Patent Publication Number: US-2021171254-A1

Title: Container Closure With Compartment

Description:
TECHNICAL FIELD 
     The present disclosure relates generally to the construction of containers and, more particularly to the construction of closures for containers. 
     BACKGROUND OF THE DISCLOSURE 
     Infants and individuals who have special dietary needs, are convalescing or who are otherwise vulnerable to sicknesses, can require highly nutritive liquid food products and food supplement products. Being highly nutritive, some of these food products present preferential growth sites for fungi, bacteria and other microbes that could infect or sicken intended recipients. Accordingly, to minimize the risk of sickness and infections, these highly nutritive food products are preferably prepared, maintained and delivered very hygienically and under conditions designed to inhibit microbial growth. For example, the product and the storage containers in which the product is kept can be sterilized and the product packaged into the storage containers under aseptic conditions to remove microbes that could grow in the product. In these aseptic procedures, a food or beverage product is sterilized by quick exposure to ultra-high heat, rapidly cooled to an ambient temperature, and filled into sterilized containers that are then sealed in a commercially sterile environment. However, conditions for packaging, storing and delivering the product should not be so harsh as to damage the food product by destroying its flavor, texture or unduly diminishing its nutritive value. 
     Aseptic packaging techniques typically require that the packaging take place in a sterile environment. Manufacturers commonly package their products in pre-sterilized containers capable of providing a shelf life of 150 days or more. For the aseptic packaging of food products, aseptic fillers generally use FDA (Food and Drug Administration) approved sterilants, meet FDA quality control standards, use sterile production line enclosures or clean rooms, and aseptically treat all packaging material. The food product should also be processed using an “Ultra High Temperature” (UHT) pasteurization process to meet FDA aseptic standards. The packaging material should remain in a sterile environment during filling, closure, and sealing operations. 
     In one example of an aseptic process in which bottles to be used for liquid food storage are sterilized and filed with the liquid food product, the aseptic process applies a hot atomized sterilant, such as hydrogen peroxide spray, onto the interior surface of each container, and subsequently activates and removes the sterilant in drying stations using hot sterile air. Hydrogen peroxide breaks down into water and oxygen, and thus oxidizes and kills microbes such as bacteria within the container. To achieve aseptic sterilization, a minimum container temperature is developed and held for a predetermined period of time (e.g., 131° F. for 5 seconds) after application of the sterilant. After container drying, the residual hydrogen peroxide in the container is below a predetermined level (e.g., about 0.5 PPM (parts per million)). 
     Other container components, such as container closures and products to be stored in the containers can also be aseptically processed or otherwise sterilized. However, microbes may be removed from these other components using different aseptic processes that take account of the difficulty of removing, location, type and quantity of the microbes, the ability of the component to withstand the conditions it may experience during the aseptic process without damage, as well as the speed and cost of aseptic processing. 
     Liquid infant formula is one food that conventionally has been aseptically packaged in bottles and similar containers. It is a manufactured food generally designed and marketed for feeding to babies and infants. Commonly used infant formulas include purified cow&#39;s milk whey and casein as a protein source, a blend of vegetable oils as a fat source, lactose as a carbohydrate source, a vitamin-mineral mix, and other ingredients depending on the manufacturer. In addition, there are infant formulas using soybean as a protein source in place of cow&#39;s milk and formulas using protein hydrolyzed into its component amino acids for infants who are allergic to other proteins. The liquid infant formula ingredients are typically mixed according manufacturer-specific procedures with specific temperatures and durations, after which the mixture can be pasteurized, homogenized, standardized and packaged. 
     Liquid and solid food product has also conventionally been sterilized using retort packaging processes. In these retort processes, food is filled into a pouch, metal can, or other suitable container, sealed, and then heated to extremely high temperatures, rendering the product commercially sterile. When manufacturing infant formula, the infant formula is generally sterilized together with its packaging after it is filled in its retail container. During sterilization, the filled retail containers are heated and cooled to destroy any contained microorganisms. The finished containers can then be packed in cartons and stored for shipping. 
