Patent Grant
12103749
The present technology relates to a closure device for a container.
Containers, such as bottles, are generally provided with closure devices, such as caps, to fluidly seal the container. In recent years, it has become desirable to tether the closure device to the container in order to avoid losing the closure device. Not only is this a matter of convenience, but it is also becoming a legal requirement in certain jurisdictions.
Tethering of a closure device to its respective container includes certain mechanisms which allow an attachment of the closure device to a tamper-evidence (TE band) band at an open end of the container. Such mechanisms generally allow severing of frangible links between the closure device and the TE band during opening of the closure device yet allow the closure device to stay connected to the TE band and hence the container when in the open configuration. The typical mechanism also allows the closure device to be actuated between closed and open configurations.
In JP 5574582, there is described a cap 2 having a tongue 46 provided between two leashes. The tongue 46 abuts an annular ring 68 of the neck, allowing the cap to remain in the open position.
U.S. Pat. No. 9,010,555 describes a one-piece cap with two lines of weakness (20/34) which break when unscrewing the cap. The top portion of the cap remains attached to the TE band via the strip 36. A notch 32 separates the bridges 301 and 302. However, there is no mechanism to maintain the cap in the open position.
In U.S. Pat. No. 6,474,491, there is described a cap having a tongue 21 between the two film hinges 5. The two film hinges 5 are connected to the ring 3 via a respective arm 4. The tongue can abut the neck of the container when the cap is in the open position, allowing the cap to remain in the open position.
US 2012/0024815 describes a one piece cap comprising a cut line 34 under a hinge 35 to extend a coupling length of the support ring 33 with the cap body 31. In some embodiments, the cap body 31 includes a wedge k1, which when opened, is retained between the support step 15 and the support ring 33.
In JP 49096441, a cap is described with two bands 40 acting as a hinge between the TE band 20 and the cap body 10. A hook 11 is provided between the bands 40. When the cap body 10 is removed, the hook 11 engages the TE band 20 and the jaw A of the neck portion.
Embodiments of the present technology have been developed based on inventors' appreciation of at least one shortcoming associated with the prior art solutions and approaches to retaining a closure device on a container and allowing retention of an open position of the closure device relative to the container. Inventors have noted that prior art solutions which do attempt to retain the cap relative to the container are not able to achieve this at an angle which allows comfortable access to the container for the user. In the case of the drinking bottles, for example, the cap when open interferes with the user drinking from the bottle.
Accordingly, in certain aspects and embodiments of the present disclosure, there is provided a closure device which can actuate between a closed configuration and an open configuration, the open configuration enabling a number of open positions of the cap relative to the container. A retaining mechanism of the closure device enables retention of the cap in a fully open position.
From one aspect, there is provided a closure device for a container, the container having a neck including an annular flange along an exterior surface of the neck, the closure device comprising: a cap body; a tamper evident (TE) band, the TE band defined such that, when assembled onto the container, the TE band is positioned below the annular flange for cooperation therewith; a first hinge and a second hinge defined on the cap body; a leash connected to the TE band, the first hinge and the second hinge; the leash allowing for the cap body to be separated from the TE band during opening, but to remain connected thereto via the leash; a tongue protruding from the cap body between the first hinge and the second hinge; when the cap body is actuated from a closed configuration relative to the neck to a fully open position: the leash is configured to retain the cap body to the TE band; an interaction of the tongue and the neck is configured to retain the cap body in the fully open position.
In certain embodiments, the interaction of the tongue and the neck is direct. The direct interaction may be between a lip at a free end of the tongue and the annular flange.
In certain embodiments, the interaction of the tongue and the neck is indirect via a ratchet defined on the TE band. The ratchet may be located on the TE band, between the first hinge and the second hinge.
In certain embodiments, the cap body and the TE band are implemented in a flip top arrangement via the first hinge and the second hinge.
In certain embodiments, after the cap body is actuated from the closed configuration relative to the neck to the fully open position, the cap body is configured to be actuated back to the closed configuration and be retained in the closed configuration.
In certain embodiments, the cap body is retained in the closed configuration by means of a threaded interface with the neck.
In certain embodiments, the leash is sized to allow the cap body a degree of rotational freedom sufficient to disengage the threaded interface.
In certain embodiments, the cap body is initially connected to the TE band by means of a frangible link.
In certain embodiments, the frangible link is more fragile than the leash. There may be provided a plurality of frangible links positioned outwardly of the first hinge and the second hinge.
In certain embodiments, the annular flange and the TE band are sized such that the annular flange retains the TE band after the cap body is actuated from the closed configuration relative to the neck to the fully open position.
In certain embodiments, the leash is configured to allow the cap body a rotational degree of freedom to separate the cap body from the neck while retaining the cap body to the TE band.
In certain embodiments, the interaction is an interaction of the tongue with the leash at an upper portion of the annular flange.
In certain embodiments, the first hinge and the second hinge define a first pivotal axis; the leash originates from a pivotal point on the TE band, the pivotal point defining a second pivotal axis.
From another aspect, there is provided a mold for forming the closure device by injection molding, the mold comprising a female cavity piece and a male core piece, the female cavity piece and the male core piece defining a molding cavity configured to form the closure device of claim 1.
From a yet further aspect, there is provided a closure device for a container, the container having a neck including an annular flange along an exterior surface of the neck, said closure device comprising: a cap body; a tamper evident (TE) band, the TE band defined such that, when assembled onto the container, the TE band is positioned below the annular flange for cooperation therewith; a first hinge and a second hinge defined on the cap body; a leash connected to the TE band, the first hinge and the second hinge; the leash allowing for the cap body to be separated from the TE band during opening, but to remain connected thereto via the leash; a tongue protruding from the cap body between the first hinge and the second hinge; when the cap body is actuated from a closed configuration relative to the neck to a fully open position: the leash is configured to allow the cap body a rotational degree of freedom to separate the cap body from the neck while retaining the cap body to the TE band; an interaction of the tongue and the neck is configured to retain the cap body in the fully open position.
In certain embodiments, the interaction of the tongue and the neck is direct. The interaction may be between a lip at a free end of the tongue and the annular flange.
In certain embodiments, the interaction of the tongue and the neck is indirect via a ratchet defined on the TE band. The ratchet may be located on the TE band, between the first hinge and the second hinge.
In certain embodiments, the cap body and the TE band are implemented in a flip top arrangement via the first hinge and the second hinge.
In certain embodiments, after the cap body is actuated from the closed configuration relative to the neck to the fully open position, the cap body is configured to be actuated back to the closed configuration and be retained in the closed configuration.
In certain embodiments, the cap body is retained in the closed configuration by means of a threaded interface with the neck.
In certain embodiments, the leash is sized to allow the cap body a degree of rotational freedom sufficient to disengage the threaded interface.
In certain embodiments, the cap body is initially connected to the TE band by means of a frangible link.
In certain embodiments, the frangible link is more fragile than the leash. There may be provided a plurality of frangible links positioned outwardly of the first hinge and the second hinge.
In certain embodiments, the annular flange and the TE band are sized such that the annular flange retains the TE band after the cap body is actuated from the closed configuration relative to the neck to the fully open position.
In certain embodiments, the leash is configured to retain the cap body to the TE band.
In certain embodiments, the interaction is an interaction of the tongue with the leash at an upper portion of the annular flange.
