may communicate warnings, general information or written instructions, which may be required by statute or regulations. This eliminates the need for additional equipment to place the inked label onto the polymeric closure assembly. This labeling step(s) also involves additional processing time, as well as expenses in the forming or purchasing an inked label.

[0044] Referring back to FIGS. 1A-1E, the polymeric outer shell 20 includes a polymeric top wall portion 22 and a polymeric annular skirt portion 24. The polymeric annular skirt portion 24 depends from the polymeric top wall portion 22. The polymeric top wall portion 22 has an exterior surface 22a and an interior surface 22b. The polymeric annular skirt portion 24 has an exterior surface 24a and an interior surface 24b.

[0045] The polymeric top wall portion 22 forms a plurality of at least one opening 26a-26m as best shown in FIGS. 1A, 1B, 1D. These openings 26a-26m extend fully through the polymeric top wall portion 22. The plurality of openings 26a-26m formed in the polymeric top wall portion 22 corresponds to written instructions. Specifically, in this embodiment, the openings 26a-26m form the phrase “PUSH DOWN & TURN”. The at least one opening 26a is two openings that combine together to form the letter “P”, while the at least opening 26c is one opening that forms the letter “S”. It is contemplated that the opening may communicate warnings, general information or written instructions, whether required by statue or regulation or are desirable.

[0046] As shown best in FIG. 1B, the polymeric top wall portion 22 further includes instructions that are raised in height relative to the remainder of the polymeric top wall portion 22. Specifically, the exterior surface 22a of the polymeric top wall portion 22 includes the raised terms “OPEN” and “CLOSE TIGHTLY”. It is contemplated that instead of being raised, these instructions may also be formed by openings such as in the phrase “PUSH DOWN & TURN”. The exterior surface 22a of the polymeric top wall portion 22 also includes arrows 28a, 28b and arrows 30a, 30b. Arrows 28a, 28b are shown in a counter-clockwise direction with the term “OPEN” therebetween to indicate the direction to open the closure. Arrows 30a, 30b are shown in a clockwise direction with the term “CLOSE TIGHTLY” therebetween to indicate the directions to close the closure. It is contemplated that instead of being raised, the arrows may also be formed by openings such as in the phrase “PUSH DOWN & TURN”. The arrows 28a, 28b, 30a, 30b and the written terms on the exterior surface 22a instructing a user on how to open the polymeric closure assembly.

[0047] It is contemplated that an exterior surface of the polymeric top wall portion may forms openings in the shape of symbols, pictures, icons or written language to assist a user with instructions on opening the polymeric closure assembly, provide warnings or provide desired general information or messaging. One non-limiting example of the same is shown in FIG. 6 with a polymeric outer shell 420. The polymeric outer shell 420 form a plurality of openings that function in a similar manner as the above-described openings. The plurality of openings may form the shown hand with bridges built into the drawings such that no islands are present. The plurality of openings may further include the shown arrows.

[0048] It is contemplated that other symbols, pictures or icons may be used. For example, there may be an arrow showing the downward pressure onto a depicted closure (e.g., a closure and a second arrow showing a rotating movement in the counter-clockwise or clockwise direction onto the depicted closure on the polymeric top wall portion . These arrows may be numbered 1 or 2 to show the order in which the action are performed with the number 1 being associated with the arrow showing the downward pressure and the number 2 being associated with the arrow showing the counter-clockwise or clockwise direction .

[0049] It is also contemplated that openings may be formed on the sidewall instead or in addition to the openings on the polymeric top wall portion.

[0050] Referring back to FIGS. 1C, 1D, the interior surface 22b of the polymeric top wall portion 22 includes a plurality of torque-transfer ribs 32. The plurality of torque-transfer ribs 32 extends inwardly from or near the polymeric annular skirt portion 24. As will be discussed below, each of the torque-transfer ribs 32 is configured to engage with a respective one of the torque-transfer extending projections of the polymeric inner shell 60 to prevent or inhibit opening by rotational movement only of the polymeric closure assembly 10 after being threaded on a container.

[0051] The plurality of torque-transfer ribs 32 is shown as being an elongated rectangular shape. It is contemplated that the torque-transfer ribs may be shaped or sized differently from that shown in FIG. 1C.1D . The torque-transfer ribs, however, need to assist in preventing or inhibiting opening or closing of the container by rotational movement only in conjunction with the torque-transfer projections discussed below.

[0052] The number of torque-transfer ribs formed on the polymeric top wall portion of the polymeric outer shell may vary but is generally from about 4 to about 20. The number of torque-transfer ribs formed on the polymeric top wall portion of the polymeric outer shell is typically from about 8 to about 16.

[0053] Referring back to FIGS. 1B, 1C, the exterior surface 24a of the polymeric annular skirt portion 24 includes a plurality of ridges or knurls 24c thereon. The plurality of ridges 24c assists a user in gripping the polymeric closure assembly 10 when moving between closed and open positions. It is contemplated that the ridges, if used, may be discontinuous around the periphery of the polymeric outer shell.

[0054] Referring to FIG. 1E, the interior surface 24b of the polymeric annular skirt portion 24 includes an inwardly-extending annular retention ring or ledge 42 at a bottom portion thereof. The inwardly-extending annular retention ledge 42 is located opposite from the polymeric top wall portion 22 of the polymeric outer shell 20. The inwardly-extending annular retention ring 42 assists in retaining the polymeric outer and inner shells 20, 60 together.

[0055] It is contemplated that the inwardly-extending annular retention ring may include a plurality of undercut notches (not shown) formed therein that assists in the manufacturing process. More specifically, the plurality of undercut notches, if used, would typically assist in releasing the polymeric outer shell from a mold when the polymeric outer shell is made by a molding process (e.g., injection molding).

[0056] The thickness of the polymeric annular skirt portion 24 of the polymeric outer shell 20 is generally from about 0.02 to about 0.08 inch in one embodiment. In another embodiment, the thickness of the polymeric annular skirt portion of the polymeric outer shell is from about 0.03 to about 0.07 inch. In a further embodiment, the thickness of the polymeric annular skirt portion of the polymeric outer shell is from about 0.04 to about 0.06 inch.

[0057] Referring to FIGS. 2A-2E, the polymeric inner shell 60 includes a polymeric top wall portion 62 and a polymeric annular skirt portion 64. The polymeric annular skirt portion 64 depends from the polymeric top wall portion 62. The polymeric top wall portion 62 has an exterior surface 62a and an interior surface 62b. The polymeric annular skirt portion 64 has an exterior surface 64a and an interior surface 64b.

[0058] The thickness of the polymeric annular skirt portion 64 of the polymeric inner shell 60 is generally from about 0.02 to about 0.08 inch in one embodiment. In another embodiment, the thickness of the polymeric annular skirt portion of the polymeric inner shell is from about 0.03 to about 0.07 inch. In a further embodiment, the thickness of the polymeric annular skirt portion of the polymeric inner shell is from about 0.04 to about 0.06 inch.

[0059] The polymeric top wall portion 62 of the polymeric inner shell 60 forms a plurality of torque-transfer extending projections 70 as shown in FIGS. 2A, 2B. The polymeric annular skirt portion 64 includes a thread formation 80 (FIG. 2C) wherein the thread formation 80 of the polymeric inner shell 60 is an internal thread formation for mating engagement with an external thread formation of a container. It is contemplated that internal an eternal threading may be reversed on the polymeric closure assembly and the container.

