Vented closure

Information

  • Patent Grant
  • 6474515
  • Patent Number
    6,474,515
  • Date Filed
    Friday, November 10, 2000
    24 years ago
  • Date Issued
    Tuesday, November 5, 2002
    22 years ago
Abstract
A closure for a bottle. The closure includes a spout neck attached to the bottle and a cap rotatably positioned on the spout neck. The spout neck may have a sealing lip and the cap may have an internal vent and an internal body portion. The sealing lip of the spout neck and the body portion of the cap align to seal the bottle when the cap is in a first position. The sealing lip of the spout neck and the circular vent of the cap align so as to vent the bottle when the cap is turned to a second position.
Description




TECHNICAL FIELD




The present invention relates generally to a closure for a beverage bottle and more particularly relates to a closure that vents pressurized gases in a controlled manner while being opened.




BACKGROUND OF THE INVENTION




Non-carbonated beverages such as waters, teas, juices, sports drinks, and the like may be sold in single serving and multiple serving plastic and glass bottles. Plastic bottles, which are more commonly used, may be made out of a PET (Polyethylene Terephthalate) resin. The beverage bottle may be enclosed by a standard screw-off cap or a closure with a pull-up spout that the consumer can open and close with his or her fingers. This type of packaging allows the consumer to open and close the beverage bottle as desired.




Another known type of bottle closure has a twist-top spout. Instead of pulling the spout up as in the pull-up closures, the consumer simply twists the spout. Examples of known twist-top closures are found in U.S. Design Patent Nos. 424,442 and 423,358. These patents are incorporated herein by reference.




Certain types of non-carbonated beverage bottles may be pressurized by injecting liquid nitrogen prior to capping. The nitrogen serves to make the bottle itself somewhat stiff. This bottle stiffness assists in labeling efficiency and in vending machine performance. The target internal bottle pressure after capping may be in the range of about ten (10) to about twenty-five (25) psi. Known twist-top closures, however, generally are not designed to hold internal bottle pressures. For those closures that are intended or designed to be used with a pressurized bottle, one drawback with these closure designs is that there may be some spraying or squirting of the beverage contained in the bottle when the closure is first opened. This spraying or squirting of the beverage may be caused by the sudden release of the internal pressure when the closure is first opened.




Known bottle closures also may use an over-cap of some sort to protect the spout itself. The consumer, however, generally removes the over-cap before the consumer opens the spout. The over-cap therefore generally has not provided any protection from the spraying or squirting described above. Further, while certain known over-caps produced by the applicants herein may be re-attachable, such re-attachable over-caps either have not used a frangible line or the frangible line is not readily visible to the consumer once broken. As such, the re-attachable over-caps may not provide immediate visual evidence of tampering.




What is needed, therefore, is a twist-top, pull-up, or other type of closure for a beverage bottle that holds pressure and provides controlled venting of this pressure during the opening of the bottle so as to eliminate beverage spraying or squirting. The closure and its use should be reasonably inexpensive and should not interfere with existing bottling equipment and methods.




SUMMARY OF THE INVENTION




The present invention thus provides a closure for a bottle. The closure includes a spout neck attached to the bottle and a cap retractably positioned on the spout neck. The spout neck may have a sealing lip and the cap may have an internal vent and an internal body portion. The sealing lip of the spout neck and the body portion of the cap align to seal the bottle when the cap is in a first position. The sealing lip of the spout neck and the circular vent of the cap align so as to vent the bottle when the cap is moved to a second position.




Specific embodiments of the present invention include the spout neck and the cap being made from a substantially rigid thermoplastic. The spout neck may include an extended body portion extending adjacent to the sealing lip. The cap may include a circular rib positioned adjacent to the internal body portion such that the circular rib aligns with the extended body portion of the spout neck when the cap is in the first position and the second position and such that the circular rib aligns with the sealing lip of the spout neck when the cap is in a third position.




The circular vent may include a number of cut out areas and a number of gaps. The circular vent also may include a number of segmented grooves therein. The segmented grooves may include a series of bosses therein. The circular vent may have a predetermined diameter such that an air gap is created when the circular vent aligns with the sealing lip.




