RESEALABLE CAN CLOSURE SYSTEM

Abstract
Resealable containers comprising a closure system comprising a fixed element and a movable closure element are disclosed. The containers may be constructed to be resealable and improve sanitary conditions of a dispensing aperture and allow for easier opening with the ability to be resealed, over a conventional container. Methods of manufacturing the resealable container and components thereof are also disclosed.
Description
SUMMARY OF THE DISCLOSURE

In accordance with an aspect, there is provided a closure system for sealing and resealing a container. The closure system may include a fixed element including a can end having a first aperture and a second aperture spaced laterally apart from the first aperture. The fixed element may be constructed and arranged to be secured to the container. The closure system may include a movable closure element. The movable closure element may include a top cover including a lever portion, a slider portion, and a plug. The slider portion may be constructed and arranged to be engaged at least partially with the first aperture of the fixed element. The top cover may cover the first aperture of the fixed element and the plug may fit in the second aperture of the fixed element in a first position. The movable closure element may include a sealing portion including a stem connected to the lever portion. The stem may be constructed and arranged such that, as the lever portion is lifted and the plug is removed from the second aperture of the fixed element, the sealing portion moves in a downward direction away from the fixed element to a predetermined distance from a bottom surface of the fixed element. As the top cover is moved laterally from the first aperture of the fixed element to the second aperture of the fixed element, the sealing portion may move laterally at the predetermined distance with the top cover to expose the first aperture.


In some embodiments, at the first position the top cover covers the first aperture, the lever portion is resting on and secured to the slider portion and the sealing portion is in contact with the bottom surface of the fixed element.


In some embodiments, at a second position, the top cover covers the first aperture, the lever portion is lifted from the slider portion to remove the plug from the second aperture and the sealing portion is spaced a predetermined distance from the bottom surface of the fixed element.


In some embodiments, at a third position, the top cover and the sealing portion expose the first aperture of the fixed element and the sealing portion is spaced a predetermined distance from the bottom surface of the fixed element.


In some embodiments, at a fourth position, the top cover and the sealing portion expose the first aperture of the fixed element, the lever portion is lowered towards the slider portion, and the sealing portion is in contact with the bottom surface of the fixed element.


In some embodiments, at a fifth position, the top cover and the sealing portion expose at least a portion of the first aperture of the fixed element, the lever portion is lifted relative to the slider portion, and the sealing portion is spaced a predetermined distance from the bottom surface of the fixed element.


In some embodiments, at a sixth position, the top cover and sealing portion cover the first aperture of the fixed element, and the sealing portion is spaced a predetermined distance from the bottom surface of the fixed element.


In some embodiments, at a seventh position the top cover and sealing portion cover the first aperture of the fixed element, the lever portion is lowered to connect to the slider portion and insert the plug into second aperture, and the sealing portion is in contact with the bottom surface of the fixed element.


In some embodiments, the second aperture may be incorporated into a protruding shaft extending above a top surface of the fixed element. The protruding shaft may extend about 1 mm to about 5 mm above top surface of the fixed element. In certain embodiments, the protruding shaft may guide the top cover when in motion. In other embodiments, the protruding shaft may limit the lateral motion of the top cover.


In some embodiments, the fixed element may have a thickness of about 0.208 mm to about 0.750 mm.


In some embodiments, the first aperture may have at least one pair of parallel sides.


In some embodiments, the lever portion and slider portion may be operably coupled to form a hinge.


In particular embodiments, the slider portion may include a plurality of mating features to secure the top cover to the fixed element. The plurality of mating features of the slider portion may guide the lateral motion of the top cover. For example, the plurality of mating features may be snap hooks having a portion that contacts the periphery of the first aperture to guide the lateral motion of the top cover.


In some embodiments, the slider portion comprises an elongated slot dimensioned to permit sliding against the protruding shaft.


In some embodiments, the lever portion may include a stem aperture adapted to receive the stem of the sealing portion. The stem of the sealing portion further may include a pin at a free end adapted to fit into the stem aperture of the lever portion. The sealing portion may include a base connected orthogonally to the stem and a polymeric seal at the periphery of the base.


In some embodiments, the stem may be hinged to the sealing portion. The sealing portion may include a support operatively coupled to a bottom surface of the base.


In some embodiments, at least one of the top cover and the sealing portion may be made of a material that is compatible with the fixed element. For example, the lever portion and the slider portion may be made from a metal, e.g., aluminum or an alloy thereof. In some embodiments, the plug and the sealing portion are made of a polymeric material. In general, the total weight of the polymeric material forming the plug and sealing portion is less than 2.5 grams. For example, the sealing portion may be made of two or more different polymeric materials. In particular embodiments, a body of the sealing portion is made from a first polymeric material and a seal of the sealing portion is made from a second polymeric material, the second polymeric material having a greater Shore hardness than the first polymeric material. In this configuration, the plug and the seal of the sealing portion may be made from the same polymeric material.


In some embodiments, the plug, when inserted into the second aperture, maintains a seal.


In some embodiments, the lever portion may be constructed and arranged to secure the sealing portion in a resting or sealing position.


In further embodiments, the closure system may include a tamper-proof seal in contact with the lever portion and fixed element.


In any embodiment of a closure system disclosed herein, the closure system, when connected to a container body, may be able to withstand an internal pressure up to about 6.8 bar.


In accordance with an aspect, there is provided a method of manufacturing a resealable container. The method may include providing a container body. The method may include providing a closure system connectable to the container body. The closure system may include a fixed element including a can end comprising a first aperture and a second aperture spaced laterally apart from the first aperture where the fixed element is constructed and arranged to be secured to the container. The closure system may include a movable closure element. The movable closure element may include a top cover comprising a lever portion, a slider portion, and a plug, the slider portion constructed and arranged to be engaged at least partially with the first aperture of the fixed element. The top cover may cover the first aperture of the fixed element and the plug may fit in the second aperture of the fixed element in a first position. The movable closure element may include a sealing portion including a stem connected to the lever portion. The stem may be constructed and arranged such that, as the lever portion is lifted and the plug is removed from the second aperture of the fixed element, the sealing portion moves in a downward direction away from the fixed element to a predetermined distance from a bottom surface of the fixed element, and as the top cover is moved laterally from the first aperture of the fixed element to the second aperture of the fixed element, the sealing portion is moved laterally at the predetermined distance with the top cover and the first aperture of the fixed element is exposed. The method additionally may include attaching the closure system to the container body, thereby manufacturing the resealable container.


In accordance with an aspect, there is provided a method of providing a closure system attachable to a container. The method may include providing a fixed element including a can end having a first aperture and a second aperture spaced laterally apart from the first aperture. The fixed element may be constructed and arranged to be secured to the container. The method may include providing a movable closure element. The movable closure element may include a top cover including a lever portion, a slider portion, and a plug. The slider portion may be constructed and arranged to be engaged at least partially with the first aperture of the fixed element. The top cover may cover the first aperture of the fixed element and the plug may fit in the second aperture of the fixed element in a first position. The movable closure element may include a sealing portion comprising a stem connected to the lever portion. The stem may be constructed and arranged such that, as the lever portion is lifted and the plug is removed from the second aperture of the fixed element, the sealing portion moves in a downward direction away from the fixed element to a predetermined distance from a bottom surface of the fixed element, and as the top cover is moved laterally from the first aperture of the fixed element to the second aperture of the fixed element, the sealing portion is moved laterally at the predetermined distance with the top cover and the first aperture of the fixed element is exposed.


In further embodiments, the method may include providing instructions to assemble the closure system from the fixed element and the movable closure element. The assembly instructions may include connecting the lever portion and the slider portion to form the top cover. The assembly instructions may include connecting the top cover to the fixed element. The assembly instructions further may include connecting the sealing portion to the lever portion by passing the stem through a bottom of the fixed element and an aperture on the top cover and into a stem aperture of the lever portion.


In accordance with an aspect, there is provided a closure system for sealing and rescaling a container. The closure system may include a fixed element and a movable closure element. The fixed element may include a can end, e.g., a standard can end. The can end may include a first aperture and a protruding shaft comprising a second aperture spaced laterally apart from the first aperture. The fixed element may be constructed and arranged to be secured to the container. The movable closure element may include a top cover and a sealing portion. The top cover may include a lever portion, a slider portion, and a plug. The lever portion and slider portion may be constructed and arranged to be engaged at least partially with the first aperture of the fixed element and the protruding shaft of the fixed element to permit lateral movement of the top cover along at least a portion of the first aperture when the lever portion is engaged. The top cover may cover the first aperture of the fixed element and the plug may fit in the second aperture of the protruding shaft in a first position. The sealing portion may include a stem connected to the lever portion. The stem may be constructed and arranged such that, as the lever portion is lifted and the plug is removed from the second aperture of the protruding shaft, the sealing portion moves in a downward direction away from the fixed element to a predetermined distance from a bottom surface of the fixed element. As the top cover is moved laterally from the first aperture of the fixed element to the second aperture of the fixed element, the sealing portion may be moved laterally at the predetermined distance with the top cover and the first aperture of the fixed element is exposed.


In some embodiments, at the first position the top cover, i.e., the lever portion and slider portion, may cover the first aperture, the lever portion may rest on and be secured to the slider portion and the sealing portion may be in contact with the bottom surface of the fixed element.


In some embodiments, at a second position, the top cover, i.e., the lever portion and slider portion, may cover the first aperture, the lever portion may be lifted from the slider portion to remove the plug from the second aperture in the protruding shaft, and the sealing portion may be spaced a predetermined distance from the bottom surface of the fixed element.


In some embodiments, at a third position, the top cover, i.e., the lever portion and the slider portion, and the sealing portion may expose the first aperture of the fixed element and the sealing portion may be spaced a predetermined distance from the bottom surface of the fixed element.


In some embodiments, at a fourth position, the top cover, i.e., the lever portion and the slider portion, and the sealing portion may expose the first aperture of the fixed element, the lever portion may be lowered towards the slider portion, and the sealing portion may be in contact, e.g., partial contact, with the bottom surface of the fixed element.


In some embodiments, at a fifth position, the top cover, i.e., the lever portion and the slider portion, and the sealing portion may expose at least a portion of the first aperture of the fixed element, the lever portion may be lifted relative to the slider portion, and the sealing portion may be spaced a predetermined distance from the bottom surface of the fixed element.


In some embodiments, at a sixth position, the top cover, i.e., the lever portion and the slider portion, and sealing portion may cover the first aperture of the fixed element and the sealing portion may be spaced a predetermined distance from the bottom surface of the fixed element.


In some embodiments, at a seventh position the top cover, i.e., the lever portion and the slider portion, and sealing portion cover the first aperture of the fixed element, the lever portion is lowered to connect to the slider portion and insert the plug into the second aperture in the protruding shaft of the fixed element, and the sealing portion is in contact with the bottom surface of the fixed element.


In some embodiments, the first aperture may have at least one pair of substantially parallel sides.


The lever portion and the slider portion may be separate components, e.g., that are mated together using a plurality of mating features. Alternatively, the lever portion, the slider portion, and the plug may be parts of a single component, e.g., connected by a hinge or other similar connection. In some embodiments, the lever portion and the plug are part of a single component.


In some embodiments, the lever portion may include a hinge, e.g., a living hinge, that divides the lever portion into a fixed part and a movable part. In certain embodiments, at least one of the fixed part of the lever portion and slider portion is constructed and arranged to at least partially secure the top cover to the fixed element. For example, the fixed part of the lever portion may include a plurality of mating features to secure the lever portion to the slider portion. The plurality of mating features of the fixed part of the lever portion may serve an additional function, e.g., by contacting a periphery of the first aperture to guide sliding of the top cover. In specific embodiments, the plurality of mating features may include snap hooks, e.g., the hooks contact the periphery of the first aperture of the fixed element. In some embodiments, the plug may be incorporated into the movable part of the lever portion. In further embodiments, the movable part of the lever portion may include a retention pin.


In some embodiments, at least one of the top cover and the sealing portion is made of a material that is compatible with fixed element. In some embodiments, at least one of the lever portion, slider portion, plug, and sealing portion is made of a polymeric material. The total weight of polymeric material in the closure system may, for example, be less than 2.5 grams.


In some embodiments, the slider portion may include an elongated slot dimensioned to permit sliding against the protruding shaft of the fixed element.


In some embodiments, the sealing portion may include a base connected orthogonally to the stem and a polymer seal, e.g., a polymer O-ring, at the periphery of the base. The stem of the sealing portion may include an aperture at a free end. In specific embodiments, the aperture of the stem may be constructed and arranged to be secured to the movable part of the lever portion by the retention pin of the lever portion, e.g., the movable part of the lever portion. In some embodiments, the stem of the sealing portion may include a hinge, e.g., at least one hinge. In further embodiments, the sealing portion may include a support operatively coupled to a bottom surface of the base. The support may be constructed and arranged to increase the structural rigidity of the sealing portion and to limit compression of the sealing portion, i.e., the polymeric O-ring of the sealing portion, when engaged against the bottom surface of the fixed element.


In some embodiments, the lever portion may be constructed and arranged to secure the sealing portion in a resting, i.e., sealing, position, e.g., engaged against the bottom surface of the fixed element.


In further embodiments, the closure system may include a tamper evident, e.g., tamper-proof, feature disposed on or operatively attached to one or more of the lever portion or fixed element.


