Dehydrating and reclosable hinged plug-lid with tamper indicator and compensation device

Abstract

The invention is a dehydrating and reclosable hinged plug-lid that includes a dehydrating agent, a fixation mechanical system provided between the occlusion element and the open end of the tubular container, a tamper indicator, a compensation device for preserving the conditioned products provided inside the occlusion element and secured to said occlusion element, wherein said compensation device consists of a hollow device having an essentially conical, frusto-conical, polyhedral, frusto-polyhedral apparent shape with a large annular base and a small annular base parallel to the large base, the small base in contact with the conditioned products being coaxial and connected to the large base by at least one linking element that can be deformed under the action of a mechanical pressure and that can recover its initial shape when said pressure is no longer applied.

1 . Dehydrating and reclosable hinged plug-lid, constituting a system for sealed occlusion of an open end of a tubular container for the conditioning of moisture-sensitive products, comprising
 a dehydrating agent,   a fixing mechanical system placed between an occlusion element and the open end of the tubular container,   a tamper indicator,   a compensation device for holding the conditioned products, positioned inside the occlusion element and secured to said occlusion element,   
     characterised in that said compensation device comprises a hollow device having an essentially conical, frusto-conical, polyhedral or frusto-polyhedral apparent shape, comprising a large annular base and a small base parallel to the large base, this small base, in contact with the products, being coaxial and connected to the large base by at least one linking element that can be deformed under the action of a mechanical pressure and that can recover its initial shape when said pressure is no longer applied. 
   
   
       2 . Plug-lid according to  claim 1 , characterised in that the ratio of the diameters of the part of the compensation device in contact with the product, that is to say its small base, and the end of said device connected to the lower part of the plug-lid, that is to say its large base, varies between 0.05 and 0.9. 
   
   
       3 . Plug-lid according to  claim 1 , characterised in that the compensation device has an angle at the its top lying in an interval from 30° to 120°. 
   
   
       4 . Plug-lid according to  claim 1 , characterised in that the at least one linking element of the compensation device is selected from:
 at least one deformable helix winding on an imaginary cone and coaxial with an axis of the device, and appearing as a frusto-conical or conical spring, and   at least one deformable strip appearing as one of the edges of faces of an imaginary polyhedron in which the device lies or belonging to an imaginary surface of a cone or a truncated cone.   
   
   
       5 . Plug-lid according to  claim 4 , characterised in that the at least one deformable linking element of the compensation device comprises at least one helix. 
   
   
       6 . Plug-lid according to  claim 4 , characterised in that the at least one deformable linking element of the compensation device is preferentially formed by at least two helices with directions that are opposite and distributed regularly in space. 
   
   
       7 . Plug-lid according to  claim 4 , characterised in that the at least one deformable linking element of the compensation device comprises at least one strip. 
   
   
       8 . Plug-lid according to  claim 4 , characterised in that the at least one linking element of the compensation device comprises at least two strips, opposite or regularly distributed in space. 
   
   
       9 . Plug-lid according to  claim 1 , characterised in that the compensation device is assembled by its large base, on the lower part of the housing containing a desiccant, by an assembly system. 
   
   
       10 . Plug-lid according to  claim 9 , characterised in that the compensation device is, by means of a skirt and collar extending its large base, assembled on the bottom of the plug-lid by the assembly system. 
   
   
       11 . Plug-lid according to  claim 9 , characterised in that the assembly system is selected from the group consisting of clipping, riveting, crimping, press-fitting, gluing and welding. 
   
   
       12 . Plug-lid according to  claim 1 , characterised in that the compensation device is produced by injection moulding, using thermoplastic polymer materials. 
   
   
       13 . Plug-lid according to  claim 12 , characterised in that the thermoplastic polymer materials are chosen from the group consisting of polyolefin homopolymers and copolymers, polyamides (PA), polystyrenes (PS), copolymers of acrylonitrile-butadiene-styrene (ABS), copolymers of styrene-acrylonitrile (SAN), polymethyl methacrylates (PMMA), polyethylene terephthalates (PET), polybutylene terephthalates (PBT), polyacetals (POM), polyvinyl chlorides (PVC) and polycarbonates (PC). 
   
   
       14 . Plug-lid according to  claim 12 , characterised in that the thermoplastic polymer materials are chosen from the group consisting of mono-olefin elastomers such as polymers of isobutylene/isoprene, ethylene vinyl acetate (EVA), ethylene propylene (EPR), ethylene propylene diene (EPDM), acrylic ethylene esters (EMA/EEA), fluorinated polymers, diolefin rubbers, such as polybutadiene, copolymers of butadiene-styrene (SBR), rubbers based on condensation products such as polyester and polyurethane thermoplastic rubbers, silicones, styrenic rubbers, such as styrene butadiene styrene (SBS), styrene isoprene styrenes (SIS), styrene ethylene butadiene styrenes (SEBS) and other block copolymers, used alone or in a mixture, formulated or not. 
   
   
       15 . Plug-lid according to  claim 1 , characterised in that the dehydrating agent comprises a housing present on the bottom of the plug-lid, said housing containing a dehydrating material chosen from the group constituted by silica gels, molecular sieves and dehydrating products available in powder form or deposited on a powdery support or containing a capsule made from a dehydrating polymer material containing or not containing dehydrating fillers. 
   
   
       16 . Plug-lid according to  claim 1 , characterised in that the fixing mechanical system placed between the occlusion element and the open end of the container is selected from the group consisting of a ring, collar and loop. 
   
   
       17 . Plug-lid according to  claim 16 , characterised in that the fixing element is secured to the container by a system selected from the group consisting of press-fitting, clipping, gluing and welding. 
   
   
       18 . Plug-lid according to  claim 1 , characterised in that the tamper indicator is formed by micro-links connecting all or part of a lower peripheral surface of the plug-lid to all or part of an upper peripheral surface of a fixing ring, collar or loop. 
   
   
       19 . Plug-lid according to  claim 1  further comprising a hinge of integral or mechanical type. 
   
   
       20 . (canceled)