The sealing lip of the spout neck may include a spout aperture with a sealing cap positioned therein. The cap may include a top surface with a cap aperture therein. The top surface may include a circular wall surrounding the cap aperture. The circular wall and/or the spout neck may be sized such that the circular wall and the sealing cap of the spout neck align to seal the cap aperture when the cap is in the first position and when the cap is moved to the second position. Specifically, the circular wall and the sealing cap of the spout neck align to seal the cap aperture when the cap is moved to the second position and the sealing lip of the spout neck and the circular vent of the cap align so as to vent the bottle. The circular wall and the sealing cap of the spout neck may align to open the cap aperture when the cap is moved to a third position.




The spout neck may include a base that is removably attachable to the bottle. The spout neck may include a number of recesses positioned on the base such that the cap may be positioned within one of the number of recesses. The spout neck may include a channel positioned thereon while the internal body portion of the cap may include a threaded segment thereon such that the segment engages the channel of the spout neck for movement therein.




The closure may further include an over-cap positioned over the cap. The over-cap may include a flexible thermoplastic. The over-cap may include an internal surface with a raised over-cap rib. The cap may include an exterior surface with a raised cap rib such that the raised over-cap rib and the raised cap rib align to secure the over-cap on the cap. The spout may include an over-cap recess for positioning the over-cap therein. The over-cap may include a frangible line. The frangible line may be positioned below the raised spout rib but above the over-cap recess when the over-cap is positioned therein such that the raised spout rib and the raised cap rib may align to secure the over-cap on the spout while the frangible line is visible.




A further embodiment of the present invention provides for a twist-top closure for a bottle. The closure may include a spout neck mounted to the bottle and a twist cap rotatably positioned on the spout neck. The spout neck may have a sealing lip with an aperture therein. The aperture may have a seal cap positioned therein. The twist cap may have a top aperture surrounded by a circular wall. The seal cap of the spout neck and the circular wall of the twist cap may align to seal the bottle when the twist cap is closed and when the twist cap is moved to a first position. The seal cap of the spout neck and the circular wall of the twist cap also may align to open the bottle when the twist cap is moved to a second position.




A further embodiment of the present invention provides for a twist-top closure for a bottle. The closure may include a spout neck attached to the bottle and a twist cap rotatably positioned on the spout neck. The spout neck includes a sealing lip with a spout aperture. The spout aperture may have a seal cap positioned therein. The twist cap may include an internal vent, an internal body portion, and a top aperture. The seal cap of the spout neck and the top aperture of the twist cap and the sealing lip of the spout neck and the body portion of the twist cap may align to seal the bottle when the twist cap is in a first position. The sealing lip of the spout neck and the circular vent of the twist cap align so as to vent the bottle while the seal cap of the spout neck and the top aperture of the twist cap remain sealed when the twist top is turned to a second position. The sealing lip of the spout neck and the internal body portion of the twist cap align so as to seal the circular vent while the seal cap of the spout neck and the aperture of the twist cap open when the twist cap is turned to a third position.




The method of the present invention provides for venting the internal pressure of a bottle with a beverage therein. The bottle may have a twist-top closure with a spout neck and a twist cap. The spout neck and the twist cap may form an upper seal and a side seal. The method may include the steps of twisting the twist cap such that the side seal opens while the top seal remains closed, venting the internal pressure through the side seal, and twisting the twist cap further such that the side seal closes and the top seal opens to permit the beverage to flow out of the bottle.




Other objects, features, and advantages of the present invention will be apparent upon review of the following detailed description of the preferred embodiments of the present invention when taken in conjunction with the drawings and the appended claims.











BRIEF DESCRIPTION OF THE DRAWINGS





FIG. 1

is an exploded view of the closure of the present invention





FIG. 2

is a top plan view of the spout neck and the base of the closure of FIG.


1


.





FIG. 3

is a top plan view of the twist cap of the closure of FIG.


1


.





FIG. 4

is a top plan view of the over-cap of the closure of FIG.


1


.





FIG. 5

is a side cross-sectional view of the twist cap of the closure of FIG.


1


.





FIG. 6

is a side cross-sectional view of the closure of

FIG. 1

in the sealed position.





FIG. 7

is a partial side cross-sectional view of the closure of

FIG. 1

in the sealed position with the gas stream shown.





FIG. 8

is a side cross-sectional view of the closure of

FIG. 1

in the venting position.





FIG. 9

is a partial side cross-sectional view of the closure of

FIG. 1

in the venting position with the gas stream shown.