In accordance with an aspect, there is provided a closure system for sealing and resealing a container. The closure system may include a fixed element constructed and arranged to be secured to the container and a movable closure element. The fixed element may include a can end. The can end may include a first aperture and a protruding shaft spaced laterally apart from the first aperture. The movable closure element may include a top cover and a sealing portion. The top cover may include a lever portion and slider portion. The lever portion and slider portion may be constructed and arranged to be mated together. The lever portion may include a plug dimensioned to fit into an opening in the protruding shaft such that in a first position, the plug is disposed within the opening in the protruding shaft and the top cover is disposed over the first aperture. The sealing portion may include a stem connected to the lever portion. The sealing portion may be disposed below the fixed element and constructed and arranged such that, at the first position, a top surface of the sealing portion is in contact with a bottom surface of the fixed element to cover the first aperture.


In accordance with an aspect, there is provided a closure system for sealing and resealing a container. The closure system may include a fixed element and a movable closure element. The fixed element may include a can end. The can end may include a first aperture and a protruding shaft comprising a second aperture spaced laterally apart from the first aperture. The movable closure element may include a top cover disposed over the first aperture and a sealing portion. The top cover may include a lever portion, a slider portion, and a plug. The lever portion and slider portion may be constructed and arranged to be engaged with the protruding shaft of the fixed element to permit lateral movement of the top cover along the slider portion. The plug may be constructed and arranged to act as a valve when removed from the second aperture of the protruding shaft. The sealing portion may include a stem connected to the lever portion. The stem may be constructed and arranged such that, as the lever portion is lifted and the plug is removed from the second aperture of the protruding shaft, the scaling portion moves in a downward direction away from the fixed element, permitting the top cover to be laterally moved along the slider portion to expose at least a portion of the first aperture.


In accordance with an aspect, there is provided a resealable container. The resealable container may include a container body and any embodiment of a closure system disclosed herein.


In accordance with as aspect, there is provided a method of manufacturing a resealable container. The method may include providing a container body. The method may include providing a closure system connectable to the container body. The method further may include attaching the closure system to the container body, thereby manufacturing the resealable container. The provided closure system may include a fixed element and a movable closure element. The fixed element may include a can end, e.g., a standard can end. The can end may include a first aperture, a second aperture spaced laterally apart from the first aperture. The can end may include a protruding shaft that comprises the second aperture of the can end. The fixed element may be constructed and arranged to be secured to the container. The movable closure element may include a top cover and a sealing portion. The top cover may include a lever portion, a slider portion, and a plug. The lever portion and slider portion may be constructed and arranged to be engaged at least partially with the first aperture of the fixed element and the protruding shaft to permit lateral movement of the top cover along at least a portion of the first aperture when the lever portion is engaged. The top cover may cover the first aperture of the fixed element and the plug may fit in the second aperture of the protruding shaft in a first position. The scaling portion may include a stem connected to the lever portion. The stem may be constructed and arranged such that, as the lever portion is lifted and the plug is removed from the protruding shaft, the scaling portion moves in a downward direction away from the fixed element to a predetermined distance from a bottom surface of the fixed element. As the top cover is moved laterally from the first aperture of the fixed element to the second aperture of the fixed element, the scaling portion may be moved laterally at the predetermined distance with the top cover and the first aperture of the fixed element is exposed.


In accordance with an aspect, there is provided a method of providing a closure system attachable to a container. The method may include providing a fixed element of the closure system. The provided fixed element may include a can end, e.g., a standard can end. The can end may include a first aperture and a protruding shaft comprising a second aperture spaced laterally apart from the first aperture. The fixed element may be constructed and arranged to be secured to the container. The method may include providing a movable closure element of the closure system. The provided movable closure element may include a top cover and a sealing portion. The top cover may include a lever portion, a slider portion, and a plug. The lever portion and slider portion may be constructed and arranged to be engaged at least partially with the first aperture of the fixed element and the protruding shaft to permit lateral movement of the top cover along at least a portion of the first aperture when the lever portion is engaged. The top cover may cover the first aperture of the fixed element and the plug may fit in the second aperture of the protruding shaft of the fixed element in a first position. The sealing portion may include a stem connected to the lever portion. The stem may be constructed and arranged such that, as the lever portion is lifted and the plug is removed from the second aperture of the protruding shaft of the fixed element, the sealing portion moves in a downward direction away from the fixed element to a predetermined distance from a bottom surface of the fixed element. As the top cover is moved laterally from the first aperture of the fixed element to the second aperture of the fixed element, the sealing portion may be moved laterally at the predetermined distance with the top cover and the first aperture of the fixed element is exposed.


In further embodiments, the method may include providing instructions, e.g., to an end user, e.g., a manufacturer, to assemble the closure system from the fixed element and the movable closure element. The assembly instructions may include instructions to connect the lever portion and the slider portion to form the top cover. The assembly instructions may include instructions to connect the top cover to the fixed element. The assembly instructions further may include instructions to connect the sealing portion to the lever portion by passing the stem through the bottom surface of the fixed element and onto a retention pin of the lever portion.


In accordance with an aspect, there is provided a closure system for sealing and resealing a can. The closure system may include a fixed element comprising a dispensing aperture and a vent aperture. The closure system may include a top cover disposed over the dispensing aperture and the vent aperture and a sealing portion disposed beneath the fixed element. The top cover may include a seal that fits within the vent aperture when the top cover is closed. The top cover may permit the vent aperture to be opened such that the top cover and the sealing portion can be slid together to expose the dispensing aperture.


In some embodiments, the seal is operably coupled to a movable portion of the top cover, e.g., a lever portion. In some embodiments, the seal is made from a material permitting formation of a hermetic seal.


Other advantages, features, and objects of the disclosure will become apparent from the following detailed description of the disclosure when considered in conjunction with the accompanying drawings.





BRIEF DESCRIPTION OF THE DRAWINGS

Certain illustrative examples are described below with reference to the accompanying figures in which:



FIG. 1A illustrates an example of a top plan view of a can end, in accordance with certain examples.



FIG. 1B illustrates a top perspective view of a can end, in accordance with certain examples;



FIG. 1C illustrates a side view of a can end, in accordance with certain examples;



FIG. 1D illustrates a cross-section view of a can end taken along section line 1D in FIG. 1A, in accordance with certain examples;



FIG. 1E illustrates an example of a bottom plan view of a can end, in accordance with certain examples;



FIG. 1F illustrates an example of a bottom perspective view of a can end, in accordance with certain examples;



FIG. 2A illustrates a top plan view of a lever portion of a top cover, in accordance with certain examples;



FIG. 2B illustrates a top perspective view of a lever portion of a top cover, in accordance with certain examples;



FIG. 2C illustrates a front end view of a lever portion of a top cover, in accordance with certain examples;



FIG. 2D illustrates a side view of a lever portion of a top cover, in accordance with certain examples;



FIG. 2E illustrates a rear view of a lever portion of a top cover, in accordance with certain examples;



FIG. 2F illustrates a bottom plan view of a lever portion of a top cover, in accordance with certain examples;



FIG. 2G illustrates a bottom perspective view of a lever portion of a top cover, in accordance with certain examples;



FIG. 3A illustrates a top plan view of a slider portion of a top cover, in accordance with certain examples;



FIG. 3B illustrates a top perspective view of a slider portion of a top cover, in accordance with certain examples;



FIG. 3C illustrates a front end view of a slider portion of a top cover, in accordance with certain examples;



FIG. 3D illustrates a side view of a slider portion of a top cover, in accordance with certain examples;



FIG. 3E illustrates a rear view of a slider portion of a top cover, in accordance with certain examples;



FIG. 3F illustrates a bottom plan view of a slider portion of a top cover, in accordance with certain examples;



FIG. 3G illustrates a bottom perspective view of a slider portion of a top cover, in accordance with certain examples;



FIG. 4A illustrates a top perspective view of the mating of the lever portion and slider portion of the top cover, in accordance with certain examples;



FIG. 4B illustrates a top perspective view of the mated lever portion and slider portion of the top cover, in accordance with certain examples;



FIG. 4C illustrates a bottom perspective view of the mated lever portion and slider portion of the top cover, in accordance with certain examples;



FIG. 4D illustrates the mated lever portion and slider portion of the top cover of FIG. 4C secured by flattening a post into the slider portion, in accordance with certain examples;



FIG. 5A illustrates a perspective view of a unitarily formed lever portion and slider portion of a top cover opened at a hinge, in accordance with certain examples;



FIG. 5B illustrates a top perspective view showing the top cover in FIG. 5A folded at its hinge, in accordance with certain examples;



FIG. 5C illustrates a bottom perspective view of the unitarily formed lever portion and slider portion of the top cover in FIG. 5A, in accordance with certain examples;



FIG. 5D illustrates a bottom perspective view of the folded top cover shown in FIG. 5B, in accordance with certain examples;



FIG. 6A illustrates a top exploded perspective view of the components of a hinged lever portion and slider portion, in accordance with certain examples;



FIG. 6B illustrates a top perspective view of the assembly of a hinged lever portion and slider portion of FIG. 6A, in accordance with certain examples;



FIG. 6C illustrates a bottom perspective view of the assembly of a hinged lever portion and slider portion of FIG. 6A, in accordance with certain examples;



FIG. 6D illustrates a top perspective view of the completed top cover of FIGS. 6A-6C, in accordance with certain examples;



FIG. 6E illustrates a top perspective view of the completed top cover of FIGS. 6A-6C, in accordance with certain examples;



FIG. 6F illustrates a top perspective view of the completed top cover of FIGS. 6A-6C with the lever portion open, in accordance with certain examples;



FIG. 6G illustrates a top perspective view of the completed top cover of FIGS. 6A-6C with the lever portion open, in accordance with certain examples;



FIG. 7A illustrates a top plan view of a sealing portion, in accordance with certain examples;



FIG. 7B illustrates a top perspective view of a sealing portion, in accordance with certain examples;



FIG. 7C illustrates a side view of a sealing portion, in accordance with certain examples;



FIG. 7D illustrates a front end view of a sealing portion, in accordance with certain examples;



FIG. 7E illustrates a cross-section view taken along section line 7E in FIG. 7A of a sealing portion, in accordance with certain examples;



FIG. 7F illustrates a bottom plan view of a sealing portion, in accordance with certain examples;



FIG. 7G illustrates a bottom perspective view of a sealing portion, in accordance with certain examples;



FIG. 7H illustrates a top plan view of a sealing portion, in accordance with certain examples;



FIG. 7I illustrates a top perspective view of a sealing portion, in accordance with certain examples;



FIG. 7J illustrates a side view of a sealing portion, in accordance with certain examples;



FIG. 7K illustrates a front end view of a sealing portion, in accordance with certain examples;



FIG. 7L illustrates a cross-section view taken along section line 7E in FIG. 7A of a sealing portion, in accordance with certain examples;



FIG. 7M illustrates a bottom plan view of a sealing portion, in accordance with certain examples;



FIG. 7N illustrates a bottom perspective view of a sealing portion, in accordance with certain examples;



FIG. 8A illustrates a top plan view of a support for the sealing portion, in accordance with certain examples;



FIG. 8B illustrates a top perspective view of a support for the sealing portion, in accordance with certain examples;



FIG. 8C illustrates a side view of a support for the sealing portion, in accordance with certain examples;



FIG. 8D illustrates a cross-section view taken along section line 8D in FIG. 8A of a support for the sealing portion, in accordance with certain examples;



FIG. 8E illustrates a bottom plan view of a support for the sealing portion, in accordance with certain examples;



FIG. 8F illustrates a bottom perspective view of a support for the sealing portion, in accordance with certain examples;



FIG. 9A illustrates a top perspective exploded view of the mating of the sealing portion and support, in accordance with certain examples;



FIG. 9B illustrates a top perspective view of the mated sealing portion and support, in accordance with certain examples;



FIG. 9C illustrates a bottom perspective view of the mated sealing portion and support, in accordance with certain examples;



FIG. 9D illustrates the mated sealing portion and support of FIG. 9C secured by pressing the pins into the support, in accordance with certain examples;



FIG. 10A illustrates a top perspective view of another embodiment of a sealing portion with an integral support, in accordance with certain examples;



FIG. 10B illustrates a bottom perspective view of the sealing portion of FIG. 10A, in accordance with certain examples;



FIG. 10C illustrates a cross-section view of the sealing portion of FIG. 10B taken along section line 10C in FIG. 10A, in accordance with certain examples;



FIG. 10D illustrates a top perspective view of another embodiment of a sealing portion with an integral support, in accordance with certain examples;



FIG. 10E illustrates a bottom perspective view of the sealing portion of FIG. 10A, in accordance with certain examples;



FIG. 10F illustrates a cross-section view of the sealing portion of FIG. 10E taken along section line 10F in FIG. 10D, in accordance with certain examples;



FIG. 11A illustrates a top perspective view of a top cover and a fixed element, in accordance with certain examples;



FIG. 11B illustrates a top perspective view the top cover and fixed element of FIG. 11A being positioned together, in accordance with certain examples;



FIG. 11C illustrates the securing of the top cover to the fixed element by flattening a protruding shaft from the fixed element, in accordance with certain examples;



FIG. 12A illustrates a top perspective view of a first position of the mated closure system, in accordance with certain examples;



