U.S. patent application number 11/548129 was filed with the patent office on 2007-06-14 for container lid with closure member.
This patent application is currently assigned to SOLO CUP OPERATING CORPORATION. Invention is credited to Mohammed Maqsood Ahmed, Mark Gerald Anhalt, Rajendra Ranjitbhai Chauhan, Richard Matthew Chin, Brian Norman Clarke, John Stewart Gitschlag, William Edward Hurst, Dawn Ellen Huston, James Tam JR. Joines, David Raymond Langelan, Kevin Ray Smith, Stephen Alan Smith, Stephen William Sullivan, Warren Giles Wiedmeyer.
Application Number | 20070131692 11/548129 |
Document ID | / |
Family ID | 25449217 |
Filed Date | 2007-06-14 |
United States Patent
Application |
20070131692 |
Kind Code |
A1 |
Smith; Stephen Alan ; et
al. |
June 14, 2007 |
Container Lid With Closure Member
Abstract
A lid for a container holding a flowable substance has an
annular top wall. A side wall depends from the top wall, and has a
mounting portion for connecting the lid on the container. The top
wall has an opening that is adapted to permit the flow of the
substance through the lid. The top wall also has a retaining
member. The lid further has a closure member positioned on the
mounting portion. The closure member is movable between a first
position and a second position, wherein at least a portion of the
closure member is received in the opening in the first position and
at least a portion of the closure member is received in the
retaining member in the second position. The opening and the
closure member are cooperatively dimensioned such that the closure
member is removably inserted in the opening. The retaining member
and the closure member are cooperatively dimensioned such that the
closure member is removably inserted in the retaining member. The
closure member has a flexible connector arm which facilitates
movement of the closure member between the first and second
positions.
Inventors: |
Smith; Stephen Alan;
(Naperville, IL) ; Huston; Dawn Ellen;
(Lindenhurst, IL) ; Wiedmeyer; Warren Giles;
(Trevor, WI) ; Sullivan; Stephen William; (Round
Lake Beach, IL) ; Chin; Richard Matthew;
(Lincolnwood, IL) ; Ahmed; Mohammed Maqsood;
(Niles, IL) ; Gitschlag; John Stewart; (Chicago,
IL) ; Langelan; David Raymond; (Oak Park, IL)
; Chauhan; Rajendra Ranjitbhai; (Skokie, IL) ;
Hurst; William Edward; (Lisle, IL) ; Joines; James
Tam JR.; (Gurnee, IL) ; Smith; Kevin Ray;
(Round Lake Beach, IL) ; Anhalt; Mark Gerald;
(Franklin, WI) ; Clarke; Brian Norman; (St. Ives,
GB) |
Correspondence
Address: |
BANNER & WITCOFF, LTD.
TEN SOUTH WACKER DRIVE
SUITE 3000
CHICAGO
IL
60606
US
|
Assignee: |
SOLO CUP OPERATING
CORPORATION
|
Family ID: |
25449217 |
Appl. No.: |
11/548129 |
Filed: |
October 10, 2006 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
|
|
10641498 |
Aug 15, 2003 |
7134566 |
|
|
11548129 |
Oct 10, 2006 |
|
|
|
09923758 |
Aug 6, 2001 |
6679397 |
|
|
10641498 |
Aug 15, 2003 |
|
|
|
Current U.S.
Class: |
220/254.7 ;
220/375; 220/713; 220/780; 229/404; 229/906.1 |
Current CPC
Class: |
B65D 43/0212 20130101;
B65D 2543/00092 20130101; B65D 2543/00296 20130101; B65D 2543/00527
20130101; B65D 2543/00351 20130101; B65D 2543/00537 20130101; B65D
2543/00796 20130101; B65D 47/141 20130101; B65D 2543/00046
20130101; B65D 2543/00731 20130101 |
Class at
Publication: |
220/254.7 ;
220/375; 220/713; 229/404; 229/906.1; 220/780 |
International
Class: |
B65D 51/18 20060101
B65D051/18; B65D 55/16 20060101 B65D055/16; A47G 19/22 20060101
A47G019/22 |
Claims
1. A lid for a container holding a flowable substance, the lid
comprising: a body having a top wall, the top wall having an
opening, the top wall further having a retaining element wherein
the element is positioned approximately 180 degrees from the
opening, the body further having a side wall with a mounting
portion adapted to mount on the container; and, a closure member
affixed to the body, the closure member movable between a first
position wherein the closure member obstructs the opening, and a
second position wherein the closure member is received by the
retaining element.
2. The lid of claim 1, wherein the closure member includes a base
portion, a connector arm, and a plug, the connecting arm located
between the base portion and the plug, the base portion being
connected to the mounting portion.
3. The lid of claim 2, wherein the opening and the plug are
cooperatively dimensioned such that the plug is removably received
by the opening.
4. The lid of claim 2, wherein the retaining element is a recess,
the recess and the plug are cooperatively dimensioned such that the
plug is removably inserted in the recess.
5. The lid of claim 2, wherein the connector arm is flexible to
accommodate movement of the closure member between the first and
second positions.
6. The lid of claim 1, wherein the body has a recessed portion for
receiving a lip of a person drinking from the container.
7. The lid of claim 1, wherein movement of the closure member
between the first and second positions occurs along a curvilinear
path above the top wall.
8. The lid of claim 1, wherein the top wall has an annular
configuration.
9. A lid for a container holding a flowable substance, the lid
comprising: a body having a top wall, the top wall having an
opening, the top wall further having a retaining element wherein
the retaining element and the opening are in an opposed positional
relationship, the body further having a side wall with a mounting
portion adapted to mount on the container; and, a closure member
affixed to the body, the closure member movable between a first
position wherein at least a portion of the closure member obstructs
the opening, and a second position wherein at least a portion of
the closure member is received by the retaining element.
