Sig Technology Ag

Mario Weist

Fritz Seelhofer

A pouring closure includes a flange for welding onto a combipack or to the foil material of a container sealed with the foil material, along with an upwardly projecting circular rim thereon and a rotatable combined lid and pouring nozzle that can be clipped onto the upwardly projecting circular rim, which forms a piercing edge arrangement. This piercing edge arrangement includes a part of a cap lid, which can be opened from the lid surface around a swinging axis. Two piercing cutters are on the lower side of this part of the cap lid behind its swinging axis and near the edge of the cap rim and are able to be folded up beyond a level of the lower side of the flange and to pierce the combipack or the membrane liner running below the flange. Thereafter, the lid and pouring nozzle is rotated on the flange rim, so that the two piercing cutters cut-out a disc, of approximately 360&#xb0;, from the combipack or the membrane liner after the folding upwards movement.

Pouring spout closure with a piercing cutter for composite packagings or containers sealed with film material

The self-opener closure consists of a pour-out spout () which may be sealingly assembled onto a composite packaging or onto a container spout or bottle spout to be closed with film material, of an associated rotary cap () as well as a self-opener sleeve () arranged within the pour-out spout () which may be set into rotation by the rotary cap (). Force transmission means and guide means are formed on these three elements. These cooperate with one another such that on rotating the rotary cap () in the opening direction for the first time the self-opener sleeve () firstly in the pour-out spout () may be pushed vertically downwards and subsequently may be rotated by approximately 360&#xb0; in the horizontal. Because the self-opener sleeve () at its lower edge and projecting from this comprises a single, combined piercing and cutting member () the film or the composite packaging is first reliably pierced and afterwards a disk is cut cleanly out of it and pivoted downwards.

Self-opening closure for composite packagings or for container or bottle nozzles for sealing with film material

The self-opener closure comprises a spout () having a projecting lower rim () which is to be molded or glued to a composite packaging, an associated rotary cap () as well as a self-opener sleeve () arranged within the spout (). This self-opener sleeve () can be made to rotate by the rotary cap (). The inner side of the spout () is provided with four guide webs having varying inclines arranged over its inner circumference. These interact with specially formed guide ribs at the outer wall of the self-opener sleeve (), which brings about that the self-opener sleeve (), when continuously rotated in the inside of the spout (), and by being guided at these guide ribs, describes an uneven downwardly directed movement, which superposes its rotational movement. Thus, the self-opener sleeve () first pierces the paper or cardboard laminate with the tip () of its lancing mandrel in a steep, screwline downwardly directed movement, and thereafter completes a horizontal rotational movement about 340&#xb0;, whilst it cuts a circular disk out of the laminate with its sharp cutting edge, and thereafter pivots this downwards and retains it in this position.

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Stuhlingen, Germany

Mario Weist