[0060] It is also contemplated that the polymeric inner shell may be formed in the absence of an internal thread formation. For example, the polymeric closure assembly including the polymeric inner and outer shells may be a snap-on closure assembly. In this embodiment, the polymeric closure is placed on a container by downward (axial) pressure in the absence of a threading motion. In such an embodiment, a user would align arrows or other feature on the closure assembly and the container that correlate with an interruption in a continuous rib. When the closure assembly and container are aligned, a user may pry open the closure assembly from the container since a rib or other feature will not prevent or inhibit the removal of the closure assembly from the container.

[0061] Referring to FIGS. 2A, 2B, the plurality of torque-transfer extending projections 70 is formed on the polymeric top wall portion 62 of the polymeric inner shell 60. The plurality of torque-transfer extending projections 70 is located near or at an outer edge 62c of the polymeric top wall portion 62.

[0062] Referring to FIGS. 2A, 2B, 2E, each of the torque-transfer extending projections 70 has a ramped side 70a and a generally straight side 70b. Referring specifically to FIG. 2B, the generally straight side 70b is perpendicular or generally perpendicular to the exterior surface 62a of the polymeric top wall portion 62. The ramped side 70a and the generally straight side 70b are located on opposing sides of the torque-transfer extending projection 70. Each of the torque-transfer extending projections 70 has a top surface 70c that bridges the ramped side 70a and the generally straight side 70b. The ramped side 70a is angled and generally has an angle A of from about 110 to about 160 degrees, and typically has an angle A from about 120 to about 150 degrees (see FIG. 2E). The generally straight side generally 70b has an angle B of from about 75 to about 105 degrees, and typically has an angle B from about 80 to about 100 degrees (see FIG. 2E).

[0063] The plurality of torque-transfer extending projections 70 of the polymeric inner shell 60 works in conjunction with the plurality of torque-transfer ribs 32 of the polymeric outer shell 20 to provide child resistance. It is noted that in the initial position of a polymeric closure assembly 10, the plurality of torque-transfer extending projections 70 of the polymeric inner shell 60 do not contact and are spaced from the plurality of torque-transfer ribs 32 of the polymeric outer shell 20.

[0064] If a user turns the polymeric closure assembly 10 in a counterclockwise direction (direction of arrows 28a, 28b in FIGS. 3A, 3B and direction of arrow A in FIG. 5B) in an attempt to open the container and access the contents, the plurality of torque-transfer ribs 32 will initially ride up the ramped side 70a of the torque-transfer extending projections 70 and along the top surface 70c and then downwardly at the generally straight side 70b. During this movement in the counterclockwise direction, the thread formation 80 of the polymeric inner shell 60 will not mate or engage with the thread formation of a container. Thus, the container 200 will not be opened and will remain in a closed position with the polymeric closure assembly 10 without sufficient top loaded force.

[0065] To open the container 200 such that the thread formation 80 of the polymeric inner shell 60 engages with a corresponding thread formation of the container, a user must press in an axial, downward direction (direction of arrow B in FIGS. 5A, 5B) on the exterior surface 22a of the polymeric top wall portion 22 of the polymeric outer shell 20 coupled with movement in a radially counterclockwise direction such that the thread formations of the polymeric inner shell and the container will engage with other, allowing the polymeric closure assembly 10 to unthread from the container 200. It is contemplated in another embodiment that the opening process may include rotating the polymeric closure assembly in the opposite direction - in a clockwise direction.

[0066] Each of the plurality of torque-transfer extending projections 70 shown in FIGS. 2A, 2B is in the shape of the letter “C”. This shape of the torque-transfer extending projections 70 is designed to reduce the material costs associated therewith, while still providing the functionality of the torque-transfer extending projections.

[0067] It is contemplated that the torque-transfer projections of the polymeric inner shell may be shaped or sized differently from that shown in FIGS. 2A, 2B. The torque-transfer projections, however, need to assist in preventing or inhibiting opening or closing of the container by rotational movement only in conjunction with the torque-transfer ribs of the polymeric outer shell.

[0068] The number of torque-transfer projections formed on the polymeric top wall portion of the polymeric inner shell may vary but is generally from about 4 to about 20. The number of torque-transfer projections formed on the polymeric top wall portion is typically from about 8 to about 16.

[0069] Referring specifically to FIG. 2C, the polymeric annular skirt portion 64 of the polymeric inner shell 60 includes an internal thread formation 80 for mating engagement with an external thread formation of the container 200. The internal thread formation 80 is located on the interior surface 64b of the polymeric annular skirt portion 64. The internal thread formation 80 is one continuous helical thread in this embodiment. It is contemplated that the internal helical thread formation may be discontinuous.

[0070] In another embodiment, the internal thread formation of a polymeric annular skirt portion of a polymeric inner shell includes a first closure lead and a second closure lead, which are referred collectively as a double lead closure thread. Each of the first and second closure leads may be continuous. The first and second helical closure leads may be helical. The first positions of the first and second closure leads are often located roughly 180 degrees apart from each other and, thus, begin on generally opposing sides of the polymeric inner shell. It is contemplated that the first and second closure leads may be discontinuous.

[0071] It is also contemplated that the internal thread formation of the polymeric inner shell may differ from a helical thread formation. It is also contemplated that other internal thread formations may be used in the polymeric inner shell. For example, the internal thread formation may include a triple-threaded structure having first, second and third closure leads.

[0072] It is contemplated that in addition to the polymeric outer and inner shells, the polymeric closure assembly may include a liner. If used, the liner is configured to attach to both the polymeric inner shell and a finish of a container. The liner may be a one-piece liner in one embodiment. In another embodiment, if used, a liner may be formed in a two-piece liner that is configured to separate into two separate pieces on opening. A liner assists in sealing the polymeric closure assembly and the container to form the package. A liner also forms a tamper-evident feature by sealing with a finish of a container. A liner may also assist to prevent or inhibit any liquid if any opening is formed in a polymeric inner shell. The liner may form an interference or press fit with an interior surface of the polymeric inner shell in one embodiment.

[0073] The polymeric closure assemblies may include an oxygen-scavenger material. This oxygen-scavenger material may be distributed within the polymeric closure assemblies may be a separate layer. The oxygen-scavenger material may be any material that assists in removing oxygen within the container, while having little or no effect on the contents within the container.

[0074] Referring to FIGS. 3A, 3B, the outer polymeric shell 20 and the inner polymeric inner shell 60 of the polymeric closure assembly 10 includes distinct and contrasting colors. In one embodiment, at least a portion of the polymeric top wall portion 22 of the outer polymeric shell 20 comprises a first color and at least a portion of the polymeric top wall portion 62 of the polymeric inner shell 60 comprises a second color. In another embodiment, the entire portion of the polymeric top wall portion 22 of the outer polymeric shell 20 comprises a first color and the entire portion of the polymeric top wall portion 62 of the polymeric inner shell 60 comprises a second color. In a further embodiment, the entire portion of the outer polymeric shell 20 comprises a first color and the entire portion of the polymeric inner shell 60 comprises a second color. In yet another embodiment, a majority of the outer polymeric shell 20 comprises a first color and a majority of the polymeric inner shell 60 comprises a second color. In yet a further embodiment, substantially all of the outer polymeric shell 20 comprises a first color and substantially all of the polymeric inner shell 60 comprises a second color.

