Not applicable.
Not applicable.
1. Field of the Invention
The present invention relates to electroluminescent cable. More particularly, the present invention the relates to connectors that are used to join such electroluminescent cables, and power cords, in a proper end-to-end relationship.
2. Description of Related Art Including Information Disclosed Under 37 CFR 1.97 and 37 CFR 1.98
Electroluminescent cable is a cool-to-the-touch, bendable, vinyl-coated wire that emits a pleasant 360° softly glowing light. Electroluminescent cable has a flexible wire cable having a solid copper center conductor surrounded by a material which is luminescent in an electric field. A pair of thin filaments or wires are shorted together and helically wound around the luminescent material. The assembly is covered with one or two layers of vinyl or other polymeric insulating material.
When an alternating current is conducted through the center conductor and the pair of filaments, the alternating electromagnetic fields between the conductors causes the luminescent material to glow. Although the electroluminescent cable may be powered directly from an AC power supply, the electroluminescent cable is frequently powered by a DC inverter connected to a battery. The color that is emitted by the cable can vary with the frequency of the AC voltage or current. Usually, the voltage must exceed a minimum threshold voltage before the electroluminescent cable will glow.
Electroluminescent cable technology is relatively new and only within the past few years has electroluminescent cable become available in consumer products. Electroluminescent cable is particularly applicable in those applications that require lengths of glowing lights. As such, the electroluminescent cable can replace those applications that involve LEDs or other lamps.
Unfortunately, in the past, it has been very difficult to connect such electroluminescent cables in end-to-end relationships. A complicated technique of stripping the wires and soldering is required in order to properly connect the cables together. Importantly, it is necessary to avoid damage to the filaments to the electroluminescent wire during the soldering procedure. As such, barriers must be incorporated during the soldering operation so as to avoid such damage. A variety of sleeves are required after the connections are achieved so as to provide the proper insulating characteristics. The sleeves or covers are often difficult to apply in such confined locations. As such, a need has developed so as to provide a connector for electroluminescent cables which allows the electroluminescent cables to be joined in end-to-end relationship.
In the past, various patents have issued relating to such electroluminescent cable. For example, U.S. Patent Publication No. 2005/0152126, published on Jul. 14, 2005 to I. Hadar, shows an electroluminescent cable assembly that includes a reel constructed for winding the cable thereon. A supporting member rotatably mounts the reel for permitting the electroluminescent cable to be deployed therefrom. A self-contained power supply is carried by the reel so as to be rotated therewith and so as to supply electrical power to the electroluminescent cable when deployed from the reel.
U.S. Patent Publication No. 2005/0213313, published on Sep. 29, 2005 to Baumberg et al., shows an electroluminescent lighting filament having a connector at an end thereof that can be removably connected to a connector at an end of another electroluminescent lighting filament so that the electroluminescent lighting filament may be connected to another electroluminescent lighting filament. A storage spool is provided upon which such electroluminescent lighting filament can be stored and unwound.
U.S. Patent Publication No. 2008/0265767, published on Oct. 30, 2008 also to Baumberg et al., provides an electroluminescent cable and method of fabrication thereof. The electroluminescent cable includes a composite core electrode including an elongated flexible metal portion substantially surrounded by one or more layers of a flexible conductive compound. The composite core electrode is surrounded by a dielectric layer, an electroluminescent layer, a transparent conductive layer and a polymer layer.
U.S. Pat. No. 6,932,639, issued on Aug. 23, 2005 to G. Woodruff, describes an electroluminescent cable connector for mechanically and electrically splicing together a pair of electroluminescent cables. Each cable has a center conductor coated with an electroluminescent phosphor and two fine wires spiraling the length of the phosphor coating. The connector has an insulated base into which the electroluminescent wires are inserted at opposite ends. The electroluminescent wires pass through annular sleeves of conducting material which interconnect the thin outer wires of the pair of electroluminescent cables. An electrically conducting jumper is disposed within an insulating cap so as to have a pair of forked protrusions for mechanically engaging and electrically connecting together the center conductors of the electroluminescent cables when the cap nests within the base.
