US 12,297,027 B2
Base of a plastic container
Matt Dauzvardis, Manhattan, IL (US); and Andrea Delgado Hernandez, Manchester, NH (US)
Assigned to Envases USA, Inc., Amherst, NH (US)
Filed by Envases USA, Inc., Amherst, NH (US)
Filed on Feb. 28, 2024, as Appl. No. 18/590,448.
Application 18/590,448 is a division of application No. 17/833,339, filed on Jun. 6, 2022, granted, now 11,970,324.
Prior Publication US 2024/0199298 A1, Jun. 20, 2024
Int. Cl. B65D 79/00 (2006.01); B65D 1/02 (2006.01)
CPC B65D 79/0081 (2020.05) [B65D 1/0276 (2013.01); B65D 79/0084 (2020.05); B65D 2501/0018 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A plastic container having a base portion adapted for vacuum absorption, the container comprising a base and a container body extending up from the base along a central axis to a finish portion defining a mouth, the base including
an outside wall;
a chime connecting the outside wall to an annular contact ring;
an inside wall extending upward from the annular contact ring to a circular hinge; and
a diaphragm connected to the circular hinge, the diaphragm movable between a first position and a second position in response to pressure change within the plastic container, the diaphragm including a central region and a flexible wall around the central region, wherein the flexible wall includes a first portion having a curved cross-sectional profile between the central region and the hinge, a second portion having a linear cross-sectional profile between the central region and the hinge, and transition portions extending radially between the central region and the hinge and positioned circumferentially between the first portion and the second portion.