Tear band closure

Information

  • Patent Grant
  • 6419101
  • Patent Number
    6,419,101
  • Date Filed
    Tuesday, September 14, 1999
    25 years ago
  • Date Issued
    Tuesday, July 16, 2002
    22 years ago
Abstract
A closure is provided that includes a closure orifice that is at least as large as the container orifice, thereby enhancing drinking and pouring. A non-living hinge or a two-joint, living hinge enables easy opening and pivoting of a top cover completely away from a closure orifice to enable a user to drink directly from the closure. The top cover includes a plug that seals the closure orifice. A tear band encircles most of the top cover and secures the lid to the base, and provides tamper resistance. After detaching the tear band, the closure may be pivoted open about the hinge to its fully open position.
Description




BACKGROUND




This invention relates to closures for containers, and more particularly to reusable, tamper evident, dispensing closures for containers of liquid or paste products.




Containers having removable, re-usable closures may be employed for retail packaging of virtually any flowable product. Numerous configurations and sizes are employed depending on the particular characteristics of the product, its intended use, and similar parameters. Products suitable for packaging in such containers include viscous liquids (for example, shampoo, conditioner, lotions, oils, and the like), low viscosity liquids (for example, beverages such as water, juices, carbonated sodas), and granular powders (for example, detergents, spices, and the like).




For many products, including viscous liquids, the size of the container orifice typically is determined according to the desired throughput of the orifice based on the product viscosity. For example, paste-like, high-viscosity dishwasher detergent may require a larger orifice to encourage flow therethrough than would a shampoo. Likewise, a low-viscosity oil, such as baby oil, which has a lower viscosity than shampoo, would require a smaller orifice than that for shampoo.




Liquid beverages typically are provided for retail sale and subsequent use in a plastic container having a removable, screw-type closure with a frangible tamper evident band formed at its bottom concentrically around the container neck, such as that disclosed in co-pending U.S. patent application Ser. No. 09/032,542, now U.S. Pat. No. 6,085,921 entitled, “Tamper Evident Band With Undercut,” and co-pending U.S. patent application Ser. No. 09/224,962, now U.S. Pat. No. 6,253,939 entitled, “Tamper Evident Closure Having Improved Drainage,” each of which are incorporated herein by reference in its entirety. After initial tearing of the tamper evident band and removal of the closure from the container, the closure may be reused by screwing the closure onto the threads on the container neck. Because the closure is fully removed before using, the pour opening is unencumbered by the closure, which enhances pouring or drinking from the container's opening.




Many containers, including many 16 ounce and two liter beverage containers, have a neck with a 28 mm finish, which has become a standard size in the beverage packaging industry. The internal diameter of the container neck of a 28 mm finish is often approximately 0.86 inches. Liquid beverages are sometimes packaged with containers having enlarged orifices (that is, larger than the 28 mm closure).




Some liquid beverage containers have a push-pull dispenser attached, the combination of which is sometimes termed a “sports bottle.” A typical example of a push-pull dispenser is disclosed in U.S. Pat. No. 5,104,008, entitled, “Resealable Bottle Cap With Push-Pull Closure.” Push-pull dispensers often include an upstanding pour spout or tube registering with an opening in the center of the cap and a smaller diameter plug positioned above the pour spout. A top cap is movably attached to the pour spout and has an opening in registration with the plug. The top cap is vertically movable to an upper position in which the opening is spaced apart from the plug to enable liquid dispensing and a lower position in which the opening is sealed by the plug. Push-pull dispensers typically have threads for screw connection with the neck of the container, and a tamper evident band as described above.




Although the push-pull dispenser may permit access to the liquid product without unscrewing the entire closure from the container neck, many users dislike the pouring characteristics of the push-pull dispenser, which often produces a narrow stream of fast moving liquid. Many users prefer the unencumbered access to the pour opening for drinking and pouring from the bottle neck to the smaller push-pull opening. Unscrewing a push-pull dispenser to uncover the container neck makes the push-pull dispenser superfluous. Further, conventional push-pull dispensers require a user to grasp the mouthpiece by hand. Such hand or finger contact of the mouthpiece promotes unsanitary and unhealthy conditions, especially in light of the frequent use and actuation of the push-pull mechanism. Even if the push-pull dispenser is used to dispense liquid into a container or cup for drinking, the top plug of the dispenser is exposed and likely to be subjected to dirt or other contaminants.




It is a goal of the present invention to provide a closure having good pour characteristics and a provision to indicate tampering, and that is easy to use.




SUMMARY OF THE INVENTION




A closure for a container for use with a flowable product is provided that comprises a closure body and a top cover. The closure body has a spout sidewall and a circumferential skirt downwardly depending from the sidewall. The sidewall defines an orifice therein for dispensing the product therethrough. The top cover, which removably covers the closure orifice, includes a circumferential base coupled to the closure body; a movable lid including a cover and a plug downwardly extending from the underside of the lid; a tear band removably coupled to the lid; and a hinge pivotally coupling the lid to the base.




The tear band and the hinge are disposed substantially around a perimeter of the cover. Preferably, except for a pair of slots that are disposed on each side of the hinge and that separate the hinge from the tear band, the tear band and the hinge circumscribe the perimeter of the lid. The tear band is upwardly inclined such that un upper, planar portion of the lid is disposed above the base to provide space for the plug to be insertable into and removable from the spout wall. The plug is removably insertable into the spout to seal the orifice, which isolates the product within the container. Preferably, the spout and the plug have a height (that is, along a centerline of the closure) and a fit that provides an airtight seal therebetween, even against positive pressure (that is, pressure greater than standard atmospheric pressure) contained within the container.




The closure has a tamper-resistant position in which the tear band couples the lid to the base to prevent actuation of the lid, a closed position in which the tear band is detached from the top cover and the plug is sealably disposed within the closure body orifice, and an open position in which the lid is spaced apart from the orifice via pivoting about the hinge to enable dispensing of the flowable (preferably liquid) product. The orifice has a diameter that is at least as large as a container neck orifice, preferably along the entire height of the spout wall, such that the diametral relationship between the closure orifice and the container neck orifice enhances pour characteristics of the closure by, for example, eliminating constrictions in the closure.




Further, especially with respect to a 28 mm closure, a user is familiar with the container neck orifice pouring and dispensing characteristics (that is, the rate of product flow over a range of inclination angles of the container, the angle at which the container orifice is choked, and like characteristics). Thus, providing the closure with an enlarged opening similar in size or larger than the container neck opening provides the user with predictable and familiar pouring and dispensing characteristics. Moreover, such a closure orifice provides a relatively large flow rate compared to sport bottle closures and similar closures that have an outlet constriction.




The hinge is configured such that the lid is pivotable away from the spout to render the spout freely accessible while the closure is in the open position. The lid may pivot more than 180 degrees, and preferably approximately 270 degrees, to be entirely disposed outside of an imaginary vertical geometric projection that projects from the closure orifice along a longitudinal centerline of the closure, as well entirely disposed below an uppermost portion of the spout. A user's mouth, therefore, has complete access to the spout to enable the user to drink directly from the closure.




In addition to the benefits of the pour opening, the closure has easy-opening characteristics. The closure enables removal of the lid to expose the orifice without unscrewing the entire closure from the container neck. Further, the opening and closing of the lid may be accomplished with little or no contact between the closure parts that contact the user's mouth and the user's hand or finger(s) during the opening and closing processes, which promotes cleanliness of the closure.




