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1. WO1997019861 - AMELIORATIONS DANS LES RECIPIENTS A BOISSONS OU LES CONCERNANT

Note: Texte fondé sur des processus automatiques de reconnaissance optique de caractères. Seule la version PDF a une valeur juridique

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Claims

1 . A container (1 ) having a top (2) comprising a plate (3) which is disruptable at a zone of weakness (4) constituted by a tear line (4) defining in outline a tongue portion ( 1 1 ), the top further comprising actuating means (6) mounted on an outer face ( 1 0) of the plate and operable to cause tearing of the plate along the tear line and to displace the tongue portion relative to the plate to define a dispensing aperture (5); and filtering means ( 1 6; 30; 40; 50; 60;) mounted internally of the container and comprising a filter ( 1 6) and operable to support the filter at a deployed position adjacent or in contact with the plate at a location traversing the dispensing aperture.

2. A container as claimed in claim 1 wherein the actuating means is operable to inwardly displace the tongue portion relative to the container and wherein the filtering means is operable to support the filter in an initial position in which it overlays an inner face of the tongue portion prior to actuation of the actuating means, the filter being displaceable to an intermediate position at which it is spaced from an inner face ( 1 7) of the plate to accommodate inward movement of the tongue portion and being displaceable thereafter to the deployed position .

3. A container as claimed in claim 2 wherein the filtering means comprises a mounting portion (21 ; 31 ) fixedly mounted to the plate and supporting the filter so as to be deflectable relative to the mounting portion, and biasing means (53; 62) operable to bias the filter into contact with the plate in the deployed position.

4. A container as claimed in claim 3 wherein the mounting portion and the filter are constituted by a resilient filter member (60; 70) of unitary construction having a shape memory tending to bias the filter into contact with the inner face of the plate.

5 A container as claimed in claim 4 wherein the mounting portion is adhesively mounted to the inner face of the plate.

6. A container as claimed in any of claims 3 and 4 wherein the mounting portion is mounted to the plate by means of co-operating connecting formations (32; 41 ; 61 ).

7. A container as claimed in claim 6 wherein the connecting formations comprise a projection (32) formed integrally with the plate and received in a connecting aperture (41 ) defined in the mounting portion.

8. A container as claimed in any of claims 3 to 7 wherein the filter and the mounting portion are formed of the same material as the plate.

9. A container as claimed in claim 8 wherein the filter and the mounting portion are formed of aluminium.

10. A container as claimed in any of claims 3 to 9 wherein the filtering means comprises an elongate strip in sheet form having a first flat portion (51 ) constituting the mounting portion, a perforate second flat portion (52) constituting the filter and an intermediate portion (53) intermediate the first and second flat portions constituting the biasing means.

1 1 A container as claimed in claim 10 wherein the intermediate portion comprises a bowed portion (53) which overlays the mounting portion in spaced relationship thereto and wherein the bowed portion defines an access aperture (54) for facilitating access to the mounting portion during assembly

1 2 A container as claimed in claim 10 wherein the intermediate portion is constituted by a third flat portion (62) of the elongate strip which in the deployed position is co-planar with the first and second flat portions

13 A container as claimed in claim 12 wherein the elongate strip is arcuate in profile when viewed in projection orthogonally to the first flat portion so as to define a cut out (65) accommodating inward and outward movement of the actuating means relative to the plate.

14 A container as claimed in any of claims 2 to 1 1 wherein the tear line is discontinuous to thereby define a first bend line ( 1 5) about which the tongue portion is inwardly pivoted in use, and wherein the filter is deflectable about a second bend (23) line substantially at right angles to the first bend line.

1 5 A container as claimed in claim 14 wherein the first and second bend lines intersect at a fulcrum of the actuating means

1 6. A container as claimed in any preceding claim wherein the filter comprises a sieve of plastics material

1 7 A container as claimed in claim 1 6 wherein the sieve has a hole size in the range 2 to 5mm.

1 8 A container as claimed in any of claims 1 6 and 1 7 wherein the sieve comprises a grid in which a first set ( 1 8) of mutually parallel linear members is intersected by a second set ( 1 9) of mutually parallel members, and wherein the second hinge line is substantially parallel to the first members.

1 9. A container as claimed in any preceding claim comprising a beverage can

20 A container as claimed in any preceding claim wherein the filter comprises visible indicating means (72) visible via the dispensing aperture in the deployed position.

21 A container as claimed in claim 20 wherein the visible indicating means comprises a token for a competition

22. A container as claimed in any of claims 20 and 21 wherein the visible indicating means is constituted by the disposition of perforations provided in the filter.

23. A subassembly comprising a top and a filtering means as defined in any preceding claim.

24. A filtering means as defined in any preceding claim

25 A container having a top comprising a plate which is disruptable at a zone of weakness constituted by a tear line defining in outline a tongue portion, the top further comprising actuating means mounted on an outer face of the plate and operable to cause tearing of the plate along the tear line and to displace the tongue portion relative to the plate to define a dispensing aperture, and visible indicating means mounted internally of the container and comprising a token and means operable to support the token at a deployed position adjacent or in contact with the plate at a location traversing the dispensing aperture.

26 A method of dispensing liquid from a container comprising the steps of;
operating an actuating means to disrupt a plate forming a top of a container by tearing of the plate aiong a pre-formed tear line and inwardly displacing a tongue portion defined in outline by the tear line to form a dispensing aperture,
deflecting a filter mounted in an initial position adjacent an inner face of the plate to an intermediate position at which it is spaced from the inner face by displacement of the tongue portion;
further displacing the tongue portion to a position in which the filter is free to relax to a deployed position in which it extends in contact with or in proximity to the inner face of the plate to thereby traverse the dispensing aperture,
and dispensing liquid via the dispensing aperture.

27 A method as claimed in claim 26 including the step of displaying visible indicating means constituted by the filter so as to be concealed prior to operating the actuating means and to be subsequently revealed and visible via the dispensing aperture after the filter relaxes to the deployed position

28. A method as claimed in claim 27 wherein the visible indicating means comprises a token for a competition

29 A method as claimed in any of claims 26 to 28 including the step of arresting movement of the actuating means at a location such that the filter is held by the tongue portion at the intermediate position so as to be held clear of the inner face by the tongue portion;
and dispensing liquid via the dispensing aperture.

30. A method of dispensing liquid from a container comprising the steps of;
operating an actuating means to disrupt a plate forming a top of a container by tearing of the plate along a pre-formed tear line and displacing a tongue portion defined in outline by the tear line to form a dispensing aperture;
deflecting a visible indicating means mounted in an initial position adjacent an inner face of the plate to an intermediate position at which it is spaced from the inner face by displacement of the tongue portion;
further displacing the tongue portion to a position in which the visible indicating means is free to relax to a deployed position in which it extends in contact with or in proximity to the inner face of the plate to thereby traverse the dispensing aperture, thereby revealing the visible indicating means so as to be visible via the dispensing aperture; and
dispensing liquid via the dispensing aperture.

31 . A method of assembling a container as claimed in any of claims 1 to 1 9 comprising the steps of mounting a filtering means onto the inner face of the plate and subsequently joining the top to a body of the container.

32. A method as claimed in claim 31 wherein the filtering means is adhesively bonded to the plate.

33. A method as claimed in claim 31 wherein the filtering means is mounted to the plate by crimping or otherwise deforming a connecting formation.

34. A container substantially as hereinbefore disclosed with reference to and shown in any of the accompanying drawings.

35. A method of dispensing liquid from a container substantially as hereinbefore disclosed with reference to and as shown in any of the accompanying drawings.