Patent ID: 6446583
Filing Date: 2002-09-10
Classification: A01M,A61L,Y10S

Abstract:
An evaporation device for evaporating volatile substances such as insecticides and aromatics of a type having a housing containing a heating element, with a container for the volatile substance to be evaporated disposed in the housing, a wick which can be heated by the heating element with a wick end protruding from the container along a wick axis, whereby the heating element can be displaced relative to the wick end for an adjustment of the degree of evaporation, and wherein the improvement comprises:a moveable heater assembly carried within the housing for longitudinal displacement relative to the wick axis and relative to the housing; a heating element carried by said moveable heater assembly in a manner that said heating element is adjacent a portion of said wick end for heating said wick portion; and an adjustable connection operatively associated with said heater assembly for positioning said heater element at different axial positions relative to the wick end and the wick axis to adjust the degree of evaporation.