U.S. Pat. No. 7,737,633, issued on Jun. 15, 2010 to Y. Zheng, teaches an electroluminescent wire having a continuous base wire that is plated with a metal modified layer. The metal wire is coated with a dielectric layer. The dielectric layer is coated with a luminous layer made of electroluminescent powder to emit light. The luminous layer is coated with a transparent conductive layer. The surface of the conductive layer connects to one to four protective conductive wires and all are enclosed by a fluoroplastics layer. The fluoroplastics layer is enclosed by a plurality of transparent and translucent colorized plastic tubes.
It is an object of the present invention to provide a connector for electroluminescent cables which allows the electroluminescent cables and/or power cords to be joined in electrically-connected in end-to-end relationship.
It is another object of the present invention to provide a connector for electroluminescent cables which eliminates the need for soldering the filaments and conductors together.
It is still another object of the present invention to provide a connector for electroluminescent cables which avoids the need for the complex sleeving of the separate components during the joining of the cables together.
It is still a further object of the present invention to provide a connector for electroluminescent cables which can be easily applied over the electroluminescent cables in a safe, convenient and efficient manner.
It is still a further object of the present invention to provide a connector for electroluminescent cables which avoids any snagging of the connector on exterior surfaces.
It is still a further object of the present invention to provide a connector for electroluminescent cables which has a very small profile.
It is another object of the present invention to provide a connector for electroluminescent cables which is inexpensive and easy to manufacture.
These and other objects and advantages of the present invention will become apparent from a reading of the attached specification and appended claims.
The present invention is a connector for electroluminescent cables. This connector has a first shell having a separating surface positioned in an interior thereof, a first conductive surface positioned in the interior of the first shell on one side of the separating surface, a second conductive surface positioned in the interior of the first shell on an opposite side of the separating surface, and a second shell cooperative with the first shell so as to extend over the interior of the first shell.
The first shell is hingedly connected to the second shell. The second shell is movable between an open position and a closed position with respect to the interior of the first shell.
The first conductive surface includes a first clip that is positioned in the interior of the first shell, a second clip positioned in the interior of the first shell in spaced relation to the first clip, and a conductor extending between the first clip and the second clip so as to electrically connect to the first and second clips. Each of the first and second clips has a sharp edge suitable for penetrating a coating of a wire of the electroluminescent cable.
The second conductive surface includes a clip positioned in the interior of the first shell, a plate positioned in the interior of the first shell, and a conductor extending in electrical connection between the clip and the plate. The plate extends in generally transverse relationship to the clip. The conductor is a surface that extends adjacent a bottom of the interior of the first shell. The second shell has an abutment surface extending so as to be positioned adjacent to the plate when the first and second shells are in the closed position so as to urge a filament of the electroluminescent cable against the plate. The second shell also has a pair of panels arranged in spaced parallel relationship. The first clip is positioned between the pair of panels when the second shell is in the closed position.
A first elastomeric receptacle is positioned at one end of the first shell. The first elastomeric receptacle has an opening therein suitable for allowing one of the electroluminescent cables to pass therethrough. A second elastomeric receptacle is positioned at an opposite end of the first shell. The second elastomeric receptacle has an opening therein suitable for allowing the other of the electroluminescent cables to pass therethrough.
The separating surface extends vertically within the first shell. The separating surface has one end positioned beyond an end of the first and second conductive surfaces and an opposite end positioned beyond an end of the first and second conductive surfaces. Each of the shells and the separating surface are of a non-conductive material.
The present invention is also a connector apparatus that comprises a first electroluminescent cable having a first wire and a second wire therein, a second electroluminescent cable having a first wire and a second wire therein, a body, a first conductive surface positioned in the interior of the body, and a second conductive surface positioned in the interior of the body. The first electroluminescent cable extends through one end of the body into the interior of the body. The second electroluminescent cable extends through an opposite end of the body into the interior of the body. The first wire of the first electroluminescent cable and the first wire of the second electroluminescent cable are electrically connected to the first conductive surface. The second wire of the first electroluminescent cable and the second wire of the second electroluminescent cable are electrically connected to the second conductive surface.
