Plastic drinks bottle with cap

Abstract

A cap, with contents in a container for delivery, retained in a sealed manner and sealed against a container neck, whereby the cap is welded to a container neck in the manner of a membrane. The cap has dimensions so that it can be tightly retained with a conical section thereof in the container neck or in a conical housing volume of a welding head, with an accurate fit. An edge of the cap is welded to a container front wall.

1 . A plastic drinks bottle with a neck and a closure attached thereon, an aluminum capsule with an active ingredient in solid, powder or liquid form which is enclosed in the capsule and which is to be dispensed into a bottle contents, wherein the aluminum capsule is arranged over a container neck, and the capsule comprises at least one surface with a central raised part pulled conically downwards towards a peripheral edge, wherein a first outer diameter of a peripheral edge of the capsule corresponds to a second outer diameter of the container neck, whilst the a first inner diameter of the peripheral edge corresponds to a second inner diameter of the container neck in an exactly fitting manner, and the peripheral edge is welded to a container edge.  
     
     
         2 . A plastic drinks bottle according to  claim 1 , wherein the capsule at a surface located to an inner side of the bottle in a welded-on condition has a breakage line which represents a circular line peripheral at least to three quarters, and an unweakened bend-up zone remains.  
     
     
         3 . A plastic drinks bottle according to  claim 1 , wherein the capsule is welded on such that at least one central raised part projects into the container neck.  
     
     
         4 . A plastic drinks bottle according to  claim 1 , wherein the capsule on one side comprises a plane surface, and is welded so that a plane surface of the capsule lies towards a flat inner side.  
     
     
         5 . A plastic drinks bottle according to  claim 1 , wherein the capsule on both sides comprises a raised part with respect to a plane in which the peripheral edge runs.  
     
     
         6 . A plastic drinks bottle according to  claim 5 , wherein the two raised parts are raised at a different height from a plane in which the peripheral edge extends.  
     
     
         7 . A plastic drinks bottle according to  claim 1  with a capsule, wherein the capsule with the at least one raised part directed towards an inside of the container neck, is placed onto the filled bottle, the capsule centers itself automatically onto the container neck under gravity, and then the capsule is welded on with one of an annular weld stamp and an ultrasonic welding head.  
     
     
         8 . A plastic drinks bottle according to  claim 7 , wherein the centered capsule is pressed into the container neck in a clamping manner until an edge of the capsule lies on the container neck, and a welding takes place in a next station.  
     
     
         9 . A plastic drinks bottle according to  claim 4 , wherein the capsule, by way of a welding head, is placed onto the container neck with a plane surface, wherein the welding head is placed over the container neck, and the welding head has a conical receiver in which the capsule is aligned centrically to the container neck and then the welding takes place amid an increase of a pressing force.  
     
     
         10 . A plastic drinks bottle according to  claim 7 , wherein the aluminum capsule is held in the welding head in a clamped manner with a snug fit, and the capsule is pulled from the conical receiver after the welding, and simultaneously a control of the welding is effected.