Patent Publication Number: US-2006000832-A1

Title: Reclosable container lid

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS  
      This is a continuation application of co-pending U.S. patent application Ser. No. 10/447,085, filed May 28, 2003, which is a continuation of U.S. patent application Ser. No. 09/923,763, filed Aug. 6, 2001, issued as U.S. Pat. No. 6,732,875 on May 11, 2004, which applications are incorporated by reference and made a part hereof. 
    
    
     FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT  
      Not applicable.  
     TECHNICAL FIELD  
      The present invention relates to a lid for a flowable substance container. More specifically, the present invention relates to a reclosable lid for use with a drink container.  
     BACKGROUND OF THE INVENTION  
      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.  
      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 movable cover portion for the opening. However, most existing movable covers lack structural integrity and as a result, do not effectively seal the opening. Also, a number of movable covers are difficult to operate due to their complex design. In addition, a vast majority of movable covers interfere with a user consuming the container contents through the opening.  
      U.S. Pat. No. 4,579,245 to Narushko provides an example of a container lid with a movable closing flap. The lid has a raised segment that forms a channel, which is adapted to receive the closing flap. The closing flap is a curved piece that must be inserted into the channel. The closing flap is movable between an open position and a closed position. Because the movement of the closing flap is controlled by a series of notches, grooves, tabs and handles located on the channel and the closing flap, the closing flap is difficult to operate and the effectiveness of the lid is compromised.  
      Another example of a lid having a movable cover for the opening is disclosed in U.S. Pat. No. 4,790,444 to Terzi. There, the hood or lid has an opening formed from a depending spout that is inserted into the container opening. The cover has exterior dimensions equivalent to the lid and is placed over the lid. The cover has an opening that must be aligned with the spout and the lid opening to form the drink passageway. The cover has a plurality of sockets, which when properly aligned, seal the lid opening. The cover is supported on the lid by a series of intricate structures and an annular gasket. Due to its complex array of structures, the lid and cover are difficult to assemble and operate. Furthermore, the array of structures can inhibit the alignment of the lid opening and the cover opening negatively affecting the formation of the drink passageway.  
      Therefore, there is a definite need for a reclosable container lid that reliably seals the opening. In addition, there is a need for such a lid that is easy to operate and does not interfere with a user consuming the container contents through the opening.  
      The present invention is provided to solve these and other problems.  
     SUMMARY OF THE INVENTION  
      The present invention relates to a reclosable lid for use with a flowable substance container. The lid has a first piece or cover, and a reclosable second piece or disk. The cover has a 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 cover includes an opening in the top wall, the opening adapted to permit the flow of the substance through the lid. The cover further includes a slot located in the top wall and a recessed portion located in both the top wall and the side wall.  
      The disk has at least one aperture, a post, and a projection. The aperture and the projection are each cooperatively dimensioned with the opening. The aperture is adapted to form a passageway when aligned with the opening. The post is adapted to be received by the slot in the cover. The disk is movable between a first and second position, wherein at least a portion of the projection is received in the opening in the first position and the wherein the aperture is aligned with the opening in the second position. The disk has at least one well adapted to facilitate stacking the lids in a vertical configuration.  
      The cover includes at least one support member having a cavity extending radially inward from the side wall. The cavity of the support member forms a support ledge on an inner surface of the cover that is adapted to provide rotatable support to the disk. The disk is further supported by an internal edge that is formed on the inner surface by the recessed portion, which extends radially inward from the side wall.  
      The disk is movable between the first and second positions by a user engaging and actuating the post. While the disk is moved between the first and second positions, the disk is rotatably supported by the support ledge and the support edge.  
      In another preferred embodiment of the invention, the lid includes a cover and an overlay. The cover has a 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. The lid further includes a recessed portion located in both the top wall and the side wall.  
      The overlay has a top wall and a side wall depending from the top wall. The side wall has a mounting portion adapted to connect the overlay to the cover. Also, the overlay has a projection in the top wall and at least one aperture. In addition, the overlay has at least one gripping element adapted to facilitate rotational movement of the overlay.  
      The overlay and the disk are cooperatively dimensioned such that they are in rotational engagement when the overlay is positioned on the disk. The overlay is movable between a first position and a second position, wherein a portion of the projection is received in the opening in the first position and wherein the aperture is aligned with the opening in the overlay in the second position.  
      The overlay is movable between the first and second positions by a user engaging either the overlay or the gripping element. While the overlay is moved between the first and second positions, the overlay is rotatably supported by the engagement of the mounting portion of the cover and the mounting portion of the overlay.  
      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  
       FIG. 1  is a perspective view of a reclosable lid of the present invention, showing a cover;  
       FIG. 2  is an end view of the cover of  FIG. 1 ;  
       FIG. 3  is a perspective view of an interior cavity of the cover of  FIG. 1 ;  
       FIG. 4  is a perspective view of a movable disk of the lid of  FIG. 1 ;  
       FIG. 5  is a perspective view of an alternate embodiment of a lid of the present invention, showing the lid in an open position;  
       FIG. 6  is a perspective view of a cover of the lid of  FIG. 5 ;  
       FIG. 7  is a perspective view of an overlay of the lid of  FIG. 5 ; and,  
       FIG. 8  is a perspective view of the lid of  FIG. 5 , showing the lid in a closed position. 
    
    
     DETAILED DESCRIPTION  
      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.  
      A reclosable 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 hold or contain a flowable substance, for example a liquid or a powder. The container and the lid  10  can be of either the disposable or extended use variety.  FIG. 1  shows the lid  10  in the closed position wherein the lid  10  is sealed such that the flowable substance cannot flow through the lid  10 . The lid  10  generally has a first piece or cover  12 , and a movable second piece or disk  50  (positioned underneath cover  12  in  FIG. 1 ).  
