Abstract: A cap comprises a cap body including a top plate portion and a skirt portion integrally provided with the top plate portion through a corner portion and screwed to a mouth portion of a can container, and a disk-shaped sealing member including a sliding layer which is provided separately from the cap body to face the top plate portion, includes a protrusion portion formed on an outer peripheral side of a portion opposed to the mouth portion when the cap body is screwed with the can container and gradually decreasing in thickness toward an outer peripheral edge, and slides on the top plate portion and a sealing layer which is integrally provided with the sliding layer and seals the mouth portion.

Abstract: A bubble manufacturing container of the present invention includes: a container body having an opening portion; and a rubber stopper provided on the opening portion of the container body. The rubber stopper is constituted so that the bubbles 1 of an inside of the container body are able to be taken by piercing an injection needle. It is preferred that the bubble manufacturing container has a fastening portion provided on the rubber stopper, having an opening and sealing the container body with the rubber stopper. Furthermore, it is preferred that the container body mounts a weight portion.

Abstract: A window covering includes a housing, a covering material, a spindle, and a driving device. The spindle and the driving device are provided at the housing. The driving device includes a motor having a shaft, and an epicyclic gearing decelerating device having an input end and an output end connected to the shaft and the spindle, respectively. Whereby, the spindle can drive the covering material to expand or to collapse. The epicyclic gearing decelerating device includes a ring portion and at least a planet gear assembly which is coupled between the input end and the output end. The planet gear assembly includes a plurality of planet gears having a Shore A durometer hardness of 45-90, which is rotatable along the fixedly provided ring portion. While being driven to move, a lower end of the covering material moves at a speed higher than 65 mm per second.

Abstract: A lid for an insulated container comprises a flexible gasket configured to facilitate a seal between the lid and an inner wall of the insulated container, and further configured to expand into an interior compartment of the insulated container responsive to a vacuum developing in the interior compartment. A diaphragm chamber is situated opposite the flexible gasket from the interior compartment when the lid is fully engaged with the insulated container. One or more air channels couple the diaphragm chamber to an exterior of the lid. The development of a vacuum in the interior compartment of the insulated container draws a force on the flexible gasket, thereby reducing pressure in the diaphragm chamber. The negative pressure in diaphragm chamber is back-filled with external air, which enters the lid via the air channels. The lid may then be removed without excessive vacuum forces.

Abstract: A cap assembly includes a base cap, a chemical resistant sheet, and a closure assembly. The closure assembly is configured for carrying the chemical resistant sheet. The closure assembly is mounted in the base cap. The base cap and the closure assembly together define a central cap assembly aperture therethrough.

Abstract: A filter baffle assembly, including a filter cap engageable to a mouth of a container, the filter cap including a filter vent operatively attached to a liner situated within an inner space of the filter cap, and a gas permeable baffle disposed between a mouth of the container and the filter vent, covering the filter vent, the baffle including a single perforation to permit gas exchange between an interior of the container and the filter vent, and to protect the filter vent from contact with contents housed in the interior of the container. A gas permeable point baffle for protecting a filter vent from contact with the contents of a container, including a single perforation, the point baffle being welded to a liner and covering a filter vent operatively attached to the liner, housed within a cap engageable to the mouth of the container. A method for protecting a filter vent from the contents of a container.

Abstract: A connector structure of an ink pouch includes a connector body including a joining section, a sealing section, and an ink passage extending through the joining section and the sealing section, the sealing section having a hollow fitting peg, insertion slots, and an annular retaining groove in communication with the insertion slots; a sealing cap including a pressing section and a fitting trough corresponding in position to the pressing section and engaging and retaining sections, each of which has an insertion arm and an engaging block protruding from the insertion arm; and a flexible plug. To combine, the flexible plug is positioned in the fitting trough and the insertion arms of the engaging and retaining sections are inserted into the insertion slots to have the engaging blocks protrude into the annular retaining groove. The fitting peg is received in the fitting trough and the flexible plug closes the ink passage.

Abstract: An open top closure for use in conjunction with a liner. The closure has sidewalls and the upper portion of the closure is open, with at least one rib positioned a spaced distance above the plane of the liner. When in place on a container, the rib serves to limit the travel of the liner upward as it expands after the hot-fill of a product. The open upper portion of the closure permits any accumulated moisture to be blown off after the hot-fill is cooled.

