ES2698364T3 - Storage device, container equipped with same and manufacturing procedure of the storage device - Google Patents

Abstract

Storage device for storing a liquid and, specifically, for arrangement in a container comprising a liquid and/or a gas, said storage device comprising - a storage tube having a cylindrical wall element (12, 61, 101 ) and a covering element (28, 72,123) that seals one end of the wall element (12, 61, 101), - a sealing element (36, 92, 112) that seals the other end of the wall element (12 , 61, 101), and - a transmission element (20, 64, 108) arranged in the storage tube, characterized in that - the storage tube and the sealing element (36, 92, 112) are made of metal , - the transmission element (20, 64, 108) rests inside the storage tube and, at the end of the transmission element (20, 64, 108) which is located on the sealing element (36, 92 , 112), has a support surface (22, 66, 110) that supports the sealing element (36, 92, 112), and said support surface (22, 66, 110) is arranged transversely to an axis of symmetry of the wall element (12, 61, 101), and - the sealing element (36, 92, 112) is disc-shaped, and is pressed along its entire circumference in a liquid- and gas-tight manner in the inner surface of the wall element (12, 61, 101).

Description

DESCRIPTION

Storage device, container equipped with same and manufacturing procedure of the storage device

TECHNICAL SECTOR

The invention relates to a storage device sealed in a liquid and gas-tight manner, to a container provided with the storage device and to a method for manufacturing the storage device.

STATE OF THE PREVIOUS TECHNIQUE

The storage of two-component products, for example, polyurethane foams, aerosols, automotive paints and varnishes, hair dyes, chemical products, specifically household chemicals, pharmaceuticals, cosmetics, etc. it often raises problems related to the storage of the second component. A series of known solutions are aimed at overcoming these problems.

In WO 2007/122001 A1, there is disclosed an arrangement adapted to store and mix materials of two components, and comprising an inner container and an outer container, in which the contents of the inner container can be mixed with the medium contained in the outer container after the closure cap of the inner container is removed. WO 2007/122001 A1 discloses a solution comprising a pressure equalization zone arranged in the wall of the inner container. The pressure equalization zone is formed by means of an elastic film placed in a window formed in the wall of the inner container. In the document, several different sealing solutions are described for separating the contents of the inner container from the contents of the outer container. The separation is provided by a film that is adhered to the end section of the inner container that applies several rings. The film can be removed from the end section of the inner container by a pushing mechanism disposed in the container, either by removing the film together with the rings, or by cutting it by applying a circular drilling tool disposed at the end of the mechanism. push.

In the U.S.A. Patent 8,157,130 B2, an arrangement consisting of an inner container and an outer container is disclosed. According to this solution, the inner container is capable of storing a liquefied gas fuel. The wall of the inner container is made of an easily deformable metal. The outer container surrounding the inner container is filled with high pressure gas, so that the inner container wall is deformed by the high pressure gas as the inner container gradually empties. A support element is arranged in the inner container to prevent the cylindrical container from deforming in its end section, but only in the side walls. The solution of the U.S.A. 8.157.130 B2 is not able to mix the materials stored in the inner and outer containers, since, according to the solution disclosed in the patent, mixing the contents of the outer and inner containers is not desirable.

WO 01/30668 A1 discloses an arrangement capable of mixing two components, wherein the lid separating the inner container from the outer container can be removed by a pushing mechanism extending through the inner container. The covering element that separates the inner and outer containers can be eliminated by means of a pushing mechanism also in the solutions disclosed in U.S. Pat. 4,651,899, U.S.A. 6,675,993 B2 and U.S.A. 8,403,177 B2.

In the U.S.A. Patent 8.403.177 B2 presents a solution that applies an outer and inner container, in which the wall of the inner container is resistant to pressure with a wall thickness of 0.3 mm to 0.8 mm, while the thickness of Suggested wall is 0.05 mm to 0.1 mm in the membrane. Said membrane guarantees the equalization of the pressure, covers the upper end of the cylindrical container and is arranged in the connection with the outer container. WO 2006/069458 A1 discloses a container suitable for storing multiple components, wherein the closure cap of the inner container is snapped into the neck of the inner container. Similar provisions are disclosed in U.S. Patents. 2,793,776 and WO 84/01355 A1.

Provisions permitting the removal capacity of the separation wall of a two-compartment container are disclosed in U.S. Pat. 3,603,483 and U.S.A. 3,799,398.

In EP 2 062 616 A1, there is disclosed an arrangement comprising an inner container and an outer container, wherein the closure cap sealing the inner container is pushed between protrusions formed in the inner wall of the inner container. In EP 0042 128 B1 there is disclosed a closure cap that separates an inner container from an outer container and that can be separated by applying a threaded spindle. According to US Pat. No. 5,638,992, an outer container is separated from an inner container by a snap-in stopper. Other storage elements capable of storing and mixing two components are disclosed in EP Patents 1943164 B1 and US 8,595,502 B2.