      The cover  12  of the lid  10  is adapted to span the opening in the upper portion of the container that is generally defined by an upper rim or edge of the container. For illustrative purposes, the container could be a coffee cup having an opening defined by the rim of the cup.  
      The cover  12  has an annular top wall  14  and a side wall  16  depending from a peripheral edge  18  of the top wall  14 . Although the top wall  14  is shown as having a generally flat upper surface  14   a , the upper surface  14   a  can be curved or angled. The side wall  16  has a side wall surface  16   a  and a lower edge  20 . The side wall surface  16   a  can be curved or generally flat. The overall shape of the cover  12  is generally frustaconical, however, the cover  12  can have a number of other configurations.  
      A mounting portion  22  depends from the lower edge  20  of the side wall  16 . The mounting portion  22  includes a generally annular flange  24  and a generally annular skirt  26 . The mounting portion  22  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  22  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 mounting portion  22  is integral with the side wall  16 .  
      An aperture or drink opening  28  is located preferably in the top wall  14 . Alternatively, the drink opening is located in the side wall  16 . The opening  28  is adapted to permit the passage or flow of the flowable contents held by the container through the cover  12 . The opening  28  has an edge  29  that defines the shape of the opening  28 . Although shown in  FIG. 1  as having an obround shape, the opening  28  can have a variety of shapes, including but not limited to circular, square, or rectangular. In the closed lid position shown in  FIG. 1 , at least a portion of a projection  52  of the disk  50  is received by or positioned in the opening  28 . Alternatively, the disk  50  has a generally planar surface that is aligned with a surface of the cover  12  proximate the opening  28  in a surface-to-surface engagement such that the opening  28  is sealed. These aspects will be described below in greater detail.  
      A slot or channel  30  is located preferably in the top wall  14 . The slot  30  has an edge  32  that defines the shape of the slot  30 . Although shown in  FIG. 1  as having an obround shape, the slot  30  can have a variety of shapes, including but not limited to circular, square, or rectangular. A post  54  extends from the movable disk  50 . The slot  30  is adapted to receive at least a portion of the post  54  extending through at least a portion of the slot  30 . Described in a different manner, at least a portion of the post  54  extends past the top wall surface  14   a . This aspect will also be described below in greater detail.  
      Referring to  FIGS. 1 and 2 , the cover  12  further comprises at least one support member  34 . The support member  34  has a peripheral edge  44  that defines the shape of the support member  34 . The peripheral edge  44  has an upper edge  44   a  and a lower edge  44   b . The peripheral edge  44  can have a variety of shapes, including the linear shape of the upper edge  44   a  and the serrated shape of the lower edge  44   b . A cavity  46  is recessed from the peripheral edge  44 . Described in a different manner, the cavity  46  extends radially inward from the peripheral edge  44 . As a result, at least a portion of the support member  34  extends radially inward past an inner surface of the side wall  16 . The dimensions and configurations of the support member  34  and the cavity  46  can vary with design parameters, including but not limited to the overall size of the cover  12  and/or the size of the movable second piece  50 . The position of the support member  34  can also vary along the height of the side wall  16 . For example, the support member  34  can be positioned proximate the peripheral edge  18 , or the support member  34  can be positioned closer to the mounting portion  22 .  
       FIG. 3  shows an interior cavity of the lid  12 . At least one internal support ledge  102  is positioned on an internal surface  100  of the cover  12 . The support ledge  102  is formed from the material defining the cavity  46  of the support member  34  which extends radially inward from the side wall  16 . Accordingly, the material that forms the cavity  46  also forms the internal support ledge  102 . The support ledge  102  has an upper edge  102   a . Although shown having an elongated configuration, the dimensions and configurations of the support ledge  102  can vary depending upon the configuration of the support member  34  and the degree to which the support member  34  extends radially inward. The role of the support ledge  102  is fully described below.  
      As shown in  FIG. 1 , a center portion  36  is positioned radially inward from an inner edge  38  of the top wall  14 . Preferably, the center portion  36  is recessed such that the center portion  36  has a curvilinear configuration when viewed in cross-section. The degree of recess or curvature of the center portion  36  can vary with the design parameters of the lid  10 . Alternatively, the center portion  36  is in planar alignment with the top wall  14 . In this configuration, the center portion  36  is not recessed.  
      Referring to  FIGS. 1 and 2 , the side wall  16  has a recessed portion  40 , that is adapted to receive a lip of a person drinking from the container. An edge  42  of recessed portion  40  defines the configuration of the portion  40 . In a preferred embodiment, the edge  42  has a generally straight base portion  43  that connects with a generally outwardly curved end segment  45  at each end. The recessed portion  40  is positioned radially inward from the side wall surface  16   a . Although the recessed portion  40  is shown positioned on both the top wall  14  and the side wall  16 , the recessed portion  40  can be limited to either the top wall  14  or the side wall  16 . The shape and configuration of the recessed portion  40  can be varied to conform to numerous design parameters. Similarly, the degree of recess of the portion  40  can vary. For example, as shown in  FIG. 1 , the recessed portion  40  is deeper at base portion  43  and shallower at an end proximate the drink opening  28 . Preferably, the recessed portion  40  is positioned about the drink opening  28 . The top wall  14  and the side wall  16  cooperate to form a rounded edge  40   b  at the recessed portion  40 .  