FIG. 12B illustrates a bottom perspective view of the first position of the mated closure system, in accordance with certain examples;



FIG. 12C illustrates a top perspective view of a second position of the mated closure system, in accordance with certain examples;



FIG. 12D illustrates a bottom perspective view of the second position of the mated closure system, in accordance with certain examples;



FIG. 13A illustrates a bottom perspective view of the sealing portion being inserted into the fixed element and top cover, in accordance with certain examples;



FIG. 13B illustrates a top perspective view of the sealing portion connected to the lever portion of the top cover, in accordance with certain examples;



FIG. 13C illustrates a top perspective view of the sealing portion secured to the lever portion of the top cover by the pressing of a pin on the stem of the sealing portion into a stem aperture of the lever portion, in accordance with certain examples;



FIG. 13D illustrates a top perspective view of the pin of the stem of the sealing portion in the stem aperture of the lever portion, in accordance with certain examples;



FIG. 13E illustrates a top perspective view of the pin on the stem of the sealing portion pressed into the lever portion in accordance with certain example;



FIG. 13F illustrates a perspective view of the closed top cover to engage the sealing portion, in accordance with certain examples;



FIG. 13G illustrates a bottom perspective view of the closed top cover to engage the sealing portion, in accordance with certain examples;



FIG. 14A illustrates a top perspective view of another embodiment of a closure system, in accordance with certain examples;



FIG. 14B illustrates a top perspective view of another embodiment of a closure system shown in FIG. 14A with the lever portion opened, in accordance with certain examples;



FIG. 14C illustrates a top perspective view of another embodiment of a closure system, in accordance with certain examples;



FIG. 14D illustrates a top perspective view of another embodiment of a closure system shown in FIG. 14C with the lever portion opened, in accordance with certain examples;



FIG. 15A illustrates a top perspective view of the attachment of a safety seal to a closure system, in accordance with certain examples;



FIG. 15B illustrates a top perspective view of the safety seal attached to the closure system of FIG. 15A, in accordance with certain examples;



FIG. 15C illustrates a top plan view of the safety seal attached to the closure system of FIG. 15A, in accordance with certain examples;



FIG. 16A illustrates top and bottom perspective views of a first position of the closure system before opening, in accordance with certain examples;



FIG. 16B illustrates top and bottom perspective views of a second position of the closure system before opening, in accordance with certain examples;



FIG. 16C illustrates top and bottom perspective views of a third position of the closure system with the dispensing aperture partially open, in accordance with certain examples;



FIG. 16D illustrates top and bottom perspective views of a fourth position of the closure system with the dispensing aperture fully open, in accordance with certain examples;



FIG. 17A illustrates top and bottom perspective views of a fifth position of the closure system before closing, in accordance with certain examples;



FIG. 17B illustrates top and bottom perspective views of a sixth position of the closure system with the dispensing aperture partially closed, in accordance with certain examples;



FIG. 17C illustrates top and bottom perspective views of a seventh position of the closure system with the dispensing aperture fully closed, in accordance with certain examples;



FIG. 18 illustrates a top perspective view of a plurality of closure systems stacked in the Z-direction, in accordance with certain examples;



FIG. 19A illustrates a top perspective exploded view of a closure system and a beverage can, in accordance with certain examples;



FIG. 19B illustrates the closure system of FIG. 19A positioned over the mouth of the beverage can, in accordance with certain examples;



FIG. 19C illustrates the closure system of FIG. 19A secured to the mouth of the beverage can, in accordance with certain examples;



FIGS. 20A-20C illustrates the dimensions of canning industry standardized can ends, in accordance with certain examples;



FIG. 21A illustrates the can end of FIG. 20A including a first aperture and a protruding shaft having a second aperture, in accordance with certain examples;



FIG. 21B illustrates a cross-section view of the can end of FIG. 21A along section line 21B, in accordance with certain examples;



FIG. 22A illustrates a top plan view of a complete top cover, in accordance with certain examples;



FIG. 22B illustrates a side view of a complete top cover, in accordance with certain examples;



FIG. 22C illustrates a top plan view of a slider portion of a top cover with dimensions, in accordance with certain examples;



FIG. 22D illustrates a side view of a slider portion of a top cover with dimensions, in accordance with certain examples;



FIG. 22E illustrates a top plan view of a lever portion of a top cover with dimensions, in accordance with certain examples;



FIG. 22F illustrates a side view of a lever portion of a top cover with dimensions, in accordance with certain examples;



FIG. 23A illustrates a top plan view of a sealing portion and attached support with dimensions, in accordance with certain examples;



FIG. 23B illustrates a side plan view of the sealing portion and attached support of FIG. 23A with dimensions, in accordance with certain examples;



FIG. 23C illustrates a cross-sectional view of the sealing portion and attached support of FIG. 23B taken along section line 23C of FIG. 23A with dimensions, in accordance with certain examples; and



FIG. 23D illustrates a front view of the sealing portion and attached support of FIG. 23A with dimensions, in accordance with certain examples.





Certain features or components of the illustrative containers and devices shown in the figures may have been enlarged, distorted or otherwise shown in a non-conventional manner relative to other features or components to facilitate a better understanding of the novel containers and devices disclosed herein. It will be recognized by the person of ordinary skill in the art, given the benefit of this disclosure, that the containers and devices disclosed herein can be used in any orientation relative to gravity and suitable orientations will be readily selected by the person of ordinary skill in the art, given the benefit of this disclosure. References made to beverage containers herein is not intended to limit the disclosure to beverage containers, but instead refers to containers that may be used to hold various contents, including consumable and non-consumable goods.


DETAILED DESCRIPTION OF THE DISCLOSURE

Certain examples of the devices and methods disclosed herein will be recognized by the person of ordinary skill in the art, given the benefit of this disclosure to provide sanitary, cost-effective containers. In particular, containers are provided that have a sanitary cover, are easier to open than conventional cans, and can be repeatedly and securely resealed. The container of certain examples disclosed herein will prevent the dispensing portion of the container from exposure to the environment and ensure a safe and contaminant-free product. The current manufacturing process for standard cans may be adapted to include the present disclosure, with reduced, minimal, or no additional cost. Conventional containers, such as aluminum beverage cans, are manufactured by well-known processes. In one process, aluminum cans are made from an aluminum coiled sheet which is fed through a cupping press that cuts discs and forms them into cup-like containers. These cup-like containers drop from the press onto a conveyor and are fed into an ironing press where successive rings redraw and iron the cup, reducing the sidewall thickness and achieving a full length can. The tops of the can bodies are then trimmed to eliminate rough edges and ensure height uniformity. The can bodies are then cleaned and dried. Subsequently, the can bodies are labeled and coated with a clear protective layer of varnish. The cans are then baked, treated with a coating, and re-baked. The top portion of each can body is narrowed to form a neck with an outward flange at the top edge. The bottom portions are domed to obtain the strength required to withstand internal pressure if a carbonated liquid will be added to the can. After testing for pinholes and defects, the can bodies are placed on pallets and shipped to a supplier or a filler. The cans can be used for numerous applications, including, but not limited to, beverages, paints and coatings, foods, and other perishable and non-perishable goods storage applications.


The lids of conventional aluminum cans, typically referred to as “can ends,” are made by stamping shells from an aluminum coiled sheet that has been coated in a sealant. A pin is drawn outwards from the center of each shell. On those cans using a stay-on-tab type closure, the process further includes inserting a separate piece of metal as the tab which is threaded over the drawn pin. The pin is then flattened against the tab forming a rivet which secures the tab in place. The edge of the can ends generally have a curved flange and a bead of sealing material is applied to the inside of the curved flange. The can ends are also scored to define the opening of the can end in the finished product and regulatory text may be engraved onto the top surface of the can end. The can ends are then shipped to the supplier or filler.


At the supplier or filler, a filling machine is used to pour the beverage into the can body. The process is completed after filling when the can end is placed on top of the filled can body and secured to the can body using the seamer by forming a double seam with the flange on the can body. A double seam is formed by interlocking edges of the two components, the outward top edge of the flange of the can body and the curved flange at the edge of the can end, curling the can end flange around the flange on the can body edge so that the can end flange is partially rolled up and under the flange on the can body edge to form a partial seam, and crimping and flattening the partial seam against the can body to form a hermetic seal.


Most beverage cans have a stay-on-tab type closure such as those described herein. However, there are many aspects of the conventional stay-on-tab closure that make it undesirable. The stay-on-tab closure does not provide for a sanitary drinking environment because the outer surface of the can and the top of the can, which comprises the stay-on-tab closure, comes into contact with the environment during storage, shipping, distribution, display, handling, and ultimately, use by the consumer. When the contents of the can are poured directly from the can through the opening formed from the score line and the stay-on-tab closure, the contents come in contact with the top and surface of the can, making for a potentially unsanitary environment. Additionally, should the can contain a beverage, if a consumer drinks the beverage from the can directly, both the beverage and the mouth of the consumer come into contact with the surface and top of the can, also making for an unsanitary drinking environment. Additionally, the stay-on-tab type closure does not allow for reclosing and resealing the container.


The present disclosure provides a resealable container that may be manufactured by commercially available processes and machinery with minimal or no retrofitting, low material and manufacturing costs, ease of stacking during shipping and storage, increased sanitary conditions of the dispensing portion, reliability and ease of opening, closing, and resealing by consumers, pourability, drinkability, recyclability, and decreased likelihood of spilling the contents of the container. These advantages of the present disclosure overcome the noted deficiencies of the conventional stay-on-tab type closure beverage containers.


The present disclosure also provides a resealable closure system to use with a beverage container that allows for locking of the closure system in a secure, closed, and sealed position. Additionally, after the container is initially opened, the user may recover and protect the dispensing portion of the container to prevent contaminants from residing in the dispensing portion area.


As used herein, the term “mate” or “mating” may describe any manner of connecting or joining two or more components together. The term “mate” or “mating” may describe any mechanical, thermal, or chemical process that connects or joins two or more components together. In the examples disclosed herein, the term “mate” or “mating” may mean welding, soldering, molding, adhering, crimping, folding, double seaming, clamping, snapping, interlocking, fastening or otherwise connecting two components. For example, two or more components of the container may be welded, soldered, molded, adhered, crimped, folded, double seamed, clamped, snapped, or interlocked together. In certain examples, two or more components may be mated by being fastened together with the assistance of another component, thereby forming a rigid or flexible, hinge connection. “Mating” may also mean connecting or joining at least two components having compatible threaded surfaces. The mating may be permanent or temporary.


In accordance with certain examples, a container is disclosed. The container may be used to hold various contents including, but not limited to consumable goods, and may have the ability to reliably seal and reseal the goods within the container. The goods may be in the form of at least one of a solid, liquid or gas. In certain examples, the contents may be a food, beverage, for example, a carbonated beverage, or other consumable. In other examples, the contents may be other than a food or beverage but may still require sanitary conditions and protection from contamination while dispensing and/or storing.


In accordance with certain examples, a closure system comprising a fixed element and a movable closure system is disclosed. The movable closure element may comprise a top cover and a sealing portion. A component of the movable closure element, such as the top cover, sealing portion, or another component of the movable closure element, may secure other portions of the movable closure element to each other. This component may allow the top cover and sealing portion to operatively interact with one another, directly or indirectly. The top cover and the sealing portion may operatively interact with one another to allow movement of the sealing portion together with the top cover. The top cover and the sealing portion may operatively interact with one another to allow movement of the sealing portion in a direction that is the same as the direction in which the top cover is moved, for example, in a lateral direction along a channel or slot formed in the fixed element. Additionally, the top cover and the sealing portion may operatively interact with one another to allow movement of the sealing portion in a direction that is not the same direction as the direction in which the top cover is moved. For example, engaging the top cover by, for example, turning, lifting, sliding, or otherwise moving at least a portion of the top cover, may allow the sealing portion to move a predetermined distance away from the bottom surface of the can end.


In accordance with certain examples, a closure system comprising a fixed element and a movable closure system is disclosed. The fixed element may be constructed and arranged to be secured to the container. The fixed element may include a can end having a first aperture and a protruding shaft spaced laterally apart from the first aperture. The movable closure element may have a top cover and a sealing portion. The top cover may include a lever portion and slider portion. The lever portion and slider portion may be constructed and arranged to be mated together. The lever portion may include a plug dimensioned to fit into an opening, i.e., a second aperture, in the protruding shaft of the fixed element such that in a first position, the plug is disposed within the second aperture of the protruding shaft and the top cover is disposed over the first aperture. The sealing portion may include a stem connected to the lever portion. The sealing portion may be disposed below the fixed element and constructed and arranged such that, at the first position, a top surface of the sealing portion is in contact with a lower surface of the fixed element and covers the first aperture.


In accordance with certain examples, a closure system comprising a fixed element and a movable closure system is disclosed. The fixed element may include a can end having a first aperture and a protruding shaft having a second aperture spaced laterally apart from the first aperture. The movable closure element may have a top cover disposed over the first aperture and a sealing portion. The top cover may include a lever portion, a slider portion, and a plug. The lever portion and slider portion may be constructed and arranged to be engaged with the protruding shaft of the fixed element to permit lateral movement of the top cover along the slider portion. The plug may be constructed and arranged to act as a valve when inserted into the second aperture of the protruding shaft. In this configuration, the plug is designed and manufactured to withstand repeated insertion and removal from the second aperture and maintain a seal, e.g., resisting deformation or warping. The sealing portion may include a stem connected to the lever portion, with the stem being constructed and arranged such that, as the lever portion is lifted and the plug removed from the second aperture of the protruding shaft, the sealing portion moves in a downward direction away from the fixed element, permitting the top cover to be laterally moved along the slider portion to expose the first aperture.