[0075] The first and second colors of the outer polymeric shell 20 and the inner polymeric shell 60 are distinct and contrasting colors. The second color of the inner polymeric shell 60 is visible through the plurality of openings 26 formed in the polymeric outer shell 20 Thus, when the outer and inner polymeric shells 20, 60 are positioned together to form the polymeric container assembly 10, a user can visually see the second color of the inner polymeric shell 60 as shown in FIG. 3A. Specifically, for example, the second color of the top polymeric top wall portion 62a can be seen through opening 26b in FIG. 3A. Similarly, the second color of the top wall polymeric wall portion 62a can be seen though openings 26a-26m in the phrase “PUSH DOWN & TURN”.

[0076] The contrasting first and second colors may be a variety of different colors or clearly distinct color shades. For example, the colors could be green and white, blue and white, and black and white. The first and second color may be a dark forest green and a bright lime green or a dark blue and a light powder blue.

[0077] Alternatively, or in addition to, the polymeric closure assemblies may include an oxygen-barrier material. The oxygen-barrier material may be added as a separate layer or may be integrated within the closure itself. The oxygen-barrier materials assist in preventing or inhibiting oxygen from entering the container through the polymeric closure assemblies. These materials may include, but are not limited to, ethylene vinyl alcohol (EVOH). It is contemplated that other oxygen-barrier materials may be used in the polymeric closure assemblies.

[0078] As discussed above, the polymeric container assembly 10 is used with the container 200 to form the package 300. The container has a neck portion defining an opening. The neck portion has an exterior surface and an interior surface. The container has an external thread formation on the neck portion in one embodiment.

[0079] Referring to FIGS. 4A, 4B, the container 200 is shown that includes a neck portion 202 defining an opening 206. The opening 206 is located opposite of a bottom 204 of the container 200. The container 200 includes a continuous side wall 208 that extends from the bottom 204 to the neck portion 202. The neck portion 202 of the container 200 includes an external thread formation 210 and an A-collar 214 to assist in manufacturing and movement of the container.

[0080] In one embodiment, a package comprises a container and a polymeric closure assembly. The container has a neck portion defining an opening. The neck portion has an exterior surface and an interior surface. The container has an external thread formation on the neck portion. The polymeric closure assemblies are configured for fitment to the neck portion of the container for closing the opening. The polymeric closure assemblies are configured to be placed on containers or bottles that contain product. The product may be a liquid product, but also may be a solid product or a combination of a liquid and solid product.

[0081] One non-limiting example of a polymeric closure assembly and a container forming a package is shown in FIGS. 5A-5C. FIG. 5A is a side perspective view of the package 300 including the polymeric closure assembly 10 of FIGS. 3A-3E and the container 200 of FIGS. 4A, 4B. FIG. 5B is a top perspective view of the package 300 including the polymeric closure assembly 10 of FIGS. 3A-3E and the container 200 of FIGS. 4A, 4B. FIGS. 5A-5C show the package 300 in an unopened position or state.

[0082] The outer shell portion 20 and the inner shell portion 60 are made of polymeric material. The outer shell portion 20 and the inner shell portion 60 are typically made of an olefin (e.g., polyethylene (PE), polypropylene (PP)), polyethylene terephthalate (PET) or blends thereof. One example of a polyethylene that may be used is high density polyethylene (HDPE). It is contemplated that the outer shell portion and the inner shell portion may be made of other polymeric materials.

[0083] The polymeric closure assemblies are typically formed by molding processes such as injection molding. It is contemplated that other processes may be used in forming the polymeric closure assemblies of the present invention.

[0084] The container 200 is typically made of polymeric material. One non-limiting example of a material to be used in forming a polymeric container is polyethylene terephthalate (PET), polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), or blends using the same. It is contemplated that the container may be formed of other polymeric or copolymer materials. The container 200 typically has an encapsulated oxygen-barrier layer or oxygen barrier material incorporated therein.

[0085] In one method of manufacturing the package, a closure assembly and a container are initially provided. A non-limiting example of a polymeric closure assembly and the container is the polymeric closure assembly 10 and the container 200 discussed above. The polymeric closure assembly 10 is threaded onto the container 200 during manufacturing.

[0086] To open the polymeric closure assembly 10, a user rotates the polymeric outer shell 20 in a counterclockwise direction (the direction of arrow A in FIG. 5B), while simultaneously pushing down with axial force (in the direction of arrow B in FIG. 5B). This removes the polymeric closure assembly 10 from the container 200. This is the child-resistant feature to prevent or inhibit individuals from obtaining the contents located within an interior of the container 200 without both pressing with sufficient axially pressure with a rotational turn. If a liner is used, a user would need to remove the liner to gain access into the contents of the container.

[0087] To close the polymeric closure assembly 10, a user rotates the polymeric outer shell 20 in a clockwise direction (in the direction of arrow B in FIG. 5B) in this embodiment. It is contemplated that the polymeric closure assembly may be configured to be opened in a clockwise direction and closed in a counterclockwise direction.

[0088] The polymeric closure assemblies are desirable in both low-temperature and high-temperature applications. The polymeric closure assemblies may be used in low-temperature applications such as an ambient or a cold fill. These applications include water, sports drinks, aseptic applications such as dairy products, and pressurized products such as carbonated soft drinks. It is contemplated that other low-temperature applications may be used with the polymeric closures.

[0089] The polymeric closure assemblies may be exposed to high-temperature applications such as hot-fill, pasteurization, and retort applications. A hot fill application is generally performed at temperatures around 185º F, while a hot fill with pasteurization is generally performed at temperatures around 205º F. Retort applications are typically done at temperatures greater than 244º F. It is contemplated that the polymeric closure assemblies can be used in other high-temperature applications.

[0090] While the foregoing written description of the invention enables one of ordinary skill to make and use what is considered presently to be the best mode thereof, those of ordinary skill will understand and appreciate the existence of variations, combinations, and equivalents of the specific embodiment, method, and examples herein. The invention should therefore not be limited by the above described embodiment, method, and examples, but by all embodiments and methods within the scope and spirit of the invention.

Examples

Embodiment Construction

[0041]Referring to FIGS. 3A-3E, a polymeric closure assembly 10 according to one embodiment is shown. The polymeric closure assembly 10 includes a polymeric outer shell 20 and a polymeric inner shell 60. The polymeric inner shell 60 resides within the polymeric outer shell 20. The polymeric outer shell 20 is shown in FIGS. 1A-1E, while the polymeric inner shell 60 is shown in FIGS. 2A-2E. The polymeric closure assembly 10 is configured to be used with a container 200, which is shown in FIGS. 4A, 4B. Specifically, the polymeric closure assembly 10 is configured for fitment to the neck portion of the container 200 for closing and opening of the container. The polymeric closure assembly 10 and the container 200 form a package 300 that is shown in FIGS. 5A-5C.

[0042]The polymeric outer shell 20 and the polymeric inner shell 60 as viewed from a top view (FIGS. 1A, 1B) is in the form of a generally circular shape. It is contemplated that the polymeric outer and inner shells may be of diffe...