A common drawback of the known solutions is that both the sealing and the drainage of the inner container are cumbersome or the gasket is not sealed to liquids or gases, also, in several solutions, the equalization of the pressure between the inner and outer containers It is not planned or it is cumbersome.

In view of the known solutions, there is a demand for a storage device, a container provided with the storage device and a method for manufacturing the storage device, wherein the sealing of the storage device is implemented in a simple manner and Stagnates to liquids and gases.

DESCRIPTION OF THE INVENTION

The main objective of the invention is to provide a storage device, a container provided with the storage device, and a method for manufacturing the storage device that does not have the drawbacks of prior art solutions to the greatest extent possible.

Another object of the invention is to provide a storage device, a container provided with the storage device, and a method for manufacturing the storage device, in which the sealing element of the storage device is implemented in a simple and leak-proof manner. liquids and gases, while it can be easily removed.

The objects of the invention can be achieved by the storage device according to claim 1, the container according to claim 11 and the method according to claim 14. Preferred embodiments of the invention are defined in the dependent claims.

BRIEF DESCRIPTION OF THE DRAWINGS

Next, preferred embodiments of the invention are described by way of example, with reference to the following drawings, in which

Figures 1A to 1D are drawings, in section, showing the storage device according to the invention and the method for sealing the storage tube of the storage device,

Figure 2 is an enlarged detail of Figure 1 A,

Figure 3 is an enlarged detail of Figure 1C,

Figure 4 is a spatial drawing of an embodiment of the device according to the invention,

Figures 5A to 5D show the storage device according to the invention, as well as another embodiment of the method for sealing the storage tube, in which the storage device is attached to the cover or to the lower plate of the container,

Figure 6 is a drawing, in section, showing the joining of an embodiment of the storage device to the lower plate of the container,

Figures 7 and 8, respectively, are drawings, in section and in space, showing another embodiment of the storage device according to the invention,

Figures 9 and 10, respectively, are drawings, in section and in space, showing how the embodiment presented in Figures 7 and 8 is carried out,

Figures 11, 12 and 13, respectively, are drawings, in section and in space, showing another further embodiment of the storage device according to the invention, and

Figures 14 and 15, respectively, are drawings, sectional and spatial showing the operation of the embodiment shown in Figures 11, 12 and 13.

MODES FOR CARRYING OUT THE INVENTION

The storage device according to the invention is adapted to store a liquid, and can be applied in a particularly advantageous manner for its disposal in a container containing a liquid and / or a gas. The invention also relates to a method for manufacturing the storage device.

Next, the procedure for manufacturing the storage device is presented first, since by going through the process steps it is also possible to understand the characteristics of the storage device. In one embodiment, the steps of the method according to the invention are shown in Figures 1A to 1C.

To manufacture a storage device -10- shown in Figure 1C, a storage tube and a sealing element made of metal is applied. The storage tube has a wall element -12-cylindrical and a covering element -28- which seals an end of the wall element -12-. By carrying out the steps for the process according to the invention, the sealing element -36- shown in Figure 1C is obtained from a preform -18- of sealing element.

In the course of the method according to the invention, a transmission element -20- is placed in the storage tube, and a sealing element -36- is disposed at the other end of the wall element -12- as described in FIG. continuation. In the step of Figure 1A, the transmission element -20- rests on the inside of the storage tube, said transmission element -20-, at the end of the transmission element -20- that is in the storage element. a seal -36-, a support surface -22- supporting the sealing element -36- (shown in figure 1C), and the bearing surface -22- is arranged transversely to an axis of symmetry of the wall element - 12-; and, by applying a force parallel to the axis of symmetry of the wall element -12-, a conical preform -18- of sealing element is pushed against the bearing surface -22-, thereby deforming the element preform -18- of sealing until a sealing element -36- is obtained in the form of a disc, which is pressed along its entire circumference in a leak-tight manner to liquids and gases inside the interior surface of the wall element -12-. The term conical is used in this document to refer to either conical, frustoconical or hemispheric.

In Figure 1A, the sealing element preform -18- is separated from the wall element -12-. In the stage shown in Figure 1B, the sealing element preform -18- is placed on the bearing surface -22- of the transmission element -20-, when the transmission element -20- is supported on the tube storage. In Figure 1C the completed storage device is shown; the drawing shows a projection -32- extending around the outer surface of the wall element -12-, and produced when the sealing element -36- is pressed against the inner surface of the wall element -12-.

Figure 1C shows the storage device -10- sealed. As mentioned above, the storage device -10- comprises a storage tube having a wall element -12-cylindrical and a covering element -28- which seals an end of the wall element -12-. The storage device further comprises a sealing element -36- which seals the other end of the wall element -12-, and a transmission element -20- disposed in the storage tube. As described above, the storage tube and the sealing element of the storage device according to the invention are made of metal. In Figure 1C, it is shown that the storage device has a transmission element -20- of this type that is supported on the storage tube, the transmission element -20-, at the end of the transmission element -20 - which is in the sealing element -36-, a bearing surface -22- supporting the sealing element -36-, and the bearing surface -22- is arranged transversely to an axis of symmetry of the wall element - 12-; in addition, the sealing element -36- is disc-shaped, and is pressed along its entire circumference in a manner that is leak-tight to liquids and gases inside the interior surface of the wall element -12-.