      Referring to  FIG. 3 , an internal support edge  104  is positioned in the internal surface  100  of the cover  12 . The internal support edge  104  is formed from the material defining the recessed portion  40  which extends radially inward from the side wall  16 . Accordingly, a portion of the material that forms the recessed portion  40  also forms the internal support edge  104 . Preferably, the support edge  104  is positioned internal to and coincident with the rounded edge  40   b  of the recessed portion  40 . The dimensions and configurations of the support edge  104  can vary depending upon the configuration of the recessed portion  40  and the degree to which the recessed portion  40  extends radially inward. The role of the support edge  104  is fully described below.  
       FIG. 4  shows the second piece or disk  50 . The disk  50  has an outer edge  51  and a top wall  56  with a top wall surface  56   a . The top wall  56  has an outer shoulder  58  and an inner shoulder  60 . A side wall  59  depends from the outer shoulder  58 . A center portion  62  extends radially inward from the inner shoulder  60 . The center portion  62  comprises an annular side wall  64  and an inner portion  66 . Preferably, the center portion  62  is recessed such that the center portion  62  has a curvilinear configuration when viewed in cross-section. The degree of recess or curvature of the center portion  62  can vary with the design parameters of the lid  10 . Preferably, the degree of recess of the center portion  62  of the disk  50  is similar to the degree of recess of the center portion  36  of the cover  12 . Alternatively, the inner portion  66  can be removed from the center portion  62  to reduce the weight and/or cost of the disk  50 . In this configuration, the disk  50  has a ring-shaped configuration.  
      The projection  52  extends from a portion of the top wall  56 . The projection  52  has a peripheral edge  68  that defines the shape of the projection  52 . Preferably, the projection  52  is cooperatively dimensioned with the drink opening  28  such that at least a portion of the projection  52  is adapted to be received by or positioned in the opening  28 . The projection  52  has a projection surface  52   a  that is preferably sloped or angled to facilitate reception of the projection  52  by the opening  28 . When the projection  52  is completely received in the opening  28 , the opening  28  is sealed and the lid  10  is in the closed position shown in  FIG. 1 . In the closed position, a top portion  70  of the projection  52  extends past the recessed portion surface  40   a.    
      The post  54  extends from a portion of the top wall  56 . As shown in  FIG. 3 , the post  54  has opposed end walls  72 , opposed side walls  74 , and a top wall  76 . The post  54  can have either a solid or hollow construction depending upon design parameters. At least a portion of the post  54  is received by the slot  30  and extends past the top wall surface  14   a . Although the configuration and dimensions of the post  54  can vary according to design parameters of the lid  10 , the post  54  must retain a configuration that permits it to be received by the slot  30 . As shown in  FIG. 4 , the post  54  has a catenoid shape. The post  54  can have a gripping portion (not shown) that is adapted to facilitate the engagement of a user&#39;s fingers with the post  54 . The gripping portion can be integral to the post  54  or it can be a separate element fastened to a portion of the post  54 . For example, the gripping portion can be a plastic or rubber element fastened to the walls  72 ,  74 .  
      As shown in  FIG. 4 , the disk  50  has at least one aperture  78 . The aperture  78  has a peripheral edge  80  that defines the shape of the aperture  78 . When the aperture  78  is aligned with the drink opening  28 , a passageway is formed between the disk  50  and the cover  12  permitting the passage or flow of the flowable substance held by the container through the lid  10 . Although the aperture  78  can have a variety of configurations and dimensions, the aperture  78  is preferably cooperatively dimensioned with the drink opening  28 . In a preferred embodiment, the aperture  78  is positioned within the disk  50  recessed portion  84  and spaced a distance from the projection  52 . In another preferred embodiment, the disk  50  includes two separate apertures  78 .  
      The disk recessed portion  84  is preferably positioned about the projection  52  and the aperture  78 . The degree of recess of the portion  84  can vary. An edge  86  of recessed portion  84  defines the configuration of the recessed portion  84 . Although the recessed portion  84  is shown positioned on a portion of both the disk side wall  59  and the disk top wall  56 , the recessed portion  84  can be limited to either the side wall  59  or the top wall  56 . The recessed portion  84  is adapted to be received by an inner surface of the recessed portion  40  of the cover  12  when the disk  50  is positioned proximate the cover  12 . Accordingly, the shape and configuration of the recessed portion  84  of the disk  50  is similar to the shape and configuration recessed portion  40  of the cover  12 . The top wall  56  and the side wall  59  cooperate to form a rounded edge  84   b  at the recessed portion  84 .  
      As further shown in  FIG. 4 , the disk  50  has at least one well  90  depending from a portion of the disk  50 . The disk  50  has a first well  90   a  and a second well  90   b  in one preferred embodiment. The well  90  can depend from either the top wall  56  or the side wall  59 , or therebetween. The well  90  has an outer edge  92  that defines the general shape of the well  90 . A shoulder  94  depends from the outer edge  92 . The shoulder  94  can have a curvilinear portion  94   a  and a generally linear portion  94   b . An inner wall  96  depends from the shoulder  94 . As shown in  FIG. 4 , the inner wall  96  has a generally annular configuration resulting in a generally tubular well configuration. However, the well  90  can have a variety of configurations depending upon design parameters. Preferably, the well  90  has a bottom wall (not shown). Alternatively, the bottom wall is omitted, causing the well  90  to have a hollow, tubular configuration.  
      The first and second wells  90   a ,  90   b  can be positioned at various locations in the disk  50 . Preferably, the first and second wells  90   a ,  90   b  are spaced a distance apart. The first well  90   a  and the second well  90   b  have the same dimensions and configurations. The depth or length of the well  90 , as measured from a lower surface (not shown) of the disk  50  can vary. Similarly, the number and dimensions of the well  90 , including the diameter, can vary with the numerous design parameters.  
