Bottle screw cap and methods for making and using same

Abstract

The screw cap (14, 502) configured to be removably attachable to the bottle (12) includes a base (40) and an annular skirt (42, 508) extending downwardly from the base (40). One or more threads (32) extend radially inward from an inner surface of the skirt (42, 508). A retention feature (509) extends radially inward from the inner surface of the skirt (42, 508). The retention feature (509) is configured to generate at least one of an audible or a tactile response when the cap (14, 502) is rotated relative to the bottle (12).

Description

[Technical Field]

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS This application claims priority to U.S. Provisional Patent Application No. 62 / 916,545, filed October 17, 2019, entitled "BOTTLE SCREW CAPS AND METHOD FOR MAKING AND USING SAME," the entire disclosure of which is incorporated herein by reference in its entirety.

[0002] The disclosed technology generally relates to a screw cap for providing a moisture-tight seal to a bottle. More specifically, in one embodiment, the disclosed technology relates to a screw cap having an elastomeric seal that provides sufficient closure integrity so that a heat-sealed closure is not required to maintain the shelf life of the bottle's contents. [Background technology]

[0003] For example, commercially available pharmaceutical containers for tablets and capsules are typically provided as glass or plastic bottles with removable caps (often with some type of child-resistant configuration). For example, over-the-counter (OTC) pain relievers, allergy medications, and dietary supplements and vitamins are often provided in such bottles. Generally, as the ability of such containers to resist moisture penetration increases, the complexity, and corresponding cost, of such containers increases.

[0004] Typically, to ensure the contents of the bottle have not been tampered with, a flexible seal (typically constructed of foil, paper, flexible / thin plastic, cardboard, or a composite of one or more of the foregoing) provides a hermetic, airtight seal at the container opening. When a user initially desires to access the contents of the container, the user can permanently puncture the seal or at least partially remove the seal. The intact seal protects the contents of the container from the ambient environment and provides a visual indicator to the user that the container has not been tampered with.

[0005] Depending on the nature of the contents of the container, a desiccant or other active material may be required to control the environment within the container. Typically, the desiccant is provided in the form of a desiccant containing bag or cylindrical canister that is located loosely within the body of the container along with the contents of the container.

[0006] Such containers are typically filled via automated processing. A tamper-evident seal, such as a foil seal, is often applied to cover the container's opening after filling. Various methods and means for securing the seal are known, for example, via adhesive or heat. The most common method for applying the seal is via induction sealing. Induction sealing is a process that relies on electrical current within a material, such as foil and / or cardboard, to generate heat. Induction sealing and other sealing means require special equipment and materials within the filling line. These types of seals tend to be necessary to maintain the shelf life of the container's contents.

[0007] Not all filling lines have induction sealing devices and do not necessarily require a foil seal. Therefore, a need exists for a bottle and cap assembly that provides a desirable shelf life for the bottle contents without requiring a foil seal.

[0008] Furthermore, if a foil seal is desired, once the seal is broken (upon first use), the moisture tightness of the bottle is compromised, even if the cap is replaced over it. Conventional bottle caps do not provide a moisture tight seal. Summary of the Invention

[0009] As noted above, there is a need to create an improved screw cap for a bottle. These and other needs are addressed by the technology of the present disclosure.

[0010] In one aspect, the disclosed technology is directed to a screw-top cap for a bottle assembly. The cap includes a body having a base, an annular skirt depending downward from the periphery of the base, and at least one internal flexible lip seal member depending downward from the base. The lip seal member is disposed concentrically with and internal to the annular skirt. The annular skirt has internal threads configured to threadably engage with corresponding threads on an outer portion of the bottleneck. The cap may optionally include a thermoplastic elastomer seal member disposed on the base around the entire periphery, the thermoplastic elastomer seal member configured to engage and form a seal with an end portion of the bottleneck. The at least one internal flexible lip seal member is configured to engage and form a seal with an inner or outer surface of the bottleneck.

[0011] In another aspect, the disclosed technology is directed to a bottle assembly including a bottle and the aforementioned screw-top cap. [Brief explanation of the drawings]

[0012] The following detailed description of the technology of the present disclosure will be better understood when read in conjunction with the accompanying drawings, in which like numerals refer to like elements throughout. For the purpose of illustrating the technology disclosed herein, there are shown in the drawings various exemplary embodiments. It should be understood, however, that the technology disclosed herein is not limited to the precise arrangements and instrumentalities shown.

[0013] [Figure 1] FIG. 10 is a perspective view of a screw cap and bottle assembly according to an optional aspect of the disclosed technology. [Figure 2] 2 is a cross-sectional elevation view of the screw cap and bottle assembly taken along line II-II of FIG. 1. [Figure 2A] FIG. 3 is an enlarged view of area A in FIG. 2. [Figure 2B] 2C is an image similar to FIG. 2B of an alternative embodiment of the disclosed technique. [Figure 3A]FIG. 2C is a schematic diagram illustrating the first step or shot of an optional injection molding process that may be used to form the screw cap shown in FIGS. 1-2B. [Figure 3B] FIG. 2C is a schematic diagram illustrating a second step or shot of an optional injection molding process that may be used to form the screw cap shown in FIGS. 1-2B. [Figure 3C] FIG. 4 is a schematic diagram illustrating a third step or shot of an optional injection molding process that may be used to form the screw cap shown in FIGS. 1-2B. [Figure 4] FIG. 10 is a perspective view of a screw cap according to another embodiment of the disclosed technology; [Figure 5] FIG. 5 is a cross-sectional view of a portion of the screw cap shown in FIG. 4. [Figure 6] FIG. 10 is a perspective view of a screw cap according to another embodiment of the disclosed technology, the screw cap including a thermoplastic elastomer sealing member; [Figure 7] FIG. 7 is another perspective view of the screw cap shown in FIG. 6. [Figure 8] FIG. 7 is a cross-sectional view of a portion of the screw cap shown in FIG. 6. [Figure 9] FIG. 10 is a perspective view of a screw cap according to another embodiment of the disclosed technology; [Figure 10] FIG. 10 is a cross-sectional view of a portion of a bottle assembly including the screw cap shown in FIG. 9. [Figure 11] FIG. 10 is a perspective view of a screw cap according to another embodiment of the disclosed technology; [Figure 12] FIG. 12 is a cross-sectional view of a portion of a bottle assembly including the screw cap shown in FIG. 11. [Figure 13] FIG. 10 is a perspective view of a screw cap according to another embodiment of the disclosed technology; [Figure 14] FIG. 14 is a cross-sectional view of a portion of a bottle assembly including the screw cap shown in FIG. 13. [Figure 15] FIG. 10 is a perspective view of a screw cap according to another embodiment of the disclosed technology; [Figure 16]FIG. 16 is an enlarged view of a portion of the screw cap shown in FIG. 15. [Figure 17] FIG. 17 is a perspective view of a bottle used with the screw cap of FIGS. 15 and 16 in a bottle assembly of another embodiment of the disclosed technology. [Figure 18] FIG. 15 is an enlarged view of a portion of the bottle of FIG. 14. [Figure 19] FIG. 19 is an enlarged view of a portion of a bottle assembly using the screw cap of FIGS. 15 and 16 and the bottle of FIGS. 17 and 18. [Figure 20A] FIG. 10 is a perspective view of a screw cap according to another embodiment of the disclosed technology; [Figure 20B] FIG. 20B is an enlarged cross-sectional view of a portion of the cap shown in FIG. 20A. [Figure 21A] FIG. 10 is a perspective view of a screw cap according to another embodiment of the disclosed technology; [Figure 21B] FIG. 21B is an enlarged cross-sectional view of a portion of the cap shown in FIG. 21A. [Figure 22A] FIG. 10 is a perspective view of a screw cap according to another embodiment of the disclosed technology; [Figure 22B] FIG. 22B is an enlarged cross-sectional view of a portion of the cap shown in FIG. 22A. [Figure 22C] FIG. 22B is another perspective view of the cap shown in FIG. 22A. [Figure 22D] FIG. 22D is an enlarged view of area D in FIG. 22C. [Figure 22E] FIG. 22B is a side elevational view of the cap shown in FIG. 22A attached to a bottle. [Figure 22F] 22E is an enlarged front view of a portion of the cap and bottle taken from the perspective of arrow A shown in FIG. 22E. [Figure 22G] 22E is an enlarged rear view of the cap and a portion of the bottle taken from the perspective of arrow B shown in FIG. 22E. [Figure 23A] FIG. 10 is a perspective view of a screw cap according to another embodiment of the disclosed technology; [Figure 23B]FIG. 23B is an enlarged cross-sectional view of a portion of the cap shown in FIG. 23A. [Figure 23C] FIG. 23B is another perspective view of the cap shown in FIG. 23A. [Figure 24A] FIG. 10 is a perspective view of a screw cap according to another embodiment of the disclosed technology; [Figure 24B] FIG. 24B is an enlarged cross-sectional view of a portion of the cap shown in FIG. 24A. [Figure 24C] FIG. 24B is another perspective view of the cap shown in FIG. 24A. [Figure 24D] FIG. 24D is an enlarged view of area D in FIG. 24C. DETAILED DESCRIPTION OF THE INVENTION