Abstract: A metallic container closure including a shell of a thin metal sheet having a circular top panel wall (7) and a skirt wall (9), and a synthetic resin liner arranged in the shell, the skirt wall (9) having a thread-forming region and an annular groove (17) positioned at an upper end portion of the thread-forming region, wherein an internal pressure release line A extending in the circumferential direction is arranged in the skirt wall (9) at a portion over the annular groove (17), and annular bead (30) is arranged so as to pass through between the internal pressure release line A and the annular groove (17).

Abstract: A vessel cap is comprised of a body mounted at a vessel inlet through which a liquid material stored in a vessel is discharged outwardly and having a certain space therein. A pressing plate is disposed in the body to be movable in upper and lower directions. A cutter is formed at an edge of a lower surface of the pressing plate in a circumferential direction for penetrating a sealing member when the pressing plate is pressed and which cuts the sealing member when the body is rotated. A hooking member downwardly protrudes at the lower surface of the pressing plate for storing the sealing member cut by the cutter in the body. A connection portion is formed between an outer circumferential surface of the pressing plate and an inner circumferential surface of the body for guiding the pressing plate to be moved in upper and lower directions.

Abstract: A plastic closure includes a shell having a base wall with a skirt for securement to a container finish and a lip that extends radially inwardly from the skirt at a position adjacent to and spaced from the base wall. A liner is compression molded in situ against the base wall, and between the base wall and the lip. The lip has a plurality of circumferentially spaced passages that extend through the lip for venting air during compression molding of the liner.

Abstract: A sealing mechanism for a container opening having a cylindrical opening disposed on a container body and a cap for sealing the cylindrical opening. The cap includes a screw-on cap body and an upper lid for sealing the cylindrical opening. The cap body and the upper lid are independent of each other so that the cap body can be rotated without rotating the upper lid and are engaged by a concave/convex portion. When the cap body is moved away from the container, the cap body slidably abuts on the upper lid, and pushes up the upper lid to open the cylindrical opening, and when the cap body moves toward the container, the cap abuts on the upper lid and pulls down the upper lid to re-seal the cylindrical opening.

Abstract: A closure including a shell having a base wall with an axial outer surface and an undersurface, an annular skirt around a periphery of the base wall, and circumferentially spaced securement elements extending radially inwardly from the skirt. A gasket is carried by the shell, and has a base surface in contact with the undersurface of the base wall of the shell and an oppositely disposed sealing surface. An elongated flexible member extends between the sealing surface of the gasket and the axial outer surface of the shell and around a portion of the skirt circumferentially between the securement elements.

Abstract: Retortable packages including plastic closure caps are disclosed. The closure cap includes an end panel and a liner applied to the end panel. The finish contacting surface of the liner has a profile that is generally arc-shaped or torroidal-like prior to contact with the finish.

Abstract: A food container is disclosed that is adapted for facilitating venting of gasses to and/or from the interior of a body of the food container. The food container includes a container body, a lid and a sealing membrane. At least one skip seal or gap is formed between the sealing membrane and the container body to facilitate venting. During formation of the at least one skip seal a recess in either the lid or rim of the container reduces pressure at the skip seal to reduce or eliminate inadvertent closing of the skip seal.

Abstract: Heat-sealable seal including a support bonded to an inner seal by a temporary adhesive is provided. The inner seal has a pull-tab which is folded back once on the surface of the inner seal in contact with the corresponding surface of the support. The inner seal includes a laminate having a reinforcing layer and a sheet of a conducting material, to the lower surface of which is applied a heat-sealing film. The temporary adhesive is applied to the whole surface of the inner seal once the pull-tab is folded back. The seal is characterized in that the laminate has over its entire thickness a notch from which the pull-tab emerges, and a fold line formed by the pull-tab once the pull-tab is folded back, the fold line having a shorter length than the length of the notch. Methods of producing the seal are also disclosed.

Abstract: A preservation container cover includes a flexible film to contact with the rim of the container, an upper sealing ring, and a lower sealing ring affixing a periphery portion of the flexible film. The upper sealing ring has a ring slot extending along the periphery portion of the flexible film. The lower sealing ring comprises a ring plug along the periphery portion of the flexible film. The ring slot and the ring plug form a clamp structure to affix the flexible film. The present invention is convenient to use, adaptable to various containers of different types and sizes, and won't cause waste of natural resources and environment problems.