In accordance with certain examples, a closure system for resealing a can is disclosed. The closure system includes a fixed element having a dispensing aperture and a vent aperture. The closure system includes a top cover disposed over the dispensing aperture and the vent aperture. The top cover includes a seal that fits within the vent aperture when the top cover is closed, and a sealing portion disposed beneath the fixed element. The top cover permits the vent aperture to be opened, i.e., unsealed, such that the top cover and the sealing portion can be slid together to expose to dispensing aperture.


In accordance with certain examples, a resealable container may comprise a container body and a closure system. The closure system may comprise a fixed element constructed and arranged to be secured to the container body and a movable closure element. In certain examples, the fixed element may include a can end comprising a first aperture and a protruding shaft having a second aperture spaced laterally apart from the first aperture. The first aperture can have a substantially oblong profile and at least one pair of substantially parallel sides. The fixed element may be secured to an end of the container body, e.g., by double seams. The resealable container may include a movable closure element comprising a top cover and a sealing portion. The top cover includes a lever portion and a slider portion that are mated together. The lever portion, when engaged, moves together with the slider portion expose the first aperture of the fixed element. The sealing portion may reside within the container body and include a base surrounded at its periphery by a polymer seal, e.g., including an O-ring. The base includes a stem, e.g., a hinged stem, extending orthogonally to the base and having an aperture at its free end. The stem may be disposed through the fixed element and is constructed and arranged to attach to a retention pin on the lever portion.


In accordance with certain examples, at a first position, the top cover, i.e., the lever portion and slider portion, covers the first aperture, the lever portion is resting on and secured to the slider portion, and the sealing portion is in contact with the bottom surface of the fixed element. At a second position, the top cover, i.e., the lever portion and slider portion, covers the first aperture, the lever portion is lifted from the slider portion to remove the plug from the second aperture of the protruding shaft and the sealing portion is spaced a predetermined distance from the bottom surface of the fixed element. At a third position, the top cover, i.e., the lever portion and the slider portion, and the sealing portion expose the first aperture of the fixed element and the sealing portion is spaced a predetermined distance from the bottom surface of the fixed element. At a fourth position, the top cover, i.e., the lever portion and the slider portion, and the sealing portion expose the first aperture of the can end, the lever portion is lowered towards the slider portion, and the sealing portion is in contact, e.g., partial contact, with the bottom surface of the fixed element. At the fourth position, the resealable container has been opened.


In accordance with certain examples, at a fifth position, the top cover, i.e., the lever portion and the slider portion, and the sealing portion expose at least a portion of the first aperture of the fixed element, the lever portion is lifted relative to the slider portion, and the sealing portion is spaced a predetermined distance from the bottom surface of the fixed element. At a sixth position, the top cover, i.e., the lever portion and the slider portion, and sealing portion cover the dispensing portion, and the scaling portion is spaced a predetermined distance from the bottom surface of the fixed element. At a seventh position, the top cover, i.e., the lever portion and the slider portion, and sealing portion cover the first aperture of the fixed element, the lever portion is lowered to connect to the slider portion and insert the plug into the second aperture of the protruding shaft, and the sealing portion is in contact with the bottom surface of the fixed element. At the seventh position, the resealable container has been rescaled.


In accordance with certain examples, a closure system for sealing and resealing a container may be constructed and arranged to be mated with a container body, e.g., a standard beverage can. The closure system may comprise a fixed element comprising a can end comprising a first aperture and a second aperture, the first aperture having a substantially oblong profile and a greater linear dimension than the second aperture. The fixed element may be constructed and arranged to be secured to an end of the container body.


The closure system may also comprise a movable closure element. The movable closure element may comprise a top cover disposed on a top surface of the can end comprising a lever portion, a slider portion, and a sealing portion. The lever portion includes a hinge, e.g., a living hinge, separating the lever portion into a first part and second part. The first part of the lever portion, e.g., a fixed part, includes an aperture and a plurality of mating features permitting connection to the slider portion. The second part of the lever portion, e.g., a movable part, is generally constructed and arranged to be movable via the hinge, e.g., living hinge, and includes a retention pin and an aperture having a polymeric seal, i.e., a plug, dimensioned to pass through the opening, i.e., second aperture, of the protruding shaft of the fixed element. This polymer seal, i.e., plug, acts as a valve, permitting compressed gases within the resealable container to escape, if present, and further permitting air to enter the beverage can when dispensing liquids from the beverage can. The slider portion of the movable closure element permits a releasable connection from the lever portion and generally includes a slot, e.g., an elongated slot, dimensioned to permit the protruding shaft of the fixed element to pass therethrough. The slider portion includes a plurality of apertures that are dimensioned to connect or mate with the plurality of mating features of the lever portion. For example, the lever portion can include a plurality of hooks or latches that fit into the plurality of apertures of the slider portion. Hooks and latches are but examples of mating features, and this disclosure is in no way limited by the type of mating feature used to secure the lever portion and slider portion. In some embodiments, the lever portion and slider portion are made of unitary construction, e.g., not constructed from a separate lever portion and separate slider portion that are mated together.


The sealing portion of the movable closure element is generally constructed and arranged to be held against a lower surface of the fixed element aligned with the first aperture, i.e., the dispensing aperture, when the lever portion is not in use. The scaling portion may include a stem connected to the lever portion. The stem may be constructed and arranged such that, as the lever portion is lifted and the plug is removed from the opening, i.e., second aperture, of the protruding shaft, the sealing portion moves in a downward direction away from the fixed element to a predetermined distance from a bottom surface of the fixed element. The downward motion of the sealing portion away from the lower or bottom surface of the fixed element permits the top cover to move. As the top cover is moved laterally from the first aperture of the fixed element to the second aperture of the fixed element, the sealing portion is moved laterally at the predetermined distance with the top cover and the first aperture of the fixed element is exposed.


The fixed element, in some embodiments, may include an industry-standard shell, also known as a can end. The can end may be used to construct the closure system before any additional features have been applied, such as a score line for a dispensing aperture, a standard tab, a pin that holds the tab in place, and any stamped features or engraved text. There are a number of industry standard shells available on the market. For example, a fixed element or shell may be any of a B64 shell available from Ball Corporation, Ardagh Metal packaging (AMP), and Crown Holdings Inc., a CDL shell available from Ball Corporation and Ardagh Metal packaging (AMP), or a SUPEREND® shell available from Crown Holdings Inc. Industry-standard shells are generally manufactured from any suitable material that can withstand changes in temperature, pressure, and the chemistry of the container contents. For example, shells may be manufactured from various types of steels, tin, or aluminum or aluminum alloys, such as 5000 series aluminum that is an alloy of aluminum with magnesium. In particular embodiments, fixed elements useful for the disclosure disclosed herein may be manufactured from 5052 or 5182 aluminum alloy having a thickness of between about 0.208 mm to about 0.305 mm. In some embodiments, fixed elements useful for the disclosure disclosed herein may be manufactured from 5052 or 5182 aluminum alloy having a thickness of between about 0.208 mm to about 0.750 mm, e.g., about 0.208 mm, about 0.250 mm, about 0.275 mm, about 0.300 mm, about 0.325 mm, about 0.350 mm, about 0.375 mm, about 0.400 mm, about 0.425 mm, about 0.450 mm, about 0.475 mm, about 0.500 mm, about 0.525 mm, about 0.550 mm, about 0.575 mm, about 0.600 mm, about 0.625 mm, about 0.650 mm, about 0.675 mm, about 0.700 mm, about 0.725 mm, or about 0.750 mm.


The thickness of the fixed element, including the movable closure element affixed thereto, is sufficient to withstand the internal pressure of a pressurized beverage. Pressurized beverages stored in cans, e.g., carbonated beverages, e.g., carbonated water soda, beer, and the like, generally have an internal pressure when sealed of between 2 to 7 atmospheres (atm), i.e., about 2 to 7 bar, e.g., about 6.8 bar, at room temperature, e.g., between 15° to 25° C. Once a typical pressurized beverage can is opened, the pressure decreases to atmospheric pressure, i.e., about 1 bar, and remains as such. As disclosed herein, the movable closure systems are operable in a pressure range of 1 bar to 10 bar, e.g., about 1 bar to about 10 bar, about 1.5 bar to about 9.5 bar, about 2 bar to about 9 bar, about 2.5 bar to about 8.5 bar, about 3 bar to about 8 bar, about 3.5 bar to about 7.5 bar, about 4 bar to about 7 bar, about 4.5 bar to about 6.5 bar, or about 5 bar to about 6 bar, e.g., about 1 bar, about 1.5 bar, about 2 bar, about 2.5 bar, about 3 bar, about 3.5 bar, about 4 bar, about 4.5 bar, about 5 bar, about 5.5 bar, about 6 bar, about 6.5 bar, about 7 bar, about 7.5 bar, about 8 bar, about 8.5 bar, about 9 bar, about 9.5 bar, or about 10 bar. For example, the movable closure systems are operable up to an internal pressure of about 6.8 bar. The thickness of the fixed end is selected to reduce doming or other deformation of the fixed element should the contents of the resealable container be pressurized.


In some embodiments, the fixed element may include a can end having a first aperture and a second aperture that is incorporated into a protruding shaft. As illustrated in FIGS. 1A-1F, the can end 100 has a first, larger aperture 102 that is intended to be a dispensing aperture and a smaller, second aperture 104 positioned laterally with the first aperture. The shape of the first aperture may be of any suitable profile that permits dispensing, e.g., round, oval, chamfered, and the like. In specific embodiments, such as that illustrated in FIGS. 1A-1F, the shape of the first aperture may be substantially oblong in profile having a pair of parallel sides in line with a long axis of the first aperture, i.e., a “Double D” aperture. The first aperture can have a portion of its periphery be substantially parallel sides. Other aperture shapes are possible and envisioned within this disclosure. As disclosed herein, the second aperture 104 can be part of a protruding shaft 105 that is drawn above the plane of the can end. The protruding shaft 105 is integral to the fixed element and can be formed into the fixed element using methods known in the art, e.g., punches, presses, forming dies, and the like.


The height of the protruding shaft is chosen such that it does not exceed the uppermost edge of the fixed element 100 but is sufficiently high to provide for enough material to be clinched, pressed down, or otherwise secured when additional components are connected thereto. In some embodiments, the protruding shaft 105 can be from about 1 mm to about 5 mm in height from the top plain surface of the fixed element, e.g., about 1 mm, about 1.1 mm, about 1.2 mm, about 1.3 mm, about 1.4 mm, about 1.5 mm, about 1.6 mm, about 1.7 mm, about 1.8 mm, about 1.9 mm, about 2 mm, about 2.1 mm, about 2.2 mm, about 2.3 mm, about 2.4 mm, about 2.5 mm, about 2.6 mm, about 2.7 mm, about 2.8 mm, about 2.9 mm, about 3 mm, about 3.1 mm, about 3.2 mm, about 3.3 mm, about 3.4 mm, about 3.5 mm, about 3.6 mm, about 3.7 mm, about 3.8 mm, about 3.9 mm, about 4 mm, about 4.1 mm, about 4.2 mm, about 4.3 mm, about 4.4 mm, about 4.5 mm, about 4.6 mm, about 4.7 mm, about 4.8 mm, about 4.9 mm, or about 5 mm. In specific embodiments, the protruding shaft has a height of about 2.2 mm to about 2.5 mm, e.g., about 2.2 mm, about 2.3 mm, about 2.4 mm, or about 2.5 mm. As disclosed herein, the protruding shaft of the fixed element 105 includes an opening 104, i.e., a second aperture, therethrough on its top surface. The opening 104, i.e., second aperture, may be less than or equal to the diameter of the protruding shaft. The can end further includes standard can end features, such as a partially rolled outer periphery to facilitate attachment to a standard can body using methods known in the art.


The closure system disclosed herein includes a movable closure element that is constructed and arranged to seal and reseal the first aperture in the fixed element, i.e., the dispensing aperture, to seal and reseal the resealable container. The movable closure element generally includes two elements: a top cover and a scaling portion that is connected to the top cover. The top cover is disposed on the top surface of the fixed element and the sealing element is disposed on the bottom surface of the fixed element. In operation, when the top cover is engaged, the scaling portion is moved away from the bottom surface of the fixed element a predetermined distance such that the movable closure system as a unit can be directed away from the first aperture in the can end, i.e., the dispensing aperture, to provide access to the contents of the resealable container. In some embodiments, the predetermined distance, i.e., the distance from the base of the stem to the bottom surface of the fixed element, is between about 3 mm to about 4 mm, e.g., about 3 mm, about 3.05 mm, about 3.10 mm, about 3.15 mm, about 3.20 mm, about 3.25 mm, about 3.30 mm, about 3.35 mm, about 3.40 mm, about 3.45 mm, about 3.50 mm, about 3.55 mm, about 3.60 mm, about 3.65 mm, about 3.70 mm, about 3.75 mm, about 3.80 mm, about 3.85 mm, about 3.90 mm, about 3.95 mm, or about 4 mm. In certain embodiments, the predetermined distance is from about 3.25 mm to about 3.75 mm.


