Patent ID: 7125142

Claim:
A flame simulating device comprising: (a) a substantially translucent shell having a hollow interior and a directional axis; (b) a plurality of colored light sources, adapted to be positioned within the hollow interior of said shell, wherein said light sources include a first light source emitting light having a first frequency, a second light source emitting light having a second frequency and a third light source emitting light having a third frequency and wherein said third frequency is greater than said second frequency and said second frequency is greater than said first frequency; (c) a light source driving device for selectively activating said first, second and third light sources according to the following transition rules: i. if the first light source is active then activate the second light source next; ii. if the second light source is active then activate either the first light source or the third light source next; and iii. if the third light source is active then activate the second light source next; (d) each of said first, second and third light sources being sequentially activated such that the surface of said shell is illuminated and produces an animated flame effect.