Abstract: A closure-assembly includes a molded plastic closure cap, and a disc-shaped insert liner positionable adjacent a top wall portion of the closure cap. An annular shoulder of the closure cap cooperates with the insert liner to form a top/side seal with an associated container. The annular shoulder includes at least one annular liner-engaging rib, which cooperates with the insert liner to enhance sealing performance of the closure assembly, retain the liner in position with the closure cap, and facilitate high-speed closure formation.

Abstract: A sanitary sampling system for attachment to a tube portion of a fluid containing enclosure. The sanitary sampling system is comprised of a rigid stem portion for attachment to the tube portion of the fluid enclosure, a stopper portion having a lower portion for insertion into the rigid stem portion and tube portion, a disk-shaped orifice plate fitting for placement on the upper surface of the stopper portion and an adjustable clamp for adjustment around the stem portion, orifice plate fitting and stopper portions of the sanitary sampling system. The sanitary sampling system is designed to enable the stem portion, stopper portion and orifice plate fitting to interlock to form an air-tight and leak-free seal when the adjustable clamp is tightened.

Abstract: A screw cap comprises an internal screw thread and a braking element for engaging the lead end of the external screw thread on a container for which the cap is intended. When the cap is applied to the container, the braking element progressively retards the screwing movement.

Abstract: A bottle assembly for storing and retailing a liquid substance such as fabric bleach that generates gases when it is heated or contaminated. The bottle of the assembly has a neck on which a closure cap may be screwed. The neck is closed by a peelable seal made of porous plastic foam such as polystyrene, which is fixed by a pressure adhesive across the neck and sized so as to be easily graspable and peelable with two fingers with a reduced risk of contact with the substance within the bottle. Another seal made of the same porous foam is freely mounted within the cap to allow the bottle to be sealed again in a permanent manner after the peelable seal has been removed. Both seals prevents the bottle from bulging and from leaking if it is inadvertantly knocked over.

Abstract: An oxygen scavenger comprises an oxygen absorbent composition and an oxygen permeable film covering the oxygen absorbent composition and including an asymmetric porous membrane whose outer surface portion in the thickness direction of the asymmetric porous membrane is formed as a dense skin layer. Since the dense skin layer is very thin, the oxygen permeability to the oxygen absorbent composition through the oxygen permeable film can be maintained sufficiently high. At the same time, since the dense skin layer has a sufficiently high barrier property as well as a high oxygen permeability, contact of the substances stored in a container with the oxygen absorbent composition can be surely prevented. The substances stored in the container attached with the oxygen scavenger can be prevented from deterioration due to the oxygen present in the container by a high oxygen absorption ability of the scavenger, and maintained in a good or fresh condition for a long term.

Abstract: A dispensing fitment is temporarily retained in a conventional screw cap for application to a container as an assembly by axial ribs extending radially outward from the cylindrical sidewall of the fitment to engage the cap threads, and by thin planar fins extending radially outward from the base of each rib parallel to the end wall of the fitment and into the cap thread. An internal bead on the fitment snaps over an external groove in the container neck to secure the fitment to the container so that the fitment remains affixed to the container when the cap is removed for dispensing product from the container through a dispensing opening in the fitment end wall.

Abstract: A closure is provided with channels through which wash water can be injected to wash out food particles between the threads of a container after the closure has been applied and sealed. In a composite closure embodiment, a lid or insert disk is received in an annular shell beneath an overhanging top lip of the shell. Water wash channels are provided on the undersurface of the top lip, and extend from the inner edge of the lip outwardly past the edge of the disk. One or more stops on the underside of the top lip prevent the channels from being closed, as by over-tightening. The wash channels extend outwardly past the stop, and communicate with a spiral channel in the threaded region of the shell, which in turn communicates with an outlet. A water jet directed onto the lid of the closure flows through the wash channels outwardly over the edge of the lid and downwardly into the threaded region, to an outlet.