The body has a first shell and a second shell hingedly connected to the first shell. These shells are movable between an open position and a closed position.
The first conductive surface includes a first clip positioned in the interior of the body, a second clip positioned in the interior of the body in spaced relation to the first clip, and a conductor electrically connecting the first slip to the second clip. The first wire of the first electroluminescent cable is electrically connected to the first clip. The second wire of the second electroluminescent cable is electrically connected to the second clip. Each of the first and second clips has a sharp edge penetrating a coating of the wire so as to electrically connect the wires to the respective clip.
The second conductive surface includes a clip positioned in the interior of the body, a plate positioned in the interior of the body in spaced relationship to the clip, and a conductor electrically connecting the clip to the plate. The second wire of the first electroluminescent cable also electrically connected to the clip. The second wire of the second electroluminescent cable is electrically connected to the plate. The second wire of the second electroluminescent cable includes a pair of filaments each having a surface juxtaposed against the plate.
A separating surface is positioned in the body. The first wire of the first electroluminescent cable and the first wire of the second electroluminescent cable extend along one side of the separating surface. The second wire of the first electroluminescent cable and the second wire of the second electroluminescent cable extend along an opposite side of the separating surface.
A first elastomeric receptacle is positioned at the one end of the body. This first elastomeric receptacle has an opening therein. The first electroluminescent cable extends through the opening of the first elastomeric receptacle. A second elastomeric receptacle is positioned at the opposite end of the body. The second elastomeric receptacle has an opening therein. The second electroluminescent cable extends through the opening of the second elastomeric receptacle.
As used herein, the term “electroluminescent cable” can refer to either the electroluminescent cable which is to be illuminated and/or the power line to an electroluminescent cable. As such, the connector apparatus can be utilizes so as to join a pair of illuminatable electroluminescent cables together in end-to-end relationship or it can be used to join an illuminatable electroluminescent cable to a suitable power line for the electroluminescent cable.
This section is intended to describe, with particularity, the preferred embodiment of the present invention. It is understood that modifications to this preferred embodiment can be made within with the scope of the present invention without departing from the true spirit of the invention. As such, this section should not to be construed, in any way, as limiting of the broad scope of the present invention. The present invention should only be limited by the following claims and their legal equivalents.
The body 16 is formed of a first shell 32 and a second shell 34. A hinge 36 connects the first shell 32 to the second shell 34. Hinge 36 allows the second shell 34 to be movable between an open position (as shown in
A separating surface 40 is positioned within the interior of the body 16. In particular, the separating surface 40 will be positioned within the interior of the first shell 32 so as to extend vertically upwardly generally at a center of the first shell 32. The separating surface 40 is also formed of a nonconductive polymeric material. The separating surface 40 serves to separate the wires of the electroluminescent cables 12 and 14. In particular, as can be seen in
As will be described hereinafter in association with
The second conductive surface 20 includes a clip 50 and a plate 52 along with a conductor 54. The clip 50 is similar in structure to the clips 42 and 44. As such, it will have a sharp edge that can penetrate through the coating of the second wire 24 of the first electroluminescent cable 12. The plate 52 extends in a generally horizontal orientation transverse to the clip 50. As such, the plate 52 provides a surface so as to electrically connect with the second wire 28 of the second electroluminescent cable 14. It can be seen in
The second shell 34 has several structures formed on the interior thereof which cooperate with the structures associated with the first shell 32 so as to facilitate the electrical connections between the wires of the first and second electroluminescent cables. In particular, there is an abutment surface 60 which extends from the interior of the second shell 34. Abutment surface 60 will bear against the pair of filaments associated with the second wire 28 of the second electroluminescent cable 14 so as to urge such filaments into electrical connection with the plate 52. Additionally, the second shell 34 includes a first pair of panels 62 and a second pair of panels 64. Each of the panels of the first and second pairs will be arranged in spaced relationship. As such, when the second shell 34 is closed over the first shell 32, the first pair of panels 62 will reside on opposite sides of the first clip 42 so as to urge the first wire 22 downwardly into the clip 42. This will automatically cause the sharp edges to the clip 42 to penetrate the coating of the first wire 22 so as to facilitate the electrical connection. A similar action occurs with respect to the second pair of panels 64 in association with the clip 50 and the second wire 24. A third pair of panels 66 are positioned on the interior of the second shell 34. Once again, when the second shell 34 is closed upon the first shell 32, the pair of panels 66 will be positioned on opposite sides of the clip 44 so as to urge the first wire 26 into the sharp edges of the clip 44.