     However, these infant formula products may be missing ingredients that are normally present in natural breast milk, such as the transferrin protein lactoferrin, or that may otherwise be beneficial for the infant, such as probiotics like the lactic add bacterium  Lactobacillus rhamnosus  Gorbach &amp; Goldin (LGG). These missing ingredients can be added as supplements to the infant formula. 
     Some potential supplements are heat sensitive or are otherwise adversely affected by the severe conditions that may be present during aseptic processing and packaging or retort processing after packaging. Exposure to excessive heat can kill the heat sensitive bacterium and diminish the functionality of the heat sensitive protein in the supplement. Adding these supplements can require more difficult and costly aseptic filtration and dosing processes that may increase manufacturing costs and make the product too expensive for needy users. A need exists to improve available packaging techniques for high nutritive liquid food products so that heat sensitive ingredients and supplements can be included while the liquid is rendered shelf-stable, while maintaining the ease for users to prepare the packaged product for consumption. 
     BRIEF SUMMARY OF THE DISCLOSURE 
     Various embodiments relate to aspects of providing a closure for a container that stores a nutritive liquid food product with a heat sensitive supplement. In some embodiments, the closure can include a sealed secondary chamber in which heat sensitive supplements can be stored. A separate first or main chamber in the container can contain the remaining liquid ingredients of the nutritive liquid food product, which can be filled aseptically in the main chamber or sterilized in the main chamber by retort processing. A membrane, such as a metallic foil or polymeric film can be attached across an aperture of the container as a microbe barrier that maintains the sterility of the first chamber&#39;s contents. The closure can be attached to the container as a further barrier and protection for the liquid food product and the heat sensitive supplement in the container assembly. Prior to use, heat sensitive ingredients in the closure&#39;s sealed chamber can be conveniently combined with the nutritive liquid food product and dispensed from the container. After dispensing some of the product the closure can reseal the container to store the remaining product for later use. Some embodiments can include additional features to facilitate convenient preparation of the packaged product for use. 
     In one embodiment, the disclosure provides a container assembly including a container having a first chamber formed from a base wall and at least one sidewall that extends from the base wall to surround the first chamber. The sidewall has an aperture into the first chamber. The container assembly can further include a closure attached to the aperture. The closure has a collar surrounding a passage that extends through the aperture to the first chamber and a hingedly connected lid that can be moved between an open and closed position that occludes the passage. The closure also includes a second chamber separated from the first chamber by a barrier wall that is openable to permit material flow between the first and second chambers. 
     According to one aspect of this embodiment, the first chamber of the container assembly can be sterile. Also, the second chamber of the container assembly can be formed on the collar such that it partially occludes the passage. Additionally the collar can include a spout to facilitate pouring fluid from the container assembly. 
     According to another aspect of this container assembly, the barrier wall of the second chamber can be a removable seal. Alternatively, the second chamber can include a second chamber top wall that is depressible to rupture the barrier wall. Optionally, the barrier wall can be configured to rupture by an increasing fluid pressure in the second chamber generated by depression of the second chamber top wall. In another option the second chamber can include a member coupled to the second chamber top wall that is configured to penetrate the barrier wall when the second chamber top wall is depressed. Further, the container sidewall can include a first male threaded connector surrounding the aperture, and the collar can include a second female threaded connector that can coupled together to attach the collar to the container. 
     According to another aspect of the container assembly, the first chamber can include a liquid infant formula and the second chamber can include a heat sensitive infant formula nutritive supplement. Optionally the heat sensitive infant formula nutritive supplement can be lactoferrin. 
