Abstract: The present invention relates to a cap for covering an opening of a container, preferably the opening of a bottle. The present invention is characterized by a cork body having a cylindrical configuration and configured in two portions between which there is arranged an impermeable sheet element according to the longitudinal direction. The presence of an impermeable sheet allows using a conventional closure material preventing permeability in the longitudinal direction both to prevent the liquid from coming out of the container and to prevent bacteria or contaminants from the outside from entering.

Abstract: A humidity control system includes a cap including a retention element at an inner surface of the cap, the inner surface of the cap defining an interior volume of the cap, and a package in the interior volume of the cap, the package including a humidity control substance configured to control humidity and a retainer including a sealing interface to enclose the humidity control substance, the retainer being configured to engage the retention element. The package and the inner surface of the cap define a shielded volume.

Abstract: The invention relates to a capsule (1) for a flanged cork stopper, the capsule (1) having a body (2) comprising a top (3) and a cavity (4) inside which at least two anti-rotation splines (5) are arranged, and the capsule further comprising an axial retention chamber (6) disposed within said cavity (4), wherein retention chamber (6) is shaped to receive and axially retain a flange of a flanged cork stopper. The invention also relates to a capsulated stopper comprising a flanged stopper, the flange of which is attached to the capsule (1) of the invention. The invention further relates to the production process of said capsulated stopper.

Abstract: A connector for medical fluid vessels includes a fluid-seal fitting such as a male plug defining a lumen and mating with a cooperating connector, a mechanical fastener such as a screw thread for mating with the cooperating connector, and an outer housing positioned around the plug to form an annular space. A cap can be provided with a fluid-seal fitting such as a male plug for mating with the lumen of the connector. In example embodiments, the male plug is tapered and can comprise one or more projections for sealingly engaging with the lumen of the connector. According to some example embodiments, the cap can be tethered to the connector.

Abstract: Disclosed are a method and/or a system of a fan attachment to disposable containers and a means for attachment of the fan to disposable containers. An adaptable spray fan includes a disposable container section formed of a polyethylene material to hold a potable liquid and a reusable fan apparatus coupled to the disposable container section. The reusable fan apparatus is coupled to the disposable container section through an adjustable coupling mechanism of the reusable fan apparatus and/or a separate attachment coupleable with the reusable fan apparatus. The adjustable coupling mechanism and/or separate attachment secure reusable fan apparatus to the disposable container section at an opening of the disposable container section.

Abstract: A portable drinking vessel assembly removably engages an open end of a bottle neck to enable drinking directly from a bottle while aerating the liquid. The assembly comprises a vessel defined by a side wall, a bottom portion forming a bottom opening, and a top portion forming a top opening. A tapered conduit defined by a wide end and a narrow end integrally joins with the vessel through the wide end, and detachably attaches to the bottle through the narrow end. The liquid is aerated while flowing from narrow end, to wide end, and finally into the vessel. A silicone sleeve having ribs encapsulates a longitudinal portion of the conduit. The ribs engage an inner surface of the bottle neck to create a self-tapping rotatable action in the bottle neck, and a seal against the inner surface of bottle neck. The vessel joins a stand to remain upright.

Abstract: A closure having a base with a piercable part, defined by a sidewall extending transversally with respect to the base and a bottom thereby creating an indent therein, the sidewall and/or bottom provided with several lines of weakened material strength, wherein the lines divide the sidewall and/or bottom in several wedge formed parts.

Abstract: A lid assembly is provided comprising a lid main body and a lid valve subassembly removably attachable to the lid main body. The lid main body includes an upper portion having a drinking aperture and a first attachment element positioned below the upper portion in a lid cavity. The lid valve subassembly includes a subassembly main body, a sealing member, and an attachment collar rotatably attached to the subassembly main body. The attachment collar may be rotatable about an axis of rotation relative to the subassembly main body to selectively transition the lid assembly between an integrated configuration with the lid valve subassembly secured to the lid main body and a cleaning configuration with the lid valve subassembly separated from the lid main body. A second attachment element on the lid valve subassembly may engage with the first attachment element to releasable secure the lid assembly in the integrated configuration.

