Abstract: A lug-type resealable beverage container is described. The lug-type resealable beverage container has a metallic containment vessel, an annular sleeve, and a metallic cap. The metallic containment vessel has a containment area for receiving a liquid. The containment vessel has a closed end separated from an open end by a tubular sidewall. The annular sleeve is joined about the containment vessel adjacent the open end and has first and second lug members extending radially outwardly. The metallic cap has first and second lug members for cooperative engagement with the first and second lug members on the sleeve. Cooperative engagement between the first and second mating lugs and the first and second lug members encloses the liquid within the containment vessel.

Abstract: A lug-type resealable beverage container is described. The lug-type resealable beverage container has a metallic containment vessel, an annular sleeve, and a metallic cap. The metallic containment vessel has a containment area for receiving a liquid. The containment vessel has a closed end separated from an open end by a tubular sidewall. The annular sleeve is joined about the containment vessel adjacent the open end and has first and second lug members extending radially outwardly. The metallic cap has first and second lug members for cooperative engagement with the first and second lug members on the sleeve. Cooperative engagement between the first and second mating lugs and the first and second lug members encloses the liquid within the containment vessel.

Abstract: A container is provided having a can body defining an interior region for containing a product. The can body is of a metal/plastic multi-layer structure construction. The can body includes a side wall, a bottom profile comprising an annular rim defining a stand for the can body, an outer transition portion integral with the annular rim, and an inner transition portion connecting the annular rim to a central dome portion. In one embodiment a plurality of reinforcing ribs e.g., between 15 and 120, inclusive, are formed in the metal/plastic multi-layer structure in at least one of the outer transition portion and the inner transition portion. The ribs are formed in a spaced apart relation around the perimeter of such portion(s). In another embodiment a can body is made from a metal plastic laminate which is drawn and ironed. In one embodiment, the upper portion is die necked in a plurality of necking steps.

Abstract: An injection nozzle device including multi-polymer injection nozzles comprising an assembly of shells, and having fixed, tapered passageways communicating with annular orifices close to a nozzle gate and to each other, and polymer flow balancing and directing means in the passageways in the form of concentric and eccentric chokes.

Abstract: A closure member for an open end of a container includes a main body segment secured to edge portions of the container and a flap segment pivotally mounted to the main body segment. The main body segment defines a discharge port through which fluid discharges from the container; and the flap segment moves between a first position in which is covers the discharge port and a second position away from the discharge port.

Abstract: Injection molded and injection blow molded multi-layer substantially rigid plastic articles are provided, which, in preferred embodiments, include: articles having at least three layers wherein a portion of the marginal end portion of their internal layer is folded over within the marginal end portion of the side wall of the article, preferably in the flange if the article is a parison or container; the aforementioned articles wherein the folded over portion is toward the inside or the outside of the side wall; the aforementioned articles, parisons, and containers, open-ended, or closed with end closures double seamed thereto or flexible lids secured thereto by an adherent, or heat seal, or other suitable means; the aforementioned articles wherein the folded over portion and any not folded over portion of the marginal end portion of the internal layer, extends substantially uniformly into the marginal end portion of the side wall of the article, parison or container; at least five layer plastic articles

Abstract: Apparatus for unit cavity and multi-cavity, multi-layer injection molding and injection blow molding machines are provided, which in preferred embodiments, include:co-injection nozzle means including multi-polymer co-injection nozzles comprising an assembly of shells, and having fixed, tapered passageways communicating with annular orifices close to the nozzle gate and to each other, and polymer flow balancing and directing means in the passageways in the form of concentric and eccentric chokes;valve means for each co-injection nozzle, operative in the nozzle central channel to and adapted to be moved to different positions to block and unblock the nozzle orifices, and, in each nozzle to controls the initiation, flow and termination of flow of a plurality of polymer flow streams, comprised of an elongated sleeve having an axial central passageway and a port in its side wall and axially-reciprocable within the nozzle central channel, and, either a solid pin within and fixed relative to the sleeve, or, more pre

Abstract: An injection molding machine for simultaneously injection molding a plurality of articles each made of plural polymeric materials. The injection molding machine includes a source of a first polymeric material and a source of a second polymeric material. The injection molding machine also includes a plurality of co-injection nozzles, each of the nozzles has an associated injection cavity mold. Each of the nozzles also has a first flow channel for providing a stream of said first polymeric material to said mold and a second flow channel for providing a stream of said second polymeric material to said mold. The machine further includes a manifold for feeding the polymeric materials from their sources to each of the nozzles and each of the associated molds, such that each of the streams of the first polymeric materials flows from each nozzles into each associated mold simultaneously and each of the streams of the second polymeric materials flows from each nozzle into each associated mold simultaneously.

