Drinking Straw Device

Abstract

A drinking straw device, comprising: a sealed tube ( 30 ); a corrugated pipe ( 16 ) disposed inside the tube ( 30 ), for being used as a drinking straw; a coolant ( 18 ), disposed in a space confined between the tube ( 30 ) and the corrugated pipe ( 16 ), for cooling the corrugated pipe ( 16 ); and a unidirectional valve ( 22 ), for allowing flow of beverage only from an inlet ( 14 ) of the corrugated pipe ( 16 ) to an outlet thereof ( 12 ); thereby providing a drinking device that instantly cools a beverage while it is being consumed.

1 . A drinking straw device, comprising:
 a sealed tube ( 30 );   a corrugated pipe ( 16 ) disposed inside said tube ( 30 ), for being used as a drinking straw;   a coolant ( 18 ), disposed in a space confined between said tube ( 30 ) and said corrugated pipe ( 16 ), for cooling said corrugated pipe ( 16 ); and   a unidirectional valve ( 22 ), for allowing flow of beverage only from an inlet ( 14 ) of said corrugated pipe ( 16 ) to an outlet thereof ( 12 );   
       thereby providing a drinking device that instantly cools a beverage while being consumed. 
     
     
         2 . A drinking straw device according to  claim 1 , wherein a part of said tube ( 30 ) is in a bulb form, thereby increasing said space confined between said tube ( 30 ) and said corrugated pipe ( 16 ), and allowing increasing a length of said corrugated pipe ( 16 ). 
     
     
         3 . A drinking straw device according to  claim 1 , wherein a part of said space which is confined between said tube ( 30 ) and said corrugated pipe ( 16 ) is filled with gas, thereby compensating on loss of said space when said coolant increases its volume. 
     
     
         4 . A drinking straw device according to  claim 1 , wherein the corrugations are in a spiral form. 
     
     
         5 . A drinking straw device according to  claim 1 , wherein the corrugations are in a zigzag form. 
     
     
         6 . A drinking straw device according to  claim 1 , wherein said tube is made of stiff material. 
     
     
         7 . A drinking straw device according to  claim 1 , wherein said tube is made of elastic or flexible material. 
     
     
         8 . A drinking straw device according to  claim 1 , wherein said coolant ( 18 ) comprises water. 
     
     
         9 . A drinking straw device according to  claim 8 , wherein said coolant ( 18 ) comprises antifreeze. 
     
     
         10 . A drinking straw device according to  claim 1 , wherein said valve is made of an elastic funnel.