The hinge may be either a non-living hinge, or include a pair of living hinges disposed on opposing sides of a panel. A snap boss and a matching snap recess are disposed on the closure top cover to releasably secure the lid in the open position.











BRIEF DESCRIPTION OF THE FIGURES





FIG. 1

is an exploded perspective view of an embodiment of the closure according to the present invention;





FIG. 2

is an exploded side view of the embodiment of

FIG. 1

;





FIG. 3A

is a cross sectional view of the closure and container combination in the tamper resistant position, taken through a portion that is spaced apart from the hinge and the tabs;





FIG. 3B

is a cross sectional view of the closure and container combination taken through the hinge area with the closure in the closed position;





FIG. 3C

is a cross sectional view of the closure and container combination taken through the hinge area with the closure in the open position;





FIG. 4

is a cross sectional view of a body portion of the closure taken along line


4





4


of

FIG. 1

;





FIG. 5

is a cross sectional view of a top cover portion of the closure taken along line


5





5


of

FIG. 1

;





FIG. 6

is another cross sectional view of the top cover portion of the closure taken through the hinge area away from the snap through line


6





6


of

FIG. 1

;





FIG. 7

is an enlarged cross sectional view of a portion of the closure taken along line


7





7


of

FIG. 1

;





FIG. 8

is an enlarged cross sectional view of a portion of the closure indicated in

FIG. 5

as area


8


;





FIG. 9

is an enlarged cross sectional view of a portion of the closure indicated in

FIG. 6

as area


9


, corresponding to the closure in a closed position;





FIG. 10

is an enlarged cross sectional view of the portion of the closure shown in

FIG. 9

, corresponding to the closure in an open position;





FIG. 11

is a perspective view of a closure according to a second embodiment of the present invention shown in the tamper resistant position;





FIG. 12

is a cross sectional view of the closure of the second embodiment taken along lines


12





12


of

FIG. 11

;





FIG. 13

is an enlarged cross sectional view of a portion of the closure indicated in

FIG. 12

as area


13


;





FIG. 14

is a cross sectional view of a portion of the closure shown in

FIG. 11

, with the top cover removed for clarity;





FIG. 15

is a cross sectional view of a portion of the top cover shown in

FIG. 11

taken through the hinge area in the tamper resistant position;





FIG. 16

is a perspective view of the closure shown in

FIG. 11

in the closed position with the tear band detached;





FIG. 17

is a perspective view of the closure shown in

FIG. 11

in the open position.











DETAILED DESCRIPTION OF A PREFERRED EMBODIMENT




Referring to

FIGS. 1 through 10

to illustrate a first embodiment of the present invention, a closure


10




a


is removably coupled to a container


11


, as best shown in

FIGS. 3A and 3B

. Closure


10




a


defines a longitudinal axis C that is disposed at the centerline of the closure, which is co-linear with the longitudinal axis of the container orifice. As best shown in

FIGS. 1

,


2


, and


3


A, closure


10




a


includes a closure body


12




a


and a top cover


14




a,


which preferably are independently formed of injection molded or compression molded, conventional plastic.




As best shown in

FIG. 4

, closure body


12




a


includes a spout


22




a


and a circular skirt


19




a


that preferably is integrally formed with spout


22




a


and depends downwardly therefrom. Spout


22




a


has an outer diameter that is smaller than an outer diameter of skirt


19




a.


Closure body


12




a


may also have an inwardly extending flange or ring


20




a


that extends concentrically inside of the innermost portion of spout


22




a.


Spout


22




a


is formed by a wall


23




a


that includes an inside surface


24




a,


an outside surface


24




b,


and a top rim


24




c


disposed around the top edge of wall


23




a.






Wall


23




a


preferably is concentric with longitudinal centerline C to center orifice


26




a


in closure


10




a


and to align orifice


26




a


with the pour opening of container


11


. Preferably, spout


22




a


(that is, orifice


26




a


) has an inside diameter D


1


(as shown in

FIG. 4

) of approximately 0.906 inches. Orifice


26




a


may have diameter D


1


that is consistent throughout closure


10




a


(that is, the walls forming orifice


26




a


are smooth, continuous, and cylindrical).




Alternatively, the diameter of orifice


26




a


may vary in diameter at different locations along its height, either because of tapering or protrusions or recesses, such as at ring


20




a.


It is preferred, however, that orifice


26




a


have a minimum diameter (that is, the inside diameter at the narrowest portion of spout


22




a


) that is similar to, equal to, or larger than that of the container neck inside diameter. Thus, the inner diameter of ring


20


and crabs claw seal


82




a,


which is explained below, preferably are approximately equal to or larger than the inner diameter of the pour opening in the neck of container


11


.




Spout wall


23




a


extends upwardly from skirt


19




a,


although it may also extend downwardly therefrom according to the design parameters of the particular closure. Wall


23




a


has an outermost diameter that is less than an outer diameter of skirt


19




a.


Wall inside surface


24




a


is shown as smooth, although the present invention encompasses protrusions (such as steps, bosses, and the like) and other surfaces that cooperate with a top cover extension or plug


86




a,


which will be described below, especially to provide or augment sealing therebetween.




Wall outside surface


24




b


preferably is downwardly, outwardly tapered. Inside surface


24




a


is preferably cylindrical. Thus, spout


22




a


is upwardly tapered (that is, has a gradually decreasing outside diameter toward rim


24




c


). The present invention encompasses orifices having oval and other shapes that are not circular (not shown).




A circumferential undercut or recess


31


is formed on the outside surface


24




b


of spout wall


23




a


at a bottom portion thereof. Specifically, recess


31


is formed at the junction between spout wall


23




a


and a substantially horizontal shoulder


35




a


formed at the top of skirt


19




a.


Recess


31


preferably enables top cover


14




a


to securably attach to body


12




a


by cooperation with a circumferential tongue


63


, as described below.




Skirt


19




a


is substantially annular and generally cylindrical, and includes vertically oriented ribs


36




a


(as best shown in

FIG. 2

, but omitted from

FIG. 1

for clarity) disposed on its outer surface to enhance gripping by a user. Shoulder


35




a


extends substantially horizontally from spout wall


23




a


and yields to an annular bevel


37




a


that is disposed on an upper portion of skirt


19




a


above the ribs


36




a,


and above the substantially vertical, outside periphery of skirt


19




a.


At least one thread


38




a,


is disposed on its inner surface for mating to a corresponding thread on the container


11


, as shown in FIG.


4


.




Referring to

FIG. 1

,

FIG. 2

, and

FIG. 4

, skirt


19




a


may be coupled to a tamper evident band


40




a,


which is a band or ring that circumferentially engages and frangibly connects to the open, lower end of a lower portion of skirt


19




a.


The inner surface of tamper evident band


40




a


contains a flange


41




a,


which when placed on the container, hooks under a lug formed on the container neck. Tamper evident band


40




a


has sufficient resilience and elasticity so that flange


41




a


has a diameter slightly smaller than the diameter of the lug, yet can be placed or formed over the lug.




The frangible connection, designated by reference numeral


42




a


in the Figures, can withstand the outward deflection during application of closure


10




a


to the container


11


, but yields under tension upon removal. Thus, when closure


10




a


is removed from the package, the force required to pull flange


41




a


over the lug is greater than the force required to break frangible connection


42




a.



FIG. 3B

shows flange


41




a


in a detached position after the frangible connection has been ruptured.




