KINETIC FLAME DEVICE

• US 20110019422A1
• Filed: 08/06/2010
• Published: 01/27/2011
• Est. Priority Date: 09/30/2008
• Status: Active Grant

• Current Assignee: L&L Candle Company, LLC
• Original Assignee: Disney Enterprises Incorporated (The Walt Disney Company)
• Inventors: Patton, Douglas M., Schnuckle, Gary W.
• Granted Patent: US 8,070,319 B2
• Time in Patent Office: Days
• US Class Current: 362/277
• CPC Class Codes: F21K 9/23 Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings
• CPC Class Codes: F21S 10/04 simulating flames
• CPC Class Codes: F21W 2121/00 Use or application of lighting devices or systems for decorative purposes, not provided for in codes F21W2102/00 – F21W2107/00
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]
• CPC Class Codes: H01K 7/06 for decorative purposes
• CPC Class Codes: Y10S 362/81 Imitation candle

Abstract

An apparatus creating a flickering flame effect. The apparatus includes a housing with an interior space with first and second stages. A drive mechanism generates a time varying electromagnetic field extending into the first stage. A first pendulum member is pivotally mounted in the interior space of the first stage and includes first and second magnets on first and second ends, with the first end proximate to the drive mechanism such that the first magnet interacts with the varying electromagnetic field to cause movement of the pendulum member. The apparatus includes a second pendulum member pivotally mounted in the second stage with a magnet on a first end proximate to the second end of the first pendulum member. A flame silhouette element extends from the second pendulum member, and a light source transmits light onto the flame silhouette, which is moving due to the magnetic coupling of the pendulum members.

Claims

1. An apparatus for simulating a flame, comprising:

a housing including an interior space;

a drive mechanism generating a time varying electromagnetic field that extends into the interior space;

a pendulum member pivotally mounted within the interior space of the housing, the pendulum member including a magnet or ferrous tag on a first end positioned proximate to the drive mechanism, whereby the magnet or ferrous tag interacts with the time varying electromagnetic field, wherein the pendulum member further includes a flame silhouette element extending from a second end of the pendulum member; and

a light source adapted to selectively transmit light onto the flame silhouette element.

2. The apparatus of claim 1, wherein the drive mechanism comprises a coil of wire and a signal generator providing time-varying current to the coil to create the time-varying magnetic field.

3. The apparatus of claim 1, wherein, in response to the interacting between the magnet or ferrous tag and the time-varying magnetic field, the pendulum member with the flame silhouette element is displaced in a random pattern over time, whereby the flame silhouette element has kinetic motion concurrently with receiving the light from the light source.

4. The apparatus of claim 1, wherein the pendulum member comprises an elongated body with an hour glass shape including a lower, wider portion, a narrower, middle portion, and an upper, wider portion including the flame silhouette element and wherein the body of the pendulum member is pivotally supported by a first support element extending across at least a portion of the housing and through a hole in the body of the pendulum member.

5. The apparatus of claim 1, wherein the light source is positioned within the interior space of the housing more proximate to the drive mechanism than the second end of the pendulum member, whereby the flame silhouette element is illuminated by the light transmitted from within the housing.

6. The apparatus of claim 1, further comprising two or more permanent magnets positioned within the interior space and generating a magnetic field through which the magnet or ferrous tag travels during operation of the apparatus.

7. The apparatus of claim 6, wherein the two or more permanent magnets are positioned on an interior surface of the housing and spaced apart a distance from the drive mechanism.

8. A kinetic flame device, comprising:

a housing with a sidewall defining an interior space with a first stage and a second stage;

an elongated, first pendulum member with a first permanent magnet positioned near a first end and second permanent magnet positioned near a second end, wherein the first pendulum member is pivotally mounted within the first stage;

an elongated, second pendulum member with a third permanent magnet positioned near a first end and a flame silhouette element extending from a second end, wherein the second pendulum member is pivotally mounted within the second stage of the housing with the first end of the second pendulum member spaced apart and proximate to the second end of the first pendulum member; and

during an operating time period, a coil providing a time-varying magnetic field within a portion of the first stage containing the first end of the first pendulum member.

