Opening device
AssigneeTetra Laval Holdings & Finance S.A.
InventorsHenrik Holm, Lennart Stillerud
Life of this patent
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Abstract
An opening device comprising a removable membrane (11) connected to a pulling device (12). The pulling device (12) is connected to the membrane (11) at its opposed ends (13, 14) so as to define a pull ring. Weakening arrangements (15, 16) are provided at said opposed ends to initiate the tearing off of the membrane.
Claims10
Opening device for a package comprising a removable membrane (11) and a pulling device (12) connected to the membrane (11), wherein the pulling device (12) is adapted to extend at least over a portion of the membrane (11) and wherein the pulling device (12) at its opposing end portions (13, 14) is connected to a portion of the package for the formation of a pulling loop in order to make removal of the membrane (11) possible, characterised in that the pulling device (12) is fixedly connected to the membrane (11) at said end portions (13, 14) and that means (15, 16) for facilitating the initial tearing off of the membrane (11) is provided at said end portions (13, 14).
Opening device according to any of the preceding claims, characterised in that the membrane (11) is circular and that the pulling device (12) extends diametrically across the membrane (11).
Opening device according to anyone of the preceding claims, characterised in that it is injection moulded from a plastic material integrally with an end surface of the package.
Opening device according to anyone of the preceding claims, characterised in that the opening device comprises a screw cap covering the membrane (11).
Dependencies are inferred from the claim text.