FIG. 10

is a partial side cross-sectional view of the closure of

FIG. 1

in the venting position with the gas stream shown.





FIG. 11

is a side cross-sectional view of the closure of

FIG. 1

in the dispensing position.





FIG. 12

is a partial side cross-sectional view of the closure of

FIG. 1

in the dispensing position with the gas stream shown.





FIG. 13

is a partial side cross-sectional view of the over-cap positioned on the spout base.





FIG. 14

is a partial side cross-sectional view of the over-cap being removed from the spout base.











DETAILED DESCRIPTION OF THE INVENTION




Referring now in more detail to the drawings, in which like numerals referred to like parts throughout the several views,

FIGS. 1-5

show a bottle closure


100


of the present invention. The bottle closure


100


may be in the form of a twist-top closure as is described in more detail herein. The bottle closure


100


also may take the form of a pull-top closure or similar designs as are known to those skilled in the art. By way of example, U.S. Pat. No. 6,135,329 shows a closure base that may be used with a twist-top or a pull-top closure. U.S. Pat. No. 6,135,329 is incorporated herein by reference.




The closure


100


may include a base


110


. The base


110


may be made from a substantially rigid thermoplastic such as polypropylene, polypropylene copolymers, high-density polyethylene, or similar types of materials. The base


110


may be made in an injection molding process or by similar manufacturing processes. The base


110


is sized to accommodate a conventional threaded neck


120


of a conventional beverage bottle


130


. The bottle


130


may be made from PET or similar types of flexible thermoplastic materials. The base


110


may include internal threads


140


to mate with the threaded neck


120


of the beverage bottle


130


. The base


110


also may include a ribbed portion


150


about its exterior so as to assist in removing the bottle closure


100


from the bottle


130


if desired. The dimensions of the closure


100


will depend upon the size of the bottle


130


. For example, the base


110


may have a diameter of about 1.25 inches so as to accommodate a conventional 20 fluid ounce bottle


130


.




Positioned on a top portion


155


of the base


110


may be an annular rib


160


. The annular rib


160


may define two annular recesses, an over-cap recess


170


and a twist-top cap recess


180


. The over-cap recess


170


is sized to accommodate an over-cap as explained in more detail below. Likewise, the twist-top cap recess


180


is sized to accommodate a twist-top cap or other type of cap as described in more detail below.




Positioned on the top portion


155


of the base


110


also may be a spout neck


200


. The spout neck


200


may be integrally formed with the base


110


and may be made out of the same materials and through the same processes. The spout neck


200


may include a spout base


210


with one or more channels


215


formed therein. For use with the bottle


130


and the base


110


described above, the spout base


210


may be about 0.3 inches in length and about 0.6 inches in diameter. For use with a twist-top cap, the channel


215


may advance up the spout base


210


in a spiral fashion. The channel


215


may be similar to that disclosed in U.S. Pat. No. 4,967,941, incorporated herein by reference.




The spout neck


200


also may include a venting area


220


positioned on top of the threaded base


210


. The venting area


220


may include a bottom flange


230


and a sealing lip


240


. An extended neck portion


250


may separate the bottom flange


230


and the sealing lip


240


. The bottom flange


230


may be about 0.05 inches in length and may have an upper diameter of about 0.5 inches. The sealing lip


240


may be about 0.1 inches in length and may have a maximum diameter of about 0.55 inches. The extended neck


250


portion may be a substantially smooth surface with a length of about 0.3 inches and a diameter of about 0.5 inches.




Positioned within the sealing lip


240


may be an aperture


260


. The aperture


260


may have a diameter of about 0.5 inches. Positioned within the aperture


260


may be a sealing cap


270


. The sealing cap


270


may be a raised circular structure. The sealing cap


270


may have a diameter of about 0.3 inches and a height of about 0.09 to 0.10 inches. The height of the sealing cap


270


is generally about 0.02 to about 0.03 inches longer than known devices produced by the applicants herein so as to accommodate the twist-top or other type of cap as described in more detail below, although other variations may be used. The sealing cap


270


may be attached to the spout neck


200


via a plurality of ribs


280


or by similar types of structures.