Top cover


14




a


includes a base portion


48




a,


a tear band


50




a,


and a movable lid


52




a.


Lid


52




a


includes a hinge


54




a


that enables movement of lid


52




a


relative to base portion


48




a.


Preferably, top cover


14




a


is formed from a continuous piece of plastic by injection molding or compression molding, although the present invention encompasses forming top cover


14




a


in two or more pieces, forming all or portions of body


12




a


with top cover


14




a,


or forming portions of top cover


14




a


with body


12




a.






Top cover


14




a


forms at least three states or positions: a tamper resistant position in which tear band


50




a,


is attached to top cover


14




a


(as shown in

FIGS. 1

,


2


, and


3


A), a closed position in which tear band


50




a,


is detached from top cover


14




a


and top cover


14




a


covers orifice


26




a


(as shown in FIG.


3


B), and an open position in which top cover


14




a


is not covering orifice


26




a


and is substantially spaced apart therefrom (as shown in FIG.


3


C and diagrammatically in FIG.


10


).

FIG. 3A

,

FIG. 3B

, and

FIG. 3C

illustrate the tamper resistant position, the closed position, and the open position.

FIG. 3A

is a cross sectional view taken though closure


10




a


away from the hinge, and FIG.


3


B and

FIG. 3C

are cross sectional views taken through closure


10




a


through the hinge area. The term “detach” and forms thereof used with respect to the tear band in the specification and appended claims may refer to fully disconnecting the tear band such that it may be discarded or to partially disconnecting the tear band such that the lid is free to move but the tear band remains attached to some portion of the closure, although the latter configuration is not shown.




Referring to FIG.


1


and

FIG. 2

, and the cross sectional views thereof, top cover


14




a


is disposed generally on top of body


12




a.


As best shown FIG.


3


A and

FIG. 3B

, base portion


48




a


is coupled to closure body


12




a.


Base


48




a


is substantially annular and includes an outer face


59


and an inner face


61


that opposes outer face


59




a.


As shown in FIG.


5


through

FIG. 10

, base


48




a


has a generally rectangular cross section and has an inwardly protruding, circumferential tongue


63


and a downwardly protruding, annular tapered edge


65


. Referring particularly to FIG.


5


through

FIG. 9

, base


48




a


forms a shoulder


57




a


on a top portion thereof.




Tongue


63


is disposed on a lower portion of base


48




a


and protrudes from inner face


61


. Tongue


63


has a cross section that matches (that is, fits tightly into) recess


31


such that recess


31


receives tongue


63


to securely couple top cover


14




a


to closure body


12




a.


Tapered edge


65


protrudes downwardly from a bottom of base


48




a


such that its outer surface is flush or even with outer face


59


. Tapered edge


65


is tapered or beveled to match (that is, fit tightly over) bevel


37


of closure body


12




a


to form a smooth transition between the outer surfaces of closure body


12




a


and top cover


14




a.






Specifically, outer face


59


of top cover


14




a


is substantially vertical, and has approximately the same outer diameter as the outer diameter of an upper portion of skirt


19




a


such that the combination of body


12




a


and top cover


14




a


provide a smooth surface at the junction thereof. Because of the substantially tight fit between tongue


63


and recess


31


and between tapered edge


65


and outer face


59


, top cover


14




a


preferably cannot be removed from closure body


12




a


without providing evidence of tampering, such as pry or gouge marks at the interface between top cover


14




a


and closure body


12




a.






Referring again to FIG.


5


through

FIG. 10

, tear band


50




a


preferably is curved around the longitudinal axis C of the closure. Alternatively, the tear band may be offset (not shown) from centerline C to locate at least a portion of the lid at a predetermined, desired position relative to the hinge. Tear band


50




a


has a membrane-like outer frangible connection


72




a


and a membrane-like inner frangible connection


74




a


that have substantially matching profiles. Thus, tear band


50




a


is formed by connections


72




a


and


74




a


disposed on an inner and outer portion thereof. The body of tear band


50




a


extends inwardly and inclines obliquely upward from base


48




a.


Thus, tear band


50


may form a portion of a frustum. The term frustum, as used in the written description and appended claims, refers to a base portion of a cone.




Outer connection


72




a


is formed between an outer edge of tear band


50




a


and an inner rim


66




a


of base


48




a,


as best shown in

FIG. 3A

,

FIG. 3B

, and FIG.


3


C. Inner rim


66




a


is formed on an inboard side of base shoulder


57




a.


Inner connection


74




a


is formed between an outer edge of tear band


50




a


and an outer rim


85




a


of lid


52




a,


which is described below.




Connections


72




a


and


74




a


are thin continuous membranes (relative to the thickness of the body of tear band


50




a


) formed by thin-walled portions of top cover


14




a


to enhance breaking when urged by a user. Top cover


14




a


may be formed of a material having properties that enable connections


72




a


and


74




a


to tear in response to peeling of tear band


50




a,


such as, for example, polyethylene.




Preferably, in the tamper resistant position, top cover


14




a


is continuous (that is, unbroken or without passages between its interior and exterior) over base


48




a,


connection


72




a,


tear band


50




a,


connection


74




a,


and lid


52




a,


except for a pair of slots


79




a


and


80




a


disposed near hinge


54




a


as shown in FIG.


1


and FIG.


2


. Thus, tear band connections


72




a


and


74




a


discourage liquids and other contaminants from passing through top cover


14




a.


Alternatively, connections


72




a


and


74




a


may link tear band


50




a


to base


48




a


and lid


52




a


by structural bridges inter-spaced between slots (not shown in the Figures). For example, radially disposed structural members (not shown) may frangibly connect the tear band to the top cover. In configurations in which the connections do not prevent liquid or debris from the underside of the lid, the closure body may include drainage holes in the closure body or top cover base, or other provisions, to enable liquid to drain from under the top cover.




As best shown in FIG.


1


and

FIG. 2

, tear band


50




a,


has a first end


77




a


and an opposing second end


78




a


that are disposed proximate slots


79




a


and


80




a,


respectively. A first end tab


75




a


is formed at the first end


77




a


of tear band


50




a,


and an opposing second end tab


76




a


is formed at the second end


78




a


of tear band


50




a.


Either of the tabs


75




a


or


76




a


may be gripped by a user to begin the process of detaching tear band


50




a


from base rim


66




a


and lid rim


85




a,


as best shown in FIG.


7


. It is preferred that tabs


75




a


and


76




a


each protrude above other, adjacent portions of the closure


10


, as shown in

FIG. 7

, to enhance the ease of gripping by a user.




Specifically, a user may grip either tab


75




a


or


76




a


and initially pull substantially radially outward from closure


10




a


to detach tear band


50




a


at connections


72




a


and


74




a


proximate the tab. Upon initial detachment of the tear band


50




a


from base rim


66




a


and lid rim


85




a


at the end of the tear band


50




a,


the tear band may be progressively detached counter-clockwise (gripping tab


75




a


) or clockwise (gripping tab


76




a


) until tear band


50




a


is fully detached from the remainder of closure


10




a.


The tear band


50




a


may then be discarded.




The embodiment of the tear band is described herein for illustrative purposes, although the present invention is not limited thereto. Rather, the present invention encompasses numerous configurations and geometries of the tab and tear band, as will be understood by persons familiar with plastic closure technology or with technology relating to detachable, plastic members such as tear bands.




Lid


52




a


includes the hinge


54




a,


a snap


56




a,


a cover


84




a,


and a plug


86




a.


