Patent ID: 7607549

Claim:
A capsule containing a mixer substance for bottles containing pressurized liquids, comprising a lower cap ( 4 ) provided with a first security strip ( 12 ) and also provided with means for connecting which enable a removable insertion of the capsule onto a mouth ( 2 ) of a bottle ( 1 ), wherein: the means for connecting comprises a screw-coupling between the lower cap ( 4 ) and the mouth ( 2 ) of the bottle; an upper part of the lower cap ( 4 ) is open externalwise and is provided with a neck ( 4 a ) externally of which an upper cap ( 5 ) couples with freedom to displace in an axial direction, which upper cap ( 5 ) is provided with a second security strip ( 13 ); the lower cap ( 4 ) comprises an internal annular hoop ( 18 ), made internally of the lower cap ( 4 ) below the neck ( 4 a ), and destined to insert sealingly internally of the mouth ( 2 ) of the bottle when the lower cap ( 4 ) is inserted on the bottle; a reservoir ( 8 ) being provided internally of the upper cap ( 5 ), having a bottom ( 8 a ) which is breakable, and a cutter ( 9 ) being located internally of the upper cap ( 5 ), which reservoir ( 8 ) is inserted solidly and sealingly in the neck ( 4 a ) of the lower cap ( 4 ); a substance being contained internally of the reservoir ( 8 ) which substance is to be inserted into the bottle when the bottom ( 8 a ) of the reservoir ( 8 ) is broken; the capsule ( 3 ) comprising means for coupling to enable an axial movement of the upper cap ( 5 ) with respect to the neck ( 4 a ) and in a downwards direction with respect to the bottle; the means for coupling prevent a rising axial movement of the upper cap ( 5 ) with respect to the neck ( 4 a ); means for hooking being provided to realize a solid anchoring between the reservoir ( 8 ) and the neck ( 4 a ) of the lower capsule ( 4 ) when the reservoir ( 8 ) is inserted on the neck ( 4 a ).