Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
  • B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
  • B65D1/02—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents
  • B65D1/0223—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents characterised by shape
  • B65D1/023—Neck construction
  • B65D1/0246—Closure retaining means, e.g. beads, screw-threads
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
  • B65D41/00—Caps, e.g. crown caps or crown seals, i.e. members having parts arranged for engagement with the external periphery of a neck or wall defining a pouring opening or discharge aperture; Protective cap-like covers for closure members, e.g. decorative covers of metal foil or paper
  • B65D41/32—Caps or cap-like covers with lines of weakness, tearing-strips, tags, or like opening or removal devices, e.g. to facilitate formation of pouring openings
  • B65D41/34—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt
  • B65D41/3442—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt with rigid bead or projections formed on the tamper element and coacting with bead or projections on the container
  • B65D41/3447—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt with rigid bead or projections formed on the tamper element and coacting with bead or projections on the container the tamper element being integrally connected to the closure by means of bridges

Definitions

• Embodiments of the present disclosure generally relate to the field of plastic bottles and preforms. More specifically, embodiments of the disclosure relate to tamper evidence container caps that provide visible indications of removal of the container caps after installation by a manufacturer.
• PET containers have been used as a replacement for glass or metal containers in the packaging of beverages for several decades.
• the most common plastic used in making beverage containers today is polyethylene terephthalate (PET).
• Containers made of PET are transparent, thin walled, and have the ability to maintain their shape by withstanding the force exerted on the walls of the container by their contents.
• PET resins are also reasonably priced and easy to process.
• PET bottles are generally made by a process that includes the blow-molding of plastic preforms which have been made by injection molding of the PET resin.
• plastic packaging include lighter weight and decreased breakage as compared to glass, and lower costs overall when taking both production and transportation into account.
• plastic packaging is lighter in weight than glass, there is still great interest in creating the lightest possible plastic packaging so as to maximize the cost savings in both transportation and manufacturing by making and using containers that contain less plastic.
• a plastic container for storing liquid contents typically includes a base that extends up to a grip portion suitable for affixing a label, as well as providing a location for grasping the l container.
• the grip portion generally transitions into a shoulder, which connects to a bell.
• the bell has a diameter that generally decreases as the bell extends upward from the shoulder to a neck and a finish.
• the finish is adapted to receive a closure, such as a bottle cap, to seal the contents within the interior of the plastic container.
• the closure includes a tamper evidence band that is disposed around the perimeter of the finish.
• the tamper evidence band generally remains positioned on the finish when an end-user loosens the closure to access the contents within the container.
• the tamper evidence band and the finish cooperate to indicate to the end-user whether or not the closure has been previously loosened after being installed by the manufacturer.
• a drawback to conventional tamper evidence bands is that in some instances the tamper evidence bands fail to detach from the closure upon being loosened, thereby making it difficult for an end-user to directly observe whether or not the closure has been previously separated from the container. Consequently, the closure may be separated from the tamper evidence band, the container may be refilled, and another closure may be installed onto the container, giving little visual indication to the end-user that the container has been reused.
• the finish includes a cylindrical body that begins at an opening to an interior of the container and extends to and includes a support ledge, one or more threads configured to provide a means to fasten the closure to the container, a bottom-most thread that extends into a parallel relationship with the support ledge, and a gap disposed between the bottom most thread and the support ledge.
• the one or more the threads are configured to rotatably engage with similar threads disposed within the closure to provide a way to seal contents within the container.
• each of the one or more threads extends along a section of the circumference of the finish and approaches the support ledge.
• the one or more threads comprise a single thread that begins at a thread start and spirals around the circumference of the finish before terminating at a thread end.