[0014] Although systems, devices, and methods are described herein by way of examples and embodiments, those skilled in the art will recognize that the disclosed technology is not limited to the described embodiments or drawings. Rather, the disclosed technology encompasses all modifications, equivalents, and alternatives falling within the spirit and scope of the appended claims. Features of any one embodiment disclosed herein may be omitted or incorporated in another embodiment.

[0015] Any headings used herein are for organizational purposes only and are not meant to limit the scope of the specification or claims. As used herein, the word "may" is used in its permissive sense (i.e., having the possibility of) rather than its required sense (i.e., must). Unless specifically stated herein, the terms "a," "an," and "the" are not limited to one element but should instead be read to mean "at least one." Terms include the above words, derivatives thereof, and words of similar import.

[0016] As used herein, "and / or" means either or both of the items separated by such term. For example, the phrase "A and / or B" would mean A alone, B alone, or both A and B.

[0017] As used herein, a statement that two or more parts or components are "coupled" shall mean that the parts are connected or operate together, either directly or indirectly, i.e., through one or more intermediate parts or components, to the extent a link occurs.

[0018] As used herein, "directly coupled" means that two elements are in direct contact with each other. As used herein, "fixedly coupled" or "fixed" means that two components are coupled such that they move as one while maintaining a constant orientation relative to each other.

[0019] As used herein, "about" in phrases such as "disposed around [element, point, or axis]" or "extending around [element, point, or axis]" or "X degrees around [element, point, or axis]" means circling, extending around, or being measured around. When used in connection with a measurement or in a similar manner, "about" means "approximately," i.e., within an approximate range associated with the measurement, as would be understood by one of ordinary skill in the art.

[0020] As used herein, "generally" means "in the usual manner" in relation to the modified term, as understood by one of ordinary skill in the art.

[0021] As used herein, the word "unitary" means a component that is produced as a single (optionally monolithic) piece or unit. That is, a component that includes parts that are produced separately and then joined together as a unit is not a "unitary" component or body.

[0022] As used herein, the statement that two or more parts or components "engage" one another is intended to mean that the parts exert a force on one another either directly or through one or more intermediate parts or components.

[0023] As used herein, the term "number" shall mean one or an integer greater than one (ie, multiple).

[0024] As used herein, the phrases "sealing engagement" or "sealing engagement" are generally intended to refer to elements contacting each other in such a way that a moisture-tight seal is formed therebetween.

[0025] Directional terms used herein, such as, but not limited to, top, bottom, left, right, upper, lower, front, rear, and derivatives thereof, refer to the orientation of the elements as shown in the drawings and are not limited to the claims unless expressly recited herein.

[0026] Generally, as used herein, the term "moisture-tight" is defined as having a moisture ingress of less than 1500 μg of water (after 3 days), in another embodiment less than 500 μg of water, in a further embodiment less than 300 μg of water, and in yet another embodiment less than 150 μg of water, as determined by the following test method: (a) place plus or minus 0.25 grams of molecular sieve into a container and record the weight, (b) completely close the container, (c) place the sealed container in an environmental chamber at 80% relative humidity and 72°F, (d) weigh the container containing the molecular sieve after 1 day, (e) weigh the container containing the molecular sieve after 4 days, and (f) calculate the moisture ingress of the container in micrograms of water by subtracting the first day's sample from the fourth day's sample. Preferred moisture ingress rates for moisture-tight containers manufactured according to aspects of the disclosed concepts are in the range of about 200-300 μg of water / day or less. Thus, a "moisture-tight" seal is a sealing engagement that, alone or in combination with additional sealing engagements, serves to make the container "moisture-tight" according to the definition above.

[0027] As used herein, the term "resealable" means that the lid of a container can be opened, reopened, closed, or reclosed multiple times (e.g., more than 10 times) and still retain its moisture-tight properties.

[0028] Referring now in detail to the various figures, in which like reference numerals refer to like parts throughout, FIGS. 1-2B show various views of a container and cap assembly, generally designated 10. The container and cap assembly 10 includes a bottle 12 and a removable, attachable, and secure, attachable screw cap 14. The illustrated bottle 12 is one contemplated type of container that may be used in conjunction with the technology of the present disclosure, although other types of containers are contemplated. It should be understood that when the term "bottle" is used to describe an exemplary embodiment, the broader, more general term "container" may also be used instead. The bottle is optionally made of plastic or glass.

[0029] The bottle 12 can include a body 16 having a base 18 and one or more sidewalls 20 extending upwardly from the base 18 and joining to a rim 22 that surrounds a top opening 24 of the bottle 12. The embodiment shown is cylindrical and thus has a rounded, unitary sidewall 20. However, containers according to the concepts of the present disclosure can be other shapes, for example, a rectangular cube, and thus have two or more single, continuous (e.g., rounded) sidewalls.

[0030] 2A , the rim 22 can include an upper engagement surface 26. The bottle 12 can include a neck 28 including one or more threads 30 for providing threaded engagement with corresponding or complementary threads 32 of the cap 14 when the cap 14 is secured to the bottle 12. The body 16 of the bottle 12 can define an interior space 34 configured to store contents (not shown) therein, such as a plurality of pharmaceutical or nutritional supplement tablets, capsules, or powders, or solid or liquid products in the food, pharmaceutical, or chemical industries. The interior space 34 can be accessed through the opening 24.

