A method of manufacturing an off-center container includes: stretching a preform made of resin having a bottomed shape with a stretching rod, heating the preform; and blow-molding the off-center container, in which a central axis of a neck portion is displaced from a central axis of a body portion, by introducing a pressurized fluid into the preform disposed in a mold. The container has a flat shape and a dimension in a first direction in a cross section is longer than in a second direction perpendicular to the first direction. In a circumferential cross section of the preform, a thickness of a first region corresponding to a surface extending in the first direction of the container is set to be thicker than a thickness of a second region corresponding to a surface extending in the second direction of the container.

A container mold includes: a split mold that has a mold space defining a shape of a body portion of a container; and a bottom mold that has a bottom mold surface defining a shape of a bottom surface of the container and is movable forward and backward with respect to the split mold. The split mold includes a bottom mold reception portion that is communicated with a bottom portion side of the mold space and receives the bottom mold. When the bottom mold is closed with respect to the split mold, a space between a surface of the bottom mold reception portion facing the bottom mold surface and the bottom mold surface is a space that defines a shape of a structure protruding in a radial direction of the container.

A system for forming a container includes an injection station configured to inject a liquid material into a mold to form a preform. The system also includes a forming station including an apparatus for forming a container. The apparatus includes a blow mold configured to receive the preform and inject air into the preform to form the container. The blow mold includes an inner mold surface. The apparatus also includes at least one stretching rod configured to contact the preform in the blow mold and stretch the preform. The apparatus further includes electric heating elements coupled to the blow mold and positioned adjacent the inner mold surface to heat the inner mold surface. The system further includes a removal station configured to release the container from the system.

To provide a resin container and a method for manufacturing the same with which it is possible to generate more effervescence than hitherto. This resin container is provided with: a resin container main body inside which is formed an accommodating space that is hermetically sealed using a cap; and a textured region which is formed on an inner surface of the container main body and is formed from a rough surface.

The invention relates to a mold for a container that includes a mold base. The mold base includes a peripheral face, a central dome, and a central well formed in the dome and extending along a frustoconical sidewall from a top edge of the dome having a top diameter, to a bottom having a bottom diameter smaller than the top diameter. The mold also includes a stretching rod that ends with a hemispherical distal end having a radius, the value of which is between that of the bottom radius and that of the top radius of the central well. When the rod is in the bottom position, it is separated from the sidewall of the central well by a distance smaller than the distance that separates it from the bottom of the well.

An apparatus for forming plastic preforms into plastic containers, includes at least one forming station which forms the plastic preforms into the plastic containers by applying a flowable medium to the plastic preforms, wherein the forming station comprises a blow mold (26), and a rod-like body which is insertable into the plastic preforms via a mouth of the plastic preforms, and a moving device which is configured for moving the rod-like body in the longitudinal direction of the plastic performs. The rod-like body has a channel for guiding the flowable medium, and the forming station has a valve device controlling the supply of the flowable medium into the channel. The said valve device is arranged on the moving device and/or a ratio between an inner diameter of the rod-like body and an outer diameter of said rod-like body is, at least in sections, smaller than or equal to 0.5.

A stretch rod for blowing a preform into a container is disclosed. The stretch rod includes a hollow, cylindrical body that is made of metal, a first plurality of apertures, and a second plurality of apertures. The body of the stretch rod includes a handle pocket zone with the first plurality of apertures and an optional zone disposed on the stretch rod below the handle pocket zone, the optional zone including the second plurality of apertures. Compressed air is blown through the first plurality of apertures and the second plurality of apertures of the stretch rod to form the blown container.

A stretch rod for blowing a preform into a container is disclosed. The stretch rod includes a hollow, cylindrical body that is made of metal, a first plurality of apertures, and a second plurality of apertures. The body of the stretch rod includes a handle pocket zone with the first plurality of apertures and an optional zone disposed on the stretch rod below the handle pocket zone, the optional zone including the second plurality of apertures. Compressed air is blown through the first plurality of apertures and the second plurality of apertures of the stretch rod to form the blown container.

A filling cylinder assembly for a container forming and filling system that simultaneously forms and fills a container from a preform with fluid. The filling cylinder assembly includes a cylinder having an inner wall defining a cavity. A piston head is at a distal end of a piston rod. An insert is configured to be seated in the cavity to provide the cavity with a reduced volume such that with the insert seated within the cavity the cavity has a first volume, and without the insert seated in the cavity the cavity has a second volume that is greater than the first volume.

A method of manufacturing a pressure vessel that includes heating a preform formed of a thermoplastic polymer, inserting a blow pin assembly that includes a bung portion and a plunger portion into an opening of the heated preform, clamping the heated preform between the bung portion and sections of a blow mold, extending the plunger portion into an interior of the heated preform to stretch the heated preform in the blow mold, and blowing air into the stretched preform under pressure to form the pressure vessel such that: (a) the pressure vessel includes a tank having a neck portion, a cylindrical body portion having a diameter of at least about 200 mm, and a bottom portion, (b) at least the thermoplastic polymer in the cylindrical body portion is biaxially oriented, and (c) threads are formed in the neck portion. Also a pressure vessel formed in accordance with the method.