US Patent 7162820 Flame simulating assembly

A flame simulating assembly for providing an image of flames. The flame simulating assembly has a light source for producing the image of flames, a screen, and a simulated interior fireplace wall positioned behind the screen. The screen has a front surface and is positioned in a path of light from the light source. The screen is adapted to transmit the image of flames through the front surface. The front surface of the screen includes an observation region, which is adapted to permit observation of part of the simulated interior fireplace wall.