Abstract: The present invention concerns a container comprising a container body with bottom and side walls and a container opening, and a container closure (1), said body and closure comprising corresponding screw threads (3) to allow releasable attachment of the closure onto the body in order to open/close the container opening, characterized in that the container body comprises at least one cam-like means (4) located on the external surface of the container body walls, and the closure comprises at least one engagement means (5) corresponding to the cam-like means of the container body, said engagement means being located at the internal surface of the closure walls, so positioned that during the screwing operation of said closure onto said container body, said cam-like and engagement means cooperate in a audible manner at the time said closure is sufficiently engaged onto the body to ensure gas and/or liquid tightness of the closed container.

Abstract: A closure for a sealed container of a pourable food product includes a pouring spout which has at least a layer of gas- and/or light-barrier material and a pour opening closed by a cover portion on the side opposite to the side facing, in use, the container, and a cap fittable to, and removable from, the pouring spout; the cover portion has a through cut at its periphery and is joined to a top wall of the cap superimposed on the cover portion, so that the cover portion defines a layer of gas- and/or light-barrier material of the cap and can be removed together with the cap from the pouring spout during first unsealing of the closure; a sealant is provided on a given area of the top wall of the cap for cooperating with a region of the pouring spout.

Abstract: A closing arrangement includes a neck having an end closed by a wall and an associated cap. The end of the neck is provided with a weakening line that surrounds the neck. The cap is provided with an opening promoting device arranged for engaging with a further opening promoting device of the wall to separate at least a part of the wall of the neck along the weakening line.

Abstract: The present invention is directed to a method and apparatus for accommodating the pressure decrease of the fluid in a hot-filled plastic container.

Abstract: A closure having a device for lifting a liner from a container opening. The lifting device being a finger projecting from a hinge connection within the closure. The hinge connection is positioned from a depending skirt of the closure. The hinged finger disengages the liner from a sealing engagement with the container while engaging along substantially the same annulus spaced from the liner edge. A plurality of the hinged fingers may be used for the lifting device. The closure may be used in various retort and aseptic applications, as well as provide for tamper indication.

Abstract: Improved packages, methods for manufacturing the packages and methods for producing beverages using the packages are provided. The packages (10) include a cap (60), a container (20), and an adapter (30) positioned between and connected to the cap and container. The adapter (30) is configured to penetrate seals (28, 66) on the cap and the container by means of a spike member (50) to allow contents (p) of the cap (60) to mix with contents (d) of the container (20).

Abstract: Heat-sealable seal including a support bonded to an inner seal by a temporary adhesive is provided. The inner seal has a pull-tab which is folded back once on the surface of the inner seal in contact with the corresponding surface of the support. The inner seal includes a laminate having a reinforcing layer and a sheet of a conducting material, to the lower surface of which is applied a heat-sealing film. The temporary adhesive is applied to the whole surface of the inner seal once the pull-tab is folded back. The seal is characterized in that the laminate has over its entire thickness a notch from which the pull-tab emerges, and a fold line formed by the pull-tab once the pull-tab is folded back, the fold line having a shorter length than the length of the notch. Methods of producing the seal are also disclosed.

Abstract: Metal closure components and methods for making the same are provided. The closures may be formed from a metal sheet having a pre-formed polymer film adhered on at least one face. A circular blank may be cut from the sheet, such that the blank may have a circular “raw” cut edge unprotected by the polymer film. The metal blank may then be formed such that the cut edged may be embedded into the film.

Abstract: A metallic container closure comprising a shell of a thin metal sheet having a circular top panel wall 7 and a skirt wall 9, and a synthetic resin liner arranged in the shell, the skirt wall 9 having a thread-forming region and an annular groove 17 positioned at an upper end portion of the thread-forming region, wherein an internal pressure release line A extending in the circumferential direction is arranged in the skirt wall 9 at a portion over the annular groove 17, and annular bead 30 is arranged so as to pass through between the internal pressure release line A and the annular groove 17. The metallic container closure effectively releases the gas when the pressure in the container is elevated and effectively prevents the skirt wall from being deformed at a portion where the internal pressure release line A is formed when it is being wrap-seamed with the mouth-and-neck portion of the container.

