Closure device particularly for bottles and/or containers

Abstract

A closure device particularly usable for temporarily closing a container for liquids, comprising a first cap, which is provided with first elastically deformable elements for connection to the outer neck of the container; a second coaxial and external cap being slidingly and selectively associated with the first cap and comprising second elements for the temporary activation of the first elements and third elements suitable to remove the closure device from the neck of the container.

What is claimed is:  
     
         1 . A closure device particularly for a container with an outer neck for liquids, comprising a first body which is provided with first elastically deformable means for connection to the outer neck of said container, a second body being slidingly and selectively associated with said first body and being arranged coaxially and externally, said second body comprising second means for temporary activation of said first means and third means for removing said closure device from said neck.  
     
     
         2 . The closure device according to  claim 1 , wherein said first connection means protrude from said first body so as to allow selective and temporary connection to one or more grip elements protruding externally with respect to said neck of said container.  
     
     
         3 . The closure device according to  claim 2 , wherein said first body comprises a first upper surface, perimetrically to which there protrudes approximately axially a first perimetric rim for supporting said first connection means.  
     
     
         4 . The closure device according to  claim 3 , wherein said connection means, which are elastically deformable, are constituted by a plurality of wings that protrude approximately axially from said first perimetric rim of said first body and are arranged mutually side by side so as to constitute a first crown.  
     
     
         5 . The closure device according to  claim 4 , wherein said wings, which are mutually equidistant, are elastically deformable at least along a radial direction with respect to the shape of said first body, so as to allow to vary the diameter of said first crown.  
     
     
         6 . The closure device according to  claim 4 , wherein said wings of said first body have, at free ends thereof, at least one grip hook or tooth, which protrudes inward for temporary and selective connection to said one or more grip elements of said neck.  
     
     
         7 . The closure device according to  claim 4 , wherein said one or more grip elements of said neck are constituted by an annular lip, which protrudes outward from said neck of said container.  
     
     
         8 . The closure device according to  claim 7 , wherein said lip protrudes from said neck at a preset distance from the opening of said container, said distance being approximately equal to the height of said first crown plus the height of said first perimetric edge, so as to ensure that the grip of said teeth on said lip occurs approximately simultaneously with the resting on said neck of said first upper surface of said first body.  
     
     
         9 . The closure device according to  claim 8 , wherein said annular lip has a profile that is approximately trapezoidal and is formed by an oblique upper side, so as to ensure the insertion of said first body along said neck, and by a lower side, which is orientated approximately at right angles to the first lateral surface of said neck, so as to ensure effective grip of said grip teeth.  
     
     
         10 . The closure device according to  claim 1 , wherein said second body is constituted by a second cap, which is provided with a lateral surface that at least partially surrounds said first body which is constituted by a first cap, and with means for limiting the stroke of mutual axial sliding of said first and second caps.  
     
     
         11 . The closure device according to  claim 10 , wherein said second body is constituted by a circular ring that is provided with a lateral surface that at least partially wraps around said first body and with means for limiting the stroke of the mutual axial sliding of said first and second caps.  
     
     
         12 . The closure device according to  claim 2 , wherein said second body comprises a second upper surface, perimetrically to which a second perimetric rim protrudes approximately axially, said second rim comprising said second means for activating said first means.  
     
     
         13 . The closure device according to  claim 12 , wherein said second means for temporary activation of said first means are constituted by inner surfaces of said second perimetric rim of said second body.  
     
     
         14 . The closure device according to  claim 13 , wherein said inner surfaces of said second body, which constitute said second activation means, comprise a second lateral surface that is shaped approximately complementarily to said first perimetric edge of said first body.  
     
     
         15 . The closure device according to  claim 14 , wherein said inner surfaces of said second body, which constitute said second activation means, comprise a third lateral surface which has a slightly larger diameter than said first perimetric rim of said first body.  
     
     
         16 . The closure device according to  claim 15 , wherein said second lateral surface of said second cap is provided above said third lateral surface and is connected thereto by means of a recess.  
     
