Abstract: A closure system including a cap and a container, the cap including a top wall, a depending skirt having a bottom end and an annular projection integral with the bottom end of the skirt and having a curled free end portion which has grooves formed by threads in the neck when the cap is pressed on the container in sealed relationship.

Abstract: There is disclosed a novel bottle and cap closure system for dropper bottles and the like which comprises a set of lugs or cams and a snap bead provided in the cap and a set of lugs or cams provided on the neck portion of the bottle. After the bottle is filled, the cap is secured to the bottle by having the snap bead on the cap engage the lugs or cams on the bottle. The snap bead in the cap is carried on the circumferential lower edge of a tear-away band. After the tear-away band is removed to use the contents of the bottle, the cap is re-secured to the bottle by engaging the lugs or cams in the cap to the lugs or cams on the bottle.

Abstract: A plastic container lid is formed by injection molding and comprises a sheet-like main body portion with a downwardly-open hollow upwardly-extending annular projection extending around the periphery of the body portion, the annular projection having an inner wall extending upwardly from the periphery of the body portion, a top wall extending radially outwardly from the top of the inner wall and an outer wall extending downwardly from the outer periphery of the top wall, with the inner and outer walls being substantially equal in height. An annular skirt portion which extends outwardly from the lower end of the outer wall and curves to extend downwardly to a lower annular edge. The skirt portion has an internal annular rib extending around and projecting inwardly from the inner surface of the skirt portion.

Abstract: A new structure of a container and closure adapted for manufacture by an injection molding process is provided. The container includes an integrally formed neck portion having an annular spring for releasably engaging an engagement step formed in the body portion of the bottle cap. The cap is released by simply pressing a projection which extends from the spring through an opening formed in the bottle neck.

Abstract: A resilient plastic bottle cap for a five-gallon water bottle of the type having a crowned neck including an external upper bead, the cap having a top portion with a depending skirt which fits snuggly around the exterior of the bottle neck and so long as it remains intact prevents tampering with the contents. An inner annular groove divides the depending skirt into upper and lower portions and an inner groove is formed between the annular groove and the lower edge of the lower part of the depending skirt and adjacent a tab so that the lower part of the skirt may be torn off to permit easy removal of the cap from the water bottle. Several inturned annular flanges are formed on the inner surface of the depending skirt to form multiple flexible seals and retaining means engaging the external upper bead of the water bottle.

Abstract: The invention relates to a pourer plug device for a receptacle having a neck which is equipped with a thermosealed lid, and comprising a plug element and a cap with a pourer aperture, characterized in that the plug element (4) comprises in its center a cylindrical core (10) which presents at its base a curing knife (14) which is able to punch said lid (2) when said cylindrical core (10) is axially displaced towards said lid (2) in response to the cap (7) being displaced towards the lid (2).

Abstract: A tamper indicating package including a container having integrally molded flexible retainer means for engaging and resisting the movement of a tamper indicating ring attached to a closure by frangible means so that separation of the ring of the closure indicates tampering.

Abstract: A multiple compartment container and closure assembly with a container having at least two adjacent compartments with end portions terminating in a common surface at one end of the container. The end is sized to accept a cap and the surface has a thin wall portion in communication with each of the compartments. A cap is sized to slidably fit on the end of the container which has puncture means being positioned in alignment with each of the thin wall portions of the container so that movement of the cap from a first position on the end to a second position causes the puncture means to puncture the respective thin wall portion with which it is aligned, to permit access to the contents of the adjacent compartments.

Abstract: A fuel cap has an anti-splash attachment which includes an outer splash-back baffle, an inner foam plug element and a retainer post which supports the outer baffle and inner plug element and tethers them by a releasable snap-on connection to an inner baffle-supporting stem of the fuel cap. The inner plug element when substantially dry is in a contracted state wherein it is smaller in diameter than the inside diameter of the fuel tank filler neck to which the fuel cap is applied. An annular gap is then present between the exterior side surface of the plug element and the interior surface of the filler neck, making it easy to insert and withdraw the fuel cap with the anti-splash attachment thereon into and from the filler neck.

Abstract: Disclosed is a composite vessel lid comprising an outer lid of a plastic material to be engage with a neck of a vessel and an inner lid of a thin metal sheet held within the outer lid. Fine projections are formed at predetermined intervals in the abutting portion between the outer and inner lids, and a gas-releasing path is formed among the fine projections.Since the gas-releasing path is not formed in a portion engaging with a vessel, such as a screwed portion of the outer lid, the engaging force is not reduced and the strength of the outer lid is not reduced, and release of gas is promptly accomplished effectively at the initial stage of opening.