In the embodiment of Figure 1C of the storage device according to the invention, the transmission element -20- comprises a support element -26- supported by the cover element -28-, and a transmission rod -21- that connects the support element -26- with the support surface -22-. It is shown that, in this embodiment, with respect to the operation of the transmission element, the covering element -28- is formed as a tube end, that is, it has a protruding part in which the end section of the element extends. support -26- of the transmission element -20-, and a flange portion, on which the portion of the support element -26- extends laterally with respect to the axis of symmetry of the wall element -12-.

Also, in Figure 1C it is shown that the sealing element -36- comprises a thrust member -35-arranged around its center, and a sealing layer -37- arranged concentrically around the thrust member and having a thickness less than the thickness of the thrust member -35-, and is arranged concentrically about the thrust member -35-. In Figures 1A and 1B, it is shown that the sealing element preform -18- obviously also has a thrust member -17- and a sealing layer -19-, and the sealing element preform -18- receives its conical shape of the configuration of the push member -17- and of the sealing layer -19- shown in figures 1A and 1B. The sealing layer -19- is attached to the pushing member -17- in the manner shown in FIG. 1A, such that the sealing element preform -18- has a smaller diameter than the sealing element -36- ; whereby, the preform -18- of sealing element can be introduced into the internal space of the wall element -12- as shown in figure 1B (whose inner diameter is larger only slightly larger than the diameter of the preform -18- of sealing element). The sealing element preform 18 is dimensioned in such a way that after it has been pressed against the bearing surface 22, its diameter is greater than the inner diameter of the wall element 12, so it is pressed against the inner surface of the wall element -12- and, therefore, a projection -32- is produced on the outer wall of the wall element -12- due to the wall thickness of the wall element -12-. Inward pressure along the entire circumference is ensured by proper centering of the limbs.

Under the force of the pressure, therefore, the conical preform -18- of sealing element flattens, while its diameter increases. Under the force of the pressure, therefore, the edge of the sealing element preform -18- rests against the inner surface of the wall element -12- and deforms it locally.

In Figures 1A to 1C, it is also shown that, in this embodiment, the wall element -12- comprises a first portion -16- of the wall element of a first thickness and a second portion -14- of the wall element of a second thickness, which is disposed at the end of the wall element -12- that is in the sealing element - 36-, in which the second thickness is greater than the first thickness, and the sealing element -36- is pressed against the second portion -14- of the wall element.

In FIGS. 1A to 1C, it is also shown that, in this embodiment, a through opening 24 is formed by a sealing sheet 30 on the covering element 28. The wall element -12-, the covering element -28- and the sealing sheet -30- are preferably made in one piece. The sealing sheet can be a metal film or a plastic sheet such as that conventionally applied to seal storage tubes, whose film or sheet can be broken by an actuating element which is described below. In Figures 1A to 1C, it is shown that, in this embodiment, the passage opening -24- is formed in a conical end section with respect to the storage tube. As shown in FIG. 1D, this end section preferably comprises a threading on its outer surface and, therefore, the end section can be closed, for example, by a threaded closure cap applied in addition to or, optionally, in place of the sealing sheet -30-. In addition, the threaded end section can be applied to attach the storage device to a container as described below.

In Figures 1A to 1C, it is shown that the first portion -16- of the wall element extends to a much larger part of the wall element -12- than the second portion -14- of the wall element, so that the wall element -12- is mainly characterized by the thickness of the first portion -16- of the wall element. The second portion -14- of the wall element, preferably, extends only to the end section of the wall element -12- which receives the sealing element -36-, so that the sealing element -36- can be pressed against a much thicker portion.

In some embodiments, the second thickness is equal to 1.5 to 10 times, preferably 2 to 5 times the first thickness. The first thickness is, for example, between 0.05 mm and 0.2 mm, preferably between 0.08 mm and 0.12 mm, and, more preferably, it is 0.1 mm. The above dimensions imply that the wall element -12- has a thickness of 0.1 mm along almost its entire length, and becomes thicker only at its end section, near the sealing element -36-, for allow the most preferred connection between the sealing element -36- and the wall element -12-. In the case of the above thicknesses, the characteristic thickness of the covering element is approximately between 0.5 mm and 1 mm.

The second wall portion extends along the wall element 12 to a length of about 5 mm in case a storage device having usually applied dimensions is applied. Preferably, there is a wall portion of varying thickness between the first wall portion and the second wall portion, along which the thickness of the wall decreases from the thickness of the second wall portion to the thickness of the first wall portion. wall portion. This wall portion of variable thickness extends along approximately a section of 10 mm in length. For example, approximately 80% of the wall element belongs to the first wall portion, that is to say, it is particularly preferably about 0.1 mm thick.