Abstract: The invention relates to a self-extracting stopper which can be accommodated inside the neck of the bottle, and which does not require a corkscrew or any other tool for the extraction thereof, formed by an assembly of parts preferably made of a plastic material and which, once assembled, permit a bottle or container to be stoppered. The face of the drum (8) and the surface of revolution of the flexible cylinder (4) can also carry marks that are engraved or in shallow relief. In this way, the assembly of the self-extracting stopper is formed by six elements and a cork cover (1), a nut (2), a flexible cylinder (5), a drum (8), a screw (12) and a wing nut (15), all of which are disposed and assembled according to their axial geometry, and which permit a method and process to be provided whereby bottles and/or containers can be stoppered or opened manually or automatically, and said self-extracting stopper being reusable.

Abstract: A seal for a closure assembly that includes a seal ring; and a carrier being coupled to the seal ring, extending circumferentially and radially outwardly of the seal ring to a radially outer periphery, and having a circumferentially extending pocket in the radially outer periphery adapted to release a vacuum pressure.

Abstract: A sealed valve box assembly includes a valve box lid made of a rigid material, a valve box body made of a rigid material, and an annular sealing gasket made of a resilient compressible material. The valve box body has a central opening in which an annular void is created when the valve box lid is inserted therein with a circumferential row of spaced apart vertical protuberances on the valve box lid. The annular sealing gasket has a circumferential row of spaced apart vertical channels matching the circumferential row of spaced apart vertical protuberances such that the vertical channels on the annular sealing gasket interfit with the vertical protuberances on the valve box lid so as to provide an air-tight press-fitted sealed relationship between the valve box lid and valve box body.

Abstract: A closure for a bottle includes a wooden head portion and a stopper portion. The wooden head portion has a recess formed therein. The stopper portion has a polymer inner member and a polymer outer member. The polymer inner member includes a first part embedded in the recess in the wooden head and a second part extending away from the wooden head and substantially covered by the polymer outer member.

Abstract: An apparatus and method for coating an end of a stoppered beverage bottle in wax are provided. A cap assembly is positioned over a mouth of the bottle prior to coating the end of the bottle in wax. The cap assembly may facilitate removal of a portion of the wax from the bottle to allow removal of the stopper and dispensing of the beverage. In an implementation, the cap assembly includes a cap portion sized to be received over at least a portion of a bottle mouth and the stopper. A spike protrudes downwardly from the cap portion, and is configured to at least partially pierce a bottle stopper. A tear ring is frangibly attached to the cap portion by one or more regions of mechanical weakening. A pull tab extends outwardly from the tear ring to facilitate frangible separation of the tear ring from the cap portion.

Abstract: Foreign material exclusion devices adapted to be positioned in a construction, for example a tube or pipe to temporarily seal off one side of the construction from another. The device includes a resilient body surrounded by an enclosure that substantially conforms to the shape of the body. At least one internal support component aids in connecting the enclosure to the body and provided reliable, consistent alignment between the body and enclosure.

Abstract: The invention relates to a method for assembling a device for packaging a cosmetic product, said device comprising: a glass container, said container having an opening, one edge of said opening forming a bead; a closure piece having a base with a shape substantially complementary to that of the opening in the container; a locking piece; the closure piece is mounted on the glass container by elastic fitting of the side walls around the bead, by moving the bead in translation towards the base of the closure piece, said elastic fitting ensuring sealed contact between the closure piece and the edge of the container; the locking piece is force-fitted around the side walls of the closure piece.

Abstract: A bottle closure includes a closure element and a cap element. The closure element is configured to be received at least in part within a portion of a bottle. The closure element includes a first portion of a first material and a second portion of a second material. The second material has a lower durometer hardness than the first material. The second material is moldably bonded to the first material. The closure element defines a hollow interior. The cap element is coupled to the closure element.

Abstract: The present invention provides, medical rubber parts that do not physically and chemically affect the quality of preparations. The present invention relates to a medical rubber part obtained by press-molding an unvulcanized rubber mainly containing a rubber for forming a liquid-contacting portion and an unvulcanized rubber mainly containing a butyl-based rubber for forming a non-liquid-contacting portion, wherein a color difference dE between the liquid-contacting portion and the non-liquid-contacting portion is 6.0 or more in NBS units.

Abstract: This disclosure provides systems, apparatuses, and methods for liquid transfer and performing reactions. In one aspect, a system includes a liquid transfer device having a housing having a pipette tip and a plunger assembly; and a reaction chamber, wherein the housing of the liquid transfer device is configured to sealably engage with the reaction chamber. In another aspect, a liquid transfer device including a housing having a pipette tip; and a plunger assembly disposed within the housing and the pipette tip, wherein a portion of the plunger assembly is configured to engage a fluid reservoir such that the plunger assembly remains stationary relative to the fluid reservoir and the housing moves relative to the plunger assembly.