Abstract: A cap assembly for protecting the valved fitting of a pressurized fluid cylinder of the type provided with an externally threaded cap ring. The assembly includes an internally threaded adaptor ring engageable on the cap ring and a dome-shaped cap for enclosing and protecting the valved fitting, the cap being provided with opposed latches for detachable engagement with the adaptor ring.

Abstract: A linerless cap closure includes a circular top wall and a depending annular skirt having an internal thread with a tamper-evident band below the skirt. A sealing member is integral with the lower surface of the top wall and includes an annular protrusion having a depending annular axial projection. The tamper-evident band is connected to the skirt with a plurality of spaced tear tangs and a permanent connection and the band has an inwardly-directed bead with inclined ramps extending from the inner edge of the bead to the lower edge of the bead.

Abstract: A threaded sleeve of plastics material, e.g. in the form of a cap, which is suitable for screwing onto a bottle opening with an external thread. The thread of the threaded sleeve is divided into segments. These segments can be separated from one another in the peripheral direction by spaces of at least 0.4 mm and can have a length in the peripheral direction of 3 to 10 mm. Threaded sleeves of this type can be manufactured with simply constructed moulds and demoulded in a simple manner. After the demoulding the thread segments do not mark the external wall of the threaded sleeves.

Abstract: A tamper evident indicating means for a vacuum packed package or bottle comprising an indicia printed seal that is separated from a translucent closure member when the package or bottle is under vacuum so that the indicia is not readable or discernible through the closure member, but when the vacuum is lost, as through tampering, the seal contacts the closure and the indicia printed thereon is readable or discernible to warn of possible tampering.

Abstract: A composite closure having a metal shell with metal container engaging lugs and an attached molded plastic tamper evident insert band providing the combination of a pressure resistant seal with a plastic tamper evident indication.

Abstract: A container and cover combination and method of assembling the same is disclosed. the container and cover combination include a container 12 having a neck portion 20 defining an opening 22 into the container 12. A removeable cover 16 is fastened onto the neck portion 20. The cover assembly includes a tamper evident mechanism for indicating an attempted opening of the cover assembly. The tamper evident mechanism includes a substantially cup-shaped cap member 18 having a fractureable portion 30 and one way threads for locking the cap member 18 against unthreading from the neck portion 20 when the cap member 18 is rotated in one direction relative to the neck portion 20 and for forcing the cap member 18 further onto the neck portion to fracture the fractureable portion 30 when the cap member 18 is rotated in the opposite direction relative to the neck portion 20 thereby evidencing the attempt at opening.

Abstract: A container having an externally threaded pour spout on which an internally threaded cap is screwed. A tamper-proof, removable, membrane-like or diaphragm-like closure for the spout is secured to the circumferential lip of the spout with a peelable seal. The membrane-like closure has an elongated pull tab extending therefrom, by pulling on which the closure may be peeled off the end of the spout. The external threads on the spout are interrupted so as to provide a groove in which the pull tab resides out of engagement or interference with the external and internal threads on the spout and cap.

Abstract: A moldable plastic closure comprising a selectively foamed, unitarily molded layer and at least one layer of barrier resin adapted to retard the migration of oxygen-containing gasses through the closure.

Abstract: In combination, a container and a linerless cap and a method of forming the cap. In the method the cap is molded from plastic and includes a top well, an outer depending skirt and an internal depending substantially annular wall having an upper end integral with and depending from the top wall and a lower free end. Thereafter the free end is engaged by a curling tool to progressively turn the free end away from the internal wall to curve the free end into a curvilinear compressible and resilient free end adapted to be engaged for sealing. The engageable free end of the seal can have a coil, O, U, J or quarter round cross sectional shape and can be a rim, plug or corner seal.

Abstract: A second cylindrical element with a side wall oriented generally parallel to the first plane is telescopically interconnected with a first cylindrical element and includes an upper surface. The second cylindrical element is rotationally displaceable between, first, second and third angular positions within a second plane orthogonal to the first plane and is telescopically displaceable between compressed and expanded positions. A biasing device biases the first and second cylindrical elements into the expanded position. A locking device maintains the first and second cylindrical elements in the first angular position when the first and second cylindrical elements are placed in the expanded position. The locking device enables the biasing device to displace the first and second cylindrical elements into the second angular position when the first and second cylindrical elements are displaced from the expanded position into the compressed position.