Cover


84




a


is a substantially planar, circular, disk-like member, a top side of which is exposed while closure


10




a


is in the tamper resistant position and the closed position. Cover


84




a


has a center that is coincident with centerline C, thereby centering lid


52




a


relative to orifice


26




a


and container


11


. As shown in the Figures, especially FIG.


7


and

FIG. 8

, a skirt


87




a


extends downward from the periphery of cover


82




a


and is tapered to enhance contact with the tapered, outside wall surface


24




b


while the closure is in the tamper resistant position or the closed position. Rim


85




a


is formed on the lowermost tip of skirt


87




a.






Cover


84




a


is coupled to an upper portion of hinge


54




a


at a peripheral edge thereof. The rim of cover


84




a


may lack a skirt where it yields to hinge


54




a,


or the skirt may be formed to accommodate the hinge. For example, as best shown in

FIG. 9

, the skirt


87




a


may extended radially and downwardly to smoothly yield to an inclined panel


95


of the hinge, described below, and have an inboard surface that mates with or contacts the tapered surface


24




b


of the spout wall


23




a.






Plug


86




a


depends downwardly from the underside of cover


84




a.


Plug


86




a


preferably is cylindrical such that plug


86




a


extends substantially perpendicular from the underside of cover


84




a.


It is preferred that plug


86




a


is sealably insertable into the orifice


26




a.


Although the Figures show a circular plug, the present invention encompasses oval and other non-circular orifice shapes. It is preferred, however, that the plug and the orifice have matching profiles to facilitate sealing therebetween.




Plug


86




a


preferably has a tapered portion disposed around at the end of its cylindrical body portion at its lower, outer edge to enhance ease of insertion into and removal from spout wall


23




a.


Thus, the plug should have a centerline line that is co-linear with that of the orifice, and plug


86




a


preferably has a centerline axis that is co-linear with centerline C. The present invention encompasses, however, the plug being offset or eccentric with the cover (although this configuration is not shown in the Figures) to facilitate removing and inserting the plug into the orifice.




An outer circumferential surface of plug


86




a


forms a sealing surface


88




a,


as shown in

FIG. 7

,

FIG. 8

, and FIG.


9


. Sealing surface


88




a


preferably has an outer diameter and profile that matches the inner diameter and profile of spout wall


23




a


inner surface


24




a


such that a seal is formed therebetween upon insertion of plug


86




a


into orifice


26




a.


The contact between surface


24




a


and


88




a


is shown in

FIG. 9

, which shows the spout in phantom.




Sealing surface


88




a


has an outer diameter that is smaller than the outer diameter of cover


84




a


such that plug


86




a


is disposed concentrically within and spaced apart from cover skirt


87




a.


Thus, sealing surface


88




a


and the inboard surface of cover skirt


87




a


form a substantially V-shaped groove (in cross section) into which spout wall


23




a


may be removably disposed while closure


10




a


is in the tamper resistant position and the closed position.




Further, plug


86




a


and/or spout wall


23




a


may include an annular bead (like that described with respect to bead


106


and recess


108


, shown in

FIG. 12

, of the second embodiment below) to enhance sealing therebetween and to provide an audible indication that the plug is fully seated into the orifice, as will be understood by persons familiar with plastic closure technology or re-usable closure technology in light of the present disclosure.




Hinge


54




a


is disposed between tear band first tab


75




a


and second tab


76




a,


and, separated therefrom by slots


79




a


and


80




a,


respectively. Preferably, tear band


50




a


circumscribes the majority of the circumference of cover


84




a,


and hinge


54




a


and slots


79




a


and


80




a


circumscribe the remaining circumference of cover


84




a.


Hinge


54




a


includes a non-living hinge portion


93


and an inclined panel


95


. Panel


95


has a lower edge that is coupled to an upper edge of non-living hinge


93


and an upper edge that is coupled to the outer periphery of cover


84




a.


As described above, skirt


87




a


yields to panel


95


. Panel


95


and non-living hinge


93


are configured to form an oblique angle greater than 90 degrees and less than 180 degrees therebetween, such as, for example approximately 135 degrees therebetween.




Non-living hinge


93


has a lower edge that is coupled to an inboard portion of shoulder


57




a


of base


48




a,


and extends substantially vertically upward therefrom while closure


10




a


is in the tamper resistant position and the closed position. As shown in FIG.


3


C and in

FIG. 10

, non-living hinge


93


is flexible over its entire height (that is, substantially along the vertical axis as shown in

FIG. 3B

) to enable lid


52




a


to move from the closed position to the open position.




Hinge


54




a


is configured such that lid


14




a


pivots past 90 degrees. Thus, non-living hinge


93


enables cover


84




a


and plug


86




a


to pivot from the top of base


48




a


such that it may be disposed entirely outside of a vertical, geometric projection


100


of orifice


26




a


while closure


10




a


is in the fully open position. As shown in

FIG. 3C

, vertical, geometric projection


100


is an imaginary, cylindrical extension of orifice


26




a


or spout wall inside surface


24




a.


Lid


52




a


being disposed outside of geometric projection


100


in the open position enables a user to drink directly from spout


22




a.


Further, such a position enhances the pouring characteristics of the closure by providing good visibility of the pour opening and preventing the movable lid


52




a


from interfering with the flowing product during pouring.




A snap


56




a


is formed on top cover


14




a


to releasably secure top cover


14




a


while it is in the fully open position. Snap


56




a


includes a boss


102




a


formed in a first portion of closure


10




a


and a mating recess


104




a


for receiving the boss


102




a


formed in a second portion of closure


10




a.


The first and second portions may be brought into mutual contact or close proximity in response to opening the closure


10




a


to its fully open position. Boss


102




a


preferably is disposed on one of base


48




a


and either cover


84




a


or hinge panel


95


, and mating recess


104




a


is disposed in the other of base


48




a


and either cover


84




a


or hinge panel


95


.




Preferably, as shown in FIG.


1


and

FIG. 10

, boss


102




a


extends radially outwardly from hinge panel


95


proximate the periphery of cover


84




a.


Snap recess


104




a


is formed on base


48




a


directly below boss


102




a.


Boss


102




a


and snap recess


104




a


are preferably both rectangular. Preferably, both snap boss


102




a


and the snap recess


104




a


are formed on top cover


14


for injection molding and alignment considerations. Referring particularly to

FIG. 10

, fully flexing non-living hinge


93


(that is, pivoting lid


52




a


to the fully open position) enables boss


102




a


to make contact with recess


104




a.


Boss


102




a


is, thus, removably inserted or snapped into recess


104




a


to releasably secure lid


52




a


to base


48




a.


The closure is, thus, in position for pouring or drinking directly therefrom, during which process lid


52




a


remains releasably secured to base


48




a


via the snap.




As shown in

FIG. 4

, lid


52




a


also includes a conventional crab claw seal


82




a


that extends inwardly and downwardly from the underside of cover


84




a.


As shown in FIG.


3


A through

FIG. 3C

, seal


82




a


deflects or otherwise forms a seal between its lip portion and the top rim of container neck


11


to seal closure


10




a


while closure


10




a


is fully screwed onto container


11


. Seal


82




a


may deflect more than shown in

FIG. 3A

, and may deflect until seal


82




a


contacts the underside of ring


20




a.


The crab claw seal is provided to illustrate a type of seal that may be employed, and the present invention encompasses any type seal between closure


10




a


and container


11


.