Abstract: An apparatus for injection molding a plurality of multilayer, multimaterial plastic containers. A plurality of co-injection nozzles are positioned to feed a plurality of cavities defined by a plurality of injection molds and a source of polymer materials is located upstream of the nozzles. The apparatus also includes a flow channel for each of a plurality of polymer streams to define a path between the polymer source and at least one of the co-injection nozzles such that each of the co-injection nozzles is in communication with one of the flow channels for each polymer stream and the polymer streams enter more than one of the co-injection nozzles. The channels are arranged to provide substantially the same flow experience to each polymer stream.

Abstract: A co-injection nozzle having a central injection channel with an open end and providing an injection path for injecting streams of melt materials to form a multi-layer article from the melt material streams. The nozzle comprises interfitting axially concentric members, including at least an interfitting shell and an outer nozzle cap, each having inner and outer surfaces. The nozzle cap has an inner surface with a frustoconical portion enclosing at least a portion of the outer surface of the interfitting shell. An enclosed portion of the outer surface of the shell has a frustoconical shape. The outer and inner frustoconical surface portions are adapted and cooperate to form an annular melt material flow passageway having a fixed tapered frustoconical portion of substantially invariable dimension which terminates at a fixed, annular orifice whose dimension is substantially invariable for flow of a melt material therethrough, for injection of the material from the nozzle.

Abstract: An injection molding machine for simultaneously injection molding a plurality of articles each made of plural polymeric materials. The injection molding machine includes a source of a first polymeric material and a source of a second polymeric material. The injection molding machine also includes a plurality of co-injection nozz;es, each of the nozzles has na associated injection cavity mold. Each of the nozzles also has a first flow channel for providing a stream of said first polymeric material to said mold and a second flow channel for providing a stream of said second polymeric material to said mold. The machine further includes a flow control device for feeding the polymeric materials from their sources to each of the nozzles and each of the associated molds, such that each of the streams of the first polymeric materials flows from each nozzle into each associated mold simultaneously and each of the streams of the second polymeric materials flows from each nozzle into each associated mold simultaneously.

Abstract: A method is described for reducing the diameter of the open end of a can, such as a beverage can, in a necking station while substantially preventing the formation of pleats in the can. The necking station includes a deformable support punch that is positioned within the open end of the can. The punch includes an elastomeric sleeve and a means for providing for lateral deformation of the sleeve, such as an actuator making an interference fit with the sleeve. In the necking station, the can is inserted into a necking die having a transition zone separating an outer cylindrical bore and an inner bore having a reduced diameter. When the top edge of the can is forced past the transition zone in to the inner bore to reduce the dimension of the upper portion of the can, the sleeve is controllably deformed in a manner such that the lateral portion of the sleeve is placed into supporting engagement with the interior wall of the can, pressing the can against the transition zone of the die.

Abstract: An Improved Oxygen Scavenging Polymer containing unsaturated carbon-carbon bonds, functions as an antioxidant when the unsaturated carbon-carbon bonds are triggered by the presence of moisture, wherein the unsaturated polymer contains one or more alkyl, alkenyl, or alkynyl groups or combinations thereof, and the polymer is used in articles.

Abstract: Methods for injection molding and injection blow-molding multi-layer plastic articles, including containers and parisons for forming containers, which comprise providing a plurality of co-injection nozzle means for injecting plastic materials into associated injection cavities to form each article, providing streams of polymeric materials to form corresponding layers of the articles, moving each stream separately to plural nozzle means, separately receiving the streams in the plural nozzle means, and injecting the streams to form the multi-layer plastic articles. Preferably, each stream of material which is to form a corresponding layer of the articles is provided with substantially the same polymer flow, preferably from where each stream is split and moved to each nozzle means. Valve means can be employed in each nozzle means for positively controlling preferably substantially simultaneously the flow and nonflow of respective materials into the central channel of the nozzle means.

