Cup with grooves

Abstract

A cup can include a base and a sidewall extending upward from the base to a top of the cup. The sidewall can taper at an angle between 4° and 12° from the base. The sidewall can include an upper sidewall and a lower sidewall. The lower sidewall can include a first portion, a second portion, and a third portion. The lower sidewall can include a plurality of channels arranged around an outer circumference of the lower sidewall. In the first portion, the plurality of channels can have a first width between 0.05 inches and 0.065 inches and a first depth between 0.05 inches and 0.065 inches. In the third portion, the plurality of channels or grooves can have a second width between 0.02 inches and 0.035 inches and a second depth between 0.02 inches and 0.035 inches.

1 . A cup, comprising:
 a base; and   a sidewall extending upward from the base to a top of the cup, wherein the sidewall tapers at an angle between 4° and 12° from the base,   wherein the sidewall comprises an upper sidewall and a lower sidewall,   wherein the lower sidewall comprising a first portion, a second portion, and a third portion, the lower sidewall comprising a plurality of channels or grooves arranged around an outer circumference of the lower sidewall and extending in a direction between the base and the top, wherein the plurality of channels extend along the first portion, the second portion, and the third portion of the lower sidewall,   wherein in the first portion, the plurality of channels or grooves comprises a first width between 0.05 inches and 0.065 inches and a first depth between 0.05 inches and 0.065 inches,   wherein in the third portion, the plurality of channels or grooves comprises a second width between 0.02 inches and 0.035 inches and a second depth between 0.02 inches and 0.035 inches,   wherein in the second portion, a depth of the plurality of channels or grooves transitions from the first width to the second width and a width of the plurality of channels or grooves transitions from the first depth to the second depth, wherein a length of the second portion is less than 0.5 inches.   
     
     
         2 . The cup of  claim 1 , wherein a ratio of the first width and the second width is between 2:1 and 2.2:1. 
     
     
         3 . The cup of  claim 2 , wherein a ratio of the first depth and the second depth is between 2:1 and 2.2:1. 
     
     
         4 . The cup of  claim 1 , wherein the length of the second portion is between 0.1 inches to 0.5 inches. 
     
     
         5 . The cup of  claim 1 , wherein a ratio of a height of the cup to a diameter of the base of the cup is between 1.5:1 and 4:1. 
     
     
         6 . A cup, comprising:
 a base; and   a sidewall extending upward from the base to a top of the cup, wherein the sidewall tapers at an angle between 4° and 12° from the base,   wherein the sidewall comprises an upper sidewall and a lower sidewall,   wherein the upper sidewall comprises an upper diameter between 3.0 inches and 4.5 inches and the lower sidewall comprises a lower diameter between 3.0 inches and 4 inches,   wherein the sidewall comprises a step change from the upper diameter to the lower diameter between the upper sidewall and the lower sidewall,   wherein the sidewall comprises a perpendicular portion connecting the upper sidewall and the lower sidewall,   wherein the lower sidewall comprises a plurality of channels or grooves arranged around an outer circumference of the lower sidewall and extending in a direction between the base and the top,   wherein first ends of the plurality of the channels or grooves terminate distal to the perpendicular portion of the sidewall.   
     
     
         7 . The cup of  claim 6 , wherein the cup comprises a gap between a bottom end of the upper sidewall and a top end of the plurality of channels or grooves. 
     
     
         8 . The cup of  claim 7 , wherein the gap comprises a length between 0.05 inches and 0.1 inches. 
     
     
         9 . The cup of  claim 6 , wherein the cup comprises a vertical overhang extending from a bottom end of the upper sidewall towards the base of the cup and spaced from the lower sidewall. 
     
     
         10 . The cup of  claim 9 , wherein the vertical overhang has a length between 0.03 inches and 0.05 inches. 
     
     
         11 . The cup of  claim 9 , wherein a space between an inner circumferential surface of the vertical overhang and an outer circumferential surface of the lower sidewall is between 0.02 inches and 0.04 inches. 
     
     
         12 . The cup of  claim 6 , wherein a difference between the upper diameter and the lower diameter is between 0.05 inches to 0.1 inches. 
     
     
         13 . A cup, comprising:
 a base; and   a sidewall extending upward from the base to a top of the cup,   a plurality of grooves or channels extending around an outer circumference of at least a portion of the sidewall,   wherein a middle portion of the sidewall comprises a length between 1 inch and 4 inches, wherein the middle portion of the sidewall extends at least 0.5 inches above and below a center of the cup along a longitudinal axis,   wherein in the middle portion, the plurality of channels or grooves comprise a first width between 0.05 inches and 0.065 inches and a first depth between 0.05 inches and 0.065 inches.   
     
     
         14 . The cup of  claim 10 , wherein in a lower portion of the sidewall the plurality of grooves or channels comprises a second width between 0.02 inches and 0.035 inches and a second depth between 0.02 inches and 0.035 inches. 
     
     
         15 . The cup of  claim 10 , wherein the lower portion of the sidewall extends to a bottom portion of the cup. 
     
     
         16 . The cup of  claim 13 , wherein a transition portion of the sidewall is positioned below the middle portion of the sidewall, wherein in the transition portion, a depth of the plurality of channels or grooves transitions from the first width to a second width and a width of the plurality of channels or grooves transitions from the first depth to a second depth, the first width being larger than the second width, the first depth being larger than the second depth. 
     
     
         17 . The cup of  claim 16 , wherein the transition portion comprises a length between 0.2 inches to 0.4 inches. 
     
     
         18 - 21 . (canceled)