[0031] 2A and 2B, the cap 14 may include a base or top 40 and an annular skirt 42 that depends downwardly from the base or top 40 around the periphery of the base or top 40. Optionally, the top 40 may be flat or planar. The skirt 42 may include threads 32 on an interior portion or surface thereof, as described above.

[0032] In one embodiment, cap 14 is optionally made primarily from one or more injection-moldable thermoplastic materials, including, for example, polyolefins such as polypropylene or polyethylene.

[0033] While a child-resistant cap may be desirable in certain applications, it is not required in all applications. Thus, child-resistant and non-child-resistant caps are contemplated. If a child-resistant feature is provided, the child-resistant feature optionally requires two or more unidirectional forces to be applied to the cap to remove it from the container. For example, the cap may require the user to push downward (a first direction) before rotating the cap (a second direction) to remove it from the container. Alternative child-resistant features are also contemplated, as needed.

[0034] Optionally, the cap 14 may include an active polymer component 50 secured to or integral with the underside 52 of the top portion 40. The active polymer component 50 may include a base polymer having one or more active agents intermixed therewith and, therefore, may be referred to herein as an active agent intermixed polymer or intermixed polymer. The active agent in the active polymer component 50 may include an absorbing material, a releasing material, and / or an activating material. Optionally, the active polymer component 50 is a three-phase desiccant intermixed polymer. The active polymer component 50 may be provided in different shapes, volumes, and / or configurations. In the exemplary embodiment shown, the active polymer component 50 is in the form of a solid plug or a generally planar member extending within the interior space of the cap 14.

[0035] In one embodiment, the active polymer component 50 is a single-component desiccant-entrained polymer made from a single piece of material. The entrained polymer, with or without the desiccant or another active agent entrained therein, may include a base polymer (for structure), a desiccant (or other active agent), and optionally a channeling agent. These types of active-entrained polymers and methods for making and using them are disclosed, for example, in Applicant's U.S. Patent Nos. 5,911,937, 6,214,255, 6,130,263, 6,080,350, 6,174,952, 6,124,006, and 6,221,446, as well as U.S. Patent Publication No. 2016 / 0039955, all of which are incorporated herein by reference in their entireties. Optionally, the entrained polymer may be in the form of a loose film or, optionally, thermoformed onto a surface.

[0036] Alternatively, the desiccant may include loose desiccant beads or a bag containing them. While the exemplary embodiments herein reflect an active polymer component 50 attached to the cap 14, it is contemplated that the active agent may be located in other locations and / or positions, such as on the sidewall of the body or neck.

[0037] In embodiments in which each active member contains a desiccant, moisture absorption is desired. However, if moisture absorption is not desired, the active member can contain an alternative activator. For example, in another embodiment, the active member contains a material selected from the group consisting of activated carbon, carbon black, Ketjenblack, and diamond powder. In a further embodiment, the activator comprising one or more layers of the active member contains materials such as absorbing particulates, BaTiO3, SrTiO3, SiO2, Al2O3, ZnO, TiO2, MnO, CuO, Sb2O3, silica, calcium oxide, and ion exchange resins. In yet another embodiment, the absorbent-containing layer of the active member 116 contains two or more types of absorbents. Suitable absorbents are selected to achieve the desired vapor or gas absorption (e.g., absorption of moisture, oxygen, carbon dioxide, nitrogen, or other undesirable gases or vapors) for the desired end use.

[0038] The active member (whether a desiccant, oxygen scavenger, releasing material or component, etc., or a combination thereof) can act, interact, or react with a selected material (e.g., moisture or oxygen). Examples of such action or interaction can include absorption, adsorption (generally, sorption), or release of the selected material. Each active member can be, for example, extruded or molded. Optionally, the active member can be formed in a desired shape or pattern (e.g., on a backing) via an in-line melt adhesive thermal bonding process.

[0039] The active material can include an "active ingredient" in a substrate. The active ingredient (i) can be immiscible with the substrate (e.g., a polymer) and, when mixed and heated with the base polymer and channeling agent, does not melt, i.e., has a melting point higher than the melting point of either the base polymer or the channeling agent, and / or (ii) acts on, interacts with, or reacts with a selected material. The term "active ingredient" can include, but is not limited to, a material that absorbs, adsorbs, or releases a selected material. In accordance with the technology of the present disclosure, the active ingredient can be in the form of particles such as minerals (e.g., molecular sieves or silica gel in the case of desiccants), although the technology of the present disclosure should not be considered limited solely to particulate active agents. For example, in some embodiments, oxygen scavenging formulations can be made from resins that function as activators or as components of activators.

[0040] As used herein, the term "substrate" refers to a component (preferably a polymer) of an incorporated active material other than the active agent that provides the structure of the incorporated material.

[0041] As used herein, the term "base polymer" refers to a polymer having a gas transmission rate that is, optionally, significantly lower than, lower than, or substantially equal to that of the selected material. By way of example, such a transmission rate would be the water vapor transmission rate in an embodiment in which the selected material is moisture and the active ingredient is a water-absorbing desiccant. The primary function of the base polymer is to provide structure for the incorporated polymer. Suitable base polymers can include thermoplastic polymers, such as polyolefins such as polypropylene and polyethylene, polyisoprene, polybutadiene, polybutene, polysiloxane, polycarbonate, polyamide, ethylene-vinyl acetate copolymer, ethylene-methacrylate copolymer, poly(vinyl chloride), polystyrene, polyester, polyanhydride, polyacrylonitrile, polysulfone, polyacrylate, acrylic acid, polyurethane, and polyacetal, or copolymers or mixtures thereof.

[0042] With reference to such a comparison of the moisture vapor transmission rates of the base polymer and the channeling agent, in one embodiment, the channeling agent has a moisture vapor transmission rate at least twice that of the base polymer. In another embodiment, the channeling agent has a moisture vapor transmission rate at least five times that of the base polymer. In another embodiment, the channeling agent has a moisture vapor transmission rate at least ten times that of the base polymer. In yet another embodiment, the channeling agent has a moisture vapor transmission rate at least 20 times that of the base polymer. In yet another embodiment, the channeling agent has a moisture vapor transmission rate at least 50 times that of the base polymer. In yet another embodiment, the channeling agent has a moisture vapor transmission rate at least 100 times that of the base polymer.

[0043] As used herein, the term "channeling agent" or "channeling agents" is defined as a material that is immiscible with a base polymer and has an affinity for transporting gas phase substances at a faster rate than the base polymer. Optionally, the channeling agent can form channels through the entrained polymer when formed by mixing the channeling agent with the base polymer. Optionally, such channels can allow a selected material to permeate through the entrained polymer at a faster rate than through the base polymer alone.

[0044] As used herein, the term "channel" or "interconnected channels" is defined as passages formed by a channeling agent that pass through the base polymer and may interconnect with one another.

