Illumination – With liquid container
Reexamination Certificate
2000-07-03
2001-10-30
O'Shea, Sandra (Department: 2875)
Illumination
With liquid container
C362S096000, C362S806000, C362S351000, C040S409000, C446S267000
Reexamination Certificate
active
06309084
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention relates to a lamp, and more particularly to a lamp showing dynamically changeful luster and shadow.
FIGS. 1 and 2
are assembled and exploded perspective views, respectively, of a conventional lamp
10
showing floating and lustrous foil fragments. The lamp
10
includes a base
11
, a transparent glass container
12
connected on a top of the base
11
, and a top cover
13
covering a head opening of the glass container
12
. The base
11
has a light-emitting means
111
mounted therein to produce hot light when the light-emitting means
111
is connected to an external power source (not shown). The transparent glass container
12
contains a low-boiling-point liquid
121
in which a plurality of differently colored lustrous foil fragments
122
float. When the light-emitting means
111
projects hot light to a bottom of the transparent glass container
12
, the colored foil fragments
122
refracts differently colored rays. The hot light of the light-emitting means
111
also heats the bottom of the glass container
12
and causes the liquid
121
to convect in the container
12
and therefore bring the lustrous foil fragments
122
to move up and down in the container
12
. The colored rays refracted from the lustrous foil fragments
122
make the lamp
10
an attractive ornament. Such lamp showing floating and lustrous foil fragments and colored rays of light has been introduced into the market for many years. Except some changes in the appearance, such lamp has no change in its display function at all during the past years. Due to the transparent glass container
12
, consumers could easily see the floating and lustrous foil fragments
122
from outside of the lamp
10
, and the lamp
10
is less attractive to the consumers after it has been used for a period of time. It is therefore tried by the inventor to develop a lamp showing dynamically changeful luster and shadow to create a different decorative effect for the lamp
10
.
SUMMARY OF THE INVENTION
A primary object of the present invention is to provide a lamp having a frosted shade to show dynamically changeful luster and shadow on the lamp.
Another object of the present invention is to provide a lamp having a frosted shade that can be differently shaped to create novel and unique appearance for the lamp and show more changeful luster and shadow on the shade.
To achieve the above and other objects, the lamp of the present invention mainly includes a transparent glass container in which a clear liquid having a plurality of colored lustrous foil fragments floating in the liquid is contained, and a frosted shade covering the glass container with a clearance left between them. Light projected by the lamp on the floating lustrous foil fragments is refracted onto the frosted shade to show dynamically changeful luster and shadow on the frosted shade, creating novel and unique decorative effect. The glass container and the frosted shade may be of any shape and may have different wall thickness to enhance the decorative effect of the lamp.
REFERENCES:
patent: 2860232 (1958-11-01), Gray
patent: 4072856 (1978-02-01), Marchese
Dougherty & Troxell
O'Shea Sandra
Ward John Anthony
LandOfFree
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