Prior application Ser. No. 11/324,527. Jan. 4, 2006. is contained by reference.
Two major types of conventional beverage containers are available to supply consumers with an easy use container that is both conveniently sized and contains a convenient product amount.
One type, an aluminum beverage container, has an attached aluminum pull tab attached to the lid of a can that, when lifted, separates a scored panel in the can lid, producing a pour opening, giving access to the product. This method of opening does not support the ability to reclose and seal the beverage not consumed. As well as liquid, the sealing of high pressure gasses, forming in the can, also has to be sealed.
Sanitary concerns with contaminates present on the drinking area are troublesome.
Problems around the drinking area include the accumulation of dust or other undesirable material present, by containers being stored over time prior to purchase and use.
Without the ability to reseal the can, the product deteriorates through the loss of carbonated gasses, leaving the product unacceptable to the consumer, termed as being flat, the contents have to be disposed of, which may be inappropriate, and are wasteful.
Another container type is a plastic bottle, which is re-sealable. A removable cap is unscrewed from the bottle neck to provide a pour opening. This sealing method requires replacing the sealing cap to effect a seal, however the loss of the cap by accident, or design leaves the product unsealed and be discarded for the same reasons. The loss of the screw cap poses an additional problem, as this small plastic cap is problematic as pollution, being so small as to wash into storm drains, or make retrieving difficult. In both cases, transporting an open can or bottle can lead to spillage, for example in a bag or other container.
Past efforts have introduced electronic devices into bottle caps to entertain and engage users in games of chance, U.S. Pat. No. 6,545,594 is an example.
Accordingly, the benefits and desirable features provided by a plastic, self contained closure inserted into the lid of an aluminum beverage can, providing a liquid and gas tight seal is provided. In one embodiment a clam shell structure, having an upwardly rotatable upper panel, a mid portion rim seal inserted into and surrounding an aperture formed in a can lid there through, providing a pour opening. Included is a downwardly rotatable lower internal panel.
Lifting and rotating the upper panel selectively vents high pressure gas from the interior headspace of the can, or conserves high pressure gas required for product freshness within the can. With the high pressure removed, an easy opening lower internal panel is downwardly rotated into the interior of the can providing a pour opening.
The upper panel includes an extension to cover the drinking area surrounding the pour opening, such that a sanitary platform prevents contamination of this area, and is removed to a different location as the pour opening is presented for drinking or pouring.
Reversing the opening sequence replaces the lower internal panel into an original position, forming a liquid and gas tight seal. The upper panel is returned into an original first position when the closure is closed.
To take advantage of available and increasing technology developments such as electronic devices, the upper panel contains a sealed chamber of sufficient size to encase several electronic chips having audio, light source and other capabilities within. Commercially available containers have lower structures containing a variety of product, and have upper structures attached having a means to deliver such product.
These upper structures are by necessity large enough to operate by a user, and areas within such structures have available space and are provided with electronic device components. Various functions of the electronic device, but not limited to, is to entertain and inform users.
The present invention provides a re-closable gas and liquid tight seal for use in an aluminum beverage can, and on thermoplastic beverage containers. The operating principle of the closures are the same, different attachment requirements for aluminum beverage cans, and thermoplastic beverage containers are provided. Several aspects of the embodiments below illustrate various functions or methods, and are not intended to be limiting on the present invention. Like numerals refer to like parts through the drawings.
Referring now to more details of the drawings,
Lower internal panel 5 and depending wall 4 are positioned within the interior of can 1, and are subjected to high pressure gas in can 1 headspace. This pressure acting to more fully engage the sealing surfaces 5b and 5c in contact between lower internal seal 5 and depending wall 4, and compressing peripheral area of the outer slope of depending wall 4.