In some embodiments, the movable closure element includes two components: a lever portion and a slider portion. The lever portion and slider portion can be two separate components that are mated together. Alternatively, the lever portion and slider portion can be integrated into a single component with separate functionalities.


Independent of the configuration, the lever portion of the movable closure element is constructed and arranged to permit the movable closure element to be disengaged from the fixed element and provide for initial venting of the resealable container should the resealable container include pressurized contents. Once the resealable container is depressurized, if needed, and the movable closure element disengaged from the fixed element, the slider portion permits the movable closure element to be moved by the lever portion along an axis or plane of the fixed element to expose the first aperture of the can end, i.e., the dispensing aperture. The lever portion and slider portion similarly work in conjunction to move the movable closure element back to cover the first aperture of the can end, i.e., the dispensing aperture, and reseal the resealable container.


An embodiment of a lever portion is illustrated in FIGS. 2A-4G. As illustrated, lever portion 200 includes a body 202 that is bisected into two parts, a fixed part 202a and a movable part 202b, by the inclusion of a hinge 204 integrated into the body 202. An integrated hinge, also called a living hinge, is a low-duty hinge made from a thin portion of the same material as the parts being hinged together. Other hinge variants are possible and within the scope of this disclosure. The fixed part 202a of the lever portion 200 includes an aperture 206 and a plurality of mating features 208 that permit connection to other components of the movable closure element, i.e., the slider portion. As illustrated in FIG. 2G, aperture 206 includes an extension 206a having the shape of the aperture that extends down from the bottom surface of body 202. The plurality of mating features 208 may be any suitable type of connector that provides a secure connection to another component, such as tabs, pins, posts, protrusions, and other similar features. In specific embodiments, and as illustrated in FIGS. 2C-2E and 2G, the plurality of mating features 208 may include snap hooks 208a and posts 208b that are dimensioned to fit into an appropriately sized aperture on another component of the movable closure element, i.e., the slider portion. The movable part 202b of the lever portion 200 includes an aperture that is filled by a plug 210 and a retention pin 212 disposed closer to the hinge 202. The retention pin 212 protrudes above the top surface of the lever portion 200 and the plug 210 protrudes below the top surface of the lever portion 200. The lever portion 200 includes an aperture 214 disposed at the end of the part of the lever portion 200 including the plug 210 and retention pin 212. This aperture is used to secure the movable part 202b of the lever portion 200 following rescaling of the resealable container. An example material useful for the plug 210 of the present disclosure is a thermoplastic elastomer (TPE), a thermoplastic polyolefin elastomer (TPO), or a silicone rubber having a Shore hardness of Shore 60-70 A. The material of the plug is chosen such that the plug has sufficient durability to withstand repeated insertions and removals from the second aperture while maintaining a seal, e.g., resisting deformation, when inserted into the second aperture.


An embodiment of a slider portion is illustrated in FIGS. 3A-3G. In FIGS. 3A-3G, slider portion 300 includes a body 302 having a profile that is substantially the same as the lever portion illustrated in FIGS. 2A-2G. The slider portion 300 includes an elongated slot 304 that is dimensioned to permit the protruding shaft of the fixed element to pass. When engaged, the slider portion slides along the elongated slot 304 with the protruding shaft of the fixed element acting as a slide stop. The slider portion 300 also includes a plurality of apertures 306 that line up with the plurality of mating features 208 of the lever portion 200 illustrated in FIGS. 2A-2G. The larger aperture 308 of the slider portion 300 is sized to permit extension 206a of aperture 206 of the lever portion 200 to pass through without interference. At the end of the slider portion 300 with the elongated slot 304 is a moveable closure 310 that is sized to fit into the aperture 214 of the lever portion. The movable closure 310 is illustrated in FIGS. 3A-3G as a flexible snap hook that fits into aperture 214 and hooks onto one side of the aperture 214. This is only an example of a movable closure, and other types of movable closures, e.g., snaps, clips, tabs, and the like, are within the scope of this disclosure. In operation, the movable part 302b of the lever portion 300 can be secured to the slider portion 300 by allowing the moveable closure 310 to contact the aperture 214 of the lever portion 200, releasably fixing its position. The embodiment of a releasable closure for the lever portion and slider portion is only one example of this type of closure and other embodiments are within the scope of this disclosure.


As disclosed herein, the lever portion of the top cover is constructed and arranged to be mated with the slider portion of the top cover. An embodiment of the mating of these two components is illustrated in FIGS. 4A-6D. In FIG. 4A, the lever portion 200 is positioned above the slider portion 300 with the plurality of mating features of the lever portion 200 positioned over the plurality of apertures of the slider portion 300. The down arrow in FIG. 4A illustrates the direction in which the lever portion 200 and slider portion 300 are joined together. The curved arrow in FIG. 4A illustrates the range of motion of the movable part of the lever portion 200 via its hinge. During mating of the lever portion 200 and slider portion 300, the movable part of the lever portion is not secured to the slider portion and can be positioned out of the way as to not have it interfere with the assembly process. In FIGS. 4B and 4C, the lever portion 200 is pressed into the slider portion 300 such that the plurality of mating features 208a, 208b of the lever portion 200 pass through the plurality of apertures 306 and 308 of the slider portion 300. In the bottom perspective views of FIGS. 4C and 4D, a post 208b extending from the lower surface of the lever portion 200 is pressed, i.e., heat pressed, flat against the lower surface of the slider portion 300 to secure the two components together. The snap hooks 108a of the lever portion 200 have the hooked end protruding from the lower surface of the mated components.



FIGS. 5A-5D and 6A-6G present alternative embodiments of the mating or joining of the lever portion and slider portion of the top cover. In the embodiment illustrated in FIGS. 5A-5D, the lever portion 502 and slider portion 504 are shown as a single unit connected by a hinge 506 at the periphery of the two components. To form the top cover, the slider portion 504 is folded along the direction shown in the curved arrow in FIGS. 5A and 5C into the lower surface of the lever portion 502. When folded at the hinge 506, the lever portion 502 is pressed into the slider portion 504 such that the plurality of mating features 502a of the lever portion 502 pass through the plurality of apertures 504a of the slider portion 504. The plug 510 of the lever portion 502 passes through the elongated slot 508 of the slider portion 504 and protrudes below the lower surface of the slider portion 504. The moveable closure 512 to contact the aperture 514 of the lever portion 502, releasably fixing its position.



FIGS. 6A-6C illustrate the assembly of a top cover 600 made from a metal slider portion and metal lever portion that are affixed together. In FIG. 6A, the lever portion 602 is fitted with plug 606 through a first aperture in the lever portion 602. The lever portion 602 further includes a second aperture 614 that is dimensioned to accept one or more additional components of a movable closure system, e.g., a sealing portion. The slider portion 604 is formed from a stamped metal feedstock and is bent into shape by folding the back part into the main slider body to form tabs 604a as shown in FIG. 6B. Slider portion 604 further includes an aperture 612 that is dimensioned to accept one or more additional components of a movable closure system, e.g., a sealing portion. To form the slider portion, the rear of the slider portion having the rectangular aperture in FIG. 6A is bent up at the narrow point and on to the C-shaped slit made in the metal feedstock. This C-shape slit is then folded over one side of the rectangular aperture to secure it to the main slider body. The tabs or snap hooks, cut as slits into the metal feedstock, are folded down such that they protrude below the rectangular aperture. Though tabs are illustrated, this is only one example and other shapes and forms are within the scope of this disclosure. The lever portion 602 is laid onto the slider portion 604 along the direction of the curved arrow which has a set of tabs having apertures formed on the sides. These apertured tabs are folded up and onto pins protruding from the leading edge of the lever portion 602 as shown in FIGS. 6C-6D. FIGS. 6E-6G illustrate this variant of the top cover in operation, with the lever portion 602 secured to the slider portion 604 using a movable closure 610 and the plug 606 passing thorough the elongated slot 608 of the of the slider portion 604.


In general, the lever portion and the slider portion can be made from any suitable material. In some embodiments, one or both of the lever portion and slider portion may be made from a metal, such as various types of steels, tin, aluminum, or aluminum alloys, such as 5000 series aluminum that is an alloy of aluminum with magnesium.


Alternatively, one or both of the lever portion and slider portion may be made from a polymeric material, such as a TPE, thermoplastic polyolefin elastomer (TPO), polypropylene (PP), polyethylene terephthalate (PET), high-density polyethylene (HDPE), polyvinylchloride (PVC), low-density polyethylene (LDPE), polystyrene (PS), or other food safe polymers. One or both of the sealing portion and the plug may be made from any suitably flexible polymer, e.g., TPE. TPO, silicone rubber, or another suitable polymer that can provide for the formation of a hermetic seal. In specific embodiments, the sealing portion may include more than one polymer, e.g., a PP structure with a TPE seal as disclosed herein.


In some embodiments, the movable closure element includes a sealing portion that is constructed and arranged to be positioned against the first aperture of the fixed element, i.e., the dispensing aperture, to seal the first aperture when the movable closure element is engaged. In operation, when the lever portion is lifted, the sealing portion moves in a downward direction away from the fixed element to a predetermined distance from the bottom surface of the fixed element. As disclosed herein, engaging the lever portion removes the plug from the opening, i.e., second aperture, in the protruding shaft, which depressurizes the resealable container and thus permits the top cover to be moved laterally from the first aperture of the fixed element to the second aperture of the fixed element and thus expose the first aperture of the fixed element.



FIGS. 7A-7N illustrate an embodiment of a sealing portion for the movable closure element disclosed herein. As illustrated, sealing portion 700 includes a stem 702 that is disposed orthogonally to a base 704 and attached to a top surface of the base 704 at one end. The base 704 generally includes spacers 707 on the top surface of the base 704 and a plurality of mating features 706 on a lower surface of the base 704. The spacers 707 provide a gap for air to flow when the resealable container is in use, e.g., emptied. The plurality of mating features 706, illustrated as three posts in FIG. 7D, can be pressed, e.g., heat pressed, to secure another component to the base 704. The stem 702 includes at its free end an aperture 708 that is dimensioned to connect to the retention pin 412 of the lever portion of the top cover. The stem and lever portion can be connected using other connectors, such as by welding, e.g., chemical welding or heat welding, snaps, rivets, e.g., semi-tubular rivets, adhesives, or other suitable fasteners. In an alternate arrangement, such as that illustrated in FIGS. 7H-7N, the stem 702 can include a pin 708a at its free end that is dimensioned to connect to the second aperture 614 of the lever portion of the top cover. The stem 702 further includes a hinge 710 molded into the stem 702 permitting the stem 702 to bend when connected to the lever portion of the top cover. The periphery of the base 704 includes a polymeric seal 712, e.g., an O-ring, that presses into the lower surface of the fixed element to create the seal, e.g., hermetic seal, when the resealable container is closed. The polymeric seal 712 can be integral to the scaling portion 700. For example, as illustrated in FIG. 7E, the polymeric seal 712 is formed directly onto the periphery of the base 704 as an overmolded component of a different polymeric material than the base 704. Alternatively, the polymeric seal 712 can be a separate component that is affixed to the periphery of the base 704, e.g., a separate O-ring secured into a groove or the like at the periphery of the base 704. In general, the sealing portion 700 is made substantially from a polymer material as disclosed herein, and thus is lightweight and flexible. To provide additional support to the sealing portion 700, the base 704 can have a support 800, illustrated in FIGS. 8A-8F, connected thereto. As illustrated in FIGS. 8A-8F, the support 800 is dimensioned to accept the base 704 and includes a plurality of apertures 802 that permit the plurality of mating features 706 to pass therethrough. To provide additional rigidity, the support 800 can be made from a more rigid polymer material or a metal, e.g., aluminum or steel. Further, the support 800 can be used to limit the amount of compression that the polymeric seal 712, e.g., an O-ring, of the scaling portion experiences. Without wishing to be bound by any particular theory, the application of high pressure, such as pressure from a carbonated beverage in a can, to softer polymers distorts their shape, and depending on the magnitude of the applied force, the original shape may not return once the applied force is removed. The support, being made from a more rigid material than the sealing portion, aids in limiting the applied force to the polymeric seal 712 permitting the polymeric seal 712 to return to its original shape after being compressed by the high internal pressure within the resealable container which generally acts to push or force the polymeric seal 712 into the bottom surface of the fixed element.


