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AssigneeImpress Metal Packaging S.A.
InventorsJelmer Eelke Jongsma, Jean-Francois Jouillat
Estimating the term…
A container lid includes a ring (2) defining an opening (6), the opening (6) being closed by a membrane (7) of “peelable” type, which peelable membrane (7) is joined to a peripheral surface (L) of the ring (2), the joining surface (L) being delimited by an inner border (Li) and an outer border (Lo), by means of a layer of matter (16) known as sealant layer constituting a surface coating layer of the ring (2) and/or the peelable membrane (7). On at least a part of the circumference of the joining surface (L), the thickness of the sealant layer (16) is variable in the radial direction, that is to say on its width, forming a width of variable thickness, this thickness increasing on at least a part of the width of the joining surface (L), in the direction from its outer border (Lo) towards its inner border (Li).
Container lid comprising a ring (2) defining an opening (6), said opening (6) being closed by a membrane (7) of “peelable” type, which peelable membrane (7) is joined to a peripheral surface (L) of said ring (2), said joining surface (L) being delimited by an inner border (Li) and an outer border (Lo), by means of a layer of matter (16) known as sealant layer constituting a surface coating layer of said ring (2) and/or of said peelable membrane (7), characterised in that, on at least a part of the circumference of said joining surface (L), the thickness of the sealant layer (16) is variable in the radial direction, that is to say on its width, forming a width of variable thickness, this thickness increasing on at least a part of the width of said joining surface (L), in the direction from its outer border (Lo) towards its inner border (Li).
Dependencies are inferred from the claim text.