In case the thickness of the wall element -12- is in the ranges specified above, the wall element -12- can be formed by applying cold fluid, that is, by applying a manufacturing process in series. The variable thickness wall element can be manufactured by cold flow by applying an appropriately configured flow ring. In some embodiments of the invention, the wall element and / or the sealing element are made of aluminum, copper or zinc.

According to the invention, both the wall element - the entire storage tube - and the sealing element are made of metal. Therefore, a metal-to-metal seal is made when the preform -18- of sealing element is pressed against the inner wall of the wall element -12-. To press the preform -18- of sealing element against the inner surface of the wall element -12-, a force must be applied such that it presses the sealing element -36- against the roughness of the surface of the wall element -12 -; applying a force of such magnitude, a watertight seal is made to liquids and gases. The thickness of the sealing layer -19- of the sealing element preform -18- is preferably in the range between 0.5 mm and 1 mm. The thickness of the push member -17- is greater than that, being preferably 2 to 3 times greater than the thickness of the sealing layer -19-. A preform -18- of sealing element having these thicknesses is pressed against the wall element -12- by applying a force, preferably, from 100 to 500 N, particularly preferably approximately 300 N; the force is preferably applied to the pushing member -17-. The application of such a force is necessary in particular to flatten the conical preform 18 of the sealing element, but it is also sufficient to press the sealing element 36 obtained from the preform 18 of the sealing element against the seal. interior surface of the wall element -12-, providing a watertight seal to liquids and gases. The application of a metal-to-metal seal makes the use of sealing materials unnecessary. Since the sealing element -36- is disc-shaped, it can be pressed against the interior surface of the wall element -12- in a circular manner, that is to say along its entire circumference.

In Figure 1D, it is shown that the sealing element -36- can be eliminated from the end section of the wall element -12- by actuating the transmission element -20-. With this, the liquid contained in the internal space -34- of the storage device, shown in Figure 1C, can be removed therefrom, and, in case the storage device is arranged in a container, the contents of the device. Storage can be mixed with the contents of the container. The storage device according to the invention can be applied for the storage of a second component inside a container. It is shown, by configuring the sealing element according to the invention, that the second component can be easily drained from the storage device. A preferred application of the storage device for two-component fluid systems is shown in Figure 6. The transmission element 20 can be put into operation (i.e., pushed towards the end of the wall element which is fitted with the sealing element) preferably by applying a driving element, as shown in Figure 5D. In Figure 1D, it is shown that as the sealing element -36- is removed, the wall element -12- expands along a portion -38- as the sealing element -36- of Larger diameter is pushed outwards.

In some embodiments, the necessary displacement of the transmission element 20 can also be carried out by applying a rotating member attached to the threaded end section of the passage opening.

As clearly shown in FIG. 1D, the width of the bearing surface 22 is preferably a little smaller than the diameter of the sealing element 36. In case said dimensions are applied, the transmission element can preferably be slid freely in the internal space of the wall, but this small difference in size does not affect the function of the support surface -22- during the pressing of the preform -18- of sealing element. In order to allow the pressing of the sealing element preform 18, the bearing surface 22 preferably has a circular face, but it can also be considered a polygonal configuration (hexagonal, octagonal, etc.).

Figure 2 shows an enlarged detail of figure 1A, showing the portion of the wall element -12- close to the sealing element, towards which the preform -18- of sealing element moves. The second portion -14- of the wall element having a greater thickness than the first portion -16- of the wall element, as well as the pushing member -17- and the sealing layer -19- of the preform -18- of sealing element are particularly well shown in Figure 2.

Figure 3 shows the sealing element -36- pressed against the inner surface of the wall element -12- in greater detail compared to Figure 1C. In Figure 3, a gap is shown extending between the sealing element -36- and the bearing surface -22-. Depending on the magnitude and dynamics of the force applied to the pressing, as well as the elasticity of the preform -18- of the sealing element and of the bearing surface -22-, said gap can also be formed during the pressing of the element of sealing -36-. In Figure 3 it is shown that stiffening members -42- are provided, to provide a sufficiently strong connection between the transmission rod -21- and the bearing surface -22-, at the connection of the transmission rod -21- and the support surface -22-. In the embodiment shown in Figure 1C, the support element -26- is constituted by similar stiffening members.

Figure 4 is a spatial drawing of the embodiment of Figure 1C. The figure shows a circular protrusion -32- extending along the circumference of the end of the wall element -12- adjoining the sealing element -36- which is formed as a result of the pressure of the sealing element -36- , as well as the sealing element -36-, obtained from the preform -18- of sealing element, with a thrust member -35- projecting from its central portion. The thread -44- belonging to the passage opening is shown in the figure at the end of the wall element opposite the sealing element -36-.