As disclosed herein, one or more components of the closure system are made from a polymeric material. In general, the use of polymeric material is to be minimized for resealable containers that are distributed to the general public. The polymeric materials are typically not separated from the other substrates, e.g., aluminum or steel, when the resealable container is disposed of. Thus, when the resealable container is processed, such as by recycling, the metallic substrates will be melted down to recapture stock metal. During this process, the polymeric material will be burned or fired off as their melting and boiling points are far lower than any metal. It is an object of this disclosure to reduce polymer use to conform with industry standards and environmental regulations. In some embodiments, the total amount of polymer materials in the closure systems disclosed herein is between about 0.5 g and about 3.5 g. e.g., about 0.6 g to about 3.0 g, about 0.7 g to about 2.5 g, or about 0.8 g to about 2.2 g. e.g., about 0.5 g, about 0.6 g. about 0.7 g, about 0.8 g, about 0.9 g, about 1.0 g, about 1.1 g, about 1.2 g, about 1.3 g, about 1.4 g. about 1.5 g, about 1.6 g, about 1.7 g, about 1.8 g, about 1.9 g, about 2.0 g, about 2.1 g, about 2.2 g, about 2.3 g, about 2.4 g, about 2.5 g, about 2.6 g, about 2.7 g, about 2.8 g. about 2.9 g, about 3.0 g, about 3.1 g, about 3.2 g, about 3.3 g, about 3.4 g, or about 3.5 g. In certain embodiments, the closure systems as disclosed herein have between 0.8 g to 2.5 g of polymeric material. In specific embodiments, the closure systems as disclosed herein have at least 0.8 g of polymeric material. In specific embodiments, the closure systems as disclosed herein have no more than 2.5 g of polymeric material.


An example of the sealing portion and the support being mated together is illustrated in FIGS. 9A-9D. In FIG. 9A, the sealing portion 700 is positioned over the support 800 such that the plurality of mating features of the sealing portion 700 are in alignment with the plurality of apertures 802 in the support 800. The sealing portion 700 and support 800 are fitted together along the direction of the arrow in FIG. 9A. The sealing portion 900 can be any sealing portion illustrated in FIGS. 9A-9D, i.e., a scaling portion that includes a stem 702 with aperture 708 or a sealing portion that includes a stem 702 with pin 708a. FIG. 9B illustrates the two components fitted together with the scaling portion 700 sitting within the support 800. FIG. 9C shows the plurality of mating features 706 of the sealing portion 700 protruding through the plurality of apertures 802 in the support 800. As illustrated in FIG. 9D, the plurality of mating features 706 of the scaling portion 700 are shown as posts that can be pressed or flattened, e.g., heat pressed, to form connection 706′ that secures the sealing portion 700 to the support 800. This type of attachment between the sealing portion 700 and the support 800 is only one embodiment and other types of attachment features for these two components, e.g., hooks, e.g., snap hooks, rivets, e.g., semi-tubular rivets, pins, adhesives, welds, and the like, are within the scope of this disclosure.



FIGS. 10A-10F illustrate an embodiment of the sealing portion 700 made fully from polymer materials, i.e., including an overmolded seal on a top surface of a base. As illustrated in FIGS. 10A-10C, the stem 702 is flexible and can bend both at the hinge 710 close to the stem aperture 708 (as illustrated in FIGS. 10A-10C) or stem pin 708a (as illustrated in FIGS. 10D-10F) and at the point where the stem 702 connects to the base 704 of the sealing portion 700. The sealing portion 700 has an O-ring seal 712 formed into a top surface of the base 704 made from a suitable polymeric material, e.g., TPE, TPO, silicon rubber, or the like, with an appropriate hardness for sealing against the lower surface or bottom of the fixed element, e.g., a Shore hardness of 60-70 A. The scaling portion base 704 and stem 702 can be made from a more flexible polymeric material, e.g., PP, PS, PTFE, and other similar materials.



FIGS. 11A-11C. 12A-12D, and 13A-13E illustrate the assembly of the closure system disclosed herein from the individual components, i.e., the fixed element, the top cover, and the sealing portion. As illustrated in FIG. 11A, the top cover 600 as illustrated in FIGS. 6A-6G including the mated lever portion 602 and slider portion 604 is positioned over the fixed element 100. In particular, the elongated slot 608 of the slider portion 604 is positioned over the protruding shaft 105 from the top surface of the fixed element 100 and the plurality of mating features of the lever portion 400 are positioned over the first aperture 102, i.e., the dispensing aperture, of the fixed element 100. FIG. 11B shows the top cover including the mated lever portion 602 and slider portion 604 and fixed element 100 fitted together, with the protruding shaft 105 from the top surface of the fixed element 100 extending through the elongated slot 608 of the slider portion 604. The plurality of mating features of the lever portion 604 contact the periphery of the first aperture 102, i.e., the dispensing aperture, of the fixed element 100 to aid in securing the top cover 600 to the fixed element 100. In operation, i.e., when the top cover slides to expose the first aperture 102, i.e., the dispensing aperture, of the fixed element 100, the plurality of mating features of the slider portion 604 act as guides for the top cover 600, providing for an even sliding of the top cover back and forth along the axis of the slider portion 604. To secure the top cover 600 to the fixed element 100, the protruding shaft 105 of the fixed element 100 that extends through the elongated slot 608 of the slider portion 604 can be clinched or flattened down to form connection 105′ sufficient to secure the components while permitting the slider portion 604 to slide along its elongated slot 608.



FIGS. 12A-12D illustrate operation of the mated top cover and fixed element. As illustrated in FIGS. 12A and 12C, the top cover 600 can slide back and forth along the elongated slot 608 of the slider portion 604 with the clinched protruding shaft 105′ of the fixed element 100 acting as a slide stop to limit the length of sliding when exposing the first aperture 102, i.e., the dispensing aperture, of the fixed element 100. FIGS. 12B and 12D illustrate a bottom perspective view of FIGS. 12A and 12C, showing the plurality of mating features 408a of the lever portion 400 in contact with the periphery of the first aperture 102, i.e., the dispensing aperture, of the fixed element 100. As disclosed herein, the plurality of mating features 604a of the slider portion 604 act as guides for the top cover 600, providing for an even sliding of the top cover back and forth along the elongated slot 608 of the slider portion 604. The plurality of mating features 604a of the slider portion 604, illustrated as snap hooks in FIGS. 12B and 12D, have the hook portion extending beyond the periphery of the first aperture 102, i.e., the dispensing aperture, to further secure the top cover to the fixed element 300. In the illustrated configuration, the pair of substantially parallel sides of the first aperture 102 interface with the snap hook mating features 604a such that the top cover 600 slides straight along the substantially parallel sides of the first aperture 102.



FIGS. 13A-13G illustrate the attachment of the sealing portion to the mated top cover and fixed element to form the complete closure system disclosed herein. As illustrated in FIG. 13A, the free end of the stem 702 of the sealing portion 700 is passed through the aperture 612 of in the top cover 600, i.e., the mated slider portion 604 and lever portion 602. As disclosed herein, the free end of the stem 702 includes a pin 908a that is dimensioned to fit into second aperture 614 of the lever portion 602. In FIG. 13B-13D, the stem 702 is secured to the lever portion 602 by placing the pin 708a of the stem 702 into the second aperture 614. The pin 708a, as illustrated in FIG. 13E, can be clinched, pressed, e.g., heat pressed, or flattened down to secure the free end of the stem 702 to the lever portion 602. In this configuration, the lever portion 602, when engaged against its hinge, causes the plug 606 to be removed from the opening, i.e., second aperture, in the clinched or pressed down protruding shaft 105′ and the sealing portion 700 to move a predetermined distance away from the bottom surface of the fixed element 100. This release of the sealing portion 700 a predetermined distance from the bottom surface of the fixed element 100 allows the top cover and sealing portion 700 to be moved, i.e., slid, along the elongated slot 608 of the slider portion 604 and expose the first aperture, i.e., the dispensing aperture, of the fixed element 100. As illustrated in FIGS. 13F-13G, when the lever portion 602 is closed by connecting the lever portion 602 to the movable closure of the slider portion 604, the scaling portion 700 is pulled back up into the bottom surface of the fixed element 100 to create the seal over the first aperture, i.e., the dispensing aperture, of the fixed element 100. In parallel with the recreation of the initial seal over the first aperture, i.e., the dispensing aperture, of the fixed element 100, and as illustrated in FIGS. 13F-13G, the plug 606 of the lever portion 602 is reinserted into the opening, i.e., second aperture, of the clinched or pressed down protruding shaft 105′ of the fixed element 100 and protrudes below the lower surface of the fixed element 100 with the sealing portion 700 held against the bottom surface of the fixed element 100 to create the sealed container. As disclosed herein, the plug 606 of the lever portion 602, when the lever portion 602 is initially lifted from the fixed element 100, acts as an initial release point for any pressure within the resealable container. When the pressure in the resealable container is released, the opening, i.e., second aperture, of the clinched or pressed down protruding shaft 105′ of the fixed element 100 acts as an aeration valve, permitting the contents of the resealable container to be emptied with a controlled flow through the first aperture, i.e., the dispensing aperture, of the fixed element 100.



FIGS. 14A-14D illustrate different embodiments of the final as-assembled closure system for a resealable container disclosed herein. In particular, the views illustrated in FIGS. 14A-14B correspond to the embodiment illustrated in FIGS. 2A-2G, i.e., the lever portion 202a and slider portion 202b of the top cover are made from separate polymer components fastened together. The views illustrated in FIGS. 14C-14D correspond to the embodiment illustrated in FIGS. 5A-5D, i.e., the lever portion 502 and slider portion 504 of the top cover made from a polymer and are unitarily formed from a polymer material with a central hinge. In both embodiments of the closure system, independent of the material used for fabrication, the operation is substantially identical, i.e., each has a lever portion that disengages a sealing portion a predetermined distance from the bottom surface of the fixed element to allow the entire movable closure element to slide via the slider portion and expose the first aperture, i.e., the dispensing aperture, of the fixed element. Further, both embodiments include a plug in the lever portion that fits into the opening, i.e., second aperture, of the protruding shaft of the fixed element connected to the elongated slot of the slider portion. As disclosed herein, the plug, when removed from the opening, i.e., second aperture, of the protruding shaft of the fixed element, acts to initially permit depressurization of the resealable container, should it contain pressurized contents. When open, the opening, i.e., second aperture, of the protruding shaft of the fixed element also acts as an aeration valve to permit a smooth flow of the contents of the resealable container from the first aperture, i.e., the dispensing aperture, of the fixed element.



FIGS. 15A-15C illustrate various views of another embodiment of the final as-assembled closure system for a resealable container disclosed herein. As shown in FIGS. 15A-15C, once the lever portion and slider portion of the top cover 600, sealing portion 700, and fixed element 100 are fully assembled, e.g., as shown in FIGS. 11A-11C, 12A-12D, and 13A-13G, the movable closure system can be secured or otherwise include a tamper proof or tamper evident seal 1500 as shown by the arrow in FIG. 15A. As illustrated, the tamper proof or tamper evident seal can be a strip of tamper tape, foil tape, or another similar marker connected to the lever portion of the top cover 600 and the top surface of the fixed element 100 to provide an end user an indication that the resealable container has been tampered with or otherwise has lost its integrity. This is only one type of connection for a tamper proof or tamper evident seal, and other types of indicators for the integrity of the resealable can are within the scope of this disclosure. The tamper evident seal 1500 may provide an indication that the original seal from the manufacturer has been broken such that a user may assess the safety of the contents of the resealable container, or whether the contents of the resealable container have been altered. The indication may be any indication that notifies the user that the manufacturing seal has been at least partially broken, for example by movement of the component, or change in color of the component. The component can be a sub-component of the top cover, sealing portion, fixed element, or a combination thereof. For example, the sub-component can be a portion of the top cover, such that when a portion of the top cover or another portion of the closure system is manipulated in some way, the sub-component may indicate that the container has been at least partially opened, tampered with, or otherwise altered. The tamper evident seal 1500 can provide relevant information about the contents of the resealable container, e.g., type of contents, flavor of contents, color of contents, and the like. The tamper evident seal 1500 can further provide cosmetic markings, such as a manufacturer's name, logo, or other trademark or trade dress.


As disclosed herein, the closure system includes a movable closure element connected to a fixed element and is secured to a container body. The moveable closure element, when disengaged from the fixed element, can be translated along the fixed element to expose the first aperture, i.e., the dispensing aperture, of the fixed element. Methods of opening and closing the resealable container including the closure system disclosed herein are illustrated in FIGS. 16A-16D and 17A-17C. In FIG. 16A, the closure system is depicted at a first position with the lever portion connected to the slider portion and the top cover positioned over the first aperture, i.e., the dispensing aperture, of the fixed element. In this first position, the resealable container is closed, i.e., sealed, to the atmosphere as indicated by the intact tamper tape on the lever portion. To open the closure system, the movable part of the lever portion is disengaged from the slider portion and rotated or lifted upwards such that the movable part of the lever portion is substantially orthogonal with the remainder of the movable closure element as illustrated in FIG. 16B. In rotating or lifting the movable part of the lever portion to this position, the sealing portion is disengaged from the lower surface of the fixed element and the plug is removed from the opening, i.e., second aperture, in the protruding shaft of fixed element, releasing any pressure within the resealable container while leaving the first aperture, i.e., the dispensing aperture, of the fixed element covered. As the sealing portion is disengaged and the pressure within the resealable container dissipated, the movable closure element can be slid back against the slider portion coupled to the protruding shaft of the fixed element to expose the first aperture, i.e., the dispensing aperture, of the fixed element as illustrated in FIG. 16C. The movable part of the lever portion can be lowered towards the remainder of the movable closure element to provide access to the contents of the resealable container as illustrated in FIG. 16D. This motion of the movable part of the lever portion partially reengages the scaling portion against the lower surface of the fixed element and provides sufficient friction to keep the movable part of the lever portion from closing on itself.


