Sig Technology Ag

Terxo Ag

Sig Services Ag

Bericap Holding Gmbh

Sig Combibloc Services Ag

David Koller

Markus Wassum

Hansjörg Huber

Sven Himmelsbach

Markus Leuenberger

Fritz Dill

Markus J Schellenberg

Valona Hajdari-Redzepi

Represented and described is a resealable pouring element for cardboard/plastic composite packages, in particular beverage packages, with a base element having a circumferential fastening flange as well as an external thread, with opening means arranged at least in the unopened state of the pouring element in the interior of the base element and with a screw cap with internal thread, wherein the opening means are designed such that when the composite package is initially opened by unscrewing the screw cap by breaking the composite material of the package or a barrier layer located in the base element, a pour opening is created inside the pouring element and wherein at least one tamper-evident seal is arranged between the base element and the screw cap. In order to reduce the assembly effort for such a resealable pouring element, it is provided that an anchor ring is arranged below the screw cap and is connected to the screw cap via a hinge a rotationally fixed manner and in that the tamper-evident seal consists of an indicating element, whose one end is fixedly connected to the anchor ring or the screw cap and in which the other end is connected to the anchor ring by means of a predetermined breaking point in such manner that the predetermined breaking point of at least one mandrel element arranged on the fastening flange is broken when the screw cap is unscrewed and thus indicates to the consumer that an initial opening has already taken place.

Resealable pouring element for cardboard/plastic composite packages with a tamper-evident seal to indicate the initial opening

The invention relates to a self-opening closure with a pouring spout (), a self-opening sleeve () which is guided in the connector in a helical manner, and a cover () which covers the pouring spout (). A driver cam () is formed on the self-opening sleeve, said driver cam defining a guide surface (). The cover has a driver () which defines a front edge (). The front edge interacts with the guide surface of the driver cam. The front edge and the guide surface are inclined by the same angle of inclination relative to the longitudinal axis in order to allow an optimal force transmission between the cover and the self-opening sleeve. Additionally, the guide surface can be designed in a concave manner, and the front edge of the driver can be rounded in a corresponding manner in order to prevent a radial deflection of the driver towards the inside.

Self-opening closure with optimized force transmission

Growing community of inventors

Fislisbach, Switzerland

David Koller