Patent ID: 9315292
Filing Date: 2016-04-19
CPC Classification: B31B,B65D,B65G

Claim Text:
1. A nestable paperboard container, comprising: a base; a sidewall attached to the base at a perimeter of the base; a flange extending outwardly from an upper perimeter of the sidewall, wherein the flange comprises a top surface having an underside and a rolled portion that is rolled under the top surface, the rolled portion having an edge that is located adjacent the underside of the top surface, the rolled portion forming a curved outer peripheral edge of the flange shaped to define a cam for aiding the denesting of the paperboard container from like paperboard containers in a nested stack of paperboard containers; and an annular depression formed in the top surface of the flange defining an annular bulge in the underside of the top surface of the flange; wherein at least a portion of the rolled portion extends beneath the annular bulge and the thickness of the rolled portion in the region of the engagement with the annular bulge is greater than the thickness of the remaining extent of the rolled portion; and wherein the flange comprises a generally planar inner segment extending from the sidewall to the annular depression and a generally planar outer segment extending from the annular depression to an outer rim of the flange.