      A drain hole  49  can be positioned in the disk  50 , preferably in the center portion  62 . When the flowable contents, i.e., liquid, accumulate between an interior surface of the cover  12  and the disk  50 , the drain hole ensures the drainage of such contents into the container.  
      Referring to  FIG. 1 , the disk  50  and the cover  12  are cooperatively dimensioned such that the disk  50  can be positioned within an interior portion of the cover  12  to define an “assembled position.” Referring to  FIG. 3 , in the assembled position, the disk  50  is rotatably supported by at least one support ledge  102  which is formed by the support member  34  extending radially inward as explained above. Specifically, a portion of the edge  51  of the disk  50  rotatably engages the support ledge  102 . The disk  50  can be further rotatably supported by the interior edge  104  of the recessed portion  40 . Although the cover  12  is shown in one preferred embodiment as having three support members  34  and three corresponding support ledges  102 , the number and configuration of the members  34  and the ledges  102  can vary with the design parameters.  
      In the assembled position, the disk  50  is positioned proximate the cover  12  such that at least a portion of the post  54  is received by and extends through the slot  30 . Described in a different manner, the disk  50  is positioned beneath the cover  12  such that the center portion  36  of the cover  12  is proximate the center portion  62  of the disk  50 .  
      In the assembled position, the disk  50  is movable between a first position P 1  and a second position P 2 . In the first position P 1 , as shown in  FIG. 1 , the projection  52  is received by the drink opening  28  such that the opening  28  is sealed and the lid  10  is closed. When the opening  28  is sealed, the edge  29  of the opening  28  is in frictional engagement with the projection  52 . The top portion  70  of the projection  52  can extend past the edge  29  of the drink 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. Also, in the first position P 1 , the recessed portion  84  of the disk  50  is engaged with the recessed portion  40  of the cover  12 . In addition, in the first position P 1 , the aperture  78  is misaligned or offset from the opening  28 . Alternatively, the projection  52  and the opening  28  are in a snap fit engagement wherein each have sufficient structure to enable the snap fit engagement. Other cooperating structures can also be utilized.  
      In an alternate configuration of the disk  50 , the projection  52  is omitted and the disk  50  has a generally planar surface (not shown). In the first position P 1 , the planar surface of the disk  50  is aligned with the opening  28  in a surface-to-surface engagement such that the opening  28  is sealed.  
      In the second position P 2 , a user engages the post  54  to rotate the disk  50  wherein the aperture  78  is aligned with the drink opening  28  to form a passageway between the disk  50  and the cover  12  wherein the lid  10  is open. The passageway permits the passage or flow of the flowable substance held by the container through the lid  10 . When the lid  10  is in the second position P 2 , at least a portion of the edge  80  of the aperture  78  is aligned with at least a portion of the edge  29  of the drink opening  28 . Also, in the second position P 2 , the recessed portion  84  of the disk  50  is misaligned or offset from with the recessed portion  40  of the cover  12 . In addition, in the second position P 2 , the projection  52  is misaligned or offset from the opening  28 . When the aperture  78  is partially aligned with the drink opening  28 , the passageway remains but its dimensions are reduced. When the aperture  78  is completely misaligned with the drink opening  28 , the passageway is eliminated. When the aperture  78  is completely misaligned with the drink opening  28  and the projection  52  is completely received in the opening  28 , the opening  28  is sealed and the lid  10  is in the first position P 1 .  
      When the disk  50  is moved between the first position P 1  and the second position P 2 , a portion of the edge  51  of the disk  50  remains in rotatable engagement with the support ledge  102 . Accordingly, the support ledge  102  provides support to the disk  50  such that the disk  50  remains in the assembled position during movement between the first and second positions, P 1 , P 2 . When the cover  12  includes a plurality of support ledges  102 , a greater portion of the edge  51  of the disk  50  remains in rotatable engagement with the support ledges  102 . The edge  104  of the recessed portion  40  provides additional support for the disk  50  as it is moved between the first and second positions P 1 , P 2 .  
      A user can move the disk  50  between the first position P 1  and the second position P 2  by grasping and actuating or manipulating the post  54  between the first end  30   a  of the slot  30  and the second end  30   b  of the slot  30 . Referring to  FIG. 1 , when the post  54  is proximate the first end  30   a , the disk  50  is in the first position P 1 . Conversely, when the post  54  is proximate the second end  30   b , the disk  50  is in the second position P 2 . The post  54  can be located in a number of positions between the first and second ends  30   a ,  30   b  and as a result, the projection  52  can be misaligned with the opening  28  to varying degrees.  
      The disk  50  can be rotated or moved a varying amount depending upon the numerous design parameters of the lid  10 , including but not limited to the configuration and dimensions of the post  54  and the slot  30 . Thus, the disk  50  assumes a number of positions and those positions depend upon the location of the post  54  relative to the slot  30 . The movement of the disk  50  and the post  54  is ultimately constrained by the first and second ends  30   a ,  30   b  of the slot  30 .  
      The lid  10  is adapted to permit a user to move the post  54  between the first and second positions P 1 , P 2  with only one hand. This means that a user can hold the container and manipulate the post  54  with the same hand. This increases the flexibility and the commercial value of the lid  10 .  
      As explained above, the disk  50  can have two separate apertures  78 , wherein the apertures  78  are positioned about the projection  52 . In this configuration, the disk  50  can be rotated in either a clockwise or counter-clockwise direction to move the disk  50  between the first position P 1  and the second position P 2 . For example, rotating the disk  50  in the clockwise direction brings one aperture  78  into alignment with the opening  28 , while rotating the disk in the counter-clockwise direction brings the other aperture  78  into alignment with the opening  28 . This feature further increases the flexibility and the commercial value of the lid  10 . In such configuration, the length of the slot  30  is increased to allow for counterclockwise rotation of the disk  50  such that both apertures  78  can be aligned with the opening  28 .  