CROSS-REFERENCE TO RELATED APPLICATIONS

[0001] The present application claims priority to and benefit of U.S. Provisional Patent Application No. 63 / 766,173 filed on March 3, 2025, which is hereby incorporated by reference in its entirety.FIELD OF THE INVENTION

[0002] The present invention relates generally to a closure assembly and a package with a closure assembly. More specifically, the present invention relates to a polymeric closure assembly with child-resistance features.BACKGROUND OF THE INVENTION

[0003] Polymeric closures have been used in many applications over the years in conjunction with containers. One type of polymeric closure that has been used with containers is a child-resistant polymeric closure. One type of child-resistant polymeric closure that has been used is one including outer and inner shells. Some regulations require specific labeling in contrasting colors to be included on, for example, child-resistant polymeric closures. One method of labeling includes adding an inked label in a different color to the child-resistant polymeric closure during a manufacturing step(s). This manufacturing step(s) involves additional equipment and processing costs that are expensive, especially considering the number of closures being manufactured.

[0004] It would be desirable to provide a closure assembly that addresses the same, while providing other beneficial features of a closure assembly.SUMMARY

[0005] According to one aspect of the present disclosure, a polymeric closure assembly comprises a polymeric outer shell and a polymeric inner shell. The polymeric outer shell includes a polymeric top wall portion and a polymeric annular skirt portion. The polymeric annular skirt portion of the polymeric outer shell depends from the polymeric top wall portion of the polymeric outer shell. The polymeric top wall portion of the outer shell includes an exterior surface and an interior surface. The polymeric top wall portion forms at least one opening that extends therethrough. The polymeric inner shell includes a polymeric top wall portion and a polymeric annular skirt portion. The polymeric annular skirt portion of the polymeric inner shell depends from the polymeric top wall portion of the polymeric inner shell. The polymeric top wall portion of the polymeric inner shell includes an exterior surface and an interior surface. The polymeric annular skirt portion of the polymeric inner shell includes an exterior surface and an interior surface. The polymeric inner shell resides within the polymeric outer shell. At least a portion the polymeric top wall portion of the outer shell includes a first color. At least a portion the polymeric top wall portion of the inner shell includes a second color. The first and second colors are distinct and contrasting colors. The second color is visible through the at least one opening formed in the polymeric outer shell.

[0006] According to a configuration of the above implementation, the interior surface of the polymeric annular skirt portion of the polymeric inner shell includes a thread formation for mating engagement with a thread formation of a container.

[0007] According to another configuration of the above implementation, the interior surface of the polymeric top wall portion of the polymeric outer shell includes a plurality of torque-transfer ribs. The exterior surface of the polymeric top wall portion of the polymeric inner shell includes a plurality of torque-transfer extending projections. The plurality of torque-transfer ribs and the plurality of torque-transfer extending projections cooperate to form a child-resistant feature by preventing or inhibiting opening of the container by only rotational movement. Each of the plurality of torque-transfer extending projections may have a generally straight side and an opposing ramped side.

[0008] According to a further configuration of the above implementation, the interior surface of the polymeric annular skirt portion of the polymeric outer shell forms an inwardly-extending annular retention ledge. The inwardly-extending annular retention ledge assists in preventing or inhibiting the polymeric inner shell from being separating from the polymeric outer shell.

[0009] In a further aspect of the above implementation, the at least one opening of the polymeric top wall portion is a plurality of openings extending through the polymeric top wall portion. The plurality of openings forms written instructions, provide general information or warnings in one embodiment.

[0010] In yet a further aspect of the above implementation, the entire portion of the inner shell includes the first color and the entire portion of the outer shell includes the second color.

[0011] According to another aspect of the present disclosure, a package comprises a container and a polymeric closure assembly. The container has a neck portion defining an opening. The neck portion has an exterior surface and an interior surface. The container has a thread formation being located on the exterior surface of the neck portion. The polymeric closure assembly is configured for fitment to the neck portion of the container. The polymeric closure assembly includes a polymeric inner shell and a polymeric outer shell. The polymeric outer shell includes a polymeric top wall portion and a polymeric annular skirt portion. The polymeric annular skirt portion of the polymeric outer shell depends from the polymeric top wall portion of the polymeric outer shell. The polymeric top wall portion of the outer shell includes an exterior surface and an interior surface. The polymeric top wall portion forms at least one opening that extends therethrough. The polymeric inner shell includes a polymeric top wall portion and a polymeric annular skirt portion. The polymeric top wall portion of the polymeric inner shell forms an opening therein. The polymeric annular skirt portion of the polymeric inner shell depends from the polymeric top wall portion of the polymeric inner shell. The polymeric top wall portion of the polymeric inner shell includes an exterior surface and an interior surface. The polymeric annular skirt portion of the polymeric inner shell includes an exterior surface and an interior surface. The polymeric inner shell resides within the polymeric outer shell. At least a portion the polymeric top wall portion of the inner shell includes a first color. At least a portion the polymeric top wall portion of the outer shell includes a second color. The first and second colors are distinct and contrasting colors. The second color is visible through the at least one opening formed in the polymeric outer shell.

[0012] According to a configuration of the above implementation, the interior surface of the polymeric annular skirt portion of the polymeric inner shell includes a thread formation for mating engagement with a thread formation of a container.

[0013] According to another configuration of the above implementation, the interior surface of the polymeric top wall portion of the polymeric outer shell includes a plurality of torque-transfer ribs. The exterior surface of the polymeric top wall portion of the polymeric inner shell includes a plurality of torque-transfer extending projections. The plurality of torque-transfer ribs and the plurality of torque-transfer extending projections cooperate to form a child-resistant feature by preventing or inhibiting opening of the container by only rotational movement. Each of the plurality of torque-transfer extending projections may have a generally straight side and an opposing ramped side.

[0014] According to a further configuration of the above implementation, the interior surface of the polymeric annular skirt portion of the polymeric outer shell forms an inwardly-extending annular retention ledge. The inwardly-extending annular retention ledge assists in preventing or inhibiting the polymeric inner shell from being separating from the polymeric outer shell.

[0015] In a further aspect of the above implementation, the at least one opening of the polymeric top wall portion is a plurality of openings extending through the polymeric top wall portion. The plurality of openings forms written instructions, provide general information or warnings in one embodiment.

[0016] In yet a further aspect of the above implementation, the entire portion of the inner shell includes the first color and the entire portion of the outer shell includes the second color.

[0017] The above summary is not intended to represent each embodiment or every aspect of the present invention. Additional features and benefits of the present invention are apparent from the detailed description and figures set forth below.BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Other advantages of the invention will become apparent upon reading the following detailed description and upon reference to the drawings in which:

[0019] FIG. 1A is a top view of a polymeric outer shell to be used in a polymeric closure assembly according to one embodiment.

[0020] FIG. 1B is a top perspective view of the polymeric outer shell of FIG. 1A.

[0021] FIG. 1C is a bottom perspective view of the polymeric outer shell of FIG. 1A.

[0022] FIG. 1D is a bottom view of the polymeric outer shell of FIG. 1A.

[0023] FIG. 1E is a cross-sectional view taken generally along line 1E-1E in FIG. 1B.

[0024] FIG. 2A is a top view of a polymeric inner shell to be used in a polymeric closure assembly according to one embodiment.

[0025] FIG. 2B is a top perspective view of the polymeric inner shell of FIG. 2A.

[0026] FIG. 2C is a bottom perspective view of the polymeric inner shell of FIG. 2A.

[0027] FIG. 2D is a bottom view of the polymeric inner shell of FIG. 2A.

[0028] FIG. 2E is a cross-sectional view taken generally along line 2E-2E in FIG. 2B.