In certain embodiments, the first hinge and the second hinge define a first pivotal axis; the leash originates from a pivotal point on the TE band, the pivotal point defining a second pivotal axis.
From another aspect, there is provided a closure device for a container, the container having a neck including an annular flange along an exterior surface of the neck, said closure device comprising: a cap body; a tamper evident (TE) band, the TE band defined such that, when assembled onto the container, the TE band is positioned below the annular flange; a first leash and a second leash connecting the cap body to the TE band, the first leash and the second leash originating from separate locations on the cap body and converging towards a pivot region on the TE band, the pivot region defining a pivotal axis; a tongue protruding from the cap body; when said cap body is actuated from a closed configuration relative to the neck to a fully open position about the pivotal axis: the first leash and the second leash are configured to retain the cap body to the TE band; an interaction of the tongue and the neck is configured to retain the cap body in the fully open position.
In certain embodiments, the interaction of the tongue and the neck is direct.
The interaction may be between the tongue and an interaction region of the neck, the interaction region of the neck including the annular flange.
In certain embodiments, interaction of the tongue and the neck is indirect via a ratchet defined on the TE band. The ratchet may be wedge-shaped and has a free end which is thinner than a portion of the ratchet connected to the TE band.
In certain embodiments, the cap body and the TE band are implemented in a flip top arrangement via the first hinge and the second hinge.
In certain embodiments, after the cap body is actuated from the closed configuration relative to the neck to the fully open position, the cap body is configured to be actuated back to the closed configuration and be retained in the closed configuration.
In certain embodiments, the cap body is retained in the closed configuration by means of a threaded interface with the neck.
In certain embodiments, the leash is sized to allow the cap body a degree of rotational freedom sufficient to disengage the threaded interface.
In certain embodiments, the cap body is initially connected to the TE band by means of a frangible link.
In certain embodiments, the frangible link is more fragile than the leash. There may be provided a plurality of frangible links positioned outwardly of the first hinge and the second hinge.
In certain embodiments, the annular flange and the TE band are sized such that the annular flange retains the TE band after the cap body is actuated from the closed configuration relative to the neck to the fully open position.
In certain embodiments, the leash is configured to allow the cap body a rotational degree of freedom to separate the cap body from the neck while retaining the cap body to the TE band.
In certain embodiments, the interaction is an interaction of the tongue with the leash at an upper portion of the annular flange.
In certain embodiments, the closure device further comprises a first hinge and a second hinge defined on the cap body and positioned one on either side of the tongue. a first pivotal axis; the leash originates from a pivotal point on the TE band, the pivotal point defining a second pivotal axis.
From another aspect there is provided, a closure device for a container, the container having a neck including an annular flange along an exterior surface of the neck, said closure device comprising: a cap body; a tamper evident (TE) band, the TE band defined such that, when assembled onto the container, the TE band is positioned below the annular flange for cooperation therewith; a first hinge and a second hinge defined on the cap body; a leash connected to the TE band, the first hinge and the second hinge; the leash allowing for the cap body to be separated from the TE band during opening, but to remain connected thereto via the leash; a tongue protruding from the cap body between the first hinge and the second hinge; when the cap body is actuated from a closed configuration relative to the neck to a fully open position: an interaction of the tongue with the leash at an upper portion of the annular flange maintains said cap body in the open position.
In certain embodiments, the cap body and the TE band are implemented in a flip top arrangement via the first hinge and the second hinge.
In certain embodiments, after the cap body is actuated from the closed configuration relative to the neck to the fully open position, the cap body is configured to be actuated back to the closed configuration and be retained in the closed configuration.
In certain embodiments, the cap body is retained in the closed configuration by means of a threaded interface with the neck.
In certain embodiments, the leash is sized to allow the cap body a degree of rotational freedom sufficient to disengage the threaded interface.
In certain embodiments, the cap body is initially connected to the TE band by means of a frangible link.
In certain embodiments, the frangible link is more fragile than the leash. There may be provided a plurality of frangible links positioned outwardly of the first hinge and the second hinge.
In certain embodiments, the annular flange and the TE band are sized such that the annular flange retains the TE band after the cap body is actuated from the closed configuration relative to the neck to the fully open position.
In certain embodiments, the leash is configured to allow the cap body a rotational degree of freedom to separate the cap body from the neck while retaining the cap body to the TE band.
In certain embodiments, the first hinge and the second hinge define a first pivotal axis; the leash originates from a pivotal point on the TE band, the pivotal point defining a second pivotal axis.
From a yet further aspect there is provided a closure device for a container provided with a neck comprising an annular flange along an exterior surface of the neck, said closure device comprising: a cap body; a tamper evident (TE) band, the TE band defined such that, when assembled onto the container, the TE band is positioned below the annular flange for cooperation therewith; a first hinge and a second hinge defined on the cap body defining a first pivotal axis; a leash interconnecting the first hinge and the second hinge to the TE band, the leash originating from a pivotal point on the TE band, the pivotal point defining a second pivotal axis; the leash allowing for the cap body to be separated from the TE band during opening, but to remain connected thereto via the leash; a tongue protruding from the cap body between the first hinge and the second hinge; when the cap body is actuated from a closed configuration relative to the neck to a fully open position: the tongue engages the annular flange to maintain said cap body in the open position.
In certain embodiments, the cap body and the TE band are implemented in a flip top arrangement via the first hinge and the second hinge.
In certain embodiments, after the cap body is actuated from the closed configuration relative to the neck to the fully open position, the cap body is configured to be actuated back to the closed configuration and be retained in the closed configuration.
In certain embodiments, the cap body is retained in the closed configuration by means of a threaded interface with the neck.
In certain embodiments, the leash is sized to allow the cap body a degree of rotational freedom sufficient to disengage the threaded interface.
In certain embodiments, the cap body is initially connected to the TE band by means of a frangible link.
In certain embodiments, the frangible link is more fragile than the leash. In certain embodiments, there are provided a plurality of frangible links positioned outwardly of the first hinge and the second hinge.
In certain embodiments, the annular flange and the TE band are sized such that the annular flange retains the TE band after the cap body is actuated from the closed configuration relative to the neck to the fully open position.
In certain embodiments, the leash is configured to allow the cap body a rotational degree of freedom to separate the cap body from the neck while retaining the cap body to the TE band.
In certain embodiments, the interaction is an interaction of the tongue with the leash at an upper portion of the annular flange.
From another aspect, there is provided a closure device for a container, the container having a neck including an annular flange along an exterior surface of the neck, said closure device comprising: a cap body; a tamper evident (TE) band, the TE band defined such that, when assembled onto the container, the TE band is positioned below the annular flange; a first leash and a second leash connecting the cap body to the TE band, the first leash and the second leash originating from separate locations on the cap body and converging towards a pivot region on the TE band, the pivot region defining a pivotal axis; a tongue protruding from the cap body; a ratchet provided on the TE band; wherein, when said cap body is moved from a closed configuration relative to the neck to a fully open position, an interaction of the tongue with a contact surface of the ratchet maintains said cap body in the open position.
In certain embodiments, the closure device further comprises a first hinge and a second hinge on the TE band, the ratchet being located between the first hinge and the second hinge.
In certain embodiments, the first leash and the second leash each have an expandable configuration.
