SHEET-MATERIAL PIERCER FOR A CONTAINER CLOSURE
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Accused Products
Abstract
A sheet-material piercer (1) for a container closure (2) of the push-pull type is of essentially rotationally symmetrical design and can be inserted into the container closure (2) in the direction of the axis of rotation of symmetry (R) such that it can be displaced axially independently of the push-pull part of the container closure (2). The sheet-material piercer (1) is in one piece and has at least one sealing formation (16, 17, 18) which is likewise of rotationally symmetrical design and is arranged between an actuating end (13) and a piercing end (14). The sealing formation (16, 17, 18) is designed for sealing and latching contact with the container closure (2). Also proposed is a container closure (2) for a container (3) with a so-called push-pull closure and such a sheet-material piercer (1).
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Citations
17 Claims
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1-9. -9. (canceled)
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10. A container closure (2) for a container (3) having a so-called ‘
- push-pull’
closure, comprising a sheet-material piercer (1), which is configured to be substantially rotationally symmetrical and can be inserted in the direction of the axis of rotational symmetry R axially displaceably in the container closure (2) independently from the push-pull part of the container closure (2),wherein the sheet-material piercer (1) is in one piece and has at least one sealing formation (16, 17, 18) which is likewise configured to be rotationally symmetrical and is arranged between an actuating end (13) and a piercing end (14) and is configured for sealing and latchable contact with the container closure (2), and wherein the container closure (2) comprises a cover part (5) which can be attached around a container opening and a sliding part (6) attached displaceably on the cover part (5) in such a manner that a drinking opening (20) can be released or closed by displacing the sliding part (6) on the cover part (5), wherein a tearable or piercable closure film (11) is attached to the cover part (5), whereby an additional chamber (12) tightly separated from the container content is formed in the inner chamber of the cover part (5) facing the sliding part (6), and the sheet-material piercer (1) is likewise attached displaceably in the cover part (5), wherein the closure film (11) can be torn apart or pierced by actuating the sheet-material piercer (1) and a substance which can be introduced into the additional chamber (12) can enter into the container (3), and wherein furthermore the additional chamber (12) of the container closure is configured tightly for accommodating a substance of liquid or powdery consistency and the closure film (11) in the intact state prevents an outflow of the container content through the drinking opening (20), the sheet-material piercer (1) and the sliding part (6) are displaceable independently from one another on the cover part (5) and the closure film (11) is firmly connected to the cover part (5), and the sheet-material piercer (1) can be inserted in sealing and latching manner into the cover part (5). - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
- push-pull’
Specification