• the thread start is configured to guide a thread of the closure into a valley between adjacent portions of the single thread so as to threadably engage the closure with the finish.
• adjacent portions of the single thread are spaced uniformly around the circumference of the finish.
• the bottom-most thread is substantially parallel with the support ledge.
• the gap includes a roughly uniform width around the circumference of the finish and is configured to retain a tamper evidence band including the closure.
• the closure includes interior threads that are configured to engage with the one or more threads of the finish.
• the closure includes a plug seal configured to extend into the opening and enter into a pressed relationship with the finish whereby contents are sealed in the interior of the container.
• the closure includes a tamper evidence band disposed around the circumference of the closure and attached to the closure by way of a multiplicity of thin connections.
• the tamper evidence band includes a cam that includes an angled lower surface configured to facilitate passing the tamper evidence band over the one or more threads during assembly of the closure onto the container.
• the cam includes a continuous shape that extends around the circumference of the tamper evidence band.
• the cam includes an upper surface that is configured to engage with the bottom-most thread so as to retain the tamper evidence band positioned within the gap during loosening of the closure, the multiplicity of thin connections breaking during loosening of the closure.
• the tamper evidence band is configured to remain positioned below the bottom-most thread after the closure is removed from the container, thereby indicating that the closure has been loosened after being installed by a manufacturer.
• friction between the cam and the bottom-most thread retains the cam within the gap once the closure is loosened from the finish.
• the bottom-most thread and the one or more threads comprise a substantially similar diameter of the finish, such that friction between the closure and the bottom-most thread contributes to detaching the tamper evidence band from the closure during loosening of the closure from the finish.
• a tamper evidence closure for rotatably engaging with a finish of a container to seal contents within the interior of the container includes interior threads that are configured to engage with threads of the finish, a plug seal configured to extend into an opening of the finish whereby contents are sealed in the interior of the container, a multiplicity of thin connections attaching a tamper evidence band to a circumference of the tamper evidence closure, and a cam including a continuous cross-sectional shape of the tamper evidence band extending around the circumference of the tamper evidence band.
• the cam includes an angled lower surface configured to facilitate passing the tamper evidence band over the threads of the finish during assembly of the tamper evidence closure onto the container.
• the cam includes an upper surface configured to engage with a bottom-most thread of the finish so as to retain the tamper evidence band positioned on the finish during loosening of the tamper evidence closure, the multiplicity of thin connections breaking during loosening of the tamper evidence closure.
• the tamper evidence band is attached to the circumference of the tamper evidence closure by way of a multiplicity of thin connections that are configured to break during loosening of the tamper evidence closure.
• the cam includes an angled lower surface configured to facilitate passing the tamper evidence band over one or more threads including the finish during assembly of the tamper evidence closure onto the container.
• the cam includes a continuous shape that extends around the circumference of the tamper evidence band.
• the cam includes an upper surface that is configured to engage with a bottom-most thread of the finish so as to retain the tamper evidence band positioned below the bottom-most thread during loosening of the closure, the multiplicity of thin connections breaking during loosening of the closure.
• friction between the cam and the bottom-most thread retains the cam below the bottom-most thread once the tamper evidence closure is loosened from the finish.
• the tamper evidence band is bonded to the support ledge such that the tamper evidence band remains fixated to the support ledge during loosening the tamper evidence closure on the finish, the multiplicity of thin connections breaking during loosening of the closure.
• the tamper evidence band is bonded to the support ledge by way of an adhesive.
• the adhesive is any one of a hot melt adhesive, a Cyanoacrylate, a UV-cured adhesive, and 2-part epoxy.
• the tamper evidence band is bonded to the support ledge by way of ultrasonic welding.
• the tamper evidence band is bonded to the support ledge such that the tamper evidence band remains fixated to the support ledge during loosening the tamper evidence closure on the finish, the multiplicity of thin connections breaking during loosening of the closure.