10. The lid of claim 9, wherein the closure member includes a base
portion, a connector arm, and a plug, the connecting arm located
between the base portion and the plug, the base portion being
connected to the mounting portion.
11. The lid of claim 10, wherein the opening and the plug are
cooperatively dimensioned such that the plug is removably received
by the opening.
12. The lid of claim 10, wherein the retaining element is a recess,
the recess and the plug are cooperatively dimensioned such that the
plug is removably received by the recess.
13. The lid of claim 10, wherein the connector arm is flexible to
accommodate movement of the closure member between the first and
second positions.
14. The lid of claim 9, wherein the body has a recessed portion for
receiving a lip of a person drinking from the container.
15. The lid of claim 9, wherein movement of the closure member
between the first and second positions occurs along a curvilinear
path above the top wall.
16. A lid for a container holding a flowable substance, the lid
comprising: a body having a top wall, the top wall having an
opening, the top wall further having a retaining element that is
positioned approximately 180 degrees from the opening, the body
further having a side wall with a mounting portion adapted to mount
on the container; and, a closure member affixed to the body between
the opening and the retaining element, the closure member movable
between a first position wherein at least a portion of the closure
member obstructs the opening, and a second position wherein at
least a portion of the closure member is received by the retaining
element.
17. The lid of claim 16, wherein the closure member includes a base
portion, a connector arm, and a plug, the connecting arm located
between the base portion and the plug, the base portion being
connected to the body between the opening and the retaining
element.
18. The lid of claim 17, wherein the opening and the plug are
cooperatively dimensioned such that the plug is removably received
by the opening in the first position.
19. The lid of claim 17, wherein the retaining element is a cavity,
the cavity and the plug are cooperatively dimensioned such that the
plug is removably received by the cavity in the second
position.
20. The lid of claim 17, wherein the connector arm is flexible to
accommodate movement of the closure member between the first and
second positions.
21. The lid of claim 16, wherein the body has a recessed portion
for receiving a lip of a person drinking from the container.
22. The lid of claim 16, wherein movement of the closure member
between the first and second positions occurs along a curvilinear
path above the top wall.
23. The lid of claim 16, wherein the top wall has an annular
configuration.
24. The lid of claim 16, wherein the body has a central portion
positioned radially inward of the top wall.
25. The lid of claim 24 wherein the closure member is affixed to
the central portion of the body.
26. The lid of claim 25 wherein the central portion has a recessed
configuration.
27. A lid for a container holding a flowable substance, the lid
comprising: a body having a top wall defining a generally circular
periphery, the top wall having both an opening and a retaining
element, wherein the opening and the retaining element are
positioned at opposite ends of a diameter passing through the
circular top wall, the body further having a side wall with a
mounting portion adapted to mount on the container; and, a closure
member affixed to the body, the closure member movable between a
first position wherein at least a portion of the closure member is
received by the opening, and a second position wherein at least a
portion of the closure member is received by the retaining
element.
28. The lid of claim 27 wherein, the closure member is affixed to
the body between the opening and the retaining element.
29. The lid of claim 28, wherein the closure member includes a base
portion, a connector arm, and a plug, the connecting arm located
between the base portion and the plug, the base portion being
connected to the body between the opening and the retaining
element.
30. The lid of claim 29, wherein the opening and the plug are
cooperatively dimensioned such that the plug is removably received
by the opening.
31. The lid of claim 29, wherein the retaining element is a cavity,
the cavity and the plug are cooperatively dimensioned such that the
plug is removably received by the cavity.
32. The lid of claim 29, wherein the connector arm is flexible to
accommodate movement of the closure member between the first and
second positions.
33. The lid of claim 28, wherein the body has a recessed portion
for receiving a lip of a person drinking from the container.
34. The lid of claim 28, wherein movement of the closure member
between the first and second positions occurs along a curvilinear
path above the top wall.
35. The lid of claim 28, wherein the top wall has an annular
configuration.
36. A lid for a container holding a flowable substance, the lid
comprising: a body having a top wall, the top wall having an
opening, the top wall further having a retaining element wherein
the retaining element and the opening are in an opposed positional
relationship, the body further having a side wall with a mounting
portion adapted to mount on the container; and, a closure member
detachably affixed to the body, the closure member movable between
a first position wherein at least a portion of the closure member
is received by the opening, and a second position wherein at least
a portion of the closure member is received by the retaining
member.
37. The lid of claim 36 wherein the closure member is detachably
affixed to the body between the opening and the retaining
element.
38. The lid of claim 37 wherein the top wall has an annular
configuration.
39. The lid of claim 38 wherein the body has a central portion
positioned radially inward of the top wall.
40. The lid of claim 39 wherein the closure member is detachably
affixed to the central portion of the body.
41. The lid of claim 37, wherein the closure member includes a base
portion, a connector arm, and a plug, the connecting arm located
between the base portion and the plug, the base portion being
connected to the body between the opening and the retaining
element.
42. The lid of claim 41, wherein the opening and the plug are
cooperatively dimensioned such that the plug is removably inserted
in the opening.
43. The lid of claim 41, wherein the retaining element is a cavity,
the cavity and the plug are cooperatively dimensioned such that the
plug is removably inserted in the cavity.
Description
CROSS-REFERENCE TO RELATED APPLICATIONS
[0001] This application is a continuation of co-pending U.S.
application Ser. No. 10/641,498, filed Aug. 15, 2003, which is a
continuation of prior U.S. application Ser. No. 09/923,758, filed
Aug. 6, 2001, now U.S. Pat. No. 6,679,397, issued Jan. 20,
2004.
FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT
[0002] Not Applicable.
TECHNICAL FIELD
[0003] The present invention relates to a lid for a container. More
specifically, the present invention relates to a lid for a flowable
substance container wherein the lid includes a closure member.
BACKGROUND OF THE INVENTION
[0004] Lids for containers are well-known in the beverage container
industry. In general terms, lids for single-use or disposable
containers have three main components: a top wall or surface, a
mounting portion, and an opening. Typically, the mounting portion
is adapted to engage an upper rim of the container to seal the lid
on the container. The opening is adapted to permit the flow of the
container contents through the lid.
[0005] Existing lid designs suffer from a number of problems
including untimely spillage through the opening due to the lack of
a reliable means for sealing the opening. The inability to
effectively seal the opening can also result in a significant loss
of heat from the container contents through the opening. To address
these and other problems, a number of lid designs include a cover
portion for the opening. However, most cover portions lack
structural integrity and can interfere with a user consuming the
container contents through the opening.
[0006] U.S. Pat. No. 4,738,373 to DeParales discloses a container
lid where the opening is formed after a hinged tear panel is
removed from an outer edge of the lid. Due to its hinged
construction, the tear panel can unexpectedly rotate back towards
the edge while a user is drinking from the container, thereby
interfering with the discharge of the container contents. In
addition, it is quite difficult to completely re-seal the opening
with the tear panel once it is initially removed from the edge of
the container.
[0007] Another example of a lid having an attached cover for the
opening is disclosed in U.S. Pat. No. 4,899,902 to DeMars. There, a
cover is placed over a spout extending upward from the lid. The lid
contains no structure to retain and/or secure the cover once it is
removed from the spout. Because the cover remains unsecured while
the user is drinking from the container, the cover can obstruct the
use of the lid. Accordingly, the effectiveness of the lid is
compromised.
[0008] Therefore, there is a definite need for a container lid with
a cover portion that effectively re-seals the opening therein. In
addition, there is a need for lid with a cover portion that can be
reliably secured such that the cover portion does not interfere
with the discharge of the container contents.
[0009] The present invention is provided to solve these and other
problems.
SUMMARY OF THE INVENTION
[0010] The present invention relates to a lid for a container
holding a flowable substance. The lid has an annular top wall and a
side wall depending from the top wall. The side wall has a mounting
portion for connecting the lid on the container. The lid includes
an opening in the top wall, the opening adapted to permit the flow
of the substance through the lid. A retaining member is positioned
in the top wall.
[0011] In accord with the invention, the lid includes a closure
member positioned on the mounting portion, the closure member
having a plug. In further accord with the invention, the closure
member is movable between a first position and a second position,
wherein at least a portion of the plug is received in the opening
in the first position and wherein at least a portion of the plug is
received in the retaining member in the second position.
[0012] In still further accord with the invention, the opening and
the plug are cooperatively dimensioned such that at least a portion
of the plug is removably inserted in the opening. Similarly, the
retaining member and the plug are cooperatively dimensioned such
that at least a portion of the plug is removably inserted in the
retaining member. The closure member is flexible thereby
facilitating movement of the closure member between the first and
second positions.
[0013] Other features and advantages of the invention will be
apparent from the following specification taken in conjunction with
the following drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
[0014] FIG. 1 is a perspective view of the lid of the present
invention, showing a closure member extending from the lid;
[0015] FIG. 2 is a partial end view of the closure member of the
lid of FIG. 1;
[0016] FIG. 3 is a partial cross-sectional view of a retaining
member of the lid of FIG. 1;
[0017] FIG. 4 is a partial cross-sectional view of the closure
member received by an opening of the lid of FIG. 1;
[0018] FIG. 5 is a partial cross-sectional view of the closure
member received by a retaining member of the lid of FIG. 1;
[0019] FIG. 6 is end view of the lid of FIG. 1, showing the path of
movement of the closure member between a first position and a
second position;
[0020] FIG. 7 is a perspective view of an alternate embodiment of
the lid of the present invention, showing a securing member
positioned between the lid and the closure member;
[0021] FIG. 8 is a perspective view of the lid of FIG. 1, showing
the closure member in the first position; and,
[0022] FIG. 9 is a perspective view of the lid of FIG. 1, showing
the closure member in the second position.
DETAILED DESCRIPTION OF THE INVENTION
[0023] While this invention is susceptible of embodiment in many
different forms, there is shown in the drawings and will herein be
described in detail preferred embodiments of the invention with the
understanding that the present disclosure is to be considered as an
exemplification of the principles of the invention and is not
intended to limit the broad aspect of the invention to the
embodiments illustrated.
[0024] A lid 10 for a container (not shown) of the present
invention is illustrated in FIG. 1. The container has a central
opening defining a volume that can be used to contain or hold a
flowable substance, for example a liquid or a powder. It is
understood that the container can assume a variety of different
forms and shapes.
[0025] The lid 10 includes a generally annular top wall 12 with a
top wall surface 14 and an outer peripheral edge 16. A generally
annular outer side wall 18 depends from top wall 12 at the
peripheral edge 16. The side wall 18 has a side wall surface 20 and
a lower edge 22. A mounting portion 24 depends from the side wall
18 at the lower edge 22. The mounting portion 24 includes a
generally annular flange 26 and a generally annular skirt 27. The
mounting portion 24 is adapted for connecting the lid 10 to the
container in a manner that seals the lid 10 on the container. Thus,
the mounting portion 24 prevents leakage of the container contents
between the lid 10 and the container when the lid 10 is positioned
on the container. In a preferred embodiment, the container contents
are a liquid and the mounting portion 24 is integral with the side
wall 18.
