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A device for diffusing volatile substances, particularly deodorants for vehicle interiors. The device comprises a container designed to contain a liquid volatile substance to be diffused, a wick disposed partially in the container and a lid applied to the container around one end of the wick. The l

A device for diffusing volatile substances, particularly deodorants for vehicle interiors. The device comprises a container designed to contain a liquid volatile substance to be diffused, a wick disposed partially in the container and a lid applied to the container around one end of the wick. The lid comprises a cap provided with slots and mounted revolving with respect to the axis of the wick. Between the cap and the wick there is interposed an intermediate element integral with the lid. The intermediate element has a U-bolt structure and is provided with slots.

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The invention claimed is: 1. A device for diffusing volatile substances, in particular deodorants for vehicle interiors, comprising: a container designed to contain a volatile liquid substance to be diffused, a wick disposed partially inside the container, a lid fitted on the container around one e

The invention claimed is: 1. A device for diffusing volatile substances, in particular deodorants for vehicle interiors, comprising: a container designed to contain a volatile liquid substance to be diffused, a wick disposed partially inside the container, a lid fitted on the container around one end of the wick, provided with a mobile element which can be moved to regulate the airflow from the wick to the outside of the lid, characterised in that: said mobile element comprises a cap, provided with slots and mounted for rotation with respect to the axis of the wick, between said cap and said wick being interposed an intermediate element having a U-shape structure and being provided with slots, said lid comprising an outer shell which partially covers said rotatable cap, and said outer shell having at least one slot able to leave uncovered at least some of said slots of the rotatable cap. 2. A diffuser device according to claim 1 characterised in that said rotatable cap has a substantially cylindrical shape and is hollow on the inside with longitudinal slots provided in its side wall. 3. A diffuser device according to claim 2, characterised in that said longitudinal slots are disposed in the side wall of the cap so as to form two grids disposed in diametrically opposite positions and in that said outer shell has two slots in diametrically opposite positions. 4. A diffuser device according to claim 1, characterised in that said rotatable cap comprises a top wall provided with at least one slot and in that said intermediate element has an upper part provided with at least one hole. 5. A device for diffusing volatile substances, in particular deodorants for vehicle interiors, comprising: a container designed to contain a volatile liquid substance to be diffused, a wick disposed partially inside the container, a lid fitted on the container around one end of the wick, provided with a mobile element which can be moved to regulate the airflow from the wick to the outside of the lid, characterised in that said mobile element comprises a cap, provided with slots and mounted for rotation with respect to the axis of the wick, between said cap and said wick being interposed an intermediate element having a U-shape structure and being provided with slots; said rotatable cap comprises a top wall provided with at least one slot and in that said intermediate element has an upper part provided with at least one hole; and in said top wall of the rotatable cap there are peripherally provided two curved slots disposed in diametrically opposite positions and in that in said upper part of the intermediate element there are provided two holes disposed in diametrically opposite positions. 6. A diffuser device according to claim 1, characterised in that said intermediate element comprises side walls provided with longitudinal slots. 7. A diffuser device according to claim 6, characterised in that said intermediate element comprises two side walls disposed in diametrically opposite positions, provided with respective longitudinal slots. 8. A device for diffusing volatile substances, in particular deodorants for vehicle interiors, comprising: a container designed to contain a volatile liquid substance to be diffused, a wick disposed partially inside the container, a lid fitted on the container around one end of the wick, provided with a mobile element which can be moved to regulate the airflow from the wick to the outside of the lid, characterised in that said mobile element comprises a cap, provided with slots and mounted for rotation with respect to the axis of the wick, between said cap and said wick being interposed an intermediate element having a U-shape structure and being provided with slots; and said intermediate element comprises a transverse plate supporting said U-shape structure and provided with a central hole for passage of the wick. 9. A diffuser device according to claim 8, characterised in that said transverse plate has two slots disposed externally with respect to said U-shape structure. 10. A diffuser device according to claim 8, characterised in that beneath said transverse plate of the intermediate element there are provided flexible tongues provided with teeth to couple to a flange of said container. 11. A device for diffusing volatile substances, in particular deodorants for vehicle interiors, comprising: a container designed to contain a volatile liquid substance to be diffused, a wick disposed partially inside the container, a lid fitted on the container around one end of the wick, provided with a mobile element which can be moved to regulate the airflow from the wick to the outside of the lid, characterised in that said mobile element comprises a cap, provided with slots and mounted for rotation with respect to the axis of the wick, between said cap and said wick being interposed an intermediate element having a U-shape structure and being provided with slots; and the diffuser device comprises a coupling means applied to said cap to couple the diffuser device to an external element. 12. A diffuser device according to claim 11, characterised in that said coupling means is a clip.