1. Field of the Invention
Embodiments of the invention relate to a lid for a container. More particularly, embodiments of the present invention are directed to a closure indicator for a lid that can be secured onto a container. Although embodiments of the invention are suitable for a wide scope of applications, it is particularly suitable for when the circumferential rim of a lid mates with the brim or rim of a container such that the dimples can then project outward to indicate the lid is appropriately secured onto the rim of the container.
2. Description of the Related Art
In general, lids known in the art include an annular outer rim that fastens over the brim of a container. However, the prior art lids are often deficient in that it is not readily known if the lid is secured appropriately onto the container. For example, if the lid is applied in haste onto a beverage container having liquid contents, the user may not have snapped the annular outer rim over the brim so as to fasten the lid onto the beverage container. In another example, the user may have bent the container while holding the container to create a slight gap or tolerance defined between the periphery of the annular circumferential rim and the brim of the container such that the lid can only be snapped onto the brim on two opposite sides of the beverage container. Once a user picks up a beverage container and attempts to drink from the container with the unsecured lid, the lid may become separated from the container and spillage of the contents may occur. Also, it is often difficult to quickly and accurately assess whether the lid is properly secured onto the container. In addition, the gap or tolerance between the circumferential rim of the lid and brim of the container will likely cause the lid to become completely dislodged from the container in the event a user accidentally spills the container, resulting in spillage of the contents therein.
Lids known in the prior art may not achieve a satisfactory sealing even with somewhat of a substantial fastening of the lid with the brim of a beverage container. Any gap or tolerance between the circumferential rim of the lid and brim of the container will likely result in a leak during use or cause the lid to become completely dislodged from the container in the event a user accidentally knocks over the container. Therefore, it is desirable to have a capability of being able to confirm proper lid closure and fastening of the lid onto a container so as to achieve a seal and prevent spillage.
Accordingly, embodiments of the invention are directed to a closure indicator for a lid that substantially obviates one or more of the problems due to limitations and disadvantages of the related prior art.
An object of embodiments of the invention is to provide a plurality of inverted dimples positioned along an outer side wall of a lid for a container.
Another object of embodiments of the invention is to provide at plurality of parallel ribs along an inner side wall of a circumferential rim of a lid for providing a seal fit to an inside surface of the container when the lid is secured to a brim of a container.
Another object of embodiments of the invention is to provide a lid with a plurality of support bases positioned along the outer side wall of the lid, wherein a dimple is mounted within each of the support bases.
Another object of embodiments of the invention is to provide dimples along an outer side wall of a lid such that the dimples reverse direction and project outwards beyond the outer side wall of the lid when the lid is appropriately secured to the brim of a container.
Another object of embodiments of the invention is to provide dimples along an outer side wall of a lid such that tracing the outer side wall with one or more fingers allows a user to touch the upper crown of the outwardly projecting dimples for both visual and tactile confirmation that the lid is appropriately attached to the brim of the container.
Another object of embodiments of the invention is to provide dimples along an outer side wall of a lid such that a raised dimple may revert to its original inverted position, by removing the lid from the container.
Additional features and advantages of embodiments of the invention will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice of embodiments of the invention. The objectives and other advantages of the embodiments of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
To achieve these and other advantages and in accordance with the purpose of embodiments of the invention, as embodied and broadly described, the lid for a container includes: a closure having a disk shape and a circumferential rim extending about a periphery of the closure; the circumferential rim further comprising an annular inner side wall, an annular outer side wall, wherein the outer side wall extends around the inner side wall and is opposite to the inner side wall, the outer side wall and inner side wall being interconnected by an annular top wall, the annular top wall interconnecting the outer side wall to the inner side wall, wherein the combination of the annular inner side wall, the annular outer side wall and the annular top wall define a channel; and a brim lock in the annular outer side wall for fastening the lid to the container; a plurality of dimples inverted along the annular outer side wall, wherein the plurality of dimples of the annular outer side wall project into the channel from the outer surface of the annular outer side wall and configured to be non-inverted dimples when the lid is secured onto the container.
