Patent ID: 9238524
Filing Date: 2016-01-19
CPC Classification: B31B,B65D

Claim Text:
1. A process for manufacturing a cup from a paper material comprising an inner sleeve, a bottom, and a tube-shaped pre-formed outer sleeve, the process comprising: joining the bottom to the inner sleeve by forming a bottom skirt, whereby during the formation of the bottom skirt, the bottom skirt is widened outwards at least in one area, wherein the widened area is widened so that an obtuse angle is formed between a horizontal surface of the bottom and an inner surface of the bottom skirt, so that a lower edge of the widened area forms a standing surface for the cup, the widened area extending vertically over an entire height of the bottom skirt from the horizontal surface of the bottom to the standing surface for the cup, with the horizontal surface of the bottom forming a lower extent of a fillable interior of the cup; and after the formation of the widened area, sliding the tube-shaped pre-formed outer sleeve in an axial direction onto the inner sleeve.