Abstract: A tamper-evident package with pressurized contents which includes a closure and associated container which cooperate to provide desired tamper-evidence upon initial removal of the closure from the container, while promoting convenient and comfortable removal and use by consumers.

Abstract: A method of compression molding a plastic article, such as a closure, includes providing a molten polymeric material, comprising a mixture of at least one molten polymer and a gas blended therein. The polymeric material is molded between cooperating male and female molds, with relative movement of the molds controlled to form a mold cavity with a predetermined volume. Formation in this manner acts to produce a molded closure with substantially reduced density, thus achieving desired material savings, while still providing a closure or like article exhibiting desired performance characteristics.

Abstract: A tamper-evident package having pressurized contents includes a closure and associated container which cooperate to provide desired tamper-evidence upon initial removal of the closure from the container, while promoting convenient and comfortable removal and use by consumers. In particular, the package is configured such that from a fully applied position of the closure on the container, the closure is movable through a predetermined angle prior to actuation of the tamper-evident feature on the package. In this fashion, the torque which must be applied to the closure for overcoming the static friction at the sealing interface between the closure and the container can be overcome prior to the application of torque required for operating the tamper-evident feature of the package. The present invention contemplates enhancing the opening performance of the package by configuring the package to include certain structure features to facilitate convenient, consistent, and comfortable use by consumers.

Abstract: A product package embodying the principles of the present invention includes an integrated circuit device which is configured for radio frequency interfacing with associated equipment. The package is configured such that the integrated circuit device is disposed within the package, thus assuring that the device remains associated with the package's contents. Notably, this arrangement facilitates use of the device for applications apart from product tracking and inventory control, including product promotions, storage, and dissemination of product information, and quality assurance including tamper-indication. A packaging machine for writing information on, and or reading information from, the integrated circuit device is also disclosed.

Abstract: A product package embodying the principles of the present invention includes an integrated circuit device which is configured for radio frequency interfacing with associated equipment. The package is configured such that the integrated circuit device is disposed within the package, thus assuring that the device remains associated with the package's contents. Notably, this arrangement facilitates use of the device for applications apart from product tracking and inventory control, including product promotions, storage, and dissemination of product information, and quality assurance including tamper-indication. A packaging machine for writing information on, and or reading information from, the integrated circuit device is also disclosed.

Abstract: A composite closure for a container having carbonated contents includes an outer closure cap having a top wall portion, and an annular depending skirt portion. A disc-shaped sealing liner is positioned within the closure cap adjacent the inside surface of the top wall portion. The liner includes an inwardly facing sealing portion at the periphery thereof, and further includes an annular seal bead which projects downwardly from the liner in a direction away from the top wall portion. The closure is configured for enhanced sealing with an associated container, with the top wall portion of the outer closure cap preferably including a relatively thick, peripheral reinforcing region which overlies the annular seal bead of the liner for further enhancing sealing.

Abstract: A method for forming a liner in a closure for a container includes forming a plastic closure cap having a circular top wall portion and a depending annular skirt portion depending from the top wall portion, and depositing a quantity of moldable liner forming plastic material in the cap. A liner forming assembly which has a liner tip and a liner sleeve, the liner tip being axially movable relative to said liner sleeve, and the liner sleeve defining a plurality of circumferentially located, radially oriented venting channels positioned on an outer surface thereof, is advanced into the cap to engage the sleeve with the cap, adjacent to the venting channels, to define a liner space. The liner tip is advanced into the cap, relative to the liner sleeve, to compress a liner forming material to form the liner while restraining the flow of moldable plastic between the sleeve and the cap, and while venting gas out of the liner space through the venting channels.

Abstract: A container closure having a multiple liner seal is disclosed. The closure comprises a plastic closure cap having a circular top wall portion and a depending annular skirt portion. The skirt portion has an internal thread formation for threadedly engaging a cooperative container. In a typical closure, a pilfer band depends from the skirt portion. The closure cap has an abutment internal thereto, generally at the juncture of the top wall portion and the skirt portion. A first resilient, molded-in plastic seal is positioned in the cap adjacent to and against the top wall portion, and a second resilient plastic seal is positioned in the closure and extends thereacross resting upon the abutment. When the closure is threadedly engaged with a container, the second seal provides a top/side seal to seal the contents from the environs. The closure will seal a container with or without the second seal in place because of the independent sealing capabilities of the first seal.

Abstract: A tamper-indicating plastic closure includes a pilfer band at least partially detachably connected to a skirt portion of the closure by a frangible connection. The frangible connection comprises a plurality of circumferentially spaced frangible bridges, which fracture attendant to removal of the closure from an associated container to provide visually discernable evidence of opening. In order to facilitate high-speed application of the closure to a container, one or more regions of the frangible connection are preferentially strengthened by the provision of relatively strengthened frangible bridges. At least one of the strengthened bridges is generally diametrically opposed to the leading portion of the internal thread formation of the closure.

Abstract: A tamper-evident package with pressurized contents which includes a closure and associated container which cooperate to provide desired tamper-evidence upon initial removal of the closure from the container, while promoting convenient and comfortable removal and use by consumers.