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AssigneeGebr. Scheidt GmbH
InventorMarkus SCHEIDT
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A method for producing an extruded plastic sheeting material (12; 12′; 12″) having a multitude of parallel hollow chambers (14) in its interior, includes the steps of extrusion of a sheet of the sheeting material (12; 12′; 12″) that is continuous in the running direction (x) of the hollow chambers (14) while applying compressed air to the hollow chambers (14) from the inside, the production of weakening lines (16) in the sheet running transversely to the running direction (x) of the hollow chambers (14) by introducing creases (50) into the sheeting material (12), the depth of which is dimensioned in such a way that the hollow chambers (14) are not interrupted by the creases (50).
A method for producing an extruded plastic sheeting material comprising a multitude of parallel hollow chambers in its interior, comprising the steps of:
An extruded plastic sheeting material comprising a multitude of parallel hollow chambers in its interior, forming a sheet that is endless in a running direction of the hollow chambers and including weakening lines in the sheet, which weakening lines run transversely to the running direction of the hollow chambers and which are formed by creases inscribed in the sheeting material, the depth of which is such that the hollow chambers are not interrupted by the creases.
Dependencies are inferred from the claim text.