US Patent 10479544 Reusable cup with integrated ribbed heat sink sheath

Aspects of the disclosure relate to a cup including a base, a sidewall extending upward from the base to a top of the cup to define an internal cavity and an open top, wherein the sidewall includes an upper sidewall and a lower sidewall located between the upper sidewall and the base. The lower sidewall can include a lower wall and a plurality of raised ribs extending radially outward from the lower wall and being separated by recesses and the ribs and recesses being elongated in a direction between the top and the base. The cup can include an annular ledge connects the upper sidewall to the lower sidewall, wherein the annular ledge extends inwardly from the upper sidewall to the lower sidewall and forms a reduction in width of the sidewall between the upper sidewall and the lower sidewall.