9. The kinetic flame device of claim 8, further comprising a light source positioned within the housing directing light outward from the interior space and a reflector directing the light from the light source toward the flame silhouette element.

10. The kinetic flame device of claim 8, further comprising at least two permanent magnets positioned within the interior space of the housing in the second stage adjacent to the first end of the second pendulum member, whereby the magnets apply a magnetic field attracting or repelling the third permanent magnet.

11. The kinetic flame device of claim 8, further comprising:

an outer casing extending about the housing, the outer casing comprising a top portion with an opening through which the flame silhouette element extends in an up position;

a flame retraction assembly including a spring member attached to housing and a retraction bar connected to the spring member and through the second pendulum member to pivotally support the second pendulum member within the interior space of the housing; and

a removable cap assembly including an elongated body for extending through the opening of the top of the outer casing to contact the retraction bar and rotated the spring member and move the retraction bar and supported second pendulum member inward into the interior space to a down position, wherein the removable cap assembly further comprises a cap covering the opening and a wick extending outward from the cap away from the outer casing.

12. The kinetic flame device of claim 8, further comprising a scent dispensing element positioned proximate to the coil and dispensing scented fumes into the interior space when heated by the coil.

13. The kinetic flame device of claim 8, wherein the time-varying magnetic field applies displacement forces to the first permanent magnet causing the first pendulum member to be displaced from an at rest position with kinetic motion during the operating time period.

14. The kinetic flame device of claim 13, wherein the second permanent magnet generates a second magnetic field, wherein the third permanent magnetic field is positioned within the second magnetic field during at least a portion of the operating time period such that the second and third permanent magnets interact, wherein, in response to the interaction of the second and third permanent magnets, the second pendulum member is displaced with kinetic motion, and wherein the first pendulum member has a first range of movement that is greater than a second range of movement of the second pendulum member.

15. The kinetic flame device of claim 8, further comprising first and second support elements, wherein the first support element comprises a rigid body extending across the interior space within the first stage and through a hole provided in the first pendulum member, and wherein the second support element comprises a rigid body extending across the interior space within the second stage and through a hole provided in the second pendulum member.

16. The kinetic flame device of claim 15, wherein the first and the second pendulum members are spaced apart from the sidewall and wherein the second end of the first pendulum member is spaced apart from the first end of the second pendulum member, whereby the first pendulum member is driven through a first random pattern by the time-varying magnetic field and the second pendulum member is driven through a second random pattern differing from the first random pattern free of contact with the sidewall and between the first and second pendulum members.

17. A flame simulator, comprising:

an electrically driven motion engine including a coupling member, wherein the motion engine generates chaotic motion at the coupling member in at least two dimensions;

a movable flame body magnetically coupled to the coupling member such that the chaotic motion of the coupling member is transferred to the movable flame body; and

a light projector emitting a spot of light towards the flame body,

wherein the motion engine further comprises;

a hollow housing having a sidewall defining a first end and a second end;

an electromagnetic coil proximate to the first end of the housing;

a drive circuit coupled to the coil and providing a signal to the drive coil to produce a time-varying magnetic field in a vicinity of the drive coil;

a support wire spanning across the housing and affixed to the housing sidewall, wherein the support wire is located at a position along the sidewall that is closer to the second end than to the first end; and

a pendulum having a hole, wherein the support wire passes through the hole allowing the pendulum to pivot about the hole on the support wire.

18. The flame simulator of claim 17, wherein the signal is a square wave signal or a sine wave signal and wherein the pendulum has a first end proximate to the first end of the housing and a second end proximate to the second end of the housing, wherein the pendulum is supported in the housing such that the first and second ends are contained within the housing.

19. The flame simulator of claim 17, further comprising permanent magnets supported on an inner surface of the sidewall of the hollow housing adjacent a magnet or ferrous tag on the movable flame body, whereby travel of the movable flame body is limited by magnetic fields provided by the permanent magnets.

20. The flame simulator of claim 19, wherein the light projector is positioned to emit light upward onto the flame body, the light projector being a single-color light emitting diode spot light, and wherein a scent release component is positioned within the hollow housing releasing scent in response to being heated by the electrically driven motion engine, the released scent being disseminated from the hollow housing at least in part by the chaotic motion of the coupling member and the movable flame body.