Patent ID: 8833579
Filing Date: 2014-09-16
Classification: B65D

Abstract:
1. A plastic container filled with a liquid at an elevated temperature, sealed with a closure, and cooled thereby establishing a vacuum within said container, said container comprising: an upper portion having a mouth defining an opening into said container and a finish for attaching the closure, a neck extending from said upper portion, a body portion extending from said neck to a base, said base closing off an end of said container; said upper portion, said neck, said body portion and said base cooperating to define a receptacle chamber within said container into which the liquid can be filled at the elevated temperature; said base adapted for vacuum absorption and including a chime extending from said body portion to a contact ring which defines a surface upon which said container is supported, said base further including 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 said container, and an inversion ring circumscribing said pushup; said truncated cone having an overall general diameter that is at most 30% of an overall general diameter of said base and a top surface generally parallel to a support surface; said pushup and said inversion ring being moveable to accommodate vacuum related forces generated within said container; said inversion ring defining an inwardly domed shaped portion having a surface that is at least in part generally sloped toward said longitudinal axis of said container at an angle in a range of approximately 7° to approximately 23° relative to said support surface; said inversion ring having hinge means formed therein and a generally S shaped geometry in cross section after removal of the liquid from said container; wherein said hinge means is arranged in a plurality of lines that radiate from the longitudinal axis, and generally surround and circumscribe said central pushup.