In another aspect, a lid for a container includes: a closure having a disk shape and a circumferential rim extending about a periphery of the closure; the circumferential rim further comprising a raised annular inner side wall, a raised annular outer side wall, wherein the outer side wall extends around the inner side wall and is opposite to the inner side wall, the outer side wall and inner side wall being interconnected by an annular top wall, the annular top wall interconnecting the outer side wall to the inner side wall, wherein the combination of the raised annular inner side wall, the raised outer side wall and the annular top wall define a channel; a brim lock in the annular outer side wall for fastening the lid to the container; and a plurality of dimples recessed along the annular outer side wall; wherein the plurality of dimples project away from the channel and are configured to project beyond an outer surface of the annular outer side wall when the lid is secured onto the container.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are intended to provide further explanation of embodiments of the invention as claimed.
The accompanying drawings, which are included to provide a further understanding of embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of embodiments of the invention.
Reference will now be made in detail to the preferred embodiments of the invention, examples of which are illustrated in the accompanying drawings. The invention may, however, be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the invention to those skilled in the art. In the drawings, the thicknesses of layers and regions are exaggerated for clarity. Like reference numerals in the drawings denote like elements.
It is contemplated that the teaching of the description set forth below is applicable to all types of packaging, including but not limited to, disposable beverage cup containers made from styrofoam, compostable plastic or polymer material, thermoplastic, paper for coffee, tea, soda or other suitable material, as is readily appreciated by one skilled in the art. The present disclosure is therefore not intended to be limited to any particular container apparatus or configuration described in the exemplary embodiments of the present disclosure. It should be appreciated that the present invention may also be applicable to other types of containers, including but not limited to non-disposable containers, such as, for example, a vacuum sealed travel coffee cup, and food storage containers.
Referring now to
The circumferential rim 14 includes a raised annular outer side wall 20, a raised annular inner side wall 22 and an annular top wall 24, which interconnects the raised annular outer side wall and the raised annular inner side wall. The raised annular outer side wall 20, the raised annular inner side wall 22 and the annular top wall 24 define a channel 28 for mating with the brim 40 of the container 42. The outer side wall 20 is disposed opposite to the inner wall 22 at a distance from the inner wall 22 and is contiguous to the top wall 24. The annular outer side wall 20 extends around the annular inner wall 22. The annular outer side wall 20 is generally parallel to and opposite the annular inner side wall 22. The annular side walls 20 and 22 are interconnected by the annular top wall 24, which is generally perpendicular to the annular side walls 20 and 22. The raised annular outer side wall 20, the annular top wall 24 and the annular inner side wall 22 extend around the periphery of the lid 10 and form a channel 28 therebetween. The channel 28 is sized to fit the rim 40 of the container 42.
The annular inner side wall 22 includes annular rib elements 60 and 62. Rib elements 60, 62 form a channel 64 therebetween. The annular rib elements 60 and 62, each has generally convex profile relative to an inner surface of an inside wall of the container 42 and provides a sealing surface and leakage prevention. The rib elements 60 and 62 of the annular inner wall 22, provides lid 10 with a primary sealing surface and a secondary sealing surface, which is an advantageous redundancy. In this aspect, the lid 10 mates and seals with the brim 40 in at least two different locations that are spaced from the top wall 24 of the lid 10.
In an embodiment of the invention, the rib elements 60 and 62 are disposed in continuous rings parallel to one another with the first rib element 60 positioned on the inner side wall in a region proximate to the top wall 24 relative to the second rib element 62, which is positioned below the first rib element 60, for providing a sealing surface and leakage prevention. Each of the first and second annular ribs 60, 62 includes a generally convex profile relative to an inner surface of an inside wall of the container 42, and forms annular rib channel 64 therebetween. The rib channel 64 is intermediate to the first and second annular ribs 60, 62 and positioned at a bottom of the first annular rib 60 and a top of the second annular rib 62.
