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 and substantially parallel to the reference plane, 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 comprising: an outer support wall having a central longitudinal axis;a support surface extending inwardly toward the central longitudinal axis from the outer support wall and defining a reference plane;an inner support wall extending upwardly from the support surf
1. A base for a container, the base comprising: an outer support wall having a central longitudinal axis;a support surface extending inwardly toward the central longitudinal axis 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 toward the central longitudinal axis 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 parallel to the reference plane;a third radiused portion extending radially inward toward the central longitudinal axis from the intermediate surface and convex relative to the reference plane;a central portion disposed proximate the third radiused portion, the central portion including an inner core having a frustoconical sidewall; anda transition portion having an arcuate cross-section between the third radiused portion and the inner core, the frustoconical sidewall extending at an angle from the transition portion. 2. The base of claim 1, further comprising a fourth radiused portion disposed between the support surface and the inner support wall. 3. The base of claim 2, wherein a diaphragm is defined inwardly from the fourth radiused portion. 4. The base of claim 3, wherein the diaphragm comprises at least about 90% of the surface area of the base. 5. The base of claim 2, further comprising a fifth radiused portion disposed between the support surface and the outer support wall. 6. The base of claim 5, wherein a diaphragm is defined inwardly toward the central longitudinal axis from the fifth radiused portion. 7. The base of claim 6, wherein the diaphragm comprises about 95% of the surface area of the base. 8. The base of claim 1, wherein the inner core further comprises a top surface extending from the frustoconical sidewall, the top wall having a convex portion relative the reference plane. 9. The base of claim 1, further comprising a plurality of ribs extending from the central portion to the support surface and spaced apart to define a plurality of segments between the central portion and the support surface. 10. The base of claim 1, wherein the support surface has a width of between about 4% to about 10% 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 the reference plane. 12. The base of claim 1, wherein the third radiused portion has a radius of curvature between about 0.119 inches to 0.403 inches. 13. A container comprising: a sidewall; anda base comprising:an outer support wall having a central longitudinal axis;a support surface extending inwardly toward the central longitudinal axis 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 toward the central longitudinal axis 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 parallel to the reference plane;a third radiused portion extending radially inward toward the central longitudinal axis from the intermediate surface and convex relative to the reference plane;a central portion disposed proximate the third radiused portion, the central portion including an inner core having a frustoconical sidewall; anda transition portion having an arcuate cross-section between the third radiused portion and the inner core, the frustoconical sidewall extending at an angle from the transition portion. 14. The container of claim 13, wherein the base further comprises a fourth radiused portion disposed between the support surface and the inner support wall. 15. The container of claim 14, wherein a diaphragm is defined inwardly from the fourth radiused portion of the base. 16. The container of claim 15, wherein the diaphragm comprises at least about 90% of the surface area of the base. 17. The container of claim 13, wherein the base further comprises a fifth radiused portion disposed between the support surface and the outer support wall. 18. The container of claim 17, wherein a diaphragm is defined inwardly toward the central longitudinal axis from the fifth radiused portion of the base. 19. The container of claim 18, wherein the diaphragm comprises about 95% of the surface area of the base. 20. The container of claim 13, wherein the inner core further comprises a top surface extending from the frustoconical sidewall, the top surface having a convex portion relative the reference plane. 21. The container of claim 13, further comprising a plurality of ribs between the central portion to the support surface and spaced apart to define a plurality of segments between the central portion and the support surface. 22. The container of claim 21, wherein the support surface has a width of between about 4% to about 10% 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 the reference plane. 24. The container of claim 13, wherein the third radiused portion has a radius of curvature between about 0.119 inches to 0.403 inches.
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