RS52564B - ONE-TIME VACUUM CLEANER FOR ONE-TIME USE - Google Patents

Abstract

One-piece, one-piece vacuum-closure closure comprising a metal cylindrical body (1) with perpendicularly shaped perpendiculars (5) and a conical part (2) with peripherally circumferential oblique (4), at at which, at the base of the oblique part (2) on the circumference (3) of the perimeter, a line of reduced resistance for puncture of the closure is imprinted along a certain arch, and a rubber seal (6) is applied to the inside of the cylindrical body (1) at the point of contact with the vessel (7). ).

Description

Technical field to which the invention relates

The invention, in general, refers to closures, i.e. elements that have parts for capturing the outer periphery of the neck or the wall that defines the opening for pouring or emptying, and specifically to lids combined with stoppers that can be deformed, that is, combined with elastic stoppers, which are used to close various types of bottles and containers of different volumes.

According to the International Classification of Patents, the subject of the invention is classified, that is, classified and marked with the classification symbols B65D 41/28 and B65D 41/30.

Technical problem

The technical problem that is solved by this invention consists in the following: how to structurally solve a one-piece closure for single use with a sealing layer under which a negative pressure should be created in order to remain permanently on the container and ensure complete hermeticity until the moment of loss of that vacuum, which is achieved by breaking the cover at a certain weakened place.

State of the art

Different constructions of closures for closing fluid and solid materials are widely known, starting with metal crown closures and ending with closures used on cans for beer and other non-alcoholic beverages or on milk packaging.

The lack of the simplest closures is reflected in the fact that they do not ensure complete hermeticity, while more modern solutions are more expensive to manufacture, where opening the container requires at least two operations, and there is a possibility of self-injury of the user's fingers.

The advantage of the proposed solution compared to the known state of the art is reflected in the complete hermeticity of the vessel, easy and safe opening, low price and aesthetic appearance, whereby the opening by piercing the vessel is accompanied by a specific sound effect in a unique and interesting way. No additional "tools" are required for opening, unlike crown and similar disposable closures where an opener is required.

It is hygienically very effective, unlike, for example, a can, where the metal part that is in contact with the external environment when opening is pushed (punctured) into the interior so that the liquid that is consumed comes into contact with that part that enters inside, which may be dusty, dirty, etc.

The closure is used for the hermetic sealing under vacuum of bottles/containers without threads. After opening (removing the cap from the container) the cap becomes functionally and technically unusable and as such can no longer be used to close the bottle/container from which it was removed or to close any other bottle/container. In this way, better protection of the original product against illegal copying (counterfeit) is ensured compared to the previously known solutions.

Due to the previously described reason (the closure becomes functionally and technically unusable after opening), the closure can find greater use in products that are for instant consumption, i.e. they must be used immediately after opening and due to the characteristics of the product itself (e.g. quickly perishable after opening) or by the desire of the manufacturer to influence the speed/frequency of consumption of the product in this way.

By searching patent documents and reviewing professional literature in this field, as well as information about placements on the market, no similar solution to the technical problem was found.

Presentation of the essence of the invention

The closure in question is used to close various types of containers of different volumes. The construction consists of a one-piece metal profiled form that is shaped in a previously prepared mold by a mechanical drawing process. The cylindrical body formed in this way has vertical stiffeners around the perimeter, while the conical part has slanted stiffeners around the perimeter, where a line of reduced resistance is stamped at the base of the slanted part on the rim segment, along which the closure is pierced by pressing the upper non-ribbed surface of the conical part. A rubber gasket is applied to the inside of the cylindrical body.

The finished closure is placed on a container that closes automatically on a special machine that creates the necessary vacuum, which means the closure remains permanently on the container, until the moment when pressure on the upper surface of the conical part breaks through, which equalizes the pressures on the outside and inside of the container, which allows the closure to be removed.

Brief description of the draft images

The invention is described in detail on the exemplary embodiment shown in the drawing, on an enlarged scale, in which:

Figure 1 - represents the side view of the fastener with a partial section,

Figure 2 - represents the closure in a top view,

Figure 3 - represents a partial section of the closure fixed on the container,

Figure 4 - represents the appearance of the closure in the view from below in an isometric view,

Figure 5 - represents the shutter in isometric view i

Fig. 6 - represents detail A of Fig. 5 showing a segment with an imprinted line of reduced resistance for piercing the fastener.

Detailed description of the invention

The shutter consists of a one-piece metal profiled form which is drawn out in a previously prepared mold by a mechanical drawing process forming a cylindrical body 1 with vertical stiffeners 5 along the circumference and a conical part 2 with oblique stiffeners 4 along the circumference. of 90°. an imprinted line of reduced resistance along which the closure is pierced by pressing on the upper smooth surface of the conical part 2. A rubber seal 6 is applied to the interior of the cylindrical body at the place of contact with the container 7. Depending on the desired application, the closure can be made of aluminum alloy. steel, brass or some other metal. The rubber seal 6 achieves a good fit and sealing, and is made of food grade rubber. and plastic material that does not endanger human health can be used. The constructive solution ensures good rigidity of the closure, and in order to prevent injury to fingers when removing from the container, the edges are bent in a way that achieves the desired shape.

The finished closure is placed on the container 7, which closes automatically on a special machine where it is correctly oriented, brought to the installation head and creates the necessary vacuum by eliminating the underpressure in the environment, in which way the closure remains permanently on the container 7, until the moment when the pressure on the upper surface of the conical part 2 breaks through the segment 3 along the line of reduced resistance, which equalizes the pressures on the outside and inside of the container, which enables the removal of the closure. So, when a vacuum is created, the closure "deforms", i.e. expands and exerts pressure on the inner wall of the container, and when the closure is punctured by pressing the conical part on the weakened part and the pressures equalize, then the pressure on the inner walls relaxes and thus allows the removal of the closure.

The shutter does not require special shaping and manufacturing of the sealing surfaces except that they are flat and smooth. The only condition is that a negative pressure is created in the space under the shutter so that it remains permanently on the container until the moment of its breakthrough on the segment 3 on the line of reduced resistance, by pressing on the conical part 2 when the pressure in the container 7 equalizes with the ambient pressure. This condition means that the containers are not filled to the top, but there must be an empty space that should be at least 10% of the total volume of the container.

Claims (1)

1. One-piece vacuum seal, for single use. indicated by the fact that it consists of a metal cylindrical body (1) with vertical stiffeners (5) around the circumference and a conical part (2) with oblique stiffeners (4) around the circumference, where at the base of the oblique part (2) on the segment (3) of the rim, along a specific arc, a line of reduced resistance for breaking the shutter is pressed and that a rubber seal is applied to the interior of the cylindrical body (1) at the point of contact with the container (7) (6).