Base includes an outer support wall, a support surface extending inwardly from the outer support wall and defining a reference plane, an inner support wall extending upwardly from the support surface, a first radiused portion extending radially inward from the inner support wall and concave relative
Base includes an outer support wall, a support surface extending inwardly from the outer support wall and defining a reference plane, an inner support wall extending upwardly from the support surface, a first radiused portion extending radially inward from the inner support wall and concave relative to the reference plane, a second radiused portion extending radially inward from the first radiused portion and convex relative to the reference plane, an intermediate surface extending radially inward from the second radiused portion, a third radiused portion extending radially inward from the intermediate surface and convex relative to the reference plane, and a central portion disposed proximate the third radiused portion.
대표청구항▼
1. A base for a container, the base as formed comprising: a support surface defining a reference plane;an inner support wall extending upwardly from the support surface;a first radiused portion extending radially inward toward a central longitudinal axis of the base from the inner support wall and c
1. A base for a container, the base as formed comprising: a support surface defining a reference plane;an inner support wall extending upwardly from the support surface;a first radiused portion extending radially inward toward a central longitudinal axis of the base from the inner support wall and concave relative to the reference plane;a second radiused portion extending radially inward toward the central longitudinal axis from the first radiused portion and convex relative to the reference plane;an intermediate surface extending radially inward toward the central longitudinal axis from the second radiused portion and substantially straight in cross section;a third radiused portion extending radially inward toward the central longitudinal axis from the intermediate surface and convex relative to the reference plane;a transition portion extending radially inward toward the central longitudinal axis from the third radiused portion and being concave relative to the reference plane;a central portion disposed proximate the transition portion; anda plurality of ribs extending from the central portion toward the support surface and spaced circumferentially apart to define a plurality of base segments therebetween in plan view, wherein each of the base segments is configured to deform independently with respect to an adjacent base segment. 2. The base of claim 1, wherein the intermediate surface is substantially parallel to the reference plane. 3. The base of claim 1, wherein the central portion includes an inner core, the inner core comprising a sidewall. 4. The base of claim 3, wherein the sidewall of the inner core extends from the transition portion. 5. The base of claim 3, wherein the inner core further comprises a top surface extending from the sidewall, the top surface having a convex portion relative to the reference plane. 6. The base of claim 1, further comprising a fourth radiused portion disposed between the support surface and the inner support wall. 7. The base of claim 6, wherein a diaphragm is defined inwardly from the fourth radiused portion. 8. The base of claim 6, further comprising a fifth radiused portion disposed between the support surface and an outer support wall. 9. The base of claim 8, wherein a diaphragm is defined inwardly toward the central longitudinal axis from the fifth radiused portion. 10. The base of claim 1, wherein the support surface has a width of between about 4% to about 10% of the width of the maximum cross-dimension of the base. 11. The base of claim 1, wherein at least an upper section of the inner support wall extends inwardly at an angle of between about 15 degrees to about 85 degrees relative to the reference plane. 12. The base of claim 1, wherein the plurality of ribs are configured to be more rigid than the plurality of base segments. 13. A container as formed comprising: a sidewall; anda base comprising:a support surface defining a reference plane;an inner support wall extending upwardly from the support surface;a first radiused portion extending radially inward toward a central longitudinal axis of the base from the inner support wall and concave relative to the reference plane;a second radiused portion extending radially inward toward the central longitudinal axis from the first radiused portion and convex relative to the reference plane;an intermediate surface extending radially inward toward the central longitudinal axis from the second radiused portion and substantially straight in cross section;a third radiused portion extending radially inward toward the central longitudinal axis from the intermediate surface and convex relative to the reference plane;a transition portion extending radially inward toward the central longitudinal axis from the third radiused portion and being concave relative to the reference plane;a central portion disposed proximate the transition portion; anda plurality of ribs extending from the central portion toward the support surface and spaced circumferentially apart to define a plurality of base segments therebetween in plan view, wherein each of the base segments is configured to deform independently with respect to an adjacent base segment in response to internal or external pressure change. 14. The container of claim 13, wherein the intermediate surface is substantially parallel to the reference plane. 15. The container of claim 13, wherein the central portion includes an inner core, the inner core comprising a sidewall. 16. The container of claim 15, wherein the sidewall of the inner core extends from the transition portion. 17. The container of claim 15, wherein the inner core further comprises a top surface extending from the sidewall, the top surface having a convex portion relative to the reference plane. 18. The container of claim 13, wherein the base further comprises a fourth radiused portion disposed between the support surface and the inner support wall. 19. The container of claim 18, wherein a diaphragm is defined inwardly from the fourth radiused portion of the base. 20. The container of claim 18, wherein the base further comprises a fifth radiused portion disposed between the support surface and an outer support wall. 21. The container of claim 20, wherein a diaphragm is defined inwardly toward the central longitudinal axis from the fifth radiused portion of the base. 22. The container of claim 13, wherein the support surface has a width of between about 4% to about 10% of the width of the maximum cross-dimension of the base. 23. The container of claim 13, wherein at least an upper section of the inner support wall extends inwardly at an angle of between about 15 degrees to about 85 degrees relative to the reference plane. 24. The container of claim 13, wherein the plurality of ribs are configured to be more rigid than the plurality of base segments.
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