MXPA99008810A - Non-refilling devices for containers - Google Patents

Abstract

An in-bore non-refilling device for a bottle of fine spirits has a valve member (16) in the form of a regular dumbbell, with conical ends (62) arranged back-to-back and joined by a central shaft (63) at their apices. The housing (12) of the device has its bottom end closed by an annular bucket (14) which is snap-engaged into position, and each of the conical ends of the valve member has a toroidal free edge which is capable of making sealing engagement with a complementary surface (22) formed around the bucket aperture.

Description

NON-REFILLABLE DEVICES FOR CONTAINERS This invention relates to non-refillable devices for liquid containers such as fine spirits. The invention relates especially (but not necessarily) to those devices, which are designed to be received substantially or completely in the region of the mouth of the container; for brevity they are called, consequently, later here, "non-refillable devices adaptable to a hole". The non-refillable devices adaptable to a hole can be used in association with a capsule or closure, which has a generally flat crown that overlaps the mouth of the container, and a tubular skirt, which hangs peripherally from the crown and is adapted to encompass the outer side of the container with the non-refillable device. Frequently, the capsule is made of thin metal, and in order to removably attach the container it has threaded formations laminated on its skirt, when in its position placed on the container. The threads are automatically shaped to place the threads on the container to provide the required threaded coupling between the two.

Usually, at the same time as the thread is formed, the free end of the skirt is flattened inwardly under an annular rim of the container so that, in combination with a line of weakness formed around the skirt forms a band against tampering or safety . When the closure is screwed for the first time, this band is separated from the rest of the closure, thus leaving visual evidence that an attempt has been made to open the container. A closure of this type is usually known as ROPP (Roll-On PilferProof). At the same time such an arrangement, which evidences tampering, can provide a high degree of safety for a ROPP closure, it may be possible for a potential tamper to remove the closure, leaving the tamper evident band intact, and reinstall the close to its original visual state after adulterating or otherwise changing the liquid content of the container. It is intended that non-refillable devices adaptable to an orifice avoid this possibility by preventing the addition of a liquid or solid substance through the mouth of the container.

