Can re-sealing mechanism
Embodiments of mechanisms for resealing a can are disclosed. The mechanisms are adaptable to cans currently on the market. The mechanisms can be marketed as a stand alone (i.e., a post-purchase product), or alternatively, they can be applied by a manufacture (e.g., a cola bottling or canning company) to existing cans (e.g., during a filling stage of the manufacturing process or at another point in the process). In the embodiment, a can resealing mechanism includes an inner and outer flange configured to engage inner and outer surfaces of the can and the rivet and bent down flap portion of the can.
Cans are well known by consumers around the world and are available in a variety of shapes and sizes. Although they are widely used, there are many problems associated with the typical can.
One example of a problem that can occur applies specifically to cans used to store carbonated beverages. When the can is opened, carbonation escapes and, over a short time, the beverage becomes flat. This is also a problem for alcoholic and other beverages. In many instances, the entire contents of the can are not immediately consumed after opening. As a result, the remaining beverage is wasted as the lack of carbonation is undesirable to most consumers. Due to this waste and the lack of economical resealing mechanisms previously know in the art, it is difficult to market larger sized cans.
Another problem associated with cans occurs after opening when the open mouth of the can allows dirt or other unwanted debris or contaminants (such as bugs) to enter and contaminate the contents of the can, such as in the case with carbonated, alcoholic, non-alcoholic, juice and water beverages. This can result in undesirable beverage conditions and a wasteful disposal of remaining beverage. Also, this can be dangerous to persons with allergies to insects (such as allergies to bee stings) because insects are often attracted to the beverage in the can. If the insect enters the can, they are difficult to detect prior to consumption.
Yet another problem with cans occurs when an at least partially full can is accidentally spilled, such as in the case with carbonated, alcoholic, non-alcoholic, juice and water beverages. Spilled beverages can lead to stains and other unwanted results. Can spills occur frequently and may happen under potentially dangerous circumstances such as while driving an automobile.
Because of the problems associated with cans, their use has become increasingly unpopular.
SUMMARYEmbodiments of mechanisms for resealing a can are disclosed. The mechanisms are adaptable to cans currently on the market. The mechanisms can be marketed as a stand alone (i.e., a post-purchase product), or alternatively, they can be applied by a manufacture (e.g., a cola bottling or canning company) to existing cans (e.g., during a filling stage of the manufacturing process or at another point in the process).
In one exemplary embodiment, a can resealing mechanism includes an inner and outer flange configured to engage inner and outer surfaces of the can and a rivet and bent down flap portion of the can.
In another exemplary embodiment, a can resealing mechanism includes an outer flange configured to engage the outer surface of the can and a threaded inner flange which screws down into the can and engages the inner surface of the can and the rivet and the bent down flap portion of the can. The resealing mechanism can be one piece of material.
In another exemplary embodiment, a can resealing mechanism includes an outer flange configured to engage the outer surface of the can and a threaded inner flange which screws down into the can and engages the inner surface of the can and the rivet and the bent flap portion of the can. The resealing mechanism can be two or more separate and distinct pieces of material which are joined together.
In another exemplary embodiment, a can resealing mechanism includes an inner and outer flanges configured to engage inner and outer surfaces of the can and the rivet and the bent flap portion of the can which is activated by an internal expansion mechanism which, when activated, pushes the bottom inner flange out to engage the inner surface of the can.
In another exemplary embodiment, a can resealing mechanism includes an inner flange configured to engage the inner surface of the can and the rivet and the bent flap portion of the can and is covered by an outer suction cup mechanism that covers the can opening.
In yet another exemplary embodiment, the can resealing mechanism simply includes a mechanical device for holding an inner flange in an expanded conformation, over that in which the inner flange is inserted into the can, in order to better engage the inner surface of the can.
In yet another exemplary embodiment, the can resealing mechanism includes an inner flange and an outer flange, wherein the inner flange has a concave conformation.
Various other embodiments and combinations of features are contemplated, some of which are described in great detail below for the sake of example and illustration. Of course, the invention is not to be so limited.