      The lid  10  is adapted to be used without the disk  50 . This means that the cover  12  is connected to a container but the disk  50  is omitted. In this configuration, there is no slot  30  and there is no structure to seal the opening  28  in the cover  12  and as a result, the flowable substance held by the container can pass through the lid  10 . In this configuration, the recessed portion  40  remains positioned on both the top wall  14  and the side wall  16 . However, the drink opening  28  can be positioned in either the top wall  14  or the side wall  16 .  
      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 projection  52 . The slot  30  can be formed with a range of dimensions. At a minimum, the slot  30  should have dimensions sufficient to receive and permit the movement of the post  54 .  
      The opening  28  can be located at various positions along the top wall  14  depending upon design parameters. Similarly, the slot  30  can be located at various positions along the top wall  12 . The opening  28  and the slot  30  are spaced a distance apart. Preferably, the opening  28  and the slot  30  are opposed on the top wall  12 , meaning that they are positioned approximately 180 degrees apart. Alternatively, the post  54  is located on the sidewall  59  of the disk  50 , and the slot  30  is cooperatively located on the sidewall  16  of the cover  12 . In this configuration, a user moves the lid  10  between the first and second positions P 1 , P 2  by engaging the post  54  that extends through the slot  30  positioned on the side wall  16  of the cover  12 .  
      Although shown as having a generally circular shape, the lid  10 , including the mounting portion  22 , the flange  24  and the skirt  26 , 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  22  should match the shape of the upper edge of the container so a cooperative sealing engagement can be achieved.  
      Alternatively, the mounting portion  22  could have a shape similar to the upper edge of the container, yet dissimilar from the shape of the side wall  16  and the top wall  14 . For example, the mounting portion  22  could have an annular shape consistent with the container shape and the walls  14 ,  16  could have a non-annular shape.  
      Unlike prior art designs, the dimensions and the configuration of the opening  28  are not affected by the engagement and disengagement of the projection  52  as the disk  50  is moved between the first and second positions P 1 , P 2 . This attribute allows a user to repeatedly move the disk  50  between the first position and second position. Accordingly, the structural integrity and the durability of the lid  10  are increased.  
      The well  90  is adapted to aid in the storage and/or stacking of the disk  50  prior to the disk  50  and cover  12  being placed in the assembled position. Specifically, the well  90  is adapted to ensure that multiple disks  50  remain stacked in a stable vertical configuration prior to assembly of the lid  10 . A portion of the well  90  of a first disk  50  engages a portion of well  90  of an adjacent second disk  50  positioned below the first disk  50 . Accordingly, the well  90  should have a depth or length sufficient to permit it to engage a portion of the well  90  of the second disk  50 . In an alternative configuration, the well  90  can be randomly placed wherein the well  90  of the first disk would rest on the top wall  56  of the second disk  50 .  
      The well  90  is further adapted to aid in the storage and/or stacking of the assembled lid  10 . Specifically, the well  90  is adapted to ensure that multiple lids  10  remain stacked in a stable vertical configuration. A portion of the well  90  of a first lid  10  engages a portion of an adjacent cover  12  of a second lid  10  positioned below the first lid  10 . Accordingly, the well  90  should have a depth or length sufficient to permit it to engage a portion of the cover  12 . The engagement of the well  90  with a portion of the cover  12  stabilizes the first and second lids  10  in their vertical position. The engagement of the well  90  with a portion of the cover  12  prevents the first and second lids  10  from becoming destabilized and/or misaligned.  
      The lid  10  can be formed by a variety of manufacturing processes, such as injection molding or a thermoforming operation, preferably vacuum forming and/or pressure forming. The cover  12  is preferably formed from plastic, however, other lightweight materials can be used to form the cover  12 . After the manufacturing process has been completed, the drink opening  28  and the slot  30  may be formed in the cover  12  with a punch and die.  
      Preferably, the disk  50  is formed from the same material used to form the cover  12 . However, the disk  50  can be formed from other lightweight materials. After the manufacturing process has been completed, the aperture  78  may be formed in the disk  50  with a punch and die.  
      The lid  10  can include a color-based system for indicating the status of the lid  10 . Under the color-based system, a portion of the lid  10  would display a first color, e.g., red, when the lid  10  is closed in the first position P 1 . Similarly, a portion of the lid  10  would display a second color, e.g., green, when the lid  10  is open in the second position P 2 . The first and second colors would be displayed in a visible portion of the lid  10  such that a user of the lid  10  could readily ascertain the status of the lid  10 . Referring to  FIGS. 1 and 4 , the first color is positioned on the disk  50  to the right of the post  54  and the second color is positioned on the disk  50  to the left of the post  54 . Accordingly, when the lid  10  is in the closed position P 1  shown in  FIG. 1 , the first color is visible through the slot  30 . Conversely, when the lid  10  is in the open position P 2 , the second color is visible through the slot  30 . In this manner, a user can verify the status of the lid  10  by simply looking at the color indicator displayed through the slot  30 . As a result, the utility and marketability of the lid  10  is increased.  
      In an alternate color-based system configuration, the first color is positioned on the projection  52  wherein it is visible when the lid  10  is in the closed position P 1 . The second color is positioned on the edge  80  about the aperture  78  wherein it is visible when the lid  10  is in the open position P 2 . In this manner, a user can verify the status of the lid  10  by simply looking at the color indicator displayed in the opening  28 .  
