A CAPSULE FOR SECURITY CLOSURE OF CONTAINERS

Abstract: The invention relates to a capsule (1) for the security closure of containers. It is usefully applied in the field of diagnosis and especially on containers full of a chemical reagent into which a sample of a substance to be analysed is injected. The capsule (1) is provided with a cap (2) having at least one portion (3) made of a material which can be pierced by a syringe needle. The portion (3) is covered by a cover (4). The cap (2) is associated to a first security ring (5) such as to detach from the cap (2) following a raising of the cap (2) in an axial direction to the container. A second security ring (6) is associated to the cover (4) in such a way as to detach therefrom following a raising of the cover (4) so as to uncover the pierceable portion (3) and permit a needle to be introduced into the container.

Description: Descπption. A Capsule for Security Closure of Containers Technical Field The invention relates to a capsule for the security closure of containers. Specifically though not exclusively the capsule is applied in the diagnostic field for practically and swiftly carrying out analyses of samples of substances In particular reference is made to a capsule of the type comprising: a cap for closing a container and provided with at least a portion made of a material able to be pierced using a needle and destined in use to be so pierced so as to introduce the needle into the container; a cover, removable mounted on the cap in such a way as to cover said pierceable portion of the cap and prevent an introduction of a needle. Background Art. A capsule of this type is already known, in which the cap is screwed on the container and the cover is press-applied on the cap. In use, the cover is removed and the container, previously filled with a chemical reagent, is pierced so as to introduce an analytical sample therein, with a resulting mixture of the sample and the reagent. Thus the analysis can be performed by simple observation, without having to open the container. The injection is carried out by pushing the needle of a syringe through the pierceable portion of the cap. In such known-type capsules there is no guarantee that the container has not been tampered with before use: a miscreant could indeed remove the cover, and using a syringe introduce some substance or other capable of altering the reagent's properties, thereafter re-closing the cover and leaving no trace of fraud. Disclosure of Invention. The main aim of the present invention is to obviate the above-mentioned drawback of the prior art by providing a capsule of the above-described type which is able to attest to any fraudulent intervention on the capsule to which it is applied. An advantage of the capsule is that it is constructional 1y simple and economical and simple and practical to use. The above aims and advantages are all attained by the capsule of the invention, as it is characterised in the appended claims. Further characteristics and advantages of the present invention will better emerge from the detailed description that follows, of an embodiment of the invention, illustrated in the form of a non-limiting example in the accompanying drawings, in which: Figure 1 shows a partially-sectioned vertical elevation view of the capsule of the invention. With reference to the figure, 1 denotes in its entirety a capsule for a security closure for containers, comprising a cap 2 for closing a container a provided with at least one portion 3 made of a material which can be pierced by a needle. The capsule 1 is destined to be pierced by a needle so that the latter can be introduced into the container. In the example the pierceable portion 3 is constituted by an deformable and axial y symmetrical body, preferably made of natural rubber, which is applied by jointing internally of a central aperture present on the upper part of the remaining, more rigid portion of the cap 2, which is made of a plastic material . Once the capsule 1 has been mounted on a container, the rubber portion 3 closes the mouth thereof and therefore also functions as a gasket. The rigid plastic portion of the cap 2 exhibits a thread 10 destined to screw-couple with the neck of the contai ner . The capsule 1 further comprises a cover 4, removably mounted on the cap 2 so as to cove 1 " the pierceable rubber portion 3 of the cap 2 without leaving any possible way for a needle to be introduced into the container. When the cover 4 is mounted on the cap 2 and the capsule 1 is mounted on the container, the rubber portion 3 is thus inaccessible from the outside unless the cover 4 is first removed or at least raised sufficiently for a needle to be ι nserted . The rigid plastic portion of the cap 2 is made in one piece with and exhibits an annular projection 7, projecting upwardly in an axial direction and having a undercut surface 8. The cover 4, when contactingly engaged on the cap 2 and covering the rubber portion 3, contacts the upper edge of said annular projection 7. A first security ring 5 is associated to the cap 2 in such a way as to detach therefrom when the cap 2 is raised in an axial direction with respect to the container The first ring 5 is connected, by means of easy-break π bs 12, to an annular element 11 oint-inserted in a seating afforded on an internal wall of the cap 2. The annular element 11 in use will be drawn by the cap 2 upwards during an unscrewing movement. The first security ring 5 is similar in terms of both constructional and functional characteristics to many known-type security rings. A second security ring 6 is associated to the cover 4 in such a way as to detach or di stance from the cover 4 by effect of removal of the rubber portion 3 of the cap 2, which allows a needle to be inserted. The cover 4 and the second security ring 6 are inter¬ connected by an annular element 9 which can be constituted for example by a plurality of ribs arranged crown-fashion. The second security ring 6 is destined to interact with the undercut surface 8 of the annular projection 7, so that even a partial raising of the cover 4 to gain access to the underlying rubber portion 3 causes the annular element 9 to break. This breakage and the consequent separation of the second security ring 6 from the cover 4 are therefore witness to the rubber portion 3 having been accessed, and provide proof of any tampering with the container.

Claims: Cl ai ms . 1. A capsule (1) for a security closure of containers, compπ sing: a cap (2) for closing a container, provided with at least one portion (3) made in a material able to be pierced by a needle and destined so to be pierced for injection of a substance into the container; a cover (4) mounted removably on the cap (2) in such a way as to cover said pierceable portion (3) and prevent an introduction of a needle into the container; characterized in that it comprises: a first security ring (5), associated to the cap (2) such as to detach or distance from said cap (2) following a raising of the cap (2) in an axial direction to the contai ner; a second security ring (6) associated to the cover (4) such as to detach or distance from said cover (4) following a raising of the cover (4), leading to an uncovering of the rubber portion (3) of the cap (2), enabling a needle to be inserted into the container 2. A capsule (1) as in claim 1 , characterized in that the cap (2) is solidly connected to an annular projection (7) which projects in an axial direction and which has an undercut surface (8) interacting with said second security 3. A capsule (1) as in claim 1, characterized in that the cover (4) and the second security ring (6) are inter¬ connected by means of an easy-break annular element (9).

Inventors: MORINI EMILIO, MORINI, EMILIO
Applicants: BORMIOLI ROCCO & FIGLIO SPA, MORINI EMILIO, BORMIOLI ROCCO & FIGLIO S.P.A., MORINI, EMILIO
Application year: 1996
Main classification: B65D51
IPC codes: B65D41, B65D51