[0026] An aperture or drink opening 28 is preferably located in the
top wall surface 14. Alternatively, the opening 28 can be located
in a portion of the side wall 18. The opening 28 is adapted to
permit the passage or flow of the flowable substance held by the
container through the lid 10. The opening 28 has an edge 29 that
defines the shape of the opening 28. Although shown in FIG. 1 as
having an oval or obround shape, the opening 28 can have a variety
of shapes, including but not limited to circular, square, or
rectangular.
[0027] As further shown in FIG. 1, the lid 10 also has a closure
member 30. In a preferred embodiment, closure member 30 is
positioned on a portion of the annular skirt 27. The closure member
30 includes a first end 32, a second end 34, and an intermediate
portion 36. The first end 32 includes a base portion 38, which can
have various configurations, including the rounded edge shown in
FIG. 1. Preferably, the first end 32 extends from the skirt 27,
however, the first end 32 could depend from a portion of the top
wall 12, the side wall 18, or the mounting portion 24. The closure
member 30 is preferably formed from the same material of the lid
10.
[0028] The intermediate portion or arm 36 connects the first end 32
and second end 34. Preferably, the arm 36 is flexible and has a
curvilinear, arc shape that is similar to the curvilinear shape of
the mounting portion 24 and/or the top wall 12. The arc length of
the closure member 30, as measured from the first end 32 to the
second end 34, can vary according to numerous design parameters.
Preferably, the arc length ranges from one-fifth to one-half the
circumference of the top wall 12. In a most preferred embodiment,
the arc length is approximately 90 degrees. Described in another
manner, a vector drawn radially inward from each of ends 32, 34
would intersect to form an approximately 90 degree angle.
[0029] The second end 34 has a tab 39 and a plug 40. As shown in
FIG. 2, the plug 40 has a generally catenoid shape. The plug 40 has
an upper portion 42 and a lower portion 44, where the upper portion
42 has a nose 46. The plug 40 has opposed side walls 48 and opposed
end walls 49. Preferably, the walls 48, 49 are sloped. A notch 50
can be located between the upper portion 42 and the lower portion
44. The tab 39 is adapted to permit the movement of the closure
member 30 by a user grasping the tab 39.
[0030] As shown in FIG. 1, a retaining member 51 is preferably
located in the top wall 12. Alternatively, the retaining member 51
is located in a portion of the side wall 18 or a portion of the
mounting portion 24. The retaining member 51 includes a cavity 52
adapted to receive and/or secure the plug 40 of the closure member
30. The cavity 52 has an upper edge 54 defining the shape of the
cavity 52. Although shown in FIG. 1 as having an obround shape, the
cavity 28 can have a variety of shapes, including but not limited
to circular, square, or rectangular. Referring to FIG. 3, an inner
wall 56 depends from the upper edge 54 and terminates at a
generally planar bottom wall 58. Preferably the inner wall 56 is
sloped to facilitate engagement with the notch 50 and/or a portion
of the side and end walls 48, 49 during the insertion and/or the
removal of the plug 40. Because the retaining member 51 has a
bottom wall 58, the flowable substance in the container cannot flow
through the member 51. Furthermore, the retaining member 51 is
generally configured to receive at least a portion of the plug 40
in an interference fit as described in greater detail below.
[0031] At a first position P1, the opening 28 receives at least a
portion of the plug 40. As shown in FIGS. 4 and 8, when the plug 40
is located in the first position, the edge 29 of the opening 28 is
in frictional engagement with a portion of the walls 48, 49 of the
plug 40. In a preferred embodiment, at first position P1, the notch
50 is proximate the edge 29. Described in a different manner, the
plug 40 and the opening 28 are in an interference fit wherein at
least a portion of the upper portion 42 and the nose 46 are
positioned below the top wall 12. Alternatively, the plug 40 can be
further inserted into the opening 28 such that at least a portion
of the lower portion 44 is positioned below the top wall 12. When
the closure member 30 is in the first position P1, the plug 40
forms a seal with the opening 28. This seal prevents the flow of
the flowable substance in the container through the opening 28,
enabling the container and lid 10 to be moved without risking
spillage. Alternatively, the plug 40 and the opening 28 are in a
snap fit engagement, or interference engagement wherein each have
sufficient structure to enable such engagement. Other cooperating
structures can also be utilized.
[0032] At a second position, P2, the retaining member 51 receives
at least a portion of the plug 40. As shown in FIGS. 5 and 9, when
the plug 40 is located in the second position P2, the upper edge 54
of the cavity 52 and/or a portion of the side wall 56 is in
frictional engagement with the side walls 48 of the plug 40 and a
portion of the lower portion 44 is proximate the top wall surface
14. Described in a different manner, the plug 40 and the cavity 52
are in an interference fit wherein at least a portion of the upper
portion 42 and the nose 46 are positioned below the top wall 12.
Alternatively, the degree of insertion of the plug 40 is reduced
such that the notch 50 is proximate the edge 54. When the closure
member 30 is in the second position P2, the plug 40 is secured in
place thereby preventing unwanted movement of the closure member
30. This securement prevents the plug 40 and the closure member 30
from becoming dislodged while a user discharges the contents of the
container through the opening 28. Alternatively, the plug 40 and
the cavity 52 are in a snap fit engagement, or interference
engagement wherein each have sufficient structure to enable such
engagement. By retaining the plug 40 in the second position P2, the
closure member 30 does not interfere with a user discharging the
flowable contents through the opening 28.