Abstract: A composite closure with a side seal proportioning lip is disclosed, with the closure including an outer plastic closure cap, and a plastic sealing liner positioned adjacent a top wall portion of the cap. The sealing liner includes a central disc-shaped portion, and an integral relatively thick, annular sealing bead portion. The closure is thus configured to effect a "top/side seal" with an associated container. The construction includes an annular liner-retaining lip having a relatively flexible annular inner edge portion which coacts with the sealing bead portion of the liner to self-adjust and proportion the degree of sealing engagement between the sealing bead portion of the liner and the associated container.

Abstract: A closure having an axially movable insert disk which is lifted by a bead around the inside of the closure shell to open a sealed container. When the closure is in sealing position on the container, the lifting bead lies below the top of external threading on the container, and at the top of cooperating internal threading of the closure skirt. The bead has an inside diameter greater than that of the closure threading, and can move upwardly past the external threading on the container. The overall heights of the closure and the container finish can thereby be reduced and less material used.

Abstract: A plastic closure comprising a base wall, a peripheral skirt, means on said skirt adapted to attach the closure to a container, and a sealing liner compression molded in situ on the interior of the base wall of the closure, said sealing liner comprising a blend of an ethylene vinyl acetate composition and a thermoplastic elastomeric composition.

Abstract: A sealing member for a container has a membrane, e.g. aluminum foil, and a first sheet, e.g. polyester, part of which is bonded to the membrane. The other part of the sheet is free, so as to form a tab, to enable the seal to be detached. The seal can be attached to the neck of a bottle by a hot melt adhesive. The sheet and membrane can be stamped from a compound sheet and be of the same size.

Abstract: A commercially available seal disc of foil or thin plastic is inserted in a temper-evident plastic bottle cap prior to its being applied to a container neck. The cap has an internal, horizontal upper locking bead as well as a lower locking bead which lock under shoulders on the neck of the container. Inward-extending lugs are formed projecting inward of the upper locking beads to augment the bead sections in retaining the seal disc inside the cap. When the cap is applied to the container neck, the seal disc adheres to the container neck. Neither the internal cap beads nor the lugs interfere with retention of the disc on the neck as the cap is removed.

Abstract: A container closure includes a cap having depending interior tines in engagement with a tamper-indicating element and thereby moving the element into registry with a container access port. Load-sharing structure is incorporated in the cap to provide additive force for movement of the tamper-indicating element, such force being imposed on the element at a location spaced from the location of engagement of the tines and the element. The load-sharing structure may also provide for sealably reclosing the container upon opening of the closure and removal of the tamper-indicating element.

Abstract: A container closure includes a closure member defining container closing expanse, a tamper-indicating element in the closure interiorly of the closure member and tines movable with the closure member for both retaining the tamper-indicating element with the closure and for selectively tearing the tamper-indicating element. The movable tines are inaccessible through the closing expanse of the closure member and the closure affords visibility therethrough of the condition of the tamper-indicating element.The tamper indicating element includes a compressible foam layer and the movable tines reside essentially in the foam layer.

Abstract: A container closure providing tamper indication includes tines therein in engagement with a tamper-indicating assembly which is nested in the closure and retained therein by the tines up to the point of telltale activation on container opening. The closure includes a member adapted to engage the tamper-indicating assembly subsequent to telltale activation both to remove the assembly from secured relation to a container and to retain the assembly with the closure in the course of its removal from the container and reapplication thereto.

Abstract: A tamper-indicating capped container includes an indicating member sealed across the container access port and the container cap is transparent and has capability for effecting visible change in the indicating member selectively in the course of container-opening sense movement of the cap. Tines may depend in cantilever manner from the cap interior to provide for tearing of the indicating member and the indicating member may be paper sheet material or a color change telltale.

Abstract: Stopper device comprising a screw cap (1) made of oxygen-permeable, injection-moulded thermoplastic, whose bottom (2) is covered internally with an oxygen-impervious composite sheet (5) comprising a layer of paper (6) and a layer (8) of PVC and adhering to the bottom by virtue of the fact of the injection of the cap (1) onto the sheet (5), on the paper side, a plastisol seal (9) being cast on the sheet (5), on the PVC side, so as to adhere thereto after gelling.