Closure


10




a


may be coupled to container


11


via thread closure


38




a,


which engages a matching thread


39




a


on the outside of the container neck. The seal provided by closure


10




a


of container


11


while fully threaded together is airtight in both the tamper resistant position and the closed position. The airtight seal may be provided by the airtight fit between sealing surface


88




a


of plug


86


and spout


22




a,


the contact between the lip of crabs claw seal


82




a


with the top rim of the container neck, or a combination thereof.




According to an aspect of the present invention, orifice


26




a


has diameter D


1


(shown in

FIG. 4

) that is approximately equal to, or larger than, an inside diameter D


2


of the container neck (shown in FIG.


3


A). Preferably, diameter D


1


is 0.906 inches while diameter D


2


is a standard 0.86 inches for a 28 mm closure. The present invention encompasses a closure having an orifice that is substantially equal in diameter to the container neck (that is, diameter D


1


may be 0.86 inches for use with a 28 mm finish having diameter D


2


of 0.86 inches).




Further, the present invention encompasses a closure having a diameter D


1


that is smaller than container diameter D


2


, but having other aspects of the present invention. In embodiments in which diameter D


1


is smaller than diameter D


2


, it is preferred that orifice


26




a


have a cross sectional area that is at least 60 percent of the cross sectional area of the container neck opening, more preferably 75 percent, more preferably 82 percent, and even more preferably 90 percent thereof.




Such a relatively large closure orifice diameter D


1


compared with the container neck orifice diameter D


2


, in contrast (for example) to a push-pull sports bottle mechanism, enhances the ease at which a user may drink directly from the closure. For example, when employed with a standard 28 mm container, closure


10




a


provides access by a user's mouth to the full area of the container's orifice


26




a.


Specifically, lid


52




a


is enabled to pivot such that movable lid


84




a,


plug


86




a,


and hinge


54




a


are spaced apart from orifice


26




a


and from the upper portions of closure


10




a


to enable a user's mouth to directly access orifice


26




a


by enabling the user's mouth or lips to encircle or engage spout


22




a


and/or base


48




a.






Thus, closure


10




a


provides a combination of ease of opening (that is, especially after initially removing tear band


50




a,


the lid


52




a


may be readily opened by the user without fully unscrewing the closure from the container neck), direct drinking capability upon such easy opening, and tamper resistance or evidence. Further, the user is familiar with the full size orifice of the 28 mm finish closure, and generally has prior experience with drinking and pouring from the full size orifice. Thus, closure


10




a


also provides predictable liquid pouring characteristics within the experience of most users. The ease and familiarity of pouring characteristics is also beneficial for viscous liquids (such as shampoo, conditioner, lotions, oils, food gels, and the like) and flowable powders or granules.




Referring to FIG.


1


through

FIG. 10

to illustrate the function and operation of the present embodiment, and particularly to

FIG. 3A

,

FIG. 3B

, and

FIG. 3C

, closure


10




a


is intended to be shipped, stored, and provided in the tamper-resistant position shown in FIG.


3


A. Thus, tear band


50




a


and tamper evident band


40




a


are intact and attached to provide tamper resistance or tamper evidence until closure


10




a


is ready for initial use by a user. Plug


86




a


is fully inserted into orifice


26




a


such that spout inner surface


24




a


contacts the outer periphery of plug


86




a


at sealing surface


88




a,


the tapered portion of spout outer surface


24




b


contacts the tapered or inclined portion of cover skirt


87




a,


and spout upper rim


24




c


may contact the underside of the V-shaped groove formed between plug


86




a


and cover skirt


87




a.


Any of the above contacting surfaces or members may form or augment the seal between container


11


and closure


10




a,


preferably in cooperation with crabs claw seal


82




a.


The membranes of connections


72




a


and


74




a


are intact, and therefore inhibit liquid or solid contaminants from reaching the underside of top cover


14




a.






To change closure


10




a


from the tamper resistant position to the closed position (that is, to begin the opening process), a user may grasp tear band


50




a


at either tab


75




a


or tab


76




a.


Tab


75




a


or tab


76




a


(depending on which tab is grasped) is pulled radially outward and/or upward to detach tear band connections


72




a


and


74




a


around the circumference of cover


84




a.


Tear band


50




a


is detached by pulling until band


50




a


fully detaches from base rim


66




a


and lid rim


85




a.


A user may discard tear band


50




a


upon fully detaching band


50




a


from base


48




a


and lid


52




a.






Upon fully detaching tear band


50




a,


closure


10




a


is in the closed position, as shown in FIG.


3


B. The lack of tear band


50




a


indicates that the closure had previously been opened. To move closure


10




a


from the closed position to the fully open position, the user may urge upward against cover


84




a


at the periphery of cover skirt


87




a


approximately opposite hinge


54




a.


Such upward urging may be, for example, by a user's thumb while the remainder of the user's hand grasps the container neck and/or closure. Because the user may open the closure by touching only the rim of cover


84




a,


rather than by touching portions of the spout (or by lightly or incidentally touching only a small portion of the spout), spout


22




a


does not become contaminated by dirt or other unsanitary conditions from a user's hands or fingers, thereby promoting cleanliness of the spout and other portions likely to contact the user's mouth upon directly drinking therefrom. Further, the base


48




a


and lid


52




a


partially protect spout


22




a


from contamination by contact, especially while closure


10




a


is in the closed position.




In response to the upward urging, plug


86




a


slides out from spout wall


23




a


such that plug sealing surface


88




a


slides relative to spout inner surface


24




a.


As top cover


14




a


moves relative to base


48




a,


non-living hinge


93


flexes to enable lid


52




a


to move from the closed position toward the fully open position.




After further movement of lid


52




a


away from orifice


26




a,


hinge


54




a


is fully, flexibly pivoted from the closed position to the fully open position as shown in FIG.


3


C. Thus, hinge panel


95


is disposed substantially in a vertical position such that snap boss


102




a


is snapped into snap recess


104




a


to releasably hold lid


52




a.


Thus, in the fully open position, panel


95


lies outside of the outer periphery of base


48




a


and/or skirt


19




a.






Because hinge


54




a


includes non-living hinge


93


, all portions of lid


54




a,


including cover


84




a,


plug


86




a,


and (preferably) hinge


54




a,


are disposed outside of and spaced apart from orifice


26




a.


Specifically, all portions of lid


54




a


are spaced apart from spout rim


24




c


and do not inhibit access to spout


22


such that all portions of lid


54




a


are spaced apart from imaginary geometric projection


100


, thereby enabling access to spout


22




a


by a user's mouth.




Closure


10




a


may be moved from the open position toward the closed position by urging lid


52




a


toward the closed position until snap boss


102




a


is freed or unsnaps from snap recess


104




a.


Lid


52




a


may be further manually moved toward the closed position about hinge


54




a


until plug


86




a


inserts and is fully seated into orifice


26




a.


Plug sealing surface


88




a


may form a seal with spout inside surface


24




a


(and other surfaces may make mutual contact, as described above) such that the closure


10




a


seals orifice


26




a


to reposition closure


10




a


in the closed position. Thus, closure


10




a


enables re-use of the combination of container


11


and closure


10




a.






Referring to

FIGS. 11 through 17

to illustrate a second embodiment of the present invention, reference numerals bearing a “b” designation are similar or analogous to like reference numerals bearing an “a” designation in

FIGS. 1 through 10

. Persons familiar with closure technology or plastic manufacturing and design principles will understand that many of the features shown in the second embodiment may be interchanged with features shown in the first embodiment, according to conventional design principles in light of the present disclosure.