Abstract: An apparatus operable to seal an opening in an aircraft fuel tank during a pressure test of the fuel tank is described. The apparatus includes a substantially dome shaped body having a perimeter. The body further includes a rim extending in an orthogonal direction about the perimeter and a flange extending in a normal direction from the rim and about the perimeter. The flange is sized to engage the fuel tank about the opening. The apparatus further includes a sealing gasket proximate an intersection of the rim and the flange, extending completely around the perimeter. The seal is oriented to provide a sealing function between the fuel tank and the body as pressure is increased within the fuel tank.

Abstract: A two-piece stopper includes a stopper core and a stopper sleeve. The stopper core includes a core body, a top flange and a sleeve flange. The top flange is formed on a top of the core body and the sleeve flange is formed on a bottom thereof. At least one hole is formed through the core body to receive a glass tube or the like. At least one o-ring groove is formed in the at least one hole. An o-ring is inserted into each o-ring groove. A counterbore may be formed in the core body to receive a hose barb. The hose barb is threaded into the counterbore to retain a flexible tube. The stopper sleeve includes a cylindrical inner diameter and a tapered outer diameter. The stopper sleeve is retained between the top and the sleeve flanges. A second embodiment of the stopper utilizes the stopper sleeve only.

Abstract: A liquid stopper for an electronic cigarette, includes a main body configured for stopping a tobacco liquid of the electronic cigarette. The main body includes a bottom surface, at least one wire hole in communication with the bottom surface, and at least one wire groove formed in the bottom surface and in communication with the at least one wire hole. The at least one wire hole is configured to receive at least one conductive wire of the electronic cigarette, and the at least one wire groove is configured to guide the at least one conductive wire to a peripheral wall of the main body. An electronic cigarette using the liquid stopper is also provided.

Abstract: A device includes a first body having a curved wall with a top surface that slopes away from the first body and a second body having an interior configured to receive the curved wall of the first body, the interior including a curved ramp with a sloped bottom ramp surface. The second body is mounted on the first body with the bottom surface of the curved ramp resting on the top surface of the curved wall. A compressible seal extends from the first body bottom, and a shaft projects from the second body through a passage in the first body and into the interior of the compressible seal. Rotating the bodies relative to each other causes the shaft to pull the seal against the first body and radially expand the seal against an interior wall of an opening in which the device is placed to form a seal therewith.

Abstract: The invention concerns a wire-cap capsule (1) intended to be interposed between a wire-cap (2) and a stopper intended to plug a neck of a bottle containing an effervescent liquid, said capsule comprising three grooves (10, 11, 12) provided on a first face to each accommodate a portion of a leg (20, 21, 22) of the wire-cap, said grooves meeting at the centre of the capsule to form a Y, characterised in that the capsule (I) is rigid, non-metallic, obtained by moulding and/or recyclable and optionally decorated. The capsule according to one preferred embodiment allows the cage of the wire-cap to be held by force by fastening at lugs (13). The invention also relates to a closure system comprising said capsule.

Abstract: Disclosed is a closure device for a container, which seals an opening (6) that opens at the top of a container (2) and has a rim (7) on its periphery. The closure device comprises a seal member (8) that is to cover the opening (6) on the top of the container (2), and a synthetic resin cap (9) that is to press the seal member (8) against the upper surface of the rim (7). The seal member (8) comprises a flange (10) to be mounted on the upper surface of the rim (7). The cap (9) comprises a top wall (15), a cylinder part (16), and a locking part (18). The top wall (15) is to be disposed above the flange (10). The cylinder part (16) hangs down from the outer circumference of the top wall (15). The locking part (18) is disposed on the inner surface of the cylinder part (16). After the cap (9) is pushed down, the locking part (18) locks at the under surface of the rim (7). The upper surface of the flange (10) has a compressible projection (29).

Abstract: A closure for a bottle includes a stopper portion and a head portion. The stopper portion has an axial length and a first width. The stopper portion is configured to be received at least in part within a bottle. The stopper portion has a wooden inner part and a polymer outer part. The head portion has a second width that exceeds the first width. Continuities in the wooden inner part strengthen the mechanical connection between the polymer outer part and the wooden inner part.

