초록 ▼

The invention relates to a device for the leak-tight sealing of openings in containers and for the purification of the ambient air located therein as a result of opening and closing cycles, said containers being intended for the packaging of products that are sensitive to gaseous pollutants present

The invention relates to a device for the leak-tight sealing of openings in containers and for the purification of the ambient air located therein as a result of opening and closing cycles, said containers being intended for the packaging of products that are sensitive to gaseous pollutants present in the ambient air. The inventive device is particularly suitable for the packaging of solid-state medicaments in the form of pellets, tablets or capsules, having a reactivity and physical integrity that must be fully conserved.

대표청구항 ▼

1. Device for leak-tight sealing of packaging containers for products sensitive to ambient pollutants with controlled amplitude of the opening angle and mechanically assisted opening and closing, to be installed on a tubular casing of an access opening to said container, said device being made in on

1. Device for leak-tight sealing of packaging containers for products sensitive to ambient pollutants with controlled amplitude of the opening angle and mechanically assisted opening and closing, to be installed on a tubular casing of an access opening to said container, said device being made in one piece of thermoplastic polymer materials and comprising: a leak-tight sealing means of the access opening of the container,a means of assembly of the sealing means onto the tubular casing of the access opening,a connection means between the sealing means and the assembly means,a first opening tamper resistance means, placed between the sealing means and the assembly means, wherein said device comprises:a) a male type stopper-cap as the sealing means of the opening in the tubular casing of the container, composed of an upper end wall on which a tubular outer wall is mounted setting up a leak-tight contact with the inner surface of the tubular casing of the container access opening,b) as assembly means of the sealing means, an assembly ring mounted on the tubular casing of the container access opening, the inner face of which is provided with a means of attachment to the outer face of the casing, wherein when the stopper-cap is closed upon the assembly ring, the stopper-cap and the assembly ring further comprise a lower peripheral surface of the stopper-cap and an outer peripheral surface of the assembly ring and wherein the combination of the lower peripheral surface of the stopper-cap and the outer peripheral surface of the assembly ring comprises an outer peripheral ring located outside the tubular outer wall of the stopper-cap and thereby forming a groove comprising the outer peripheral ring and the tubular outer wall, which groove extends completely around the stopper-cap and assembly ring from the outer peripheral ring to the tubular outer wall of the stopper-cap,c) as connection means between the assembly means and the sealing means, two distinct hinges at a spacing from each other, wherein the two distinct hinges comprise film hinges, each of which is formed of two parts forming brackets joined together by a polymer film acting as an axis of rotation allowing the opening/closing cycles of the sealing means, one of the parts being integrated into the sealing means and comprising a portion of the outer peripheral ring with the other part integrated into the assembly means,d) as first opening tamper resistance means, a peripheral series of connecting micro-dots or a peripheral strip to be torn off, or a combination of these two means placed between the sealing means and the assembly means so that the lower peripheral surface of the stopper-cap is joined to the outer peripheral surface of the assembly ring to form the outer peripheral ring,e) a mechanical assistance means for opening and closing and controlling the amplitude of the opening angle of the stopper-cap, placed in the space located between the two hinges and simultaneously connected to the stopper-cap and comprising an element of the outer peripheral ring through a further film hinge, and to the attachment ring fastening the device onto the casing by another film hinge, the section through the said mechanical assistance means being in the form of a bracket, wherein, when viewed in a diametric section passing between the film hinges of the connecting means, the another film hinge of the mechanical assistance means and the part of the bracket joined to the assembly means are radially offset so as to be internal to the parts of the film hinges of the connecting means, which are integrated with the assembly means. 2. Device according to claim 1, wherein the cross-section of the tubular outer wall of the sealing means setting up the leak-tight contact with the inner surface of the tubular casing of the opening of the container includes a peripheral swelling developing on an outer face thereof. 3. Device according to claim 2, wherein the outer peripheral swelling of the tubular outer wall is deformed when in contact with the inner wall of the tubular casing of the opening. 4. The device of claim 1 further comprising a means for packaging an ambient air treatment agent on its inner face, wherein a tubular inner wall of the male type stopper-cap internal to the tubular outer wall forms the packaging means for an ambient air treatment. 