Rotary closure with internal, separately fillable capsule comprising film seal to be opened by means of rotation

Abstract

Rotary closure includes a separately fillable capsule with a foil seal, for the insertion of this capsule into this rotary closure. The container attachment at the inside forms a downwardly projecting sleeve with an inwardly projecting edge region whose clear width is spanned at the bottom by a diametric saw blade which projects upwards with its cutting teeth. The capsule in the inside is firstly driven axially downwards on rotating the rotary closure cap and with its sealing foil is pressed over the saw blade, by which means it is diammetrically cut open. On further rotation, it lies on the lower inner edge of the inner-lying sleeve in the container attachment and is then rotated without an axial movement. The sealing foil is thereby cut open, and the foil pieces are gathered together in a corrugated manner.

1 .- 9 . (canceled) 
     
     
         10 . A rotary closure with an inner-lying, separately fillable capsule with a foil sealing, for the insertion of this capsule into this rotary closure, wherein the sealing foil of the foil sealing is openable, so that the capsule contents drops into the container provided with the closure, comprising a three-part manner and consists of a rotary closure cap, of a foil-sealed and beaker-like capsule which in the overturned position can be inserted into the rotary closure cap, and of container attachment for screwing onto the spout of a container, wherein the capsule is designed at least in a water-vapour-tight manner, by way of it being manufactured from a polymer absorbing water vapour and being closed with a sealing foil, and that on rotating the rotary closure cap, the capsule can firstly be driven downwards in the container attachment in a purely axial manner, and after diametrically cutting open the sealing foil by way of a diametrical saw blade with at least one cutting tooth on each radial side, said tooth projecting upwards and having sharp edges, can be rotated at the lower end of the container attachment by way of contact on this attachment, so that the sealing foil along at its outer periphery can be cut open and gathered together in a corrugated manner, by approximately 180°, by two cutting elements which project at right angles from the saw blade. 
     
     
         11 . A rotary closure with an inner-lying, separately fillable capsule with a foil sealing, according to  claim 10 , wherein the inner or outer side of the capsule or both its sides is/are provided with a barrier layer, for ensuring the sealedness with regard to oxygen, and that the sealing foil is an oxygen-tight foil. 
     
     
         12 . A rotary closure with an inner-lying, separately fillable capsule with a foil sealing, according to  claim 10 , wherein the inner or outer side of the capsule or both its two sides is/are provided with a barrier layer, which apart from the sealedness with regard to oxygen, also ensures a sealedness with regard to UV. 
     
     
         13 . A rotary closure with an inner-lying, separately fillable capsule with a foil sealing, according to  claim 10 , wherein the container attachment at the inside comprises a downwardly projecting sleeve for the axial guidance of the capsule in a manner secured against rotation, the clear width of this sleeve being spanned at the bottom by a diametrical saw blade which projects upwards with its cutting teeth, and ribs are integrally formed on the rotary closure cap at the inside, wherein these ribs act upon slanted surfaces of oblique recesses on the upper side of the overturned capsule, so that the capsule can firstly be driven downwards in a purely axial manner on rotation of the closure cap, and after diametrically cutting open the sealing foil by way of the saw blade, can be rotated by these ribs, so that the sealing foil along the outer periphery can be cut open and gathered together in a corrugated manner, by approximately 180°. 
     
     
         14 . A rotary closure with an inner-lying, separately fillable capsule with a foil sealing, according to  claim 13 , wherein the container attachment at the inside forms a downwardly projecting sleeve with an inwardly projecting edge region, the clear width of said sleeve being spanned at the bottom by a diametric saw blade which projects upwards with its cutting teeth, and the sleeve at the lower inner edge comprises temporary supports and axial guide rails, and the capsule with its sealing foil directed downwards comprises oblique recesses which are shaped out at its upper side in its outer edge region, into which recesses radial ribs on the lower side of the rotary closure cap engage, and on its lower, outwardly projecting edge comprises recesses for axially sliding over of the guide rails on the inner side of the sleeve, wherein the capsule firstly with its lower edge lies on the temporary supports, and by way of rotating the closure cap can firstly be pressed downwards axially along the sleeve beyond these temporary supports without rotation, whilst diametrically cutting open its sealing foil by way of the cutting teeth of the saw blade, the recesses thereby pass the lower ends of the guide rails at the bottom and the capsule with its edge subsequently lies on the projection, and on further rotation its sealing foil, along the outer periphery can be cut open and gathered together in a corrugated manner, by approximately 180°, by cutting elements which are integrally formed on the two ends of the saw blade in a manner running at right angles to this. 
     
     
         15 . A rotary closure with an inner-lying, separately fillable capsule with a foil sealing, according to  claim 10 , wherein the saw blade at its two radials comprises several upwardly projecting cutting teeth with sharp cutting edges, and in each case a cutting element is integrally formed on both ends of the saw blade at a right angle to the saw tooth plane, in a manner pointing in the clockwise direction seen from above and comprises an obliquely descending sharp cutting edge. 
     
     
         16 . A rotary closure with an inner-lying, separately fillable capsule with a foil sealing, according to  claim 10 , wherein the capsule has a filling volume of 3 to 6 ml. 
     
     
         17 . A rotary closure with an inner-lying, separately fillable capsule with a foil sealing, according to  claim 10 , further comprising a guarantee strip integrally formed at the bottom on the rotary closure cap via material bridges, as is a guarantee strip integrally formed at the bottom on the container attachment via thin location or fine material bridges.