Some of the first proposals in non-refillable devices adaptable to an orifice, are shown in the US Patent Publications US 4258854, GB 2026428A and WO 96/04179. From these and other similar publications, it will be noted that the device essentially comprises a hollow housing, which can be placed under pressure in the mouth of the container and be properly retained in position, and a valve member received and maintained in a manner mobile captive within the housing capable of being coupled to a valve seat provided by the housing, to prevent an adulterant from being introduced into the container, but which at the same time allows the flow of liquid in the other direction for distribution in a normal manner. In WO 96/04179, the device has a closure disc having a peripheral margin which is arranged to overlap the edge of the container in airtight relationship and is capable of being coupled to its free edge with a closure or capsule, so that the device and the closure or capsule can be applied as one, when the container is initially closed in the bottling plant. The closure disc is removably attached to the housing of the device, so that the removal of the closure or capsule also removes the disc, leaving the housing with the valve member still retained in the container. Furthermore, in WO 96/04179, the housing is arranged to provide a valve protection, by which direct access to the valve member is prevented by means of an implement (for example pliers or wire) or a water jet in the attempt to dislodge the valve member. A further proposal for a non-refillable device - adaptable to a perforation is described and claimed in the GB Patent Specification No. 2008531B owned by the applicants hereof. In that specification, the device has a housing, a valve member and a valve protection as discussed above. It also has an additional tamper feature, an arrangement of the housing in two parts, which are formed integrally by franqueables bridges. Any attempt to remove the device from the container, for example by coupling a hooked wire with the accessible upper part of the device, will result in the breaking or breaking of the bridges, leaving evidence of tampering. In US1994625, the valve head of a non-refillable device is conical, tapering inwardly and downwardly to engage a valve seat flared upwardly. To control movement between its open and closed positions, the valve member has a blind central hole formed in the upper face of the valve head, towards which an axially placed guide pin, fixed to the valve housing can move relatively , and a stop element is suspended below and a spacing of the valve head by a central support rod. The stop element has the shape of a tapered head low and inward, which is able to locate the coupling with the flared portion down the housing to determine the fully open position of the valve head when the container is inverted . However, the stop element is not required to act as a valve; in fact, it is deflected by grooves in the housing, which allow the product to pass through the valve seat and advance for distribution. It should be noted especially that in the US1994625 the movable assembly comprising the valve head and the stop element with its associated support rod can not alternatively be used on the upper side downwards, i.e. with the valve head acting as an element of stop, and the stop element acting as a valve head; Furthermore, there is no teaching or suggestion that the assembly could be modified in this way. In addition, there is no teaching or suggestion in US1994625 that the assembly could include ridges to control the flow of the product along it for distribution. The attachments shown and described in Swiss Patent Specification No. 177923 have their valve members arranged to couple a valve seat coupled to the bottom of their housing. The valve members are generally cylindrical, and have associated heavy parts, located at their upper ends to ensure an efficient seal. The ridges formed on the inner side of the housing provide a path for the product to pass to the valve member and the heavy piece for distribution, and again note that the valve members can not be used in their upper side orientation down and have no flanges to control the flow of the product. The present invention seeks to provide a non-refillable device having desirable characteristics, such as the different ones described above, but all integrated together in a form, which in relative terms is inexpensive to mold and easy to assemble, and to apply to a container, and which also provides, in use, a high degree of security against tampering and a satisfactory distribution. According to the invention, there is therefore provided a non-refillable device for the neck of a container, which comprises a valve member held closely captive within a body for hermetic coupling with a valve tape having two heads arranged back to back, characterized in that each head has a circular sealed face, which can alternatively serve to seal or seal against the valve seat and the opposite surfaces of the valve are integrally connected by nets, which are in even number and regularly separated around the valve member. Advantageously, each valve head is generally conical, the conical surfaces of the valve heads are generally spaced apart, opposite each other along the valve member. The valve heads may be joined together by a central axis of substantially smaller cross-sectional dimensions than those of the valve heads.

The nets can end in free edges, which extend linearly between the outer peripheries of the valve heads, but in a preferred arrangement, the free edge of each network is formed of two equal edge portions, oppositely inclined, of so that it forms a triangular projection beyond an imaginary line that joins the valve heads directly together. When the housing is in position on the neck of the container, the outside of the edge portions can cooperate with a corresponding, inclined, inner surface of the housing to determine the distribution position of the valve member in the body and prevent the member from valve is removed by a manipulator. The preferable device includes a closure disc releasably coupled to the outer end of the housing, and having a peripheral margin by which it is permanently engaged with a closure to be located on the neck of the container, when the closure and the device and in closing relationship with the container, the peripheral margin of the closure disc overlaps the container flange, but the closure disc is detachable from the housing, so that the closure can be removed together with the closure disc, leaving the housing and valve member in place for product distribution, the device is characterized by a thin, conformable shoulder projecting outwardly formed around of the housing in a position to be interposed between the rim of the container and the peripheral margin of the closure disc, in a sealed relationship with both the rim of the container and the peripheral margin. Now two embodiments of the invention will be described by way of example with reference to the accompanying drawings. In the drawings: Figure 1 shows a first embodiment of the non-refillable device adaptable to a perforation incorporating the invention in the central vertical section, its right and left halves showing the device respectively as it appears before and after the insertion into the neck of a bottle; Figures 2, 3 and 4 show individual respective components of the first molded device and at least partially in the central vertical section; Figure 5 is a partial view showing part of the fourth component of the first device as viewed from the rear; and Figure 6 shows the second device according to the invention, as it appears in the central vertical section on one side of its central axis.

