Information
-
Patent Grant
-
6419101
-
Patent Number
6,419,101
-
Date Filed
Tuesday, September 14, 199925 years ago
-
Date Issued
Tuesday, July 16, 200222 years ago
-
Inventors
-
Original Assignees
-
Examiners
- Shoap; Allan N.
- Eloshway; Niki M.
Agents
-
CPC
-
US Classifications
Field of Search
US
- 215 253
- 215 254
- 215 256
- 215 258
- 215 211
- 215 235
- 215 237
- 215 244
- 215 305
- 215 317
- 215 320
- 215 321
- 215 329
- 215 341
- 215 901
- 220 254
- 220 265
- 220 266
- 220 268
- 220 276
- 220 288
- 220 810
- 220 839
- 220 831832
- 222 107
- 222 92
- 222 5415
- 222 5416
- 222 5419
- 222 567
- 222 568
- 222 569
-
International Classifications
-
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.
US Referenced Citations (19)