[0045] As used herein, the term "contaminated polymer" is defined as a monolithic material formed of at least a base polymer with an active agent and optionally a channeling agent mixed or dispersed throughout. Contaminated polymers therefore include two-phase and three-phase polymers. A "mineral-filled polymer" is a type of contaminated polymer in which the active agent is in the form of a mineral, e.g., mineral particles such as molecular sieves or silica gel. The term "contaminated material" is used herein to connote a monolithic material that includes an active agent mixed into a substrate, which may or may not be a polymer.

[0046] As used herein, the terms "monolithic," "monolithic structure," or "monolithic composition" are defined as a composition or material that does not consist of two or more distinct macroscopic layers or portions. Thus, "monolithic composition" does not include multilayer composites.

[0047] As used herein, the term "phase" is defined as a part or component of a monolithic structure or composition that is uniformly distributed throughout so as to give the structure or composition its monolithic character.

[0048] As used herein, the term "selected material" is defined as a material that can be acted upon by, interact with, or react with an active agent and permeate through the channels of the entrained polymer. For example, in embodiments where a desiccant is used as the active agent, the selected material can be moisture or a gas that can be absorbed by the desiccant. In embodiments where an emissive material is used as the active agent, the selected material can be an agent released by the emissive material, such as moisture, a fragrance, or an antimicrobial agent (e.g., chlorine dioxide). In embodiments where an adsorbent material is used as the active ingredient, the selected material can be a certain volatile organic compound, and the adsorbent material can be activated carbon.

[0049] As used herein, the term "three-phase" is defined as a monolithic composition or structure comprising three or more phases. An example of a three-phase composition according to the disclosed technology may be a mixed polymer formed from a base polymer, an active agent, and a channeling agent. Optionally, the three-phase composition or structure may include an additional phase, such as a colorant.

[0050] The compounded polymer may be a two-phase blend (i.e., a base polymer and an active ingredient without a channeling agent) or a three-phase blend (i.e., a base polymer, an active agent, and a channeling agent). Compounded polymers are described, for example, in U.S. Patent Nos. 5,911,937, 6,080,350, 6,124,006, 6,130,263, 6,194,079, 6,214,255, 6,486,231, 7,005,459, and U.S. Patent Publication No. 2016 / 0039955, each of which is incorporated herein by reference in its entirety.

[0051] The entrained material or polymer includes a substrate (e.g., a polymer) to provide structure, optionally a channeling agent, and an active agent. The channeling agent forms microscopic interconnected channels through the entrained polymer. At least a portion of the active ingredient is contained within these channels such that the channels communicate between the active ingredient and the exterior of the entrained polymer through microscopic channel openings formed on the outer surface of the entrained polymer. The active ingredient can be, for example, any one of a variety of absorbing, adsorbing, or releasing materials, as described in more detail below. While a channeling ingredient is preferred, the technology of the present disclosure broadly encompasses entrained materials that optionally do not include a channeling agent, such as a two-phase polymer.

[0052] In any embodiment, suitable channeling agents may include polyglycols such as polyethylene glycol (PEG), ethylene-vinyl alcohol (EVOH), polyvinyl alcohol (PVOH), glycerin polyamines, polyurethanes, and polycarboxylic acids, including polyacrylic acid or polymethacrylic acid. Alternatively, the channeling agent may be a water-insoluble polymer, such as propylene oxide polymer-monobutyl ether, such as Polyglykol B01 / 240 manufactured by CLARIANT. In other embodiments, the channeling agent may be propylene oxide polymer-monobutyl ether, such as Polyglykol B01 / 20 manufactured by CLARIANT, propylene oxide polymer, such as Polyglykol D01 / 240 manufactured by CLARIANT, ethylene vinyl acetate, nylon 6, nylon 66, or any combination of the foregoing.

[0053] Suitable active ingredients according to the technology of the present disclosure include absorbent materials such as desiccants. When the active ingredient is a desiccant, any desiccant suitable for a given application can be used. Typically, physical adsorption desiccants are preferred for many applications. These can include molecular sieves, silica gel, clay, and starch. Alternatively, the desiccant can be a chemical compound that forms crystals containing water, or a compound that reacts with water to form a new compound.

[0054] Optionally, in any embodiment, the active agent may be an oxygen scavenger, for example, an oxygen scavenging resin formulation.

[0055] 2A and 2B, the cap 14 may include a compressible seal 60 secured to or integral with at least a portion of the underside 52 of the top 40 of the cap 14 to provide a moisture-tight seal between the cap 14 and the bottle 12. Optionally, the compressible seal 60 may be in the shape of a ring that surrounds and optionally contacts the outer annular edge of the active polymer component 50. The compressible seal 60 may be made from an elastomer, such as a thermoplastic elastomer (TPE). The formation of the compressible seal 60 is described in detail below.

[0056] When the cap 14 is secured to the bottle 12 over the opening 24, the compressible seal 60 contacts the upper engagement surface 26 of the rim 22. The engagement between the threads 32 of the cap 14 and the threads 30 on the neck 28 securely secures the cap 14 to the bottle 12, causing the compressible seal 60 to compress as it is pressed firmly against the upper engagement surface 26, thereby creating a moisture-tight seal between the cap 14 and the container 12.

[0057] As shown in FIG. 2B , in one optional embodiment, upon sealing engagement, vertical compression of the compressible seal 60 causes a portion of the seal 60 to elastically and resiliently deform and radially expand into a void 62 defined between the skirt 42 and the compressible seal 60. Due to the presence of the void 62, the compressible seal 60 is not bounded or blocked by any structure on the sides of the void 62. Thus, when the compressible seal 60 is vertically compressed, a portion of the seal 60 can elastically expand or move radially outward (toward the left and right in FIG. 2B ). The further downward compression of the seal 60 occurs, the more of the seal 60 enters the void 62. Thus, the void 62 provides a “living space” for the seal material to radially expand upon engagement. This radial expansion into the void feature helps prevent excessive vertical spring force that might otherwise occur. Such spring force could cause undesirable wear on the threads 30, 32. The radial expansion into the gap feature can also facilitate an increased contact surface area between the respective sealing surfaces of the sealing engagement, which helps provide a more robust seal at the seal engagement site.

[0058] Optionally, the outer radial surface 64 of the compression seal 60 may include a downward slope such that the outer radial surface 64 is oriented slightly radially outward as it extends downward from the lower surface 52 of the top 40 of the cap 14.

[0059] In accordance with the techniques of the present disclosure, the cap 14 may be made in a variety of ways. One method of forming or making the cap 14 includes injection molding. More specifically, a method of forming or making the cap 14 includes multi-shot injection molding.

[0060] 3A-3B, in any embodiment, cap 14 can be made in a three-shot injection molding process. In such a process, as shown in FIG. 3A, the first shot in the molding is the active polymer component 50 (e.g., a desiccant-entrained polymer with a channeling agent). As shown in FIG. 3B, the second shot in the molding is the compressible seal 60 (e.g., a TPE). As shown in FIG. 3C, the third shot is the remainder of the cap (e.g., using a polyolefin material).

