Patent ID: 11970324
Assignee: ENVASES USA, INC.
Field: Handling (Mechanical engineering)
Classification: CPC B | IPC B

Claim 0:
1. A plastic container 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 inner wall extending upward from the contact ring to a hinge; and
a diaphragm connected to the hinge, the diaphragm movable between a first position and a second position in response to pressure change within the plastic container, the diaphragm having a central region connected to an annular flexible wall around the central region, the annular flexible wall in the first position having a profile as viewed in cross section that curves concavely inward and downward, with respect to an outside of the container, from the hinge to the central region, wherein at least a radially outer portion of the central region protrudes downward;
wherein an entirety of the central region is vertically below the annular flexible wall when the diaphragm is in the first position.