Abstract: The instant disclosure relates to an anti-tampering composition for use with capsules and corks of a wine closure or other good or article, including a composition comprising a natural wax and an ink present in the natural wax, the composition being suitable for printing on various substrates and having high stability, and having at least 60 wt % natural wax based on the total weight of the composition. Also provided are methods of detecting exposure of an article or good to elevated temperatures, and methods of making an anti-tampering system for a good or article such as a beverage bottle capsule or cork.

Abstract: Systems, methods, and means for providing a novelty item are provided. In some embodiments, a stopper comprises a body, having an inner chamber and a top portion, a novelty item disposed within said inner chamber, and a cover to open after said inner chamber is removed from a neck of a bottle.

Abstract: A stopper device including a stopper, cap and ring provided with tabs for locking onto a container neck and a body for handling the ring. The body includes a first mechanism for transmitting a thrust force to the ring and a second mechanism for activating the tabs. The ring and the handling body are respectively provided with first and second retainers that hold the handling body in a waiting position. The handling body is mobile parallel to the thrust force direction and in relation to the ring, between a first position activating the tabs of the ring and is mobile in translation only in the thrust force direction, and a second position that also activates the tabs and is immobilized in relation to the ring in axial translation. The tabs extend from a continuous edge of the ring and are each arranged in an opening with a closed contour.

Abstract: Closing element for sealing holes subjected to internal pressure includes a hollow cylindrical main body insertable into the hole substantially without play, and a hat-like spreading element pressable into the main body. The spreading element applies radial pressure to the inner wall of the main body in the installed state, wherein the main body is spread and pressed against the wall of the hole. The main body has a closing bottom having a circumferential radial ring surface and a slightly conical cone surface connected thereto. During operation, the closing bottom is pressed against the end face of the spreading element by the internal pressure and is bent over inner and outer edges of the end face and deformed so as to expand radially. This results in strengthened anchoring of the closure in the material of the component, and self-reinforcement of the press-out force required to remove the closure.

Abstract: A stopping device for a container, comprising a circular stopper for closing the neck of the container, and a cap comprising a synthetic material that covers the neck and the stopper positioned in the neck, the cap comprising a cover and a ring for surrounding the stopper and the neck, the ring having a minimum inner diameter larger than the maximum diameter of the stopper, the ring and the cover being produced as a single component and connected by breakable bridges distributed over a circumference of the ring with an inner diameter that is larger than or equal to the maximum diameter of the stopper, and first locking tabs formed on the inside of the ring facing windows that are radially open towards the outside, and second locking tabs facing a closed part, each second tab formed between two first tabs, facing a strip of material separating windows.

Abstract: The present invention pertains to a stopper (1) for closing a dispensing opening (70) of a container (8). The stopper comprises a body element (2) for closing the dispensing opening, the body element having a top face (20) and a bottom face (22), the bottom face being directed towards the inside of the container; a moving element (3) which is situated at the top face (20) of the body element (2), wherein the moving element is movable relative to the body element from an initial position in which the moving element does not extend beyond the outer extension of the top face (20) in the plane of the top face of the body element, to an opening position in which the moving element is moved relative to the body element to extend at least partly beyond the outer extension of the top face (20) of the body element (2) in the plane of the body element, wherein the moving element provides, in the opening position, a gripping surface (32) for a user to remove the body element from the dispensing opening.

Abstract: A pouring port of a container for liquid at one end of which a rubber stopper allowing the penetration of an injection needle therethrough is embedded, wherein: the pouring port is formed by welding a port part, at least the innermost layer of which forming the discharge channel thereof comprises a resin containing a COP-based resin as the main component, with a stopper body part, which holds the rubber stopper and comprises a resin containing a COP-based resin as the main component, via the resin layers containing the respective COP-based resins as the main component; and at least the resin constituting the stopper body part contains a rubber component in an amount of not more than 30% by mass, or has, in the main chain, a molecular structure represented by general formula (1) [wherein R represents a hydrogen atom or an organic group having 1 to 20 carbon atoms; and n represents an integer equal to or greater than 1] and contains a PE-based resin in an amount of 30% by mass or less, and/or contains an a

Abstract: System, apparatuses, and methods for performing automated reagent-based analysis are provided. Also provided are methods for automated attachment of a cap to a reaction receptacle, and automated removal of a cap from a capped reaction receptacle.

