Abstract: Thermal destruction of waste includes forming a bath of a melted slag, heating the waste and introducing the waste onto a surface of the bath, passing produced off-gasses through the melted slag, discharging the off-gasses, releasing produced metal and slag from the bath, forming in the closed volume a plasma hose over the surface of the bath by a coaxial electric arc plasma torch by two tubular electrodes located one inside the other, and introducing the waste through an interior of the inner electrode and then through the plasma hose.

Abstract: A headlamp has a complex reflector, a refractor, and a light source. The refractor is composed of upper and lower paraboloidal segments shaped such that the focal distance of the upper paraboloidal segment is shorter than the focal distance of the lower segment. The segments are provided with optical elements in the form of parabolic cylinders with a horizontal forming axis. The profile of the parabolic cylinders form is identical to the profile of the paraboloidal segments. The axis of the light source is located above the axis of the headlamp and the focii of the upper and lower paraboloidal segments are located adjacent the light source end faces.

Abstract: A device for permanent installation of exterior Christmas lighting. The device includes an elongated channel having top and bottom walls joined by a rear wall, and a front wall that depends from the top wall, and a flexible, rectangular screen cover for insertion and retention between the front wall and the bottom wall. The device, in conjunction with one or more additional devices, can be custom fit and mounted by fasteners to a building exterior, such as along principal architectural features--e.g., attached to the eaves or outlining a pitched roof. With the cover screen removed, a string of decorative Christmas lights can be positioned within and stretched from one end of the channel to an opposite end thereof, electrically connected to similar strings within additional such devices, and connected to a source of electrical power.