A pressure vessel having an inner container made of thermoplastic plastic, and at least one metal part embedded in the inner container. A collar that includes the metal part is formed on the inner container, the collar being configured such that it is gas-tight with respect to the metal part.

A bottle for dispensing fuel additives into a capless filler system, the bottle configured with an elongated smooth neck designed for insertion into a capless filler opening to actuate and displace one or more flapper seals when emptying the fuel additives into the capless filler. The bottle is sealed with a cap with a first set of screw threads that engages the neck at a top portion with a second set of screw threads on an interior surface of the top portion of the neck. The length of the smooth elongated neck is at least half the length of a wider storage portion of the bottle. The cap can be a child proof cap. The bottle can be made of plastic that is clear or opaque.

The invention provides a synthetic resin container with a plurality of handgrips on its top face and a manufacturing method for such a container. The plurality of handgrips, as well as an opening, are molded in advance as insertion components. After heating the fusion portions of the insertion components, the insertion components are disposed parallel to the direction in which a parison is to be placed. Thereafter, a parison is placed into dies, and the dies are clamped. Air is blown into the parison through the opening to fuse the parison and the insertion components.

A bottle for dispensing fluids into a capless filler system, the bottle configured with an elongated smooth neck designed for insertion into a capless filler opening to actuate and displace one or more flapper seals when emptying the fluid into the capless filler. The bottle is sealed with a cap with a first set of screw threads that engages the neck at a top portion with a second set of screw threads on an interior surface of the top portion of the neck. The cap can be a child proof cap. The bottle can be made of plastic that is clear or opaque.

The inventive technology encompasses new and novel methods for manufacturing helium-free balloons using improved injection molding systems and techniques. The invention includes new and novel preform, as well as parison based methods and methods of manufacturing integrated helium-free balloons compatible with external support components.

The invention provides a synthetic resin container with a plurality of handgrips on its top face and a manufacturing method for such a container. The plurality of handgrips, as well as a metal cap opening, are molded in advance as insertion components. After heating the fusion portions of the insertion components, the insertion components are disposed parallel to the direction in which a parison is to be placed. Thereafter, a parison is placed into dies, and the dies are clamped. Air is blown into the parison through the metal cap opening to fuse the parison and the insertion components.