Abstract: An improved composite closure is described which has a cover portion which is at least partially plastic and a molded plastic ring portion. The molded ring also permits the cover to be inserted from the top of the ring rather than just upwardly over the ring threads and permits a plastic to plastic engagement or attachment of cover and ring.

Abstract: A closure and method of assembly for sample vials comprising a cap and a septum with the septum having a plurality of radially extending protrusions for retentive engagement with the cap to retain the septum and annular disk within the cap during positioning of the closure on the sample vial.

Abstract: A closure for a container which includes a cap comprising an end panel wall, and a cylindrical skirt wall extending from the peripheral edge of the end panel wall. A container opening sealing member is located inside the cap on the inside of the cylindrical skirt wall and adjacent the end panel wall, the sealing member having been formed inside the cylindrical skirt wall against the end panel wall.

Abstract: A tamper indicating package incorporates a closure, at least a portion of which is transparent, and a seal which is bonded to the container so that the seal is visible through the closure. In some embodiments the closure is fastened also to the seal so that any movement between the closure and container results in fracture of the seal indicating tampering.

Abstract: To resist tampering with the contents of containers, a plastic cap is provided with a foil liner. When the cap is seated on the container neck, the foil is caused to be sealed across the neck. To inhibit the foil from coming loose from the cap before closure a circumferential groove is formed in the inside of the skirt wall immediately below the cap top disc. The outer edge of the foil snaps into the groove but does not remain in the groove when the cap is removed for dispensing contents. A tab is formed extending out from the edge of the foil to be gripped by the consumer to remove the foil. This tab is folded over when the tab and cap are intact.

Abstract: A two-piece child-resistant closure having a molded plastic inner component and a molded plastic outer component, the inner component having a double ended liner retention bead that projects radially inwardly from the inside of an annular skirt portion to retain a sealing liner in a position that is adjacent to the underside of a top panel portion thereof without the need for an adhesive, the inner portion further having a helically extending thread that projects radially inwardly from the annular skirt portion, the thread having an uppermost portion with a 0.degree. helical angle that is positioned between the spaced apart ends of the double ended liner retention bead to reduce the required vertical spacing between the liner retention bead and the start of the helical thread to permit the closure to be applied to a container with a standard finish portion.

Abstract: A molded plastic closure for a beverage container, the closure having a shell with a top panel and a depending skirt, the shell being molded in one piece from a hard thermoplastic material. The closure is provided with an annular flange which extends from the underside of the top panel and which forms an annular space with the inside of the skirt. A liner is formed in situ within the closure by compression molding from a compression moldable soft, rubbery thermoplastic material, the underside of the top panel and the inside of the annular flange serving as molding surfaces. The annular flange is supported against lateral loads by a series of ribs which extend between the annular flange and the depending skirt. The liner is interlocked with the annular flange by interengaging ribs and recesses. Both a top seal only closure for non-pressurized beverages and a top and side seal closure for pressurized beverages are disclosed.

Abstract: A closure for a container having generally helical threads on the neck finish is formed from a one-piece cap shell of thermoplastic material including a top wall and a peripheral skirt, the skirt having a plurality of spaced, hard, flexible generally vertical thermoplastic ribs integral with the shell for contacting the threads of the container. Each rib is so constructed and arranged that it has sufficient resistance to cold flow that it only slightly flexes and bends around the thread to form a shallow indentation on the rib when the rib is forced into contact with the thread, the indentation being sufficient to provide purchase on the threads for removing the closure.

Abstract: An all-plastic press-on, twist-off closure for a container having threads in the neck finish is made of a hard plastic shell having a top and a peripheral skirt. A gasket member is provided on the inside of the shell located adjacent the top and the shell skirt. The gasket member has resilient deformable ribs for engaging the threads and the gasket member and the shell skirt are held together against rotation with respect to each other by interlocking spline means on the shell skirt and the gasket member skirt.

Abstract: A floating cap seal for sealing containers whose openings are equipped with non-planar surfaces includes a seal which floats upon a ring permitting the seal to effectively seal uneven vessel opening surfaces.

