Information
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Patent Grant
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6326728
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Patent Number
6,326,728
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Date Filed
Friday, October 1, 199925 years ago
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Date Issued
Tuesday, December 4, 200123 years ago
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CPC
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US Classifications
Field of Search
US
- 313 623
- 313 578
- 313 271
- 315 74
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International Classifications
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Abstract
A new type of light comprises a casing used for containing an emitting device. Further, the emitting device comprises a couple of wires, an insulator ball, a filament and a fuse. The couple of wires are connected with a power supply via the casing, wherein the contact ponts of wires and casing are defined as the bottom of the light. Moreoever, the insulator is positioned above the bottom of the light. Subsequently, the filament is position above the insulator ball, and the fuse is posted on the top of wires. Particularly, the tops of the wires are wound to form hooks to hold the fuse. The hooks are flattened for increasing the adhesion of connection between the wires and the fuse.
Description
FIELD OF THE INVENTION
The present invention generally relates to a new type of light, and more particularly, relates to a new type of light comprising a filament, a fuse, a couple of conductors and an insulator. Further, the relative position between the filament and the fuse is changed to improve the reliability of the light.
BACKGROUND OF THE RELATED ART
Since T.A. Edision disclosed the first light in the 1880s, many kinds of illuminations have been used, thus allowing life at night to become diversified. The illuminations are used for adornment and in brightening. The power of light emitted is qualified as Ohm's law as W=V
2
/R, wherein the V is denoted as the loading voltage of the circuit and R stands for resistance. Otherwise, the principle light emitting is indicated as the “Black body emission” principle. The principle indicates the relationship between the wavelength of emitted light and the temperature of the emitting source (for example, the human being emits the IR at room temperature). Hence, visible light can be generated by using a suitable material, such as tungsten, which the tungsten is preferably heated to about 3,000° C. The suitable material must be chemically stable at a high temperature. Referring to
FIG. 1
is a cross-sectional view of a conventional light
10
is shown therein.
More complex structures of light, such as a light containing a fuse, have been developed. The fuse of the light is used to prevent the excess use of electric power. The light containing the fuse is shown as FIG.
2
. The light
20
is composed of a tungsten wire
23
, a fuse
25
, an insulator
24
and a couple of wires
22
. All of the elements of the light
20
are contained in a casing
21
. All of the elements are mounted in the following sequence: The couple of wires
22
are fitted through the bottom of the casing
21
wherein the pinnacles of the couple of wires
22
are formed as hooks. Further, the filament
23
is hooked between the hooks of the couple of wires
22
. Moreover, a fuse
25
is wound around the couple of wires
22
for protecting the circuit, wherein the position of the fuse
25
is under the filament
23
. In a string of lights, one or more lights fail due to all of the lights on the circuit of the string. The fuse
25
is used for preventing all of the lights on the string from being disabled. For insulation, an insulator ball
24
is used between the couple of the wires for a fixing purpose.
In the light
20
described above, the fuse
25
is usually wound around the couple of wires
22
. The fuse
25
may loosen when the filament is heated at high temperature. When the lights of ornaments are unavoidably shifted, the wires are easily loosened with the wires
22
.
SUMMARY OF THE INVENTION
According to one aspect of the invention, there is provided a new type of light. The disclosed new type of light has the excellent coupling reliability of the fuse. Therefore, the light of the present invention has the advantage of preventing vibration of the surroundings.
In another embodiment of the present invention, the light is also composed of an insulator ball at the bottom, a filament disposed atop of the conductive wires, a fuse disposed between the insulator ball and the filament. In order to prevent loosing of the fuse, the fuse is fastened in one end with two spiral circles for clockwise direction and another end with two spiral circles for counterclockwise direction.
The above and other features, particularly, and the advantages of the invention will be more readily apparent from the reading of the following detailed description of the invention taken in conjunction with the accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
The foregoing aspects and many of the attendant advantages of this invention will become more readily appreciated as the same becomes better understood by reference to the following detailed description, when taken in conjunction with the accompanying drawings, wherein:
FIG. 1
shows a cross-sectional view of an original light.
