Patent ID: 8381542

Claim:
A device for modifying the temperature of a beverage in a vessel having a rim, the device comprising a. a hollow rigid body having side walls and top and bottom ends defining an interior chamber for retaining a temperature modifying substance that has been pre-cooled or pre-heated to change the temperature of the beverage when placed in indirect contact with the beverage and b. a cap attached to the top end of the body, the cap having a main portion and an arm extending first laterally away from the body and then downward so that the distance between the downward portion of the arm and the main portion of the cap is less than or equal to the thickness of the rim of the vessel for frictionally and detachably securing the device to the rim of the vessel to retain at least a portion of the body inside the vessel in a fixed position, wherein the temperature modifying substance is in thermal communication with the beverage for exchanging heat with the beverage, and wherein the arm and the main portion of the cap form a notch having an inverted “U” shape having a width corresponding to a minimum rim thickness.