Container including a bottom and sidewalls with undulating pattern of peaks and valley. At least one stacking feature is provided to allow a plurality of containers to be stacked. In one embodiment, the stacking feature is disposed proximate a bottom edge of the sidewall at a peak. In another embodi
Container including a bottom and sidewalls with undulating pattern of peaks and valley. At least one stacking feature is provided to allow a plurality of containers to be stacked. In one embodiment, the stacking feature is disposed proximate a bottom edge of the sidewall at a peak. In another embodiment, the stacking feature is a stack flap disposed proximate a top edge of the container. Alternatively, the stacking feature is a stack ring having a shape which corresponds to the sidewall perimeter and has an inwardly protruding lip.
대표청구항▼
1. A stack of containers comprising: a first container and a second container,each of the first container and the second container being substantially similar in shape and including: a bottom having a periphery,a side wall extending generally upward from the bottom about the periphery in an outwardl
1. A stack of containers comprising: a first container and a second container,each of the first container and the second container being substantially similar in shape and including: a bottom having a periphery,a side wall extending generally upward from the bottom about the periphery in an outwardly-extending continuously-undulating pattern of peaks and valleys to define an interior of the container, the side wall defining a top edge having the continuously-undulating pattern of peaks and valleys entirely about a perimeter of the top edge; anda stack ring disposed at the top edge of the first container, the stack ring having an open center and an interior shelf extending inwardly towards the open center;wherein the bottom of the second container is disposed on the interior shelf of the stack ring. 2. The stack of containers of claim 1, wherein the stack ring has an outer perimeter that coincides with the perimeter of the top edge. 3. The stack of containers of claim 2, wherein the outer perimeter of the stack ring has the outwardly-extending continuously-undulating pattern of peaks about the outer perimeter. 4. The stack of containers of claim 1, wherein the stack ring includes a flange portion and a lip portion, wherein the lip portion is disposed between the interior shelf and the flange portion. 5. The stack of containers of claim 4, wherein the lip portion extends in a generally vertical direction, with the flange portion and interior shelf disposed at different locations on the lip portion. 6. The stack of containers of claim 1, wherein the stack ring and at least one container are formed with undercuts to engage each other. 7. The stack of containers of claim 1, wherein the stack ring includes a protrusion which extends around at least a portion of a perimeter of the stack ring. 8. The stack of containers of claim 1, wherein the stack ring includes a reinforcing rib. 9. The container system according to claim 1, wherein the bottom includes a food product centering feature. 10. The container system according to claim 1, wherein the continuously-undulating pattern of peaks and valleys permit venting of each of the first container and the second container of the stack. 11. The container system according to claim 10, wherein a valley of the second container is positioned above a peak of the first container to define gap between the first container and the second container to permit venting of each of the first container and the second container of the stack. 12. The stack of containers of claim 1, wherein each of the first container and the second container is symmetrical about a plurality of diameters in plan view. 13. The stack of containers of claim 1, wherein the stack ring is removable from the first container. 14. The stack of containers of claim 1, wherein the interior shelf defines the open center. 15. A container system, comprising: a container including a bottom having a periphery,a side wall extending generally upward from the bottom about the periphery in an outwardly-extending continuously-undulating pattern to define an interior of the container, the side wall defining a top edge having the continuously-undulating pattern of peaks and valleys entirely about a perimeter of the top edge; anda stack ring disposable proximate the top edge of the side wall. 16. The container system according to claim 15, wherein the stack ring has an interior shelf extending inwardly to define an open center. 17. The container system according to claim 16, wherein the stack ring includes a flange portion and a lip portion, wherein the lip portion is disposed between the interior shelf and the flange portion. 18. The container system according to claim 17, wherein the lip portion extends in a generally vertical direction, with the flange portion and interior shelf disposed at different locations on the lip portion. 19. The container system according to claim 16, wherein the interior shelf extends toward a center of the container to engage and support a bottom of a second container substantially similar to the container. 20. The container system according to claim 16, wherein the interior shelf has a textured surface. 21. The container system according to claim 15, wherein the stack ring has an outer perimeter that coincides with the perimeter of the top edge. 22. The container system of claim 21, wherein the outer perimeter of the stack ring has the outwardly-extending continuously-undulating pattern of peaks and about the outer perimeter. 23. The container system according to claim 15, wherein the stack ring includes a protrusion which extends around at least a portion of a perimeter of the stack ring. 24. The container system according to claim 15, wherein the stack ring includes at least one reinforcing rib. 25. The container system according to claim 24, wherein the at least one reinforcing rib engages an interior surface of the side wall when the stack ring is disposed on the top edge of the side wall of the container. 26. The container system according to claim 15, wherein the continuously-undulating pattern of the side wall includes a continuously-alternating pattern of peaks and valleys. 27. The container system according to claim 15, wherein the bottom defines a generally circular periphery. 28. The container system according to claim 15, wherein the bottom defines a non-circular periphery. 29. The container system according to claim 15, wherein the bottom includes a plurality of apertures therethrough. 30. The container system according to claim 15, wherein the bottom includes a food product centering feature. 31. The container system according to claim 15, wherein the container is made of talc-filled polypropylene. 32. The container system according to claim 15, wherein the stack ring is made of at least one of talc-filled polypropylene or polypropylene. 33. The container system according to claim 15, wherein the stack ring and container are each formed with undercuts to engage with each other. 34. The container system according to claim 15, wherein the continuously-undulating pattern of peaks and valleys comprise an anti-rotation interlock feature. 35. The container system according to claim 15, wherein the continuously-undulating pattern of peaks and valleys permit venting of each of the first container and the second container of the stack. 36. The container system according to claim 35, wherein a valley of second container is positioned above a peak of the first container to define gap between the first container and the second container to permit venting of each of the first container and the second container of the stack. 37. The container system according to claim 15, wherein the continuously-undulating pattern of peaks and valleys comprise an anti-rotation interlock feature. 38. The stack of containers of claim 15, wherein each of the first container and the second container is symmetrical about a plurality of diameters in plan view. 39. The stack of containers of claim 15, wherein the stack ring is removable from the container.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (9)
Hayes, Thomas J.; Gomoll, James N., Base for food containers.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.