     In another embodiment, the disclosure provides a closure for a container including a collar having a collar wall surrounding a passage. The collar wall extends between a lower opening and an upper opening of the passage and is adapted to sealably couple a periphery of the lower opening to a container aperture. The closure also includes a lid hinged to the collar and movable between a closed position, which covers and seals the collar upper opening, and an open position, which permits a fluid entering the passage from one of the lower and upper opening to flow out of the other opening. The closure further includes a compartment that encloses a chamber and extends from the collar into the passage, the compartment having a barrier wall that seals the chamber from the passage. The barrier wall can be unsealed to expose the chamber to the passage. 
     The chamber can contain any substance that can beneficially be stored separately from the liquid product in the first chamber. Optionally, the chamber can contain a heat sensitive nutritive supplement. Specifically, in some embodiments, the heat sensitive nutritive supplement can be lactoferrin. 
     In alternative closure according to this embodiment, the compartment can include a depressible top wall that a user can depress to unseal the barrier wall. Optionally, the barrier wall can be configured to unseal by rupturing as a result of an increased internal compartment pressure generated when the depressible top wall is depressed. According to an alternative option, the barrier wall can be configured to unseal by rupturing as a result of a member coupled to the depressible top wall penetrating the barrier wall when the depressible top wall is depressed. In a still further alternative, the barrier wall can be a removable seal having a tab that a user can pull to unseal the barrier wall. 
    
    
     
       BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS 
         FIG. 1  is a side cross sectional view of a container assembly according to an embodiment of the present disclosure. 
         FIG. 2A  is a detailed side cross-sectional view of a closure according to one embodiment of the present disclosure. 
         FIG. 2B  is a perspective view of the closure of  FIG. 2A . 
         FIG. 3  is a side cross-sectional view of a closure according to an alternative embodiment of the present disclosure. 
         FIG. 4  is a side cross-sectional view of the closure of  FIG. 3  showing a depressed top wall and a ruptured barrier wall. 
         FIG. 5  is a side cross-sectional view of a closure according to a further embodiment of the present disclosure. 
         FIG. 6  is a side cross-sectional view of the closure of  FIG. 5  showing a depressed top wall and a ruptured barrier wall. 
         FIG. 7  is a top view of a length of one embodiment of a selectively reinforced film. 
         FIG. 8  is a top view of a die cut piece of the length of the selectively reinforced film of  FIG. 7 . 
         FIG. 9  is a side cross-sectional view of a closure according to a further embodiment of the present disclosure. 
         FIG. 10  is a side cross-sectional view of a closure according to yet another embodiment of the present disclosure. 
     
    
    
     DETAILED DESCRIPTION OF THE DISCLOSURE 
     A side cross sectional view of a container assembly  10  according to an embodiment of the present disclosure is shown in  FIG. 1 . The container assembly  10  includes a container  16  having a base wall  12  and container sidewall  4  that extends from the perimeter of base wall  12  to surround a first chamber  1 . It will be understood that if container  16  is cylindrical, sidewall  4  can comprise a single circular wall panel. However, containers that have a polygonal cross section, such as rectangular or hexagonal, can have a sidewall  4  comprised of multiple planar panels. In any event, sidewall  4  surrounds first or primary chamber  1  and forms an aperture  11  through which product can be added to or dispensed from the first chamber  1 . In the embodiment of  FIG. 1 , sidewall  4  narrows to form a neck as it extends towards aperture  11 . 
     A closure  2  is attached at the aperture  11  of the container and includes a collar that surrounds a passage  17 . The collar is formed by collar wall  15  which extends between lower opening  18  and upper opening  5  of passage  17 . Lid  9  is hinged to the collar so that lid  9  can move between a closed position and an open position. In the closed position, lid  9  extends to seal across upper opening  5  and second chamber  7  of the closure  2  to prevent fluid flow into or out of first chamber  1  through upper opening  5 . Chamber  7  extends from collar wall  15  part of the way across passage  17 , but does not completely occlude passage  17  so that a sufficient opening exists for fluid passing through opening  18  and passage  17  to exit through upper opening  5 . Closure  2  further includes a spout  3  to facilitate pouring liquid food product from closure  2 . 