Abstract: The present invention is a non-removable closure. A non-removable closure in accordance with the present invention may comprise (a) a first sealant layer; (b) a sealant interface layer; and (c) a second sealant layer. A non-refillable container for flowable materials in accordance with the present invention may comprise: (a) a cap; (b) a first sealant layer; (c) a sealant interface layer; (d) a second sealant layer; and (e) a flowable material receptacle. A method for manufacturing a non-removable bottle closure in accordance with the present invention may comprise the steps: (a) disposing a first sealant layer on a first surface of a sealant interface layer; (b) disposing a second sealant layer on a second surface of the sealant interface layer; (c) adhering the first sealant layer to a cap; and (d) adhering the second sealant layer to a receptacle mouth.

Abstract: A peelable seal having one or more layers for sealing containers by heat sealing may include a stiffening structure, a foil portion, and a sealant structure. The stiffening structure of the seal includes an outer periphery or overhanging portion which extends beyond the rim of a neck of a container thereby allowing the peelable seal to be loosened from the container by flicking the overhanging portion of the peelable seal with a portion of the hand and without the need to pinch the seal.

Abstract: The screw capsule includes two parts, a) an insert with a so-called internal head and an internally-threaded skirt a metallic shell, including an external head and an external skirt, the capsule being typically provided with a sealing element, a tamper-protection element and a member for first opening, characterised in that the external skirt includes at least one piece, typically cylindrical, of height, diameter corresponding to the neck for sealing and at least one radially-expanded section, of height, within a circle of diameter D2>D1, such as to form an annular radial cavity. The above offers the advantage that the expanded section particularly facilitates the manipulation of the capsule (1) and the rotation thereof with relation to the neck for opening/closing the container by unscrewing/screwing up the capsule on the neck.

Abstract: A closure, embodied to cooperate with a neck of a container, the neck, having a wide mouth on the upper part thereof, an external thread and a tapering piece on the lateral wall, for sealing the closure which includes a) an external body having an external head and skirt, b) an insert, enclosed within the body and fixed thereto, including an internal head and skirt, provided with an internal thread, for cooperation with the external thread of the neck and c) a sealing joint, forming an inset piece, fixed to the insert. The joint has a central piece and a border piece. The insert includes a radial compression element, for the sealing joint against the neck, such that when the bottle closure is screwed to the neck, the border is compressed radially between the insert and the neck.

Abstract: A seal member for a dispensing cartridge includes a flat circular seal disk, a frustoconical wall extending outwardly away from the seal disk, and a ring at an open end of the frustoconical wall. The seal member is assembled with a cap having an end wall and a cylindrical skirt wall. The skirt wall has an internal diameter and the ring has a slightly smaller outer diameter. The ring abuts the end wall. A central opening extends through the end wall with a diameter no larger than a ring inner diameter. The dispensing cartridge has a cylindrical mouth wall with inner and outer diameters. The skirt wall has an internal diameter sized to receive the mouth wall outer diameter and the diameter of the seal disk is larger than the mouth wall inner diameter. The ring outer diameter is at least equal to the mouth wall outer diameter.

Abstract: A tamper evident container closure seal with an integral pull opener is constructed from one or more layers of frangible sheet material adhesively bonded to one or more layers of strengthening sheet material. The one or more strengthening layers each contain one or more duplicate void configurations that form a weak area in the multi layered seal only in the area of the void configuration. When a consumer forces a finger into the seal when bonded to the rim of a container the applied pressure forces the seal to break open and tear only in the weaker area of the void configuration while the peripheral portion of the seal remains bonded to the container rim. The broken open center portion of the seal then forms a pull tab that can be partially connected which allows the pull tab to be lifted back out and pulled from the container.

Abstract: A urine sample is taken by providing to the person a container having a removable cap with an initially unbroken elastomeric septum puncturable by a blunt tipped pipette and self-resealing following withdrawal of the pipette from the septum. The urine specimen is deposited in the container and the cap replaced. The container with the specimen is conveyed to a laboratory location for analysis where the septum is punctured by manually pressing the blunt tip of a plastic pipette against the septum with sufficient force to puncture through the septum and into the container with the tip. A sample of the urine specimen is drawn into the pipette and the pipette tip withdrawn to allow the septum to self-reseal, such that the urine specimen is sampled for analysis without reopening the container cap following replacement of the cap at the specimen collection site.