[0033] Once the plug 40 is dislodged from the opening 28, the
closure member 30 is movable from the first position P1 to the
second position P2. Similarly, once the once the plug 40 is
dislodged from the retaining member 51, the closure member 30 is
movable from the second position P2 to the first position P1.
Referring to FIG. 6, when the closure member 30 moves between the
first position P1 and the second position P2, the plug 40 can
rotate along a curvilinear path, CP, above the top wall 12. Since
the closure member 30 rotates about the fixed base portion 38, the
rotation of the second end 34 and the plug 40 can be characterized
as planar, where the second end 34 and the plug 40 rotate in a
generally vertical plane. Described in a different manner, the
second end 34 and the plug 40 rotate in a plane that is generally
perpendicular to a horizontal plane defined by the top wall 12. A
living hinge is embodied within the closure member 30 which
facilitates the movement of the closure member 30 between the first
position P1 and second position P2. Preferably, the living hinge is
positioned proximal the first end 32.
[0034] At an alternate second position P2, the plug 40 is neither
received by the opening 28 nor the retaining member 51. Instead,
the plug 40 is positioned a distance from the mounting portion 24
as shown in FIG. 1. In the alternate second position P2, the
movement of the plug 40 is restricted only by the configuration and
structure of the closure member 30. However, a user can move the
plug 40 from the alternate second position P2 into engagement with
the opening 28. In the alternate second position P2, the closure
member 30 generally does not interfere with a user discharging the
flowable contents through the opening 28.
[0035] Alternatively, the retaining member 51 can include other
means to retain the closure member 30. For example, a pin can be
positioned on one of either the retaining member 51 or the closure
member 30. A socket adapted to receive the pin can be positioned on
the other of the retaining member 51 or the closure member 30. The
pin and socket are cooperatively dimensioned such that the pin is
received by the socket and as a result, the plug 40 is retained in
the retaining member 51. As another example, a portion of the
retaining member 51 has a plurality of teeth configured to
cooperatively engage a plurality of teeth located on a portion of
the closure member 30. The retaining member 51 and the closure
member 30 can be proximately positioned such that the teeth
intermesh or engage. In this manner, the plug 40 is retained by the
retaining member 51.
[0036] Unlike prior art designs, the dimensions and the
configuration of the opening 28 are not affected by either the
insertion of the plug 40 into the opening 28 or the removal of the
plug 40 from the opening 28. Similarly, the dimensions and the
configuration of the retaining member 51 are not affected by either
the insertion of the plug 40 into the opening 28 or the removal of
the plug 40 from the retaining member 51. As a result, the
dimensions and the configuration of both the opening 28 and the
retaining member 51 remain constant when the closure member 30
moves between the first position and the second position. This
attribute allows a user to repeatedly move the closure member 30
between the first position and second position. Accordingly, the
structural integrity and the durability of the lid 10 are
increased.
[0037] Referring to FIG. 1, the lid 10 includes a center portion 57
positioned radially inward of the top wall 12. An inner side wall
60 depends from an inner edge 61 of the top wall 12. A ridge 62 is
located at the base of the side wall 60 proximate the center
portion 57. The ridge 62 increases the structural rigidity of the
lid 10. Furthermore, the ridge 62 and the center portion 57
facilitate the stacking of multiple combinations of a lid 10 and a
container, meaning a first lid 10 connected to a first container
stacked on a second lid 10 connected to a second container. In this
configuration, the ridge 62 and the center portion 57 of the second
lid 10 act as a receiver and a locating feature to engage a lower
portion of the first container. Consequently, the first lid 10 and
the first container are stacked on the second lid 10 and the second
container in a stable and secure manner, which increases the
flexibility and marketability of the lid 10.
[0038] The center portion 57 includes a recessed portion 64 that is
adapted to receive a lip of a person drinking from the container.
The shape and configuration of the recessed portion 64 can be
varied to conform to numerous design parameters. The recessed
portion 64 can include a first wall 66 and a second wall 68 where
both walls are sloped causing the recessed portion 64 to have a
generally inclined surface. Due to the sloped walls 66, 68, the
height of the inner side wall 60 at the recessed portion 64 is
greater than the height of the inner side wall 60 at the center
portion 57.
[0039] As shown in FIG. 1, a vent hole 70 can be located in the
center portion 57 of the lid 10. Preferably, the vent hole 70 is
located in the center portion 57 proximate the ridge 62; however,
the vent hole 70 can be located in the top wall 12. The vent hole
70 is adapted to ensure the continuous flow of the container
contents through the opening 28 while venting the container.
[0040] A drain hole (not shown) can be located in the recessed
portion 64, preferably in the second wall 68 near the side wall 60
and in alignment with the drink opening 28. When the flowable
contents, i.e. liquid, accumulate in the recessed portion 64, the
drain hole 72 ensures the drainage of such contents into the
container.
[0041] The opening 28 can be formed with a range of dimensions. At
a minimum, the opening 28 should have dimensions sufficient to
permit the passage of the flowable substance held by the container
and receive the plug 40. The retaining member 51 can be formed with
a range of dimensions. At a minimum, the retaining member 51 should
have dimensions sufficient to receive and secure the plug 40.
[0042] The opening 28 can be located at various positions along the
top wall 12 depending upon design parameters. Similarly, the
retaining member 51 can be located at various positions along the
top wall 12. The opening 28 and the retaining member 51 can be
proximate each other, or spaced a distance apart. Preferably, the
opening 28 and the retaining member 51 are opposed on the top wall
12, meaning that they are positioned approximately 180 degrees
apart.
[0043] The closure member 30 can be positioned in a number of
locations between the opening 28 and the retaining member 51.