[0029] FIG. 3A is a top view of a polymeric closure assembly using the polymeric outer shell of FIG. 1A and the polymeric inner shell of FIG. 2A according to one embodiment.

[0030] FIG. 3B is a top perspective view of the polymeric closure assembly of FIG. 3A.

[0031] FIG. 3C is a bottom perspective view of the polymeric closure assembly of FIG. 3A.

[0032] FIG. 3D is a bottom view of the polymeric closure assembly of FIG. 3A.

[0033] FIG. 3E is a cross-sectional view taken generally along line 3E-3E in FIG. 3B.

[0034] FIG. 4A is a side view of a container according to one embodiment.

[0035] FIG. 4B is a top perspective view of the container of FIG. 4A.

[0036] FIG. 5A is a side view of a package using the container of FIG. 4A and the polymeric closure assembly of FIG. 3A.

[0037] FIG. 5B is a top perspective view of the package of FIG. 5A.

[0038] FIG. 5C is a cross-sectional view taken generally along line 5C-5C in FIG. 5B.

[0039] FIG. 6 is a top view of a polymeric outer shell to be used in a polymeric closure assembly according to another embodiment.

[0040] While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof have been shown by way of example in the drawings and will herein be described in detail. It should be understood, however, that it is not intended to limit the invention to the particular forms disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.DETAILED DESCRIPTION

[0041] Referring to FIGS. 3A-3E, a polymeric closure assembly 10 according to one embodiment is shown. The polymeric closure assembly 10 includes a polymeric outer shell 20 and a polymeric inner shell 60. The polymeric inner shell 60 resides within the polymeric outer shell 20. The polymeric outer shell 20 is shown in FIGS. 1A-1E, while the polymeric inner shell 60 is shown in FIGS. 2A-2E. The polymeric closure assembly 10 is configured to be used with a container 200, which is shown in FIGS. 4A, 4B. Specifically, the polymeric closure assembly 10 is configured for fitment to the neck portion of the container 200 for closing and opening of the container. The polymeric closure assembly 10 and the container 200 form a package 300 that is shown in FIGS. 5A-5C.

[0042] The polymeric outer shell 20 and the polymeric inner shell 60 as viewed from a top view (FIGS. 1A, 1B) is in the form of a generally circular shape. It is contemplated that the polymeric outer and inner shells may be of different shapes.

[0043] The polymeric closure assemblies of the present invention are advantageous by avoiding the expenses associated with adding an inked label to the polymeric closure assembly to achieve contrasting colors. The inked label may communicate warnings, general information or written instructions, which may be required by statute or regulations. This eliminates the need for additional equipment to place the inked label onto the polymeric closure assembly. This labeling step(s) also involves additional processing time, as well as expenses in the forming or purchasing an inked label.

[0044] Referring back to FIGS. 1A-1E, the polymeric outer shell 20 includes a polymeric top wall portion 22 and a polymeric annular skirt portion 24. The polymeric annular skirt portion 24 depends from the polymeric top wall portion 22. The polymeric top wall portion 22 has an exterior surface 22a and an interior surface 22b. The polymeric annular skirt portion 24 has an exterior surface 24a and an interior surface 24b.

[0045] The polymeric top wall portion 22 forms a plurality of at least one opening 26a-26m as best shown in FIGS. 1A, 1B, 1D. These openings 26a-26m extend fully through the polymeric top wall portion 22. The plurality of openings 26a-26m formed in the polymeric top wall portion 22 corresponds to written instructions. Specifically, in this embodiment, the openings 26a-26m form the phrase “PUSH DOWN & TURN”. The at least one opening 26a is two openings that combine together to form the letter “P”, while the at least opening 26c is one opening that forms the letter “S”. It is contemplated that the opening may communicate warnings, general information or written instructions, whether required by statue or regulation or are desirable.

[0046] As shown best in FIG. 1B, the polymeric top wall portion 22 further includes instructions that are raised in height relative to the remainder of the polymeric top wall portion 22. Specifically, the exterior surface 22a of the polymeric top wall portion 22 includes the raised terms “OPEN” and “CLOSE TIGHTLY”. It is contemplated that instead of being raised, these instructions may also be formed by openings such as in the phrase “PUSH DOWN & TURN”. The exterior surface 22a of the polymeric top wall portion 22 also includes arrows 28a, 28b and arrows 30a, 30b. Arrows 28a, 28b are shown in a counter-clockwise direction with the term “OPEN” therebetween to indicate the direction to open the closure. Arrows 30a, 30b are shown in a clockwise direction with the term “CLOSE TIGHTLY” therebetween to indicate the directions to close the closure. It is contemplated that instead of being raised, the arrows may also be formed by openings such as in the phrase “PUSH DOWN & TURN”. The arrows 28a, 28b, 30a, 30b and the written terms on the exterior surface 22a instructing a user on how to open the polymeric closure assembly.

[0047] It is contemplated that an exterior surface of the polymeric top wall portion may forms openings in the shape of symbols, pictures, icons or written language to assist a user with instructions on opening the polymeric closure assembly, provide warnings or provide desired general information or messaging. One non-limiting example of the same is shown in FIG. 6 with a polymeric outer shell 420. The polymeric outer shell 420 form a plurality of openings that function in a similar manner as the above-described openings. The plurality of openings may form the shown hand with bridges built into the drawings such that no islands are present. The plurality of openings may further include the shown arrows.

[0048] It is contemplated that other symbols, pictures or icons may be used. For example, there may be an arrow showing the downward pressure onto a depicted closure (e.g., a closure and a second arrow showing a rotating movement in the counter-clockwise or clockwise direction onto the depicted closure on the polymeric top wall portion . These arrows may be numbered 1 or 2 to show the order in which the action are performed with the number 1 being associated with the arrow showing the downward pressure and the number 2 being associated with the arrow showing the counter-clockwise or clockwise direction .

[0049] It is also contemplated that openings may be formed on the sidewall instead or in addition to the openings on the polymeric top wall portion.

[0050] Referring back to FIGS. 1C, 1D, the interior surface 22b of the polymeric top wall portion 22 includes a plurality of torque-transfer ribs 32. The plurality of torque-transfer ribs 32 extends inwardly from or near the polymeric annular skirt portion 24. As will be discussed below, each of the torque-transfer ribs 32 is configured to engage with a respective one of the torque-transfer extending projections of the polymeric inner shell 60 to prevent or inhibit opening by rotational movement only of the polymeric closure assembly 10 after being threaded on a container.

[0051] The plurality of torque-transfer ribs 32 is shown as being an elongated rectangular shape. It is contemplated that the torque-transfer ribs may be shaped or sized differently from that shown in FIG. 1C.1D . The torque-transfer ribs, however, need to assist in preventing or inhibiting opening or closing of the container by rotational movement only in conjunction with the torque-transfer projections discussed below.

[0052] The number of torque-transfer ribs formed on the polymeric top wall portion of the polymeric outer shell may vary but is generally from about 4 to about 20. The number of torque-transfer ribs formed on the polymeric top wall portion of the polymeric outer shell is typically from about 8 to about 16.

[0053] Referring back to FIGS. 1B, 1C, the exterior surface 24a of the polymeric annular skirt portion 24 includes a plurality of ridges or knurls 24c thereon. The plurality of ridges 24c assists a user in gripping the polymeric closure assembly 10 when moving between closed and open positions. It is contemplated that the ridges, if used, may be discontinuous around the periphery of the polymeric outer shell.