[0061] As shown in FIGS. 3A-3B, all steps in the three-shot process involve molding components that create cavities corresponding to the respective portions of the cap 14 being fabricated. For example, all steps may involve the use of a common core 70. The first shot may involve forming the cavities using the common core 70 and an active polymer component molding 72 to produce the active polymer component 50. The first shot is one of melt-entrained polymer (e.g., desiccant plastic) injected at a first gate 74. The first gate 74 may be positioned directly above the melt-entrained polymer. After the first shot, the active polymer component molding 72 may be replaced by a compressible seal molding 76. The second shot is one of molten thermoplastic elastomer material injected at a second gate 78. Optionally, throughout this process, the polymer material in the active polymer component contacts and chemically bonds with the thermoplastic elastomer material. After the second shot, the compressible seal molding 76 is replaced by a cap molding 80. The third shot can be one of molten plastic (e.g., polypropylene or polyethylene) injected at the third gate 82. Optionally, through this process, the cap material comes into contact with and chemically bonds with both the compressible seal material and the active polymer component material. In this way, the three components of the cap 14 are integral with each other in their finished form.

[0062] In at least one embodiment, the disclosed concept eliminates the need for a foil seal or other type of heat sealing material over the opening for storage. The compression seal 60 is configured to provide sufficient closure integrity over the shelf life of the contents of the bottle 12 so that a foil seal or the like is not required.

[0063] Optionally, a tamper-evident feature may be provided on the cap. For example, an integral polymer tamper-evident ring, such as those typically found on water bottles, may be provided. During production, optionally, after the above process is performed and the cap 14 is ejected from the mold, the molded tamper-evident ring may be placed directly onto the cap by a robot. Alternatively, a shrink seal may be provided on or around the cap.

[0064] 4 and 5 illustrate another embodiment of a screw cap 102 of the disclosed technology. The body 104 of the cap 102 can include a generally disk-shaped base 106 and an annular skirt 108 depending downwardly from the periphery thereof. The skirt 108 can include internal threads 110 thereon. The screw cap 102 can form part of a bottle assembly with a bottle 150. The bottle 150 can include a base, a sidewall 152 extending upwardly from the base, and a neck end portion or lip 154 ​​located opposite and distal to the base. The end portion 154 can define an opening leading to the interior of the bottle 150. The internal threads 110 of the body 104 can be configured to threadingly engage corresponding threads on the end portion 154 of the bottle 150.

[0065] 5, the cap 102 optionally includes at least one, and possibly two, spaced apart internal flexible lip seal members 114, 116 depending downwardly from the base 106 and positioned concentrically and internally relative to the annular skirt 108. In one exemplary embodiment, the cap 102 includes two flexible lip seal members 114, 116, each configured to be positioned on opposite sides of the neck of the bottle 150. Further, in one exemplary embodiment, the internal flexible lip seal members 114, 116 advantageously engage an end portion 154 of the neck of the bottle 150 to form a moisture-tight seal.

[0066] 6 and 7 illustrate another embodiment of the screw cap 102 of the disclosed technology. As shown in FIG. 7, the cap 102 may optionally include a seal member 120 located on the base 106 and optionally on the inner surface of the base 106. The seal member 120 may extend substantially around the entire periphery of the base 106. In one exemplary embodiment, the seal member 120 is a thermoplastic elastomer material. As shown in FIG. 6, the base 106 may include a hole 107 extending therethrough and adjacent the periphery of the base 106. The hole 107 provides a mechanism by which the seal member 120 can be molded onto the base 106. FIG. 6 illustrates that a portion of the seal member 120 can be seen through the hole 107 when viewing the cap 102 from the top.

[0067] FIG. 8 is a view similar to that of FIG. 5, but shows a seal member 120 incorporated within the cap 104. The seal member 120 can contact, engage, and / or form a moisture-tight seal with the neck end portion 154 of the bottle 150. In one exemplary embodiment, the seal member 120 is located between the first and second flexible lip seal members 114, 116. Thus, the cap and / or bottle assembly includes three sealing protection points (e.g., between the inner and outer surfaces of the neck, the lip seal members 114, 116, and between the neck end portion 154 and the seal member 120), which can provide the bottle assembly 100 with improved protection against moisture ingress to, for example, but not limited to, a pharmaceutical product contained within the bottle 150.

[0068] 9 and 10 show another embodiment of a bottle assembly 200 according to the technology of the present disclosure. The bottle assembly 200 is substantially similar to the bottle assembly 100 described above. Accordingly, like reference numerals are used to designate like components, and for the sake of brevity and convenience only, certain significant distinctions between the two embodiments will be discussed herein, which is not intended to limit or imply that a particular feature or component is not present in this embodiment.

[0069] 10, the cap 202 can include a single, internal, flexible lip seal member 216. Additionally, the cap 202 can include an annular, shape-retaining projection 218 extending from the base 206 and positioned internally and concentrically with respect to the single lip 216. As shown in FIGS. 9 and 10, the retention projection 218 is not configured to engage the neck of the bottle 250, and the seal member 220 can be positioned between the single lip seal member 216 and the retention projection 218.

[0070] 11 and 12 show another embodiment of a bottle assembly 300 according to the technology of the present disclosure. The bottle assembly 300 is substantially similar to the bottle assembly 100 described above. Accordingly, like reference numerals are used to designate like components, and for the sake of brevity and convenience only, certain significant distinctions between the two embodiments will be discussed herein, which is not intended to limit or imply that a particular feature or component is not present in this embodiment.

[0071] 12, the cap 302 may include a single lip seal member 316 configured to engage the neck of the bottle 350 and form a moisture-tight seal. Additionally, the cap 302 may include an inner surface 307 configured to face the interior of the bottle 350. As shown in FIG. 11, the seal member 320 may have a circular or disk-like shape, and the seal member 320 may be attached to and cover the inner surface 307 of the cap 302.

[0072] 13 and 14 show another embodiment of a bottle assembly 400 according to the technology of the present disclosure. The bottle assembly 400 is substantially similar to the bottle assembly 100 described above. Accordingly, like reference numerals are used to designate like components, and for the sake of brevity and convenience only, certain significant distinctions between the two embodiments will be discussed herein, which is not intended to limit or imply that a particular feature or component is not present in this embodiment.

[0073] As shown in Figure 13, the seal member 420 can include an annular portion 422 and a linear portion 424 extending across the annular portion 422. The annular portion 422 can be located on the underside of the cap 402. As shown in Figure 14, the annular portion 422 engages an end portion 454 of the bottle 450 to form a seal, such as a moisture-tight seal. The linear portion 424 can extend across the cap 402 and below the geometric center of the cap 402.

[0074] 15 and 16 show another embodiment of a cap 502 according to the technology of the present disclosure. The cap 502 is substantially similar to the cap 302 described above. Accordingly, like reference numerals are used to designate like components, and for the sake of brevity and convenience only, certain significant distinctions between the two embodiments will be discussed herein, which is not intended to limit or imply that a particular feature or component is not present in this embodiment.

[0075] The cap 502 may include an annular skirt 508 and at least one retention feature 509. Optionally, the retention feature 509 is in the form of a protrusion extending radially inward from the annular skirt 508. In one embodiment, the protrusion 509 may be formed or may be in the shape of a half dome. The retention feature 509 may be located at or near a free end of the annular skirt 508. Optionally, the retention feature 509 may be located at or near a free end of the annular skirt 508.

