초록

A drink cup includes a body formed to include an interior fluid-storage region and a brim. The brim is coupled to the body to surround an opening into the interior fluid-storage region.

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1. A drink cup comprises a body formed to include an interior region providing a fluid-holding reservoir anda rolled brim coupled to the body to frame an opening into the interior region, wherein the rolled brim includes an annular lip coupled to an upper portion of the body and arranged to lie outs

1. A drink cup comprises a body formed to include an interior region providing a fluid-holding reservoir anda rolled brim coupled to the body to frame an opening into the interior region, wherein the rolled brim includes an annular lip coupled to an upper portion of the body and arranged to lie outside of the interior region and surround the upper portion of the body to define a downwardly opening ridge-receiving chamber therebetween and an annular ridge coupled to an inner lip wall of the annular lip and arranged to lie in the downwardly opening ridge-receiving chamber to provide pivot means for establishing a pivot about which the annular lip is rolled during exposure of the annular lip to a progressive die as a container comprising the body, annular lip, and annular ridge is run through the progressive die to produce the drink cup so that an outer lip wall that is included in the annular lip and that is arranged to face outwardly away from the inner lip wall of the annular lip has a round shapewherein the annular lip terminates at a distal end and includes a first segment coupled to the upper portion of the body, a third segment configured to include the distal end, and a second segment arranged to interconnect the first and third segments and coupled to the annular ridge, and the annular ridge is arranged to extend away from the inner lip wall of the annular lip and into the ridge-receiving chamber in a direction toward the upper portion of the body. 2. The drink cup of claim 1, wherein each of the first, second, and third segments is bounded by a convex curved outer surface and the convex curved outer surfaces of the first, second, and third segments cooperate to define the outer lip wall characterized by the round shape. 3. The drink cup of claim 2, wherein the inner lip wall includes an annular flat inner surface provided on the second segment and a concave curved surface provided on the third segment and the annular ridge is arranged to interconnect the annular flat inner surface and the concave curved surface. 4. The drink cup of claim 1, wherein the inner lip wall includes an annular flat inner surface provided on the second segment and a concave curved surface provided on the third segment and the annular ridge is arranged to interconnect the annular flat inner surface and the concave curved surface. 5. The drink cup of claim 1, wherein a portion of the inner lip wall of the annular lip included in the first segment comprises a first concave surface and a first flat inner surface and the first concave inner surface is arranged to interconnect an exterior surface of the upper portion of the body and the first flat inner surface, another portion of the inner lip wall of the annular lip included in the second segment comprises a second flat inner surface, the first flat inner surface is arranged to interconnect the first concave surface and the second flat inner surface, and the second flat inner surface is arranged to interconnect the first flat inner surface and annular ridge. 6. The drink cup of claim 5, wherein the annular ridge includes a cylindrical first exterior surface and an annular second exterior surface, the cylindrical first exterior surface is arranged to interconnect second flat inner surface and annular second exterior surface, and the annular second exterior surface is arranged to interconnect the cylindrical first exterior surface and a further portion of the inner lip wall of the annular lip included in the third segment. 7. The drink cup of claim 6, wherein the annular second exterior surface of the annular ridge is arranged to lie in a plane that is arranged to lie in spaced-apart parallel relation to the second flat inner surface. 8. The drink cup of claim 6, wherein the further portion of the annular lip included in the third segment is a concave curved inner surface arranged to face toward the first concave curved inner surface. 9. The drink cup of claim 6, wherein the cylindrical first exterior surface of the annular ridge is orthogonal to each of the second flat inner surface and to the annular second exterior surface. 10. The drink cup of claim 5, wherein the annular ridge includes first and second exterior surfaces that meet at a common edge and face outwardly into the ridge-receiving chamber. 11. The drink cup of claim 10, wherein the first exterior surface is cylindrical. 12. The drink cup of claim 11, wherein the first exterior surface is orthogonal to the second flat inner surface. 13. The drink cup of claim 10, wherein the second exterior surface is annular. 14. The drink cup of claim 13, wherein the second exterior surface is flat and arranged to lie in a plane that is arranged to lie in spaced-apart parallel relation to the second flat inner surface. 15. A drink cup comprises a body including a floor and a side wall extending upwardly from the floor and cooperating with the floor to form an interior region providing a fluid-holding reservoir,an annular lip including a distal end, an inner lip wall extending from the distal end to an exterior surface of an upper portion of the side wall and cooperating with the exterior surface of the upper portion of the side wall to form a downwardly opening ridge-receiving chamber, and an outer lip wall extending from the distal end to an interior surface of an upper portion of the side wall and having a round shape with a substantially uniform radius of curvature from the distal end to the upper portion, the lip having a first segment coupled to the side wall, a third segment comprising the distal end of the lip and a second segment between the first and third segments, andan annular ridge coupled to the inner lip wall to lie in the ridge-receiving chamber spaced from the side wall and arranged to extend from the second segment away from the inner lip wall into the ridge-receiving chamber. 16. A drink cup comprises a body including a floor and a side wall extending upwardly from the floor and cooperating with the floor to form an interior region providing a fluid-holding reservoir,an annular lip including a distal end, an inner lip wall extending from the distal end to an exterior surface of an upper portion of the side wall and cooperating with the exterior surface of the upper portion of the side wall to form a downwardly opening ridge-receiving chamber, and an outer lip wall extending from the distal end to an interior surface of an upper portion of the side wall and having a round shape, andan annular ridge coupled to the inner lip wall to lie in the ridge-receiving chamber and arranged to extend outwardly away from the inner lip wall into the ridge-receiving chamber,wherein the inner lip wall includes a flat inner surface providing a portion of a boundary of the ridge-receiving chamber and a concave curved surface providing another portion of the boundary of the ridge-receiving chamber and the annular ridge is arranged to interconnect the flat inner surface and the concave curved surface. 17. The drink cup of claim 16, wherein the annular ridge includes first and second exterior surfaces that meet at a common edge and face outwardly into the ridge-receiving chamber. 18. The drink cup of claim 17, wherein the first exterior surface has a cylindrical shape and mates with the flat inner surface and the second exterior surface has an annular shape and mates with the concave curved surface. 19. A drink cup comprises a body formed to include an interior region providing a fluid-holding reservoir anda rolled brim coupled to the body to frame an opening into the interior region, wherein the rolled brim includes an annular lip coupled to an upper portion of the body and arranged to lie outside of the interior region and surround the upper portion of the body to define a downwardly opening ridge-receiving chamber therebetween and an annular ridge coupled to an inner lip wall of the annular lip, spaced apart from the upper portion of the body, and arranged to lie in the downwardly opening ridge-receiving chamber to provide pivot means for establishing a pivot about which the annular lip is rolled during exposure of the annular lip to a progressive die as a container comprising the body, annular lip, and annular ridge is run through the progressive die to produce the drink cup so that an outer lip wall that is included in the annular lip and that is arranged to face outwardly away from the inner lip wall of the annular lip has a round shape and a substantially uniform radius of curvature from a distal end of the annular lip to the upper portion of the body.