A structure of a mouth plug portion includes a nozzle and a cap, the nozzle includes a first outer protrusion and a second outer protrusion, the first outer protrusion includes a locking surface that locks the cap and a first guide surface spirally extending, the cap includes a cap body and a tamper band provided with a weak portion that can be broken by an external force received from the second outer protrusion during rotation of the cap body, the cap body includes a first inner protrusion and a second inner protrusion, an outer peripheral surface of the nozzle is provided with a second guide surface along which the first inner protrusion and the second inner protrusion can move in an axial direction.

A structure of a mouth plug portion includes a nozzle and a cap, the nozzle includes a first outer protrusion and a second outer protrusion, the first outer protrusion includes a locking surface that locks the cap and a first guide surface spirally extending, the cap includes a cap body and a tamper band provided with a weak portion that can be broken by an external force received from the second outer protrusion during rotation of the cap body, the cap body includes a first inner protrusion and a second inner protrusion, an outer peripheral surface of the nozzle is provided with a second guide surface along which the first inner protrusion and the second inner protrusion can move in an axial direction.

In a closure assembly the cap is a quarter-turn cap and the bottom end of the skirt has a pair of diametrically opposed static cover portions separated from one another by a pair of diametrically opposed and open bottomed notches in the skirt. In each notch an indicator segment of the tamper-evident structure is located that is integrally molded to an upper notch rim by a non-frangible hinge, preferably a film hinge, and to each of the leading rim and the trailing rim via at least one respective frangible bridge. The neck has for each indicator segment an integrally molded boss adapted to engage on a respective indicator segment such that, upon first time opening of the cap by quarter turn rotation in opening direction, the indicator segments are each forced outwardly by the respective boss such that each of the indicator segments pivots about the non-frangible hinge and the frangible bridges break, thereby the outwardly pivoted indicator segments and the broken frangible bridges evidencing the first time opening of the cap.

In a closure assembly the cap is a quarter-turn cap and the bottom end of the skirt has a pair of diametrically opposed static cover portions separated from one another by a pair of diametrically opposed and open bottomed notches in the skirt. In each notch an indicator segment of the tamper-evident structure is located that is integrally molded to an upper notch rim by a non-frangible hinge, preferably a film hinge, and to each of the leading rim and the trailing rim via at least one respective frangible bridge. The neck has for each indicator segment an integrally molded boss adapted to engage on a respective indicator segment such that, upon first time opening of the cap by quarter turn rotation in opening direction, the indicator segments are each forced outwardly by the respective boss such that each of the indicator segments pivots about the non-frangible hinge and the frangible bridges break, thereby the outwardly pivoted indicator segments and the broken frangible bridges evidencing the first time opening of the cap.

In a closure assembly the cap (20) is a quarter-turn cap and the bottom end of the skirt has a pair of diametrically opposed static cover portions (23, 24) separated from one another by a pair of diametrically opposed and open bottomed notches (33, 34) in said skirt. In each notch an indicator segment (41, 42) of the tamper-evident structure is located that is integrally molded to an upper notch rim by a non-frangible hinge (43, 44), preferably a film hinge, and to each of said leading rim and said trailing rim via at least one respective frangible bridge (45, 46, 47, 48). The neck (2) has for each indicator segment an integrally molded boss (12, 13) adapted to engage on a respective indicator segment such that, upon first time opening of the cap by quarter turn rotation in opening direction, the indicator segments are each forced outwardly by the respective boss such that each of said indicator segments pivots about said non-frangible hinge and said frangible bridges break, thereby said outwardly pivoted indicator segments and said broken frangible bridges evidencing the first time opening of the cap.

In a closure assembly the cap (20) is a quarter-turn cap and the bottom end of the skirt has a pair of diametrically opposed static cover portions (23, 24) separated from one another by a pair of diametrically opposed and open bottomed notches (33, 34) in said skirt. In each notch an indicator segment (41, 42) of the tamper-evident structure is located that is integrally molded to an upper notch rim by a non-frangible hinge (43, 44), preferably a film hinge, and to each of said leading rim and said trailing rim via at least one respective frangible bridge (45, 46, 47, 48). The neck (2) has for each indicator segment an integrally molded boss (12, 13) adapted to engage on a respective indicator segment such that, upon first time opening of the cap by quarter turn rotation in opening direction, the indicator segments are each forced outwardly by the respective boss such that each of said indicator segments pivots about said non-frangible hinge and said frangible bridges break, thereby said outwardly pivoted indicator segments and said broken frangible bridges evidencing the first time opening of the cap.

A tamper-evident cap (2) for engagement to a container closure plug (100), the cap including a panel (10) having a container closure plug-facing side and a preweakened region defining a tear strip (17), the tear strip having a tear strip pin (30) extending from the closure plug-facing side and configured for receipt by the container closure plug, a sidewall (12) extending from the closure plug-facing side, and a center post (20) extending axially from a central region of the panel, wherein the center post is configured to engage the container closure plug, the center post having a post preweakened region.

A tamper-evident cap (2) for engagement to a container closure plug (100), the cap including a panel (10) having a container closure plug-facing side and a preweakened region defining a tear strip (17), the tear strip having a tear strip pin (30) extending from the closure plug-facing side and configured for receipt by the container closure plug, a sidewall (12) extending from the closure plug-facing side, and a center post (20) extending axially from a central region of the panel, wherein the center post is configured to engage the container closure plug, the center post having a post preweakened region.

A combined bottle and cap assembly has a cap assembly secured to a bottle by snap-fit engagement. The cap assembly has downwardly directed ramps on an underside and bottle has upwardly directed ramps on a top wall. When the cap assembly is rotated relative to the bottle, the downwardly directed ramps cooperatively engage the upwardly directed ramps to lift the cap assembly from the bottle sufficiently to disengage the snap-fit engagement and allow cap assembly to be easily lifted from the bottle.

A closure assembly comprises an article (10, 10, 10, 410) and a cap (40, 40, 40, 40, 440) provided with an integrated tamper-evident ring member (50, 50, 50, 450). The article further comprises a circumferential flange structure (20) with an annular flange portion and a peripheral protective rim portion (25) so that the top face (21a) of the flange portion and the protective rim define an annular recess (30) around the neck (14). The tamper-evident ring member is integrally formed to the lower edge of the skirt (42) of the cap via one or more breakable bridges (70). The ring member comprises an annular ring member flange portion (51) that has a top face (51a) and a bottom face (51b). Multiple hook members (53) are integrally formed to the bottom of the ring member flange portion, and the annular flange portion on the neck is provided with multiple hook member passages (1S). Each hook member passage is adapted to receive a hook member when the cap with the integrated tamper-evident ring member is axially mounted on the neck by means of an axial securing motion, wherein the hook portion (55) of each hook member snaps underneath the bottom face (21b) of the annular flange portion on the neck of the article. The periphery of the annular flange portion of the ring member is shaped to fit within the protective rim portion and the rim portion obstructs lateral access from outside to the interface between flange portions.