Referring in the first place to Figure 1 of the drawings, a non-refillable device adaptable to a perforation 10 for a glass bottle of fine spirits, such as Scotch Whiskey is formed of four plastic components, which 12, 14, 16 and 18 were respectively numbered. The device is associated with a capsule or frame 19 of the well-known ROPP variety, and which forms part of a screw-type closure for the bottle as will be described. The capsule is aluminum stamped, and has a generally flat crown 19A and a tubular skirt 19B. Near its free end, the skirt is formed with a circumferential line of weakness 80, formed by separate grooves and defining a band that demonstrates tampering 90. In addition, the retaining rib 24 extending inwardly is formed around from the skirt at a small distance from the crown 19A. The neck of the bottle is represented on the left side of Figure 1, and denoted by the reference numeral 20. On its outer surface, generally cylindrical, it is formed with a stop rib 91 for coupling with the retaining rib 24 on The capsule to define the axial position of the capsule in the application. It is further formed with screw threads 92, a cavity 93 for the weakening line 80, and a flange 94. The four components of the device are: a hollow housing body 12 having an open lower end (as shown), a end closure member 14 snapped onto the lower end of the body 12 and having a central circular hole (in elevation in plan) 21, defined by a valve seat 22, a valve member 16 placed inside the body and captive there by the end closure member for the sealing engagement with the seat d & valve, and a generally flat closure disk 18, press-fitted with the body, but held captive by the capsule 19 by means of the rib 24. The body and the end closure member together form a housing for the valve member. Now follow the more detailed descriptions of components 12, 14, 16 and 18.

The BODY (12) The body 12 injection molded from polypropylene and shown freely in Figure 2. This is generally cylindrical, and has flexible outwardly projecting fins 26, 28 integrally formed around its circumference. Two of these fins (26), near the lower end of the body, are identical and progressively tilt toward their free ends. An additional fin 28 is positioned near the upper end of the body at a substantially greater distance than the uppermost fin 26 than the spacing of the fins 26 itself. This has a smaller diameter than the fins 26, and the transverse body is observed to have a relatively rigid root portion 30, and a much thinner and more flexible external margin 32. The two fins 26 on one side, and the single fin 28 on the other side, are formed on the respective upper and lower parts 34, 36 of the body, which are frankly connected by four breakable bridges 38, of small cross-sectional dimensions. The bridges are formed on four vertical (ie, axially extending) posts 40, which are regularly and widely spaced around the lower part of the body 34 with their bases on approximately the same transverse plane member as the upper flank 42 of. the uppermost flap 26. The spaces 41 between the posts are part of the path of the distribution flow for the whiskey to leave the bottle, as will be described. The bridges 38 are formed on the inner edges of the posts 40, and are attached to the upper part of the body 36 around the base of a conical central portion 44 of the latter. This central portion is imperforate; in the use of the device 10 provides a tamper protection for the valve member 16, its conical top surface 46 tends to bend outwardly from any danger wire or other implement used for tampering. Radially outwardly of the bridges 38 the central portion 44 extends outwardly as a continuous annular flange 48, and four posts 49 spaced apart by spaces 50 rise from the outer periphery of this flange in alignment with the posts 40 of the lower part of the flange. body 34. The posts 49 terminate on the lower flank 51 of the upper flap 28. Above the flap 28, the upper part of the body 36 continues as a short uninterrupted collar 52, which extends upwardly beyond the vertex of the body. the central portion 44 to a free edge 53. This free edge is internally beveled to assist assembly. The lower cavity of the body, within which the valve member 16 will be held captive and movable for distribution, has a restricted throat defined by an upper portion 182 of the inner surface 100 of the lower portion of the body 34 - see Figure 1. The throat is cylindrical and is dimensioned to produce a small space 181 with the valve member as shown. Its upper end is closed - (so as to allow the flow of product) - at the top the franqueable body 36. Beneath the throat, the body cavity widens into smaller and larger frustroconical surfaces 183, 184 as with the upper surface of the hollow piston 14 to form an annular chamber 185, in which the lower free end 64 of the valve member 16 can move for a normal distribution operation. At the bottom of the body 12, below the lowermost flap 26, the lower part of the body 34 is externally formed with a snap-fit rib 54, supported by a control rib 55, the ribs 54, 55 are separated by a release slot 56.