     Container  16 , including base wall  12  and sidewall  4  can be constructed of materials commonly used in similar containers for storing liquid food products, such as metals, polymers and combinations thereof. Suitable polymers can include, for example, polypropylene, high-density polyethylene, low-density polyethylene, polystyrene-acrylonitile, acrylonitile-butadiene-styrene, styrene-maleicanhydride, polycarbonate, polyethylene terephthalate, polyvinylcyclohexane, and blends and/or layers thereof. First chamber  1  of container  16  can be used to store a highly nutritive liquid food product, such as liquid infant formula by aseptic or retort processes. It will be understood that filling first chamber  1  can be performed using conventional liquid filling equipment commonly used in the food and beverage industry. The container  16  and its contents can be sterilized under aseptic or retort processing conditions by heating and subsequently cooling the container  16  and its contents as is known in the art. Once container  16  is filled, a membrane  13  acting as a microbe barrier can be attached across aperture  11  to prevent contamination and loss of sterile conditions of container  16  contents. 
     Closure  2 , including collar wall  15  and lid  9  top wall  6  of second chamber  7  can be constructed of materials commonly used in similar closures. Suitable materials can include polymers, such as polypropylene, high-density polyethylene, low-density polyethylene, polystyrene-acrylonitile, acrylonitile-butadiene-styrene, styrene-maleicanhydride, polycarbonate, polyethylene terephthalate, polyvinylcyclohexane, and blends thereof. Second chamber  7  can be used to aseptically store a nutritive supplement  8  sealed separately from first chamber  1 . As such, second chamber  7  is preferably enclosed by top wall  6  as well as a barrier wall that separates second chamber  7  from passage  17 . 
     Stored nutritive supplement  8  can be a liquid, gel or solid heat sensitive material that would likely deteriorate under the aseptic processing of the fluid in first chamber  1  and that would preferably flow into passage  17  if the barrier wall were ruptured or removed. In some embodiments, nutritive supplement  8  is a probiotic, such as LGG, or a beneficial protein such as the transferrin protein lactoferrin. Because nutritive supplement  8  is filled and stored in closure  2  separately from the liquid food product in container  16 , it can be stored under conditions that minimize microbial growth as compared to the conditions in the first chamber. Accordingly, even substances that are not heat sensitive, but that could reduce microbial growth or otherwise increase shelf life of the overall product can advantageously be stored in the second chamber. 
     It will be understood that according to one option, nutritive supplement  8  can be formulated as a particulate heat sensitive nutritive infant formula supplement. The dry conditions under which supplement  8  can optionally be stored in second chamber  7  inhibits or prevents the growth of microbes. Subsequently, after the first container is filled with the liquid food product under sterile conditions and closed with container seal  13  to maintain sterility, closure  2  with filled second chamber  7  can be mated to container  16  as shown in  FIG. 1 , to form container assembly  10 . 
     Referring now to  FIG. 2A , an alternative embodiment of a closure  20  includes a collar formed by collar wall  42  which extends between lower opening  21  to upper opening  25  to surround passage  43 . Closure  20  also includes a threaded connection  41  on the inner surface of collar wall  42  that faces passage  43 . Lid  29  is hinged to collar wall  42  thereby attaching lid  29  to closure  20  and permitting lid  29  to move between an open and closed position, similar to lid  9  shown in  FIG. 1 . Closure  20  further includes a spout  23  to facilitate pouring liquid food product from closure  20 . 
     Second chamber  27  of closure  20  is formed by top wall  26  and enclosed by a barrier wall. In the embodiment of  FIG. 2A , barrier wall can be a removable seal  22  which can be made from a polymer film, a metallic foil or metalized film, paper, or similar material bonded across an opening in top wall  26 . Together with top wall  26 , removable seal  22  encloses nutritive supplement within second chamber  27 . Removable seal  22  provides a sealed barrier between the second chamber  27  and passage  43 . As further shown in  FIG. 2A , a portion of removable seal  22  can be directly bonded to the opening in top wall  26 , and a remaining tail portion can be folded back on itself to form a tab that extends through upper opening  25  of closure  20 . 
