Patent ID: 8733584

Claim:
A system related to stoppering at least one non-circular sipping aperture located within at least one disposable lid of at least one beverage cup comprising: a) at least one stopper body structured and arranged to stopper the at least one non-circular sipping aperture; b) wherein said at least one stopper body comprises i) at least one top portion, ii) at least one bottom portion, and iii) at least one longitudinal axis extending through said at least one top portion and said at least one bottom portion; c) wherein at least one portion of said at least one stopper body comprises at least two feature sets comprising cross sections, each cross section defined by a rectangular portion, with at least one set of opposing sides of said rectangular portions of said cross sections capped with rounded ends, each said cross section being oriented substantially perpendicular to said at least one longitudinal axis; d) wherein each feature set of said at least two feature sets of said cross-sections cross sections comprises i) a first said cross section comprising a first perimeter, ii) a second said cross section comprising a second perimeter, iii) a third said cross section comprising a third perimeter, iv) a fourth said cross section comprising a fourth perimeter; v) wherein said second perimeter is lower in perimeter value than both said first perimeter and said third perimeter, vi) wherein said third perimeter is lower in perimeter value than said first perimeter, vii) wherein said fourth perimeter is lower in perimeter value than said second perimeter and said third perimeter, viii) wherein said first said cross section is positioned above said second said cross section, ix) wherein said second said cross section is positioned above said third said cross section, and x) wherein said third said cross section is positioned above said fourth said cross section; xi) wherein each feature set of said at least two feature sets further comprises a continuous concave curve joining said first said cross section and said third said cross section.