In an embodiment of the invention, a plurality of inverted dimples 30 is positioned along the annular outer side wall 20 and project inwardly from the outer surface of the annular outer side wall 20. The inverted dimples 30 are positioned along the outer side wall 20 such that prior to engagement of the lid 10 with the brim 40 of the container 42, a crown 32 of the inverted dimples 30 are recessed within the channel 28 of the lid 10. Inverted dimples 30 remain in that position until the lid 10 is placed over the rim 40 of the container 42. When the lid 10 is placed over the rim 40 of the container 42, the crown 32 of the inverted dimples 30 are in communication with the brim or rim 40 of the container 42. The inverted dimples 30 thus reverse direction and project upwards in a raised position so that the raised dimples 31 project beyond the outer surface of the annular outer side wall 20 so as to be perceived by visual or tactile means.
The crown 32 of the inverted dimples 30 extend below the outer surface of the annular outer side wall 20 and is positioned within the channel 28. When lid 10, is placed over the rim 40 of the container 42 for seating the lid 10 to the rim 40, the crown 32 of the inverted dimples 30 contact the rim 40 of the container 42. Applying pressure onto the lid 10 will cause the crown 32 of the inverted dimples 30 to reverse direction and pop out to project outwards beyond the outer surface of the outer side wall 20 of the lid 10 thereby providing both tactile and visual confirmation that the lid 10 is firmly and appropriately seated onto the rim 40 of the container 42
In one embodiment of the invention, equally spaced inverted dimples 30 are positioned in each quadrant of the lid 10. The crown 32 of the inverted dimples 30 reverses direction and project outwards from the outer side wall 20 when the lid 10 is seated firmly to the brim 40 of the container 42. The crown 32 of the raised dimples 31 project outwards beyond the surface of the outer side wall 20 such that the crown 32 of the raised dimples 31 may be observed visually from a side or top view. The sight of the raised or projecting dimples 31 confirms that the lid 10 is properly seated or fitted onto the rim or brim 40 of a container 42. The crown 32 of the raised dimples 31 may also be perceived by tactile means by tracing a finger along the surface of the outer side wall 20. The raised dimples 31 are generally semi-elliptical in shape, but may also be semi-spherical, triangular, rectangular, square or any other suitable geometric shape or size.
In another embodiment, a recessed dimple 33 is mounted to a support base 50. The recessed dimple 33 is raised beyond an apex 54 of the support base 50 when the lid 10 is firmly seated to the rim 40 of a container 42. In another embodiment, the support base includes a plurality of panels 52 which form a support for the recessed dimple 33.
In yet a further embodiment, an inverted dimple 30 is mounted to a support base 50. The inverted dimple 30 reverses direction and projects outwards to assume a raised position 31 beyond the apex 54 of the support base 50 when the lid 10 is seated to the rim 40 of the container 42.
Thus, in this manner, when the lid 10 is affixed to the rim 40, visual inspection of the lid 10 with respect to the container 42 is readily apparent and the structural integrity of the fastened lid 10 in conjunction with the container 42 can be assessed. It is noted that any number, size and configuration of the dimples 30 may be included so long as the visual inspection of the lid 10 with respect to the rim 40 of the container 42 is readily apparent and the structural integrity of the lid 10 is maintained. In one embodiment, dimples 30 are equally spaced in each quadrant of the lid 10. The precise spacing and number of dimples 30 may vary. Various configurations of the lid 10 and dimples 30 are possible and within the scope of the invention. It will be appreciated by those reasonably skilled in the art that the dimples 30 and lid 10 may include various diameters and heights based on the type of lid 10 and container.
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Thus, while there have shown and described and pointed out fundamental novel features of the disclosure as applied to various specific embodiments thereof, it will be understood that various omissions and substitutions and changes in the form and details of the apparatus illustrated, and in their operation, may be made by those skilled in the art without departing from the spirit of the disclosure. For example, it is expressly intended that all combinations of those elements and/or method steps which perform substantially the same function in substantially the same way to achieve the same results are within the scope of the invention. Moreover, it should be recognized that structures and/or elements and/or method steps shown and/or described in connection with any disclosed form or embodiment of the invention may be incorporated in any other disclosed or described or suggested form or embodiment as a general matter of design choice. It is the intention, therefore, to be limited only as indicated by the scope of the claims appended hereto.
This invention claims the benefit of U.S. Provisional Patent Application No. 61/649,855 filed on May 21, 2012, which is hereby incorporated by reference in its entirety.
Number | Date | Country | |
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61649855 | May 2012 | US |