     
         17 . The closure device according to  claim 4 , wherein after resting said first upper surface of said first body on the opening of said neck, a downward movement of said second cap forces an axial sliding thereof with respect to said first body, consequently activating said first connection means.  
     
     
         18 . The closure device according to  claim 17 , wherein the downward movement of said second cap with respect to the first body forces an elastic deformation of said wings, preloading them and placing them in abutment against said first lateral surface of said neck, so as to achieve temporary connection between said grip teeth and said annular lip.  
     
     
         19 . The closure device according to  claim 16 , wherein said second lateral surface of said second cap has a diameter that is approximately equal to the diameter of said first perimetric rim of said first body.  
     
     
         20 . The closure device according to  claim 4 , wherein the tips of said wings are provided so as to protrude slightly outward.  
     
     
         21 . The closure device according to  claim 20 , wherein said third lateral surface of said second cap has a diameter that is approximately equal to the minimum diameter of said first crown of said first body, measured at said free ends of said wings.  
     
     
         22 . The closure device according to  claim 15 , wherein an annular recess is obtained below said third lateral surface of said second cap and is suitable to allow to temporarily contain said protruding tips of said wings.  
     
     
         23 . The closure device according to  claim 22 , wherein the lifting of said second cap with respect to the first cap allows to move said previously preloaded wings away from said first lateral surface of said neck and to accommodate said wings in said recess of said second cap, consequently disengaging said first crown from said annular lip of said neck.  
     
     
         24 . The closure device according to  claim 14 , wherein said third means for removing said closure device from said neck are constituted by an annular rim that protrudes inward from said second body so as to delimit said recess in a lower region.  
     
     
         25 . The closure device according to  claim 24 , wherein said annular rim has a minimum diameter that is comprised between the diameter of said annular lip and the diameter of said first crown, measured with said wings in the inactive position.  
     
     
         26 . The closure device according to  claim 25 , wherein said annular rim constitutes a stroke limiting means during the lifting of said second cap with respect to the first one, by interacting with said tips of said wings.  
     
     
         27 . The closure device according to  claim 3 , further comprising fourth means for indicating visually that a first opening of said container has occurred, said means being constituted by a seal that is associated with, or monolithically coupled to, said second upper surface of said second body.  
     
     
         28 . The closure device according to  claim 27 , wherein said seal is constituted by a plate that protrudes downward from said upper second surface, so as to interact with a seat that is shaped approximately complementarily and is formed in said first upper surface of said first body.  
     
     
         29 . The closure device according to  claim 28 , wherein said plate, which lies on a plane that is approximately parallel to, and lower than, the plane of said second upper surface, is associated with it or monolithically coupled to it by means of two or more tabs.  
     
     
         30 . The closure device according to  claim 29 , wherein each one of said tabs, which are equidistant, has at least one weaker region, such as a region having a reduced cross-section.  
     
     
         31 . The closure device according to  claim 28 , wherein the distance between said plate and said second upper surface is approximately equal to the depth of said seat formed in said first upper surface of said first body.  
     
     
         32 . The closure device according to  claim 28 , wherein said plate is suitable to interact with said seat following the first closure of said device, so as to produce, when said second cap rises, the breakage of said tabs.  
     
     
         33 . The closure device according to  claim 28 , wherein said plate has third perimetric rims that interact by interference in said seat so as to provide a locking force that is greater than the force required to break said tabs at said weaker regions.  
     
     
         34 . The closure device according to  claim 12 , further comprising separate means for balancing the internal pressure of said bottle to a value proximate to the external pressure, said means being activatable automatically during the opening of said bottle.  
     
     
         35 . The closure device according to  claim 34 , wherein said separate pressure balancing means comprise a through hole, which is provided approximately centrally in said first upper surface of said first body and can be closed temporarily, when said second body is lowered, by means of a complementarily shaped protrusion that protrudes downward from said second upper surface of said second body.