• the tamper evidence band is bonded to the support ledge by way of an adhesive.
• the adhesive is any one of a hot melt adhesive, a Cyanoacrylate, a UV-cured adhesive, and 2-part epoxy.
• the tamper evidence band is bonded to the support ledge by way of ultrasonic welding.
• the finish includes one or more threads configured to provide a means to fasten the closure to the container, a bottom-most thread that extends into a parallel relationship with the support ledge, and a gap disposed between the bottom-most thread and the support ledge.
• the gap includes a roughly uniform width around the circumference of the finish and is configured to retain the tamper evidence band.
• the bottom-most thread and the one or more threads comprise a substantially similar diameter of the finish, such that friction between the cam and the bottom-most thread causes the tamper evidence band to detach from the tamper evidence closure during loosening on the finish.
• the one or more the threads are configured to rotatably engage with similar threads disposed within the closure to provide a way to seal contents within the container.
• each of the one or more threads extends along a section of the circumference of the finish and approaches the support ledge.
• the one or more threads comprise a single thread that begins at a thread start and spirals around the circumference of the finish before terminating at a thread end.
• the thread start is configured to guide a thread of the closure into a valley between adjacent portions of the single thread so as to threadably engage the closure with the finish.
• adjacent portions of the single thread are spaced uniformly around the circumference of the finish.
• FIG. 1 illustrates a side view of an exemplary container suitable for storing a beverage
• FIG. 2 illustrates an upper perspective view of an exemplary embodiment of a finish including extended threads
• FIG. 3 illustrates side view of the finish illustrated in FIG. 2;
• FIG. 4 illustrates a cross-sectional view of a closure that is configured to be threadably engaged with the finish shown in FIGS. 2 - 3.
• Embodiments disclosed herein provide a tamper evidence closure that reliably provides a visible indication about whether or not a manufacturer-installed closure has been previously removed from a plastic container.
• FIG. 1 illustrates a side view of an exemplary container 100 typically used for storing liquid contents, such as water and juice.
• the container 100 comprises a base 104 that extends up to a grip portion 108.
• the base 104 may be of the petaloid variety, although other configurations of the base may be incorporated into the container 100, without limitation.
• the grip portion 108 comprises a plurality of grip portion ribs 112 (i.e., sidewall ribs). As illustrated in FIG. 1, the plurality of grip portion ribs 112 generally vary in depth, and swirl or angulate around the grip portion 108.
• a label portion 116 can be connected to the grip portion 108 and comprises one or more label panel ribs (not shown).
• the label panel portion 116 transitions into a shoulder 124, which connects to a bell 128.
• the bell 128 comprises a plurality of design features 132. In other embodiments, however, the bell 128 may include various other design features, or may be smooth and generally unomamented.
• the bell 128 connects to a neck 136, which connects to a finish 140. As shown in FIG. 1, the bell 128 comprises a diameter that generally decreases as the bell 128 extends upward from the shoulder 124 to the neck 136 and the finish 140.
• the finish 140 can be adapted to receive a closure, such as by way of non-limiting example, a container cap or bottle cap, so as to seal contents within the container 100.
• the finish 140 generally defines an opening 144 that leads to an interior of the container 100 for containing a beverage, or other contents, such as any of a variety of carbonated soft drinks.
• FIG. 2 illustrates an upper perspective view of an exemplary finish 140 that may be configured to rotatably engage with the closure 164 so as to seal contents within the interior of the container 100.
• the finish 140 comprises a cylindrical body that begins at an opening 160 to an interior of the container 100 and extends to and includes a support ledge 156.
• the finish 140 can be further characterized by the presence of one or more threads 172 configured to provide a means to fasten the closure 164 to the container 100.
• the threads 172 are configured to rotatably engage with similar threads disposed within the closure 164 to provide a way to seal contents within the container 100.
• FIG. 1 illustrates an upper perspective view of an exemplary finish 140 that may be configured to rotatably engage with the closure 164 so as to seal contents within the interior of the container 100.
• the finish 140 comprises a cylindrical body that begins at an opening 160 to an interior of the container 100 and extends to and includes a support ledge 156.
• the finish 140 can be further characterized by the presence of