However, the first end 32 of the closure member 30 is preferably
positioned approximately 90 degrees from the opening 28. Described
in another manner, the first end 32 is positioned approximately 90
degrees from retaining member 51. Described in yet another manner,
the second end 34 is positioned approximately 180 degrees from the
opening 28.
[0044] Although shown as having a generally circular shape, the lid
10, including the mounting portion 24, the flange 26 and the skirt
28, can have numerous configurations. For example, the lid 10 could
have a rectangular, square, or oval shape. To ensure a leak-proof
seal with the container, the shape of the mounting portion 24
should match the shape of the upper edge of the container so a
cooperative sealing engagement can be achieved.
[0045] Alternatively, the mounting portion 24 could have a shape
similar to the upper edge of the container, yet dissimilar from the
shape of the side wall 18 and the top wall 12. For example, the
mounting portion 24 could have an annular shape consistent with the
container shape and the walls 12, 18 could have a non-annular
shape.
[0046] The lid 10 can be manufactured by a variety of manufacturing
processes, such as injection molding or a thermoforming operation,
preferably vacuum forming and/or pressure forming. The lid 10 is
preferably formed from plastic, however, other lightweight
materials can be used to form the lid 10. Preferably, the lid 10 is
formed from a one piece construction, meaning that the closure
member 30 is integrally formed with the lid 10. Alternatively, the
closure member 30 can be connected to the lid in a separate step of
the formation process.
[0047] After the thermoforming operation has been completed, the
drink opening 28, the vent hole 70 and the drain hole may be formed
in the lid 10. The drink opening 28, the vent hole 70 and the drain
hole can be formed with a punch and die. The vent hole 70 and drain
hole, which are generally smaller than the drink opening 28, may
each be formed by puncturing the lid 10 with a pointed tool.
[0048] In another preferred embodiment shown in FIG. 7, the lid 10
includes a securing tab 110 adapted to secure the closure member 30
to the lid 10. The securing tab 110 includes a first portion 112
attached proximate the second end 34 of the closure member 30, and
a second portion 114 attached to the skirt 27. A seam 116 can be
located between the first and second portions 112, 114. The
position, configuration and length of the securing tab 110 can vary
with the design parameters, including the configuration of the
closure member 30 and the mounting portion 24. The securing tab 110
can be positioned in various locations along the skirt 27. This
means that the securing tab 110 can be positioned proximate the
first end 32, proximate the second end 34, or at a location between
the first and second ends 32, 34. In addition, the securing tab 110
can be connected to a portion of the top wall 14, the side wall 18,
or the mounting portion 24.
[0049] The securing tab 110 is adapted to rupture along the seam
116 when a sufficient amount of force is applied to the tab 110.
Prior to being ruptured, the securing tab 110 fixes the closure
member 30 in a generally stable position such that a plurality of
lids 10 can be stacked in a vertical configuration. The ability to
vertically stack a plurality of lids 10 increases the marketability
and versatility of the lid 10 because less storage space is
required. After the securing tab 110 is ruptured, the closure
member 30 is adapted for movement between the first and second
positions P1, P2 about the fixed base portion 38.
[0050] Alternatively, the securing tab 110 can be adapted for
reattachment after rupture of the tab 110. For example, the first
portion 112 can have a plurality of teeth configured to
cooperatively engage a plurality of teeth on the second portion
114. After the securing tab 110 is ruptured, the first and second
portions 112, 114 can be proximately positioned such that the teeth
intermesh or engage. In this manner, the securing tab 110 is
reattached and the closure member 30 is fixed in a generally stable
position such that the closure member 30 does not interfere with a
user discharging the flowable contents through the lid 10.
[0051] In another preferred embodiment (not shown), the closure
member is formed without a base portion extending from the skirt.
In this configuration, there is no space between the skirt and the
closure member such that the closure member is proximate the skirt.
As a result, the closure member is directly connected to the skirt
along the entire length of the closure member. In this
configuration, the closure member cannot be moved between the first
and second positions P1, P2. Alternatively, the closure member is
connected to a portion of the top wall, the side wall, or the
mounting portion.
[0052] To detach the closure member, a seam is positioned between
the closure member and the skirt. The seam is frangible, meaning
that it is adapted to be torn or ruptured when a sufficient amount
of force is applied in the proper direction. A tear stop is located
along the seam and is adapted to halt the tearing or rupturing of
the seam. Preferably, the tear stop is located in a portion of the
first end of the closure member. Once an appropriate amount of
force is applied in the proper direction, the seam begins to
rupture and continues to rupture until the tear stop halts the
rupturing process. As a result, the closure member is detached from
the skirt and is no longer connected to the lid. Consequently, the
closure member can be moved between the first and second positions
P1, P2.
[0053] Another preferred embodiment is shown in FIG. 10. The lid
110 includes a generally annular top wall 112 with a top wall
surface 114 and an outer peripheral edge 116. A generally annular
outer side wall 118 depends from top wall 112 at the peripheral
edge 116. The side wall 118 has a side wall surface 120 and a lower
edge 122. A mounting portion 124 depends from the side wall 118 at
the lower edge 122. The mounting portion 124 includes a generally
annular flange 126 and a generally annular skirt 127.
[0054] A drink opening 128 is preferably located in the top wall
surface 114. The opening 128 has an edge 129 that defines the shape
of the opening 128. The opening 128 is adapted to permit the
passage or flow of the flowable substance held by the container
through the lid 110.