This pressure also tends to lift, or cause a doming of can lid 1, but is resisted
Upper lever 11 is shown attached at rim seal 4 extension 6e of lip seal 6 to allow rotation under the lip seal at the widest position. Dotted lines indicate an offset between an upper connection 11, and a lower connection at horizontal member 20, for the same reason. Of note enlarged hinge 19, is a common connection used throughout the actuating levers, and is best seen in
The opening sequence starts with lifting pull tab 10 inducing upper panel 9 to rotate around hinge 8. Several simultaneous actions are set in motion as this rotation occurs. Rounded protrusions
As rotation continues, sanitary platform 3, and tamper evident structure 17, 17s, upon tearing apart, are relocated, leaving a clean drinking area and a visual indication that the can has been initially opened to a second extended position,
Upon initial lifting of pull tab 10, the tab is distorted.
Thus upper panel 9 is rotated approximately 170 degrees around hinge 8 into a non intrusive position for drinking or pouring of the beverage product. High pressure gasses have been vented. Sanitary platform 3 has been removed to uncovered a clean drinking area surrounding closure 2, and tamper evident structure 17 is visually, permanently separated. Audio messages 18 have been introduced and delivered leaving a consumer choices to peruse at leisure.
Returning the levers to a first, folded position, repositioning lower internal panel 5 within and against depending wall 4 at a lower location, engaging sealing circumferential elements 5a and 5b. Thus lower internal panel 5 is repositioned into a first sealing relationship with depending wall 4, and is responsive to gasses emitting from remaining liquid and building pressure, engaging more fully in a sealing relationship. Sanitary platform 3 is replaced to cover the drinking area surrounding closure 2. Rounded protrusion(s) 9c are located under lip seal 6 as stated, locking upper panel 9 in a closed position, preserving the freshness of the remaining beverage.
Upper panel depending wall 9b cooperating within lip seal 6 providing a liquid tight cover to the upper panel 9.
In order for the above described articulation of lever members to be achieved, all pressure must be evacuated from the headspace within the can. On initial opening, the can headspace contains gas under high pressure and low volume. On a subsequence opening, depending on the amount of liquid removed, the headspace may contain gas at a lower pressure, but higher volume.
It may be conceived under these conditions that complete evacuation of pressure may need more time, and a delay in the operation of lever actuation to prevent undue force being applied to the levers during rotation of upper panel 9. This problem is addressed in
Subsequent opening allows T1 to slide 13t toward horizontal member 20, causing a delay before contact is made with horizontal member 20. At this point the levers, now under tension, begin relocating the levers to provide a pour opening. The extra time, and rotation of upper panel 9, require to slide from contact between T2 to T1 allows the volume of gas to dissipate to atmospheric pressure prior to force being applied to the levers.
Turning now to a closure for a thermoplastic beverage container.
The lower opening to vent 4a is slightly offset
As stated previously, to take advantage of available and increasing technology developments such as electronic devices, there exists an area between a domed structure on an upper panel of the closure, separated from a flat panel on a lower aspect circumferentially connected as shown in
With the upper panel initially rotating, the electronic chips are triggered and activated. When the panel is rotated to a location where the lower flat panel underside is visible to a user, their attention is drawn to, for example, a light source in the panel, and musical chimes sounding. The electronic chip is programmed to deliver a voice message containing an offer and an invitation with instructions to connect to a users cellular phone, to engage users in games of chance and other data that may be of interest. From their cellular phone the consumer may, at their convenience, peruse a variety of options, including but not limited to prizes, and make selections from data provided that meet their needs or interest.
Incorporating this technology into other types of commercially available containers offer more consumers the opportunity to participate in such games of chance, data exchange, safety instructions, or directions for product use. Other uses included electronic devices contained on medication containers, and could, for example transfer data to a users cellular phone, with dosage, reminders, and when and how to use such medication, or report problems encountered.
Such containers
Commonly found among these commercially available containers the upper structures, because of the design and functional hand held requirements, are sized sufficiently to provide space needed to incorporate the electronic device components 18 within the upper structure interior, with little modification required and with no interference to their operation. Such containers would contain products that could be liquid, powder, or granular in nature.
Examples are, but not limited to, dairy product containers, detergent containers, personal care products containers, and various cleaning agents.