• each of the threads 172 generally extends along a section of the circumference of the finish 140 and approaches the support ledge 156.
• the closure 164 advances toward the support ledge 156.
• the threads 172 comprise a single thread 172 that begins at a thread start 180 and spirals around the circumference of the finish 140 before terminating at a thread end 184.
• the thread start 180 can be configured to guide a thread 176 of the closure 164 into a space, or valley 188, between adjacent threads 172 so as to threadably engage the closure 164 with the finish 140.
• the threads 172 generally are disposed adjacently to one another and are spaced uniformly around the circumference of the finish 140, with the exception of a bottom-most thread 192. As best shown in FIG.
• the bottom-most thread 192 extends into a parallel relationship with the support ledge 156, thereby forming a gap 196 therebetween.
• the gap 196 includes a roughly uniform width around the circumference of the finish 140 and may be configured to retain a tamper evidence band of the closure 164, as discussed herein.
• FIG. 4 illustrates a cross-sectional view of a closure 164 that may be threadably engaged with the finish 140 shown in FIGS. 2 - 3.
• the closure 164 includes interior threads 176 that are configured to engage with the threads 172 of the finish 140, as described above. As such, the threads 176 extends into the thread valleys 188 extending around the finish 140.
• a plug seal 168 of the closure 164 can be configured to extend into the opening 160 and enter into a pressed relationship with the finish 140 whereby contents are sealed in the interior of the container 100.
• the closure 164 includes a tamper evidence band 166 that includes a cam 200 and can be disposed around the perimeter of the closure 164 and may be attached to the closure 164 by a multiplicity of thin connections 204.
• the cam 200 generally comprises an angled lower surface 208 configured to facilitate passing the tamper evidence band 166 over the threads 172 during assembly of the closure 164 onto the container 100.
• a relatively flat upper surface 212 of the cam can be configured to engage with the bottom-most thread 192 of the finish 140 and thus retain the tamper evidence band 166 positioned within the gap 196 below the bottom-most thread 192 during loosening of the closure 164.
• the cam 200 presses against the bottom-most thread 192, breaking the thin connections 204 between tamper evidence band 166 and the closure 164.
• the tamper evidence band 166 remains positioned below the bottom-most thread 192 after the closure 164 can be removed from the container 100.
• the tamper evidence band 166 cooperates with the bottom most thread 192 to indicate to the end-user that the closure 164 has not been previously loosened after being installed by the manufacturer.
• the bottom-most thread 192 comprises a diameter of the finish 140 that may be greater than the diameter of the other threads 172. It is contemplated, however, that in some embodiments the bottom-most thread 192 and the other threads 172 comprise substantially the same diameter of the finish 140, without limitation. In such embodiments, friction between the closure 164 and the threads 172, 192 contributes to detaching the tamper evidence band 166 from the closure 164 when the end-user twists the closure. Further, as shown in FIG. 4, the cam 200 comprises a continuous shape that extends around the circumference of the tamper evidence band 166. As such, friction between the cam 200 and the bottom-most thread 192 retains the cam within the gap 196 once the closure 164 is loosened from the finish 140.
• the tamper evidence band 166 may be bonded to the support ledge 156, such that the tamper evidence band 166 remains fixated to the support ledge 156 during loosening of the tamper evidence closure 164 on the finish. As such, when an end-user loosens the tamper evidence closure 164 on the finish 140, the multiplicity of thin connections 204 break, leaving the tamper evidence band 166 attached to the finish 140 when the closure 164 can be removed.
• the tamper evidence band 166 may be bonded to the support ledge 156 by way of any of various suitable adhesives, such as any of hot melt adhesives, a Cyanoacrylates, UV-cured adhesives, and 2-part epoxies. Further, in some embodiments, the tamper evidence band 166 may be bonded to the support ledge 156 by way of ultrasonic welding.

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• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Ceramic Engineering (AREA)
• Closures For Containers (AREA)

Applications Claiming Priority (3)

Publications (1)

Family

ID=69591077

Family Applications (1)

Country Status (5)

Family Cites Families (4)

• 2019
  • 2019-08-21 EP EP19852041.3A patent/EP3841025A1/de not_active Withdrawn
  • 2019-08-21 MX MX2021002137A patent/MX2021002137A/es unknown
  • 2019-08-21 CA CA3110225A patent/CA3110225A1/en active Pending
  • 2019-08-21 WO PCT/US2019/047578 patent/WO2020041524A1/en unknown
  • 2019-08-21 AU AU2019326529A patent/AU2019326529A1/en active Pending

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