BRIEF DESCRIPTION OF THE DRAWINGS
Before describing the present invention in detail, it should be noted that the invention can be used in a wide variety of different ways. For instance, mechanisms disclosed herein for resealing a can each can be distinct components, separate from the cans that they seal. In another embodiment, the mechanisms can be adaptable to cans that are currently on the market. In yet another embodiment, mechanisms can be sold as a stand-alone (i.e., post-purchase) product, or they can be applied by a manufacturer (such as a cola bottling or canning company) to existing cans (such as during a filling stage of the manufacturing process, or at another stage in the process). It should also be noted, of course, that the can resealing mechanisms can be fabricated or formed along with the cans, and they can be formed integrally with the cans, or applied to, or joined with, the cans after the can and the resealing mechanisms are formed, separately from one another.
In the embodiment shown in
In accordance with one embodiment of the present invention, inner flange 104 has a total circumference greater than the circumference of the opening in the can enabling inner flange 104 to completely cover the opening. In accordance with one embodiment, inner flange 104 has a total circumference at least approximately 5 percent greater than the circumference of the opening in the can. In another embodiment, inner flange 104 has a total circumference not more than approximately 10 percent greater than the circumference of the opening in the can providing a greater sealing configuration and allows for easy removal/release. Of course, any percent greater than the circumference of the can opening is within the scope of the present invention with respect to being easily removed or released by the consumer.
In accordance with another embodiment, outer flange 102 is constructed of a similar flexible material and standoff 110 is configured to space the inner flange 104 from outer flange 102 such that they snugly engage the inner and outer surfaces of the can proximate the opening. The engagement of inner flange 104 and outer flange 102 with the surfaces of the can proximate the opening creates a seal to some degree thereby minimizing or discouraging the escape of air, carbonation, and/or the contents contained within the can. This also impedes the introduction of contaminates into the can, such as dirt, dust, bugs, etc. Inner flange 104 and outer flange 102 may be constructed of the same, similar, or different materials, ranging from flexible to more rigid materials, without departing from the scope of the present invention. In particular, outer flange 102 very well may be constructed of a relatively rigid material such as rubber or a hard plastic. Inner flange 104 and outer flange 102 may be larger than the can tab as well.
In accordance with another embodiment, re-sealing mechanism 100 comprises a plurality of flanges, wherein at least one flange engages an inner surface of the can and at least one flange engages an outer surface of the can to at least partially close the opening in the can. In accordance with the illustrated embodiment, at least one flange configured to engage the outer surface has a greater total circumference than any flange engaging an inner surface. The larger outer flange protects the smaller inner flange discouraging dust and other debris from collecting on the inner flange. In addition, the larger outer flange discourages it from being pushed through the opening in the can.
In accordance with another embodiment of the present invention, tab mount piece 106 is an attachment mechanism utilized to secure mechanism 100 to a can or similar container. In accordance with one embodiment, mechanism 100 attaches to a typical can tab through at least one of the apertures commonly formed therein. For instance, mount piece 106 may be configured to engage both apertures formed in a typical can tab. In this embodiment, mount piece 106, which is illustratively, but not necessarily, constructed of a resilient material, deforms as it is pushed through the aperture in the can tab. Mount piece 106 is pushed through the can tab aperture until flange 108 engages the top edge of the tab. Flange 108 securely holds mechanism 100 to the can tab during use and allows the mechanism 100 to be turned within can tab aperture easily without coming off the can tab. Mount tab 106 may be constructed from the same or similar material as outer flange 102 or from a different material. Also, mount piece 106 may be constructed from either a flexible material or a more rigid material depending on the requirements of a given application.
In accordance with one embodiment, tab mount piece 106 is a relatively mushroom-shaped attachment mechanism which is utilized to secure mechanism 100 to a can. In accordance with yet another embodiment, mount tab 106 remains outside the can opening when utilized to secure mechanism 100 to a can.
In the embodiment shown in
Inner flange 104 can also have a raised edge 127 (shown in phantom in
In yet another embodiment, the bottom of inner flange 104 has a generally concave surface 128 (shown in phantom in
Once the can is opened,
Before describing the operation of mechanism 100 with can 450, it is important to note that other variations may be utilized to secure mechanism 100 to a can without departing from the scope of the present invention. These alternatives include, but are not limited to, fusing mechanism 100 to the can tab using heat or connecting using an adhesive such as glue or a known chemical reaction bonding process. Alternatively, mechanism 100 may be physically clipped to the tab. This is described in greater detail below.
