Method and device for the evaporation of volatile substances...

A - Human Necessities – 61 – L

Patent

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A61L 9/12 (2006.01) B60H 3/00 (2006.01)

Patent

CA 2548907

The present invention is related to devices for evaporating volatile substances in a closed environment, without the use of electric power, heating elements or absorption wicks, for the purpose of simplifying and maximally reducing the cost of the device, but at the same time maintaining its efficacy and also allowing the user to be able to adjust at will the degree of evaporation of said product. For that purpose, the evaporator device uses a vapor permeable membrane as the element responsible for causing the evaporation of the product to be evaporated. The device is especially intended to be used with the cooperation of an air current with a suitable temperature enhancing the evaporation and diffusion of the volatile substance, such as the ventilation air outlet of a vehicle, for example. The volatile substance consists in an air-freshening product, insecticide or the like. The invention is also related to a method for the evaporation of volatile substances through a membrane.

La présente invention a pour objet des dispositifs pour l'évaporation de substances volatiles dans une atmosphère fermée, sans utiliser d'énergie électrique, d'éléments chauffants ou de mèches d'absorption, dans le but de simplifier et de réduire les coûts au maximum, tout en maintenant son efficacité et en permettant en outre que l'utilisateur puisse régler à volonté le degré d'évaporation dudit produit. A cet effet, le dispositif évaporateur utilise une membrane perméable à la vapeur, comme élément chargé de produire l'évaporation du produit que l'on souhaite évaporer. Le dispositif se prête particulièrement à une utilisation avec un courant d'air à la température adéquate favorisant l'évaporation et la diffusion de la substance volatile, comme par exemple la sortie d'air de ventilation d'un véhicule. La substance volatile est un produit désodorisant, insecticide ou analogue. L'invention a également pour objet un procédé permettant l'évaporation par membrane de substances volatiles.

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