[0055] The lid 110 also has a closure member 130. Preferably, the
closure member 130 is positioned on a portion of the annular skirt
127. The closure member 130 includes a first end 132, a second end
134, and an intermediate portion 136. The first end 132 includes a
base portion 138. Preferably, the first end 132 extends from the
skirt 127, however, the first end 132 could depend from a portion
of the top wall 112, the side wall 118, or the mounting portion
124. The closure member 130 is preferably formed from the same
material of the lid 110. The closure member 130 is adapted to be
flexible. The second end 134 has a tab 139 and a plug 140. A notch
150 can be located between an upper portion and a lower portion of
the plug 140.
[0056] As shown in FIG. 10, a retaining member 151 is preferably
located in the top wall 112. Alternatively, the retaining member
151 is located in a portion of the side wall 118 or a portion of
the mounting portion 124. The retaining member 151 includes a
cavity 152 adapted to receive and/or secure the plug 140 of the
closure member 130. An inner wall depends from an upper edge (not
shown) of the member 151 and terminates at a generally planar
bottom wall. The retaining member 151 is generally configured to
receive at least a portion of the plug 140 in an interference fit
as described in greater detail below.
[0057] At a first position P1, the opening 128 receives at least a
portion of the plug 140. When the plug 140 is located in the first
position, the edge 129 of the opening 128 is in frictional
engagement with a portion of the plug 140. Described in a different
manner, the plug 140 and the opening 128 are in an interference fit
wherein at least a portion of the plug 140 is positioned below the
top wall 112. When the closure member 130 is in the first position
P1, the plug 140 forms a seal with the opening 128. This seal
prevents the flow of the flowable substance in the container
through the opening 128, enabling the container and lid 110 to be
moved without risking spillage.
[0058] At a second position, P2, the retaining member 151 receives
at least a portion of the plug 140. When the plug 140 is located in
the second position P2, a portion of the retaining member 151 is in
frictional engagement with a portion of the plug 140. Described in
a different manner, the plug 140 and the cavity 152 are in an
interference fit wherein at least a portion of the plug 140 are
positioned below the top wall 112. When the closure member 130 is
in the second position P2, the plug 140 is secured in place thereby
preventing unwanted movement of the closure member 130. This
securement prevents the plug 140 and the closure member 130 from
becoming dislodged while a user discharges the contents of the
container through the opening 128. By retaining the plug 140 in the
second position P2, the closure member 130 does not interfere with
a user discharging the flowable contents through the opening
128.
[0059] Once the plug 140 is dislodged from the opening 128, the
closure member 130 is movable from the first position P1 to the
second position P2. Similarly, once the once the plug 140 is
dislodged from the retaining member 151, the closure member 130 is
movable from the second position P2 to the first position P1.
[0060] The lid 110 includes a center portion 157 positioned
radially inward of the top wall 112. The center portion 157
includes a recessed portion 164 that is adapted to receive a lip of
a person drinking from the container. The shape and configuration
of the recessed portion 164 can be varied to conform to numerous
design parameters.
[0061] Referring to FIG. 10, the opening 128 and the retaining
member 151 are opposed on the top wall 112, meaning that they are
positioned approximately 180 degrees apart. In addition, the
closure member 130 is positioned near the retaining member 151.
Specifically, the first end 132 extends from a portion of the lid
110 proximate the retaining member 151. In this configuration, the
closure member 130 is easily moved between the first and second
positions P1, P2. It is understood that the positions of the
opening 128 and the retaining member 151 can vary according to the
design parameters. The specific location of the closure member 130
on the skirt 127 may also vary with the design parameters.
[0062] FIG. 11 discloses another preferred embodiment of the lid of
the present invention. As shown in FIG. 11, the lid 210 generally
includes an annular top wall 214 and a side wall 216 depending from
an outer or peripheral edge 218 of the top wall 214. Although the
top wall 214 is shown as having a generally flat upper surface
214a, the upper surface 214a can be curved or angled. The side wall
216 has a side wall surface 216a and a lower edge 220. The side
wall surface 216a can be curved, angled, or generally flat. The
overall shape of the lid 210 is generally frustaconical, however,
the lid 210 can have a number of other configurations.
[0063] A mounting portion 222 depends from the lower edge 220 of
the side wall 218. The mounting portion 222 includes a generally
annular flange 224 and a generally annular skirt 226. The mounting
portion 222 is adapted for connecting the lid 210 to the container
in a manner that seals the lid 210 on the container. Thus, the
mounting portion 222 prevents leakage of the container contents
between the lid 210 and the container when the lid 210 is
positioned on the container. In a preferred embodiment, the
mounting portion 222 is integral with the side wall 216.
[0064] An aperture or drink opening 228 is located preferably in
the top wall 216. Alternatively, the drink opening 228 is located
in the side wall 216. The opening 228 is adapted to permit the
passage or flow of the flowable contents held by the container
through the cover 212. The opening 228 has an edge 229 that defines
the shape of the opening 228. Although shown in FIG. 11 as having
an obround shape, the opening 228 can have a variety of shapes,
including but not limited to circular, square, or rectangular.
[0065] The opening 228 can be formed with a range of dimensions. At
a minimum, the opening 228 should have dimensions sufficient to
permit the passage of the flowable substance held by the container.
The opening 228 can be located at various positions along the top
wall 214 depending upon design parameters.
[0066] As shown in FIG. 11, a center portion 236 is positioned
radially inward from an inner edge 238 of the top wall 214.
Preferably, the center portion 236 is recessed such that the center
portion 236 has a curvilinear configuration when viewed in
cross-section. Described in a different manner, the center portion
236 has a concave shape when the portion 236 is viewed from a point
above the lid 210. The degree of recess or curvature of the center
portion 236 can vary with the design parameters of the lid 210.