Abstract: There is provided a gasket element having at least one first inner layer and at least one first outer layer. Each of the at least two layers have differing material properties. The gasket element is well suited to cooperate with an ingress/egress opening of a container that in turn is well suited to retain an active pressure and/or temperature sensitive substance. The gasket element may be operatively connected to a cap element that is suitable to selectively close the at least one ingress/egress opening of the container. The cap element may be a stand alone sealing cap or may be operatively associated with a spray nozzle or the like.

Abstract: A self peelable seal having one or more layers for sealing containers by heat induction, conduction, or other means and having a stiffening structure. A portion of the seal is axially retained within a closure thereby allowing the peelable seal to be loosened from the container neck by placing a lifting force on the seal with the closure upon removal of the closure from the container.

Abstract: Disclosed are self-authenticating seals for containers in which the seals include a non-visible taggant correlated to a pre-determined indicia. Containers sealed with the sealing members as well as methods of authenticating containers that have been sealed with the sealing members are disclosed.

Abstract: A closure for maintaining pressure against a seal affixed to a container lip during a thermal sterilization process includes a top wall and an annular skirt depending from said top wall, at least one retaining structure extending from the annular skirt, a reseal structure rotatably disposed above said retaining structure and adjacent said top wall, an inner seal rotatably disposed above the retaining structure and beneath a lower surface of said reseal structure, wherein said inner seal and said reseal structure are both rotatable relative to said closure.

Abstract: A safety closure for use on a container neck having a closure top wall, an annular sidewall depending downwardly from an outer periphery of the top wall defining an open bottom opposite the top wall. The sidewall has inner annular surface with a plurality of lugs projecting inward therefrom, wherein each lug has a lug top surface forming an angle of incidence of greater than 90° with the inner annular surface of the annular sidewall. The plurality of lugs are engageable with a plurality of lug receiving notches in a plurality of bayonet lugs on a container neck. A spring member depends from the closure top wall and is resiliently engageable with the container neck to bias the safety closure away from the container neck. Optional closure retaining means may be incorporated within the closure, container, or both.

Abstract: Provided is a liner-provided cap for sealing the mouthpiece of a threaded container, which includes the cap shell 4 consisting of the top plate 2 and the tubular peripheral wall section 3 that hangs from the peripheral edge of the top plate 2, and the synthetic resin liner 5 provided on the inner surface of the top plate 2. The liner 5 includes the disk-shaped rigid sheet 5a disposed in contact with the inner surface of the top plate 2, and the soft layer 5b that is laminated to the rigid sheet 5a and is more flexible than the rigid sheet 5a. The soft layer 5b is concentric with the rigid sheet 5a and is formed in an annular or disk shape with a diameter smaller than that of the rigid sheet 5a so that the soft layer 5b can be brought into contact with at least the mouthpiece.

Abstract: This invention refers to a glued or heat-sealed cap for resealing test tubes for clinical analyses which can be easily perforated and permits the application of a second cap.

Abstract: An improved two-piece container seal suitable for sealing a container having a removable closure and for lining the closure comprises a flexible sealant sheet and a flexible liner sheet bonded thereto. The sealant sheet and liner sheet are of the same size and shape. The sealant sheet has a sealing surface and a first thermoplastic surface, and the liner sheet has an outer surface and a second thermoplastic surface. The first and second thermoplastic surfaces are in opposed, congruent contact with each other, and the first thermoplastic surface is ultrasonically welded to the second thermoplastic surface by an array of spaced, frangible ultrasonic welds, forming an adhesive-free interface therebetween. A method of manufacturing a two-piece container seal and a sealed container comprising a two-piece container seal are also described.

Abstract: Retort liners and containers including a container body such as a bottle or jar, a closure, and the retort liner, wherein the retort liners exhibit attractive properties such as low compression set under retort conditions, desirable adhesion to a polymeric closure such as a cap or lid, and beneficial oxygen barrier properties. In particular, the retort liners are thermoplastic elastomers formed from compositions including one or more styrenic block copolymers, one or more polyolefins and a softener. In a preferred embodiment, the retortable containers are all plastic packages, wherein the bottle or jar and the closure are thermoplastic compositions and the liner is a thermoplastic elastomer composition.

Abstract: A one-piece closure for sealing a container having a neck portion includes a top wall (2) connected with a substantially cylindrical side wall (3) and an annular seal (24) that extends downwardly from an inner surface of the closure. The side wall (3) has a substantially contact wall thickness and the annular seal (24) is deformable, in use, on application of the closure to the neck portion of a container such that it at least in part abuts the side wall (3). A tamper evident ring (40) separates from the closure at substantially the same time the annular seal (24) disengages from the neck portion (5).