According to a second embodiment of the invention, a closure


10




b


is removably coupled to a container


11


. Closure


10




b


includes a closure body


12




b


and a top coverl


4




b,


which preferably are independently formed of injection molded or compression molded conventional plastic. Closure


10




b


defines a longitudinal axis C that is disposed at the centerline of the closure, which is co-linear with the longitudinal axis of the container orifice.




Body


12




b


includes a top member


18


and a circular skirt


19




b


that preferably is integrally formed with top member


18


and depends downwardly therefrom, as best shown in

FIG. 12

,

FIG. 13

, and FIG.


14


. Top member


18


includes an inwardly extending top member flange


20




b,


a spout


22




b,


an orifice


26




b


(as also shown in FIG.


17


), and an upwardly extending ring


28


. Preferably, flange


20




b


is disk-like or annular, and substantially horizontal. Spout


22




b


may be disposed at the innermost portion of flange


20




b


and extend substantially vertically upwardly therefrom to form a cylinder, as shown in the FIG.


12


and FIG.


17


. The present invention also encompasses a frustum shape to form a cone (not shown in FIGS.


11


through


17


). Such a conical shape may be oriented either upward or downward.




As best shown in FIG.


14


and

FIG. 17

, spout


22




b


is formed by a spout wall


23




b,


which has an inside surface


24




d,


an outside surface


24




e,


and a top rim


24




f


disposed around the top edge of wall


23




b.


Preferably, wall


23




b


extends upwardly from top member flange


20




b,


although it may also extend downwardly therefrom, or both, according to the design parameters of the particular closure. The present invention encompasses orifices having oval and other shapes (not shown) that are not circular.




Wall


23




b


preferably is concentric with longitudinal centerline C to center orifice


26




b


in closure


10




b


and to align orifice


26




b


with the pour opening of container


11


, which is partially shown in phantom in FIG.


12


. Alternatively, spout


22




a


may have a thickness that varies along it height similar to that shown with respect to the first embodiment. In a preferred embodiment, spout


22




b


(that is, orifice


26




b


) has an inside diameter D


1


of approximately 0.906 inches.




Ring


28


extends substantially vertically upwardly from top member flange


20




b,


and preferably is concentric with and spaced apart from wall


23




b.


Ring


28


is also concentric with and spaced apart from the outer perimeter of skirt


19




b.


Ring


28


extends substantially perpendicular to flange


20




b,


and has an attachment feature, such as a bead


30


, formed at its top edge. Bead


30


may have a substantially circular cross section (as shown in the Figures), a rounded top with flat undersides (not shown), or other shapes that enhance assembly and discourage disassembly of ring


28


with a receiving recess


64


, which is explained below. Ring


28


and bead


30


are substantially continuous around the circumference of top member


18


.




Skirt


19




b


is substantially annular and generally cylindrical, and includes vertically oriented ribs


36




b


disposed on its outer surface to enhance gripping by a user. Ribs


36




b


are shown in FIG.


12


and

FIG. 14

, and omitted from

FIG. 11

,

FIG. 16

, and FIG.


17


. At least one thread


38




b


is disposed on its inner surface for mating to a corresponding thread


39




b


on the container


11


. Skirt


19




b


may be coupled to a tamper evident band


40




b


that includes a flange


41




b


and a frangible connection


42




b,


as described above with respect to the first embodiment.




Top cover


14




b


includes a base


48




b,


a tear band


50




b,


and a movable lid


52




b.


Preferably, these components of top cover


14




b


are formed from a single, continuous piece of plastic (as shown in the Figures), although the present invention encompasses forming top cover


14




b


in two or more pieces, forming all or portions of body


12




b


with top cover


14




b,


or forming portions of top cover


14




b


with body


12




b.


Top cover


14




b


forms at least three states or positions: a tamper—resistant position, a closed position, and an open position, as generally described above with respect to the first embodiment, and as described specifically herein.




Top cover


14




b


is disposed generally on top of body


12




b.


Base


48




b


is a ring that includes an outer wall


58


, and inner wall


60


, an upper portion


62


, and a recess


64


, as shown in FIG.


13


. Outer wall


58


is concentric with and spaced apart from inner wall


60


. Upper portion


62


is coupled between outer wall


58


and inner wall


60


to form a u-shape in cross section. Upper portion


62


may have a flat top surface, although other shapes may be employed according to aesthetic and functional considerations. An inner rim


66




b


is formed at the junction or the shared edge between upper portion


62


and inner wall


60


.




Preferably, recess


64


is formed on the underside of base


48




b


to constitute an attachment feature that cooperates with bead


30


. Specifically, recess


64


is annular and continuous around base


48




b


with a circular shape in cross section having an opening in its lower portion for receiving bead


30


. The opening in recess


64


may have a radial width that is smaller than the diameter (or radial dimension) of the bead


30


to securely fasten or snap top cover


14




b


to body


12




b,


thereby making disassembly of top cover


14




b


from body


12




b


difficult without providing evidence of tampering.




Tear band


50




b


preferably is curved around the longitudinal axis C of the closure, or may be offset therefrom. Tear band


50




b


has an outer frangible connection


72




b


and an inner frangible connection


74




b.


The body of tear band


50




b


extends inwardly and inclines obliquely upwardly from base


48




b.


Thus, tear band


50




b


may smoothly form a portion of a frustum. Between connections


72




b


and


74




b,


tear band


50




b


has a flat profile on its upper surface to provide a smooth appearance to the outer, upper side of top cover


14




b.






Outer connection


72




b


is formed between an outer edge of tear band


50




b


and inner rim


66




b


of base


48




b.


Inner connection


74




b


is formed between an outer edge of tear band


50




b


and the outer edge of lid


52




b.


Connections


72




b


and


74




b


are thin continuous membranes (relative to the thickness of tear band


50




b


) formed by weak or thin-walled portions of top cover


14




b


to enhance breaking when urged by a user. Like top cover


14




a


of the first embodiment, top cover


14




b


preferably is continuous over base


48




b,


connection


72




b,


tear band


50




b,


connection


74




b,


and lid


52




b,


except for a pair of slots


79




b


and


80




b


disposed near hinge


14




b,


which are described below. Thus, tear band connections


72




b


and


74




b


discourage liquids from passing through top cover


14




b.


The present invention encompasses connections


72




b


and


74




b


comprising slots inter-spaced between structural members (not shown), as described above.




Referring to

FIG. 11

, tear band


50




b


has a first end


77




b


and an opposing second end


78




b


that define the ends of each one of the connections


72




b


and


74




b.


Tear band


50




b


has an upwardly inclined protruding part at first end


77




b


that forms a tab


75




b


that may be gripped by a user to begin the process of detaching tear band


50




b.


Second end


78




b


may also have a tab (not shown). Tab


75




b


is an inclined portion of band


50




a


that has the same width as the tear band


50




a.


Tab


75




b


has a center that is substantially co-incident with the curved center of tear band


50




a.


Numerous configurations and geometries of tab


75




a


are encompassed by the present invention, as will be understood by persons familiar with plastic closure technology or with technology relating to detachable, plastic members such as tear bands.




Lid


52




b


includes a hinge


54




b,


a snap


56




b,


a cover


84




b,


and a plug


86




b.


Cover


84




b


has a top side that preferably is substantially planar and circular with a flattened side


91


proximate hinge


54




b.


