Patent ID: 6567613
Filing Date: 2003-05-20
Classification: A01M,A61L

Abstract:
A device for evaporating a volatile liquid, the device comprising:a container for the volatile liquid; a wick which has a proximal end within the container, with the proximal end adjacent to a base of the container, and a distal end above the container; an electrical heater able to provide heat to the distal end of the wick; a casing which extends over the container and the wick, the casing having an aperture above the distal end of the wick; and a tubular body in a region between the distal end of the wick and the casing, the tubular body being movable between highest and lowest positions to alter a rate of emission from the device of vapor evaporated from the wick; wherein the vapor has a flow pathway from the wick to an exterior of the device through the tubular body, and wherein, when the tubular body is in the highest position, the vapor has an auxiliary flow pathway from the wick to the exterior of the device, which auxiliary flow pathway is not through the tubular body.