THE EXTREME CLOSURE MEMBER (14) The end closure member (Figure 3) is injection molded from polypropylene to form the housing for the valve member 16 is arranged to press fit on the lower part 34 of the body (12). ) in its ribs 54, 55 as shown in Figure 1. For that purpose, the end closure member has a cylindrical, distensible upper collar, 57, which is internally formed with a snap-in slot 58. The collar it also has an internally beveled free edge 59 to assist the assembly. Beneath the collar 57, the end closure member has a downward and inward, generally rigid and frusto-conical portion 60, which extends upwardly beyond its attachment to the collar as a continuous projected outward tip 61. The frustoconical portion 60 ends at its lower end in the circular hole 21 mentioned above. The valve seat 22 for the orifice is provided with a toroidal surface, which is formed on the free inner edge of the frusto-conical portion.

When the abutment is being attached to the neck of a bottle as described below, the lower conical surface of the end closure member initially centralizes the abutment relative to the neck. Therefore, the guide for the attachment during insertion is provided by the tip 61.

The VALVE MEMBER (16) The valve member 16 (Figure 4) is injection molded from polypropylene. This is generally in the form of a regular central part, having two end portions or end conical heads, identical 62, joined at their apexes by means of a solid central axis 63, which extends symmetrically along the center line XX of the valve member. The end portions have walls of uniform thickness, and their free edges 64 are toroidal and complementary to the valve seat 22 of the end closure member 14. The end edges are circular, as seen in plan elevation, and are conical concavities surrounding 95, which are formed by the inner surfaces 6 of the end portions. Extending in the plane and longitudinally, the nets 65 join the outer conical surfaces 7 of the end portions 62 towards others and towards the outer cylindrical surface 8 of the shaft 63. The nets, which are regularly spaced around the valve member, provide rigidity to the valve member and help to control the flow of the product longitudinally through the housing during distribution. As described in Figures 1 and 4, the valve member 16 has four networks 65 spaced regularly at 90 ° intervals around its circumference. A number of networks different from four is possible, but applicants have found that for better results the number of networks must be even; in this way two or six networks can be used, although four are preferred.

