Beverage container cover

Abstract

A cover mountable over a rim of a beverage container has a closed body having an interior cavity extending from an open end at one end of the body to an opposite second end. An inner surface of the sidewall of the body defines a plurality of contact locations with the rim of a beverage container to enable a single shape and size cover to be disposed on any of a number of beverage containers having different diameter rims. The inner surface of the wall of the body may have a smooth conical shape extending from a larger diameter at the first end of the body to a smaller diameter toward the second end of the body, a plurality of incremental, concentric steps of decreasing diameter between the first and second ends of the body or a plurality of ribs, each having an inner surface which tapers from a large diameter spacing at the first end of the body from adjacent ribs to a smaller diameter spacing toward the second end of the body.

What is claimed is: 
     
         1 . A cover for a beverage container having a rim the cover comprising:
 a body having a wall defining an interior cavity with an open first end and an opposed second end; and   an inner surface of the wall defining an engagement point with a rim of a beverage container to mount the cover completely on the rim of a beverage container.   
     
     
         2 . The cover of  claim 1  further comprising:
 the inner surface of the wall of the body defining a plurality of beverage container mounting locations between the first and second ends to enable a single body to be mounted on one of a plurality of beverage containers having different diameter rims. 
 
     
     
         3 . The cover of  claim 1 :
 the wall of the body has a conical shape extending from a large diameter at the first end of the body to a smaller diameter toward the second end of the body.   
     
     
         4 . The cover of  claim 1  further comprising:
 seat means, carried on the inner surface of the wall within the cavity, for engaging the rim of one of a plurality of different diameter beverage containers. 
 
     
     
         5 . The cover of  claim 4  wherein the seat means comprises:
 a plurality of concentric steps formed on an inner surface of the wall of the body. 
 
     
     
         6 . The cover of  claim 5  wherein:
 each step defines one of a continuous and discontinuous annular surface. 
 
     
     
         7 . The cover of  claim 5  further comprising:
 each step being equally incrementally spaced from adjacent steps. 
 
     
     
         8 . The cover of  claim 5  wherein:
 each step has an equal radial extent. 
 
     
     
         9 . The cover of  claim 1  further comprising:
 a plurality of ribs carried on the inner surface of the wall of the body and extending radially inward into the cavity, the ribs defining longitudinal contact points for supporting the cover on one of a plurality of different diameter beverage containers. 
 
     
     
         10 . The cover of  claim 9  wherein:
 the plurality of ribs have equal radial dimensions. 
 
     
     
         11 . The cover of  claim 9  wherein:
 the ribs extend between from the first end toward the second end of the body.