Repositionable Base Structure For A Container

摘要

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.

主权项

1. A plastic bottle comprising:
a neck portion; a body portion; and a base portion forming a bearing surface for the plastic bottle, the base portion comprising:
a bottom end having a hinge element;a first wall portion extending a first direction away from the hinge element;a second wall portion extending a second direction away from the hinge element, the second wall portion including a plurality of radial creases; andan inner section circumscribed by the second wall portion, the second wall portion and the inner section being adapted to move about the hinge element from a first position to a second position with substantially no movement of the first wall portion, the creases adapted to flex during movement of the second wall portion, wherein in the first position, no portion of the second wall portion and the inner section extend below the bearing surface.