5. Device according to claim 4, wherein the packaging means of ambient air treatment agents, contains treatment agents capable of eliminating gaseous pollutants, water vapour, oxygen (O2), ammonia (NH3), alcohols, aldehydes, ketones, sulphur dioxide (SO2), hydrogen sulphide (H2S), mercaptans, alkenes, alkynes, carbon dioxide (CO2), carbon monoxide (CO), nitrogen dioxide (NO2), alkanes, halogens, and/or bacteria present in the ambient air. 6. Device according to claim 5, wherein when the pollutant is water vapour, the treatment agent is selected from the group consisting of silica gels and molecular sieves in powdery form or deposited on a powdery support. 7. Device according to claim 1, wherein the stopper-cap is provided with a gripping visor. 8. Device according to claim 1, wherein the stopper-cap is provided with a child opening safety system. 9. Device according to claim 8, wherein the safety system is installed adjacent to the visor. 10. Device according to claim 8, wherein the opening safety system is a flexible strip surrounding the visor and forming an integral part of the assembly means. 11. Device according to claim 1, wherein the inner face of the stopper-cap tubular outer wall and the outer face of the outer wall of the tubular casing of the access opening of the container are provided with a click fit means. 12. Device according to claim 1, wherein the assembly means of the stopper-cap is an attachment ring mounted on the tubular casing of the access opening, provided with a click fit means on its inner face facing the outer face of the tubular casing, on which there is also a click fit means. 13. Device according to claim 1, wherein the assembly means is force fitted on the tubular casing. 14. Device according to claim 1, wherein the assembly means is mounted by bonding on the tubular casing. 15. Device according to claim 1, wherein the outer peripheral surface of the tubular casing of the access opening to the container to be sealed comprises two projecting peripheral collars, separated from each other by creating a groove with an approximately rectangular shaped section, the thickness of the tubular casing inside the groove is not modified, and the attachment ring is force fitted into the said groove. 16. Device according to claim 1, wherein a peripheral groove that may have an approximately rectangular, hemispherical or semi-elliptical shaped section, is made recessed within the thickness of the wall of the tubular casing of the container, the thickness of the tubular casing inside the groove being modified, and being less than the thickness of the tubular casing and the attachment ring force fitted into the said groove. 17. Device according to claim 15, wherein the inner surface of the attachment ring is provided with click fit means which, when the said attachment ring is force fitted into the groove of the container, itself equipped with complementary click fit means, fits into the corresponding click fit means so as to block any rotation or translation of the stopper with respect to the container. 18. Device according to claim 17, wherein the said click fit means on the inner surface of the attachment ring and on the inner surface of the groove in the container are splines or slots. 19. Device according to claim 1, wherein the amplitude of the opening angle controlled by the mechanical assistance means is not more than 160°. 20. Device for leak-tight sealing of packaging containers for products sensitive to ambient pollutants with controlled amplitude of the opening angle and mechanically assisted opening and closing, to be installed on a tubular casing of an access opening to said container, said device being made in one piece of thermoplastic polymer materials and comprising: a leak-tight sealing means of the access opening of the container,a means of assembly of the sealing means onto the tubular casing of the access opening,a connection means between the sealing means and the assembly means,a first opening tamper resistance means, placed between the sealing means and the assembly means, wherein said device comprises:a) a male type stopper-cap as the sealing means of the opening in the tubular casing of the container, composed of an upper end wall on which a tubular outer wall is mounted setting up a leak-tight contact with the inner surface of the tubular casing of the container access opening,b) as assembly means of the sealing means, an assembly ring mounted on the tubular casing of the container access opening, the inner face of which is provided with a means of attachment to the outer face of the casing,c) as connection means between the assembly means and the sealing means, two distinct hinges at a spacing from each other, wherein the two distinct hinges comprise film hinges, each of which is formed of two parts forming brackets joined together by a polymer film acting as an axis of rotation allowing the opening/closing cycles of the sealing means, one of the parts being integrated into the sealing means with the other part integrated into the assembly means,d) as first opening tamper resistance means, a peripheral series of connecting micro-dots or a peripheral strip to be torn off, or a combination of these two means placed between the sealing means and the assembly means so that the lower peripheral surface of the stopper-cap is joined to an outer peripheral surface of the assembly means,e) a mechanical assistance means for opening and closing and controlling the amplitude of the opening angle of the sealing means, placed in the space located between the two hinges and simultaneously connected to the stopper-cap through a further film hinge, and to the attachment ring fastening the device onto the casing by another film hinge, the section through the said mechanical assistance means being in the form of a bracket, wherein, when viewed in a diametric section passing between the film hinges of the connecting means, the another film hinge of the mechanical assistance means and the part of the bracket joined to the assembly means are radially offset so as to be internal to the parts of the film hinges of the connecting means, which are integrated with the assembly means;wherein the bracket of the mechanical assistance means is formed with an angle in the order of 90° when the stopper-cap is closed upon the tubular casing, which bracket can be deformed in an angle of not more than 15° on each end of the bracket as the stopper-cap is being opened. 