Abstract: A plastic container has a base adapted for vacuum pressure absorption. The base portion includes a chime extending from a body portion to a contact ring which defines a surface upon which the container is supported. The base further includes a central portion defined in at least part by a pushup having a generally truncated cone shape in cross section located on a longitudinal axis of the container, and an inversion ring having a generally S shaped geometry in cross section and hinge means formed therein, and circumscribing the pushup. The truncated cone has an overall general diameter that is at most 30% of an overall general diameter of the base and a top surface generally parallel to a support surface.

Abstract: A heat set container having a shoulder portion and a sidewall portion extending from the shoulder portion to a base. The base closes off an end of the container. The shoulder portion, the sidewall portion, and the base cooperate to define a receptacle chamber within the container into which product can be filled. The sidewall portion defines a major container diameter of the container. The sidewall portion includes an upper vacuum absorbing region joined to a lower vacuum absorbing region at a reduced waist section. The reduced waist section forms a minor container diameter which is less than the major container diameter. In some embodiments, such configuration forms an hourglass, heat-set container, wherein the upper vacuum absorbing region and the lower vacuum absorbing region are collectively shaped to provide flexible absorption of an internal vacuum within the receptacle chamber.

Abstract: A plastic container has a base adapted for vacuum pressure absorption. The base portion includes a chime extending from a body portion to a contact ring which defines a surface upon which the container is supported. The base further includes a central portion defined in at least part by a pushup having a generally truncated cone shape in cross section located on a longitudinal axis of the container, and an inversion ring having a generally S shaped geometry in cross section and hinge means formed therein, and circumscribing the pushup. The truncated cone has an overall general diameter that is at most 30% of an overall general diameter of the base and a top surface generally parallel to a support surface.

Abstract: A plastic container has a base adapted for vacuum pressure absorption. The base portion includes a chime extending from a body portion to a contact ring which defines a surface upon which the container is supported. The base further includes a central portion defined in at least part by a pushup having a generally truncated cone shape in cross section located on a longitudinal axis of the container, and an inversion ring having a generally S shaped geometry in cross section and hinge means formed therein, and circumscribing the pushup. The truncated cone has an overall general diameter that is at most 30% of an overall general diameter of the base and a top surface generally parallel to a support surface.

Abstract: A heat set container having a shoulder portion and a sidewall portion extending from the shoulder portion to a base. The base closes off an end of the container. The shoulder portion, the sidewall portion, and the base cooperate to define a receptacle chamber within the container into which product can be filled. The sidewall portion defines a major container diameter of the container. The sidewall portion includes an upper vacuum absorbing region joined to a lower vacuum absorbing region at a reduced waist section. The reduced waist section forms a minor container diameter which is less than the major container diameter. In some embodiments, such configuration forms an hourglass, heat-set container, wherein the upper vacuum absorbing region and the lower vacuum absorbing region are collectively shaped to provide flexible absorption of an internal vacuum within the receptacle chamber.

Abstract: A plastic container having a base portion adapted for vacuum pressure absorption. The base portion including a contact ring that supports the container, an upstanding wall, and a central portion. The upstanding wall being adjacent to and generally circumscribing the contact ring. The central portion defined in at least part by a pushup and an inversion ring that generally circumscribes the pushup. The pushup and the inversion ring being moveable to accommodate vacuum related forces generated within the container.

Abstract: A plastic container having a base portion adapted for vacuum pressure absorption. The base portion including a contact ring that supports the container, an upstanding wall, and a central portion. The upstanding wall being adjacent to and generally circumscribing the contact ring. The central portion defined in at least part by a pushup and an inversion ring that generally circumscribes the pushup. The pushup having a generally truncated cone shape in cross section and the inversion ring having a generally S shaped geometry in cross section. The pushup and the inversion ring being moveable to accommodate vacuum related forces generated within the container.