Disclosed is a container including a box body made of a metal material, the box body including a side wall closed by at least one bottom wall. The side wall includes at least one reinforcing zone that extends over at least part of the height and the circumference of the side wall. The reinforcing zone includes at least one reinforcing moulding. The virtual lines of the reinforcing zone, designed to form straight virtual lines on the reinforcing zone when it is set flat, are each intersected by the at least one reinforcing moulding. Preferably, the at least one reinforcing moulding consists of a non-straight reinforcing moulding with a non-straight contour.

Disclosed is a container including a box body made of a metal material, the box body including a side wall closed by at least one bottom wall. The side wall includes at least one reinforcing zone that extends over at least part of the height and the circumference of the side wall. The reinforcing zone includes at least one reinforcing moulding. The virtual lines of the reinforcing zone, designed to form straight virtual lines on the reinforcing zone when it is set flat, are each intersected by the at least one reinforcing moulding. Preferably, the at least one reinforcing moulding consists of a non-straight reinforcing moulding with a non-straight contour.

A container may comprise a tubular body having a longitudinal axis and a rounded sidewall; a base portion; a rim portion; a vertical portion defined, in part, by the rounded sidewall, aligned along the longitudinal axis, and extending between the base portion and the rim portion; a plurality of grooves defined within the vertical portion, each of the grooves comprising a width defining opposing sides of each of the plurality of grooves, wherein: each of the plurality of grooves is aligned parallel with the longitudinal axis; the valley of each of the plurality of grooves is radially inset a distance from the vertical portion perimeter; and opposing sides of adjacently positioned ones of the plurality of grooves define a peak that is radially aligned with the vertical portion perimeter. The container may also comprise a set of base transition grooves extending between the base portion and the vertical portion and aligned parallel with the longitudinal axis.

A container may comprise a tubular body having a longitudinal axis and a rounded sidewall; a base portion; a rim portion; a vertical portion defined, in part, by the rounded sidewall, aligned along the longitudinal axis, and extending between the base portion and the rim portion; a plurality of grooves defined within the vertical portion, each of the grooves comprising a width defining opposing sides of each of the plurality of grooves, wherein: each of the plurality of grooves is aligned parallel with the longitudinal axis; the valley of each of the plurality of grooves is radially inset a distance from the vertical portion perimeter; and opposing sides of adjacently positioned ones of the plurality of grooves define a peak that is radially aligned with the vertical portion perimeter. The container may also comprise a set of base transition grooves extending between the base portion and the vertical portion and aligned parallel with the longitudinal axis.

Methods of forming an article from a molten plastic composition comprising a polymer and a blowing agent. The methods include injecting the molten plastic composition into a mould, allowing the plastic composition to form a first solid skin adjacent to an in contact with a first cavity-forming surface of the mould and a second solid skin adjacent to and in contact with a second cavity-forming surface of the mould, and then opening the mould before the molten plastic composition between the first and second solid skins in at least one portion of the circumference of a region of the mould cavity defining an annular cross-section of the cavity has solidified.

Methods of forming an article from a molten plastic composition comprising a polymer and a blowing agent. The methods include injecting the molten plastic composition into a mould, allowing the plastic composition to form a first solid skin adjacent to an in contact with a first cavity-forming surface of the mould and a second solid skin adjacent to and in contact with a second cavity-forming surface of the mould, and then opening the mould before the molten plastic composition between the first and second solid skins in at least one portion of the circumference of a region of the mould cavity defining an annular cross-section of the cavity has solidified.

A cup having an endless sidewall with a lower stacking shoulder formed of a sidewall and bottom heel including a convexly outwardly curved rib disposed at a transition between the sidewall and a cup bottom having a bottom wall having a recessed dome-shaped center section providing draw ratio bottom wall thickness reduction to an annular flat bottom wall section defining a puncture region of the cup. The cup sidewall has a ribbed section disposed adjacent the heel and extends upwardly at least one-quarter the height of the cup helping to strengthen the relatively thin sidewall to prevent it from undesirably deforming during puncturing of the cup bottom during beverage making. The cup may include an upper shoulder formed of an outwardly expanded section of the sidewall adjacent the top of the cup and defining an filter attachment seat on one side and a cup carrier on the opposite side.

A cup having an endless sidewall with a lower stacking shoulder formed of a sidewall and bottom heel including a convexly outwardly curved rib disposed at a transition between the sidewall and a cup bottom having a bottom wall having a recessed dome-shaped center section providing draw ratio bottom wall thickness reduction to an annular flat bottom wall section defining a puncture region of the cup. The cup sidewall has a ribbed section disposed adjacent the heel and extends upwardly at least one-quarter the height of the cup helping to strengthen the relatively thin sidewall to prevent it from undesirably deforming during puncturing of the cup bottom during beverage making. The cup may include an upper shoulder formed of an outwardly expanded section of the sidewall adjacent the top of the cup and defining an filter attachment seat on one side and a cup carrier on the opposite side.

A container has a base with upwardly extending sidewalls forming an enclosed volume. A plurality of spaced apart pillars extend from toward the base to toward an upper edge of the sidewalls along the sidewalls. The pillars may have a plurality of supports forming each of the pillars. The pillars provide additional stacking strength to the container without significantly contributing to the weight of the container.