The CLOSING DISC (18) The closing disk 18 (Figures 1 and 5) is injection molded from low density polyethylene so that it has a substantially soft and conformable nature. This is in the form of a corrugated, but substantially planar disk, and has an elevated external rim 66 with an annular top surface 67 and a free edge folded down 68. Immediately adjacent and to the flange side, the shut-off disk has a groove. peripheral open upward 69 having outer and inner arms 70, 71. With the edge 66 the outer arm 70 of the slot 69 forms a downwardly open slot 72, in which the rim of the bottle 20 can be received in a tight fashion and sealing - see Figure 1. For that purpose, the lower surface of the flange 66 within the groove 72 can be formed with a number of circumferential, concentric, conformable, downwardly projecting sealing or sealing ribs 73, which are shown three. Alternatively, the lower surface can be flat and without ribs; in a further alternative, the lower surface again has no ribs, but is inclined downward and outward at an angle of 6o to horizontal. The closing disc 18 has an additional downwardly open slot, which is formed concentrically within the grooves 69, 72 and which is capable of receiving the collar 52 of the body 12 in airtight relationship as shown in Figure 1. This additional groove is defined on its outer side by the internal arm 71 of the groove 69; on its internal side, this is defined by a collar 75, which extends downwards from the integral connection of the closing disc at its upper end. For clarity, the slot is not presented separately. Nine capture members 76 are regularly spaced around the collar 75. As is evident from Figures 1 and 5 in combination, each capture member has a shaft 77 formed as a vertical flange down the inner side of the collar, and a head 78, which is supported by the axis at the lower edge of the collar and projects radially outwardly beyond the collar at an upwardly facing flange 79 (Figure 1). The capture members 76 are elastically deformable, and their flanges 79 are capable of snapping under the free lower flank 51 of the body flap 28 between the posts 49, for releasably attaching the closure disc 18 and the body 12. together. See the capture member shown particularly on the right side of Figure 1. Within the collar 75 and its capture member 76 the closure disk 18 has, in succession, in the radially inward direction, an upper ring 80, a lower frusto-conical portion 81 having its outer periphery attached to the ring 80 by means of a generally cylindrical ring 82, and a ridge 83 straight from the inside of the frusto-conical portion 81 at the center of the closure disc. The upper surface 84 of the edge is at approximately the same level as the upper surface of the ring 80, both surfaces being placed at a level slightly smaller than the upper surface 67 of the flange 66. When, as shown in Figure 1, the The closure disk is press-fitted with the body 12, the frusto-conical portion is formed and remains closely adjacent to the central portion 44 of the body to cushion the central portion, and therefore, the upper part 36 of the body, again against any load shock of the product, when, for example, the bottle is inverted. In addition, the connection between the flange 66 and the arm 70 of the closure disc is made highly flexible, providing a bevel 96, so that the lateral adjustment movement of the device 10 relative to the capsule 19 is possible. The closure disc, accordingly, provides protection against premature rupture of the bridges 28 when the bottle is closed.