The circular portion of cover


84




b


has a center that is coincident with centerline C, thereby centering top member


52




b


relative to orifice


26




b


and container


11


. The outer perimeter of cover


84




b


is beveled on its top side to smoothly yield to inner connection


74




b.






Flattened side


91


is defined by the chord formed by hinge


54




b,


and particularly by a first joint


96


and a panel


94


, which are described below. A finger grip


92


is formed by a cut-out portion of cover


84




b


on the side opposing flattened side


91


. Finger grip


92


may be formed by an undercut portion to provide a surface against which a user's finger may urge or pry to open closure


10




b.






Plug


86




b


depends downwardly from the underside of cover


84




b.


Plug


86




b


preferably is generally cylindrical. Alternatively, plug


86




b


may have other shapes (not shown) such as an elliptical shape, although the shapes of plug


86




b


and orifice


26




b


should match to facilitate sealing therebetween. An outer circumferential surface of plug


86




b


forms a sealing surface


88




b,


which has an outer diameter that matches the inner diameter of spout wall


23




b


such that a seal is formed therebetween upon insertion of plug


86




b


into orifice


26




b.






A circumferential bead


106


, as best shown in

FIG. 14

, or similar protrusion is formed on the upper, outside surface


24




e


of spout wall


23




b.


A corresponding circumferential recess


108


is formed on a lower, outside surface of plug


86




b


such that bead


106


is inserted into recess


108


, as shown for example in

FIG. 13

, upon plug


86




a


being fully seated into spout


22




b.


Bead


106


and recess


108


may provide an audible or sensible indication (that is, a snap) that plug


86




b


is fully seated, and may enhance sealing thereof. Wall inside surface


24




d


is otherwise shown as smooth in the Figures, although the present invention encompasses protrusions (such as steps, bosses, and the like, not shown) and other sealing surfaces that cooperate with a top cover extension or plug. Cover


84




b


preferably has an outer diameter larger than that of plug


86




b


to form a flange


90




b,


which extends around the circumference of plug


86




b.


Cover


84




b


may also have a cover skirt (not shown in the Figures illustrating the second embodiment) like that as described as skirt


87




a


with respect to the first embodiment.




Hinge


54




b


is disposed between tear band first end


77




b


and second end


78




b,


and hinge


54


preferably is separated from first ends


78




a


and


78




b


by slots


79




b


and


80




b,


respectively, as shown in FIG.


11


. Preferably, tear band


50




b


circumscribes the majority of the circumference of lid


52




b,


and hinge


54




b


and slots


79




b


and


80




b


circumscribe or are disposed radially outside of the remaining circumference of lid


52




b.






Hinge


54




b


includes a panel


94


, a first joint


96


, and second joint


98


. Tear band


50




b


has a radial dimension that is equal or substantially equal to a radial dimension of hinge panel


94


. Specifically, the outer radius of tear band


50




b,


measured from centerline C to outer connection


72




b,


is approximately equal to the radius of hinge


54




b,


measured from centerline C to the comer of hinge panel


64


where slot


79




b


or slot


80




b


meets first joint


96


(that is, the outermost joint).




As shown in FIG.


11


and

FIG. 15

, panel


94


is substantially flat and elongate (that is, is longer along its tangential axis than in a direction perpendicular to its tangential axis), and preferably is rectangular. The long sides of panel


94


, which are oriented along its tangential axis) yield to and form a portion of joints


96


and


98


. First joint


96


is formed between panel


94


and upper portion


62


of top cover base


48




b.


Upper portion


62


may have short chordal region


91


that extends to first joint


96


, as shown in FIG.


11


. Second joint


98


is formed between panel


94


and lid


52




b.


Joints


94


and


96


are formed by thin membrane—like portions of plastic (that is, thin relative to the thickness of base


48




b,


panel


94


, and cover


84




b


) that are flexible, thereby forming a living hinge. The present invention encompasses other hinge configurations.




Snap


56




b


is formed on top cover


14




b


to releasably secure top cover


14




b


while it is in a fully open position. Snap


56




b


includes a protrusion, such as a snap boss


102




b,


disposed on one of base


48




b


and either cover


84




b


or hinge panel


94


, and a mating recess, such as a snap recess


104




b,


disposed in the other of base


48




b


and either cover


84




b


or hinge panel


94




b.


As shown best in

FIG. 15

, snap boss


102




b


and recess


104




b


preferably are as generally described as with respect to the first embodiment. Lid


52




b


also includes crab claw seal


82




b


extending from the underside of cover


84




b,


similar to that described with respect to the first embodiment.




Preferably, orifice


26




b


has a diameter D


1


that has the same relationship with container neck inside diameter D


2


as described with respect to the first embodiment to provide beneficial pouring and drinking characteristics. Lid


52




b


is thus enabled to pivot such that movable cover


84




b,


plug


86




b,


and hinge


54




b


are spaced apart from orifice


26




b


and from the upper portions of closure


10




b


to enable a user's mouth to directly access orifice


26




b


by enabling the user's mouth to encircle or engage spout


22




b


and/or base


48




b.






The operation of closure


10




b


with respect to the tamper resistant position and the closed position are similar to the operation described with respect to the first embodiment. Specifically, to open closure


10




b


from the tamper resistant position that is shown in

FIG. 11

, a user may grasp tear band


50




b


at tab


75




b


and pull generally upward to detach tear band connections


72




b


and


74




b


around the circumference of cover


84




b.


Upon fully detaching tear band


50




b,


closure


10




b


is in the closed position, as shown in

FIG. 16. A

user may discard tear band


50




b,


and place a finger into or under finger grip


92


. Cover


84




b


may be urged upward opposite hinge


54




b


until plug


86




b


slides out from wall


23




b


and bead


106


disengages (that is, snaps above) from spout recess


108


to free lid


52




b.






Both first and second hinge joints


96


and


98


enable cover


84




b


to pivot about base


48




b


while lid


52




b


is urged farther from the closed position toward the fully open position. Thus, panel


94


pivots about first joint


96


relative to base


48




b


and cover


84




b


pivots about second joint


98


relative to hinge


84




b


to enable moving lid


52




b


away from orifice


26




b.


The simultaneous pivoting about the dual joints


96


and


98


provides clearance for plug


86




b


to clear spout wall


23




b.


Cover


84




b


and base


48




b,


by at least partially covering spout


22




b,


promote sanitary conditions as described above with respect to spout


22




a.






In the fully open position, shown in

FIG. 17

, hinge


54




b


is fully pivoted open such that hinge panel


94


is disposed well past a vertical position to a resting, nearly horizontal position. Hinge panel


94


has a radial width that is approximately equal to or larger than the radial width of base upper portion


62


. Thus, in the fully open position, at least a portion of second joint


98


lies outside of the outer periphery of base


48




b


and/or skirt


19




b.


For example, a center of second joint


98


may be substantially tangential to the outermost periphery of base


48




b.


Further, snap boss


102




b


snaps into snap recess


104




b.






Thus, cover


84




b


is pivotable to be spaced apart from orifice


26




b


and to be disposed completely outside of the periphery base


48




b


of closure


10




b,


thereby enabling access to spout


22




b


by a user's mouth. Specifically, it is preferred that all portions of cover


84




b


(that is, all parts of top cover


14




b


except hinge


54




b


) are disposed outside of a vertical, cylindrical geometric projection


100


(shown in FIG.