The first elastomeric receptacle 80 and the second elastomeric receptacle 82 can be formed of a rubber material. These elastomeric receptacles 80 and 82 provide additional strength in maintaining the electroluminescent cables 12 and 14 within the connector apparatus 10. These elastomeric receptacles 80 and 82 also present a cleaner appearance at the respective ends of the body 16. The elastomeric receptacles 80 and 82 also provide an amount of liquid resistance. The elastomeric receptacles 80 and 82 can also be provided so as to adapt to the various sizes of electroluminescent cables. It should be noted that the smallest electroluminescent cable is approximately 0.9 millimeters in diameter while the largest electroluminescent cable is 5 millimeters in diameter. The openings at the ends of the body 16 will be of a size that can accommodate up to 5 millimeter diameter electroluminescent cables without the need for the elastomeric receptacles 80 and 82. The elastomeric receptacles 80 and 82 facilitate the ability to adapt smaller electroluminescent cables within the a large openings at the ends of the body 16.
Various types of clip and plate configurations can be made within the scope of the present invention. The various types of configurations of clips and plates can be adapted to the particular size of the core of the wires of the electroluminescent cables. Additionally, it should be noted that it is possible to introduce glue or epoxy within the body 16 so as to further seal the wires of the electroluminescent cables therein.
Through the use of the present invention, an easy and quick connection between the wires of the electroluminescent cables can be achieved. It is only necessary to split the first electroluminescent cable into the separate wires 22 and 24. The separate wires 22 and 24 will extend on opposite sides of the separating surface 40. Each of the separate wires 22 and 24 can be placed into the V-shaped openings of the conductive surfaces. The second electroluminescent cable 14 can be introduced into the opposite end of the body 16. The pair of filaments associated with the second wire 28 are separated from the wire 26. The wire 26 can be placed into the clip 44 of the first conductive surface 18 and the pair of the filaments can be placed upon the plate 52 of the second conductive surface 20. The second shell 34 can then be closed upon the first shell 32 so that the surfaces within the second shell 34 will urge the respective wires downwardly into the clips of the first and second conductive surfaces and also cause the pair of filaments to reside in electrical connection with the plate 52. As such, a proper, easy and effective electrical connection is established between the wires of the first and second electroluminescent cables.
The foregoing disclosure and description of the invention is illustrative and explanatory thereof. Various changes in the details of the illustrated construction can be made within the scope of the appended claims without departing from the true spirit of the invention. The present invention should only be limited by the following claims and their equivalents.
The present application claims priority from U.S. Provisional Patent Application Ser. No. 61/550,008, filed on Oct. 21, 2011, and entitled “CONNECTOR FOR ELECTROLUMINESCENT CABLE”.
Number | Name | Date | Kind |
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5820404 | Chishima et al. | Oct 1998 | A |
6837737 | Baier et al. | Jan 2005 | B2 |
6932639 | Woodruff | Aug 2005 | B2 |
7285012 | Wada et al. | Oct 2007 | B2 |
7737633 | Zheng | Jun 2010 | B2 |
8246361 | Dennes et al. | Aug 2012 | B2 |
20050152126 | Hadar | Jul 2005 | A1 |
20050213313 | Baumberg et al. | Sep 2005 | A1 |
20070249204 | Petersen et al. | Oct 2007 | A1 |
20080265767 | Baumberg et al. | Oct 2008 | A1 |
20090258533 | Dennes et al. | Oct 2009 | A1 |
Number | Date | Country | |
---|---|---|---|
61550008 | Oct 2011 | US |