       FIGS. 5-8  disclose another preferred embodiment of the lid of the present invention. As shown in  FIG. 5 , the reclosable lid  210  generally includes a first piece or cover  212 , and a movable second piece or overlay  250 .  FIG. 5  shows the lid  210  in the open position wherein the flowable substance can flow or pass through the lid  210  via opening  228 .  
      Referring to  FIGS. 5 and 6 , the cover  212  is adapted to span the opening in the upper portion of the container (not shown) that is generally defined by an upper rim or edge of the container. The cover  212  has 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  214   a , the upper surface  214   a  can be curved or angled. The side wall  216  has a side wall surface  216   a  and a lower edge  220 . The side wall surface  216   a  can be curved, angled, or generally flat. The overall shape of the cover  212  is generally frustaconical, however, the cover  212  can have a number of other configurations.  
      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  16 .  
      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. 6  as having an obround shape, the opening  228  can have a variety of shapes, including but not limited to circular, square, or rectangular.  
      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.  
      As shown in  FIG. 6 , 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 .  
      Referring to  FIGS. 5 and 6 , 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  240   a  are positioned radially inward from the side wall surface  216   a.  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  240   b  at the recessed portion  240 .  
      As shown in  FIGS. 5 and 7 , the overlay  250  is a discontinuous structure adapted to be positioned about the cover  212 . The overlay has a top wall  252  and a side wall  254  depending from an outer or peripheral edge  256  of the top wall  252 . Although the top wall  252  is shown as having a generally flat upper surface  252   a , the upper surface  252   a  can be curved or angled. The side wall  254  has a side wall surface  254   a  and a lower edge  258 . The side wall surface  254   a  can be curved, angled or generally flat.  
      A mounting portion  260  depends from the lower edge  258  of the side wall  254 . The mounting portion  260  includes a generally annular flange  262  and a generally annular skirt  264 . The mounting portion  260  is adapted for rotatably connecting the overlay  250  to the mounting portion  222  of the cover  212  such that the overlay  250  and the cover  212  are in rotatable engagement. The mounting portions  222 ,  260  are cooperatively dimensioned such that the overlay  250  can be positioned about the cover  212  wherein the overlay  250  can be rotatably moved with respect to the cover  212 . The mounting portions  222 ,  260  have a generally annular configuration. Alternately, the mounting portions  222 ,  260  could have a configuration with angular or linear segments.  
      Preferably the mounting portions  222 ,  260  have a continuous configuration, as shown in  FIGS. 5-8 . Alternatively, the mounting portions  222 ,  260  have a discontinuous configuration, meaning that the portions  222 ,  260  have material removed that results in a notched configuration.  
      As shown in  FIG. 7 , the overlay  250  has a projection  264  that is located preferably in the top wall  252 . Alternatively, when the drink opening  228  is positioned in the side wall  216  of the cover  212 , the projection  264  is cooperatively positioned in the side wall  254  of the overlay  250 . The projection  264  depends from a lower or inner surface (not shown) of the top wall  252 . The projection  264  has a peripheral edge  266  that defines the shape of the projection  264 . Preferably, the projection  264  is cooperatively dimensioned with the drink opening  228  such that at least a portion of the projection  264  is adapted to be received by or positioned in the opening  228 . When the projection  264  is completely received in the opening  228 , the opening  228  is sealed and the lid  210  is in the closed position shown in  FIG. 8 . In the closed position, a bottom wall  268  of the projection  264  extends past the top wall surface  214   a.    
      As further shown in  FIG. 7 , a center portion  270  is positioned radially inward from an inner edge  272  of the top wall  252 . Preferably, the center portion  270  is recessed such that the center portion  270  has a curvilinear configuration when viewed in cross-section. Described in a different manner, the center portion  270  has a concave shape when the portion  270  is viewed from a point above the lid  210 . The degree of recess or curvature of the center portion  270  can vary with the design parameters of the lid  210 . Alternatively, the center portion  270  is in planar alignment with the top wall  252 . In this configuration, the center portion  270  is not recessed.  
      The overlay  250  has at least one gripping element  274  positioned on a portion of the side wall  254 . The gripping element  274  is adapted to facilitate rotational movement of the overlay  250 . Accordingly, a user engages the element  274  to aid in the rotation of the overlay  250 . Although shown as having a generally elongated configuration, the element  274  can have a wide range of configurations and dimensions. In addition, the gripping element  274  can be positioned on the side wall  254 , the top wall  252  or on a portion of both the side wall  254  and the top wall  252 . Alternatively, the gripping element  274  is positioned on a portion of the mounting portion  260 . The gripping element  274  can be integral to the overlay  250  or it can be a separate element fastened to a portion of the overlay  250 . For example, the gripping portion can be a plastic or rubber element fastened to the overlay  250 .  
      The overlay  250  can have alternate structures for facilitating movement of the overlay  250 . For example, the overlay  250  could have a post or a ring extending from a portion of the overlay  250 , each adapted for a user to engage and rotate the overlay  250 .  
      As shown in  FIGS. 5, 7  and  8 , and as explained above, the overlay  250  has a discontinuous structure, meaning that neither the top wall  252  nor the side wall  254  are continuous along the circumference of the cover  250 . As a result, the overlay has a first side wall portion  254   b  and a second side wall portion  254   c . When the projection  264  is located in a portion of the top wall  252 , the projection  264  is positioned proximate either of the side wall portion  254   b  or the second side wall portion  254   c . Preferably, the gripping element  274  is positioned on the other of the wall portion  254   b  or the second side wall portion  254   c . Alternatively, the gripping element  274  is positioned on the side wall portion  254   b ,  254   c  proximate the projection  264 .  
