Back to results
US 4,072,855 AGranted
Lamp with changing luminous effects
OwnerLudovico Marcheseinventor
Life of this patent
Estimating the term…
Abstract
A lamp having a moving luminous aesthetic effect made up of a luminous incandescent source directed through a transparent container above the luminous source and being filled with a liquid mixture of trichloroethylene and dichloroethylene having dispersed therein a plurality of platelets adapted to float in the liquid, each of the platelets having at least one reflecting surface thereon.
Claims16
A lamp with changing luminous effects comprising means to provide heat and light and a transparent container located adjacent said means to provide heat and light;
- said container being filled with a mixture of liquids, the density of the liquid mixture varying with the temperature of said means to provide heat, the liquid mixture having metallized platelets dispersed therein which have a thickness which, related to the surface thereof and to the density of the liquid mixture at room temperature, is such that said platelets float on said liquid at room temperature, but do not float when said liquid has been heated by said heating means;
- the platelets each having at least one face which has been polished to reflect the rays emitted by the means to provide light;
- the means to provide heat and light generating a movement of the platelets within the liquid and sparkling of the luminous rays, due to the reflection produced by the polished faces of said platelets, the motion of the platelets resulting from convection currents in the liquid mixture and variation in density in the liquid due to the heating effect of said means to provide heat.
A lamp for providing changing luminous effects, comprising:
- a lamp lower portion having a chamber therein, and a luminous means for generating heat and light housed within said lower portion;
- a transparent container located above said lamp lower potion and in light communication therewith, said container being filled with a clear liquid and a plurality of reflective platelets dispersed and floating in said liquid, the density of said liquid being between 1.27 and 1.47 and the density of said reflective platelets being slightly less than the density of said liquid such that at room temperature and under quiescent conditions said reflective particles float on said liquid;
- multi-colored means located between said luminous means and said liquid to cause luminous rays from said luminous means to be multi-colored;
- and
- means to cause convection currents and a decrease in density in said liquid, in turn causing said reflective platelets to sink into said liquid and causing movement of said reflective platelets within said liquid and sparkling of luminous rays by reflection of light from said luminous means to and off of said reflective platelets, said means comprising means to activate said luminous means.
2 more elements
Dependencies are inferred from the claim text.