Candle Dispenser
AssigneeS. C. Johnson & Son, Inc.
InventorsNitin Sharma, Allyce M. Gilligan
Life of this patent
Estimating the term…
Abstract
Devices dispenser treatment chemicals in response to heat generated by a candle. Heat transfer elements carry flame heat to an impregnated substrate that is positioned mostly or entirely below the candle. The air treatment chemical vapors are kept away from prolonged direct exposure to flame heat, thereby reducing heat degradation of the active. The candle automatically adjusts heat transfer rates to correct for decreasing amounts of active on the substrate as the substrate sears being used up.
Claims19
A device for dispensing an air treatment chemical, the device comprising:
- a housing for supporting a candle;
- a candle supported on the housing, the candle having a wick that can be lit to create a flame;
- and
- a substrate bearing an air treatment chemical that is mounted at least in part under the candle.
A device for dispensing an air treatment chemical, the device comprising:
- a housing for supporting a candle;
- a candle supported on the housing, the candle having a wick that can be lit to create a flame;
- and
- a substrate bearing an air treatment chemical that is mounted at least in part under the candle;
- wherein the substrate is positioned such that heat from the candle flame, if the wick is lit, can drive air treatment chemical out of the housing.
A refill for a device for dispensing an air treatment chemical, the refill comprising:
- a container;
- candle wax in the container and a wick extending in the candle wax;
- a heat transfer structure mounted below and also axially along the candle wax, the heat transfer structure having an axially extending fin structure and a lower radial extension, the fin structure being positioned at least in part adjacent an upper portion of the wick;
- and
- a porous substrate positioned adjacent the radial extension, the porous substrate bearing the air treatment chemical;
- wherein, if the wick is lit, heat from a flame created thereby can heat the fin structure, which can heat the lower radial extension, which can heat the porous substrate, which can then dispense air treatment chemical.
A refill for a device for dispensing an air treatment chemical, the refill comprising:
- a container;
- candle wax in the container and a wick extending in the candle wax;
- a heat transfer structure mounted to the candle wax;
- and
- a porous substrate bearing the air treatment chemical positioned at least in part below the candle wax;
- wherein, if the wick is lit, heat from a flame created thereby can heat the heat transfer structure, which can heat the porous substrate below the candle wax, which can then dispense air treatment chemical.
Dependencies are inferred from the claim text.