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US 7,252,805 B2Granted
Device for vaporising and diffusing oils
AssigneeGivaudan SA
InventorsColin William Brown, Guy Edward Naish
Life of this patent
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Abstract
A device which uses a heat source for heating and diffusing fragrant oils or insecticidal oils. The oil is contained in a reservoir remote from the heat source and the device comprises means for transferring the oil from a reservoir to a surface of a heat-absorbing means wherein heat from the heat source is transferred by conduction to said surface to volatilise the oil.
Claims9
A device for vaporising and diffusing oils comprising:
- a container made of heat-conducting material and consisting of a wall having inside and outside surfaces, the inside surface defining a cavity to receive a radiant heat source,
- a reservoir suitable for containing a fragrant oil or insecticide oil, and
- a porous rod that communicates with the reservoir and the outside surface of the container wall thereby to carry oil from the reservoir to the outside surface, the porous rod being a wick that has a portion that has the form of a cylinder having inner and outer curved sides and being closed at one end, from which closed end depends coaxially with and away from the cylinder, a solid cylindrical rod adapted to contact the oil;
- and
- at least part of the container has the form of a cylinder that is adapted to hold a heat source and that is configured so as to be nestable within the wick cylinder and in heat-conducting contact therewith.
2 more elements
Dependencies are inferred from the claim text.