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  Electronic candleUSPTO Application #: 20070003894Title: Electronic candle Abstract: Disclosed is an electronic candle, which includes a center stick of wax with a wick for burning, a perfume stick surrounding the center stick of wax for giving off a good smell when melting, an electronic device, which is fastened to the perfume stick at the bottom side and has a circuit board and a photo sensor for driving the circuit board to produce sound and lighting effects during burning of the wick of the center stick of wax, and optical fibers embedded in the center stick for transmitting light from the flame burning at the wick to the photo sensor to induce the photo sensor. (end of abstract) Agent: Lowe Hauptman Berner, LLP - Alexandria, VA, US Inventor: Shung-Lun Yu USPTO Applicaton #: 20070003894 - Class: 431289000 (USPTO) Related Patent Categories: Combustion, Candle, E.g., Taper, Etc., Having Structure Additional To Wax And Wick The Patent Description & Claims data below is from USPTO Patent Application 20070003894. Brief Patent Description - Full Patent Description - Patent Application Claims
BACKGROUND OF THE INVENTION [0001] (a) Field of the Invention [0002] The present invention relates to candles and more particularly, to an electronic candle, which produces sound and lighting effects when the wick of the candle body thereof is burning. [0003] (b) Description of the Prior Art [0004] A conventional electronic candle is generally comprised of a candle body and an electronic device. The electronic device is used as holder means to hold the candle body, having a light emitting and/or sound generating circuit means. When the wick of the candle body is burning, the user can switch on the electronic device to emit light and/of to produce sound. [0005] According to this design, the user controls the operation of electronic device manually through a manual switch, i.e., the electronic device does not work automatically upon burning of the wick of the candle body. SUMMARY OF THE INVENTION [0006] The present invention has been accomplished under the circumstances in view. According to one aspect of the present invention, the electronic candle comprises a candle body, the candle body comprising a center stick of wax and a perfume stick surrounding the center stick of wax, the center stick of wax having a wick, the perfume stick being formed of a mixture containing a wax and a perfume; an electronic device fastened to a bottom side of the perfume stick, the electronic device comprising a circuit board adapted to produce sound and lighting effects, and a photo sensor adapted to control the operation of the circuit board; and at least one optical fiber embedded in the center stick and adapted to transmit light from the flame burning at the wick of the center stick to the photo sensor to induce the photo sensor. According to another aspect of the present invention, the candle body further comprises an isolating layer surrounding the perfume stick to prevent quick vaporization of the good smell of the perfume contained in the perfume stick. According to still another aspect of the present invention, the perfume stick can be made of a jelly candle with a perfume contained therein. According to still another aspect of the present invention, a protective end cap is fastened to the wick to prevent contact of the wick with the electronic device. The protective end cap is a heat conducting ring made metal, ceramics, or glass. According to still another aspect of the present invention, the electronic device further comprises a tubular shade provided at the top side thereof. The shade has a plurality of peripheral holes for guiding in light from the light emitting elements of the circuit board to induce the photo sensor, preventing interruption of the operation of the photo sensor due to floating of the flame upon a wind. BRIEF DESCRIPTION OF THE DRAWINGS [0007] FIG. 1 is a perspective view of an electronic candle according to the present invention. [0008] FIG. 2 is an exploded view of the electronic candle according to the present invention. [0009] FIG. 3 is side view in section of the electronic candle according to the present invention. [0010] FIG. 4 is an exploded view of the electronic device for the electronic candle according to the present invention. [0011] FIG. 5 is an assembly view of FIG. 4. [0012] FIG. 6 is a cross sectional view of the present invention, showing one installation example of the electronic device in the candle body. [0013] FIG. 7 is a cross sectional view of the present invention, showing another installation example of the electronic device in the candle body. [0014] FIG. 8 is a schematic drawing showing an operation status of the electronic candle according to the present invention. [0015] FIG. 9 is a side view in section of an alternate form of the electronic candle according to the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS [0016] Referring to FIGS. 1.about.3, an electronic candle in accordance with the present invention is shown comprising a center stick 1, a perfume stick 2, an electronic device 3, and an outer isolating tube 4. The center stick 1 is a stick of wax concentrically axially set through the perfume stick 2 and forming with the perfume stick 2 the body of the electronic candle. The outer isolating tube 4 is a tube of isolating substance, for example, wax that surrounds the perfume stick 2, preventing quick loss of the good smell of the perfume stick 2. [0017] The center stick 1 is a stick of wax having a wick 11 through it. The perfume stick 2 is a stick of wax added with a perfume such as lavender, Pythoncidere, bergamot, santalaceae, or the like. Alternatively, the perfume stick 2 can be a jelly candle with a perfume in it. The electronic device 3 is set in the bottom side of the electronic candle and controlled by light to produce a lighting or sound effect, having at least one, for example, two optical fibers 5 axially embedded in the center stick 1 and extended to the topmost edge of the center stick 1 for guiding in light to start the electronic device 3. Because the optical fibers 5 is embedded in the center stick 1, it is well protected by the center stick 1 against the corrosion of the perfume in the perfume stick 2. The outer isolating tube 4 has a cylindrical and upwardly extending open chamber 41 and a closed bottom wall 42. The electronic device 3 is set in the open chamber 41 of the outer isolating tube 4 and supported on the closed bottom wall 42. [0018] The isolating tube 4 according to this embodiment is molded from wax. Alternatively, the isolating tube 4 can be made of paper, plastic film, paint, or any of a variety of other suitable materials for surrounding the perfume stick 2 to prevent loss of the good smell of the perfume stick 2 before use. [0019] When burning the wick 11, the center stick 1 and the perfume stick 2 are gradually melted and vaporized, and at the same time the light of the flame is transmitted through the optical fibers 5 to the electronic device 3, thereby starting the electronic device 3. When the wick 11 is extinguished, the electronic device 3 is off. [0020] The wick 11 has the bottom end thereof extending out of the bottom side of the center stick 1 and mounted with a protective end cap 12. The protective end cap 12 is a heat conducting ring made of metal, ceramics, glass, or the like that prevents direct contact of the center stick 1 and the wick 11 with the electronic device 3, isolates the electronic device 3 from wax oil, and absorbs heat from the burning wick 11, causing the wick 11 to extinguish when the flame reached the wick 11 reached the protective end cap 12. Continue reading... Full patent description for Electronic candle Brief Patent Description - Full Patent Description - Patent Application Claims Click on the above for other options relating to this Electronic candle patent application. ###  How KEYWORD MONITOR works... a FREE service from FreshPatents1. Sign up (takes 30 seconds). 2. Fill in the keywords to be monitored. 3. Each week you receive an email with patent applications related to your keywords. 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