A liquid blow-molding apparatus in which a liquid circulates between a feed path formed in a support block, when a valve mechanism is in a closed state, and a pressurized liquid feed unit, and pressurized liquid is fed from the feed path through a blow nozzle into a preform when the valve mechanism is in an open state. The feed path has a shape including a flow path body, a dome chamber that is formed in a domed shape and that is continuous with an upper end of the flow path body, a first port that has the same upper end as the dome chamber and which extends horizontally from the dome chamber, and a second port connected to the flow path body.

A liquid blow-molding apparatus in which a liquid circulates between a feed path formed in a support block, when a valve mechanism is in a closed state, and a pressurized liquid feed unit, and pressurized liquid is fed from the feed path through a blow nozzle into a preform when the valve mechanism is in an open state. The feed path has a shape including a flow path body, a dome chamber that is formed in a domed shape and that is continuous with an upper end of the flow path body, a first port that has the same upper end as the dome chamber and which extends horizontally from the dome chamber, and a second port connected to the flow path body.

The invention relates to a method for producing hollow bodies from thermoplastic material comprising the shaping of at least one tubular preform or at least two two-dimensional, web-like preforms of plasticated thermoplastic material into a substantially closed hollow body, for example in the form of a fuel tank for motor vehicles.

The invention relates to a method for producing hollow bodies from thermoplastic material comprising the shaping of at least one tubular preform or at least two two-dimensional, web-like preforms of plasticated thermoplastic material into a substantially closed hollow body, for example in the form of a fuel tank for motor vehicles.

The present invention relates to molded foam having no hollow space caused in a plate-shaped portion. The molded foam comprises a tube body and a plate-shaped portion joined to the outer side of the tube body. The expansion ratio of the molded foam is lower than two, and a value of a thickness B/a thickness A as a relationship between the thickness A of the tube body at the periphery of a point joined to the plate-shaped portion and the thickness B of the plate-shaped portion is less than 2.82.

A blow molding device includes a blow molding mold to which a bottomed tubular preform is fitted, a blow nozzle that is fitted to a mouth tubular portion of the preform fitted to the mold, and a pressurized liquid supply unit configured to supply a pressurized liquid to the blow nozzle. The preform is to be molded into a shape conforming to a cavity of the mold by filling the liquid into the preform through the blow nozzle. The blow molding device further includes: a deaeration mechanism that is connected to the blow nozzle. The liquid is filled into the preform through the blow nozzle after air that is present within the preform fitted to the mold is sucked out by the deaeration mechanism.

A blow molding device includes a blow molding mold to which a bottomed tubular preform is fitted, a blow nozzle that is fitted to a mouth tubular portion of the preform fitted to the mold, and a pressurized liquid supply unit configured to supply a pressurized liquid to the blow nozzle. The preform is to be molded into a shape conforming to a cavity of the mold by filling the liquid into the preform through the blow nozzle. The blow molding device further includes: a deaeration mechanism that is connected to the blow nozzle. The liquid is filled into the preform through the blow nozzle after air that is present within the preform fitted to the mold is sucked out by the deaeration mechanism.

Methods and apparatus for molding a vessel, such as a bottle, with a high quality sealing surface are described herein. In one embodiment, a stepped blow pin can be used to form the sealing surface of a bottle. A stepped blow pin can include a body with a distal end and a proximal end. The blow pin can include a first region that includes a first diameter and a first engagement surface. The blow pin can further include a second region that includes a second diameter. The second region can be positioned between the first region and the distal end. A transition section can be positioned between the first region and second region. The blow pin can also include a top surface position at the proximal end, and a bottom surface positioned at the distal end.

Methods and apparatus for molding a vessel, such as a bottle, with a high quality sealing surface are described herein. In one embodiment, a stepped blow pin can be used to form the sealing surface of a bottle. A stepped blow pin can include a body with a distal end and a proximal end. The blow pin can include a first region that includes a first diameter and a first engagement surface. The blow pin can further include a second region that includes a second diameter. The second region can be positioned between the first region and the distal end. A transition section can be positioned between the first region and second region. The blow pin can also include a top surface position at the proximal end, and a bottom surface positioned at the distal end.

Methods and apparatus for molding a vessel, such as a bottle, with a high quality sealing surface are described herein. In one embodiment, a stepped blow pin can be used to form the sealing surface of a bottle. A stepped blow pin can include a body with a distal end and a proximal end. The blow pin can include a first region that includes a first diameter and a first engagement surface. The blow pin can further include a second region that includes a second diameter. The second region can be positioned between the first region and the distal end. A transition section can be positioned between the first region and second region. The blow pin can also include a top surface position at the proximal end, and a bottom surface positioned at the distal end.