[0067] The side wall 216 has a recessed portion 240 that is adapted
to receive a lip of a person drinking from the container. An edge
242 of recessed portion 240 defines the configuration of the
portion 240. The recessed portion 240 and the recessed surface 240a
are positioned radially inward from the side wall surface 216a.
Although the recessed portion 240 is shown positioned on both the
top wall 214 and the side wall 216, the recessed portion 240 can be
limited to either the top wall 214 or the side wall 216. The shape
and configuration of the recessed portion 240 can be varied to
conform to numerous design parameters. Similarly, the degree of
recess of the portion 240 can vary. Preferably, the recessed
portion 240 is positioned about the drink opening 228. The top wall
214 and the side wall 216 cooperate to form a rounded edge 240b at
the recessed portion 240.
[0068] The lid 210 also has a closure member 230. Preferably, the
closure member 230 is positioned on a portion of the annular skirt
226. The closure member 230 includes a first end 232, a second end
234, and an intermediate portion 236. The first end 232 includes a
base portion 238. Preferably, the first end 232 extends from the
skirt 226, however, the first end 232 could depend from a portion
of the top wall 212, the side wall 218, or the mounting portion
224. The closure member 230 is preferably formed from the same
material of the lid 210. The closure member 230 is adapted to be
flexible. The second end 234 has a tab 239 and a plug 240. A notch
250 can be located between an upper portion and a lower portion of
the plug 240.
[0069] As shown in FIG. 11, a retaining member 251 is preferably
located in the top wall 212. Alternatively, the retaining member
251 is located in a portion of the side wall 216 or a portion of
the mounting portion 222. The retaining member 251 includes a
cavity 252 adapted to receive and/or secure the plug 240 of the
closure member 230. An inner wall depends from an upper edge (not
shown) of the member 251 and terminates at a generally planar
bottom wall. The retaining member 251 is generally configured to
receive at least a portion of the plug 240 in an interference fit
as described in greater detail below.
[0070] At a first position P1, the opening 228 receives at least a
portion of the plug 240. When the plug 240 is located in the first
position, the edge 229 of the opening 228 is in frictional
engagement with a portion of the plug 240. Described in a different
manner, the plug 240 and the opening 228 are in an interference fit
wherein at least a portion of the plug 240 is positioned below the
top wall 212. When the closure member 230 is in the first position
P1, the plug 240 forms a seal with the opening 228. This seal
prevents the flow of the flowable substance in the container
through the opening 228, enabling the container and lid 210 to be
moved without risking spillage.
[0071] At a second position, P2, the retaining member 251 receives
at least a portion of the plug 240. When the plug 240 is located in
the second position P2, a portion of the retaining member 251 is in
frictional engagement with a portion of the plug 240. Described in
a different manner, the plug 240 and the cavity 252 are in an
interference fit wherein at least a portion of the plug 240 are
positioned below the top wall 212. When the closure member 230 is
in the second position P2, the plug 240 is secured in place thereby
preventing unwanted movement of the closure member 230. This
securement prevents the plug 240 and the closure member 230 from
becoming dislodged while a user discharges the contents of the
container through the opening 228. By retaining the plug 240 in the
second position P2, the closure member 230 does not interfere with
a user discharging the flowable contents through the opening
228.
[0072] Referring to FIG. 11, the opening 228 and the retaining
member 251 are opposed on the top wall 214, meaning that they are
positioned approximately 180 degrees apart. In addition, the
closure member 230 is positioned near the retaining member 251.
Specifically, the first end 232 extends from a portion of the lid
210 proximate the retaining member 251. In this configuration, the
closure member 230 is easily moved between the first and second
positions P1, P2. Unlike prior art designs, the dimensions and the
configuration of the opening 228 are not affected by the engagement
and disengagement of the plug 240 as the closure member 230 is
moved between the first and second positions P1, P2. This attribute
allows a user to repeatedly move the closure member 230 between the
first position P1 and the second position P2.
[0073] The lid 210 has a generally thin-wall construction. Although
shown as having a generally circular shape, the lid 210, including
the mounting portion 222, can have numerous configurations. For
example, the lid 210 could have a rectangular, square, or oval
shape. To ensure a leak-proof seal with the container, the shape of
the mounting portion 222 should match the shape of the upper edge
of the container so a cooperative sealing engagement can be
achieved.
[0074] FIG. 12 discloses another preferred embodiment of the lid of
the present invention. As shown in FIG. 12, the lid 310 is similar
to the lid 210 shown in FIG. 11. However, the closure member 330
originates from a position between the opening 328 and the
retaining member 351. Specifically, the first end 332 of the
closure member 330 is positioned approximately 90 degrees from the
opening 328. Described in another manner, the first end 332 is
positioned approximately 90 degrees from retaining member 351.
Described in yet another manner, the second end 334 is positioned
approximately 180 degrees from the opening 328.
[0075] In addition, the closure member 330 has a curvilinear, arc
shape that is similar to the curvilinear shape of the mounting
portion 324 and/or the top wall 312. The arc length of the closure
member 330, as measured from the first end 332 to the second end
334, can vary according to numerous design parameters. Preferably,
the arc length ranges from one-fifth to one-half the circumference
of the top wall 312. In a most preferred embodiment, the arc length
is approximately 90 degrees. Described in another manner, a vector
drawn radially inward from each of ends 332, 334 would intersect to
form an approximately 90 degree angle. The closure member 330 can
be moved between a first position and a second position as
described above.
[0076] While the specific embodiments have been illustrated and
described, numerous modifications come to mind without
significantly departing from the spirit of the invention and the
scope of protection is only limited by the scope of the
accompanying Claims.
* * * * *