The bottle closure


100


also may include a twist-top cap


300


. The twist-top cap


300


may be a separate element from the spout neck


200


. The twist-top cap


300


, however, may be made from the same materials and through the same processes as the spout neck


200


, although high-density polyethylene is preferred. The twist-top cap


300


may be a substantially hollow structure. The twist-top cap


300


may include a base section


310


. The base section


310


may have an interior surface


320


and an exterior surface


330


. The base section


310


may have a wall thickness that is sized to fit and rotate within the twist-top cap recess


180


of the base


110


. The interior surface


320


of the base section


310


may have a height of about 0.3 inches while the exterior surface


330


may have a height of about 0.2 inches.




The interior surface


320


of the base section


310


may have one or more thread segments


340


formed thereon. The thread segments


340


are designed to cooperate with the channel


215


of the spout base


210


. Specifically, the thread segments


340


fit within the channel


215


so as to elevate the twist-top cap


300


when twisting in one direction and return the twist-top cap


300


to its starting position when twisting in the opposite direction.




Positioned above the exterior surface


330


of the base section


310


may be a raised spout rib


350


. The raised spout rib


350


may be substantially oval in shape. The raised spout rib


350


may extend along the short ends or the perigees


360


of the twist-top cap


300


. The raised spout rib


350


may be substantially eliminated along the long ends or the apogees


370


so as to form a smooth area


375


on both sides of the cap


300


. These smooth areas


375


along the apogees


370


may assist the consumer grasping and turning the twist-top cap


300


.




Positioned above the raised spout rib


350


on the twist-top cap


300


may be a cap body


380


. Similar to the raised spout rib


350


, the cap body


380


may be largely oval in shape. Positioned about the perigees


360


of the cap body


380


above the raised spout rib


350


may be a number of raised ribs


390


. The raised ribs


390


also may assist the consumer in opening the twist-top cap


300


. The area around the apogees


370


of the cap body


380


may be largely smooth and an extension of the smooth areas


375


.




Positioned on the cap body


380


may be a cap top


400


. The cap top


400


may be a substantially flat surface with an aperture


410


positioned therein. The aperture


410


may be sized to accommodate the sealing cap


270


of the spout neck


200


. The aperture


410


may be largely circular in shape. The aperture


410


may define a circular wall


440


. The circular wall


440


may have a length of about 0.06 to 0.10 inches so as to cooperate with the sealing cap


270


of the spout neck


200


. It is understood that the length of the circular wall


440


and/or the length of the sealing cap


270


may be varied such that the two elements interact so as to form a seal of sufficient length as described in more detail below. The cap top


400


also may have arrow


405


or some other sort of indicia printed or formed thereon to indicate the twisting direction of the twist-top cap


300


.




Positioned above the interior surface


320


of the base section


310


of the twist-top cap


300


may be a circular rib


450


. The circular rib


450


may have a length of about 0.02 to about 0.05 inches. The circular rib


450


may have a diameter to accommodate the elements of the spout neck


200


in the sealing and the venting positions as described in more detail below. Specifically, the circular rib


450


may be positioned against the bottom flange


230


of the spout neck


200


in the closed position and then may rise up the extended neck


250


portion as the twist-top cap


300


is turned.




Positioned above the circular rib


450


may be a first circular band


460


. The first circular band


460


may have a length of about 0.05 to about 0.06 inches and a diameter to accommodate the elements of the spout neck


200


in the sealing and the venting positions as described in more detail below. Specifically, the first circular band


460


largely corresponds to the position of the extended neck


250


of the spout neck


200


in the closed position and then may rise up the extended neck


250


portion and the sealing lip


240


as the twist top cap


300


is turned.




Positioned above the first circular band


460


may be a circular vent


470


. The circular vent


470


may have a number of cut out areas


480


separated by a number of gaps


490


. The cut out areas


480


may include a series of segmented grooves


500


therein. The segmented grooves


500


may be in the form of a series of bosses within the cut out area


480


. The circular vent


470


may have a length of about 0.03 to about 0.04 inches and a diameter to accommodate the elements of the spout neck


200


in the sealing and the venting positions as described in more detail below. Specifically, the circular vent


470


may align substantially beneath the sealing lip


240


of the spout neck


200


when the twist-top cap


300


is in the closed position, with the sealing lip


240


as the twist-top cap


300


begins to turn, and above the sealing lip


240


when the twist-top cap


300


is fully turned. The cut out areas


480


may have a diameter of sufficient depth such that an air gap is created therebetween when the cut out areas


480


align with sealing lip


240


.




