Lid with stopper

Abstract

A lid for a beverage cup can include a base comprising a top surface and an upper sidewall extending upward from edges of the top surface. The lid can include a drinking aperture in the top surface. The lid can include a stopper coupled to an upper sidewall. The stopper can be configured to rotate around an outer circumference of the lid along the upper sidewall. The stopper can be configured to selectively cover the drinking aperture. The lid can include at least two protrusions, each of the at least two protrusions extending at least from an inner circumferential surface of the upper sidewall towards a center of the lid. The at least two protrusions can be configured to limit rotation of the stopper. The at least two protrusions can also be configured to support a second lid or a second beverage cup stacked on the lid.

What is claimed is: 
     
         1 . A lid for a beverage cup, the lid comprising:
 a base comprising a top surface and an upper sidewall extending upward from edges of the top surface;   a drinking aperture in the top surface configured to allow a user to drink;   a stopper coupled to an upper sidewall, the stopper configured to rotate around an outer circumference of the lid along the upper sidewall, the stopper configured to selectively cover the drinking aperture; and   at least two protrusions, each of the at least two protrusions extending at least from an inner circumferential surface of the upper sidewall towards a center of the lid, the at least two protrusions configured to limit rotation of the stopper, the at least two protrusions configured to support a second lid or a second beverage cup stacked on the lid.   
     
     
         2 . The lid of  claim 1 , wherein the drinking aperture is positioned near an edge of the top surface. 
     
     
         3 . The lid of  claim 1 , wherein the stopper comprises a flat portion and a curved portion, the flat portion covering a portion of the top surface, the curved portion configured to cover an inner circumferential surface of a portion of the upper sidewall, a top surface of the portion of the upper sidewall, and an outer circumferential surface of the portion of the upper sidewall. 
     
     
         3 . The lid of claim  3 , wherein the curved portion is configured to snap fit to the portion of the upper sidewall. 
     
     
         5 . The lid of  claim 3 , wherein the flat portion of the stopper comprises a coupling mechanism, wherein the flat portion is coupled to a center portion of the base. 
     
     
         6 . The lid of  claim 5 , wherein the coupling mechanism comprises two or more arms extending downward from a bottom surface of the flat portion of the stopper, wherein the center portion of the base comprises an aperture configured to receive the two or more arms of the stopper. 
     
     
         7 . The lid of  claim 3 , wherein a terminal end of the curved portion can extend to at least a height of a top surface of the flat portion. 
     
     
         8 . The lid of  claim 1 , wherein the top surface of the base is planar. 
     
     
         9 . The lid of  claim 1 , wherein each of the at least two protrusions comprises a thin wall or fin. 
     
     
         10 . The lid of  claim 1 , wherein each of the at least two protrusions is L-shaped. 
     
     
         11 . The lid of  claim 1 , wherein each of the at least two protrusions comprises a first portion and a second portion, wherein the first portion is positioned between the upper sidewall and the second portion. 
     
     
         12 . The lid of  claim 11 , wherein a height of the first portion is greater than a height of the second portion. 
     
     
         13 . The lid of  claim 11 , wherein the first portion is positioned radially inward from the upper sidewall, wherein the second portion is positioned radially inward from the first portion. 
     
     
         14 . The lid of  claim 1 , wherein each of the at least two protrusions is configured to extend from the top surface of the base. 
     
     
         15 . The lid of  claim 1 , wherein each of the at least two protrusions comprises a profile that matches a portion of the stopper. 
     
     
         16 . The lid of  claim 1 , wherein the at least two protrusions comprises a first protrusion and a second protrusion, the first protrusion being spaced in a first rotational direction from the drinking aperture, the second protrusion being spaced in a second rotational direction from the drinking aperture, the second rotational direction opposite the first rotational direction. 
     
     
         17 . The lid of  claim 16 , wherein the first protrusion is positioned 90° from the drinking aperture, wherein the second protrusion is positioned 90° from the drinking aperture. 
     
     
         18 . The lid of  claim 16 , wherein the at least two protrusions comprises a third protrusion, wherein the third protrusion is positioned 180° from the drinking aperture. 
     
     
         19 . The lid of  claim 1 , wherein the lid further comprises a lower sidewall that extends from a bottom planar surface of the base. 
     
     
         20 . The lid of  claim 19 , wherein an outer circumference of the lower sidewall is less than an outer circumference of the upper sidewall. 
     
     
         21 . The lid of  claim 1 , wherein a clearance between a bottom surface of the stopper and a top surface of the base is between 0.010 inches and 0.060 inches. 
     
     
         22 . A set of at least two lids, comprising:
 a first lid;   a second lid, the second lid stacked on the first lid;   each of the first lid and the second lid comprising:
 a base comprising a top surface, a bottom surface, and an upper sidewall extending upward from edges of the top surface, 
 a drinking aperture in the top surface configured to allow a user to drink, 
 a stopper coupled to an upper sidewall, the stopper configured to rotate around an outer circumference of the lid along the upper sidewall, the stopper configured to selectively cover the drinking aperture, and 
 at least two protrusions, each of the at least two protrusions extending at least from an inner circumferential surface of the upper sidewall towards a center of the lid, the at least two protrusions configured to limit rotation of the stopper, 
   wherein the at least two protrusions of the first lid are configured to support the bottom surface of the second lid,   wherein the stopper of the first lid is configured to not contact the bottom surface of the second lid.