Figures 5A to 5D show the preparation of the seal, ie the pressure of the sealing element -36-, in an embodiment in which the storage tube is attached to the cover plate or to the bottom plate of a container. In the drawing, it is shown that the storage tube is fixed to the cover plate -46- of the container by a transmission part -50-. According to the present embodiment of the storage device, in a manner similar to the embodiment shown in Figure 1C, a through opening -24- sealed by a sealing sheet -30- is formed in the covering element -28-. In this embodiment, in addition, a drive element -48- adapted to pierce through the sealing sheet -30- and to eliminate the sealing element -36- which cooperates with the transmission element -20-, is connected to the passage opening -24-. In Figure 5C, it is shown that the threaded outer surface of the passage opening of the storage device -10- is threaded in the corresponding portion of the transmission part -50- to fix the storage device -10- and the transmission part -50-. The transmission part -50- may be connected to the cover plate -46- of the container in various known ways.

In figures 5A to 5C the method of pressing the preform -18- of sealing element in the storage tube is shown, while figure 5D shows the extraction of the sealing element -36- of the storage tube. Figure 5A shows how the transmission element -20- is inserted into the tube storage and also shows the preform -18- of sealing element next to the storage tube.

In Figure 5B, the sealing element preform -18- is pressed against the bearing surface -22-, but the pressure of the sealing element preform -18- against the interior surface of the wall element -12- still It has not begun. In Figure 5B it is shown that, in the present embodiment, the sealing element preform -18- has a width greater than the bearing surface -22-. Consequently, the sealing layer -19- hangs laterally from the bearing surface -22-, the component forming the bearing surface -22- extending towards the "dome" defined by the sealing element preform -18-.

In Figure 5C, a sealing element -36- is shown pressed, that is, in Figure 5C, it is the storage device -10- which is fixed by means of the transmission part -50- to the corresponding part of the container. As shown in FIG. 5C, the end of the actuating element -48- extends towards the passage opening -24- (ie, it is connected to the passage opening -24-). In the state shown in FIG. 5C, the end of the actuating element -48- does not reach the sealing sheet. The drive element -48- may be supported in a known manner in its position shown in Figure 5C. From the position shown in FIG. 5C, the actuating element can be moved, and brought to the position shown in FIG. 5D, by exerting a force-suitably low-on it.

When the actuating element -48- is displaced downwards, it passes through the sealing sheet -30- as shown in figure 5D, bears against the end section of the support element -26- and pushes the transmission element - 20- down. The bearing surface of the transmission element moving downwards pushes the sealing element -36- pressed against wall element -12- from the storage tube, whereby the end of the wall element -12- proximate to the element of sealing -36- is released. Since the end of the actuating element -48- shown in the upper part of the drawing is accessible from the outside of the container, the contents of the storage device -10- can be drained in the container surrounding the storage device -10- by applying the drive element -48- as shown in Figure 5D.

According to the above description, certain embodiments of the invention are related to a container adapted to store a gas and / or liquid, in the internal space of which a storage device according to the invention is arranged. Said embodiment of the invention is shown in Figure 6.

In the embodiment shown in Figure 6, the storage device -10- is preferably attached to a lower portion -54- of the wall of a container -52- by applying a transmission part in a manner also shown in Figure 5C. In the embodiment of Figure 6, the container comprises a distribution unit -51-. In the embodiment of Figure 6, the two-component material to be dispensed is obtained, preferably before using the distribution unit -51 - for the first time, by eliminating the sealing element -36- of the storage device -10- using the transmission part -48-, thus allowing the material retained in the internal space of the storage device -10- to mix with the material contained inside the external container -52-. To facilitate mixing, it may be convenient to shake the container -52-, after which the mixed material can be dispensed from the container -52- by applying a distribution unit -51-. In the embodiment of the container shown in Figure 6, the actuating element -48- can be operated from the outside of the container -52-.

In other embodiments, the storage device -10- is attached to the wall of the container.

As the container is filled with gas or liquid, the wall element of the storage device disposed in the container is deformed in a manner that depends on the amount of air trapped in the storage device during filling and the pressure of the storage device. container in case the first portion of the wall element has the thickness value specified above. In this way, due to the permanent deformation, the pressure equalization between the container and the storage device occurs in case the values of wall thickness specified above are applied. In the case of said wall thickness values, the wall element is deformed with a pressure difference as low as approximately 100 mbar (the pressure equalization occurs) and, therefore, by the application of an element of wall having a suitable thickness, the metal-to-metal joint in the sealing element is freed of load. In order that the equalization of the pressure occurring is centered on the wall element, the wall element can be flattened or grooved, preferably to a certain extent after the introduction of the transmission element. The bearing surface of the transmission element establishes that said flattening extends only to the wall element and does not affect the sealing element. In case the storage device described above is applied, other means to provide a pressure equalization are not necessary.

