Patent ID: 7341698

Claim:
An evaporator, comprising: a bottle containing a substance to be evaporated; a wick, having a lower portion disposed within the bottle and an upper portion protruding from the bottle, for drawing the substance to be evaporated from the bottle toward the upper portion of the wick; a housing for retaining the bottle, the housing formed of separate front, middle and back shells; a fan, formed within the back shell of the housing, for creating an airstream; at least one air inlet formed in the back shell of the housing for supplying air to the fan; a louver structure, disposed downstream of the fan and formed in the middle shell, and including a plurality of louvers positioned at various angles, for directing the airstream created by the fan upwardly and away from the upper portion of the wick; and at least one vent formed in the front shell of the housing through which the airstream exits the housing, wherein the vent is disposed downstream of both the fan and the louver structure.