Abstract:
A container (110) having an inverted active cage generally includes an enclosed base portion (120), a body portion (130) extending upwardly from the base portion, and a top portion (140) with a finish (150) extending upwardly from the body portion. The body portion further includes a central longitudinal axis (L), a periphery, a plurality of active surfaces (160), and a network of pillars (170). Unlike the prior art, each of the plurality of active surfaces is outwardly displaced with respect to the longitudinal axis, while each of the network of pillars is inwardly displaced with respect to the longitudinal axis. The plurality of active surfaces, together with the network of pillars, are spaced about the periphery of the container in order to accommodate vacuum-induced volumetric shrinkage of the container resulting from a hot-filling, capping and cooling thereof.
Abstract:
A hot fill plastic container (10) has a dome portion (24) with a convex outer surface that defines a maximum outer diameter (D2) of the container so as to extend outwardly beyond a main body portion (18) of the container. The dome portion has a first curved portion (26) having a first curvature and a second curved portion (32) having a second curvature. The generally egg-shaped dome portion enhances the crush resistance of the dome and provides a point of contact between containers when they are placed adjacent to one another. A circumferential stiffening groove (48) may be provided near a lower end of the dome portion.
Abstract:
The present invention provides a closure for a hot-fill container comprising: a cap member having a top surface, a bottom surface, and a wall portion having an outer surface and an inner surface wherein the inner surface comprises threads to mate with a threaded neck finish of a hot-fill container; a flexible diaphragm member comprising: at least one flexible portion in a first position and a sealing lip portion to seal a liquid in the container thus preventing the liquid from traveling to the threaded neck finish of the container; and a disc member interposed between the cap member and the diaphragm member, wherein the disc member comprises: a hydrophobic filter membrane and at least one vent providing a path for air to travel from an area near the threads to the hydrophobic filter member, wherein the flexible diaphragm member flexes to compensate for a change in pressure within the container by transitioning downwards in response to a decrease in pressure and/or by transitioning upwards in response to an increase in pressure.
Abstract:
A system combining a machine for blow-molding articles with a universal in-mold labeling apparatus. The apparatus has a frame on which turntables are mounted. Each turntable has an air rotary union, facilitating rotation of the respective turntable, and suction cups adapted to pick, hold, and release labels. The turntables deliver labels to the open molds of the machine. The apparatus also has a vertical slide positioned between the turntables. A placement head engages the turntables and moves up the vertical slide to a position in the open molds. At least one label magazine is affixed to the frame and retains the labels. Strategically placed air valves provide air and vacuum to pick, hold, and release labels. A human machine interface facilitates communication between an operator of the system and the system. Finally, a control system is provided to allow the operator to program and control both the machine and apparatus.
Abstract:
Method and system for handling a plurality of hot-filled and capped containers having temporary deformations or distortions caused by vacuums induced in the containers For each container, temporary deformations are confined or directed to a particular portion of the container Annular hoop rings can be provided to confine the temporary deformations to a smooth sidewall portion of the container between the annular hoop rings Alternatively, one or more supplemental vacuum panels can be provided to confine or direct the temporary deformation thereto The annular hoop rings and the one or more supplemental vacuum panels can provide for substantially stable touch points for the container The containers are conveyed with temporary deformations such that substantially stable contact points of each container are in contact with corresponding substantially stable contact points of other containers
Abstract:
A plastic container (10) of the type that may be formed from a material such as PET using the stretch blow molding process includes a main body portion (14) and a base portion that is characterized by a relatively tall and narrow profile above the standing ring (18) and that has a deep inset recess defined therein. The deep inset recess is defined in part by an upstanding inner sidewall portion (22) adjacent to the standing ring (18) that has a height that may be greater than about 0.35 inch. The upstanding inner sidewall portion (22) may have a substantially straight portion that is substantially parallel to a substantially straight portion (27) of an outer sidewall of the base.
Abstract:
Plastic containers, base configurations for plastic containers, and systems, methods, and base molds thereof. Plastic containers have base portions constructed and operative to accommodate internal pressures within the container due to elevated temperature processing, such as hot-filling, pasteurization, and/or retort processing. Plastic containers can also be constructed and operative to accommodate internal pressures within the filled container resulting from subjecting the filled plastic container to cooling or cool-down processing.
Abstract:
A method of plastic container (10) having a deep inset base (20) of the type that has a standing ring (18) for supporting the container (10) on a flat surface includes steps of molding a container blank having a standing ring (18) and a base projection portion (20) that is formed beneath the standing ring (10) and relatively displacing the base projection portion (20) upwardly with respect to the standing ring (10) until the base projection portion (20) is positioned above the standing ring (10). An improved plastic container (10) having a deep inset base (20) is also disclosed.