       FIG. 2B  is a perspective view of closure  20  of  FIG. 2A  showing the tab of removable seal  22  protruding through upper opening  25 . When configured in this way, the tab is positioned so that a user can conveniently pull the tab to remove seal  22 . As will be understood by those skilled in the art, the removable seal  22  should be bonded and folded so that when a user pulls on the tab, the tab peels the removable seal  22  away from the opening in top wall  26  to which it is bonded, rupturing the seal and permitting nutritive supplement  28  to flow or fall into passage  43  or further into first chamber  1  of container  16 , where it can combine with the liquid food product. 
       FIG. 3  illustrates another embodiment of a closure  30 . Similar to the embodiment of  FIGS. 2A &amp; 2B , closure  30  includes a collar formed by collar wall  44  which extends between lower opening  31  to upper opening  35  to surround passage  46 . Closure  30  can also include a threaded connection  45  on the inner surface of collar wall  44  that faces passage  46 . Lid  39  is hinged to collar wall  44  thereby attaching lid  39  to closure  30  and permitting lid  39  to move between an open and closed position, similar to lid  9  shown in  FIG. 1 . Closure  30  can further include a spout  33  to facilitate pouring liquid food product from closure  30 . 
     Second chamber  37  of closure  30  is formed by top wall  36  and enclosed by a barrier wall. In the embodiment of  FIG. 3 , barrier wall can be a seal  32  which can be made from a polymer film, a metallic or metalized foil, paper, or similar material. As shown in  FIG. 4 , seal  32  can be designed to rupture or break open so that the nutritive supplement  38  stored in second chamber  37  can be readily discharged into passage  46  to mix with a liquid food product. In this embodiment, top wall  36  includes at least one portion that is deformable, as shown in  FIG. 4 . Preferably, the deformable portion of the top wall  36  can be resiliently deformed by a user pressing on an external surface of the sidewall using a finger. 
     When pressed by a user, top wall  36  should be depressed significantly so as to compress the contents and increase the pressure within second chamber  37 . At the deformable portion, top wall  36  should be sufficiently resilient so as not to crack or rupture when depressed, yet sufficiently deformable under the force of a user&#39;s finger to generate the desired pressure increase in the second chamber  37 . Preferably, seal  32  should not be so readily deformable as top wall  36  and should present a relatively unyielding barrier against which internal pressure of second chamber  37  can build. However, seal  32  should be designed to break and rupture rapidly, and reasonably predictably, when a desired internal pressure is reached, thereby readily ejecting the pressurized contents of second chamber  37 . 
       FIG. 5  illustrates yet another embodiment, which is similar to closure  30  of  FIGS. 3 and 4 . Unlike closure  30 , however, closure  50  of  FIG. 5  and  FIG. 6  includes a member  60  which is coupled at one end to a deformable portion of top wall  56  of closure  50 . According to one embodiment, the free end of member  60  that is not coupled to top wall  56  can include a sharp edge or point, so that as top wall  56  is depressed and pressure builds within second chamber  57 , the free end of member  60  begins to penetrate a barrier wall. Here the barrier wall can be a seal  52  which can be made from a polymer film, a metallic foil or metalized film, paper. When top wall  56  is sufficiently depressed and pressure has built sufficiently within second chamber  57 , member  60  ruptures barrier wall  52  and discharges the nutritive supplement contents  58  of second chamber  57  into the passage of closure  50 . Nutritive supplement  58  can then fall through lower opening  51  to mix with the liquid in an attached container. The mixture can be discharged by flowing back through lower opening  51  and upper opening  55  to be dispensed. 