Positioned above the circular vent


470


may be a second circular band


520


. The second circular band


520


may have a length of about 0.07 to 0.08 inches and about the same diameter as the first circular band


460


. The second circular band


520


may align substantially with the sealing lip


240


of the spout neck


200


when the twist-top cap


300


is in the closed position.




The bottle closure


100


also may include an over-cap


550


. The over-cap


550


may be made from a flexible thermoplastic such as polypropylene, polypropylene copolymers, high density polyethylene, The over-cap


550


may be made in an injection molding process. The over-cap


550


is designed to fit within the over-cap recess


170


of the base


110


.




As is shown in

FIGS. 13-14

, the over-cap


550


may have a circumferential projection


570


positioned within the over-cap recess


170


and a main body


580


extending out of the over-cap recess


170


. Positioned slightly above the circumferential projection


570


may be a frangible line


590


. The frangible line


590


permits the separation of the main body


580


of the over-cap


550


from the circumferential projection


570


. The circumferential projection


570


may still be visible when the over-cap


550


has been removed. The design of the over-cap


550


may be similar to that described in U.S. Pat. No. 5,829,611, incorporated herein by reference.




The over-cap


550


also may have an interior surface


600


. The interior surface


600


may have a raised rib


610


therein. The raised rib


610


may encircle the interior surface


600


. The raised rib


610


is positioned such that it may catch the raised rib


350


of the twist-top cap


300


when the over-cap


550


is repositioned thereon. The over-cap


550


also may have an arrow


615


or some other type of indicia printed or formed thereon to indicate the twisting direction of the over-cap


550


.




In use, the bottle closure


100


is positioned upon the neck


120


of the beverage bottle


130


. As described above, the beverage bottle


120


may be slightly pressurized in the range of about ten (10) to twenty-five (25) psi. To open the bottle


130


, the consumer first removes the over-cap


550


. Removal of the over-cap


550


results in a break in the frangible line


590


. Once the over-cap


550


is removed, the consumer may still be able to see the circumferential projection


570


as an indication that the over-cap


550


has been removed.




The sealed position of the bottle


130


is shown in

FIGS. 6 and 7

. Any pressurized gases within the bottle


130


may be sealed within the bottle closure


100


at two primary seal points. A first seal point


620


may exist between the sealing cap


270


of the spout neck


200


and the circular wall


440


of the aperture


410


of the twist-top cap


300


. The second seal point


630


may exist between the sealing lip


240


of the spout neck


200


and the second circular band


520


of the twist-top cap


300


.




The consumer may then twist the twist-top cap


300


. As the twist-top cap


300


is rotated and rises up the spout neck


200


, the circular vent


470


moves into alignment with the sealing lip


240


of the spout neck


200


. This orientation opens the second seal


630


and allows pressurized gases to pass through the cut out areas


480


or the segmented grooves


500


of the circular vent


570


.

FIGS. 8-10

show the bottle closure


100


in the venting position. The majority of the gas pressure may escape through the circular vent


470


. Although the gases may be vented through the circular vent


470


, the first seal


620


about the aperture


410


of the twist top cap


300


is still closed with respect to the sealing cap


270


and the circular wall


440


. The first seal remains closed due to the prolonged contact between the sealing cap


270


and the circular wall


440


due to the extended length of the sealing cap


270


, the circular wall


440


, and/or both. As such, pressure only vents via the side of the bottle closure


100


.




As the consumer continues to turn the twist-top cap


300


, the circular rib


450


of the twist top cap


300


aligns with or below the sealing lip


240


of the spout neck


200


. This alignment effectively closes the circular vent


470


and forms a third seal


640


. As this point, the circular wall


440


about the aperture


410


of the twist-top cap


300


has cleared the sealing cap


270


of the spout neck


200


such that the first seal


620


is open. The beverage within the bottle


130


is now accessible via the bottle closure


100


. The circular vent


470


is closed, however, so as to prevent liquid from leaking therethrough and along the sides of the closure


100


. The consumer can thus enjoy the beverage within the bottle


130


via the closure


100


. The dispensing position is shown in

FIGS. 11 and 12

.




