A manufacturing method of double walled container comprises preparing a parison having a rigid outer layer and a flexible inner layer, enclosing the parison within a mold including split mold halves, thereby forming a molded parison including a pre-blow cylindrical section, a pre-blow conical bottom section, a pre-blow bottom projection, and a lower parison excessive burr, blowing gas into an inside of the molded parison, thereby forming a blown parison including a cylindrical section and a bottom section, the bottom section including a bottom projection, and removing the lower parison excessive burr from the blown parison, wherein the flexible inner layer is fixed to the rigid outer layer in the bottom projection.

A plastic container comprises an upper portion including a finish defining an opening into the container, a lower portion including a base defining a standing surface, a sidewall extending between the upper portion and the lower portion, the sidewall defining a longitudinal axis, and at least one substantially transversely-oriented pressure panel located in the lower portion. The pressure panel is movable between an outwardly-inclined position and an inwardly-inclined position to compensate for a change of pressure inside the container. The standing surface defines a standing plane, and the entire pressure panel is located between the standing plane and the upper portion of the container when the pressure panel is in the outwardly-inclined position.

A method for the distribution and dispensing of beverages utilizes a one-way system including a disposable and freestanding container. The container is blow-molded in one piece from a preform of plastics. The system also includes a tube to be inserted in the container and a closure cap. The container can be filled, distributed to an end user and connected to standard beverage dispensing structure. After use, the empty container is collapsed and discarded.

Preform assembly for blow moulding a container, comprising at least a first and a second perform, wherein the first perform is positioned inside the second perform before blow moulding the performs into the container, wherein each perform has a body forming portion having a wall thickness of less than about 8 millimetres, preferably less than about 6 mm.

A blow-molded container including a finish and a base portion. The finish defines an opening at a first end of the container that provides access to an internal volume defined by the container. The base portion is at a second end of the container opposite to the first end. The base portion includes a fold proximate to a sidewall of the container.

A container including a finish defining an opening at a first end of the container that provides access to an internal volume defined by the container. A base portion of the container includes a diaphragm that is concave relative to an exterior of the container. The diaphragm extends from a standing surface of the container to a center push-up portion of the base portion. The standing surface is at a second end of the container opposite to the first end. The diagram is configured to move from an as-blown first configuration to a second configuration in which the diaphragm is closer to the first end as compared to the first configuration in order to reduce residual vacuum within the container. The diaphragm is generally hemispherical in cross-section when in the second configuration.

Systems and methods for vacuum compensation in hot-filled and cooled containers. Each container reduces, via one or more vacuum panels, a first portion of a vacuum created in the container. Each container also has a repositionable portion to reduce a second portion of the vacuum. During hot-filling, no portion of the repositionable portion extends below a standing or bearing surface of the container.

A mold for blow molding a container from a preform, the container including a wall portion and a base including a high standing ring and a central outwardly-inclined invertible diaphragm, the mold including sidewalls forming a counter print of the wall portion of the container (1) and a mold base (36) having an upper surface (37) defining a counter print of the container base, wherein the upper surface (37) includes: an annular peripheral face (43) corresponding to an annular support flange of the container base; a frusto-conical outer face (44) corresponding to an inner portion (11) of the high standing ring, the outer face (44) protruding upwardly with a draft angle (A2) from an inner edge of the peripheral annular face (43) up to a sharp apex (45), and a frusto-conical downwardly inclined inner face (46) corresponding to the invertible diaphragm.

A resin made container includes a spout portion to/from which a cap can be attached/detached, a shoulder portion continuous with the spout portion, a body portion continuous with shoulder portion and a bottom portion continuous with body portion and disposed at a lowermost portion of the bottle. Bottom portion includes a bottom face which comes into contact with a disposing surface and a sloped portion extending with a slope from the bottom face to the body portion. At least a portion of a vertical cross sectional shape of the sloped portion is a linear portion or a curved portion which protrudes to the inner side of the container. An angle formed between the linear portion of sloped portion and disposing surface or an angle formed between a straight line interconnecting an upper end and a lower end of the curved portion and disposing surface ranges from 15 to 70 degrees.

A delamination container includes a bottle-shaped outer layer body including a mouth, a barrel and a bottom and an inner layer body releasably laminated on an inner surface of the outer layer body, the mouth being provided with an ambient air introduction hole passing through the outer layer body, in which a lower portion of the mouth is provided with a neck ring which has a notch circumferentially outside of at least a portion immediately below the ambient air introduction hole; and the notch is provided within a range of 60° on both sides of a radial reference line passing through an axial center of the ambient air introduction hole and radially extending, in a planar view of the container.