In certain embodiments, the expandable configuration is elbow-shaped.
In certain embodiments, the ratchet is wedge-shaped and has a free end which is thinner than a portion connected to the TE band.
In certain embodiments, the cap body and the TE band are implemented in a flip top arrangement via the first hinge and the second hinge.
In certain embodiments, after the cap body is actuated from the closed configuration relative to the neck to the fully open position, the cap body is configured to be actuated back to the closed configuration and be retained in the closed configuration.
In certain embodiments, the cap body is retained in the closed configuration by means of a threaded interface with the neck.
In certain embodiments, the leash is sized to allow the cap body a degree of rotational freedom sufficient to disengage the threaded interface.
In certain embodiments, the cap body is initially connected to the TE band by means of a frangible link.
In certain embodiments, the frangible link is more fragile than the leash.
In certain embodiments, the closure device further comprises a frangible link between the each one of the first leash and the second leash and one or more of: the cap body and the TE band, the frangible link being more fragile than the first leash and the second leash.
In certain embodiments, the annular flange and the TE band are sized such that the annular flange retains the TE band after the cap body is actuated from the closed configuration relative to the neck to the fully open position.
In certain embodiments, the leash is configured to allow the cap body a rotational degree of freedom to separate the cap body from the neck while retaining the cap body to the TE band.
From another aspect, there is provided a closure device for a container, the container having a neck including an annular flange along an outer surface of the neck, the closure device comprising: a cap body; a tamper evident (TE) band, the TE band defined such that, when assembled onto the container, the TE band is positioned below the annular flange for cooperation therewith; a first hinge and a second hinge defined on the cap body; a first leash and a second leash connecting the cap body to the TE band, the first leash interconnecting the first hinge and the TE band, and the second leash interconnecting the second hinge and the TE band; the first leash and the second leash originating from separate locations on the TE band; a tongue protruding from the cap body between the first hinge and the second hinge; when the cap body is actuated from a closed configuration relative to the neck to a fully open position: the first leash and the second leash are configured to be separated from the TE band during opening, but to remain connected thereto to retain the cap body to the TE band; an interaction of the tongue and the TE band is configured to retain the cap body in the fully open position.
In certain embodiments, the closure device further comprises a protruding portion extending from the TE band towards the tongue, wherein an interaction of the tongue and the protruding portion is configured to retain the cap body in the fully open position.
In certain embodiments, the tongue comprises a lip extending outwardly from a free end of the tongue, a length of the lip being sufficient to allow rotation of the cap body by more than 180° from the closed configuration to the fully open position.
In certain embodiments, the first leash and the second leash each have a length sufficient to permit the TE band to be spaced from the neck whilst rotating the cap body from the closed configuration towards the fully open position, and to cause the protruding portion to contact the neck when the cap body is released in the fully open position to cause an audible signal. In certain embodiments, the audible signal is a click. In certain embodiments, the TE band comprises at least one rib extending along the TE band from a lower end of the TE band to an upper end of the TE band. The at least one rib stops short of the upper end of the TE band. The lip abuts an end of the at least one rib proximate the upper end of the TE band when in the open position. In certain embodiments, the end of the ribs defines a rotation point about which the lip rotates relative to the TE band.
From a yet further aspect, there is provided a closure device for a container, the container having a neck including an annular flange along an exterior surface of the neck, the closure device comprising: a cap body; a tamper evident (TE) band, the TE band defined such that, when assembled onto the container, the TE band is positioned below the annular flange for cooperation therewith; at least one hinge defined on the cap body; at least one leash connected to the TE band and the at least one hinge, the at least one leash allowing for the cap body to be separated from the TE band during opening, but to remain connected thereto via the at least one leash; a tongue protruding from the cap body adjacent the at least one hinge, the tongue having a lip extending therefrom; at least one rib on the TE band and positioned below the tongue when the cap body is in a closed configuration relative to the neck, wherein, when the cap body is actuated from the closed configuration to a fully open position: the at least one leash is configured to retain the cap body to the TE band; and the lip is arranged to interact with the at least one rib when the cap body is in the fully open position.
In certain embodiments, the at least one rib extends in a direction from the TE band to the cap body. In certain embodiments, the at least one rib extends from a lower end of the TE band and stops short of an upper end of the TE band. In certain embodiments, the at least one rib comprises two ribs, spaced from one another and extending substantially parallel to one another, on the TE band.
In certain embodiments, a connection point of the at least one leash to the TE band is circumferentially spaced from a connection point of the at least one leash to the at least one hinge.
In certain embodiments, the at least one leash has an elongate leash body extending generally circumferentially around a portion of the TE band and having a fold in the elongate leash body. In certain embodiments, the fold has a fold angle which can be increased during opening to extend a length of the leash. In certain embodiments, the fold is positioned about midway along the elongate leash body. In certain embodiments, when the cap body is in the closed configuration, a portion of the elongate leash body not including the fold extends in a manner substantially parallel to a rim of the cap body. In certain embodiments, the fold comprises a first fold arm moveably connected to a second fold arm, the first fold arm and the second fold arm being positioned substantially transversely to the portion of the elongate leash body not including the fold. In certain embodiments, when the cap body is in the closed configuration, a portion of the fold extends into a correspondingly shaped cut-out in the TE band.
In certain embodiments, the length of the leash is resiliently extendible.
In certain embodiments, the at least one leash comprises two leashes, and the at least one hinge comprises two hinges, each hinge of the two leashes being connected to the TE band and a given hinge, the tongue protruding from the cap body between the two hinges.
In certain embodiments, the closure device further comprises a groove defined in an outer surface of the cap body and extending at least partially circumferentially around the cap body and positioned above the tongue, such that when the cap body is in the fully open position, the groove is arranged to interact with a support ledge on the outer surface of the neck to retain the cap body in the fully open position. In certain embodiments, the groove extends partially around a circumference of the cap body.
In certain embodiments, a free end of the lip has a distance of extension from the tongue which is greater than a distance of extension of the rib from the TE band. In certain embodiments, the tongue protrudes downwardly from the cap body, and the lip extends substantially transversely from a free end of the tongue, such that a profile of the tongue and the lip is “L” shaped.
From another aspect, there is provided a closure device for a container, the container having a neck including an annular flange along an exterior surface of the neck, the closure device comprising: a cap body; a tamper evident (TE) band, the TE band defined such that, when assembled onto the container, the TE band is positioned below the annular flange for cooperation therewith; at least one hinge defined on the cap body; at least one leash connected to the TE band, the at least one leash allowing for the cap body to be separated from the TE band during opening, but to remain connected thereto via the at least one leash; the at least one leash having an elongate leash body extending generally circumferentially around a portion of the TE band and having a fold in the elongate leash body; wherein, when the cap body is actuated from a closed configuration to the fully open position: the at least one leash is configured to retain the cap body to the TE band; and a fold angle of the fold of the at least one leash increases to increase a distance between the cap body and the TE band.
In certain embodiments, the fold is positioned about midway along the elongate leash body. In certain embodiments, when the cap body is in the closed configuration, a portion of the elongate leash body not including the fold extends in a manner substantially parallel to a rim of the cap body. In certain embodiments, the fold comprises a first fold arm moveably connected to a second fold arm, the first fold arm and the second fold arm being positioned substantially transversely to the portion of the elongate leash body not including the fold. In certain embodiments, when the cap body is in the closed configuration, a portion of the fold extends into a correspondingly shaped cut-out in the TE band.