[0076] 17-19, the cap 502 shown in FIGS. 15 and 16 may be designed to cooperate with a bottle 550 to form a bottle assembly 500. As shown in FIG. 17, the bottle 550 may include a base 551, a sidewall 552 extending upwardly from the base 551, and a neck end portion 554 located opposite and distal to the base 551. Optionally, the end portion 554 of the bottle 550 may include one or more engaging or retaining features 556. In one embodiment, the engaging or retaining feature 556 may be in the form of a protrusion or stud that extends vertically and / or connects two portions of the threads of the bottle 550. Optionally, the engaging or retaining feature 556 may be in the shape of a half-dome.

[0077] 19 , the retention feature 509 of the cap 502 is configured to contact and / or pass through the engagement or retention feature 556 of the bottle 550 when the cap 502 is attached to the bottle 550. Such interference can form a snap-fit ​​mechanism, a tactile mechanism, and / or an audible mechanism or response. For example, in one embodiment, once the retention feature 509 of the cap 502 is rotated into initial engagement or contact with the engagement or retention feature 556 of the bottle 550, continued rotation of the cap 502 causes the retention feature 509 of the cap 502 to snap past and / or onto the engagement or retention feature 556 of the bottle 550. This movement, and the resulting tactile and / or audible sensation that can be sensed and / or heard by the user, may provide an additional mechanism by which the user knows that the cap 502 is properly and / or fully secured (e.g., sealed) to the bottle 550.

[0078] 20A and 20B show another embodiment of a cap 602 according to the technology of the present disclosure. The cap 602 is substantially similar to the cap 502 described above. Accordingly, like reference numerals are used to designate like components, and for the sake of brevity and convenience only, certain significant distinctions between the two embodiments will be discussed herein, which is not intended to limit or imply that a particular feature or component is not present in this embodiment.

[0079] Cap 602 may include retention feature 609 at a location different from the location of retention feature 509 on cap 602. For example, retention feature 609 is located at or near the vertical midpoint of annular skirt 608 of cap 602. Optionally, retention feature 609 may have a triangular or generally triangular shape in cross section, such as that shown in FIG. 20A . In one embodiment, retention feature 609 may be formed by two linear surfaces that converge at a point. Optionally, the two linear surfaces may form an angle of approximately 60 degrees between them, or optionally, may form an angle of 40-80 degrees between them.

[0080] Additionally, in contrast to the cap 502 of the previous embodiment, the annular skirt 608 of the cap 602 may include a second portion 608b spaced radially outward from the first portion 608a. As a result, the annular skirt 608 may include portions extending in two different vertical planes. The retention feature 609 may be configured to form a snap-fit ​​engagement with a corresponding mating or retention feature on the bottle, such as those shown in FIGS. 17 and 18 .

[0081] 21A and 21B show another embodiment of a cap 702 according to the technology of the present disclosure. The cap 702 is substantially similar to the cap 602 described above. Accordingly, like reference numerals are used to designate like components, and for the sake of brevity and convenience only, certain significant distinctions between the two embodiments will be discussed herein, which is not intended to limit or imply that a particular feature or component is not present in this embodiment.

[0082] Retention feature 709 of cap 702 may be larger, wider, thicker, and / or extend further radially inward from the inner surface of annular sidewall 708 than retention feature 609 of cap 602. Optionally, retention feature 709 may be formed by two linear surfaces that converge at a point. Optionally, the angle between the two linear surfaces may be exactly or approximately 90 degrees. The ends of the horizontal linear surface of the two linear surfaces and the vertical linear surface of the opposing two linear surfaces may have an arcuate shape.

[0083] 22A-22G show another embodiment of a cap 802 according to the technology of the present disclosure. The cap 802 is substantially similar to the cap 702 described above. Accordingly, like reference numerals are used to designate like components, and for the sake of brevity and convenience only, certain significant distinctions between the two embodiments will be discussed herein, which is not intended to limit or imply that a particular feature or component is not present in this embodiment.

[0084] Cap 802 may include one or more recesses, notches, or grooves 880 in a portion of annular skirt 808. Optionally, at least one of the notches 880 may be located on an outer surface of cap 802 and may optionally extend on a first portion 808a of annular skirt 808 or from the first portion 808a to a second portion 808b.

[0085] In one optional embodiment, cap 802 may include a passageway 882 extending therethrough. Optionally, passageway 882 may be sized, shaped, and / or configured to fit at least partially or completely within notch 880. Passageway 882 may optionally extend completely through at least a portion of cap 802, such as, without limitation, through at least a portion of annular skirt 808 and / or a sidewall of cap 802.

[0086] Optionally, passageway 882 can have a generally C-shape, a generally U-shape, and / or a generally L-shape. More specifically, in at least one embodiment, passageway 882 is not circular or cylindrical, but instead extends along two, three, or more axes, at least two of which are perpendicular to one another.

[0087] 20A, 20B, 21A, and 21B, the inclusion of recess 880 and / or passageway 882 is configured to increase structural flexibility in annular skirt 808 and / or sidewall of cap 802. This increased flexibility can facilitate desired interaction of retention feature 809 with an associated portion of the bottle to produce an audible response (e.g., a "click") when cap 802 is rotated relative to the bottle.

[0088] 22E and 22F , in one optional embodiment, the cap 802 and / or skirt may include a tamper-evident feature 884. The tamper-evident feature 884 may take any of a variety of forms. For example, optionally, the tamper-evident feature 884 may be in the form of a tab configured to block and / or engage at least a portion of the bottle 850, such as the engaging or retaining feature 556 described above. As a result, in order to remove the cap 802 from the bottle 850 and / or rotate the cap 802 a predetermined amount relative to the bottle 850, the tamper-evident feature 884 must be at least partially removed, broken, and / or separated from the skirt 808 of the cap 802.

[0089] Optionally, in one embodiment, one or more (e.g., two or four) bridges, links, or extensions 886 can connect the body 888 of the tamper-evident feature 884 to the skirt 808. In one embodiment, as shown in FIG. 22F , each extension 886 can extend parallel to the bottom surface of the skirt 808. However, one or more extensions 886 can be oriented in a different manner, such as perpendicular to the bottom surface of the skirt 808 or at an angle to the bottom surface of the skirt. The body 888 can be rectangular in shape, as shown in FIG. 22F . However, the body 888 is not limited to such a configuration or shape. For example, the body 888 can be oval, circular, square, triangular, etc. Optionally, other than the one or more extensions 886, a gap or space can exist between the body 888 and the remainder of the skirt 808 around the periphery of the body 888.

[0090] In operation, at least one of the extensions 886 is configured to at least partially separate, break, or rupture (from either or both of the body 888 and the skirt 808) when at least a portion of the body 888 of the tamper-evident feature 884 moves sufficiently past or onto a portion of the bottle (such as a protrusion on the neck). Optionally, if the cap 802 is not rotated a sufficient distance or with sufficient force, none of the extensions 886 will rupture and the tamper-evident feature 884 will indicate that the cap 802 has not been opened.

[0091] In one embodiment, at least the body 888 of the tamper evident feature 884 may extend over the first portion 808a of the skirt 808 or from the first portion 808a to the second portion 808b. Optionally, the body 888 may be positioned below the end of the skirt 808 attached to the base and over the opposite free end of the skirt 808. Optionally, the body 888 is positioned a distance away from the second free end of the skirt toward the first end of the skirt.

