Patent ID: 8596479
Filing Date: 2013-12-03
Classification: B65D

Abstract:
1. A one-piece plastic container having a longitudinal container axis comprising: an upper portion; a base portion closing off the end of the container; and a plurality of arched contour ribs molded into a sidewall portion, the sidewall portion integrally formed with and extending from the upper portion to the base portion, the plurality of arched contour ribs each having a longitudinal rib axis, the longitudinal rib axis curving around the longitudinal container axis, the longitudinal rib axis also curving toward the upper portion and toward the base portion to define a plurality of peaks and a plurality of troughs, the plurality of peaks and the plurality of troughs in alternating arrangement about the longitudinal container axis, the plurality of arched contour ribs each having a depth measured from an area of the sidewall portion that is adjacent to the respective rib, at least two of the plurality of arched contour ribs having different depths, each of the plurality of arched contour ribs defined by an upper wall and a lower wall that are joined by a curved inner wall having an innermost sharp radius, the upper wall and the lower wall have different lengths, are tangent to the inner curved wall, provide a cantilever to pivot at the inner curved wall and are configured to move toward each other in response to an internal vacuum pressure of the container, and a plurality of contour lands, each contour land lying between a pair of contour ribs, adjacent contour lands having different profiles and exterior shapes; wherein the upper and lower walls define a rib angle therebetween that after hot-filling is reduced by at least about 3% and no more than about 8% due to internal vacuum pressure.