     To facilitate predictable and effective rupturing or breaking so that the contents of second chamber are easily ejected, the barrier wall of the various embodiments can be selectively reinforced. The film or foil of the barrier wall can have a patterned coating that adds additional thickness, strength or toughness to the coated areas, leaving the uncoated areas more easily rupturable by comparison. Foils or films used in the barrier wall can be metallic foils, paper, or polymer films, such as polypropylene, polyethylene terephthalate (PET), nylon, polyethylene and cast polypropylene, for example. Foils or films can be made of a combination of these materials that are mixed together or laminated to form the base foil or membrane material. The base foils or films can further be metalized or coated, for example, by applying a polymeric or resinous material by printing, coating, spraying or hot stamping and may bond through cooling, curing (such as ultra violet curing) or drying. Patterned masks on the film surface can be used limit the film surfaces on which the coating is deposited. 
       FIG. 7  shows one embodiment of how such a portion of selectively reinforced film or foil  70  can be made. A mask can be placed onto an exposed surface of a length of base, uncoated foil or polymeric film  71 . The mask is patterned so as to cover the surfaces of the base foil or polymeric film  71  that are to remain uncoated. The masked base foil or polymeric film  71  is subject to the application process so that a selected material is deposited onto the exposed surfaces of the masked base foil or polymeric film  71  which, in  FIG. 7 , is illustrated by the shaded areas. Once the deposition process is completed, the mask can be removed to provide a selectively reinforced foil or film  70  with a reinforcing coating  72  (depicted by the shaded areas of  FIG. 7 ) and the more easily ruptured unreinforced areas  73  (depicted by the unshaded portions). Repeating patterns of reinforcing coating  72  and unreinforced areas  73  can thus be made along the length of the foil or film  70  to facilitate continuous production along a production line. Individual based wall pieces can be marked (depicted by dotted lines  75 ) along the length of the web and die cut into individual pieces  76  for use as barrier walls. It will be understood that similar reinforcement coatings can be made on base films and foils by other processes, such as printing, spraying and laminating the reinforcement coating material onto the base film or web. The reinforcement coating can be formed of polymers, resins, fibers or other metals. 
       FIG. 9  presents a further embodiment in which a closure  60 , including a lid  61  connected by hinge  63  to collar  62 , has a view window  69  that permits a user to view inside closure  60  to see a top wall  67  of second chamber  66 . In the embodiment of  FIG. 9 , view window  69  is formed on the top of lid  61 . However, the precise placement of view window  69  is not critical so long as the user can view at least a portion of sidewall to confirm that it has not been depressed, indicating that the second chamber likely contains undispensed nutritive supplement  68 , and that the contents of the container assembly  10  are likely fresh and unused. Closure  77  can further include a paper or polymer film label or wrapping  65  covering closure  77  with the exception of the view window  69 . 
     To facilitate seeing through view window  69 , view window  69  can be made from a transparent polymer. Optionally view window  69  can be made the same polymer material as closure  60  but without dyes or other materials that may make the material of view window  69  opaque. As a further option, view window  69  can have a thinner cross section to enhance its transparency or can even be an opening in the outer wall of the closure that is covered with a clear label. As with the closures of the other embodiments, the second chamber can include a barrier wall  64  that can be a rupturable or removable seal. Closure  60  is shown attached to a threaded connection at an opening defined by container sidewall  4 . Container sidewall  4  defines a first chamber  1  of the container. It will be understood that view window  69  of the present embodiment can similarly be applied to other embodiments of the closure and container assembly described herein. Similar to the embodiment of  FIG. 1 , the aperture or opening to first chamber  1  can be sealed by a container seal  74  attached across the opening of first chamber  1 . 
