GB2445976A - Christmas light string with socket for connecting a further light string - Google Patents

Christmas light string with socket for connecting a further light string Download PDF

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Publication number
GB2445976A
GB2445976A GB0701407A GB0701407A GB2445976A GB 2445976 A GB2445976 A GB 2445976A GB 0701407 A GB0701407 A GB 0701407A GB 0701407 A GB0701407 A GB 0701407A GB 2445976 A GB2445976 A GB 2445976A
Authority
GB
United Kingdom
Prior art keywords
light string
christmas light
plug
cord
socket
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
GB0701407A
Other versions
GB0701407D0 (en
Inventor
Chu-Cheng Chang
Cheng-Fen Chang
Chen-Hsien Chang
Chen-Tao Chang
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to GB0701407A priority Critical patent/GB2445976A/en
Publication of GB0701407D0 publication Critical patent/GB0701407D0/en
Publication of GB2445976A publication Critical patent/GB2445976A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/06—Arrangement of electric circuit elements in or on lighting devices the elements being coupling devices, e.g. connectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S4/00—Lighting devices or systems using a string or strip of light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S4/00—Lighting devices or systems using a string or strip of light sources
    • F21S4/10—Lighting devices or systems using a string or strip of light sources with light sources attached to loose electric cables, e.g. Christmas tree lights
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/02—Arrangement of electric circuit elements in or on lighting devices the elements being transformers, impedances or power supply units, e.g. a transformer with a rectifier
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R27/00—Coupling parts adapted for co-operation with two or more dissimilar counterparts
    • H01R27/02—Coupling parts adapted for co-operation with two or more dissimilar counterparts for simultaneous co-operation with two or more dissimilar counterparts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2121/00—Use or application of lighting devices or systems for decorative purposes, not provided for in codes F21W2102/00 – F21W2107/00
    • F21W2121/04—Use or application of lighting devices or systems for decorative purposes, not provided for in codes F21W2102/00 – F21W2107/00 for Christmas trees

Abstract

A Christmas light string includes a plug 10, a power socket 31 on a first cord, a second cord extending from the plug and a plurality of lamps 60 electrically connected in series or parallel and mounted along the second cord. An adapter 50 provides the necessary voltage conversion for the lamps. Another Christmas light string can be plugged into branch socket 31, see figure 3. Hence, a number of Christmas light strings can be assembled together to form a lighting unit having an increased length.

