Dual use cup assembly

Abstract

A cup assembly with an upper concavity and a lower concavity, a means located on the inside of the upper concavity for detachably attaching the cup assembly to a container, and a means located on the inside of the lower concavity for detachably attaching the cup assembly to a container.

1 . A cup assembly for a container comprising:
 a base, a side wall extending generally upwardly from the base terminating at an upper rim surrounding an open top thereby creating an upper concavity, and a side wall extending generally downwardly from the base and terminating at a lower rim surrounding an open bottom thereby creating a lower concavity;   means, located on the inside of said upper concavity, for detachably attaching the cup assembly to a container; and   means, located on the inside of said lower concavity, for detachably attaching the cup assembly to a container.   
   
   
       2 . A cup assembly as recited in  claim 1 , wherein:
 said means, located on the inside of said upper concavity, for detachably attaching the cup assembly to a container, includes a plurality of threads located on the inside of said wall extending generally upwardly from the base for threadably engaging and sealing a container with a threaded neck.   
   
   
       3 . A cup assembly as recited in  claim 1 , wherein:
 said means, located on the inside of said upper concavity, for detachably attaching the cup assembly to a container, includes a stopper attached to said base for extending into, engaging, and sealing a container opening.   
   
   
       4 . A cup assembly as recited in  claim 1 , wherein:
 said means, located on the inside of said lower concavity, for detachably attaching the cup assembly to a container, includes a plurality of threads located on the inside of said wall extending generally downwardly from the base for threadably engaging and sealing a container with a threaded neck.   
   
   
       5 . A cup assembly as recited in  claim 1 , wherein:
 said means, located on the inside of said lower concavity, for detachably attaching the cup assembly to a container, includes a stopper attached to said base for extending into, engaging, and sealing a container opening.   
   
   
       6 . A cup assembly as recited in  claim 1 , wherein:
 said means, located on the inside of said upper concavity, for detachably attaching the cup assembly to a container, includes an inner wall extending generally upward from said base and inside said upper concavity terminating at a rim that surrounds an open top thereby creating an inner upper concavity with a plurality of threads located on the inside thereof for threadably engaging and sealing a container with a threaded neck.