Process for covering cut edge of a container opening with protective layer
AssigneeRuediger Haaga GmbH
InventorsWerner Stahlecker, Berthold Mueller
Life of this patent
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Abstract
A container comprises an opening whose cut edge is covered by a protective covering layer. The protective covering layer is formed to have a tube-shaped area in which a plane area is joined to both ends. The tube-shaped area covers the cut edge of the opening. One plane area adheres to the container inner surface, and the other plane area adheres to the container outer surface. The protective covering layer is made from a single foil piece which is applied to the container wall comprising the opening and thereafter shaped into its form. At least one of the plane areas is thus formed and adhered to the container wall.
Claims9
A container, comprising at least one wall with an opening having a cut edge and a unitary, sheet-like protective covering layer capable of being initially applied to the wall from only one side thereof to cover with a first planar portion thereof an inner surface of the wall and with a second planar portion thereof an outer surface of the wall in an area bordering only the opening and thereby forming a middle portion facing the cut edge with the first planar portion covering an area of the inner surface larger than an area of the outer surface covered by the second planar portion.
Dependencies are inferred from the claim text.