Patent ID: 8820657

Claim:
A temperature changing device for use with beverage to change the temperature of the beverage, comprising: a tubular member having an open bottom end and an opposite open top end; said tubular member having a first diameter; a single reducing portion disposed in an upper portion of said tubular member wherein said reducing portions forms a second smaller diameter portion; said reducing portion having a centrally disposed minimum diameter with an upper portion defining a surface starting at said minimum diameter and terminating with a portion having the same diameter as said first diameter; said reducing portion further having a lower portion defining a surface starting at said minimum diameter and terminating with a portion, having the same diameter as said first diameter; and a single inlet opening disposed within said lower portion of said reducing portion, wherein air is drawn in therein and mixes with said beverage to change a temperature thereof as a user draws said beverage up through said tubular member from said open bottom end to said open top end.