Abstract: A container closure includes liner adapted to seal a container having contents under vacuum pressure, and a closure member securing the liner thereto about the liner periphery. An interior extent of the liner is thereby permitted movement relative to the closure member, i.e., is not secured to the closure member. At the point of container initial closure, the liner interior extent is withdrawn under vacuum pressure from its theretofore normal self-biased disposition adjacent the closure member to within the upper neck of the container and is deformed to the extent that initial container pressurization occasions. Upon loss of such initial vacuum pressure, the liner interior extent moves into its normal self-biased disposition adjacent the closure member. Discernment of the disposition of the liner interior extent relative to the closure member is thus indicative of whether the initial vacuum pressure is being maintained or has been lost.

Abstract: A composite closure for a container is disclosed which includes an outer plastic cap and an inner plastic sealing liner. Formation and retention of the sealing liner within the cap is promoted by the provision of an annular liner-retaining lip which extends inwardly from a skirt portion of a cap in closely spaced relation to its top wall portion, and thus defines an annular recess therewith, Liner retention is further enhanced by the provision of a plurality of circumferentially spaced first liner-engaging projections which are arranged in adjacent pairs within the annular recess of the cap in converging relation with each other. Liner retention is further enhanced by the preferred provision of a plurality of second circumferentially spaced liner-engaging projections extending integrally from the top wall portion of the cap in operative association with the converging adjacent pairs of the first projections.

Abstract: A screw cap and sealing liner construction including a cap body having a transverse top wall with an inside surface, and having an annular skirt depending from the top wall, the annular skirt having an internal screw thread which extends upward and has a top end located closely adjacent the inside surface. A sealing liner is disposed immediately below and against the inside wall surface, and has a peripheral portion located between this surface and the top end of the screw thread to be engaged and positioned thereby. A nib is provided on the inside of the annular skirt at a location circumferentially spaced from the top end of the screw thread. The nib is adjacent the inside surface of the top wall and engages the underside of the sealing liner to retain the liner in position below this surface. The arrangement simplifies both the molding of the cap and the stripping of the cured part from the mold.

Abstract: A plastic closure cap and liner retention arrangement therefor which permits installation of the liner into the cap without distortion of the liner, and thereafter effectively holds the latter captive during subsequent handling or use of the cap. The construction comprises a cup-shaped molded plastic cap having a top wall and an annular side wall, and a sealing liner carried in the cap adjacent its top wall. Internal threads in the cap wall enable the cap to be screwed onto the threaded neck of a container in the usual manner. The cap interior has a ledge structure which may be annular, and in which the liner is nested. The ledge is preferably integral with the top and side walls of the cap. With the cap inverted, and following insertion of the liner into the cap, a punch having one or more tapered working edges is applied to the ledge and displaces a portion thereof to form a retention shoulder.

Abstract: A thermoplastic closure comprising a top wall and an internally threaded skirt and adapted to receive a resilient sealing disc in which an annular flexible protrusion depends from the inner side of the top wall adjacent the intersection of the top wall and skirt but spaced from the skirt. As the closure is applied to a container neck the protrusion acts to fold the periphery of the sealing disc over the outer edge of the container neck and onto the outer side surface and radius of the container neck to thereby effect a seal.

Abstract: A tamper-indicating container seal for use with sealed containers comprising a translucent cap, having a rupturable membrane placed in the cap which is adapted to seal to the container and means, such as a deposit of adhesive, are provided to bond a portion of the rupturable membrane to the cap.

Abstract: A closure for an externally screw threaded standard glass or plastics container has a moulded plastics shell and a liner gasket which can turn freely in it. The liner is retained in the shell by a central spigot which fits loosely in a hole in the center of the liner gasket, but has an enlarged head.The gasket, which is smaller in diameter than the top of the shell, is pressed against the top end of the container, for which it is designed, by one or two ribs. This arrangement allows the liner gasket to remain stationary on the container at the commencement of releasing the closure.