[0054] Referring to FIG. 1E, the interior surface 24b of the polymeric annular skirt portion 24 includes an inwardly-extending annular retention ring or ledge 42 at a bottom portion thereof. The inwardly-extending annular retention ledge 42 is located opposite from the polymeric top wall portion 22 of the polymeric outer shell 20. The inwardly-extending annular retention ring 42 assists in retaining the polymeric outer and inner shells 20, 60 together.

[0055] It is contemplated that the inwardly-extending annular retention ring may include a plurality of undercut notches (not shown) formed therein that assists in the manufacturing process. More specifically, the plurality of undercut notches, if used, would typically assist in releasing the polymeric outer shell from a mold when the polymeric outer shell is made by a molding process (e.g., injection molding).

[0056] The thickness of the polymeric annular skirt portion 24 of the polymeric outer shell 20 is generally from about 0.02 to about 0.08 inch in one embodiment. In another embodiment, the thickness of the polymeric annular skirt portion of the polymeric outer shell is from about 0.03 to about 0.07 inch. In a further embodiment, the thickness of the polymeric annular skirt portion of the polymeric outer shell is from about 0.04 to about 0.06 inch.

[0057] Referring to FIGS. 2A-2E, the polymeric inner shell 60 includes a polymeric top wall portion 62 and a polymeric annular skirt portion 64. The polymeric annular skirt portion 64 depends from the polymeric top wall portion 62. The polymeric top wall portion 62 has an exterior surface 62a and an interior surface 62b. The polymeric annular skirt portion 64 has an exterior surface 64a and an interior surface 64b.

[0058] The thickness of the polymeric annular skirt portion 64 of the polymeric inner shell 60 is generally from about 0.02 to about 0.08 inch in one embodiment. In another embodiment, the thickness of the polymeric annular skirt portion of the polymeric inner shell is from about 0.03 to about 0.07 inch. In a further embodiment, the thickness of the polymeric annular skirt portion of the polymeric inner shell is from about 0.04 to about 0.06 inch.

[0059] The polymeric top wall portion 62 of the polymeric inner shell 60 forms a plurality of torque-transfer extending projections 70 as shown in FIGS. 2A, 2B. The polymeric annular skirt portion 64 includes a thread formation 80 (FIG. 2C) wherein the thread formation 80 of the polymeric inner shell 60 is an internal thread formation for mating engagement with an external thread formation of a container. It is contemplated that internal an eternal threading may be reversed on the polymeric closure assembly and the container.

[0060] It is also contemplated that the polymeric inner shell may be formed in the absence of an internal thread formation. For example, the polymeric closure assembly including the polymeric inner and outer shells may be a snap-on closure assembly. In this embodiment, the polymeric closure is placed on a container by downward (axial) pressure in the absence of a threading motion. In such an embodiment, a user would align arrows or other feature on the closure assembly and the container that correlate with an interruption in a continuous rib. When the closure assembly and container are aligned, a user may pry open the closure assembly from the container since a rib or other feature will not prevent or inhibit the removal of the closure assembly from the container.

[0061] Referring to FIGS. 2A, 2B, the plurality of torque-transfer extending projections 70 is formed on the polymeric top wall portion 62 of the polymeric inner shell 60. The plurality of torque-transfer extending projections 70 is located near or at an outer edge 62c of the polymeric top wall portion 62.

[0062] Referring to FIGS. 2A, 2B, 2E, each of the torque-transfer extending projections 70 has a ramped side 70a and a generally straight side 70b. Referring specifically to FIG. 2B, the generally straight side 70b is perpendicular or generally perpendicular to the exterior surface 62a of the polymeric top wall portion 62. The ramped side 70a and the generally straight side 70b are located on opposing sides of the torque-transfer extending projection 70. Each of the torque-transfer extending projections 70 has a top surface 70c that bridges the ramped side 70a and the generally straight side 70b. The ramped side 70a is angled and generally has an angle A of from about 110 to about 160 degrees, and typically has an angle A from about 120 to about 150 degrees (see FIG. 2E). The generally straight side generally 70b has an angle B of from about 75 to about 105 degrees, and typically has an angle B from about 80 to about 100 degrees (see FIG. 2E).

[0063] The plurality of torque-transfer extending projections 70 of the polymeric inner shell 60 works in conjunction with the plurality of torque-transfer ribs 32 of the polymeric outer shell 20 to provide child resistance. It is noted that in the initial position of a polymeric closure assembly 10, the plurality of torque-transfer extending projections 70 of the polymeric inner shell 60 do not contact and are spaced from the plurality of torque-transfer ribs 32 of the polymeric outer shell 20.

[0064] If a user turns the polymeric closure assembly 10 in a counterclockwise direction (direction of arrows 28a, 28b in FIGS. 3A, 3B and direction of arrow A in FIG. 5B) in an attempt to open the container and access the contents, the plurality of torque-transfer ribs 32 will initially ride up the ramped side 70a of the torque-transfer extending projections 70 and along the top surface 70c and then downwardly at the generally straight side 70b. During this movement in the counterclockwise direction, the thread formation 80 of the polymeric inner shell 60 will not mate or engage with the thread formation of a container. Thus, the container 200 will not be opened and will remain in a closed position with the polymeric closure assembly 10 without sufficient top loaded force.

[0065] To open the container 200 such that the thread formation 80 of the polymeric inner shell 60 engages with a corresponding thread formation of the container, a user must press in an axial, downward direction (direction of arrow B in FIGS. 5A, 5B) on the exterior surface 22a of the polymeric top wall portion 22 of the polymeric outer shell 20 coupled with movement in a radially counterclockwise direction such that the thread formations of the polymeric inner shell and the container will engage with other, allowing the polymeric closure assembly 10 to unthread from the container 200. It is contemplated in another embodiment that the opening process may include rotating the polymeric closure assembly in the opposite direction - in a clockwise direction.

[0066] Each of the plurality of torque-transfer extending projections 70 shown in FIGS. 2A, 2B is in the shape of the letter “C”. This shape of the torque-transfer extending projections 70 is designed to reduce the material costs associated therewith, while still providing the functionality of the torque-transfer extending projections.

[0067] It is contemplated that the torque-transfer projections of the polymeric inner shell may be shaped or sized differently from that shown in FIGS. 2A, 2B. The torque-transfer projections, however, need to assist in preventing or inhibiting opening or closing of the container by rotational movement only in conjunction with the torque-transfer ribs of the polymeric outer shell.

[0068] The number of torque-transfer projections formed on the polymeric top wall portion of the polymeric inner shell may vary but is generally from about 4 to about 20. The number of torque-transfer projections formed on the polymeric top wall portion is typically from about 8 to about 16.

[0069] Referring specifically to FIG. 2C, the polymeric annular skirt portion 64 of the polymeric inner shell 60 includes an internal thread formation 80 for mating engagement with an external thread formation of the container 200. The internal thread formation 80 is located on the interior surface 64b of the polymeric annular skirt portion 64. The internal thread formation 80 is one continuous helical thread in this embodiment. It is contemplated that the internal helical thread formation may be discontinuous.