Description

CHRISTMAS LIGHT STRING WITH SOCKET
FOR CONNECTING TO ANOTHER CHRISTMAS LIGHT STRING
BACKGROUND OF THE INVENTION
1. Field of Invention
The invention relates to lighting devices for Christmas and more particularly to a Christmas light string having a socket for electrically connecting to another Christmas light string so that a number of Christmas light strings can be assembled together to form a lighting unit having an increased length.
2. Description of Related Art
There have been numerous suggestions in prior patents for Christmas light string.
For example, U.S. Pat. No. 6,344,716 describes a Christmas light string having a plurality of parallel group devices to assure that voltage drop across each five-lamp group is always approximately three volts regardless of the number of bulbs missing, burned out, or whose contacts are degraded.
Further, decorating a Christmas tree with one or more Christmas light strings is well known. Typically, a Christmas light string comprises a plug, an adapter, a plurality of lamps, and a cord connecting them together. In use, the plug is inserted into a wall outlet for electrically connecting to 110 AC volts or 220 AC volts power. The AC power is rectified by the adapter to convert into DC having a voltage of, for example, 24 volts.
And in turn, the lamps are powered by 24 DC volts.
However, whether electrically connected in series or parallel, the number of lamps, mounted on a Christmas light string is limited due to the low voltage DC source.
And in turn, it limits the length of the Christmas light string. It is often that a person has to prepare a number of Christmas light strings and connect each of them to an independent power source (e.g., a wall outlet or a power strip) in order to increase length if such need arises. However, this not only increases the cost due to, for example, the buying of power strips but also is not practical if there is only one wall outlet available. Thus, the need for improvement still exists.
SUMMARY OF THE INVENTION
It is therefore one object of the invention to provide a Christmas light string having a power socket for electrically connecting to another Christmas light string so that a number of Christmas light strings can be assembled together to form a lighting unit having an increased length.
The above and other objects, features and advantages of the invention will become apparent from the following detailed description taken with the accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. I is a perspective view of a preferred embodiment of Christmas light string according to the invention; FIG. 2 is a schematic side elevation of FIG 2; and FIG. 3 is a view similar to FIG. 2 showing three Christmas light strings being connected together to form a lighting unit according to the invention.
DETAILED DESCRIPTION OF THE INVENTION
Referring to FIGS. I and 2, a Christmas light string 100 in accordance with a preferred embodiment of the invention comprises a standard plug 10 including an insulative enlargement 11 and two blades 12 projecting from a front face of the enlargement 11; a power socket 31 including two holes 311 on a rear face of its insulative enlargement; and a first cord 20 interconnecting the plug 10 and the socket 31 and being electrically connected to the blades 12.
The Christmas light string 100 further comprises a second cord 40 extending from the plug 10 and being electrically connected to the blades 12 (i.e., the second cord 40 and the first cord 20 being electrically connected in parallel); an adapter 50 disposed in a position of the second cord 40 proximate the plug 10; and a plurality of lamps 60 electrically connected in series or parallel along the second cord 40 and being distal the plug 10.
While the plug 10 has two blades 12 as shown in the preferred embodiment, it is understood that the plug 10 can have three blades 12 in other embodiments without departing from the scope of the invention. Likewise, while the socket 31 has two holes 311 as shown in the preferred embodiment, it is understood that the socket 31 can have three holes 311 in other embodiments without departing from the scope of the invention.
In one configuration of use, the plug 10 is inserted into a wall outlet (not shown) for electricaUy connecting to 110 AC volts or 220 AC volts power. The AC power is rectified by the adapter 50 to convert into DC having a voltage of, for example, 24 volts. And in turn, the lamps 60 are powered by 24 DC volts.
Referring to FIG. 3, in another configuration of use where a lighting unit having a length longer than the Christmas light string 100 is desired, after electrically connecting the Christmas light string 100 to the wall outlet as stated above, a person may electrically onnect an identical second Christmas light string 100' to the Christmas light string 100 by inserting the plug 10' into the socket 31 and further electrically connect an identical third Christmas light string 100" to the second Christmas light string 100' by inserting the plug of the third Christmas light string 100" into the socket of the second Christmas light string 100".
Preferably, light produced by the lamps 60 is substantially the same as that produced by the lamps 60' because, as stated above, the second cord 40 and the first cord 20 are electrically connected in parallel.
While the invention herein disclosed has been described by means of specific embodiments, numerous modifications and variations could be made thereto by those skilled in the art without departing from the scope and spirit of the invention set forth in the claims.
Attention is directed to all papers and documents which are filed concurrently with or previous to this specification in connection with this application and which are open to public inspection with this specilicatjon, and the contents of all such papers and documents are incorporated herein by reference.
All of the features disclosed in this specification (including any accompanying claims, abstract and drawings), and/or all of the steps of any method or process so disclosed, may be combined in any combination, except combinations where at least some of such features and/or steps are mutually exclusive.
Each feature disclosed in this specification
(including any accompanying claims, abstract and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise. Thus, unless expressly stated otherwise, each feature disclosed is one example only of a generic series of equivalent or similar features.
The invention is not restricted to the details of the foregoing embodiment(s). The invention extends to any novel one, or any novel combination, of the features
disclosed in this specification (including any
accompanying claims, abstract and drawings), or to any novel one, or any novel combination, of the steps of any method or process so disclosed. L. -

Claims (1)

  1. WHAT IS CLAIMED IS: 1. A Christmas light string comprising: a plug; a
    power socket; a first cord electrically interconnecting the plug and the power socket; a second cord extending from the plug and being electrically connected thereto; an adapter proximate the plug and mounted in the second cord; and a plurality of lamps electrically connected in series or parallel and mounted along the second cord and distal the plug, wherein the power socket is adapted to electrically connect to the plug of a second Christmas light string.
GB0701407A 2007-01-25 2007-01-25 Christmas light string with socket for connecting a further light string Withdrawn GB2445976A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0701407A GB2445976A (en) 2007-01-25 2007-01-25 Christmas light string with socket for connecting a further light string

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0701407A GB2445976A (en) 2007-01-25 2007-01-25 Christmas light string with socket for connecting a further light string

Publications (2)

Publication Number Publication Date
GB0701407D0 GB0701407D0 (en) 2007-03-07
GB2445976A true GB2445976A (en) 2008-07-30

Family

ID=37872750

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0701407A Withdrawn GB2445976A (en) 2007-01-25 2007-01-25 Christmas light string with socket for connecting a further light string

Country Status (1)

Country Link
GB (1) GB2445976A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114361846B (en) * 2022-01-10 2022-08-05 广东森派科技有限公司 Linear lamp strip connector and connecting method thereof

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1172602A1 (en) * 2000-07-14 2002-01-16 King Ltd. Neon Icicle light apparatus and associated methods

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1172602A1 (en) * 2000-07-14 2002-01-16 King Ltd. Neon Icicle light apparatus and associated methods

Also Published As

Publication number Publication date
GB0701407D0 (en) 2007-03-07

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)