Sig Technology Ag

Sig Combibloc Services Ag

Markus Leuenberger

Markus Wassum

Hansjörg Huber

Sven Himmelsbach

David Koller

Jochen Kraus

Packaging for beverages

A self-opening and re-sealable pouring element of plastics material for application to a pack for liquids, and in particular a composite card/plastics material pack, has a base part which has an attaching flange, having a cutting element and a screw cap, the cutting element being rotatably arranged in the interior of the base part and operatively connected to the screw cap such that when the screw cap is unscrewed for the first time, an opening for pouring is produced by the cutting element in the material of the pack, wherein, when produced in an injection mold, the cutting element is already entirely arranged in the interior of the base part and is spaced away from the base part by a plurality of connecting bridges.

Self-opening and re-sealable pouring element of plastics material for application to a pack for liquids

The spout seal for combipacks consists of a bottom part () and a hinged lid () attached to it for opening and closing the seal. The bottom part () is fused onto a combipack with its level bottom side. It has a circular, upward-projecting overhang (), which forms a pouring spout. The inside of the overhang () is open. The lid () forms a mold () that bulges out upwards on it when swiveled open, which forms a level top side that form-fits into the clearance opening () surrounded by the projecting lip () in the bottom side of the bottom part () when swiveled shut. This level top side either lies flush with this bottom side of the bottom part () or projects downward from this bottom side by up to 0.5 mm. This top side of the bulge () is bonded with the punched-out spot in the combipack or fused with the sealing foil of a combipack exposed through punching. When swiveling the lid () open, the sealing foil is cleanly torn out in the entire clearance section of the bottom part ().

Pouring spout seal for composite packagings

Growing community of inventors

Thayngen, Switzerland

Markus Leuenberger