Abstract:
A method of forming a container includes blow molding a primary form of the container inside a primary mold. The primary form has an exterior surface. The method also includes applying a fluid to the exterior surface of the primary form to shrink the primary form and to form a shrunken form of the container. Furthermore, the method includes blow molding a secondary form of the container from the shrunken form inside a secondary mold.
Abstract:
A container comprising a finish, a sidewall portion extending from the finish, a base portion extending from the sidewall portion and enclosing the sidewall portion to form a volume therein for retaining a commodity, and a plurality of horizontally disposed rib members disposed in at least one of the sidewall portion and the base portion. The plurality of horizontally disposed rib members is continuously disposed about the sidewall portion or the base portion and, in some embodiments, defines a perimeter length about 3-5% shorter than perimeter lengths of adjacent lands. The plurality of horizontally disposed rib members providing improved structural integrity such that a pre-fill size of the container is approximately equal to a post-filled, cooled size of the container.
Abstract:
A container assembly including a container and a closure. The container includes a polymeric body and a polymeric finish. The polymeric finish includes a plurality of threads. The closure includes a plurality of metallic lugs configured to cooperate with the plurality of threads to couple the closure to the polymeric finish.
Abstract:
A plastic container including an upper portion, a base, a plurality of surface features, and a substantially cylindrical portion. The upper portion has a mouth defining an opening into the container. The base is movable to accommodate vacuum forces generated within the container thereby decreasing the volume of the container. The plurality of surface features are included with the base and are configured to accommodate vacuum forces. The substantially cylindrical portion extends between the upper portion and the base.
Abstract:
A system for pre-stretching a preform utilized in forming a container. The system including an oven, a conveyor system configured for transporting preforms through the oven a blow molding station having at least one mold with interior surfaces defining the shape of the container, and a transfer station configured to transfer a preform from the oven into the blow molding station. The system also includes a stretch rod and an actuator. The stretch rod is movable between retracted and extended positions such that, when in the extended position, the stretch rod is positioned interiorly of the preform and the preform is elongated by the stretch rod to form a pre-stretched preform. The stretch rod is located to form the pre-stretched preform prior to the blowing medium being introduced into the preform in the blow molding station.
Abstract:
A container assembly including a container and a metallic closure. The container includes a polymeric body and a polymeric finish. The polymeric finish includes a plurality of threads. A lug lock is associated with each one of the plurality of threads. The metallic closure includes at least three metallic lugs configured to cooperate with the plurality of threads to couple the metallic closure to the polymeric finish.
Abstract:
A container assembly including a container and a metallic closure. The container includes a polymeric body and a polymeric finish. The polymeric finish includes a plurality of threads. A lug lock is associated with each one of the plurality of threads. The metallic closure includes at least three metallic lugs configured to cooperate with the plurality of threads to couple the metallic closure to the polymeric finish.
Abstract:
A polyethylene terephthalate container having a hydrogen generator and catalyst disposed or otherwise incorporated in components of the container, including the closure, closure insert, label, label glue, and/or any other portions of the final container assembly. In addition, the catalyst and the hydrogen generator can both be located in the same component. Methods for dispersing the hydrogen generator and catalyst in the container wall without affecting clarity are provided.
Abstract:
A method of forming a container includes providing a preform of the container. The preform has a wall with an interior region and an exterior region. The method also includes disposing the preform in a mold cavity wherein the mold cavity has a mold surface. Furthermore, the method includes introducing a substance into the preform to expand the preform toward the mold surface. The interior region of the wall has a first interior temperature prior to the introduction of the substance and a second interior temperature after the introduction of the substance. The exterior region of the wall has a first exterior temperature prior to the introduction of the substance and a second exterior temperature after the introduction of the substance. The method further includes controlling the first interior temperature to be greater than the first exterior temperature prior to the introduction of the substance.
Abstract:
A container comprising a finish, a sidewall portion extending from the finish, a base portion extending from the sidewall portion and enclosing the sidewall portion to form a volume therein for retaining a commodity, and a plurality of horizontally disposed rib members disposed in at least one of the sidewall portion and the base portion. The plurality of horizontally disposed rib members is continuously disposed about the sidewall portion or the base portion and, in some embodiments, defines a perimeter length about 3-5% shorter than perimeter lengths of adjacent lands. The plurality of horizontally disposed rib members providing improved structural integrity such that a pre-fill size of the container is approximately equal to a post-filled, cooled size of the container.