Abstract: An anti-taint molded barrier tip system has a primary component and a tip component. The primary component is formed of an upper section, a lower section, and an intermediate section. The upper and lower sections are cylindrical. The diameter of the lower section is less than the diameter of the upper section. The intermediate section is formed as a cylindrical notch with a diameter less than the diameter of the lower section. The tip component has an exterior surface and a lower surface and an annular upper surface. The tip component has a recess extending downwardly from the annular upper surface. The recess has an enlarged cylindrical lower region receiving the lower section of the primary component. The recess has a cylindrical upper region receiving the intermediate section of the primary component.

Abstract: A stopper includes a hollow casing with a resilient, ribbed sleeve that forms a valve seat. An interior plunger has a tip configured to mesh with the valve seat when in its down position and to open the valve when in its up position. An upper flange in the plunger provides an additional seal and is visible through a transparent wall in the casing. A vacuum in the bottle draws the plunger downward increasing the pressure with which the plunger presses against the seat, thus securing a long-lasting seal that maintains the vacuum in the bottle. When the vacuum is released, the resilience of the seat structure pushes the plunger upward, rendering it visible as an indicator of vacuum through the transparent wall. An opening in the casing allows connection to a pump to create the vacuum in the bottle.

Abstract: A system includes a cap having an opening, and a septum configured to engage with the cap. The septum includes a first portion having a first width, and a second portion having a second width smaller than the first width. The second portion is sized and shaped to be received by the opening of the cap.

Abstract: A stoppering device to be secured to a container neck includes a tubular spout defining a passage opening, and a plug. The plug has an outer tubular shell sliding on the tubular spout, and a bottom provided with a sealing skirt and multiple distribution holes. The bottom of the plug engages with the connecting wall of the tubular spout in the plugging position, while preserving an annular retention space between the bottom of the plug and the tubular spout. The bottom includes radial ribs which are in an alternating arrangement between the distribution holes, and constitute retention facets retaining the liquid held in the retention space by adhesion. The small volume of liquid which, during the plugging phase, would be prevented from flowing back into the container closed by the stoppering device, can remain in the annular retention space without any particular risk of abrupt ejection, the retention being promoted by the presence of multiple walls in the chamber, in particular the retention facets.

Abstract: A reusable bottle cap having identification means coupled to a novel bottle cap cover is disclosed and described herein. In a specific embodiment, the bottle cap has a stem having a series of successive U-shaped grooves or ridges. A slight taper in the stein provides that bottles of varying diameters can be accommodated by a single design. Further, the design is made from pliable polyethylene or polyurethane material to form an effective seal to the mouth of bottles of varying diameter. In a preferred embodiment, the novel bottle cap cover is generally bell (or alternatively barrel or conical) shaped and has a crown, a mid-portion, and a mouth portion. The mouth portion further has a lip wherein an inner recessed groove is machined around a circumference thereof. Additionally, the bottle cap comprises a flanged ring portion having a complementary lip to mate with the groove of the bottle cap cover.

Abstract: A composite synthetic cork is provided, wherein the synthetic cork is operatively coupled with a cap via an interlocking contour. In an exemplary embodiment, the interlocking contour(s) is molded on or within an otherwise flat bottom portion of the cap. In other exemplary embodiments, the cap and the cork are assembled via co-injection molding.

Abstract: Compound bung-type stopper assemblies for wine and spirits barrels, comprising a body having an enlarged head portion, a reduced, tapered neck portion and a tapered, disposable elastomeric cup that snugly fits over the neck. The taper permits the inventive compound bung to be universal in fit and the elastomeric material of the cup grippingly conforms to bunghole irregularities. The body can be re-used with multiple cups, each being dedicated to a different wine or spirit, or after the cup has worn out. Body materials are selected from any essentially low- or non-resilient material, including glass, hard plastic (such as polycarbonate), wood, metal or ceramic, and may be colored. The head may be domed or flat, and may be decorated, as by etching, embossing or painting with the winemakers or winery mark. The inventive compound bungs/bodies that are identified by such marks may be sold as collectibles or as commemorative devices.

Abstract: The invention relates to a device for stopping a container (1) having a neck (12). The device includes a stopper (51) and a plastic cap (52) configured to surround both the stopper (51) and the neck (12). The cap (52) includes a ring (53) that can surround the stopper and the neck when mounted and is provided with a locking tab (537) for locking onto the neck, and a body (54) for handling the ring, provided with an external rib (535) for transmitting a thrust force to the ring and an edge (541) for activating the tab for locking the ring. The ring (53) is provided with a continuous outer peripheral collar (5311), and the handling body (54) is provided with at least one raised element (5431) designed to abut (E4) against the continuous outer peripheral collar (5311) when the edge (541) activates the locking tab (537).

