Patent ID: 6464368
Filing Date: 2002-10-15
Classification: F21S,F21V,F21W,Y10S

Abstract:
A decorative lamp assembly comprising a lamp bulb, an adapter adapted to obtain power supply for said bulb, a lampshade fastened to said adapter around said lamp bulb, and an ornamental tube fastened to said lampshade above said lamp bulb and adapted to receive heat and light from said lamp bulb upon operation of said lamp bulb, said ornamental tube comprising an enclosed tube body sealed after exhaust of air, a porous bottom stuffing layer formed of sodium silicate (NaSiO3) and silica (SiO2) and fixedly disposed at a bottom side inside said enclosed tube body, an upper stuffing material of chemical compound of boiling point below 39Â° C. disposed inside said enclosed tube body above said porous bottom stuffing layer and adapted to produce bubbles when heated by heat energy from said lamp bulb upon operation of said lamp bulb, and a space left inside said enclosed tube body above said upper stuffing material, wherein said ornamental tube further comprises a plurality of tiny plastic balls of different colors disposed in the space inside said enclosed tube body above said upper stuffing material.