In accordance with one aspect of the present invention, as is typical of most cans, tab 412 is used to open flap 419, creating opening 420, for drinking or other purposes. As was mentioned above, one problem with cans is their inability to be re-sealed after opening.
In accordance with one aspect of the present invention, with reference to
In accordance with one embodiment of the present invention, the standoff 110 between outer flange 102 and inner flange 104, shown in
In accordance with a previously mentioned embodiment of the present invention, mechanism 100 may be removed from can 450 to allow the contents to be emptied and/or consumed. Mechanism 100 is released from its engaged state by the consumer simply lifting the tab while also lifting the edge of the outer flange 102 thus causing inner flange 104 to deform. The deformation of inner flange 104 enables mechanism 100 to be removed from the can opening. Mechanism 100 is then manually moved away from the can opening by rotating it about rivet 414 thereby exposing the opening 420 for drinking purposes. The configuration of mechanism 100 allows for it to be repeatedly used to re-seal cans to preserve their contents.
In accordance with one embodiment,
In accordance with another embodiment of the present invention,
The multiple flanges help to secure the inner engagement by essentially providing a back-up flange in case the upper most inner flange is to slip out of the opening of the can for any reason (e.g., the can could be dropped, squeezed or dented). In accordance with one embodiment of the present invention, a second or third flange (or more) is provided. Of course, the multiple inner flanges can be used with one or more other embodiments described herein as well.
In accordance with one embodiment, threads 256 on the inner flange 254 engage the opening 120 by creating a tight fit of upper flange 102 to the surface of the can. The seal can be improved as the flexible material of inner flange 254 and threads 256 engage, and can actually be cut into by, the can opening 120. Furthermore, the flexible material of the inner flange 254 and threads 256 engage bent down flap 419 as they are pressed against the bent down flap, or even as the bent down flap 419 cuts into the flexible material of inner flange 254 and the threads 256. The mechanism 290 is removed by simply turning the upper flange 102 (using the finger grips or finger indentions) in the counter clockwise direction. It will be noted that the threads 256 can actually be threads, or they simply can be multiple annular ridges extending around the exterior periphery of the inner flange (such as flanges 304). In the latter case, the annular ridges will naturally enhance the screwing action if the mechanism 290 is turned and simultaneously pressed inward or pulled outward relative to the can. The feature in
In the embodiment shown in
It should also be noted that, in one embodiment, mount piece 306 is attached to the remainder of mechanism 300 by a rivet, or other attachment mechanism, on a mounting insert 307 that allows the remainder of the mechanism 300 to be rotatable relative to the mount piece 306. Thus, in one embodiment, mount piece 306 is attachable through a relatively ridged insert 307. This allows the remainder of the mechanism 300 to be screwed into (and out of) the opening in the can so that inner flange 304 resides within the can, while mount piece 306 remains attached to the can tab.
The locking action that holds member 408 in place can be provided by a mechanical detent, such as a notch 409, on the interior surface of mounting mechanism 106 (or at any other location within the interior or exterior of mechanism 400) that interacts with the hourglass shaped expandable mechanism 408. When downward pressure is exerted on the mounting piece 106, the hourglass shape piece 408 interacts with (e.g. clicks into) the mechanical detent to maintain its position in the vertically contracted, radially expanded conformation shown in
It will of course be understood that a variety of different embodiments have been described herein. However, the features of the various embodiments can be interchanged or combined in different combinations and all such combinations are contemplated herein. Also, many other mechanisms can be used to drive the inner flange on standoff into a radially expanded conformation, and those disclosed are exemplary only.
Although the present invention has been described with reference to preferred embodiments, workers skilled in the art will recognize that changes may be made in form and detail without departing from the spirit and scope of the invention.