Abstract: A bottle sealing system for resealing an opened beverage bottle features a conical sealing member. The conical sealing member features a lower ridge and an upper ridge located around the sealing member side wall outside surface. The conical sealing member features an upper groove located around the sealing member side wall inside surface. The upper groove is located opposed to the upper ridge. The upper groove is adapted to receive a beverage bottle ridge located around a beverage bottle neck. The system features a compression cap resembling a football helmet. A compression cap groove is located around the compression cap side wall inside surface. The conical sealing member is adapted to slide over an open bottle. The compression cap is adapted to slide over the conical sealing member. The compression cap groove is adapted to snap over the upper ridge of the conical sealing member.

Abstract: A stopper head (1) to be secured to a stopper body (2) to form a stopper for a container, includes a base (3) on which a lug (4) is positioned such that it protrudes, the lug (4) being designed to cooperate with the body during the assembly of the body and the lug (4), the lug (4) including at least one recess (5) opening laterally, at both of its ends, such that the lug (4) is crossed through to anchor the body with the head (1).

Abstract: A composite synthetic cork is provided, wherein the synthetic cork is operatively coupled with a cap via an interlocking contour. In an exemplary embodiment, the interlocking contour(s) is molded on an otherwise flat bottom portion of the cap. In other exemplary embodiments, the cap and the cork are assembled via co-injection molding.

Abstract: A closure for a container is disclosed. The closure comprises a core member comprising at least one thermoplastic polymer, and at least one peripheral layer at least partially surrounding and intimately bonded to at least one surface of the core member, said peripheral layer comprising at least one styrene block co-polymer, wherein the core member has a density in the range of from about 100 kg/m3 to 350 kg/m3 and the peripheral layer has a density in the range of from greater than 350 kg/m3 to about 1,500 kg/m3 and a thickness in the range of from 0.15 mm to less than 0.50 mm.

Abstract: A container, particularly a beverage bottle, can be closed in a bottle opening of a bottle body with a closure made of a plastic material or glass. A fixing element is detachable fastened to the bottle body and holds the closure in the bottle opening. Such a bottle closure solves the problems involving, in particular, wine bottles and which arise when otherwise common bottle cork stoppers are used.

Abstract: Stoppers made from composite material for sparkling wines consisting of two types of cork agglomerate which are closely bonded and produced from two ranges of granulates of different granulometry, where the joining surface between the two agglomerates is irregular due to their interpenetration. A production process of such stoppers by individual molding (piece by piece), where there is simultaneous feeding of two types of granulate and respective additives into a mold. The mold is then closed and the material compressed and heated for an appropriate time for polymerization. The granulates used are normally treated with a reactive agglomerant consisting of, for example, quasi-prepolymer based on TDI or quasi-prepolymer based on MDI base. After de-molding, the unfinished stopper is stabilized, and later machined to the final dimensions.

Abstract: Systems, methods, and means for providing a novelty item are provided. In some embodiments, a stopper comprises a body, having an inner chamber and a top portion, a novelty item disposed within the inner chamber, and a disk placed on an outer surface of the body removably holding the novelty item within the inner chamber.

Abstract: A stopper for a container neck having a skirt centered on an axis, and an internal snapping device. The snapping device fastens the stopper to the neck by engaging with an edge of the neck and an external disengagement tab projecting outwards from the skirt and running over a peripheral portion of the skirt. The skirt includes an external collar projecting outwards and running over a peripheral portion of the skirt distinct from the portion associated with the tab, by being separated from the portion associated with the tab at either end around the periphery of the skirt. At least a portion of the collar that runs through greater than 180° about the axis includes, in cross-section relative to the axis, a circular outside profile centered on the axis and having a radius substantially equal to the maximum radial distance between the axis and the outside profile of the tab.

Abstract: A stopper which engages a neck of a container. The stopper includes a circular bottom section and a head section which rises above the container and encompasses a slide. The rim of the head section has a maximum diameter that does not exceed the external diameter of the opening of the container. The slide can be pushed against the force of a spring device in one direction and, when released, returns to its retracted initial position as a result of the spring force. Opposing sides of the slide each end in circumferential sections. A first one of the circumferential sections forming an outer surface for receiving a first applied force for advancing the slide and causing the second one of the circumferential sections to protrude from the stopper. The second one of the circumferential sections receiving a second different applied force to remove the stopper from the container.