In certain embodiments, the leash is arranged such that the length of the leash is resiliently extendible.
In certain embodiments, a connection point of the at least one leash to the TE band is circumferentially spaced from a connection point of the at least one leash to the at least one hinge.
In certain embodiments, the at least one leash comprises two leashes, and the at least one hinge comprises two hinges, each hinge of the two leashes being connected to the TE band and a given hinge.
In certain embodiments, the closure device further comprises a tongue protruding from the cap body between the two leashes, the tongue having a lip extending therefrom.
In certain embodiments, the closure device further comprises a tongue protruding from the cap body adjacent the at least one hinge, the tongue having a lip extending therefrom.
In certain embodiments, the tongue protrudes downwardly from the cap body, and the lip extends substantially transversely from a free end of the tongue, such that a profile of the tongue and the lip is “L” shaped.
In certain embodiments, the closure device further comprises a groove defined in an outer surface of the cap body and extending at least partially circumferentially around the cap body and positioned above the tongue, such that when the cap body is in the fully open position, the groove is arranged to interact with a support ledge on the outer surface of the neck to retain the cap body in the fully open position. In certain embodiments, the groove extends partially around a circumference of the cap body.
In certain embodiments, the closure device further comprises at least one rib on the TE band and positioned below the tongue when the cap body is in the closed configuration relative to the neck, wherein, when the cap body is actuated from the closed configuration to the fully open position: the lip is arranged to interact with the at least one rib in the fully open position. In certain embodiments, the at least one rib extends in a direction from the TE band to the cap body. In certain embodiments, the at least one rib extends from a lower end of the TE band and stops short of an upper end of the TE band. In certain embodiments, the at least one rib comprises two ribs, spaced from one another and extending substantially parallel to one another, on the TE band.
In certain embodiments, a free end of the lip has a distance of extension from the tongue which is greater than a distance of extension of the rib from the TE band.
From another aspect, there is provided a closure device for a container, the container having a neck including an annular flange along an exterior surface of the neck, the closure device comprising: a cap body; a tamper evident (TE) band, the TE band defined such that, when assembled onto the container, the TE band is positioned below the annular flange for cooperation therewith; at least one hinge defined on the cap body; at least one leash connected to the TE band and the at least one hinge, the at least one leash allowing for the cap body to be separated from the TE band during opening, but to remain connected thereto via the at least one leash; a tongue protruding from the cap body adjacent the at least one hinge, the tongue having a lip extending outwardly therefrom; a groove defined in an outer surface of the cap body and extending at least partially circumferentially around the cap body and positioned above the tongue, wherein, when the cap body is actuated from a closed configuration to a fully open position: the at least one leash is configured to retain the cap body to the TE band; the lip is arranged to interact with an outer surface of the TE band when the cap body is in the fully open position; and the groove is arranged to interact with the annular flange and to retain the cap body in the fully open position. In certain embodiments, the groove extends partially around a circumference of the cap body.
In certain embodiments, the at least one leash has an elongate leash body extending generally circumferentially around a portion of the TE band and a fold is provided in the elongate leash body; wherein, when the cap body is actuated from the closed configuration to the fully open position: the at least one leash is configured to retain the cap body to the TE band; and a fold angle of the fold of the at least one leash increases such that a length of the at least one leash increases.
In certain embodiments, the leash is arranged such that the length of the leash is resiliently extendible.
In certain embodiments, the fold is positioned about midway along the elongate leash body. In certain embodiments, when the cap body is in the closed configuration, a portion of the elongate leash body not including the fold extends in a manner substantially parallel to a rim of the cap body. In certain embodiments, the fold comprises a first fold arm moveably connected to a second fold arm, the first fold arm and the second fold arm being positioned substantially transversely to the portion of the elongate leash body not including the fold. In certain embodiments, when the cap body is in the closed configuration, a portion of the fold extends into a correspondingly shaped cut-out in the TE band.
In certain embodiments, a connection point of the at least one leash to the TE band is circumferentially spaced from a connection point of the at least one leash to the at least one hinge.
In certain embodiments, the at least one leash comprises two leashes, and the at least one hinge comprises two hinges, each hinge of the two leashes being connected to the TE band and a given hinge.
In certain embodiments, the tongue protrudes downwardly from the cap body, and the lip extends substantially transversely from a free end of the tongue, such that a profile of the tongue and the lip is “L” shaped. In certain embodiments, the closure device further comprises at least one rib on the TE band and positioned below the tongue when the cap body is in the closed configuration relative to the neck, wherein, when the cap body is actuated from the closed configuration to the fully open position, the lip is arranged to interact with the at least one rib in the fully open position. In certain embodiments, the at least one rib extends in a direction from the TE band to the cap body. In certain embodiments, the at least one rib extends from a lower end of the TE band and stops short of an upper end of the TE band. In certain embodiments, the at least one rib comprises two ribs, spaced from one another and extending substantially parallel to one another, on the TE band. In certain embodiments, a free end of the lip has a distance of extension from the tongue which is greater than a distance of extension of the rib from the TE band.
From another aspect, there is provided a mold for forming a closure device by injection molding, the mold comprising a female cavity piece and a male core piece, the female cavity piece and the male core piece defining a molding cavity configured to form the closure device as described herein.
These and other aspects and features of non-limiting embodiments will now become apparent to those skilled in the art upon review of the following description of specific non-limiting embodiments in conjunction with the accompanying drawings.
The non-limiting embodiments will be more fully appreciated by reference to the accompanying drawings, in which:
The drawings are not necessarily to scale and may be illustrated by phantom lines, diagrammatic representations and fragmentary views. In certain instances, details that are not necessary for an understanding of the embodiments or that render other details difficult to perceive may have been omitted.
Reference will now be made in detail to various non-limiting embodiment(s) of a closure device for a container. It should be understood that other non-limiting embodiment(s), modifications and equivalents will be evident to one of ordinary skill in the art in view of the non-limiting embodiment(s) disclosed herein and that these variants should be within scope of the appended claims.
Furthermore, it will be recognized by one of ordinary skill in the art that certain structural and operational details of the non-limiting embodiment(s) discussed hereafter may be modified or omitted (i.e. non-essential) altogether. In other instances, well known methods, procedures, and components have not been described in detail.
According to non-limiting embodiments of the present technology, there is provided a closure device 10 for a container 12. The container 12 with which the closure device 10 is useable is not limited in its use, configuration or material. In the embodiments illustrated herein, the container 12 is a bottle, such as a drink bottle made of polyethylene terephthalate (PET). For example, the container 12 can be a blow-molded bottle for containing still water beverage or another flat beverage. Alternatively, the container 12 can be for a carbonated beverage. In yet further embodiments, the container 12 can be for a hot fill type of beverage (such as a drinkable yogurt, a fruit juice, or the like). However, the closure device 10 can be used with other types of containers.
Referring initially to
A retaining mechanism 22, associated with one or both of the cap body 14 and the tamper evidence band 16, is provided to retain the closure device 10 in the fully open position.
