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 heat-resistant and biaxially stretched blow-molded plastic container includes a base movable to accommodate vacuum forces generated within the container and thereby decrease the volume of the container. Embodiments of a container include a push-up portion, and first and second parting lines that are separated from one another by a gap and that extend on opposite sides of the push-up portion. Embodiments of such a container exhibit one or more of the following: (a) a distance between each parting line and the center of the base is not more than 20 mm; (b) a distance between the two parting lines is not more than 40 mm; and/or (c) a distance between the two parting lines is less than 50% of the transverse dimension of the base measured between the two outermost points of the parting lines. Methods for blow molding heat-resistant plastic containers are also disclosed.

A container defining a longitudinal axis and a transverse direction that is transverse with respect to the longitudinal axis. The container includes a finish and a sidewall portion extending from the finish. A plurality of ribs are defined by the sidewall. A base portion extends from the sidewall portion and encloses the sidewall portion to form a volume therein for retaining a commodity. The base portion has a contact surface for supporting the container. A plurality of straps extend radially along the base portion away from the longitudinal axis in the transverse direction, each one of the straps defines a strap surface that is closer to the finish than the contact surface. The plurality of ribs and the base portion are configured to place the container in a state of hydraulic charge-up when top load is applied to the container after the container is filled.

A mold system for forming a container having a longitudinal axis and a transverse direction that extends transverse to the longitudinal axis. The mold system includes a sidewall system for molding the sidewall portion of the container. The mold system also includes a base system for molding the base portion of the container. The base system is operable for forming the entire base portion of the container including a central pushup portion, a contact surface for supporting the container, and at least one strap extending along the base portion in the transverse direction. The strap defines a strap surface that is spaced offset in a direction parallel to the longitudinal axis from the contact surface. The strap surface extends in the transverse direction to be adjacent the sidewall portion such that the at least one strap surface is visible from a side of the container.

Disclosed is a Container (1) made of a plastic material, provided with a base (7) including a standing ring (8) forming a support flange (9) and a diaphragm (11) extending from the standing ring (8) to a central portion (10), the diaphragm (11) being capable of standing in an outwardly-inclined position. The diaphragm (11) connects to the standing ring (8) at an outer junction (12) forming an outer articulation of the diaphragm (11). The diaphragm (11) connects to the central portion (10) at an inner junction (13) forming an inner articulation of the diaphragm (11). The diaphragm (11) is invertible with respect to the standing ring (8) from the outwardly-inclined position to an inwardly-inclined position. In the inwardly-inclined position, at least an inner portion (16) of the diaphragm (11) adjacent to the inner junction (13) is curved in radial section, with a concavity turned outwards.

A synthetic resin bottle, wherein a bottom includes: an annular-shaped peripheral portion; a protruding ridge disposed radially inward from the peripheral portion and configured to serve as a ground contacting portion of the bottle by protruding downward from the peripheral portion and configured, when deformed under reduced pressure, to make the peripheral portion serve as the ground contacting portion by displaced toward an inside of the bottle (upward); and a depressed recess located radially inward from the protruding ridge and depressed toward the inside of the bottle. The peripheral portion has an outer diameter dimension less than that of a lower end portion of the trunk, or a plurality of radiately extending groove portions is arranged side by side at an equal interval in the circumferential direction in the peripheral portion.

A bottle is a bottle formed of synthetic resin materials in a cylindrical shape with a bottom. A bottom wall portion in a bottom portion thereof includes a grounding portion positioned at an outer circumferential edge thereof, a rising circumferential wall portion connected to the grounding portion from an inside of a bottle radial direction and extending upward, a movable wall portion protruding from an upper end part of the rising circumferential wall portion toward the inside of the bottle radial direction, and a recessed circumferential wall portion extending upward from an inner end part in the bottle radial direction of the movable wall portion. The movable wall portion is arranged to be movable upward together with the recessed circumferential wall portion, around a connected portion with the rising circumferential wall portion. A plurality of ribs are arranged in the movable wall portion radially around a bottle axis.

Container made of a plastic material, provided with a base including a standing ring forming a support flange and a diaphragm extending from the standing ring to a central portion, the diaphragm being capable of standing in an outwardly-inclined position, the diaphragm connecting to the standing ring at an outer junction forming an outer articulation of the diaphragm with respect to the standing ring; the diaphragm connecting to the central portion at an inner junction forming an inner articulation of the diaphragm with respect to the central portion; the diaphragm being invertible with respect to the standing ring to an inwardly-inclined position; the central portion having a thickness greater than the diaphragm, the central portion having an annular section of greater thickness adjacent to the inner junction, the central portion having a central recess thinner than the annular section and protruding upwardly from an inner edge of the annular section.

A hot-fill PET container or bottle (10) filling with a liquid at an elevated temperature has a side wall (9) extending to a lower portion including a pressure panel (11) and a base (21) in its unfolded or pre-fill position. The panel (11) is transversely oriented and has a decoupling or hinge structure (13), an initiator portion (1) and control portion (5) of a steeply angled inverting conical section between 30 and 45 degrees. The control portion enables the inversion of the panel (11) into the container (10) to compensate for vacuum or reduced pressure induced within the container as the liquid cools down. The base (2) can also have a plurality of reinforcing ribs (3).

A container defining a longitudinal axis and a transverse direction that is transverse with respect to the longitudinal axis is disclosed. The container includes a finish, a sidewall portion extending from the finish, and a base portion extending from the sidewall portion and enclosing the sidewall portion to form a volume therein for retaining a commodity. The base portion has a contact surface for supporting the container. The container also includes at least one strap extending along the base portion in the transverse direction. The strap defines a strap surface, and the strap surface is spaced offset in a direction parallel to the longitudinal axis from the contact surface. The strap surface extends in the transverse direction to be adjacent the sidewall portion such that the at least one strap surface is visible from a side of the container.