Heat exchange method for melting plate candle

• US 7,607,915 B2
• Filed: 12/15/2004
• Issued: 10/27/2009
• Est. Priority Date: 09/10/2004
• Status: Active Grant

• Current Assignee: SC Johnson & Son Incorporated
• Original Assignee: SC Johnson & Son Incorporated
• Inventors: Tenhagen, Georgia A., Adair, Joel E., Varanasi, Padma Prabodh, Furner, Paul E., Kubicek, Chris A., Dwyer, Sean G., Jameson, Elizabeth J.
• Primary Examiner(s): Rinehart; Kenneth B
• Assistant Examiner(s): NDUBIZU, CHUKA CLEMENT
• Application Number:
  US11/012,707
• Publication Number:
  US 20060057527A1
• Time in Patent Office: 1,777 Days
• Field of Search: 431/291, 431/292, 431/289, 431/288, 431/126, 431/35, 431/33
• US Class Current: 431/292
• CPC Class Codes: A61L 9/037 comprising a wick
• CPC Class Codes: F23D 3/16 using candles
• CPC Class Codes: F23D 3/24 Carriers for wicks

Abstract

The present invention relates to melting plate candles which employ heat conductive elements to distribute heat from a burning flame at a wick to a support plate for a solid fuel and to the body of said solid fuel, so as to more rapidly liquefy the solid fuel, such as paraffin wax, and to more uniformly and intensely heat such fuels to increase the efficiency of consumption thereof and to more rapidly release volatile materials contained within said fuels. The heat conductive support plate is configured so as to have a capillary pedestal upon the surface thereof, which cooperatively engages a wick holder comprising a preferably consumable wick and heat conductive fins which conduct heat from a flame upon said wick to said support plate, said wick holder further engaging said capillary pedestal in such a locking manner as to resist accidental removal from said pedestal. The fuel may be provided in various forms, configured to cooperatively engage said wick holder and support plate, and may comprise various volatile materials. The capillary pedestal, in conjunction with the wick holder, causes rapid and complete flow of the liquefied fuel to said wick, and the capillary pedestal and wick holder are shaped so as to provide for variance of capillary flow between them when the wick holder is rotated relative to the capillary pedestal.

Claims

1. A candle comprising a meltable solid fuel element, a melting plate upon which said fuel element rests, and a wick holder comprising a wick and heat conductive fins positioned so as to collect heat from a flame upon said wick and to conduct such heat to said fuel element and to said melting plate, said wick holder engaging said meltable solid fuel element, wherein said wick holder and said capillary pedestal comprise means for causing variation of capillary flow of liquefied fuel from the melting plate to the wick by rotation of said wick holder relative to said capillary pedestal.

2. The candle of claim 1, wherein said means for causing variation of capillary flow comprises means for adjusting a capillary gap between the wick holder and the capillary pedestal.

3. The candle of claim 2, wherein said means for causing variation comprises means to provide variance of capillarity between the wick holder and the capillary pedestal at different circumferential locations of said capillary pedestal.

4. The candle of claim 3, wherein said means to provide variance comprises the capillary lobe including a first shape and the wick holder comprising a second shape, wherein the second shape at least partially surrounds a perimeter of the first shape, and wherein the first shape is not totally complimentary to the second shape.

5. The candle of claim 1, wherein said wick holder includes means for rotating the wick holder about an outer perimeter of the capillary pedestal.

6. A candle as set forth in claim 1, wherein said melting plate further comprises a raised heat conductive portion by which heat is conducted from a flame upon said wick to said melting plate and to said solid fuel element, whereby a pool of heated liquid fuel is created, said melting plate being configured to cause the flow of said heated liquid fuel toward said wick holder.

7. The melting plate candle of claim 5, wherein said means for rotating comprises a lever extending from said wick holder by which said wick holder may be rotated about said capillary pedestal.

8. The melting plate candle of claim 1, wherein said wick holder further comprises heat conductive members configured so as to transfer heat from said heat conductive fins to said solid fuel element.

9. A candle comprising a meltable solid fuel, a support plate upon which said fuel rests, and a pedestal located on said support plate which cooperatively engages the base portion of a wick holder comprising a wick, wherein said base portion at least partially surrounds a perimeter of said pedestal, said wick holder conducting heat from a flame upon said wick to said solid fuel and said support plate by means of heat fins which contact said flame, said wick holder engaging said pedestal in such a manner that rotation of the wick holder about the perimeter of the pedestal causes variation of capillary flow of fuel between said pedestal and said wick holder.

10. The candle of claim 9, wherein said wick holder comprises a plurality of heat conductive fins in close proximity to said flame.

11. The candle of claim 10, wherein said fins are joined by a heat conductive element which passes through a tip of the flame.

12. The candle of claim 10, wherein said meltable solid fuel comprises a replaceable fuel element cooperatively engaging said support plate, pedestal, wick holder, and heat conductive fins.

13. The candle of claim 10, wherein said support plate further comprises a heat conductive portion by which heat is conducted from a flame upon said wick to said solid fuel element, whereby a pool of heated liquid fuel is created, said support plate being configured to cause the flow of said heated liquid fuel toward said wick holder.

14. The candle of claim 9, wherein said support plate is treated so as to be self cleaning.