The priority of Chilean Patent Application No. 3761-2008, filed on Dec. 17, 2008 is hereby claimed under the provisions of 35 USC 119. The disclosure of Chilean Patent Application No. 3761-2008 is hereby incorporated herein by reference in its respective entirety, for all purposes.
This invention refers to a system for closing containers of the bottle and/or jar type, which, at the same time, is a dispenser of active formulas placed inside an airtight space created in its interior, counting on specially designed means to be able to evacuate them towards the liquid or content of the bottle at the moment when the mixture needs to be made.
This closing system is equipped with an airtight tubular space designed to contain active formulas in its interior, and that at the same time contains a movable push-cut carriage that is moved mechanically by an external puller to cut the seals of said tubular space and push the active formulas towards the interior of a bottle or jar that contains liquids inside it, thus permitting the mixing of the formula with the content of the bottle at the moment it is required.
This type of closing system is now being used in the food area for the incorporation of elements such as vitamins or minerals, a process known as fortification, in which its components need to be stored separately from the content of the container in order to protect them hermetically from the humidity, the light, thus increasing their useful life and improving their effectiveness.
Similarly, these closing systems that permit the adding of substances, are used in the medical and/or pharmacological field, permitting the mixing of active formulas, such as, for example, probiotics at the moment they are required so as to avoid the rapid degradation of the final compound; in both cases, what is wanted is to free a particular additive, hermetically contained, brief moments prior to using and/or consuming the content of the container, permitting the mixing and subsequent freeing of the product that is already mixed without needing to remove the system that seals the bottle or jar.
At present, different alternatives can be found of systems that permit freeing solid or gaseous additives towards the interior of the container to which they are attached.
Sealing systems are known in the state-of-the-art that have a cavity for storing an additive that is set free towards the interior of the container by pressing vertically against a part of the system, thus permitting the perforation and/or pressuring of a seal that closes said cavity.
In applications US 2007/0023381 and WO2008/061766 we see systems that present in their interior a closed compartment or volume, with an upper wall formed by a flexible membrane and a base formed by a collapsible layer that breaks when pressure is exerted on the membrane, thus setting the additive free toward the interior of the container. In these cases, the additive is limited to those formats in a liquid or solid state that permit the transmitting of mechanical pressure exercised by the user to break the seal.
One of the limiting factors that can be observed in the mentioned references is that once the additive has been freed into the interior of the container, the closing system must be removed completely in order to consume or use said content.
Another unsolved point is the process whereby the inferior seal is broken which, when executed under pressure, does not permit controlling the cutting process and there is proof that parts of the sealing membrane can fall into the interior liquid of the bottle.
One of the qualities of this invention is that it does not require the removal of the closing system in order to use the product of the container or else consume the liquid once it is mixed.
On the other hand, thanks to the shape of an interior push-cut carriage, the additive is not limited to a solid or liquid format that exercises pressure and breaks the seal, but rather it permits the freeing of substances in powder, liquid or solid form indistinctly and with total control of the cutting process, so that waste from the seal cannot fall inside the bottle.
In the case of application WO 02/074647, a closure device is seen of the ‘push and pull’ type, with a sliding piece surrounded by a ring which in its lower position permits puncturing and pressing down on a membrane that is a seal commonly applied by induction in bottles or containers, to subsequently free towards the exterior the liquid contained in the container or bottle.
In the above-described case, the principal difference with the closing system of this application is that the device of the prior art is designed to be placed on a bottle that in its upper part already has a lid, a seal placed by induction, and that does not permit and neither is it designed to dispense formulas or active components towards the interior of the bottle as is the case of the invention presented in this application. In the latter, a closing system is provided that permits keeping the additive hermetically isolated without needing to seal the bottle.
The object of this invention is the protection of a closing system for a container of the bottle, jar or similar type, in which said system presents a configuration that permits the addition or liberation, by mechanical means, of an additive or active principle towards the interior of the container to which it is attached. This substance can be in a solid state (in the shape of a tablet or powder, granular or another format) or liquid (liquid, gel or the like).
In this case, the additive is maintained hermetically isolated from the exterior, both during its storage and during its liberation.
This system has a structure formed by four pieces: one cover, one actuator or puller, the basic body of the system and a mobile push-pull carriage. These pieces are interlocked, forming a single unit that is the closing system.
The description of the figures of this presentation, corresponding to the best mode for carrying out the invention, permits a better understanding of the system whose protection is being sought and its components:
In
The closure system of the invention is attached to a bottle-type container or the like, by engaging the thread of the flap (3.e) to the external thread on the container.
In its closed position, that is, when the system has not yet been manipulated, the cover (1) is engaged to the ring (3.d) of the basic body, in the zone of its safety ribbon (1.a).
In this position, the actuator (2) leans its exterior wall (2.a) over the mouthpiece (3.a) of the basic body, generating a contact between its peripheral shoulder (2.b) and the internal projection (1.b) of the cover, as well as the engaging of its exterior ring (2.d) with the upper projection (3.c) that has the mouthpiece of the basic body. The contact between the mentioned parts establishes closed volumes between the hood (1), the basic body (3) and the actuator (2), which form a barrier that keeps air or contaminants from passing towards the sector in which the additive is stored.
The central perforation of the actuator (2), in its turn, remains closed to the passing of air or humidity towards its interior because the tongue of the seal (1.c) of the cover remains in contact with the entire contour of the interior surface (2.c) of the actuator, forming an additional isolating volume.
In this same position of the system, closed, the carriage (4) lies inside the central compartment (3.f) of the basic body and hermetically isolated by the upper and lower membranes (3.l, 3.j).
One modality for manufacturing said airtight membranes is the utilization of aluminum sheets, covered with an epoxy material and sealed over the surfaces of the central compartment (3.f) by a process of pressure and heat, which permits joining them to the basic body of the system. The sealing membranes that can be used in the execution of this closing system, are not limited to the above description, other materials or other sealing systems may be used.
At the moment when one wants to dispense the additive into the bottle, the cover (1) must be removed, which will cause the safety ribbon (1.a) to become detached, the basic body (3) of the system will remain attached to it.
Subsequently, the actuator (2) is pushed by the user towards the interior of the container, causing its lower cross-shaped portion (2.e) to break the membrane of the upper seal (3.j), thus introducing itself into the central compartment (3.f) where it in turn pushes the mobile carriage (4).
When the carriage (4) is pushed and displaced downwards, its guillotine-shaped inferior border (4.e) partially cuts the membrane of the lower seal (3.i), thus permitting the liberation of the additive towards the interior of the container; the projecting shoulder of the carriage (4.c) is stopped from advancing by the internal projection (3.h) of the central compartment, where it remains engaged, thus preventing the sealing membrane (3.i) from being cut entirely and falling into the container together with the additive. The mixing of the additive in the liquid contained initially in the bottle can then be carried out. At the same time, the inferior conical part of the actuator perfectly seals the space through which it penetrated the tubular space, thus permitting shaking and mixing the additive together with the liquid in the container without permitting the liquid to seep or spill toward the outside.
To be able to use the mixture or final content of the container, the actuator must be pulled back to its initial position, with which the liquid will pass through the perforations (4.b) that the carriage has in its superior closure (4.a), towards the central perforation of the actuator. This proves that removing the closure system is not necessary in order to be able to drink or use the mixture that was produced inside the container.
The material of the system is a rigid material, preferably but not limited to the use of plastic materials in its manufacture.
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