In one embodiment, the transmission element -20- is preferably formed such that a transmission rod -21- connects the support surface -22- and the support element -26- thereof. This arrangement has the advantage that, in spite of the deformations described above that occur during pressure equalization, the material contained within the interior of the storage device can be drained, since the transmission rod -21- is separated from the wall element -12- by a recess. For this reason, in the case of the characteristic deformations of the pressure differences that usually occur, the wall element -12- that deforms does not reach the transmission rod -21-, that is to say, does not impede its displacement. In the event that a transmission element 20 of this configuration is applied, the sealing element 36 can be eliminated even in the event that the wall element 12 is deformed.

Figures 7 to 15 show other embodiments - storage devices -60- and -100- - of the storage device according to the invention. By arranging the storage devices -60- and -100- in the same container, a container capable of containing three or four components, or, continuing with the arrangement according to figures 7 to 15, a container can be provided to contain even more components . In these embodiments of the invention, the storage device comprises more than one transmission element, a separation element is arranged between additional sealing elements pressed against the wall element, said separation element resting against a supporting surface of one of the neighboring transmission elements and against the support element of the other of the neighboring transmission elements, and at least one opening is formed in the wall element between the additional sealing elements.

Figures 7 and 8 show the storage device -60- according to an embodiment of the invention. The storage device -60- comprises a wall element -61-, two transmission elements -64- arranged in a storage tube comprising a cover element -72-; said transmission elements -64- are configured similarly to the transmission element -20- of the storage device -10- according to figure 1C. Accordingly, both transmission elements 64 comprise a bearing surface 66, a support member 70 and a transmission rod 63 that connects the bearing surface 66 with the support member 70. -

In figure 7, it is shown that a separation element -80- is arranged between additional sealing elements -62-, -82- pressed against the wall element -61-, said separation element -80- is supported against a support surface 66 of the transmission element 64 shown on the right side of the figure and against the support element 70 of the transmission element 64 shown on the left side of the figure. Inside the storage device -60-, the sealing element -62-, the separation element -80- and the sealing element -82- constitute a block. The separation element -80- has a bearing surface for supporting the sealing element -82-, and separation feet to provide the necessary separation, resting on the sealing element -62- close to the pushing member thereof. Due to said arrangement of the separation element, the block comprising the sealing elements -62-, -82- and the separation element -80- defines an additional and independent internal space compartment inside the storage device -60 - In the storage device -60-, in addition to that, internal space compartments -65-, -85-, adapted to store the liquid components and formed in a manner similar to the compartment -34- of internal space are shown in the figure 1 C.

In this embodiment, multiple openings -78- connecting the additional internal space to the outer space of the storage device -60- are formed in the wall element -61- between the additional sealing elements -62-, -82-.

At the end of the wall element -61- distal to the cover plate -72-, a sealing element -92- is pressed against the storage tube. The wall element -61- comprises a wall section -88- of greater thickness in the place where the sealing element -92- is pressed, and has a projection -94- that extends along the entire length of the wall. circumference of the outer surface of the section -88- that is formed in said outer surface due to the pressure of the sealing element -92-. Similarly to the sealing element -36-, the sealing elements -62-, -82-, -92- also have thrust members and sealing layers.

In figure 7, it is shown that the cover element -72- has a passage opening -74- in which a sealing sheet -68- is arranged. The outer surface of the end section comprising the passage opening -74- is fitted with a threading.

In Figure 8, as a result of the pressure of the additional sealing elements -62-, -82-, it is shown that respective projections -76-, -90- are formed on the outer surface of the wall element -61-. The sealing element -92-, pressed against the end section of the wall element -61-, is also shown in figure 8.

The manufacture of the storage device -60-, that is, the pressure of the sealing elements -62-, -82-, -92-, is very similar to the way of pressing the sealing element -36- of the embodiment shown in Figure 1C; the shaping of the storage device -60- differs only in that the individual components must be introduced into the storage tube in the correct order, and that multiple pressing operations are necessary. Accordingly, the storage device -60- is manufactured by carrying out the following steps. First, the transmission element -64-, shown to the left of the figure, is inserted into the storage tube, and then a sealing element preform is placed. on the support surface of the transmission element -64- inserted and, pressing the preform against the wall element, the sealing element -62- is obtained. Then, the separator 80 is placed on the sealing element 62. The sealing element -82- is then formed by pushing another preform of sealing element against the bearing surface of the separation element -80-, and pressing the sealing element preform against the inner surface of the wall element -61- . Subsequently, the next transmission element -64- is introduced into the storage tube and, with the help of the support surface of the transmission element -64-, a sealing element -92-, manufactured from a preform of sealing element, can be pressed against the portion of the wall element -88-.

The storage device -60- can be manufactured by carrying out the previous steps due to the fact that the sealing element preform has a smaller diameter than the sealing element, and, therefore, can slide inside the element of wall -61- in a manner similar to the embodiment shown in Figure 1C. The embodiment shown in figures 11 to 13 is performed analogously to the process described above.