     Referring now to  FIG. 10 , a container assembly  10  includes a container  16  attached to closure  80 . Closure  80  includes a lid  81  connected to collar  82  via a living hinge  83  as can be employed in the other embodiments described herein. Container wall  4  surrounds first chamber  1  and narrows to form a neck  93  which defines an opening  95  to the first chamber  1 . A container thread  92  can be formed on the outer circumferential surface of the neck  93  to mate with a complementary collar thread  91  on the inner surface of collar  82 , as shown in  FIG. 10 . Living hinge  83 , which can be made from the same material as collar  82  and lid  81 , permits the lid to move from a closed position (as shown in  FIG. 10 ), to an open position when pouring liquid food product from first chamber  1 . 
     A lower edge of lid  81  opposite living hinge  83  forms a lid lip  89  having a cam or protrusion designed to engage an opposing cam, protrusion or recess in a collar lip  90  as lid  81  is rotated to a closed position to snap lid  81  shut against collar  82 . Collar lip  90  extends from an upper edge of collar  82  opposite living hinge  83 . By engaging with each other, lid lip  89  and collar lip  90  can hold lid  81  in a closed position over collar  82 . But it should be understood lips  89  and  90  are just one exemplary method of holding lid  81  closed and that other closing and locking mechanisms known in the art can be used instead of or in addition to the mechanisms described. 
     First chamber  1  can be filled with a desired liquid product as previously described. Once first chamber  1  is filled, closure  80  can be attached to container  16  via container thread  92  of neck  93  to seal opening  95  and prevent microbes and other contaminants from entering first chamber  1 . Container seal  84  is attached to container  16 , as shown in  FIG. 10 , to seal across container opening  95  as a barrier to microbes or oxygen from entering or water vapor from exiting, where such microbes, oxygen or water vapor have managed to enter the space between lid  81  and collar  82 , by for example, passing through small gaps between the lower edge of lid  81  and the upper edge of collar  82 . 
     In the embodiment of  FIG. 10 , a second chamber formed by sidewall  86  sealed against barrier wall  85  is disposed within a lid chamber  87  of lid  81 . Lid chamber  87  is a cavity that extends through lid  81  between a top wall  97  and a bottom wall  97 . The second chamber can include nutritive supplement  88 . Nutritive supplement  88  can be a probiotic, such as LGG, or a beneficial protein such as the transferrin protein lactoferrin. Nutritive supplement  88  can be more specifically formulated as a particulate heat sensitive nutritive infant formula supplement. Top wall  86  and barrier wall  85  can comprise similar materials and structures of the sidewalls and barriers of any of the other previously described embodiments. However, in this embodiment, portions of top wall  86  or barrier wall  85  are firmly attached to lid chamber  87  so that when the contents of the second chamber are dispensed, the remnants of the barrier wall  85  and sidewall  86  remain attached to the lid chamber  87  and sidewall provides a continuous seal across lid chamber  87 . 
     To mix and dispense the contents of the container assembly  10  of  FIG. 10 , a user unscrews closure  80  to remove it from container  16  and expose container seal  84 . The user then peels away container seal  84  to unseal container  16  and replaces the closure  80 . Next, user discharges nutritive supplement  88  from the second chamber by depressing sidewall  86 . It should be understood that second chamber&#39;s recessed position within lid chamber  87  can provide some protection from inadvertent discharge of the second chamber during manufacture, shipment and storage. Accordingly, discharging the contents of second chamber may require a user to insert a finger into the lid chamber  87  to depress top wall  86  to rupture barrier wall  85  as described in other embodiments. With barrier wall  85  ruptured, nutritive supplement  88  can be discharged though collar orifice  94  and opening  95  to mix with liquid in the first chamber  1 . To dispense the mixture from the container assembly  10 , the user pulls lid  81  open, overcoming the resistance of the snap fitting lid lip  89  to disengage it from collar lip  90  permitting the mixture to flow out through opening  95  and collar orifice  94  when poured from the container  16 . 
     Thus, although there have been described particular embodiments of the present disclosure of a new and useful container and closure, it is not intended that such references be construed as limitations upon the scope of this disclosure except as set forth in the following claims.