The cap body 14 and the TE band 16 are sized and shaped to be received around a neck 24 of the container 12, the neck 24 defining an open end 26 of the container 12, and the cap body 14 being arranged to close and to fluidly seal the open end 26 when in the closed configuration 18. The TE band 16 and the cap body 14 are arranged to be at least partially separated from one another. As is known in the art, the separation (partial in this case) of the TE band 16 and the cap body 14, allows for a “tamper indication”—i.e. an indication that the container 12 has been opened.
The container 12 also includes an annular flange 28 (also referred to as a “tamper-evident bead”) extending around an outer surface 30 of the neck 24 and spaced from the open end 26 of the container 12. The tamper evident bead 28 protrudes by a first distance 32 from the outer surface of the neck 24. The TE band 16 of the closure device 10 is arranged to engage with the tamper evident bead 28 of the container 12, to retain the TE band 16 on the container 12, in use. The first distance 32 of the TE bead 28 relative to a size of the TE band 16 is such that the TE bead 28 retains the TE band after the cap body 14 is actuated from the closed configuration 18 to the fully open position.
The retaining mechanism 22 is arranged to engage with a portion of a neck 24 of the container 12, in use, to retain the cap body 14 in the open configuration 20. This interaction is a direct interaction in certain non-limiting embodiments. In one non-limiting embodiment of the present technology specifically illustrated in
The container 12 also has a support ledge 34 extending around the outer surface 30 of the neck 24 and spaced from the tamper evident bead 28. The support ledge 34 is spaced further from the open end 26 of the container 12 than the tamper evident bead 28. The support ledge 34 protrudes by a second distance 36 from the outer surface 30 of the neck 24 of the container 12, the second distance 36 of the support ledge 34 being larger than the first distance 32 of the tamper evident bead 28. A diameter 38 of the TE band 16 of the closure device 10 is less than a diameter 40 of the neck 24 at the support ledge 34, which serves to retain the closure device 10 above the support ledge 34 at the neck 24 of the container 12. In other words, a movement of the TE band 16 away from the open end 26 of the container 12 is delimited by the support ledge 34, in use.
The cap body 14 is generally cylindrical in shape and has a closed first end 42 and an open second end 44. The cap body 14 is arranged to be received over the open end 26 of the container 12. In this respect, at least the second end 44 of the cap body 14 has a diameter 46 wider than a diameter 48 of the container 12 at the open end 26, to allow retention of the cap body 14 on the neck 24.
The closure device 10 is arranged to be retained in the closed configuration 18 by means of a threaded interface with the neck. An inner surface 50 of the cap body 14 has threads 52 defined therein which are arranged to cooperate with threads 54 (
In alternative embodiments (not shown), one or both of the cap body 14 and the neck 24 does not include the threads 54 and is sized and shaped to snap-fit onto the neck 24 to close the open end 26 of the container 12.
An outer surface 60 of the cap body 14 is textured to facilitate gripping of the cap body 14. As seen in
The cap body 14 is frangibly connected to the TE band 16 by a plurality of links 64 which are frangible. The links 64 are arranged to be severed when the cap body 14 and the TE band 16 are rotatably moved relative to one another. A tensile strength of the links 64 are lower than a tensile strength of the TE band 16, which means that the links 64 will be severed before tensile damage to the TE band 16.
In use, in the closed configuration (
As noted earlier, the closed configuration 18 of the closure device 10 has the locked closed configuration (
The cap body 14 is moveable between the closed configuration 18 (in the unlocked mode) to the open configuration 20 through a hinged movement about a pivot region of the retaining mechanism 22. The plurality of open positions of the cap body 14 are defined by a positioning angle 66 between an axis 68 of the cap body 14 along a diametric plane of the cap body 14, and an axis 70 of the neck 24 of the container 12 along a diametric plane of the neck 24. The open positions represented in
Turning now to the retaining mechanism 22, best seen in
As best seen in
The first and second hinges 72, 74 are spaced from one another circumferentially around the second end 44 of the cap body 14. Each of the first and second hinges 72, 74 comprise a hinge body 80 extending from the second end 44 of the cap body 14. Each hinge body 80 has a hinged end 82 which is hingedly connected to the cap body 14, and a leash end 84 which is connected to the leash 76.
By hingedly connected is meant that the hinge body 80 is moveably connected to the cap body 14 in a manner that allows relative axial movement. This is also referred to as a “flip-top” arrangement. The connection between the leash end 84 of the hinge body 80 and the leash 76 is not a hinged connection.
The hinged end 82 of each of the first and second hinges 72, 74 are positioned inwardly of a rim 86 of the second open end 44 of the cap body 14, towards the first closed end 42 of the cap body 14. The leash end 84 of each of the first and second hinges 72, 74 protrude further than the rim 86 of the cap body 14, such that the leash end 84 of each of the first and second hinges 72, 74 are respectively positioned beyond the rim 86 of the second open end 44 of the cap body 14, away from the second end 44 of the cap body 14. The arrangement of the tongue 78 relative to the leash 76 defines a gap 87 allowing relative movement between the tongue 78 and the leash 76.
The leash 76 allows separation of the cap body 14 from the TE band 16 during opening (i.e. from the locked mode to the unlocked mode of the closed configuration 18), whilst remaining connected to the TE band 16. The leash 76 is sized and shaped to allow the cap body 14 a degree of rotational freedom sufficient to disengage the threaded interface (52, 54).
A frangible bridge 88 is provided between the leash 76 and the TE band 16, which is severed during rotational actuation from the locked mode to the unlocked mode of the closure device 10. A tensile strength of the frangible bridge 88 is lower than a tensile strength of the leash 76. The severing of the bridge 88 causes a separation between the leash 76 and the TE band 16, defining therein a foothold opening 90 between the leash 76 and the TE band 16. More than one frangible bridge 88 may be provided. The foothold opening 90 is sized and shaped to receive at least a portion of the TE bead 28 of the container 12. The size of the leash 76 allows a degree of rotational movement of the cap body 14 to break the bridge 88 and to disengage the threads 54. As best seen in
The tongue 78 comprises a tongue body 92 having a free end 94 extending from the cap body 14 between the first hinge 72 and the second hinge 74. The free end 94 of the tongue 78 does not protrude further than the rim 86 of the cap body 14 and is aligned with the rim 86 of the cap body 14. In the closed configuration, the free end 94 of the tongue 78 is spaced from the leash 76. At the free end 94 of the tongue 78 is provided a lip 96. When the cap body 14 is actuated from the closed configuration 18 to the open configuration 20 in the fully open position, an interaction of the tongue 78 and the TE bead 28 of the container 12 is configured to retain the cap body 14 in the fully open position. More specifically, an interaction of the lip 96 of the tongue 78 with the leash 76 and an upper portion 98 (
The functioning of the retaining mechanism 22 will be described in more detail with reference to
As such, it can be said that the leash 76 functions to retain a position of the closure device 10 during opening and/or closing; and that the tongue 78 functions to maintain the closure device 10 in the fully open position.
Another embodiment of the closure device 10 is illustrated in
In the embodiment of
Accordingly, the foothold opening 90, in this embodiment, comprises a first foothold opening 90a defined by the first leash arm 108 and a portion of the TE band 16 oppositely facing the first leash arm 108, and a second foothold opening 90b defined by the second leash arm 110 and a portion of the TE band 16 oppositely facing second leash arm 110. As best seen, during opening, the first and second foothold openings 90a, 90b are arranged to receive a portion of the TE bead 28.