ASSEMBLY AND USE The device 10 is assembled by inserting the valve member 16 into the body 12 and snapping the end closure member 14 onto the body, to complete the housing for the valve member, and to retain the valve member loosely captive . No angular orientation is required for any of the components, and the valve member can be inserted with the end portion 62 at the front. At an appropriate time, the disc is press-fitted with the closure disc 18 to complete the device; again no angular orientation of any component is required. The device is pushed towards the ROPP capsule 19 with its closure disk 18 at the front. The edge of the downward side 68 of the closure disc is press fitted behind the rib 24 which has been preformed on the capsule for that purpose. The assembly of the device 10 and the capsule 19 is, then as it appears on the right side of Figure 1, and is ready for use in a bottling plant. In the bottling plant, the device 10 equipped with the capsule 19 is pushed towards the neck of a bottle filled with product, and is jammed there by frictional engagement and wedging the fins 26, 28 with the hole in the neck of the bottle as shown in Figure 1. In conventional fashion, the screw threads (not shown) are then rotated towards the capsule in accordance with the screw threads 92, and the free edge of the capsule is wound under the shoulder 94 of the neck of the bottle to secure the band that makes evident the tampering 90 of the bottle. To open the bottle for consumption, the user unscrews the capsule 19, thus leaving the band which makes the tamper evident 90 on the bottle and separating in closing disc 98 from the rest of the device 10 to be removed with the capsule. The product can then be distrid in a normal manner by inverting the bottle, valve member 19 is lifted from its seat 22 to allow the product to flow. The upturned shape of the hollow piston 14 and the substantial space left by the chamber 185 allows the product to flow freely around the free edge 64 of the valve member after passing through the valve seat. The position of the upper limit of the valve member is represented in Figure 1 by shaded lines and is determined by the coupling with the central portion 44 of the upper part of the body 36. As it passes through the non-refillable device 10 for distrion , the product passes along the valve member 16 guided by the networks 65 and the adjacent surfaces of the end portions 62 and the axis 63 of the valve member. The upper end portion gives the product an advantageous outward direction component. After leaving the valve member, the product passes between the posts 40 towards the exterior of the device, moves around the outer edge of the annular flange 48, and returns to the interior of the device via the spaces or gaps 50 between the posts 49 After the posts 49, it is recombined as a stream of coherent product by means of the upper conical surface of the central portion 44 and the inner cylindrical surface of the collar 52. The thin outer margin 32 of the upper flap 28, acts as a conformable reinforcing edge capable of forming a liquid-tight seal with the orifice of the neck of the bottle. The product flows from the bottle and is therefore limited by a coherent stream emerging from the collar 52. After having completed the dispensing, the bottle is inverted back to its upright position, and the capsule is screwed back onto the bottle, coupling thus pressing the closing disc 18 together with the body 12 and reforming the liquid seal, which the closing disc forms with the bottle by means of its ribs 73. The reinvestment of the bottle allows the valve member fall back on your seat 22, aided by the weight of any product that is collected in the cavity 95 on the upper part of the valve member after returning via the spaces or recesses 41. Therefore, the difficulty of filling the bottle with a substitute product is restored. For seal security, the lower end of the valve member 16 is centered by the downwardly inclined inner surface of the conical portion 60 of the hollow piston 14 and the complementary toroidal surface of the valve seat 22 and the valve member. At its upper end, the valve member is very restricted against lateral movement by the throat formed by the surface 182 of the body; space 181, although small (typically 0.25 mm), allows the valve member to move freely in its longitudinal direction according to what is required for distribution and sealing or sealing. The tamper resistance of the device of Figures 1 to 5 is provided in known manner by the bridges -38, in which the body is broken in two if any attempt is made to remove the device by an implement inserted in the body. neck of the bottle after the capsule 19 and, with this, the closure disc 18 has been removed. The symmetrical, double-ended configuration and the plastic composition of the valve member 16 shown and described in particular gives many advantages, including those mentioned above. Among the other advantages of such an arrangement are: (1) Being of thermoplastic material, the valve member can be considerably lighter in weight than marbles frequently used to reduce dynamic stresses on bridges 38 in particular; (2) Despite its lightness, the valve member is inherently robust and dimensionally stable; (3) By appropriate choice of shaft length 63 and networks 65, the valve member can be easily designed to conform to valve housings having different lengths; if desired, the shaft 63 can be completely omitted, and the end portions 62 be arranged directly back to back; (4) By varying the lengths and / or the conical angle of its end portions 62, the valve member can be adapted for different valve seat diameters and, therefore, discharge speeds; Although it is preferred that the conical angle of the end portions 62 of the described embodiment be 90 ° as shown, other conical angles may be used. In addition, although the thickness of the uniform wall shown for the end portions is preferred, variable wall thicknesses (e.g., chamfering or tapering) may be used if desired. The cavities 95 of the valve member 16 of the described embodiment are essentially conical, but it may be preferred to use other cavity shapes; in this way, arched cavities, for example semi-spherical cavities, may be employed, if desired. The embodiment of the invention now to be described in relation to Figure 6 again has a valve member again generally in the form of a regular central part, but in this second embodiment the valve heads have substantially no cavity. Other modifications can also be used (in relation to the modality described above).

MODE OF THE FIGURE 6 The embodiment of Figure 6 is similar in many ways to the embodiment described above with reference to Figures 1 to 5, and the same numerical references are used, with premiums, to denote similar or analogous parts. As before, the device was formed of four plastic components, namely an open-bottom hollow body 12 ', an open end closure member 14' snapped onto the lower end of the body, a valve member 16 held captive within of the body by the end closure member and capable of producing a hermetic coupling with the latter, and a closure disc 18 'press fitted to the body and located in the metal capsule 19' by means of a rib 24 '. The body again has lower and upper portions 34 ', 36' with respective bottle coupling fins 26 ', 28' and releasably connected by breakable bridges 38 '. In its method of assembly and use, this modality is exactly the same as the previous modality. However, the body 12 ', the valve member 16' and the closure disk 18 'were modified as will be apparent from the following individual descriptions thereof.

