Rigid four radii rim paper plate

Details Rigid four radii rim paper plate Rigid four radii rim paper plate

A - Human Necessities

47

G

A47G 19/03 (2006.01)

Patent

CA 2077636

-20- A pressed paper plate includes a planar center 12 which forms a bottom for the plate and has an outer peripheral surface 13. An outwardly projecting side wall 14 includes a first rim portion 14A which is convex upward and is joined to the outer peripheral surface of the planar center, and a second rim portion 14B which is convex downward and is joined to the first rim portion. A third rim portion 16A, which is joined to the second rim portion of the outwardly projecting side wall and a fourth rim portion 16B which is provided for forming an outer edge for the container, are both convex downward. The arc lengths and radii of the first, second, third and fourth rim portions are selected for enhancing rigidity of the pressed paper plate as compared to a conventional paperboard container made from the same paperboard stock.

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