The gap 87 between the tongue 78 and the leash 76 is defined by the first leash arm 108, the second leash arm 110 and the free end 94 of the tongue 78. The gap 87 is wider at a point corresponding to the single connection point 106 compared to a distance between the tongue 78 and the first leash arm 108, or the tongue 78 and the second leash arm 110 at the points where they meet the first and second hinges 72, 74 respectively.
The functioning of the retaining mechanism 22 will be described in more detail with reference to
When the cap body 14 is at a position (
The closure device 10 of
Another embodiment of the closure device 10 is illustrated in
The closure device 10 comprises the cap body 14 frangibly attached to the tamper evidence band (TE band) 16, and the retaining mechanism 22a. The closure device 10 is moveable between the closed configuration 18 (locked and unlocked) and the open configuration (with different open positions including the fully open position). The retaining mechanism 22a, associated with one or both of the cap body 14 and the tamper evidence band 16, is provided to retain the closure device in the fully open position.
The retaining mechanism 22a is arranged to engage with a portion of the neck 24 of the container 12, specifically the TE bead 28, to retain the cap body 14 in the open configuration 20. The retaining mechanism 22a differs from that of
As best seen in
First and second hinges 72a, 74b are provided extending from the TE band 16. The first and second hinges 72a, 74a are spaced from one another circumferentially around the TE band 16. Each one of the first and second hinges 72a, 74a comprise a hinge body 80a extending from the TE band 16 and having a hinged end 82a, hingedly connected to the TE band 16, and a leash end 84a, connected to a leash 76a. The leash 76a comprises first and second leash arms 108a, 110a which originate from separate locations 112, 114 on the cap body 14 and converge towards the pivot region 130.
The leash 76a extends from (i) a first point 112 on the cap body 14 to the first hinge 72a (first leash arm 108a), (ii) from the first hinge 72a to the second hinge 74a, and (iii) from the second hinge 74a to a second point 114 (second leash arm 110a). The leash 76a, and a portion of the cap body 14 between the first and second points 112, 114 on the cap body 14 from which the leash 76a extends defines an enclosed opening 116. The enclosed opening 116 is arranged to allow modification of a distance of the cap body 14 from the tongue 78a during opening and closing.
On the TE band 16, between the first and second hinges 72a, 74a, there is provided a ratchet 118 having a contact surface 120 for contacting the tongue 78a during opening. The ratchet 118 is wedge-shaped, with a free end 122 which is thinner than a portion 124 of the ratchet 118 connected to the TE band 16. An inner surface 126 of the ratchet is arranged to engage with the TE bead 26. The contact surface 120 of the ratchet 118 is sized and shaped to engage with the lip 96a of the tongue 78a. The portion of the leash 76a between the first and second hinges 72a, 74a, the first and second hinges 72a, 74a, and the ratchet 118 define a gap 128, similar to the gap 87.
When the cap body 14 is actuated from the closed configuration 18 (
As the cap body 14 is rotated about the pivotal axis 132 (
In the fully open position (
As such, it can be said that the enclosed opening 116 and the leash 76a enables the pivoting of the cap body 14 as well as the positioning of the lip 96 relative to the leash to maintain the closure device 10 in the fully open position. The retention of the cap body 14 in the fully open position is by means of an indirect contact between the tongue 78a and the neck 24 via the ratchet 118.
Another embodiment of the closure device 10 is illustrated in
The closure device 10 of
The retaining mechanism 22b is arranged to engage with a portion of the neck 24 of the container 12, specifically the TE bead 28, to retain the cap body 14 in the open configuration 20. The retaining mechanism 22b differs from that of
As best seen in
On the TE band 16, there is provided a TE band cut-out region 134. Extending from the TE band 16 at the TE band cut-out region 134 there is provided a ratchet 118 having a contact surface 120 for contacting the tongue 78a during opening. The ratchet 118 is wedge-shaped, with a free end 122 which is thinner than a portion 124 of the ratchet 118 connected to the TE band 16. The inner surface 126 of the ratchet is arranged to engage with the TE bead 26. The contact surface 120 of the ratchet 118 is sized and shaped to engage with the lip 96a of the tongue 78a.
A leash 76b extends between the cap body 14, at the cut-out portion 111, to the ratchet 118. The leash 76b comprises a first leash elbow 136 and a second leash elbow 138. The first leash elbow 136 extends from a first point 112a on the cap body 14, within the cut-out portion 111, to a first side 140 of the ratchet 118 within the TE band cut-out region 134. The second leash elbow 138 extends from a second point 114a on the cap body 14. The first point 112a and the second point 114a are spaced apart from one another and positioned inwardly of edges 142 of the cut-out portion 111.
The first and second leash elbows 136, 138 each have a “V” shaped configuration giving them an expandable form. The first and second leash elbows 136, 138 can be considered to be arranged to resiliently bias the cap body towards the ratchet. Other expandable or resiliently biased configurations are also possible and within the scope of the present technology.
The first leash elbow 136, the second leash elbow 138, the ratchet 118 and a portion of the cap body 14 define an enclosed opening 116a. Frangible links 64 are provided between the TE band 16 and the rim 86 of the cap body 14, as well as between the first and second leash elbows 136, 138. The leash 76b is arranged to allow sufficient rotational movement between the cap body 14 and the TE band 16 to allow the frangible links 64 to sever on opening of the closure device 10.
When the cap body 14 is actuated from the closed configuration 18 (
As the cap body 14 is rotated about the pivotal axis 132a (
In the fully open position (
The closure device 10, including the cap body 14, the TE band 16 and the retaining mechanism 22, have a one-piece construction.
A further embodiment of the closure device 10 is illustrated in
The cap body 14 is generally cylindrical in shape and has the closed first end 42 and the open second end 44. The cap body 14 is arranged to be received over the open end 26 of the container 12.
The closure device 10 is arranged to be retained in the closed configuration 18 by means of the threaded interface with the neck 24 of the container 12. The inner surface 50 of the cap body 14 has threads 52 defined therein which are arranged to cooperate with threads 54 on the outer surface of the neck 24 of the container 12. The threads 54 have been omitted from
The outer surface 60 of the cap body 14 is textured to facilitate gripping of the cap body 14. As seen in
The cap body 14 is frangibly connected to the TE band 16 by the plurality of links (bridges) 64 which are frangible. The links 64 are arranged to be severed when the cap body 14 and the TE band 16 are rotatably moved relative to one another. The tensile strength of the links 64 are lower than the tensile strength of the TE band 16, which means that the links 64 will be severed before tensile damage to the TE band 16.
In use, in the locked closed configuration (
In the unlocked closed configuration (
Turning now to the retaining mechanism 22 which enables retention of the cap body 14 on the container 12 in the closed and open configurations 18, 20, and enables retention of the cap body 14 at the fully open position of the open configuration.
As best seen in
The first and second hinges 72, 74 are spaced from one another circumferentially around the second end 44 of the cap body 14. Each of the first and second hinges 72, 74 comprises the hinge body 80 extending from the second end 44 of the cap body 14. Each hinge body 80 has the hinged end 82 which is hingedly connected to the cap body 14, and the leash end 84 which is connected to the respective first leash 76a or second leash 76b. By hingedly connected is meant that the hinge body 80 is moveably connected to the cap body 14 in a manner that allows relative axial movement. This is also referred to as a “flip-top” arrangement. The connection between the leash end 84 of the hinge body 80 and the leash 76 is not a hinged connection.