      Due to its discontinuous configuration, the overlay  250  has an aperture  276 . In one preferred embodiment, the overlay  250  has two aperture  276  wherein the portion of the overlay  250  above the mounting portion  262  has a generally hour-glass shape. The configuration and dimensions of the aperture  276  can vary greatly with the design parameters of the lid  210 . Referring to  FIG. 7 , the overlay  250  has two separate apertures  276   a ,  276   b . Each of the apertures  276   a, b  span a portion of the side wall  254 , the top wall  252  and the center portion  270 . Alternatively, the apertures  276   a ,  276   b  span only a portion of the side wall  254  and the top wall  252 .  
      As shown in  FIG. 5 , the aperture  276  is adapted to permit the passage or flow of the flowable contents held by the container through the opening  228  when the aperture is generally positioned about the opening  228 . Described in another manner, when the aperture  276  is aligned with the opening  228 , the flowable contents can pass through the opening  228 . Therefore, the aperture  276  should have a minimum configuration sufficient to permit the passage of the flowable contents through the aperture  228 .  
      The cover  212  and the overlay  250  each have a generally thin-wall construction. However, the wall thickness of the cover  212  and the overlay  250  can vary depending upon the design parameters, including the structural integrity of the lid  210 .  
      Referring to  FIGS. 5 and 8 , the overlay  250  and the cover  212  are cooperatively dimensioned such that the overlay  250  can be positioned on the cover  212  to define an “assembled position.” In the assembled position, the overlay  250  is rotatably supported by the engagement of its mounting portion  260  and the mounting portion  222  of the cover  212 . Specifically, a lower surface of the mounting portion  260  engages an upper surface of the mounting portion  222 . Accordingly, the mounting portion  260  and the mounting portion  222  are cooperatively dimensioned such that the overlay  250  can be rotated with respect to the cover  212 , where the cover  212  is generally fixed to the container.  
      In addition, the overlay  250  can be rotatably supported by the engagement of its center portion  270  and the center portion  236  of the cover  212 . Specifically, a lower surface of the center portion  270  engages an upper surface of the center portion  236 . Accordingly, the center portion  270  is cooperatively dimensioned with the center portion  236  of the cover  212 . Alternatively, the lid  210  can be configured to have a clearance between the center portions  236 ,  270  such that the center portions  236 ,  270  are not in engagement. In this configuration, the overlay  250  rotatably engages the cover  212  by the engagement of the mounting portions  222 ,  260 .  
      Alternatively, the overlay  250  can be rotatably supported by the engagement of its top wall  252  with the top wall  214  of the cover  212 . Accordingly, the top wall  252  is cooperatively dimensioned with the top wall  214  of the cover  212 . In another alternative, the overlay  250  can be rotatably supported by the engagement of its side wall  254  with the side wall  216  of the cover  212 . Accordingly, the side wall  254  is cooperatively dimensioned with the side wall  216  of the cover  212 .  
      In the assembled position, the overlay  250  is movable between a first position P 1  and a second position P 2 . In the first position P 1 , shown in  FIG. 8 , the projection  264  is received by the drink opening  228  such that the opening  228  is sealed wherein the lid  210  is closed. When the opening  228  is sealed, the edge  229  of the opening  228  is in frictional engagement with the projection  264 . A bottom portion (not shown) of the projection  264  can extend past the edge  229  of the drink 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. Also, in the first position P 1 , the aperture  276  is misaligned or offset from the opening  228 . Alternatively, the projection  264  and the opening  228  are in a snap fit engagement wherein each have sufficient structure to enable the snap fit engagement. Other cooperating sealing structures can also be utilized.  
      In the second position P 2 , shown in  FIG. 5 , a user rotates the overlay  250  wherein the aperture  276  is aligned with the drink opening  228  to form a passageway between the overlay  250  and the cover  212 . In the second position P 2 , the lid  210  is open. The passageway permits the passage or flow of the flowable substance held by the container through the lid  210 . When the lid  210  is in the second position P 2 , at least a portion of the aperture  276  is aligned with at least a portion of the edge  229  of the drink opening  228 . Also, in the second position P 2 , at least a portion of the recessed portion  240  of the cover  212  is aligned with the aperture  276 . In addition, in the second position P 2 , the projection  264  is misaligned or offset from the opening  228 . When the aperture  276  is partially aligned with the drink opening  228 , the passageway remains but its dimensions are reduced.  
      When the overlay  250  is moved between the first position P 1  and the second position P 2 , the mounting portion  260  of the overlay  250  remains in rotatable engagement with at the mounting portion  222  of the cover  212 . Accordingly, the mounting portions  222 ,  260  provide support to the overlay  250  such that the overlay  250  remains in the assembled position during movement between the first and second positions, P 1 , P 2 .  
      When the overlay  250  is moved between the first position P 1  and the second position P 2 , the center portion  270  of the overlay  250  remains in rotatable engagement with at the center portion  236  of the cover  212 . Accordingly, the center portions  236 ,  270  provide an additional amount of support to the overlay  250  such that the overlay  250  remains in the assembled position during movement between the first and second positions, P 1 , P 2 .  
      A user can move the overlay  250  between the first position P 1  and the second position P 2  by grasping and manipulating a portion of the overlay  250 , for example, the side wall  254 , the top wall  252  or the mounting portion  260 . Alternatively, when so configured, the user can move the overlay  250  between the first and second positions P 1 , P 2  by engaging the gripping element  274 .  
