Patent ID: 6715630
Filing Date: 2004-04-06
Classification: A47G,B31B,D21H

Abstract:
A disposable food container configured for rigidity and rim stiffness having a characteristic diameter comprising:a generally planar bottom portion; a first annular transition portion extending upwardly and outwardly from said generally planar bottom portion; a sidewall portion extending upwardly and outwardly from said first annular transition portion; a second annular transition portion extending outwardly from said sidewall portion; said sidewall portion defining a generally linear, inclined sidewall profile over a length between said first annular transition portion and said second annular transition portion having an angle of inclination with respect to the vertical from said generally planar bottom portion; and an arcuate outer flange portion having a convex upper surface extending outwardly with respect to said second annular transition portion, the radius of curvature of said arcuate outer flange portion being between about 0.0175 and about 0.1 times the characteristic diameter of said disposable food container; and an inner flange portion extending between said second annular transition portion and said arcuate outer flange portion having a ratio of a radial span to the characteristic diameter of from about 0 to about 0.1, said disposable food container being further characterized by a flange outer vertical drop wherein the ratio of the length of the flange outer vertical drop to the characteristic diameter of the container is greater than about 0.01.