Abstract: A vessel for use with a closure member of type having a telltale therein for tamper indication and movable in first and second opposite senses relative to said vessel for joinder and removal. The vessel comprises the customary neck terminating in a vessel mouth and defining surface extent circumscribing the mouth and inclusive of vessel sealing surface and the neck has the typical threads for closure member securing thereon. In accordance with the invention, the vessel surface extent is adapted for engaging the telltale and is configured to effect first and second different engagements therewith respectively in the course of the first and second sense movements. With such facility, the vessel permits the telltale to be moved into closure relation with the sealing surface and to be selectively positively restrained from movement relative to the mouth in the initial phase of the second closure member movement.

Abstract: A plastic closure having pilfer-proofing characteristics for a container including a mouth-neck portion having formed on its peripheral surface an external thread and an annular flange located beneath it. The closure includes a top panel wall and a cylindrical skirt wall extending downwardly from the peripheral edge of the top panel wall. A breakable line extending circumferentially is formed on the skirt wall to divide the skirt wall into a main portion above the breakable line and a pilfer-proof bottom portion below it, and an internal thread adapted to be fitted with the external thread of the mouth-neck portion of the container is formed on the inner surface of the main portion of the skirt wall. The inner surface of the pilfer-proof bottom portion has formed therein at least one flap extending radially inwardly therefrom.

Abstract: A crown closure and container comprising a glass container having a crown finish without threads, a closure comprising a rigid plastic outer shell and an inner cup-shaped liner. The outer shell comprises a top panel and a peripheral skirt. The liner is made of soft resilient plastic material and comprises a top wall and a peripheral wall. Interengaging cam surfaces are provided between the inner surface of the skirt of the shell and the outer surface of the peripheral wall of the liner such that when the closure is applied to the crown finish by an axial motion of the closure relative to the container, the liner if forced into the shell and the upper portion of the liner engages the crown finish of the container. The peripheral skirt of the outer shell is formed with threads so that the upper portion of the liner is forced into the threads and will allow for sufficient interference with the liner and finish to permit removal of the closure by rotation of the shell in relation to the liner.

Abstract: The screwcap comprises an inner cap and an outer cap. The outer cap is threaded on a container neck. The screwing action presses the inner cap and its sealing layer in an axial direction against the opening edge. An outer edge portion of the inner cap projects radially over the neck and is at a first distance over a projection on the inside of the outer cap collar. The projection only contacts the outer edge portion of the inner cap when the outer cap is unthreaded. Continued unthreading movement initially only raises the inner cap from the opening edge at a locally defined peripheral point through engagement of the projection on the lower edge of the inner cap outer edge portion, prior to complete raising of the inner cap, to eliminate a vacuum in the container. This reduces the force necessary for opening the screwcap.

Abstract: A closure for fitment to the threaded neck of a container is disclosed. The closure is especially adapted for use in packaging products such as carbonated beverages. The closure has a circular top wall and an annular skirt downwardly depending therefrom. The skirt carries about its inside surface a closure thread for cooperation with the neck thread of the container. A circular, flexible, resilient liner is positioned against but rotatable with respect to the inside surface of the top wall and has a diameter greater than the outside diameter of the container lip which defines the container mouth. There is provided an annular projection which is located adjacent the inside intersection of the top wall and the skirt. This projection has a configuration whereby it presses the liner on the outside edge of the container lip to form a gas-tight seal when the closure is fitted onto the container.

Abstract: A cap liner in the form of a sandwich and so arranged that a compressible intermediate layer in the form of discrete compressible strips of relatively great thickness is disposed between two relatively thin non-resilient outer layers. The intermediate layer can be squeezed beyond the periphery of the material for making a better seal and the separate rods will be joined together in abutting fused relationship when the intermediate layer is so compressed. One of the outer layers can be eliminated, in which case the top wall of the cap serves in its place.

Abstract: A bottle cap seal cooperates with the top wall of a bottle cap so as to provide visible indicia.