21. Device according to claim 1, wherein said device is made from thermoplastic polymer composition selected from the group consisting of polyethylenes (PE), polypropylenes (PP), ethylene/propylene copolymers and blends of them, polyamides (PA), polystyrenes (PS), acrylonitrile-butadiene-styrene (ABS) copolymers, styrene-acrylonitrile (SAN) copolymers, polyvinyl chlorides (PVC), polycarbonates (PC), polymethyl methacrylate (PMMA), and polyethylene terephthalates (PET) used alone or mixed. 22. Device according to claim 21, wherein at least one natural or synthetic thermoplastic elastomer is associated with the thermoplastic compositions, the elastomer used being selected from the group consisting of natural rubber or synthetic rubber type elastomers, and rubbers based on mono-olefins, diolefin rubbers, rubbers based on condensation products, thermoplastic rubbers, silicones, styrenic rubbers, styrene-butadiene-styrene (SBS) and styrene-isoprene-styrene (SIS). 23. Device according to claim 1 wherein said device is made in a single part according to plastics methodologies. 24. A method for leak-tight sealing and ambient air purification treatment of packaging containers for products sensitive to gaseous pollutants comprising utilizing a device according to claim 1. 25. Device according to claim 21, wherein at least one natural or synthetic thermoplastic elastomer is associated with the thermoplastic compositions, the elastomer being at least one selected from the group composed consisting of isobutene/isoprene polymers, ethylene vinyl acetate (EVA), ethylene-propylene (EPR), ethylene-propylene-diene (EPDM), ethylene-acrylic esters (EMA-EEA), fluorinated polymers, polybutadienes, styrene-butadiene (SBR) copolymers, polyester, polyurethane, thermoplastic rubbers, silicones, styrenic rubbers, styrene-butadiene-styrene (SBS) and styrene-isoprene-styrene (SIS). 26. Device for leak-tight sealing of packaging containers for products sensitive to ambient pollutants with controlled amplitude of the opening angle and mechanically assisted opening and closing, to be installed on a tubular casing of an access opening to said container, said device being made in one piece of thermoplastic polymer materials and comprising: a leak-tight sealing means of the access opening of the container,a means of assembly of the sealing means onto the tubular casing of the access opening,a connection means between the sealing means and the assembly means,a first opening tamper resistance means, placed between the sealing means and the assembly means, wherein said device comprises:a) a male type stopper-cap as the sealing means of the opening in the tubular casing of the container, composed of an upper end wall on which a tubular outer wall is mounted setting up a leak-tight contact with the inner surface of the tubular casing of the container access opening,wherein the stopper-cap further comprises a lower peripheral surface of the stopper-cap located outside the tubular outer wall and forming a groove with the tubular outer wall extending completely around the stopper-cap from the lower peripheral surface of the stopper-cap to the tubular outer wall of the stopper-cap,b) as assembly means of the sealing means, an assembly ring mounted on the tubular casing of the container access opening, the inner face of which is provided with a means of attachment to the outer face of the casing,c) as connection means between the assembly means and the sealing means, two distinct hinges at a spacing from each other, wherein the two distinct hinges comprise film hinges, each of which is formed of two parts forming brackets joined together by a polymer film acting as an axis of rotation allowing the opening/closing cycles of the sealing means, one of the parts being integrated into the sealing means and comprising a portion of the lower peripheral surface of the stopper-cap with the other part integrated into the assembly means,d) as first opening tamper resistance means, a peripheral series of connecting micro-dots or a peripheral strip to be torn off, or a combination of these two means placed between the sealing means and the assembly means so that the lower peripheral surface of the stopper-cap is joined to an outer peripheral surface of the assembly means,e) a mechanical assistance means for opening and closing and controlling the amplitude of the opening angle of the stopper-cap, placed in the space located between the two hinges and simultaneously connected to the stopper-cap and comprising an element of the outer peripheral ring through a further film hinge, and to the attachment ring fastening the device onto the casing by another film hinge, the section through the said mechanical assistance means being in the form of a bracket, wherein, when viewed in a diametric section passing between the film hinges of the connecting means, the another film hinge of the mechanical assistance means and the part of the bracket joined to the assembly means are radially offset so as to be internal to the parts of the film hinges of the connecting means, which are integrated with the assembly means.