Patent ID: 6501906
Filing Date: 2002-12-31
Classification: A01M,A61L,F24F

Abstract:
An evaporation device for volatile substances such as insecticides, aromatics, and the like comprising:a housing; a heating unit disposed in said housing having a heating block; an electric resistance element carried by said heating block to heat the heating block; a container for a substance to be evaporated to be carried by said housing; a wick inserted into said container having a wick end protruding from the container for the evaporation of the substance in said container; said electric resistance element including a rod-shaped resistance body coated in at least some areas with a resistance layer said resistance layer being processed by one of cutting and grinding in some areas to provide a desired resistance value according to the evaporation temperature required for evaporation of the substance in said container so that a heating unit with small dimensions and miniaturized evaporation device are provided.