Turning the twist-top cap


300


in the reverse direction may close the beverage bottle


100


. The sealing cap


270


of the spout neck


200


effectively fills the aperture


410


of the twist-top cap


300


so as to reform a substantially liquid tight seal. The bottle closure


100


also may form an airtight seal, but such may not be necessary once the initial pressure within the bottle


130


has been released.




The over-cap


550


also may be placed back onto the spout neck


200


. In doing so, the raised rib


610


of the over-cap


550


may catch on the raised rib


350


of the twist-top cap


300


so as to secure the over-cap


550


thereon. The over-cap


550


can be removed and replaced multiple times. Although the over-cap


550


may be removed multiple times, it is still apparent that the frangible line


590


has been broken. The use of the over-cap


550


thus provides for easy access to the beverage and also provides sanitary access. The use of the over-cap


550


in this manner also acts as a further means for preventing the spraying of the liquid therein.




It should be apparent that the foregoing relates only to the preferred embodiments of the present invention that numerous changes and modifications may be made herein without departing from the spirit and scope of the invention as defined by the following claims.



Claims
  • 1. A closure for a bottle, comprising:a spout neck attached to said bottle; said spout neck comprising a sealing lip; and a cap positioned for movement on said spout neck; said cap comprising an internal vent and an internal body portion such that said sealing lip of said spout neck and said body portion of said cap align to seal said bottle when said cap is in a first position and such that said sealing lip of said spout neck and said internal vent of said cap align so as to vent said bottle when said cap is moved to a second position.
  • 2. The closure for a bottle of claim 1, wherein said cap comprises a twist cap rotatably positioned on said spout neck.
  • 3. The closure for a bottle of claim 1, wherein said spout neck and said cap comprise a substantially rigid thermoplastic.
  • 4. The closure for a bottle of claim 1, wherein said spout neck comprises a base such that said base is removably attachable to said bottle.
  • 5. The closure for a bottle of claim 4, wherein said spout neck comprises a plurality of recesses positioned on said base such that said cap may be positioned within one of said plurality of recesses.
  • 6. The closure for a bottle of claim 1, wherein said spout neck comprises a channel positioned thereon.
  • 7. The closure for a bottle of claim 6, wherein said internal body portion of said cap comprises a threaded segment thereon such that said segment engages said channel of said spout neck for movement therein.
  • 8. The closure for a bottle of claim 1, wherein said spout neck comprises an extended body portion extending adjacent to said sealing lip.
  • 9. The closure for a bottle of claim 8, wherein said cap comprises a circular rib positioned adjacent to said internal body portion such that said circular rib aligns with said extended body portion of said spout neck when said cap is in said first position and said second position and such that said circular rib aligns with said sealing lip of said spout neck when said cap is in a third position.
  • 10. The closure for a bottle of claim 1, wherein said internal vent comprises a predetermined diameter such that an air gap is created therebetween when said vent aligns with said sealing lip.
  • 11. The closure for a bottle of claim 1, wherein said internal vent comprises a plurality of cut out areas therein.
  • 12. The closure for a bottle of claim 11, wherein said internal vent comprises a plurality of gaps positioned among said plurality of cut out areas.
  • 13. The closure for a bottle of claim 12, wherein said internal vent comprises a plurality of segmented grooves therein.
  • 14. The closure for a bottle of claim 13, wherein said plurality of segmented grooves comprises a plurality of bosses therein.
  • 15. The closure for a bottle of claim 1, wherein said sealing lip of said spout neck comprises a spout aperture therein.
  • 16. The closure for a bottle of claim 15, wherein said spout aperture comprises a sealing cap positioned therein.
  • 17. The closure for a bottle of claim 16, wherein said cap comprises a top surface and wherein said top surface comprises a cap aperture therein.
  • 18. The closure for a bottle of claim 17, wherein said cap aperture comprises a circular wall and wherein said circular wall is sized such that said circular wall and said sealing cap of said spout neck align to seal said cap aperture when said cap is in said first position and when said twist cap is moved to said second position.
  • 19. The closure for a bottle of claim 17, wherein said cap aperture comprises a circular wall and wherein said sealing cap is sized such that said circular wall and said sealing cap of said spout neck align to seal said cap aperture when said cap is in said first position and when said twist cap is moved to said second position.
