A method and molding system for hydraulic blow molding of a container from a preform. The method precharges the molding medium within a fill head unit to a precharge pressure. During the injecting of the molding medium into the preform, the method further increases the pressure of the molding medium to a pressure greater than the precharge pressure.

Systems and methods for making a reduced material container are provided that hold a preform adjacent to an open end of the preform, stretch the preform, close a mold about the stretched preform to form a truncated preform, and introduce a pressurized fluid into the truncated preform to expand the truncated preform and form the reduced material container. A stretch rod can be inserted into the preform to mechanically stretching the preform. The mold accepts the preform at a first end thereof, has an open state and a closed state, and the closed state forms a cavity defining an internal surface having a second end located remotely from the first end. A first length is defined by a distance between the first end and the second end, the stretch rod mechanically stretching the preform to a second length, the second length being greater than the first length.

A liquid blow molding device and a liquid blow molding method are configured to supply pressurized liquid to a preform mounted to a mold to mold the preform into a shape along a cavity of the mold, and includes a blow nozzle fitted into a mouth portion of the preform, a plunger pump configured to supply pressurized liquid to the preform through the blow nozzle and a controller configured to control operation of the plunger pump. The controller controls operation of the plunger pump by position control in which a plunger of the plunger pump is moved from an original position to a predetermined final position with a predetermined operating force.

A synthetic resin container having a bottle shape including a tube-shaped mouth, a tube-shaped trunk having one end closed by a bottom, and a shoulder through which another end of the trunk is connected to the mouth. The shoulder is inclined at an angle greater than 120 with respect to an axis of the mouth, and the shoulder has a crystal orientation in a machine direction of less than 1.

A method of hydroforming a container from a preform. During the method, an injection nozzle is moved from a retracted position, where the nozzle is spaced away from the neck of the preform, to an intermediate position, where contact is established between a first contact surface of the nozzle and the finish of the preform. The nozzle is then moved from the intermediate position to an injection position, where a second contact surface of the nozzle abuts an abutment surface and the neck is axially compressed. With the nozzle in the injection position, a liquid is injected from the nozzle into the preform causing the preform to expand and form the container.

An apparatus for fabricating containers. The apparatus including a plurality of mold segments, an injection cylinder, a closure cylinder and a motor cylinder. The injection cylinder defining a mold cavity substantially in the form of a container and accommodating a substantially tubular preform having a preform cavity in communication with an open end. The injection head establishes fluid communication with the preform and the injection cylinder is in fluid communication with the injection head and configured to inject a volume of liquid into the preform The closure cylinder is configured to exert a force on at least one of the mold segments to maintain them in a closed disposition. The motor cylinder is configured to drive the injection cylinder and being itself concurrently driven with the closure cylinder by a single pressure source.

A method and molding system for hydraulic blow molding of a container from a preform. The method precharges the molding medium within a fill head unit to a precharge pressure. During the injecting of the molding medium into the preform, the method further increases the pressure of the molding medium to a pressure greater than the precharge pressure.

A blow-molded container including a finish and a base. The finish defines an opening at a first end of the container that provides access to an internal volume. The base includes a diaphragm and a standing surface. The diaphragm extends radially outward from a central push-up portion. The standing surface of the container is at a second end of the container. In response to an internal vacuum caused by hot-filling and closing the container, the diaphragm is configured to move passively from an as-blown first configuration to a second configuration in which the diaphragm is closer to the first end of the container as compared to the as-blown first configuration. The diaphragm is configured to move from the second configuration to an activated third configuration in which the diaphragm is closer to the first end of the container in response to the diaphragm being externally actuated by a tool.

A method and molding system for hydraulic blow molding of a container from a preform. The method precharges the molding medium within a fill head unit to a precharge pressure. During the injecting of the molding medium into the preform, the method further increases the pressure of the molding medium to a pressure greater than the precharge pressure.

Systems and methods for making a reduced material container are provided that hold a preform adjacent to an open end of the preform, stretch the preform, close a mold about the stretched preform to form a truncated preform, and introduce a pressurized fluid into the truncated preform to expand the truncated preform and form the reduced material container. A stretch rod can be inserted into the preform to mechanically stretching the preform. The mold accepts the preform at a first end thereof, has an open state and a closed state, and the closed state forms a cavity defining an internal surface having a second end located remotely from the first end. A first length is defined by a distance between the first end and the second end, the stretch rod mechanically stretching the preform to a second length, the second length being greater than the first length.