Figures 9 and 10 show the operation of the embodiment shown in Figures 7 and 8, that is, the manner in which the liquid is drained from the compartments of the internal space -65-, -85- shown in Figure 7 Before the operation begins, the space surrounding the separation element -80- can be washed through the openings -78-. The arrangement of the storage device -60- allows the compartments of the internal space -65-, -85- to be emptied simultaneously. In Figure 9, an arrow in the passage opening -74- indicates that the transmission element -64- is pushed out of the cover element -72-, preferably by applying a drive element. To assemble the storage device -60-, it is necessary that the two transmission elements -64-, the additional sealing elements -62-, -82- and the separation element -80- rest against each other, ie , touch each other and are tight in the storage device -60-. Consequently, as the transmission element -64- shown to the left in the drawing moves to the left, the block consisting of the additional sealing elements -62-, -82- and the separation element -80 - also moves along with the transmission element -64- on the left side. As a consequence, the sealing element -92- is pushed towards the outside of the storage tube by the bearing surface -66- of the transmission element -64- on the left side. Next, the compartments of the internal space -65-, -85- can be completely washed through the openings -78-, for example, by shaking the container containing the storage device -60-.

As shown in Figure 9, the additional sealing elements -62-, -82- are displaced, but preferably, do not leave the storage tube. In figures 9 and 10, the arrows pointing outwards from the openings -78- indicate that, as a result of the displacement of the sealing element -62-, the liquid contained inside the internal space compartment -65- that shown in Figure 7 can exit the storage tube through the openings -78- and, thus, is drained in the space surrounding the storage device -60-. The liquid contained in the internal space -85- of Figure 7 leaves the storage tube at the end of the storage tube that has been released by the elimination of the sealing element -92- (as shown by the arrows in FIG. figure 7). In figures 9 and 10, it is shown that, due to the displacement of the sealing elements -62-, -82-, -92-, the wall element -61- expands along the portions -96-, -98-.

Figures 11, 12 and 13, respectively, show views, in section, disassembled, and spatial views of yet another embodiment of the invention, i.e., a storage device -100-. The configuration of the storage device -100- is very similar to the storage device -60-, but there are three parts of the internal space -105- separated inside the storage device -100-. The storage tube of the storage device -100- comprises a wall element -101- and a cover element -123-. Three transmission elements -108- are arranged in the storage device -100-. The transmission elements -108- have respective support surfaces -110- and support elements -107-. Additional sealing elements -102-, -106-, as well as a sealing element -112- are arranged in the storage tube of the storage device -100-. The separation elements 104, which operate analogously to the separation elements 80, are arranged between the additional sealing elements 102, 106. The separation elements 104 have support surfaces, but their separation legs rest on the thrust member of the additional sealing elements 102. Figure 11 shows a transmission part connected to the threading of the end section of the passage opening, by means of which the storage device -100- is connected to the portion of the container -112-. An actuating element -118-, adapted to break the sealing sheet of the passage opening, and to move the transmission element -108- shown to the left of the drawing - and, therefore, also to move the other transmission elements -108- together with the additional sealing elements -102-, -106- and the separation elements-, is arranged in the transmission part. In a manner similar to how the storage device -60- is configured, the openings -109- are placed along the block constituted by the additional sealing elements -102-, -106- and the separation elements, such so that the compartments of the internal space -105- can be emptied by operating the actuating element -118-. The compartment of the internal space -105- adjacent to the sealing element -112- can be emptied through an opening formed by eliminating the sealing element -112-.

Specific details of the arrangement of the storage device -100- are shown in figures 12, 13. As a result of the pressure of the sealing elements -102-, -106-, -112-, protrusions -114- are formed, -116-on the exterior surface of the wall element -101-. Figure 12 also shows the structure of the transmission elements -108-.

Figures 14, 15 show the process of draining the compartments of the internal space -105- shown in figure 11. The parts of the internal space -105- can be emptied by operating the actuating element -118-. When the actuating element -118- is pressed, the transmission elements -108- are displaced, and the end of the storage tube next to the sealing element -112-, as well as the openings -109-, are released. As a result of the displacement of the sealing elements -102-, -106-, -112-, the wall element -101- expands along the portions -124-, -126-.

In the embodiments presented in Figures 7 to 15, the compartments of the internal space of the storage devices 60, 100 are preferably filled with so-called dilute flowing materials, ie, materials that are sufficiently diluted to allow them to be drained from the internal space compartments by applying the drive element. However, the internal space compartment -105- sealed by the sealing elements -85-, -112- may contain a material of higher viscosity.

To make the wall element durable enough, the maximum diameter of the openings -78-, -109- may conveniently be half the applied displacement value.

The invention, of course, is not limited to the preferred embodiments described in detail above, but variants, modifications and further developments are possible within the scope of protection determined by the claims.