17


and analogously in

FIG. 3C

) of orifice


26




b.


Closure


10




b


may be re-positioned from the fully open position to the closed position by urging lid


52




b


toward the closed position (roughly counter-clockwise in

FIG. 17

) until snap boss


102




b


is freed from snap recess


104




b,


and until plug


86




b


inserts and is fully seated into orifice


26




b.






The present invention has been described with respect to a pair of embodiments, although the present invention is not limited to the embodiments described. Rather, the invention broadly encompasses other embodiments having other features and configurations consistent with the claims. For example, the closures described in the written description are circular (that is, substantially cylindrical), although the present invention encompasses elliptical closures and/or containers. The present invention is described with respect to liquid products, although the invention may also be employed with pastes, creams, granules, powders and similar flowable products. Further, modifications to the embodiment described herein will be apparent to persons familiar with closure technology, injection and compression molding technology, and related technologies in light of the present disclosure.



Claims
  • 1. A closure for a container for use with a flowable product, comprising:a closure body having a sidewall and a circumferential skirt downwardly depending from the sidewall, the sidewall defining an orifice for dispensing the product therethrough; and a top cover removably covering the orifice, including: a circumferential base coupled to the closure body, wherein the closure body includes an annular recess formed around an outer periphery thereof and the top cover base includes an annular protrusion that is insertable into the annular recess to secure the top cover to the closure body; a movable lid including a cover and a plug downwardly extending from the cover, the plug being removably insertable into the orifice to form a seal therewith, a detachable tear band removably coupling the lid to the base, and a hinge pivotally coupling the lid to the base, the tear band and the hinge disposed substantially around a perimeter of the cover; the closure having a tamper-resistant position in which the tear band couples the lid to the base to prevent actuation of the lid, a closed position in which the tear band is detached from the top cover and the plug is sealably disposed within the closure body orifice, and an open position in which the lid is spaced apart from the orifice via pivoting about the hinge to enable dispensing of the liquid product.
  • 2. The closure of claim 1 wherein the sidewall defines a spout.
  • 3. The closure of claim 2 wherein the hinge includes a non-living hinge member coupled between the base and the cover member, the non-living hinge member being substantially continuously flexible to enable movement of the lid between a first position corresponding to the closed position and a second position corresponding to the open position.
  • 4. The closure of claim 3 wherein the hinge includes an intermediate panel coupled between the non-living hinge member and the cover member, each one of the cover member, the base, and the intermediate panel being substantially rigid compared with the non-living hinge.
  • 5. The closure of claim 3 wherein the cover member is pivotable about the non-living hinge by at least 180 degrees between the closed position and the open position, thereby enabling the top cover to pivot relative to the closure body to the open position in which the top cover is disposed completely outside of a vertical geometric projection of the orifice.
  • 6. The closure of claim 5 wherein the cover member is pivotable about the non-living hinge by approximately 270 degrees, thereby enhancing access to the orifice to improve pour and drinking characteristics of the closure.
  • 7. The closure of claim 3 wherein the cover member is entirely disposed lower than an uppermost portion of the spout in the open position.
  • 8. The closure of claim 7 wherein the base is disposed lower than the uppermost portion of the spout in the open position, thereby enhancing a user's ability to drink directly from the closure.
  • 9. The closure of claim 2 wherein the lid is openable from the closed position by a user's finger without directly touching the spout, thereby promoting cleanliness of the spout.
  • 10. The closure of claim 1 wherein the hinge includes a hinge panel, a first joint pivotally coupled between the hinge panel and the base, and a second joint pivotally coupled between the hinge panel and the lid.
  • 11. The closure of claim 10 wherein the hinge has a radial dimension that is at least as large as a radial dimension of the base, thereby enabling the top cover to pivot relative to the closure body to the open position in which the top cover is disposed completely outside of a vertical geometric projection of the orifice.
  • 12. The closure of claim 10 wherein the hinge second joint is vertically higher than the hinge first joint to enable the top cover to pivot away from the orifice.
  • 13. The closure of claim 10 wherein the hinge panel is elongate.
  • 14. The closure of claim 10 wherein the first joint is a living hinge and the second joint is a living hinge.
  • 15. The closure of claim 1 wherein the closure includes a snap releasably securing the lid to the closure body when the closure is in the open position.
  • 16. The closure of claim 15 wherein the snap includes a protrusion on one of the lid and the base and a mating recess on the other of the lid and the base.
  • 17. The closure of claim 16 wherein the snap protrusion comprises a snap boss extending radially outwardly from the cover when the closure is in the closed position, and the mating recess is formed in a periphery of the base.
  • 18. The closure of claim 1 wherein each one of the closure body, the orifice, the plug, and the top cover base are substantially circular.
  • 19. The closure of claim 1 wherein the closure body further comprises a top member encircling the orifice and the sidewall defines a spout, the plug being substantially circular to mate with an inside surface of spout to form the seal therebetween.
  • 20. The closure of claim 19 wherein the spout is oriented substantially vertically and is substantially cylindrical, and the plug extends substantially vertically and is substantially cylindrical.
  • 21. The closure of claim 19 wherein the cover forms a peripheral flange diametrally larger than the plug, the spout having a circumferential top rim that contacts the flange in the tamper-resistant position and in the closed position.
  • 22. The closure of claim 1 wherein the tear band inclines obliquely upward from the base.
  • 23. The closure of claim 22 wherein the tear band is substantially frustum-shaped around most of the circumference of the lid.
  • 24. The closure of claim 22 wherein the tear band includes a tab for gripping by a user, whereby the closure is openable.
  • 25. The closure of claim 24 wherein the tear band has an outer edge that is frangibly connected to the base and an inner edge that is frangibly connected to the cover.
  • 26. The closure of claim 24 wherein the tab is a first tab and the tear band includes a second tab, the first tab and the second tab disposed on opposing ends of the tear band.
  • 27. The closure of claim 24 wherein the tear band has a radial dimension that is equal to a radial dimension of the hinge.
  • 28. The closure of claim 24 wherein the tear band tab protrudes above the cover to enhance gripping thereof.
  • 29. The closure of claim 1 further comprising a tamper evident band frangibly coupled to the skirt at a lowermost edge thereof.
  • 30. A closure for a container for use with a flowable product, comprising:a closure body having a sidewall and a circumferential skirt downwardly depending from the sidewall, the sidewall defining an orifice for dispensing the product therethrough; and a top cover removably covering the orifice, including: a circumferential base coupled to the closure body, a movable lid including a cover and a plug downwardly extending from the cover, the plug being removably insertable into the orifice to form a seal therewith, a detachable tear band removably coupling the lid to the base, and a hinge pivotally coupling the lid to the base, the tear band and the hinge disposed substantially around a perimeter of the cover; wherein the top cover base includes an inner vertical wall, an outer vertical wall that is concentric with the inner wall, and an upper portion that is coupled between the inner wall and the outer wall, the hinge being coupled to an inner rim formed by the inner wall and the upper portion; the closure having a tamper-resistant position in which the tear band couples the lid to the base to prevent actuation of the lid, a closed position in which the tear band is detached from the top cover and the plug is sealably disposed within the closure body orifice, and an open position in which the lid is spaced apart from the orifice via pivoting about the hinge to enable dispensing of the liquid product.
  • 31. The closure of claim 30 wherein the closure body has an upwardly extending ring lockably insertable between the inner wall and the outer wall of the top cover base to affix the top cover to the closure body.
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