[0070] In another embodiment, the internal thread formation of a polymeric annular skirt portion of a polymeric inner shell includes a first closure lead and a second closure lead, which are referred collectively as a double lead closure thread. Each of the first and second closure leads may be continuous. The first and second helical closure leads may be helical. The first positions of the first and second closure leads are often located roughly 180 degrees apart from each other and, thus, begin on generally opposing sides of the polymeric inner shell. It is contemplated that the first and second closure leads may be discontinuous.

[0071] It is also contemplated that the internal thread formation of the polymeric inner shell may differ from a helical thread formation. It is also contemplated that other internal thread formations may be used in the polymeric inner shell. For example, the internal thread formation may include a triple-threaded structure having first, second and third closure leads.

[0072] It is contemplated that in addition to the polymeric outer and inner shells, the polymeric closure assembly may include a liner. If used, the liner is configured to attach to both the polymeric inner shell and a finish of a container. The liner may be a one-piece liner in one embodiment. In another embodiment, if used, a liner may be formed in a two-piece liner that is configured to separate into two separate pieces on opening. A liner assists in sealing the polymeric closure assembly and the container to form the package. A liner also forms a tamper-evident feature by sealing with a finish of a container. A liner may also assist to prevent or inhibit any liquid if any opening is formed in a polymeric inner shell. The liner may form an interference or press fit with an interior surface of the polymeric inner shell in one embodiment.

[0073] The polymeric closure assemblies may include an oxygen-scavenger material. This oxygen-scavenger material may be distributed within the polymeric closure assemblies may be a separate layer. The oxygen-scavenger material may be any material that assists in removing oxygen within the container, while having little or no effect on the contents within the container.

[0074] Referring to FIGS. 3A, 3B, the outer polymeric shell 20 and the inner polymeric inner shell 60 of the polymeric closure assembly 10 includes distinct and contrasting colors. In one embodiment, at least a portion of the polymeric top wall portion 22 of the outer polymeric shell 20 comprises a first color and at least a portion of the polymeric top wall portion 62 of the polymeric inner shell 60 comprises a second color. In another embodiment, the entire portion of the polymeric top wall portion 22 of the outer polymeric shell 20 comprises a first color and the entire portion of the polymeric top wall portion 62 of the polymeric inner shell 60 comprises a second color. In a further embodiment, the entire portion of the outer polymeric shell 20 comprises a first color and the entire portion of the polymeric inner shell 60 comprises a second color. In yet another embodiment, a majority of the outer polymeric shell 20 comprises a first color and a majority of the polymeric inner shell 60 comprises a second color. In yet a further embodiment, substantially all of the outer polymeric shell 20 comprises a first color and substantially all of the polymeric inner shell 60 comprises a second color.

[0075] The first and second colors of the outer polymeric shell 20 and the inner polymeric shell 60 are distinct and contrasting colors. The second color of the inner polymeric shell 60 is visible through the plurality of openings 26 formed in the polymeric outer shell 20 Thus, when the outer and inner polymeric shells 20, 60 are positioned together to form the polymeric container assembly 10, a user can visually see the second color of the inner polymeric shell 60 as shown in FIG. 3A. Specifically, for example, the second color of the top polymeric top wall portion 62a can be seen through opening 26b in FIG. 3A. Similarly, the second color of the top wall polymeric wall portion 62a can be seen though openings 26a-26m in the phrase “PUSH DOWN & TURN”.

[0076] The contrasting first and second colors may be a variety of different colors or clearly distinct color shades. For example, the colors could be green and white, blue and white, and black and white. The first and second color may be a dark forest green and a bright lime green or a dark blue and a light powder blue.

[0077] Alternatively, or in addition to, the polymeric closure assemblies may include an oxygen-barrier material. The oxygen-barrier material may be added as a separate layer or may be integrated within the closure itself. The oxygen-barrier materials assist in preventing or inhibiting oxygen from entering the container through the polymeric closure assemblies. These materials may include, but are not limited to, ethylene vinyl alcohol (EVOH). It is contemplated that other oxygen-barrier materials may be used in the polymeric closure assemblies.

[0078] As discussed above, the polymeric container assembly 10 is used with the container 200 to form the package 300. The container has a neck portion defining an opening. The neck portion has an exterior surface and an interior surface. The container has an external thread formation on the neck portion in one embodiment.

[0079] Referring to FIGS. 4A, 4B, the container 200 is shown that includes a neck portion 202 defining an opening 206. The opening 206 is located opposite of a bottom 204 of the container 200. The container 200 includes a continuous side wall 208 that extends from the bottom 204 to the neck portion 202. The neck portion 202 of the container 200 includes an external thread formation 210 and an A-collar 214 to assist in manufacturing and movement of the container.

[0080] In one embodiment, a package comprises a container and a polymeric closure assembly. The container has a neck portion defining an opening. The neck portion has an exterior surface and an interior surface. The container has an external thread formation on the neck portion. The polymeric closure assemblies are configured for fitment to the neck portion of the container for closing the opening. The polymeric closure assemblies are configured to be placed on containers or bottles that contain product. The product may be a liquid product, but also may be a solid product or a combination of a liquid and solid product.

[0081] One non-limiting example of a polymeric closure assembly and a container forming a package is shown in FIGS. 5A-5C. FIG. 5A is a side perspective view of the package 300 including the polymeric closure assembly 10 of FIGS. 3A-3E and the container 200 of FIGS. 4A, 4B. FIG. 5B is a top perspective view of the package 300 including the polymeric closure assembly 10 of FIGS. 3A-3E and the container 200 of FIGS. 4A, 4B. FIGS. 5A-5C show the package 300 in an unopened position or state.

[0082] The outer shell portion 20 and the inner shell portion 60 are made of polymeric material. The outer shell portion 20 and the inner shell portion 60 are typically made of an olefin (e.g., polyethylene (PE), polypropylene (PP)), polyethylene terephthalate (PET) or blends thereof. One example of a polyethylene that may be used is high density polyethylene (HDPE). It is contemplated that the outer shell portion and the inner shell portion may be made of other polymeric materials.

[0083] The polymeric closure assemblies are typically formed by molding processes such as injection molding. It is contemplated that other processes may be used in forming the polymeric closure assemblies of the present invention.

[0084] The container 200 is typically made of polymeric material. One non-limiting example of a material to be used in forming a polymeric container is polyethylene terephthalate (PET), polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), or blends using the same. It is contemplated that the container may be formed of other polymeric or copolymer materials. The container 200 typically has an encapsulated oxygen-barrier layer or oxygen barrier material incorporated therein.

[0085] In one method of manufacturing the package, a closure assembly and a container are initially provided. A non-limiting example of a polymeric closure assembly and the container is the polymeric closure assembly 10 and the container 200 discussed above. The polymeric closure assembly 10 is threaded onto the container 200 during manufacturing.

[0086] To open the polymeric closure assembly 10, a user rotates the polymeric outer shell 20 in a counterclockwise direction (the direction of arrow A in FIG. 5B), while simultaneously pushing down with axial force (in the direction of arrow B in FIG. 5B). This removes the polymeric closure assembly 10 from the container 200. This is the child-resistant feature to prevent or inhibit individuals from obtaining the contents located within an interior of the container 200 without both pressing with sufficient axially pressure with a rotational turn. If a liner is used, a user would need to remove the liner to gain access into the contents of the container.

[0087] To close the polymeric closure assembly 10, a user rotates the polymeric outer shell 20 in a clockwise direction (in the direction of arrow B in FIG. 5B) in this embodiment. It is contemplated that the polymeric closure assembly may be configured to be opened in a clockwise direction and closed in a counterclockwise direction.

