Abstract:
The invention relates to a tamper evident closure cap (101). A tamper evident band is provided with an extension (107) having an upper edge (113) extending above an engagement surface (110) of a projection (109). The extension (107) and the projections (109) are arranged on an annular, circumferentially running band (105). When the closure is applied to a container, the extension (107) is clamped between the inner surface (114) of the tamper evident band or the closure and a retaining structure on a container finish.
Abstract:
A plastics closure (10) for a container is provided. The closure comprises a top plate (15), with a side skirt (20) depending from the periphery thereof. A sealing strip (45) depends from the top plate (15) and is adapted to sealingly engage a container neck finish (75). The closure (10) also comprises an abutment member (55) including a guide surface (65) for guiding the sealing strip (45) towards the neck finish (75) as the closure is applied, to increase the strength of the seal. The guide surface comprises a guide member (65) which projects from the abutment member (55), thereby minimising friction between the strip (45) and the abutment member (55). The sealing strip (45) is inclined radially towards the neck finish to improve the sealing effect.
Abstract:
A closure for a container comprising a circular base (20, a skirt (30) extending from the periphery thereof, an outer seal (60) and a plug seal (50) in the form of an annulus and at least one rib (80) lying on the surface of the base (20) in a substantially radial direction and in contact with the radially inner surface of the plug seal (50) at one end for transferring any movement of the base (20), relative to the skirt (30), to the plug seal (50) such that the plug seal (50) is pulled radially inward to allow venting of excess pressure within the container, whereby the outer seal (60) of the closure comprises at least one deformation portion (65) which interrupts partially the sealing effect of the outer seal (60) in case overpressure occurs.
Abstract:
A closure assembly has a closure cap (2) adapted to be fitted to the neck of container to close the container. The cap (2) has an upper wall (4) and a cylindrical skirt (5) depending therefrom. A reservoir (7) is formed on the underside of the upper wall (4) radially within the skirt (5) and has a dispensing opening (9). A closing member (3) is fitted into the closure cap (2) to close the dispensing opening in the reservoir. When the closure cap (2) is removed from the container, the closing member (3) remains held within the neck of the container and is separated from the closure cap so that the dispensing opening is opened and material contained therein is dispensed into the container. The closure cap is provided with sealing mans for directly sealing against the neck of a container such as an annular wall (12) extendin downwardly from the underside of the upper wall of the closure cap (2) to fit sealingly into the neck of the container.
Abstract:
The invention relates to a tamper evident closure cap (101). A tamper evident band is provided with an extension (107) having an upper edge (113) extending above an engagement surface (110) of a projection (109). The extension (107) and the projections (109) are arranged on an annular, circumferentially running band (105). When the closure is applied to a container, the extension (107) is clamped between the inner surface (114) of the tamper evident band or the closure and a retaining structure on a container finish.
Abstract:
A closure (1) comprising a cap part (10) and a tamper evident band (20) having a retaining bead (21) with a retaining surface (22) for retaining the tamper evident band below a corresponding retention bead (31) of a container (30), the closure further comprising connecting bridges (23) removably connecting said tamper evident band (20) to the cap part (10), wherein the connecting bridges (23) are arranged on an inner surface (24) of the tamper evident band (20) and extend axially from a lower edge (11) of the closure cap to the retaining surface (22), wherein the connecting bridges (23) are adapted so that the radius of their inner surface is less than the outer radius of the retention bead (31) of the container, so that with the closure (1) fitted to the container (30) the tamper evident band (20) takes the form of a non-circular polygon, and wherein the retaining surface (22) is adapted so that when fitted to the container (30) it is retained below the corresponding retention bead (31) of the container about the entire circumference of the closure.
Abstract:
In order to improve the gas-venting characteristics of bottles containing fizzy drinks, the invention calls for the bottle finish (1) and cap (11) to have a double screw thread made up of two threads (3, 13) which extend through an angle of between 240 DEG and less than 360 DEG , preferably 280 DEG , and which are staggered at 180 DEG with respect to each other, thus forming on the outside surface (2) of the bottle finish (1) first zones (5) in which the threads (3) overlap in the vertical plane and second zones (16) in which there is only one thread (3) in the vertical plane. Likewise, the inside surface (12) of the cap (11) has first zones (15) in which the threads (13) overlap in the vertical plane and second zones (16) in which there is only one thread (13) in the vertical plane. In each of the zones (5, 6, 15, 16), there is in each thread (3, 13) at least one gas-venting gap (4, 14).
Abstract:
A compression failure resistant tamper evident bottle cap includes a skirt (14) with a lower edge, and a tamper-evident band (24) formed integrally with the skirt and having structure for engaging beneath a retaining flange (30) on the bottle so as to prevent subsequent withdrawal of the band. Frangible bridges (26) connect the band to the lower edge of the skirt. To prevent destruction of the bridges as the cap is forced onto the bottle during installation, the skirt has one or more tabs (32) or the like, extending downward over a portion of the band, for preventing undue diametral expansion of the tamper evident band as it passes over the retaining flange.
Abstract:
The present invention relates to a closure assembly comprising a closure spout (1) adapted to be fitted to the neck of a container and a closure cap. The closure spout (1) comprises a dispensing opening. The closure cap comprises an upper wall and a skirt depending therefrom, adapted to be fitted to the closure spout to close the container, especially for use on pressurized containers such as carbonated beverage containers. At least one substantially continuous second retaining arrangement (5) on said closure spout (1) has one ore more elongate second retaining segments (6). The lower second retaining surface (8) has no pitch or at least a relatively lower pitch in a first region (9), a relatively higher pitch in a second region (10) displaced from the first region (9) in an unscrewing direction (30) and has no pitch or at least a relatively lower pitch in a third region (11) displaced from said second region (10) in a unscrewing direction (30).
Abstract:
This invention relates generally to the field of tamper evident closure caps (1; 101) comprising a top panel (2) and a cylindrical skirt (3) depending from the periphery of the top panel (2) and to combinations of a closure cap (1; 101) and a container (20). According to the invention the closure cap (1; 101) comprises a tamper indicating band (4), frangibly connected to the open end (5) of the skirt (3), wherein the tamper evident band (4) at its lower edge (6) comprises at least one hingedly connected retaining element (7), which extends with its distal edge (8) radially inwardly and towards the top panel (2) when the cap (1; 101) is in the screwed on position. The retaining element (7) has at least one recess (9), forming a window or a hollow. The recess (9) is located in a distance (10) from the hinged connection (11) between the lower edge (6) of the tamper indicating band (4) and the retaining element (7) and is located in a distance (12) from the distal edge (8) of the annular retaining ring (7).