[0092] These configurations differ from the tamper-evident features of conventional milk cartons, which are located at or beyond the free end of the skirt 808.

[0093] At least a portion of the tamper-evident feature 884, e.g., a portion of its body 888, can extend radially outward beyond the skirt 808. Optionally, unless and until the tamper-evident feature 884 is interrupted or broken, the cap 802 cannot rotate relative to the bottle 850. Once the tamper-evident feature 884 is removed or sufficiently destroyed (e.g., one of the extensions 886 is broken), the cap 802 can be fully and / or completely rotated relative to the bottle 850.

[0094] In another embodiment, tamper evident feature 884 may include a peel-off feature often found on plastic milk cartons. Alternatively, tamper evident feature 884 may be a film or plastic ring that surrounds at least a portion of cap 802 unless and until the film or plastic ring is broken or destroyed when cap 802 is moved a predetermined amount relative to bottle 850.

[0095] The technology of the present disclosure can utilize tamper-evident features, with or without foil seals, that are typically used to enclose the contents of a container and are placed at the top opening of the container. In one embodiment, the tamper-evident features described herein can be used in place of foil seals, which can simplify and / or reduce the cost of the manufacturing and / or filling process while providing the user with insight into whether the contents of the container have been previously accessed. Thus, in such an embodiment, the tamper-evident features of the technology of the present disclosure obviate the need for a traditional foil seal.

[0096] 23A-23C show another embodiment of a cap 902 according to the technology of the present disclosure. The cap 902 is substantially similar to the cap 802 described above. Accordingly, like reference numerals are used to designate like components, and for the sake of brevity and convenience only, certain significant distinctions between the two embodiments will be discussed herein, which is not intended to limit or imply that a particular feature or component is not present in this embodiment.

[0097] One difference from cap 902 is the shape, configuration, and / or extent of notch 980 and passageway 982 as compared to notch 880 and passageway 882 of cap 802. Notch 980 is optionally formed at least in part as a recess in the outer surface of skirt 908. Optionally, the width of the recess is optionally at least slightly less than the width of passageway 982.

[0098] 24A-23D show another embodiment of a cap 1002 according to the technology of the present disclosure. The cap 1002 is substantially similar to the cap 802 described above. Accordingly, like reference numerals are used to designate like components, and for the sake of brevity and convenience only, certain significant distinctions between the two embodiments will be discussed herein, which is not intended to limit or imply that a particular feature or component is not present in this embodiment.

[0099] One difference from cap 1002 is the shape, configuration, and / or extent of passageway 1082 compared to the passageway of cap 802. For example, passageway 1082 may be rotated 90 degrees relative to the orientation of the above-described embodiment. A first segment of passageway 1082 may be located in first portion 1008a of skirt 1008, and a second segment of passageway 1082 may be located in second portion 1008b of skirt 1008. Optionally, the longitudinal axis of the first segment may extend parallel to the longitudinal axis of the second segment.

[0100] The following exemplary embodiments further describe optional aspects of the disclosed technology and are part of this Detailed Description. These exemplary embodiments are not technically claims of the present application, but are presented in a form substantially similar to claims (each having a numerical designation followed by the letter A). The following exemplary embodiments refer to each other in a dependent relationship as "embodiments" instead of "claims."

[0101] 1A. A screw-top bottle cap for a bottle assembly, the bottle cap comprising: a body comprising a base, an annular skirt depending downwardly from a periphery of the base, and at least one internal flexible lip seal member depending downwardly from the base and disposed concentrically and internally with respect to the annular skirt, the annular skirt having internal threads configured to threadingly engage corresponding threads on an exterior portion of the bottle neck; a thermoplastic elastomer sealing member disposed on the inner surface of the base around the entire periphery of the base, the thermoplastic elastomer sealing member configured to engage an end portion of the bottle neck to form a seal; A bottle cap, wherein at least one internal flexible lip seal member is configured to engage an interior or exterior surface of the bottle neck to form a seal.

[0102] 2A. The bottle cap of embodiment 1A, wherein the at least one internal flexible lip seal member includes a first flexible lip seal member and a second flexible lip seal member, each configured to engage and form a seal with an interior or exterior surface of the bottle neck, and a thermoplastic elastomer seal member is disposed between the first flexible lip seal member and the second flexible lip seal member.

[0103] 3A. The bottle cap of embodiment 1A, wherein the at least one internal flexible lip seal member includes a single internal flexible lip seal member, and wherein the body further comprises an annular shape-retaining projection extending from the base and positioned concentrically relative to and internal to the single internal flexible lip seal member, wherein the retention projection is not configured to engage an end portion of the bottle neck, and wherein the thermoplastic elastomer sealing member is positioned between the single internal flexible lip seal member and the retention projection.

[0104] 4A. A bottle cap as described in embodiment 1A, wherein the base has an inner surface configured to face the interior of the bottle when the bottle cap is coupled with the neck of the bottle, the thermoplastic elastomer sealing member is circular, and substantially the entire inner surface of the base faces the thermoplastic elastomer sealing member.

[0105] 5A. A bottle cap according to any one of embodiments 1A-4A, wherein the base has a hole extending therethrough, the hole being a component that allows the seal member to be molded onto the base.

[0106] 6A. A bottle cap as described in embodiment 1A, wherein the thermoplastic elastomer sealing member includes an annular portion and a linear portion extending across the annular portion, the annular portion being disposed on the base around the entire periphery and the linear portion being disposed on the base substantially in the center of the base.

[0107] 1B. A bottle assembly comprising: a bottle having a bottle base; and a sidewall extending from the bottle base and terminating in a neck having an end portion disposed opposite and distal to the bottle base, the neck defining an opening leading to the interior of the bottle, the neck having an outer portion including a thread; and a screw-top bottle cap according to any preceding claim, positioned over the neck such that the internal threads of the skirt threadably engage with the threads on the outer portion of the neck to join the screw-top bottle cap to the bottle, thereby forming the bottle assembly.

[0108] 2B. The bottle assembly of embodiment 1B, wherein a thermoplastic elastomer sealing member engages an end portion of the neck to form a seal, optionally a moisture-tight seal.

[0109] 3B. The bottle assembly of embodiment 1B, wherein at least one internal flexible lip seal member engages with the bottle neck to form a seal.

[0110] 4B. The bottle assembly of embodiment 1B, wherein a thermoplastic elastomer sealing member engages an end portion of the neck to form a first seal, and at least one internal flexible lip sealing member engages the bottle neck to form a second seal, the first seal and second seal together cooperating to provide a moisture-tight seal between the bottle cap and the neck.

[0111] 5B. A bottle assembly according to any of embodiments 1B-4B, wherein the neck has a first retention feature and the annular skirt of the body of the bottle cap has a second retention feature that is coupled to the first retention feature by a snap-fit ​​mechanism.

[0112] 1C. A screw-top bottle cap for a bottle assembly, the bottle cap comprising: a body having a base, and an annular skirt depending downwardly from the periphery of the base, the annular skirt having internal threads configured to threadably engage corresponding threads on an exterior portion of the bottle neck; a thermoplastic elastomer sealing member disposed on a base around the entire periphery, the thermoplastic elastomer sealing member configured to engage an end portion of the bottle neck and form a seal.