  • 20. The closure for a bottle of claim 17, wherein said cap aperture comprises a circular wall and wherein said circular wall and said sealing cap are sized such that said circular wall and said sealing cap of said spout neck align to seal said cap aperture when said cap is moved to said second position and said sealing lip of said spout neck and said circular vent of said cap align so as to vent said bottle.
  • 21. The closure for a bottle of claim 20, wherein said circular wall and said sealing cap of said spout neck align to open said cap aperture when said cap is moved to a third position.
  • 22. The closure for a bottle of claim 1, further comprising an over-cap positioned over said cap.
  • 23. The closure for a bottle of claim 22, wherein said over-cap comprises a flexible thermoplastic.
  • 24. The closure for a bottle of claim 23, wherein said over-cap comprises an internal surface and wherein said interior surface comprises a raised over-cap rib.
  • 25. The closure for a bottle of claim 24, wherein said cap comprises an exterior surface and wherein said exterior surface comprises a raised cap rib such that said raised over-cap rib and said raised cap rib align to secure said over-cap on said cap.
  • 26. A twist-top closure for a bottle, comprising:a spout neck mounted to said bottle; said spout neck comprising a sealing lip; said sealing lip comprising an aperture therein; said aperture comprising a seal cap positioned therein; and a twist cap rotatably positioned on said spout neck; said twist cap comprising a top aperture therein; and said twist cap comprising a circular wall surrounding said top aperture such that said seal cap of said spout neck and said circular wall of said twist cap align to seal said bottle when said twist cap is closed and when said twist cap is turned to a first position.
  • 27. The twist-top closure for a bottle of claim 26, wherein said seal cap of said spout neck and said circular wall of said twist cap align to open said bottle when said twist cap is turned to a second position.
  • 28. A twist-top closure for a bottle, comprising:a spout neck attached to said bottle; said spout neck comprising a sealing lip; said sealing lip comprising a spout aperture; said spout aperture comprising a seal cap positioned therein; and a twist cap rotatably positioned on said spout neck; said twist cap comprising an internal vent and an internal body portion; said twist cap comprising a top aperture positioned therein such that (1) said seal cap of said spout neck and said top aperture of said twist cap and (2) said sealing lip of said spout neck and said body portion of said twist cap align to seal said bottle when said twist cap is in a first position and such that said sealing lip of said spout neck and said internal vent of said twist cap align to vent said bottle while said seal cap of said spout neck and said top aperture of said twist cap remain sealed when said twist top is turned to a second position.
  • 29. The twist-top closure for a bottle of claim 28, wherein said sealing lip of said spout neck and said internal body portion of said twist cap align to seal said internal vent while said seal cap of said spout neck and said aperture of said twist cap align to open when said twist cap is turned to a third position.
  • 30. A closure for a bottle, comprising:a spout; said spout comprising a twist top cap; said twist top cap comprising an exterior surface and wherein said exterior surface comprises a raised spout rib; and an over-cap positioned on said twist top cap; said over-cap comprising an interior surface and wherein said interior surface comprises a raised cap rib such that said raised spout rib and said raised cap rib align to secure said over-cap on said twist top cap.
  • 31. The closure for a bottle of claim 30, wherein said spout comprises an over-cap recess for positioning said over-cap therein.
  • 32. The closure for a bottle of claim 31, wherein said over-cap comprises a frangible line, said frangible line positioned below said raised spout rib but above said over-cap recess when said over-cap is positioned therein such that said raised spout rib and said raised cap rib align to secure said over-cap on said spout while said frangible line is visible.
  • 33. A method for venting an internal pressure of a bottle with a beverage therein, said bottle having a twist-top closure with a spout neck and a twist cap, said spout neck and said twist cap forming an upper seal and a side seal, said method comprising the steps of:twisting said twist cap such that said side seal opens while said top seal remains closed; venting said internal pressure through said side seal; and twisting said twist cap further such that said side seal closes and said top seal opens to permit said beverage to flow out of said bottle.
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645 07 Sep 1984 CH
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Non-Patent Literature Citations (4)
Entry
Blue Print Drawing entitled “Long Skirt” Closure dated Nov. 19, 1999.
Blue Print Drawing entitled “28mm TE closure Over-all Dims.” dated Jan. 29, 1999.
Blue Print Drawing entitled “28mm Universal Twist” dated Apr. 27, 1999.
Blue Print Drawing entitled “30-25 Universal Twist” dated Apr. 27, 1999.