[0088] The polymeric closure assemblies are desirable in both low-temperature and high-temperature applications. The polymeric closure assemblies may be used in low-temperature applications such as an ambient or a cold fill. These applications include water, sports drinks, aseptic applications such as dairy products, and pressurized products such as carbonated soft drinks. It is contemplated that other low-temperature applications may be used with the polymeric closures.

[0089] The polymeric closure assemblies may be exposed to high-temperature applications such as hot-fill, pasteurization, and retort applications. A hot fill application is generally performed at temperatures around 185º F, while a hot fill with pasteurization is generally performed at temperatures around 205º F. Retort applications are typically done at temperatures greater than 244º F. It is contemplated that the polymeric closure assemblies can be used in other high-temperature applications.

[0090] While the foregoing written description of the invention enables one of ordinary skill to make and use what is considered presently to be the best mode thereof, those of ordinary skill will understand and appreciate the existence of variations, combinations, and equivalents of the specific embodiment, method, and examples herein. The invention should therefore not be limited by the above described embodiment, method, and examples, but by all embodiments and methods within the scope and spirit of the invention.

Examples

Embodiment Construction

[0041]Referring to FIGS. 3A-3E, a polymeric closure assembly 10 according to one embodiment is shown. The polymeric closure assembly 10 includes a polymeric outer shell 20 and a polymeric inner shell 60. The polymeric inner shell 60 resides within the polymeric outer shell 20. The polymeric outer shell 20 is shown in FIGS. 1A-1E, while the polymeric inner shell 60 is shown in FIGS. 2A-2E. The polymeric closure assembly 10 is configured to be used with a container 200, which is shown in FIGS. 4A, 4B. Specifically, the polymeric closure assembly 10 is configured for fitment to the neck portion of the container 200 for closing and opening of the container. The polymeric closure assembly 10 and the container 200 form a package 300 that is shown in FIGS. 5A-5C.

[0042]The polymeric outer shell 20 and the polymeric inner shell 60 as viewed from a top view (FIGS. 1A, 1B) is in the form of a generally circular shape. It is contemplated that the polymeric outer and inner shells may be of diffe...

Claims

1. A polymeric closure assembly comprising:a polymeric outer shell including a polymeric top wall portion and a polymeric annular skirt portion, the polymeric annular skirt portion of the polymeric outer shell depending from the polymeric top wall portion of the polymeric outer shell, the polymeric top wall portion of the outer shell including an exterior surface and an interior surface, the polymeric top wall portion forming at least one opening that extends therethrough;a polymeric inner shell including a polymeric top wall portion and a polymeric annular skirt portion, the polymeric annular skirt portion of the polymeric inner shell depending from the polymeric top wall portion of the polymeric inner shell, the polymeric top wall portion of the polymeric inner shell including an exterior surface and an interior surface, the polymeric annular skirt portion of the polymeric inner shell including an exterior surface and an interior surface, the polymeric inner shell residing within the polymeric outer shell,wherein at least a portion the polymeric top wall portion of the outer shell includes a first color,wherein at least a portion the polymeric top wall portion of the inner shell includes a second color, the first and second colors being distinct and contrasting colors,wherein the second color is visible through the at least one opening formed in the polymeric outer shell.

2. The closure assembly of claim 1, wherein the interior surface of the polymeric annular skirt portion of the polymeric inner shell includes a thread formation for mating engagement with a thread formation of a container.

3. The closure assembly of claim 1, wherein the interior surface of the polymeric top wall portion of the polymeric outer shell includes a plurality of torque-transfer ribs, the exterior surface of the polymeric top wall portion of the polymeric inner shell including a plurality of torque-transfer extending projections, the plurality of torque-transfer ribs and the plurality of torque-transfer extending projections cooperating to form a child-resistant feature by preventing or inhibiting opening of the container by only rotational movement.

4. The closure assembly of claim 3, wherein each of the plurality of torque-transfer extending projections has a generally straight side and an opposing ramped side.

5. The closure assembly of claim 1, wherein the interior surface of the polymeric annular skirt portion of the polymeric outer shell forms an inwardly-extending annular retention ledge, the inwardly-extending annular retention ledge assisting in preventing or inhibiting the polymeric inner shell from being separating from the polymeric outer shell.

6. The closure assembly of claim 1, wherein the at least one opening of the polymeric top wall portion is a plurality of openings extending through the polymeric top wall portion.

7. The closure assembly of claim 6, wherein the plurality of openings form written instructions, provide general information or warnings.

8. The closure assembly of claim 1, wherein the entire portion of the inner shell includes the first color and the entire portion of the outer shell includes the second color.

9. A package comprising:a container having a neck portion defining an opening, the neck portion having an exterior surface and an interior surface, the container having a thread formation being located on the exterior surface of the neck portion; anda polymeric closure assembly configured for fitment to the neck portion of the container, the polymeric closure assembly including a polymeric inner shell and a polymeric outer shell, the polymeric outer shell including a polymeric top wall portion and a polymeric annular skirt portion, the polymeric annular skirt portion of the polymeric outer shell depending from the polymeric top wall portion of the polymeric outer shell, the polymeric top wall portion of the outer shell including an exterior surface and an interior surface, the polymeric top wall portion forming at least one opening that extends therethrough, the polymeric inner shell including a polymeric top wall portion and a polymeric annular skirt portion, the polymeric top wall portion of the polymeric inner shell forming an opening therein, the polymeric annular skirt portion of the polymeric inner shell depending from the polymeric top wall portion of the polymeric inner shell, the polymeric top wall portion of the polymeric inner shell including an exterior surface and an interior surface, the polymeric annular skirt portion of the polymeric inner shell including an exterior surface and an interior surface, the polymeric inner shell residing within the polymeric outer shell,wherein at least a portion the polymeric top wall portion of the inner shell includes a first color,wherein at least a portion the polymeric top wall portion of the outer shell includes a second color, the first and second colors being distinct and contrasting colors,wherein the second color is visible through the at least one opening formed in the polymeric outer shell.

10. The package of claim 9, wherein the interior surface of the polymeric annular skirt portion of the polymeric inner shell includes a thread formation for mating engagement with a thread formation of the container.

11. The package of claim 9, wherein the interior surface of the polymeric top wall portion of the polymeric outer shell includes a plurality of torque-transfer ribs, the exterior surface of the polymeric top wall portion of the polymeric inner shell including a plurality of torque-transfer extending projections, the plurality of torque-transfer ribs and the plurality of torque-transfer extending projections cooperating to form a child-resistant feature by preventing or inhibiting opening of the container by only rotational movement.

12. The package of claim 9, wherein each of the plurality of torque-transfer extending projections has a generally straight side and an opposing ramped side.

13. The package of claim 9, wherein the interior surface of the polymeric annular skirt portion of the polymeric outer shell forms an inwardly-extending annular retention ledge, the inwardly-extending annular retention ledge assisting in preventing or inhibiting the polymeric inner shell from being separating from the polymeric outer shell.

14. The package of claim 9, wherein the at least one opening of the polymeric top wall portion is a plurality of openings extending through the polymeric top wall portion.

15. The package of claim 14, wherein the plurality of openings form written instructions, provide general information or warnings.

16. The package of claim 9, wherein the entire portion of the inner shell includes the first color and the entire portion of the outer shell includes the second color.

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