The hinged end 82 of each of the first and second hinges 72, 74 is positioned inwardly of the rim 86 of the second open end 44 of the cap body 14, towards the first closed end 42 of the cap body 14. The leash end 84 of each of the first and second hinges 72, 74 protrudes further than the rim 86 of the cap body 14, such that the leash end 84 of each of the first and second hinges 72, 74 are respectively positioned beyond the rim 86 of the second open end 44 of the cap body 14, away from the second end 44 of the cap body 14.
Unlike the embodiment of
During rotational actuation from the locked mode to the unlocked mode of the closure device 10, a separation between the tongue 78 and the protruding portion 150 is created, defining therein a foothold opening 90a between the tongue 78 and the protruding portion 150. The foothold opening 90a is sized and shaped to allow an un-interfered rotation of the tongue 78 relative to the protruding portion 150.
The lengths of the leashes 76a, 76b allow a degree of rotational movement of the cap body 14 to break the frangible links 64, positioned between the TE band 16 and the leashes 76a, 76b, respectively, and to disengage the threads 54.
As best seen in
As before, the tongue 78 comprises the tongue body 92 having the free end 94 with the lip 96 formed thereon. The free end 94 of the tongue 78 does not protrude further than the rim 86 of the cap body 14 and is aligned with the rim 86 of the cap body 14. Unlike the embodiment of
The functioning of the retaining mechanism 22 will be described in more detail with reference to
As the fully open position is approached, the lip 96 contacts a top surface 152 of the protruding portion 150, with the TE band 16 resting on the support ledge 34 and the protruding portion 150 spaced from the TE bead 28 (
As such, it can be said that the first and second leashes 76a, 76b function to retain a position of the closure device 10 during opening and/or closing; and that the tongue 78 and the protruding portion 150 function to maintain the closure device 10 in the fully open position.
The embodiment of the closure device 10 of
In certain embodiments, the ribs 180 ensure that the TE band 16 and the lip 96 are engaging in an upper portion of the TE band 16, close to a position of the neck pilfer proof. In addition, the ribs, in certain embodiments, ensure that a rotation point is above the ribs 180 on the TE band which can provide a robustness to the open position.
A further embodiment of the closure device 10 is illustrated in
The cap body 14 is generally cylindrical in shape and has the closed first end 42 and the open second end 44. The cap body 14 is arranged to be received over the open end 26 of the container 12.
The closure device 10 is arranged to be retained in the closed configuration 18 by means of the threaded interface with the neck 24 of the container 12. The inner surface 50 of the cap body 14 has threads 52 defined therein which are arranged to cooperate with threads 54 on the outer surface of the neck 24 of the container 12 (
The outer surface 60 of the cap body 14 is textured to facilitate gripping of the cap body 14. As seen in
The cap body 14 is frangibly connected to the TE band 16 by the plurality of links (bridges) 64 which are frangible. The links 64 are arranged to be severed when the cap body 14 and the TE band 16 are rotatably moved relative to one another. The tensile strength of the links 64 are lower than the tensile strength of the TE band 16, which means that the links 64 will be severed before tensile damage to the TE band 16.
In use, in the locked closed configuration (
In the unlocked closed configuration (
Turning now to the retaining mechanism 22, which enables one or both of: (i) retention of the cap body 14 on the container 12 in the closed and open configurations 18, 20, and (ii) retention of the cap body 14 at the fully open position of the open configuration.
As best seen in
The first and second hinges 72, 74 are spaced from one another circumferentially around the second end 44 of the cap body 14. Each of the first and second hinges 72, 74 comprises the hinge body 80 extending from the second end 44 of the cap body 14. Each hinge body 80 has the hinged end 82 which is hingedly connected to the cap body 14, and the leash end 84 which is connected to the respective first leash 76a or the second leash 76b. By hingedly connected is meant that the hinge body 80 is moveably connected to the cap body 14 in a manner that allows relative axial movement. This is also referred to as a “flip-top” arrangement. The connection between the leash end 84 of the hinge body 80 and the leash 76 is not a hinged connection in certain embodiments.
The hinged end 82 of each of the first and second hinges 72, 74 is positioned inwardly of the rim 86 of the second open end 44 of the cap body 14, towards the first closed end 42 of the cap body 14. The leash end 84 of each of the first and second hinges 72, 74 protrudes further than the rim 86 of the cap body 14, such that the leash end 84 of each of the first and second hinges 72, 74 are respectively positioned beyond the rim 86 of the second open end 44 of the cap body 14, away from the second end 44 of the cap body 14.
The tongue 78 comprises the tongue body 92 having the free end 94 with the lip 96 formed thereon. The free end 94 of the tongue 78 does not protrude further than the rim 86 of the cap body 14 and is aligned with the rim 86 of the cap body 14. Like the embodiment of
The TE band 16 has a protruding portion 150 extending towards the tongue 78. The TE band 16 on either side of the protruding portion 150 is cut-out to accommodate the leash 76a and the leash 76b. The arrangement of the tongue 78 relative to the protruding portion 150 defines a gap 87 allowing relative movement between the tongue 78 and the protruding portion 150. During rotational actuation from the locked mode to the unlocked mode of the closure device 10, a separation between the tongue 78 and the protruding portion 150 is created, defining therein a foothold opening 90a between the tongue 78 and the protruding portion 150. The foothold opening 90a is sized and shaped to allow an un-interfered rotation of the tongue 78 relative to the protruding portion 150.
Unlike the embodiment of
Turning first to the extendible leashes, each leash 76a, 76b is provided with a fold 160 in an elongate leash body 162. The fold 160 is positioned about midway along the elongate leash body 162. The leashes 76a, 76b, can be considered to have an extendible configuration, by means of the respective fold 160, as will be explained below. In certain embodiments, the leashes 76a, 76b can be considered to have a resiliently extendible configuration, with the leashes resiliently biased to a non-extended form. This is the case, in certain embodiments, as long as the extent of deformation of the leashes 76a, 76b are within an elastic range of the leashes 76a, 76b, with no plastic deformation.
The fold 160 has a substantially U shaped configuration comprising a first fold arm 164 spaced from a second fold arm 166. The first fold arm 164 is moveably connected to the second fold arm 166. In other words, the first fold arm 164 and the second fold arm 166 are moveable relative to one another. The elongate leash body 162 has a one piece construction. Hence, the first fold arm 164 and the second fold arm 166 are one piece also.
At least a portion of the fold 160 (i.e. at least a lower end of the U configuration) extends into a correspondingly shaped cut-out 176 in the TE band 16. Portions of the leash body 76a and 76b which do not include the fold 160 extend generally circumferentially around a portion of the TE band 16, and substantially parallel to the rim 86, when the cap body 14 is in the closed configuration 18.