      The overlay  250  can be rotated or moved a varying amount depending upon the numerous design parameters of the lid  210 , including but not limited to the configuration and dimensions of the side wall  254 , the mounting portion  260 , the projection  264  and the aperture  270 . Thus, the overlay  250  can assume a number of positions with respect to the cover  212 . The lid  210  is adapted to permit a user to move the overlay  250  between the first and second positions P 1 , P 2  with only one hand. This means that a user can hold the container and manipulate the overlay  250  with the same hand. This increases the flexibility and the commercial value of the lid  210 . As shown in  FIGS. 5, 7  and  8 , the overlay  250  has two separate apertures  276  which permit the overlay  250  to be rotated in either a clockwise or counter-clockwise direction to move the overlay  250  between the first position P 1  and the second position P 2 . This feature further increases the flexibility and the commercial value of the lid  210 .  
      The lid  210  is adapted to be used without the overlay  250 . This means that the cover  212  is connected to a container but the overlay  250  is omitted. In this configuration, there is no structure to seal the opening  228  in the cover  212  and as a result, the flowable substance held by the container can pass through the lid  210 . In this configuration, the recessed portion  240  remains positioned on both the top wall  214  and the side wall  216 . However, the drink opening  228  can be positioned in either the top wall  214  or the side wall  216 .  
      Although shown as having a generally circular shape, the lid  210 , including the mounting portions  222 ,  260 , 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 ,  260  should match the shape of the upper edge of the container so a cooperative sealing engagement can be achieved.  
      Alternatively, the mounting portions  222 ,  260  could have a shape similar to the upper edge of the container, yet dissimilar from the shape of the side walls  216 ,  254  and the top walls  214 ,  252 . For example, the mounting portions  222 ,  260  could have an annular shape consistent with the container shape and the side walls  216 ,  254  and/or the top walls  214 ,  252  could have a non-annular shape.  
      Unlike prior art designs, the dimensions and the configuration of the opening  228  are not affected by the engagement and disengagement of the projection  264  as the overlay  250  is moved between the first and second positions P 1 , P 2 . This attribute allows a user to repeatedly move the overlay  250  between the first position P 1  and the second position P 2 . Accordingly, the structural integrity and the durability of the lid  210  are increased.  
      The lid  210  can be formed by a variety of manufacturing processes, such as injection molding or a thermoforming operation, preferably vacuum forming and/or pressure forming. The cover  212  is preferably formed from plastic, however, other lightweight materials can be used to form the cover  212 . After the manufacturing process has been completed, the drink opening  228  may be formed in the cover  212  with a punch and die. The aperture  276  could also be formed with a punch and die.  
      Preferably, the overlay  250  is formed from the same material used to form the cover  212 . However, the overlay  250  can be formed from other lightweight materials.  
      The cover  212  can have at least one cover drain hole (not shown), preferably positioned in the center portion  236  near a lowermost portion of the center portion  236 . When excess flowable contents, e.g., liquid, accumulate on the cover  212 , the drain hole ensures the drainage of such contents into the container.  
      The overlay  250  can have an overlay drain hole (not shown), that is cooperatively dimensioned with the cover drain hole described above. The overlay drain hole is cooperatively positioned with the cover drain hole such that when the overlay  250  is rotated to the first position P 1 , the cover drain hole and the overlay drain hole align to form a passageway that ensures the drainage of accumulated container contents. Alternatively, the overlay drain hole is cooperatively positioned with the cover drain hole such that when the overlay  250  is rotated to the second position P 2 , the cover drain hole and the overlay drain hole align to form the passageway.  
      The cover  212  can have at least one cover vent hole (not shown), preferably in the center portion  236  or the side wall  216 . Alternatively, the cover vent hole is positioned in a portion of the top wall  214  or a portion of the side wall  216 . The cover vent hole is adapted to ensure the continuous flow of the container contents though the opening  228  while venting the container. Preferably, the cover vent hole is positioned such that the venting of the container occurs while the lid  210  is in the second position P 2 .  
      The overlay  250  can have an overlay vent hole (not shown), that is cooperatively dimensioned with the cover vent hole described above. The overlay vent hole is cooperatively positioned with the cover vent hole such that when the overlay  250  is rotated to the second position P 2 , the cover vent hole and the overlay vent hole align to form a passageway that ensures the venting of the container.  
      The drain holes and the vent holes described above can be formed with a punch and die after the lid  210  manufacturing process has been completed. Alternatively, a pointed tool may be used to form the drain holes and the vent holes.  
      In another preferred embodiment (not shown), the lid has at least one pin on either the overlay or the cover. In addition, the lid has at least one socket on the other of the overlay or the cover. The pin and the socket are cooperatively dimensioned such that when the pin is received by the socket, the overlay is in rotational engagement with the cover. Because the overlay and the cover are in rotational engagement, the lid can be rotated between the first and second positions P 1 , P 2 . The pin and socket are adapted to support the overlay when the lid is rotated between the first and second positions P 1 , P 2 .  
      The cover has a center portion that can be recessed. The overlay is a discontinuous structure that is adapted to be positioned about the cover. The overlay has at least one aperture that is alignable with an opening in the cover. Preferably, the pin depends from a lower surface of the overlay, and the socket depends from an upper surface of the cover. In this configuration, the socket is positioned in the center portion of the cover.  
      The overlay can include an annular mounting portion that engages a mounting portion of the cover. The overlay mounting portion supports the overlay during movement between the first and second positions. Alternatively, the overlay includes a mounting portion but it is segmented, meaning that it is not annular.  
      In another alternative, the annular mounting portion is omitted from the overlay. In this configuration, the pin and socket primarily support the overlay when the lid is rotated between the first and second positions P 1 , P 2 .  
      While 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.