THE BODY (12 ') The lower part 34' of the body was modified in the following aspects: (1) Instead of the gradual inner surface 100 of the lower part of the body 34 of the first embodiment, formed of the substantially cylindrical upper surface 182 and the frustoconical surfaces 183, 184 below it, in this embodiment the inner surface 100 'of the lower part of the body 34' is purely frusto-conical and inclines upwards and inwards as shown. The function and advantages of this arrangement will be evident later. (2) Four regularly spaced ridges 101 are formed around the outside of the body. Each flange extends vertically between the two fins 26 'in alignment with a post 40 and fuses with the fins at their ends to provide greater rigidity to the fins. In this way, the ridges help to retain the lower part of the body 34 'in the bottle, especially if an attempt is made to pry the neck of the bottle. (3) Four additional vertical flanges 102 are aligned with the flanges 101, one for each post 40. Those additional flanges secure the poles of the upper fin 26 'to resist deformation of the posts by a screwdriver or the like in an attempt to manipulate undue potential to remove the valve member 16 'after the upper body 36' has been broken. The TOP 36 'of the body 12' was modified in the following aspect: (1) In the embodiment of Figures 1 to 5, the seal with the flange of the bottle was achieved directly by means of the closure disk 18 (as already has been described). However, in this embodiment, the closure disc 18 'is not required to seal with the bottle, but the body portion 36' is formed with a thin conformable annular rim 103, which projects outwardly from the upper end. of the collar 52 'to be pushed down the sealing disc 18' down in a sealed relationship against the nozzle flange. The conformable rim 103 was formed around the periphery of a thicker flange portion 104, which contains the fin 28 'below it at a conformable rim spacing. As will be seen from Figure 6, where the outer and inner limits of the bottle profile are shown at 105A and 105B respectively, the flap 28 'is located and sized to engage the internal radius 106 of the neck orifice of the bottle. bottle, that is, immediately below the flange of the bottle. In comparison, in the first embodiment, the flap 28 is cut to a lower level in relation to the bottle, for coupling with the generally cylindrical interior of the neck of the bottle.

EXTREME CLOSURE MEMBER (14 ') In some small dimensional changes, the end closure member is as described above.

THE VALVE MEMBER (16 ') The valve member is, as before, generally in the form of a regular central part, having identical circular end portions or heads 62' symmetrically joined by means of a solid central axis 63 'and by four longitudinally extending webs 65 'placed at 90 ° intervals about the axis. However, the valve member 16 'differs from that of the first embodiment in the following aspects: (1) The heads of the valve member are no longer hollow and formed with cavities at their ends. They are now solid with flat end surfaces 110, which are substantially at the level of the end terminations of the heads formed in the axial ends of the toroidal sealing edges 64 '. Applicants have experimentally discovered that valve members (16) with concavities in their valve heads are sometimes difficult to move from or to those valve seats, when dispensing or sealing or sealing is required. The reason for this is not completely understood, but it is believed that it arises from gaps or product gaps that may occur in the concavities under some circumstances. By making the heads solid, this problem has been substantially overcome, and in particular the device can be used reliably in an upright inverted position in association with an optical bar. (2) The free edges of the network 65 'do not extend linearly between the valve heads 62 at either end as in the first embodiment. Instead, they are formed of two straight edges, mutually arranged for the upper part 112 to produce a parallel space 181 with the frusto-conical surface 100 'of the lower part of the body 34'. Any attempt of a potential tampering to extract the valve member from the previous one, after the upper body 36 'has been broken, will be prevented by the contact of those edges 112 with the surface 100'. The same contact also defines the upper position that the valve member adopts for a normal distribution.