Claims
1. A sealing device for at least partially resealing an open can having an opening tab, the sealing device comprising:
- an inner flange configured to be inserted through an opening in the can, the inner flange having a generally concave surface facing generally into the can; and
- an outer flange spaced from the inner flange such that, in a sealing conformation, the inner and outer flanges engage inner and outer surfaces, respectively, of the can.
2. The sealing device of claim 1 and further comprising:
- a movable mechanical pusher configured to receive a pushing force and to bear against the inner flange to cause the inner flange to expand radially outwardly to an expanded position.
3. The sealing device of claim 2 wherein the movable mechanical pusher comprises a button pushable from an unpushed position to a pushed position, the button being engageable with a mechanical detent to hold the button in the pushed position and to thus hold the inner flange in the expanded position.
4. The sealing device of claim 3 and further comprising:
- a finger grip portion interactively coupled to the button such that the finger grip portion can be pulled to disengage the button from the mechanical detent and move the button from the pushed position to the unpushed position, and to thus move the inner flange from the expanded position to a radially contracted position.
5. The sealing device of claim 2 wherein the movable mechanical pusher comprises a threaded element, and further comprising:
- a screw having threads that are threadably engaged with the threaded element such that the screw can be turned to move the threaded element to bear against the inner flange and drive the inner flange to the expanded position and to move away from the inner flange so the inner flange moves to a radially contracted position.
6. The sealing device of claim 1 wherein the outer flange is configured as a suction cup to engage the outer surface of the can and exert a suction force on the outer surface of the can when pushed to deform against the outer surface of the can.
7. The sealing device of claim 1 wherein the outer flange has a grip tab extending from an outer periphery of the outer flange.
8. The sealing device of claim 1 wherein the inner flange comprises a plurality of annular rings.
9. The sealing device of claim 1 wherein the inner flange has a threaded exterior surface.
10. The sealing device of claim 1 wherein the opening tab is connected to the can by a rivet and wherein the inner flange has an outer periphery with an indentation to accommodate a portion of the rivet.
11. The sealing device of claim 1 wherein the inner flange has a protrusion configured to abut a can flap that is dislodged to open the can.
12. The sealing device of claim 1 and further comprising a mount configured to be received within an aperture in the opening tab to mount the sealing device to the opening tab of the can.
13. A can plug for at least partially resealing a can that has an opening, the can plug comprising:
- an outer flange configured to bear against an outer surface of the can proximate the opening; and
- a deformable inner flange, deformable between a sealing position and an unsealing position, the inner flange being sized to engage an inner surface of the can proximate the opening when in the sealing position; and
- a mechanical element configured to move the inner flange between the sealing and unsealing positions.
14. The can plug of claim 13 and further comprising:
- a locking element configured to lock the deformable inner flange in the sealing position.
15. The can plug of claim 14 wherein the inner flange is configured in a radially contracted conformation when in the unsealing position and in a radially expanded conformation when in the sealing position.
16. The can plug of claim 15 wherein the inner flange has a generally concave surface.
17. The can plug of claim 15 wherein the mechanical element is movable to bear against the inner flange to deform the generally concave surface to be less concave and thus drive an exterior periphery of the inner flange to the radially expanded conformation.
18. The can plug of claim 17 wherein the mechanical element comprises a push button and wherein the locking element comprises a detent mechanically engageable with the push button.
19. The can plug of claim 17 wherein the mechanical element comprises a threaded element and wherein the locking element comprises a threaded screw threadably engaged with the threaded element.
20. A method of re-sealing a can having an opening tab configured to drive an opening in the can, the opening tab being connected to the can with a rivet, comprising:
- rotating a plug, connected to the opening tab, about the rivet to a position generally aligned with the opening in the can;
- advancing an inner flange on the plug into the opening such that an outer flange on the plug is abutting an outer surface of the can proximate the opening; and
- radially expanding the inner flange such that the inner flange abuts an inner surface of the can proximate the opening to at least partially seal the opening in the can.
Type: Application
Filed: Apr 19, 2006
Publication Date: Mar 22, 2007
Inventors: Todd Huffman (Plano, TX), Christopher Barker (Allen, TX), Brian Lipker (Bradenton, FL)
Application Number: 11/406,827
International Classification: B65D 51/18 (20060101); B65D 17/34 (20060101);