Abstract: A stress failure resistant container cap for a threaded neck container in the nature of a carboy, such as large acid carboys, wherein the containers are usually large and heavy and closure caps therefor are also extremely heavy in structure. Carboys, for example, are sufficiently large that users sometimes over-tighten the cap using a wrench or similar tool. This can result in cap failures due to stress cracking due to the high torque applied to the cap. The high torque applied to the cap, and its coaction with the threads of the neck, when high or excessive torques are applied, tend to apply a strain in the corner juncture between the cap top and neck thereof. This can, and frequently has, resulted in cracking of the cap material. The strain is applied by a tendency to apply a bending force to the cap at the juncture corner.

Abstract: A composite closure for a bottle or like container is disclosed which includes a compression molded plastic cap and a plastic sealing liner retained within the cap. Effective retention of the sealing liner in position within the plastic cap is provided by an inwardly extending annular lip disposed between an internal thread formation of the plastic cap and its top wall portion, and a ring of projections extending integrally from the inner surface of the top wall portion of the cap. The sealing liner includes an annular bead portion adjacent to and in engagement with the annular lip and ring of projections so that the liner is effectively retained in position within the plastic cap.

Abstract: A safety closure comprises a cap having a pair of locking lugs which engage complimentarily disposed camming surfaces on the associated container and a plug or valve style liner disposed within the cap. The liner includes a generally planar disk having a hollow cylindrical plug defining an outer surface having a compound taper and a conical projection spaced concentrically about said cylindrical plug. The liner extends into the finish of the container and seals it during axial translation of the closure corresponding to 180.degree. or less rotation thereof. The liner, due to its simplicity, may be fabricated of material which exhibits resistance to the product within the container but which would otherwise be unsuitable or difficult to mold into the cap.

Abstract: A threaded thermoplastic closure having a free-floating liner is disclosed. To prevent backoff of the closure from a container, studs are provided on the top wall of the closure which anchor the closure to the liner, thus utilizing the resistance to rotation present between the liner and the container lip.

Abstract: A composite closure having a plastic cap with a specially configured arrangement for retention of a plastic liner. In one embodiment, integral pedestals are provided each have an overhang, such as a mushroom-shaped head, to provide a mechanical interlock with the liner. In other embodiments, pedestals are provided each having a fusible heat concentration zone that is fused to the liner as the liner is compression molded and heated in the cap. In one embodiment, the fusible pedestals are each cylindrical. In another embodiment, the fusible pedestals are each in the shape of a pyramid.

Abstract: A container and closure construction featuring double means of liquid tight-sealing with a threaded closure so arranged as to double seal combined or sequentially against two separate areas of the rim of a container neck to provide sealing properties even when closure is partially unscrewed from the top of the rim of the container. A preferred embodiment has its application of the above arrangement together with child proof safety closures having unique safety locking arrangements in the form of coincidentally registered abutments and projections formed in and/or on said container and closure which do not substantially interfere with applying the closure to the container but which can be disengaged only through purposeful mind-controlled dextrous manipulation.

Abstract: The present invention relates to a recloseable multi-seal package for food or the like characterized in that a triple seal of the contents is effected, and further characterized in that, upon removal of a sealing film or membrane, identifying indicia printed on a central portion of the film remain on a replaceable cover member.

Abstract: A container assembly including a bottle and cap arrangement is disclosed herein along with a cooperating arrangement for placing the cap arrangement in a predetermined closed position relative to the bottle. The assembly also includes a seal arrangement for maintaining a proper seal when the bottle is closed.

Abstract: A container having a rimmed shrink cap closing the mouth thereof. The shrink cap comprises a cover made of a nonshrinkable material and having an outer diameter somewhat larger than the external diameter of the tubular mouth of the container. The shrink cap also comprises a tubular skirt portion made of a shrinkable material. The upper end of the tubular skirt portion has substantially the same outer diameter as that of said cover. The skirt portion of the cap is shrunk so that the lower portion of the skirt is in tight sealing contact with the neck of the container and the upper edge portion of the cap is formed in the shape of a laterally outwardly projecting rim. Because of the thus-formed rim, the cap can readily be twisted so that it can be removed from the tubular mouth of the container.