[0113] 2C. A bottle assembly comprising: a bottle having a bottle base; and a sidewall extending from the bottle base and terminating in a neck having an end portion disposed opposite and distal to the bottle base, the neck defining an opening leading to the interior of the bottle, the neck having an outer portion including a thread; and the screw-top bottle cap of embodiment 1C, wherein the internal threads of the skirt are positioned on the neck so as to threadably engage with the threads on the outer portion of the neck to join the screw-top bottle cap to the bottle, thereby forming a bottle assembly.

[0114] 3C. A bottle assembly as described in embodiment 2C, wherein a thermoplastic elastomer sealing member engages an end portion of the neck to form a seal, optionally a moisture-tight seal.

[0115] 4C. A bottle assembly according to embodiment 2C or 3C, wherein the neck has a first retention feature and the annular skirt of the body of the bottle cap has a second retention feature that is coupled to the first retention feature by a snap-fit ​​mechanism.

[0116] 1D. A screw cap configured to be removably attachable to a bottle, the screw cap comprising: A screw cap comprising means for producing at least one of an audible response and a tactile response when the cap is rotated relative to the bottle.

[0117] 2D. The screw cap of embodiment 1D, wherein the passage is formed in a portion of the annular skirt of the cap, and the retention feature extends radially inward from the inner surface of the skirt, and the retention feature is configured to generate at least one of an audible response and a tactile response when the cap is rotated relative to the bottle.

[0118] 3D. The screw cap of embodiment 1D or 2D, wherein the tamper-evident feature is formed on or within a portion of the skirt, the tamper-evident feature including at least two extensions connecting the skirt to the base.

[0119] Although the technology of the present disclosure has been described in detail, it will be apparent to those skilled in the art that various changes and modifications can be made therein with respect to specific examples thereof without departing from the spirit and scope thereof. Therefore, it is believed that the technology of the present disclosure is not limited to the specific embodiments disclosed, but is intended to encompass modifications within the spirit and scope of the technology of the present disclosure.

Claims

1. 1. A screw cap configured to be removably attachable to a bottle, the screw cap comprising: a flat base and a seal member disposed on an inner surface of the base; an annular skirt extending downwardly from the base, the skirt having a first end proximate the base and an opposite second free end, the skirt having a first portion proximate the first end and a second portion proximate the second free end, the first and second portions collectively extending the full height of the inner surface of the skirt, the entire inner surface of the second portion being spaced radially outwardly from the entire inner surface of the first portion such that the inner surface of the second portion extends in a different plane from the inner surface of the first portion, the skirt having one or more threads extending radially inward from the inner surface of the skirt and threads at the connection of the first and second portions of the skirt and a retention feature including a protrusion extending radially inward at the second free end of the skirt, the protrusion being fixed relative to the skirt, the retention feature being configured to generate at least one of an audible response or a tactile response when the screw cap is rotated relative to the bottle, the retention feature including a recess formed in an outer wall of the skirt, the recess including a passageway extending through the skirt, the skirt further including a tamper-evident feature, the tamper-evident feature including a body configured to be separable from the skirt, the body being positioned away from the second free end of the skirt toward the first end of the skirt.

2. The screw cap of claim 1 , wherein the projection extends radially inward from the skirt farther than the one or more threads.

3. 3. The screw cap of claim 1 or 2, wherein the protrusion extends between and connects two portions of the one or more threads when the screw cap is attached to the bottle.

4. The screw cap according to any one of claims 1 to 3, wherein the protrusion comprises two linear surfaces that converge at a point.

5. 5. The screw cap of claim 1, wherein the sealing member comprises a thermoplastic elastomer sealing member disposed on the inner surface of the base around the entire periphery of the base, the thermoplastic elastomer sealing member configured to engage an end portion of the neck of the bottle to form a seal.

6. The screw cap of claim 5 further comprising at least one flexible lip seal member depending downwardly from said inner surface of said base and disposed concentrically and inwardly relative to said annular skirt.

7. 7. The screw cap of claim 6, wherein the at least one flexible lip seal member includes a first flexible lip seal member and a second flexible lip seal member each configured to engage and form a seal with one of an interior surface or an exterior surface of the neck of the bottle.

8. The screw cap of claim 7, wherein the thermoplastic elastomer sealing member is disposed between the first flexible lip seal member and the second flexible lip seal member.

9. The screw cap of any one of claims 1 to 8, wherein the tamper-evident feature comprises at least two extensions connecting the body to the remainder of the skirt.

10. The screw cap of claim 9, wherein the at least two extensions are four spaced apart extensions.

11. 11. The screw cap of claim 9 or 10, wherein at least one of the extensions is configured to break when at least a portion of the body of the tamper-evident feature is moved sufficiently beyond or onto a portion of the bottle.

12. 12. The screw cap of any one of claims 1 to 11, wherein the base has a hole extending therethrough, the hole configured to allow the sealing member to be molded onto the base.

13. 1. A screw cap configured to be removably attachable to a bottle, the screw cap comprising: a sealing member disposed on an inner surface of the base; and an annular skirt extending downward from the base, the skirt having a first end proximate the base and an opposite second free end, the skirt having a first portion proximate the first end and a second portion proximate the second free end, the first and second portions collectively extending the entire height of the inner surface of the skirt, the entire inner surface of the second portion being spaced radially outwardly of the entire inner surface of the first portion such that the inner surface of the second portion extends in a different plane from the inner surface of the first portion; a retaining feature including one or more threads extending radially inward from a face and a protrusion extending radially inward at a connection of the first and second portions of the skirt, the protrusion extending radially inward from the skirt further than the one or more threads, the protrusion being fixed relative to the skirt, the retaining feature further including a recess formed in an outer wall of the skirt, the recess including a passageway extending through the skirt, the retaining feature configured to generate at least one of an audible response or a tactile response when the screw cap is rotated relative to the bottle.

14. The screw cap of claim 13 , wherein the passage has a C-shape, a U-shape, or an L-shape.

15. 15. The screw cap of claim 13 or 14, wherein the passage is not circular or cylindrical.

16. The screw cap of any one of claims 13 to 15, wherein the recess and the passage are configured to add structural flexibility to the skirt and facilitate the audible or tactile response.

17. A screw cap according to any one of claims 13 to 16, wherein the recess is positioned away from the free end of the skirt towards the end of the skirt proximate the base.

18. 17. The screw cap of claim 13, wherein the skirt includes a second portion spaced radially outward from the first portion, and wherein at least a segment of the recess is positioned in the second portion and another segment of the recess is positioned in the first portion.

19. 2. The screw cap of claim 1, wherein the tamper-evident feature includes at least two extensions extending from opposite sides of the body and connecting to the remainder of the skirt, the body being rectangular, each of the at least two extensions having a longitudinal axis extending parallel to a bottom surface of the skirt, and wherein a gap exists between the top and bottom surfaces of the body and the skirt.

20. 14. The screw cap of claim 1 or 13, wherein the passage extends along two or more directions, at least two of the two or more directions being perpendicular to each other.

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