FIG. 2
shows a cross-sectional view of a prior art of a light with a fuse.
FIG. 3
shows a cross-sectional view of the light according to the present invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
Referring to
FIG. 3
, the light
30
according to the present invention is composed of a filament
33
, a fuse
35
and an insulator ball
34
wherein all of them are connected between a couple of wires
32
. Further, all of the components are contained in a glass-casing
31
, and the couple of wires
32
are connected to a power supply through the casing
31
.
According to the present invention, the casing
31
can be the material selected from a group consisting of glass, colored glass and any kind of color plastic casings. The casing contains an emitting device which will radiate a light beam, a couple of wires
32
extending from the casing
31
and coupled to the power supply. The wires can be formed by an alloy, such as copper and magnesium.
The emitting device in the casing
31
consists of the couple of wires
32
wherein an insulator ball
34
is located at the lower end of the wires
32
near bottom of the casing
31
and space apart the wires
32
to provide insulation of the wires
32
, a fuse
35
is located atop the wires
32
, and a filament
33
is disposed between the insulator ball
34
and the fuse
35
. The connecting points of the wires
23
and casing
31
are defined as the bottom of the light
30
. The detailed position of the components of the emitting device is as following: The insulator ball
34
is selected from a group consisting of glass, ceramic or plastic. Successively, the filament
33
is positioned about 5-10 mm above the insulator ball
34
. Finally, the fuse
35
is positioned on the top of the couple of wires
32
wherein the top of wires are wound as hooks to connect to the fuse
35
, and the distance between the top of wires
32
and filament
33
is about 3-4 mm. In order to fasten the fuse
35
and wires
32
, the hooks are pressed and flattened. By pressing the hooks of the wires
32
, the connecting function between the fuse
35
and wires
32
become more rigid. According to the first embodiment of the present invention, the reliability of the connection between fuse
35
and wires
32
is increased. Therefore, the problem of the conventional ornamental lights that easily fail according to the vibrations from the surroundings can be resolved.
Referring now to
FIG. 4
, the figure shows a second embodiment of the present invention. Due to the unreliable fixing of the fuse of the conventional light, the present embodiment introduces a new structure to fix the fuse
35
. In this figure, the emitting device also includes a pair of wires
32
disposed within the casing
31
. The insulator ball
34
separated the wires
32
and is positioned about 10-20 mm from the bottom of the light
30
. Next, the filament
33
is located atop the wires
32
and fixed according to the conventional method. Moreover, the fuse
35
is configured above the insulator ball
34
about 5-10 mm. The winding method of the fuse
35
is as follows: One end of the fuse
35
winds on one of the wires
32
with two spiral circles in clockwise direction, the other end of the fuse
35
winds on another one of the wires
32
also with two spiral circles, but in counterclockwise direction.
By using the new structure of the light conventional failure mode of disconnecting is also avoided. Furthermore, since the length of the fuse
35
according to the second embodiment of the present invention is much shorter than conventional light, power consumption of the present invention can be reduced.
However, the sizes described above are an example such as an ornament light in celebration, and the present invention would be constructed according to the desired sizes. While the preferred embodiment of the invention has been illustrated and described, it will be appreciated that various changes can be made therein without departing from the spirit and scope of the invention.
Claims
- 1. A new type of light comprising:a casing; an emitting device for encapsulating inside said casing comprising: a couple of wires being extended from outside of said casing to inside of said casing, and a bottom of said light is defined as the connection points of said wires and casing, further, the top of said couple of wires are formed as hooks; an insulator ball being posited above said bottom of said light for used to fitting said couple of wires; a filament being posited above said insulator ball for connecting with said couple of wires; and a fuse being posited on said top of said couple of wires and being hooked on top of said couple of wires by said hooks.
- 2. The light according to claim 1, wherein said casing is selected from a group consisting of glass and plastic.
- 3. The light according to claim 1, wherein said couple of wires is formed by alloy.
- 4. The light according to claim 3, wherein said alloy is composed of copper and magnesium.
- 5. The light according claim 1, wherein said insulator ball is selected from a group consisting of glass, plastic and ceramic.
US Referenced Citations (3)