MULTI-PIECE CANDLE FUEL ELEMENT

• US 20060263734A1
• Filed: 06/29/2006
• Published: 11/23/2006
• Est. Priority Date: 02/17/2004
• Status: Active Grant

• Current Assignee: SC Johnson & Son Incorporated
• Original Assignee: SC Johnson & Son Incorporated
• Inventors: Nelson, Cory J., Furner, Paul E., Kubicek, Chris A., Wagers, Brian M.
• Granted Patent: US 7,568,912 B2
• Time in Patent Office: Days
• US Class Current: 431/298
• CPC Class Codes: C11C 5/006 wicks, related accessories
• CPC Class Codes: F23D 3/24 Carriers for wicks

Abstract

A candle fuel element includes a wick-holder assembly including a wick spaced from a heat-conductive element, a first fuel charge surrounding the wick, and a second fuel charge slidably engaging and at least partly surrounding the first fuel charge.

Claims

1. A candle fuel element, comprising:

a wick-holder assembly including a wick spaced from a heat-conductive element;

a first fuel charge surrounding the wick; and

a second fuel charge slidably engaging and at least partly surrounding the first fuel charge.

2. The candle fuel element of claim 1, wherein the heat-conductive element is disposed between the first fuel charge and the second fuel charge, and wherein the heat-conductive element derives an opening adapted to allow fluid communication between the first fuel charge and the second fuel charge.

3. The candle fuel element of claim 1, wherein the wick-holder assembly comprises a heat-conductive material that conducts heat from a flame disposed on the wick.

4. The candle fuel element of claim 1, wherein heat from a flame disposed on the wick melts a first portion of the first fuel charge and a second portion of the second fuel charge at substantially the same time.

5. The candle fuel element of claim 1, wherein the wick-holder assembly is configured to regulate via thermal expansion at least one of thermal transfer from a flame disposed on the wick to the wick-holder assembly, a dimension of a capillary space disposed between the wick-holder assembly and a support surface, movement of air surrounding the wick, engagement of the wick-holder assembly to the support surface and thermal transfer from the flame to the first and second fuel charges.

6. The candle fuel assembly of claim 4, wherein a melted fuel travels to the wick through the capillary space up from the support surface and over a capillary pedestal via capillary action when a flame is disposed on the wick.

7. The candle fuel element of claim 1, wherein the heat-conductive element has a first portion comprising a first material with a first thermal expansion coefficient and a second portion comprising a second material with a second thermal expansion coefficient and wherein the first material comprises at least one of a metal, a ceramic, or a polyester.

8. The candle fuel element of claim 1, wherein at least one of the first fuel charge and the second fuel charge comprises an inner core section and an outer covering section and wherein the inner core section has a different property than the outer covering section.

9. The candle fuel element of claim 1, wherein the heat-conductive element moves in response to heat from a flame on the wick.

10. The candle fuel, element of claim 1, wherein each of the first fuel charge and the second fuel charge comprises a wax-like fuel material and a volatile active material, wherein the volatile active material is independently selected for each of the first fuel charge and the second fuel charge and comprises at least one of a fragrance, a musk, a scent, an odor masker, a perfume, and a repellant.

11. The candle fuel element of claim 1, wherein the first fuel charge comprises a first volatile active and has a first melt rate, and the second fuel charge comprises a second volatile active and has a second melt rate, and wherein the first melt rate is substantially faster that the second melt rate.

12. The candle fuel element of claim 1 further comprising a third fuel charge comprising a wax-like solid fuel material a volatile active material, and having a third melt rate, wherein the third solid fuel charge at least partially surrounds the first and second fuel charges, and wherein the third fuel charge connects the first and second fuel charges.

13. The candle fuel element of claim 1, wherein the first fuel charge comprises a first visual effect additive and the second fuel charge comprises a second visual effect additive different from the first visual effect additive.

14. A candle fuel element, comprising:

a wick;

a wick-holder assembly comprising a wick receiver extending upwardly from a base a plurality of heat fins extending upwardly from the base and spaced from the wick receiver, and a plurality of legs extending downwardly from the base, wherein the heat fins move in response to heat from a flame on the wick;

a first fuel charge defining an aperture and having a first characteristic, wherein the wick receiver extends upwardly through the aperture; and

a second solid fuel charge defining a second aperture and having a second characteristic, wherein the first fuel charge and the wick holder assembly are slidably received in the second aperture.

15. The candle fuel element of claim 14, wherein the heat fins define a lateral opening adapted to allow fluid communication between the first fuel charge and the second fuel charge.

16. The candle fuel element of claim 14, wherein the first fuel charge comprises a first volatile active material and has a first melt rate and the second solid fuel charge comprises a second volatile active material and has a second melt rate.

17. The candle fuel element of claim 16, wherein the first volatile active material and the second volatile active material independently comprise at least one of a fragrance, a musk, a scent, an odor masker, a perfume, or a repellant.

18. The candle fuel element of claim 14, wherein the first fuel charge has a toroidal shape and the second fuel charge has a shape comprising at least one of a toroid, a heart, a star, a heart, a triangle, a square, a cylinder, a disk, a caricature, an outline, a profile, an animal, a flower, a leaf, an inidicium, a word, a symbol, a logo, a fruit, and a user defined shape.

19. The candle fuel element of claim 14, wherein the legs are adapted to grip a complementary pedestal in response to thermal changes.

20. The candle fuel element of claim 14, herein at least one of the first fuel charge and the second fuel charge comprises an inner core section and an outer covering section, alga wherein the inner core section has a different property than the outer covering section.