The resealable container can be rescaled by substantially reversing the steps used to open the resealable container as illustrated in FIGS. 17A-17C. In FIG. 17A, the movable part of the lever portion is lifted from its resting position on the surface of the movable closure element to disengage the sealing portion from its partial engagement with the lower surface of the fixed element. As the sealing portion is disengaged, the movable closure element can be slid back against the slider portion coupled to the protruding shaft of the fixed element to close the first aperture, i.e., the dispensing aperture, of the fixed element as illustrated in FIG. 17B. The sealing portion can be reengaged with the lower surface of the fixed element and the plug of the lever portion reinserted into the opening, i.e., second aperture, of the protruding shaft of the fixed element by the movable part of the lever portion being returned to the first position and secured to the slider portion, thus resealing the resealable container.


In operation, the closure system disclosed herein is constructed and arranged to be attached or mated with standard can bodies using equipment common to the canning and beverage industries. Following the filling process, the closure system disclosed herein can be fed into a seamer, which is a machine that attaches the can ends to the filled cans and creates a seam at the mating point using rollers. The seaming process is often performed at high speeds, up to about 2,600 can ends per minute. In order to achieve this level of seaming and filling, the closure system disclosed herein is constructed and arranged, by way of the profile and total height of the closure system, to be stacked on top of each other and placed in a trough that feeds the seamer. The closure system on the bottom of the stack slides out of the trough and is fed directly into the seamer. An example of how a plurality of the finished closure systems appear when stacked, is illustrated in FIG. 18. As illustrated, each closure system stacks one on top of the other, with the total installed height of the movable closure element not exceeding the height of the rim of the fixed element. The low profile of the closure system disclosed herein ensures that the closure system will slide out from the bottom of the stack with ease and without the need for a spacer or separator that would slow down the production processes. In short, closure systems disclosed herein can be integrated into existing production lines with no changes to the equipment, process, or methods currently used in the filling and canning plants.



FIGS. 19A-19C illustrate the assembly of the resealable container and the resulting finished resealable container using a container body and a closure system disclosed herein. In general, the closure system can be connected to the container body using existing equipment typical in the canning industry that positions the closure system on top of a filled container body, as illustrated in FIG. 19A. The container body is constructed and arranged to accept the fixed element, which as disclosed herein begins as a shell, i.e., a can end, e.g., a B64 shell available from Ball Corporation, Ardagh Metal packaging (AMP), and Crown Holdings inc., a CDL shell available from Ball Corporation and Ardagh Metal packaging (AMP), or a SUPEREND® shell available from Crown Holdings Inc. As the fixed end is an industry-standard shape and dimension, the rim at the perimeter of the fixed end is configured to rest on the opening of the container body as illustrated in FIG. 19B. The rim of the fixed end may be rolled around the perimeter of the opening of the can body, permanently connecting the container body to the fixed end with a gas-tight double seam seal as illustrated in FIG. 19C. As illustrated, the resealable container is of the same dimensions as a standard U.S. beverage can, e.g., 12 fluid ounce can or 16 fluid ounce can. The closure system as disclosed herein can be modified without loss of function to fit other common container, e.g., can, types, such as slim cans, e.g., 133 mm high by 53 mm diameter, and brite cans, e.g., 32 fluid ounce cans. Thus, once installed onto filled container bodies, the resealable container disclosed herein is indistinguishable from existing non-resealable canned beverages and can stored, handled, and dispensed using identical equipment common to industries such as beverage distribution and cargo transport.


In accordance with certain examples, there is provided a method of manufacturing a resealable container, e.g., a resealable container as disclosed herein. The method includes providing a container body, e.g., a beverage can. The method includes providing a closure system attachable to the container body, e.g., a closure system as described herein. The closure system includes a fixed element constructed and arranged to be secured to the container and a movable closure element. The fixed element includes a can end having a first aperture and a protruding shaft including a second aperture spaced laterally apart from the first aperture.


The movable closure element includes a top cover and a sealing portion. The top cover includes a lever portion, a slider portion, and a plug. The lever portion and slider portion are constructed and arranged to be engaged at least partially with the first aperture of the fixed element and the protruding shaft to permit lateral movement of the top cover along at least a portion of the first aperture when the lever portion is engaged. In a first position, the top cover covers the first aperture of the fixed element and the plug fits into the second aperture of the protruding shaft. The sealing portion includes a stem connected to the lever portion with the stem being constructed and arranged such that, as the lever portion is lifted and the plug is removed from the second aperture of the protruding shaft, the sealing portion moves in a downward direction away from the fixed element to a predetermined distance from a bottom surface of the fixed element. As the top cover is moved laterally from the first aperture of the fixed element to the second aperture of the fixed element, the sealing portion moves laterally at the predetermined distance with the top cover and the first aperture of the fixed element is exposed. The method further includes attaching the closure system to the container body, thereby manufacturing the resealable container.


In some embodiments, the fixed element is manufactured from a metal, e.g., various types of steels, tin, or aluminum or aluminum alloys, such as 5000 series aluminum that is an alloy of aluminum with magnesium. In some embodiments, at least one of the lever portion and slider portion is made from a metal as disclosed herein. In some embodiments, at least one of the lever portion and slider portion is made from a polymer, e.g., a polypropylene (PP), thermoplastic elastomer (TPE), thermoplastic polyolefin elastomer (TPO), polyethylene terephthalate (PET), high-density polyethylene (HDPE), polyvinylchloride (PVC), low-density polyethylene (LDPE), polystyrene (PS), or other food safe polymers. For example, one or both of the plug and the scaling portion may be manufactured from a polymer that permits formation of a seal, e.g., a hermetic seal, as disclosed herein. In specific embodiments, the sealing portion may include more than one polymer, e.g., a PP structure with a TPE O-ring as disclosed herein.


In accordance with certain examples, there is provided a method of providing a closure system attachable to a container, e.g., a resealable container as disclosed herein. The method includes providing a fixed element attachable to the container. The fixed element includes a can end having a first aperture and a protruding shaft including a second aperture spaced laterally apart from the first aperture.


The method includes providing a movable closure element. The movable closure element includes a top cover and a sealing portion. The top cover includes a lever portion, a slider portion, and a plug. The lever portion and slider portion are constructed and arranged to be engaged at least partially with the first aperture of the fixed element and the protruding shaft to permit lateral movement of the top cover along at least a portion of the first aperture when the lever portion is engaged. In a first position, the top cover covers the first aperture of the fixed element and the plug fits into the second aperture of the protruding shaft. The sealing portion includes a stem connected to the lever portion with the stem being constructed and arranged such that, as the lever portion is lifted and the plug is removed from the opening, i.e., second aperture, of the protruding shaft, the sealing portion moves in a downward direction away from the fixed element to a predetermined distance from a bottom surface of the fixed element. As the top cover is moved laterally from the first aperture of the fixed element to the second aperture of the fixed element, the sealing portion moves laterally at the predetermined distance with the top cover and the first aperture of the fixed element is exposed.


In some embodiments, the method further includes providing instructions to assemble the closure system from the fixed element and the movable closure element. The assembly instructions include connecting the lever portion and the slider portion to form the top cover. The assembly instructions include connecting the top cover to the fixed element. The assembly instructions further include connecting the sealing portion to the lever portion by passing the stem through a bottom of the fixed element and an aperture on the top cover and onto a structural element of the lever portion permitting connection of the stem and top cover.


EXAMPLES

The function and advantages of these and other embodiments can be better understood from the following examples. These examples are intended to be illustrative in nature and are not considered to be in any way limiting the scope of the disclosure.


Example 1—Exemplary Shells for Fixed Ends


FIGS. 20A-20C illustrates the use of industry standard shells, i.e., can ends, useful for the formation of can ends for the closure system disclosed herein. Manufacturers design different can ends in order to reduce the amount of aluminum needed without compromising the strength and ability to withstand the high internal pressure of a filled beverage can. Can ends or shells are available in a number of sizes based on outer diameter, including 200 mm, 202 mm, 204 mm, 206 mm and 300 mm, with the most common can shell on the market being the 202 can end. In FIGS. 20A-20C, the 202 can end was compared between three manufacturers: a B64 shell (FIG. 20A), available from Ball Corporation, Ardagh Metal packaging (AMP), and Crown Holdings Inc, a CDL+ shell (FIG. 20B), available from Ball Corporation and Ardagh Metal packaging (AMP), and a SUPEREND® shell (FIG. 20C), available from Crown Holdings Inc.


All three can ends shared the same outer diameter, i.e., 202 mm, and were stamped out of a pre-coated aluminum 5182 or 5052 stock material with the same material thickness of 0.2083 mm, i.e., 32 gauge. The main differences between the various can ends is the diameter of the shell plain, the depth of the shell plain, i.e., the distance between the shell rim and the shell plain, and the rim shape. The B64 can end as illustrated in FIG. 20A represented the shell with the largest shell plain diameter, i.e., D1=approximately 46.42 mm and shell plain depth, e.g., H1=approximately 4.48 mm, and thus provided the most suitable shell for prototyping the closure system disclosed herein. Other shells such as the CDL+ shell of FIG. 20B, i.e., having D2=approximately 43.55 mm and H2=approximately 4.17 mm, and the SUPEREND® shell of FIG. 20C, i.e., having D3=approximately 42.00 mm and H3=approximately 4.32 mm, were smaller in lateral surface area than the B64 can end but are nonetheless suitable for use with the closure system as disclosed herein. The B64 can end had a simple parabolic shape from the rim to the top surface of the shell plain whereas the CDL+ shell and SUPEREND® shell have more complex geometries from the rim to the shell plain.


Example 2—Exemplary Can End for Fixed Ends


FIGS. 21A-21B illustrate an example shell, specifically a B64 shell, that has been manufactured into a can end including a first aperture and a second aperture spaced laterally apart from the first aperture with the dimensions given in mm. As illustrated in FIG. 21A, a B64 shell was stamped with aperture having substantially parallel sides and an overall oblong profile. The aperture illustrated was a “Double D” type aperture with a width W1=13.00 mm and had two different radii of curvature for the curved portions at the ends of the substantially parallel sides. The curve where the contents of the resealable container are dispensed had a larger radius, i.e., R1=9.25 mm, than the curve positioned closer to the second aperture, i.e., R2=9.10 mm. This difference provided for increased strength of the can end. The can end illustrated in FIG. 21B, viewed along cross-section line 21B in FIG. 21A, had a plane thickness T1 of 0.30 mm. The protruding shaft of the can end had a height H4 of 1.25 mm and a wall thickness T2 of 0.25 mm. The opening, i.e., second aperture, in the protruding shaft had a diameter D4=3.45 mm through which the plug of the lever portion of the top cover passed through.


Example 3—Exemplary Top Cover

As disclosed herein, the top cover of the movable closure system includes a lever portion and a slider portion that are mated together and secured to the fixed element. An exemplary embodiment of a top cover made from stamped metal components is illustrated in FIGS. 22A-24F, with FIGS. 22A-22B illustrating a complete top cover, FIGS. 22C-22D illustrating a slider portion, and FIGS. 22E-22F illustrating a lever portion. As illustrated in FIG. 22A, the width of the exposed part of the slider portion W2 (and also the lever portion) was 18 mm which ensured that sufficient metal of the can end was exposed such that a tamper-evident seal could be secured to the can end and any stamped-on information, e.g., deposit information or government-mandated information, was visible to a consumer. The exposed part of the slider portion, having a length L1 of 14.2 mm and thickness T3 of 1.12 mm, included a rectangular aperture having longest linear dimension R3 of 9 mm, a pair of snap hooks, and a pair of oppositely positioned orthogonal posts at the periphery that permitted connection to other components of the movable closure element, i.e., the slider portion. The lever portion covered a part of the slider portion that included the retention hook for the lever portion. As typical beverage containers are round, the lever portion was formed using curved ends that substantially match the profile of the can shell.


An exemplary embodiment of a slider portion is illustrated in FIGS. 22C-22D. In FIGS. 22C-22D, the slider portion included a body having a width W3 of 19.67 mm and length L5 of 36 mm. The slider portion included an elongated slot having length L4 of 8.5 mm that was dimensioned to permit the protruding shaft of the fixed element to pass through, i.e., the width W4 of the slot was 4.00 mm. The larger rectangular aperture in the center of the slider portion was sized to permit the stem of the sealing portion to pass through, having a longest linear dimension R3 of 9 mm and width W5 of 2.45 mm. The slider portion was constructed and arranged to permit connection of the lever portion and was substantially thinner than the lever portion, i.e., T5 was 0.51 mm. Disposed at the periphery of the slider portion were a pair of winged openings that were bent upwards, i.e., orthogonal to the plane of the slider portion, to accept the corresponding posts of the lever portion and form a hinge. The height H6 of the pair of winged openings when bent upwards was 2.73 mm. At the end of the slider portion was a moveable closure, illustrated as a flexible snap hook, having a height H5 of 3.00 mm that was sized to fit into the rectangular aperture at the end of the lever portion.


