Cup with a valve for drinking juice

Abstract

A drinking vessel with a cup having a hollow inner body and an open end, a removable cap for sealingly closing the open end, an outer surface with a spout and an air vent, and an inner surface with a tubular outlet passage and a tubular inlet passage. The cup further contains a one piece flow control valve made of an elastomeric material. The flow control valve contains an inlet valve and an outlet valve joined together by a connector bar. The outlet valve of parabolic configuration has a reinforcing ring and a partition wall, held in place by two jutting out walls that are part of the connector bar. The inlet valve has a tubular edge sitting on two wing-like projections holding a membrane with a slit. The tubular edge is integral with the connector bar and the two wing-like projections, with outlet and inlet valves fitting into the outlet and inlet passages, respectively.

1 . A drinking vessel comprising: 
 a cup having a hollow inner body and an open end;    a removable cap for sealingly closing said open end, comprising an outer surface with a spout and an air vent, and an inner surface with a tubular outlet passage and a tubular inlet passage;    a one piece flow control valve, made of an elastomeric material, comprising an inlet valve and an outlet valve joined together by a connector bar, said outlet valve of parabolic configuration having a reinforcing ring and a partition wall, held in place by two jutting out walls that are part of said connector bar, said inlet valve having a tubular edge sitting on two wing-like projections holding a membrane with a slit, said tubular edge being integral with the connector bar and the two wing-like projections, said outlet and inlet valves fitting into said outlet and inlet passages, respectively.    
   
   
       2 . The drinking vessel of  claim 1  wherein said tubular outlet passage protrudes from under said spout and having a pair of recesses at its open end.  
   
   
       3 . The drinking vessel of  claim 1  wherein said outlet valve fits by pressure into the tubular outlet passage as the connector bar fits into said pair of recesses, and said inlet valve fits by friction around the tubular inlet passage by means of the tubular edge.  
   
   
       4 . The drinking vessel of  claim 1  wherein said outlet valve comprises a pair of flexible side parts that act as flexible membranes.  
   
   
       5 . The drinking vessel of  claim 1  wherein said slit of said membrane of the inlet valve being in the middle.  
   
   
       6 . The drinking vessel of  claim 1  wherein said partition wall of the outlet valve is transversal to the axis of said connector bar.