Abstract: A plastic closure includes a plastic closure shell having a base wall with a central opening, a skirt for securing the closure to a container neck finish, and an internal ledge on the skirt adjacent to but spaced from the base wall. A plastic disk is retained within the closure shell. The disk includes a plurality of axially extending spacer elements, preferably in the form of angularly spaced circumferentially aligned bead segments around a peripheral portion of the disk, to engage an underside of the base wall and space the disk from the base wall of the shell. Angular gaps between the spacer elements permit flow of fluid from the central opening, between the base wall and the disk and through the gaps. A periphery of the disk is disposed between the internal ledge on the skirt and the base wall of the shell to capture the disk such that the disk is free to rotate within the shell. A resilient sealing liner is molded onto an underside of the disk for sealing engagement with the container neck finish.

Abstract: A beverage container closure includes a cap and a monolithic cap liner having concentric first and second seal rings coupled to the cap. The concentric first and second seal rings are adapted to mate with an annular rim provided on the neck of a beverage container and formed to include an open mouth to allow liquids to flow through the neck into and out of the beverage container. At least one of the seal rings is splayed relative to the annular rim during installation of the cap on the container neck to form a seal between the cap and the beverage container.

Abstract: In a wide-mouth plastic container including a container body 2 provided with a mouth portion 3, a body portion 4 and a bottom portion 5 and a lid 6 fitted to the mouth portion 3, the body portion 4 is provided with an internal pressure variation-absorbing panel 4a and the mouth portion 3 is heat-sealed with a film material 7 to seal the opening of the container body 2, thereby securing high sealing property and heat resistance in high-temperature sterilization and improving the internal pressure variation absorbing performance of the container.

Abstract: A closure for a container for sealing the contents of the container includes a cap assembly having a first portion that is insertable into a dispensing opening formed in the container and a second portion that is rotatable relative to the first portion. The cap is positionable between at least a dispensing position in which the contents of the container can be dispensed through the cap assembly and a closed position in which the contents are sealed in the container from atmospheric conditions. The closure also includes a rollable, flexible liner for receiving and holding the contents, the liner being coupled to the cap assembly and in fluid communication therewith so that the liner can initially receive the contents and later dispense the contents through the cap assembly.

Abstract: There is provided a gasket element having at least one first inner layer and at least one first outer layer. Each of the at least two layers have differing material properties. The gasket element is well suited to cooperate with an ingress/egress opening of a container that in turn is well suited to retain an active pressure and/or temperature sensitive substance. The gasket element may be operatively connected to a cap element that is suitable to selectively close the at least one ingress/egress opening of the container. The cap element may be a stand alone sealing cap or may be operatively associated with a spray nozzle or the like.

Abstract: A bottle cap is provided that allows for venting of gases generated in a bottle. A single or multiple ridges are formed on the inner surface of the cap top such that the ridges sit on the bottle mouth rim when the cap is threaded onto the bottle. A single or multiple slots may be formed across each of the ridges. Alternatively, a single or multiple grooves may be formed on the inner surface of the cap top. The ridge(s) or groove(s) may also be formed on a disc fitted over the inner surface of the cap top. When the cap is threaded on to the bottle, gases generated in the bottle can escape through the slot(s) formed across the ridge(s) or through the groove (s) formed on the inner surface of the cap top. A liner having an opening formed through its thickness may be placed in the cap. The liner opening allows the passage of gases from the bottle to the slot(s) or groove(s) formed on the cap top or disc.

Abstract: A bottle cap is provided that allows for venting of gases generated in a bottle. A single or multiple ridges are formed on the inner surface of the cap top such that the ridges sit on the bottle mouth rim when the cap is threaded onto the bottle. A single or multiple slots may be formed across each of the ridges. Alternatively, a single or multiple grooves may be formed on the inner surface of the cap top. The ridge(s) or groove(s) may also be formed on a disc fitted over the inner surface of the cap top. When the cap is threaded on to the bottle, gases generated in the bottle can escape through the slot(s) formed across the ridge(s) or through the groove (s) formed on the inner surface of the cap top. A liner having an opening formed through its thickness may be placed in the cap. The liner opening allows the passage of gases from the bottle to the slot(s) or groove(s) formed on the cap top or disc.