Abstract: Disclosed are resin stream modulation or shut-off control apparatus for use in a multi-layer extrusion die head for forming a multi-layer plastic resin parison tube suitable for blow-molding. The tube can be formed into articles such as containers. By use of the apparatus, the tube, and accordingly articles therefrom can have layers which vary in thickness or can have portions wherein layers are omitted, e.g., portions which become flash. In an apparatus herein, there is a resin channel having an exit orifice defining a merge area where a first resin stream merges with at least one second resin stream. A die member adjacent to the exit orifice can define the resin channel. Movable means and the die element are caused to intermittently abut or contact one another at the merge area to control, i.e., modulate or shut-off, the flow of the first resin. There is preferably no contact downstream of the merge area.

Abstract: Multi-co-injection nozzle injection molding and injection blow-molding apparatus for injection molding and injection blow-molding a multi-layer plastics article, parison or container, including a plurality of co-injection nozzles, means associated with the nozzles to channel each material stream which is to form a layer of the article separately to each nozzle, and means for moving the materials streams along their respective channels to their respective nozzles for injection into associated injection mold cavities. The channels preferably provide substantially the same material flow for streams of the same material channeled to the nozzles. Preferably, the nozzles have an axial central channel and a plurality of flow stream passageways with orifices in communication with the central channel, and valve means cooperatively associated with and operative within each co-injection nozzle for there preventing and allowing the flow of respective materials streams from the orifices into the central channel.

Abstract: Multi-co-injection nozzle injection molding apparatus for an injection molding machine for injection molding a multi-layer plastics article or container, comprising a plurality of co-injection nozzles, means associated with the nozzles to channel each material stream which is to form a layer of the article separately to each nozzle, means for moving the materials streams along their respective channels to their respective nozzles and means for combining in each nozzle the streams moved thereto, to form combined streams in the nozzles for injection into associated injection mold cavities. Each of the channels preferably provide substantially the same material flow stream travel path for each material stream of the same material channeled to each nozzle. Each co-injection nozzle has an axial central channel and a plurality of flow stream passageways with orifices in communication with the central channel.

Abstract: Apparatus for selectively controlling the flow of at least three melt material streams through the nozzle of a machine for injection molding multi-layer plastics articles. The nozzle has, for each stream, a flow passageway terminating at an exit orifice. Sleeve means having an internal axial material flow passageway, communicate with the central channel and with one of the flow passageways and are movable axially and/or rotationally to block and unblock at least two orifices. Each flow passageway can include material flow directing means for balancing stream flow around the passageway and its exit orifice, and a tapered portion adjacent its orifice. Preferably, the orifices are fixed. Means can pressurize melt material in a flow passageway between the flow directing means and the associate orifice so that the start of flow of the material through the orifice is substantially uniform thereabout.

Abstract: A method of simultaneously effecting the initiation, flow and termination of flow of corresponding melt streams of polymer materials from a plurality co-injection nozzles of a multi-co-injection nozzle injection molding machine to form a plurality of multi-layer injection molded plastic articles. A melt stream of polymeric material for each layer is provided and feed along an equal flow path to each nozzle using a common pressure source for each stream of a given polymeric material which is to form a layer in more than one article. A valve means effects the initiation, flow and termination of the flow of material simultaneously and identically in each nozzle.

Abstract: Valve means for use in a co-injection nozzle of a multi-polymer injection molding or blow-molding machine wherein the nozzle has an axial or cylindrical central channel, comprised of an elongated sleeve having an axial central passageway and a port in its side wall and axially-reciprocable within the nozzle central channel, and, either a solid pin within and fixed relative to the sleeve, or, more preferably, an elongated pin axially-reciprocable within the sleeve central passageway, the sleeves and pins each mounted in close tolerance slip fits to prevent any significant accumulation or passage of polymer melt material.