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

Claim 9:
10. 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 reversibly movable among a continuous range of positions between a first position and a second position in response to pressure change within the plastic container, the diaphragm including an annular flexible wall connected to a central region, wherein the flexible wall curves concavely inward and downward, with respect to an outside of the container, from the hinge to the central region;
wherein the central region is vertically below the hinge when the diaphragm is in the first position and when the diaphragm is in the second position.