Patent ID: 6375337
Filing Date: 2002-04-23
Classification: F21S

Abstract:
An ornamental display lamp assembly comprising:a combination lamp socket and plug device, said combination lamp socket and plug device comprising an electric plug unit horizontally disposed at a bottom side thereof, and an electric socket unit vertically disposed at a top side thereof; a lampshade fastened to said electric socket unit of said combination lamp socket and plug device, said lampshade comprising a hollow bottom shell fastened to said electric socket unit, and a top cover shell covered on said bottom shell, said top cover shell having a center mounting through hole; a lamp bulb installed in said electric socket unit of said combination lamp socket and plug device and suspended inside said lampshade; and a decorative glass tube mounted in the center mounting through hole of said top cover shell of said lampshade, said decorative glass tube having a topside extended out of said lampshade and a bottom side disposed in contact with the said lamp bulb to receive heat and light from said lamp bulb; wherein said decorative glass tube contains a deposit accumulated on the inside, a volume of water floated on said deposit, and a volume of dichloromethane (CH2Cl2), said deposit being composed of solid state sodium silicate (NaSiO3) and rocks embedded in said sodium silicate, the ratio between said dichloromethane and said layer of water being at 1:4 by volume, said dichloromethane being maintained between said deposit and said layer of water when said lamp bulb is off and said decorative glass tube receives no heat from said lamp bulb, said dichloromethane being changed into bubbles, that float upwards from a bottom side of said layer of water to a top side thereof and then sink when reached the top side of said layer of water, when heated by heat from said lamp bulb during the operation of said lamp bulb.