Claims (14)

Storage device for storing a liquid and, specifically, for the arrangement in a container comprising a liquid and / or a gas, said storage device comprising - a storage tube having a cylindrical wall element (12, 61, 101) and a cover element (28, 72,123) that seals an end of the wall element (12, 61, 101), - a sealing element (36, 92, 112) that seals the other end of the wall element (12, 61, 101), and - a transmission element (20, 64, 108) disposed in the storage tube, characterized by that - the storage tube and the sealing element (36, 92, 112) are made of metal, - the transmission element (20, 64, 108) is supported on the inside of the storage tube and, at the end of the transmission element (20, 64, 108) located on the sealing element (36, 92, 112), has a bearing surface (22, 66, 110) supporting the sealing element (36, 92, 112), and said bearing surface (22, 66, 110) is disposed transversely to an axis of symmetry of the wall element (12, 61, 101), and - the sealing element (36, 92, 112) is disc-shaped, and is pressed along its entire circumference in a leak-tight manner to liquids and gases on the inner surface of the wall element (12, 61, 101 ). The storage device according to claim 1, characterized in that the transmission element (20, 64, 108) comprises a support element (26, 70, 107) supported by the cover element (28, 72, 123). ), and a transmission rod (21, 63, 103) that connects the support element (26, 70, 107) with the bearing surface (22, 66, 110). Storage device according to claim 1 or claim 2, characterized in that the wall element (12, 61, 101) comprises a first portion of the wall element (16) having a first thickness and a second portion of the wall element (16). wall element (14, 88) having a second thickness, and disposed at the end of the wall element (12, 61, 101) that is in the sealing element (36, 92, 112), wherein the second thickness is greater than the first thickness, and the sealing element (36, 92, 112) is pressed against the second portion of the wall element (14, 88). 4. Storage device according to claim 3, characterized in that the second thickness is equal to 1.5 to 10 times, preferably 2 to 5 times the first thickness. Storage device according to claim 3, characterized in that the first thickness is between 0.05 mm and 0.2 mm, preferably between 0.08 mm and 0.12 mm, and is particularly preferably , of 0.1 mm. 6. Storage device according to any of claims 1 to 5, characterized in that the wall element (12, 61, 101) is manufactured by cold flow. 7. Storage device according to any of claims 1 to 6, characterized in that the wall element (12, 61, 101) and / or the sealing element (36, 92, 112) are made of aluminum, copper or zinc. The storage device according to any of claims 1 to 7, characterized in that it comprises a thrust member (35) disposed around the center of the sealing element (36, 92, 112), and a sealing layer (37). ) arranged concentrically around the thrust member (35), and having a thickness less than the thickness of the thrust member (35). The storage device according to any of claims 1 to 8, characterized in that a through opening (24, 68) sealed by a sealing sheet (30, 74) is formed in the cover element (28, 72). , 123), and an actuating element (48, 118) adapted to pierce through the sealing sheet (30, 74) and remove the sealing element (36, 92, 112) by means of driving the transmission element. (20, 64, 108) is positioned in the passage opening (24, 68). 10. Storage device according to any of claims 1 to 9, characterized in that - comprises more than one transmission element (64, 108), - a separation element (80, 104) is arranged between additional sealing elements (62, 82, 106) that are pressed against the wall element (61, 101), said separation element (80, 104) being supported against a support surface (66, 110) of one of the neighboring transmission elements (64, 108), and against the support element (70, 105) of the other of the neighboring transmission elements (64, 108), and - at least one opening (78, 109) is formed in the wall element (61, 101) between the additional sealing elements (62, 82, 106). 11. A container for storing liquid and / or gas, characterized in that a storage device (10) according to any of claims 1 to 10, is arranged in an internal space of the container (52, 56). Container according to claim 11, characterized in that it comprises a distribution unit (58) adapted to distribute liquid and / or gas, and the storage device is connected to the distribution unit (58) or to a wall of the container, preferably to a lower portion (54) of the container wall (52). 13. Container according to claim 11 or 12, characterized in that a storage device according to claim 9 is arranged in the container, and the actuating element (48, 118) can be operated from the outside of the container (52, 56). ). 14. A method for manufacturing a storage device sealed in a liquid and gas-tight manner, comprising the steps of - placing a transmission element (20, 64, 108) inside a storage tube having a cylindrical wall element (12, 61, 101) and a cover element (28, 72, 123) that seals a end of the wall element (12, 61, 101), - providing on the other end of the wall element (12, 61, 101) a sealing element (36, 92, 112), characterized by - applying a storage tube and a sealing element (36, 92, 112) made of metal, - supporting the transmission element (20, 64, 108) inside the storage tube, said transmission element (20, 64), 108), at the end of the transmission element (20, 64, 108) that is in the sealing element (36, 92, 112), a bearing surface (22, 66, 110) supporting the sealing element (36, 92, 112), and said bearing surface (22, 66, 110) is arranged transversely to an axis of symmetry of the wall element (12, 61, 101) and, - pushing, applying a force parallel to the axis of symmetry of the wall element (12, 61, 101), a conical preform (18) of sealing element against the bearing surface (22, 66, 110), thereby deforming the preform (18) of sealing element until a disk-shaped sealing element (36, 92, 112) is obtained, which is pressed along its entire circumference in a leak-tight manner to liquids and gases on the inner surface of the wall element (12, 61, 101).