The fold 160 has a first fold distance 168 and a first fold angle 170 between the first fold arm 164 and the second fold arm 166 when the closure device 10 is in the closed configuration 18 (
In other words, during opening of the closure device 10, the leashes 76a, 76b move from the non-extended configuration to the extended configuration. A distance between the first fold arm 164 and the second fold arm 166 is increased which extends the length 178 of the leash 76a, 76b connecting the cap body 16 to the TE band 16. In the closed configuration 18 of the closure device 10, with the leashes 76a, 76b in the non-extended configuration, the first fold angle 170 is zero as the first fold arm 164 is substantially parallel to the second fold arm 166. In the extended configuration of the leashes 76a, 76b, the fold 160 has a “V” configuration instead of a “U” configuration, with the second fold angle 174 being greater than zero.
In certain embodiments, due to elastic properties of the material used to make the container device and the configuration of the fold 90, the leashes 76a, 76b, have a certain amount of resilience, allowing the length 178 of the leash 76a, 76b to recover once an extending force is released. In the fully open position, the leashes 76a, 76b are stretched and due to an elastic behaviour of the leashes 76a, 76b, they spring back a certain extent hence releasing a clamping force.
The increased length 178 of the leashes 76a, 76b during opening increases a potential separation between the lip 94 and the TE band 16. This can allow for case of rotation of the cap body 14 during opening, as well as allow for over-rotation which can help for retention in the open position. In considering the amount of the additional extension required on the leashes 76a, 76b, a protrusion distance of the lip 96 from the tongue 78 can be taken into account to account for clearance required during opening. As will be described further below in relation to
Turning now to the at least one rib 180, as can be seen from
Turning now to the groove 190 defined in an outer surface 192 of the cap body 14. In certain embodiments, the groove 190 is annular and extends fully around the cap body 14. In other embodiments, the groove may extend partially around the cap body. The groove 190 is arranged to interact with the annular flange 28 when the cap body 14 is in the fully open position. In this respect, in certain embodiments, the groove 190 has a profile corresponding to a profile of the annular flange 28.
As best seen in
As can be seen from
The functioning of the retaining mechanism 22 will be described in more detail with reference to
As best seen in
As best seen in
As for the embodiment of
An audible sound is produced as the support ledge 34 clicks into the groove 160. The audible sound is a click or the like.
As such, it can be said that certain features of the retaining mechanism function to retain a position of the closure device 10 during opening and/or closing (such as the first and second leashes 76a, 76b), and to maintain the closure device 10 in the fully open position (such as the tongue 78, the lip 96, the protruding portion 150, the ribs 180, and the groove 190).
In certain other embodiments (not shown), the closure device 10 differs from that of
In certain other embodiments (not shown), the closure device 10 differs from that of
In certain other embodiments (not shown), the closure device 10 differs from that of
Referring now
In certain embodiments, the closure device 10 is made by injection molding using a mold adapted to form the closure device 10. The mold is positionable, in use, within an injection molding machine (not depicted). Injection molding machines are well known in the art and, as such, will not be described here at any length. A detailed description of these known injection molding machines may be referenced, at least in part, in the following reference books (for example): (i) “Injection Molding Handbook” authored by OSSWALD/TURNG/GRAMANN (ISBN: 3-446-21669-2), (ii) “Injection Molding Handbook” authored by ROSATO AND ROSATO (ISBN: 0-412-10581-3), (iii) “Injection Molding Systems” 3rd Edition authored by JOHANNABER (ISBN 3-446-17733-7) and/or (iv) “Runner and Gating Design Handbook” authored by BEAUMONT (ISBN 1-446-22672-9).
A mold assembly for making the closure device 10 comprises a molding cavity defined, at least in part, by a female cavity piece and a male core piece (as well as, optionally, a number of additional molding components) mounted respectively on a cavity plate and a core plate of a mold. The molding cavity is arranged to receive heated molding material for making the closure device (in this embodiment PET pellets) injected under pressure in a molten state.
The cavity plate and the core plate are urged together and are held together by clamp force, the clamp force being sufficient enough to keep the cavity and the core pieces together against the pressure of the injected molding material. The molding cavity has a shape that substantially corresponds to a final cold-state shape of the closure device. The so-injected molding material is then cooled to a temperature sufficient to enable ejection of the so-formed closure device from the mold. When cooled, the molded closure device shrinks inside of the molding cavity and, as such, when the cavity and core plates are urged apart, the molded article can be demolded, i.e. ejected off of the core piece. Ejection structures are known to assist in removing the molded articles from the core halves. Examples of the ejection structures include stripper plates, ejector pins, etc.
The mold assembly is comprised of several plates, each plate housing a component of the mold assembly. More specifically, the mold assembly includes a cavity plate housing one or more cavity inserts and a core plate housing one or more cavity inserts. In certain embodiments, the mold assembly further includes a stripper assembly, which in case of the preform mold, may house one or more neck rings. The mold assembly may further include one or more plates associated with the hot runner, such as a manifold plate, a backing plate and the like.
For the embodiments of the closure device 10 illustrated in
It should be expressly understood that various technical effects mentioned throughout the description above need not be enjoyed in each and every embodiment of the present technology. As such, it is anticipated that in some implementations of the present technology, only some of the above-described technical effects may be enjoyed. While in other implementations of the present technology, none of the above enumerated technical effects may be present, while other technical effects not specifically enumerated above may be enjoyed. It should be expressly understood that the above enumerated technical effects are provided for illustration purposes only, to enable those skilled in the art to better appreciate embodiments of the present technology and by no means are provided to limit the scope of the present technology or of the claims appended herein below.
It is noted that the foregoing has outlined some of the more pertinent non-limiting embodiments. It will be clear to those skilled in the art that modifications to the disclosed non-embodiment(s) can be effected without departing from the spirit and scope thereof. As such, the described non-limiting embodiment(s) ought to be considered to be merely illustrative of some of the more prominent features and applications. Other beneficial results can be realized by applying the non-limiting embodiments in a different manner or modifying them in ways known to those familiar with the art. This includes the mixing and matching of features, elements and/or functions between various non-limiting embodiment(s) is expressly contemplated herein so that one of ordinary skill in the art would appreciate from this disclosure that features, elements and/or functions of one embodiment may be incorporated into another embodiment as skill in the art would appreciate from this disclosure that features, elements and/or functions of one embodiment may be incorporated into another embodiment as appropriate, unless described otherwise, above. Although the description is made for particular arrangements and methods, the intent and concept thereof may be suitable and applicable to other arrangements and applications.
This application is a continuation of U.S. Ser. No. 17/608,726, which is a national stage filing under 35 U.S.C. § 371 of International Application PCT/CA2020/050533, filed Apr. 23, 2020, which claims the benefit under 35 U.S.C. § 119(e) of U.S. provisional application Ser. No. 62/981,067, filed Feb. 25, 2020 and U.S. provisional application Ser. No. 62/913,377, filed Oct. 10, 2019 and U.S. provisional application Ser. No. 62/846,801, filed May 13, 2019, each of the foregoing is herein incorporated by reference in its entirety.
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| Entry |
|---|
| Extended European Search Report dated May 15, 2024 for European Application No. EP 24151979.2. |
| Number | Date | Country | |
|---|---|---|---|
| 20240208702 A1 | Jun 2024 | US |
| Number | Date | Country | |
|---|---|---|---|
| 62981067 | Feb 2020 | US | |
| 62913377 | Oct 2019 | US | |
| 62846801 | May 2019 | US |
| Number | Date | Country | |
|---|---|---|---|
| Parent | 17608726 | US | |
| Child | 18601863 | US |