The lever portion illustrated in FIGS. 22E and 22F, having a length L6 of 24.7 mm, thickness T6 of 1.12 mm, and width W9 of 18 mm, included a pair of oppositely positioned orthogonal posts at the periphery that connect to the winged apertures of the slider portion when those are bent up to form a hinge. The post-to post width W6 was 21 mm and the width W7 of each post was 1.4 mm. The lever portion included a number of apertures that interfaced into components of the slider portion and/or scaling portion. The aperture closest to the pair of oppositely positioned orthogonal posts that allowed for the sealing portion to connect to the top cover had a diameter D6 of 2.4 mm. The larger rectangular aperture disposed at the free end of the lever portion was sized to permit the movable closure element, e.g., spring hook, of the slider portion to pass through, having a width W8 of 2.2 mm. The lever portion also aperture that was filled by the plug used as seal and an aeration valve for the resealable container. The plug had an overall length H7 of 5.05 mm. When inserted into the largest aperture of the lever portion, the plug had a protrusion length L3 of 2.45 mm and a diameter D5 of 3.45 mm.


Example 4—Exemplary Sealing Portion

As disclosed herein, the movable closure system includes a scaling portion having a stem that is secured to the lever portion. An exemplary embodiment of a sealing portion fixed within a support is illustrated in FIGS. 23A-23D. As illustrated in FIGS. 23A-23D, the scaling portion included a stem having width W10 of 5.00 mm, a height H8 of 19.75 mm from the bottom of the support, a height H10 of 17.45 mm from the top surface of the base, and a thickness T7 of 0.70 mm that was disposed orthogonally to the base and attached to a top surface of the base at one end. The stem included at its free end a pin having diameter D9 of 2.25 mm that was dimensioned to connect to the second, smaller aperture of the lever portion of the top cover as illustrated in FIGS. 22A and 22E. The stem further included a hinge that permitted it to bend when connected to the lever portion. In operation, the stem's 0.70 mm thickness provided the flexibility for being raised and lowered when the movable part of the lever portion was actuated. Also attached to the top surface of the base were a pair of spacers flanking the stem, each having a diameter D7 of 2.00 mm. These included spacers on the top surface were dimensioned to ensure that when the movable closure is in the fourth position, i.e., opened position, the polymetric O-ring seal was not in full contact with the bottom of the fixed element allowing air to pass through the protruding shaft on the fixed element and into the container without being impeded by the seal portion, thus aerating the resealable container when pouring contents from the resealable container. As further illustrated in FIG. 23A, the top surface of the base included two depressions having L7 of 1.45 mm, L8 of 4.80 mm, and W11 of 2.5 mm that were designed to receive or nest with the two snap hooks, i.e., mating features, of the sealing portion when the resealable container is in the first position, i.e., sealed position.


The base, with the TPE overmolded O-ring and aluminum support attached, had an overall diameter R5 of 12.35 mm. As illustrated, the base with the TPE overmolded O-ring without the support attached had a chamfered circumferential profile with an outer diameter R4 of 11.25 mm. The base with the support attached had an overall thickness T8 of 2.76 mm and a support thickness T9 of 2.3 mm. As disclosed herein, the sealing portion included a plurality of mating features to connect the sealing portion to the support. As shown in FIGS. 23B-23D, the sealing portion had three posts protruding from the bottom surface that were sized to pass through a matching set of apertures on the support. The posts had a diameter D8 of 2.25 mm and a length L9 from the bottom surface of the support of 1.75 mm. Here, the sealing portion was made from a polypropylene homopolymer that has excellent chemical resistance, workability, and very low moisture absorbance. In addition, polypropylene homopolymers are approved by the United States Food and Drug Administration (FDA) for direct food and beverage contact. The periphery of the base included an O-ring made from an overmolded TPE that pressed into the lower surface of the fixed element which created the seal.


Although the containers and methods of making them have been described above in terms of certain examples and embodiments, various alterations, modifications, substitutions, additions and improvements will be readily apparent to the person of ordinary skill in the art, given the benefit of the disclosure. Such alterations, modifications, substitutions, additions and improvements are intended to be within the scope and spirit of the containers disclosed here. It is also intended that the indefinite articles “a” and “an,” as used above and in the appended claims, mean one or more of the articles which they modify, and that the terms “include.” “including” and “having” are interchangeable with the open ended term “comprising.” Only the transitional phrases “consisting of” and “consisting essentially of,” are closed or semi-closed transitional phrases, respectively, with respect to the claims.


Use of ordinal terms such as “first,” “second,” “third,” and the like in the claims to modify a claim element does not by itself connote any priority, precedence, or order of one claim element over another or the temporal order in which acts of a method are performed, but are used merely as labels to distinguish one claim element having a certain name from another element having a same name (but for the use of the ordinal term) to distinguish the claim elements.


Those skilled in the art should appreciate that the parameters and configurations described herein are exemplary and that actual parameters and/or configurations will depend on the specific application in which the systems and techniques of the disclosure are used. Those skilled in the art should also recognize, or be able to ascertain, using no more than routine experimentation, equivalents to the specific examples of the disclosure. It is therefore to be understood that the examples described herein are presented by way of example only and that, within the scope of the appended claims and equivalents thereto, the disclosure may be practiced otherwise than as specifically described.

Claims
  • 1. A closure system for sealing and resealing a container, comprising: a fixed element comprising a can end comprising a first aperture and a spaced laterally apart from the first aperture, the fixed element constructed and arranged to be secured to the container; anda movable closure element comprising: a top cover comprising a lever portion, a slider portion, and a plug, the slider portion constructed and arranged to be engaged at least partially with the first aperture of the fixed element, the top cover covering the first aperture of the fixed element and the plug fitting in the second aperture of the fixed element in a first position; anda sealing portion comprising a stem connected to the lever portion, the stem constructed and arranged such that, as the lever portion is lifted and the plug is removed from the second aperture of the fixed element, the sealing portion moves in a downward direction away from the fixed element to a predetermined distance from a bottom surface of the fixed element, and as the top cover is moved laterally from the first aperture of the fixed element to the second aperture of the fixed element, the sealing portion is moved laterally at the predetermined distance with the top cover and the first aperture of the fixed element is exposed.
  • 2. The closure system of claim 1, wherein at the first position the top cover covers the first aperture, the lever portion is resting on and secured to the slider portion and the sealing portion is in contact with the bottom surface of the fixed element.
  • 3. The closure system of claim 2, wherein at a second position, the top cover covers the first aperture, the lever portion is lifted from the slider portion to remove the plug from the second aperture and the sealing portion is spaced a predetermined distance from the bottom surface of the fixed element.
  • 4. The closure system of claim 3, wherein at a third position, the top cover and the sealing portion expose the first aperture of the fixed element and the sealing portion is spaced a predetermined distance from the bottom surface of the fixed element.
  • 5. The closure system of claim 4, wherein at a fourth position, the top cover and the sealing portion expose the first aperture of the fixed element, the lever portion is lowered towards the slider portion, and the sealing portion is in contact with the bottom surface of the fixed element.
  • 6. The closure system of claim 5, wherein at a fifth position, the top cover and the sealing portion expose at least a portion of the first aperture of the fixed element, the lever portion is lifted relative to the slider portion, and the sealing portion is spaced a predetermined distance from the bottom surface of the fixed element.
  • 7. The closure system of claim 6, wherein at a sixth position, the top cover and sealing portion cover the first aperture of the fixed element, and the sealing portion is spaced a predetermined distance from the bottom surface of the fixed element.
  • 8. The closure system of claim 7, wherein at a seventh position the top cover and sealing portion cover the first aperture of the fixed element, the lever portion is lowered to connect to the slider portion and insert the plug into second aperture, and the sealing portion is in contact with the bottom surface of the fixed element.
  • 9. The closure system of claim 1, wherein the second aperture is incorporated into a protruding shaft extending above a top surface of the fixed element.
  • 10. The closure system of claim 9, wherein the protruding shaft extends about 1 mm to about 5 mm above top surface of the fixed element.
  • 11. The closure system of claim 9, wherein the protruding shaft secures and guides the top cover when in motion.
  • 12. The closure system of claim 11, wherein the protruding shaft limits the lateral motion of the top cover.
  • 13. The closure system of claim 1, wherein the fixed element has a thickness of about 0.208 mm to about 0.750 mm.
  • 14. The closure system of claim 1, wherein the first aperture has at least one pair of parallel sides.
  • 15. The closure system of claim 1, wherein the lever portion and slider portion are operably coupled to form a hinge.
  • 16. The closure system of claim 1, wherein the slider portion comprises a plurality of mating features to secure the top cover to the fixed element.
  • 17. The closure system of claim 16, wherein the plurality of mating features of the slider portion guide the lateral motion of the top cover.
  • 18. The closure system of claim 17, wherein the plurality of mating features comprise tabs.
  • 19. The closure system of claim 9, wherein the slider portion comprises an elongated slot dimensioned to permit sliding against the protruding shaft.
  • 20. The closure system of claim 1, wherein the lever portion includes a stem aperture adapted to receive the stem of the sealing portion.
  • 21. The closure system of claim 20, wherein the stem of the sealing portion includes a pin at a free end adapted to fit into the stem aperture of the lever portion.
  • 22. The closure system of claim 20, wherein the stem of the sealing portion includes an aperture at a free end adapted to secure the stem aperture to the aperture of the lever portion with a fastener.
  • 23. The closure system of claim 21, wherein the sealing portion comprises a base connected orthogonally to the stem and a polymeric seal at the periphery of the base.
  • 24. The closure system of claim 1, wherein the stem is hinged to the sealing portion.
  • 25. The closure system of claim 24, wherein the sealing portion comprises a support operatively coupled to a bottom surface of the base.
  • 26. The closure system of claim 1, wherein at least one of the top cover and the sealing portion is made of a material that is compatible with the fixed element.
  • 27. The closure system of claim 1, wherein the lever portion and the slider portion are made from a metal.
  • 28. The closure system of claim 1, wherein the plug and the sealing portion are made of a polymeric material.
  • 29. The closure system of claim 28, wherein the total weight of the polymeric material forming the plug and sealing portion is less than 2.5 grams.
  • 30. The closure system of claim 28, wherein the sealing portion is made of two or more different polymeric materials.
  • 31. The closure system of claim 30, wherein a body of the sealing portion is made from a first polymeric material and a seal of the sealing portion is made from a second polymeric material, the first polymeric material having a greater Shore hardness than the second polymeric material.
  • 32. The closure system of claim 31, wherein the plug and the seal of the sealing portion are made from the same polymeric material.
  • 33. The closure system of claim 32, wherein the plug, when inserted into the second aperture, maintains a seal.
  • 34. The closure system of claim 1, wherein the lever portion is constructed and arranged to secure the sealing portion in a resting or sealing position.
  • 35. The closure system of claim 1, wherein further comprising a tamper-proof feature in contact with one or more of the lever portion and fixed element.
  • 36. The closure system of claim 1, wherein the closure system, when connected to a container body, can withstand an internal pressure up to about 10 bar.
  • 37. A method of manufacturing a resealable container, comprising: providing a container body;providing a closure system connectable to the container body, the closure system comprising:a fixed element comprising a can end comprising a first aperture and a second aperture spaced laterally apart from the first aperture, the fixed element constructed and arranged to be secured to the container; anda movable closure element comprising: a top cover comprising a lever portion, a slider portion, and a plug, the slider portion constructed and arranged to be engaged at least partially with the first aperture of the fixed element, the top cover covering the first aperture of the fixed element and the plug fitting in the second aperture of the fixed element in a first position; anda sealing portion comprising a stem connected to the lever portion, the stem constructed and arranged such that, as the lever portion is lifted and the plug is removed from the second aperture of the fixed element, the sealing portion moves in a downward direction away from the fixed element to a predetermined distance from a bottom surface of the fixed element, and as the top cover is moved laterally from the first aperture of the fixed element to the second aperture of the fixed element, the sealing portion is moved laterally at the predetermined distance with the top cover and the first aperture of the fixed element is exposed; andattaching the closure system to the container body, thereby manufacturing the resealable container.
  • 38. A method of providing a closure system attachable to a container, comprising: providing a fixed element comprising a can end comprising a first aperture and a second aperture spaced laterally apart from the first aperture, the fixed element constructed and arranged to be secured to the container;providing a movable closure element comprising: a top cover comprising a lever portion, a slider portion, and a plug, the slider portion constructed and arranged to be engaged at least partially with the first aperture of the fixed element, the top cover covering the first aperture of the fixed element and the plug fitting in the second aperture of the fixed element in a first position, anda sealing portion comprising a stem connected to the lever portion, the stem constructed and arranged such that, as the lever portion is lifted and the plug is removed from the second aperture of the fixed element, the sealing portion moves in a downward direction away from the fixed element to a predetermined distance from a bottom surface of the fixed element, and as the top cover is moved laterally from the first aperture of the fixed element to the second aperture of the fixed element, the sealing portion is moved laterally at the predetermined distance with the top cover and the first aperture of the fixed element is exposed.
  • 39. The method of claim 38, further comprising providing instructions to assemble the closure system from the fixed element and the movable closure element, the assembly comprising: connecting the lever portion and the slider portion to form the top cover;connecting the top cover to the fixed element; andconnecting the sealing portion to the lever portion by passing the stem through the bottom surface of the fixed element and an aperture on the top cover and into a stem aperture of the lever portion.
CROSS-REFERENCE TO RELATED APPLICATIONS

This application is a continuation-in-part of U.S. application Ser. No. 18/207,617, titled “Resealable Can Closure System” filed Jun. 7, 2023, the disclosure of which is incorporated herein by reference in its entirety for all purposes.

Continuation in Parts (1)
Number Date Country
Parent 18207617 Jun 2023 US
Child 18383776 US