THE CLOSING DISC (18 ') From its collar 75' downwards, the closing disc corresponds to the closing disk 18 of the first embodiment. However, the points 68 to 73 of the first embodiment are replaced by a simple peripheral margin formed of a parallel oriented outer ring 120 of substantial thickness and a thinner inner ring 121, which contains the outer ring of the upper part of the collar 75. 'to a diameter to be superimposed on the flange of the bottle. As can be seen from Figure 6, when the closure is in the closed position on the bottle, the pressure exerted downwards by the capsule from above on the outer ring 120, will cause the latter to push down on the conformable rim 103 of the body 12 ', thus creating the hermetic seals to the desired liquids between the body and the bottle on the one hand, and between the body and the closing disc on the other hand. By virtue of its relative thickness, the inner ring 121 provides flexibility by which the forming ability of the flange 103 improves, thereby ensuring the complete integrity of the seal. Applicants have found that a thickness of the inner ring of between 0.25 mm and 0.30 mm gives satisfactory results. The device modifications that have been described above in relation to Figure 6 do not necessarily need to be used in combination with others. Likewise, the origins of those modified features, described with reference to Figures 1 to 5, do not necessarily have to be used in combination. In particular, within the scope of the invention, are devices having one or more of the unmodified characteristics of the first embodiment in combination with one or more of the modified features of the second embodiment. In this way, for example, in two possible variants of its first mode, the valve heads are solid (instead of being formed with concavities), and sealing or sealing with the flange of the bottle is effected by the body formed with a thin flange and conformable that projects outward for that purpose. It is noted that in relation to this date, the best method known to the applicant to carry out the aforementioned invention, is that which is clear from the present description of the invention.

Claims (13)

CLAIMS Having described the invention as above, the content of the following claims is claimed as property.

1. A non-refillable device for a container neck, which comprises a valve member held closely captive within a body for sealing engagement with a valve seat and having two ribs arranged back to back, characterized in that each head has a face Airtight circular, which can alternatively serve to seal with the valve seat and the opposite surfaces of the heads are integrally joined by nets, which are in even number and are regularly spaced around the valve member. The device according to claim 1, characterized in that each head is generally conical, the conical surfaces of the heads are generally spaced apart from each other along a valve member and are connected by networks to each other. The device according to any of the preceding claims, characterized in that each hermetic face is a toroidal part. The device according to any of the preceding claims, characterized in that a central axis joins the heads together and has cross-sectional dimensions substantially smaller than those of the heads. 5. The device according to any of the preceding claims, characterized in that there are four networks directed axially. The device according to any of the preceding claims, characterized in that each hermetic face surrounds an extreme concavity formed in the respective head. The device according to any of claims 1 to 5, characterized in that each hermetic face surrounds a substantially even end face of the respective head. The device according to any of the preceding claims, characterized by a closure member, formed with an opening and snapped onto the lower (innermost) end of the housing, the end closure member having a valve seat around it. of the opening, and is capable of sealing hermetically with each of the heads individually. The device according to claim 8, characterized in that the end closure member has a generally frusto-conical portion, which tapers in toward the valve seat around the opening, and a generally cylindrical collar portion, in the which the end closure member can be snapped onto the housing. The device according to any of the preceding claims, which further includes a closure disk separately engageable with the outer end of the housing, and having a peripheral margin, by means of which it is permanently attachable with a closure to be located on the neck of the container, when the closure and the device are in closing relationship with the container, the peripheral margin of the closure disc is superimposed on the container rim, but the closure disc is detachable from the housing, so that the closure it can be removed together with the closure disc, leaving the housing and the valve member in place to distribute product, characterized in that a thin, conformable shoulder projecting outwardly formed around the housing in a position to be interposed between the flange of the container and the peripheral margin of the closure disc in airtight relationship to both the container flange as with the peripheral margin. The device according to claim 10, characterized in that the thickness of the conformable rim is within the range of 0.25 mm to 0.30 mm. The device according to claim 10 or claim 11, characterized in that the conformable rim is made of polypropylene and the closing disc is made of low density polyethylene. The device according to any of claims 10 to 12, characterized in that the housing comprises a tubular body formed with the coupling means and the conformable rim, and an end closure member formed with the opening and snapped onto the internal end of the body.