1. Field of the Invention
Embodiments of the present invention relate to a lamp system used in a light string system and, more particularly, to a socket assembly adapted to receive a light assembly, wherein the lamp system is designed such that a remainder of the lights in the light string system remain lit even when one or more individual light assemblies are broken, missing, or not properly seated from associated socket assemblies.
2. Description of the Related Art
Light strings are known in the art. For instance, light strings are predominantly used during the holiday season for decorative purposes, e.g., Christmas tree lights, outdoor holiday lights, and icicles light sets.
Conventional light strings are typically arranged with lights on the strings being electrically connected in series, rather than in a parallel arrangement. Unfortunately, there are disadvantages to designing a light string in series. When a single light bulb is removed from, broken, or improperly seated in a socket, the remaining lights in the series are rendered inoperable. Because each light bulb within its respective socket completes the electrical circuit, when a light bulb is removed, breaks, or is improperly seated in the socket, a gap is created in the circuit, i.e., an open circuit is formed. Therefore, electricity is unable to continue to flow through the circuit. When a “good” or operable light bulb is properly inserted into and thus sits in the socket, the light bulb completes the circuit and allows electricity to flow uninterrupted through the light string.
Embodiments of the present invention relate to a lamp system for use in a light string system. The lamp system comprises a light assembly and a socket assembly. The light assembly comprises a light source, a base in communication with the light source, and a bypass activating system. The socket assembly comprises a socket adapted to receive the light assembly, first and second socket terminals, and a bypass mechanism having a first position and a second position.
When the bypass mechanism is in the first position, current flows from the first socket terminal, through the bypass mechanism, and to the second socket terminal. When the light assembly is inserted into the socket assembly, the bypass mechanism moves into its second position. In the second position, current does not flow through the bypass mechanism, but flows through the lamp system by passing through the light source of the light assembly.
The bypass activating system of the light assembly is adapted to move the bypass mechanism of the socket assembly between the first and second positions.
In an exemplary embodiment, the socket is outfitted with grooves or cutouts along opposing sides. Other opposing sides, e.g., normal to the sides with grooves or cutouts, include the socket terminals. The bypass mechanism housed in the socket comprises a conductive element, a portion of which can be received by the grooves or cutouts of the sides of the socket. The conductive element is in a relaxed state when the light assembly is absent from the socket. In this relaxed state, the conductive element has arms that flex in opposite directions, each of which is in contact with a respective socket terminal. Upon inserting the light assembly into the socket, the bypass activating system, e.g., one or more downwardly extending members, extends from the base contacts a portion of one or both arms of the conductive element. The downwardly extending members can move the arms of the conductive element of the bypass mechanism away from the socket terminals, e.g., inwardly towards the center of the socket. The shape of a pair of downwardly extending members can collectively make, for example and not limitation, an upside-down V-shape. A space between the two downwardly extending members (i.e., the V-shape) receives and contacts the shunt assembly to disable the shunt. As a result, this opens the shunt assembly and permits energy to flow through the light assembly.
In an exemplary embodiment, the bypass mechanism comprises a holder and a conductive element. The conductive element of the bypass mechanism can be carried by the holder. In some embodiments, the holder is symmetrical along at least its length. The holder includes a cutout, which receives the conductive element near its midpoint. The conductive element of the bypass mechanism includes opposing arms that are bent at end, forming generally a “V” shape. When the light assembly is absent from the socket, the arms contact the opposing socket terminals of the socket to shunt the lamp system. When the light assembly is inserted into the socket, at least one downwardly extending member of the bypass activating system contacts one arm of the conductive element of the bypass mechanism to open the shunt and permit energy to flow through the light assembly.
These and other objects, features, and advantages of the present invention will become more apparent upon reading the following specification in conjunction with the accompanying drawings.
The various embodiments of the invention can be better understood with reference to the following drawings. The components in the drawings are not necessarily to scale, emphasis instead being placed upon clearly illustrating the principles of the various embodiments of the present invention. In the drawings, like reference numerals designate corresponding parts throughout the several views.
Although preferred embodiments of the invention are explained in detail, it is to be understood that other embodiments are contemplated. Accordingly, it is not intended that the invention is limited in its scope to the details of construction and arrangement of components set forth in the following description or illustrated in the drawings. The invention is capable of other embodiments and of being practiced or carried out in various ways. Also, in describing the preferred embodiments, specific terminology will be resorted to for the sake of clarity.
The components described hereinafter as making up various elements of the invention are intended to be illustrative and not restrictive. Many suitable components that would perform the same or similar functions as the components described herein are intended to be embraced within the scope of the invention. Such other components not described herein can include, but are not limited to, for example, similar components that are developed after development of the invention.
It must also be noted that, as used in the specification and the appended claims, the singular forms “a,” “an” and “the” include plural referents unless the context clearly dictates otherwise.
Also, in describing the preferred embodiments, terminology will be resorted to for the sake of clarity. It is intended that each term contemplates its broadest meaning as understood by those skilled in the art and includes all technical equivalents which operate in a similar manner to accomplish a similar purpose.
Ranges may be expressed herein as from “about” or “approximately” one particular value and/or to “about” or “approximately” another particular value. When such a range is expressed, another embodiment includes from the one particular value and/or to the other particular value.
By “comprising” or “containing” or “including” is meant that at least the named compound, element, particle, or method step is present in the composition or article or method, but does not exclude the presence of other compounds, materials, particles, method steps, even if the other such compounds, material, particles, method steps have the same function as what is named.
It is also to be understood that the mention of one or more method steps does not preclude the presence of additional method steps or intervening method steps between those steps expressly identified. Similarly, it is also to be understood that the mention of one or more components in a device or system does not preclude the presence of additional components or intervening components between those components expressly identified.
In particular, embodiments of the invention are described in the context of being a lamp system of a light string system, where the lamp system incorporates a bypass or shunt. Embodiments of the invention, however, are not limited to use as a lamp system having a bypass. Rather, embodiments of the invention can be used as a circuit or other system with a mechanical shunt device is needed or desired. For example, although embodiments of the present invention are described as controlling flow through a light assembly when seated/unseated from a socket assembly, it will be understood that the disclosed socket assembly can be used with other insertable assemblies to shunt flow through the insertable assembly.
The light assembly 200 includes the light source 210, which provides light when energized. The light source 210 can be many types of light sources, including a light bulb, light emitting diode (LED), incandescent lamp, halogen lamp, fluorescent lamp, or the like. For example, the light source 210 can be a light bulb, as shown in
In an exemplary embodiment, for example when the light source 210 is a filamented light bulb, the light source 210 can include a globe 212 and a filament 214. The globe 212 is in communication with, and terminates at, the base 220. The globe 212 can be made of conventional translucent or transparent material such as plastic, glass, and the like. The globe 212 includes a hollow interior enabling protection of the filament 214.
When charged with energy, the filament 214 can illuminate the light source 210. A pair of conductors 216 can be in electrical communication with the filament 214. The conductors 216 enable energy into the light source 210 to illuminate the filament 214 and, as a result, the light source 210. The conductors 216 extend down through the base 220, wherein the conductors 216 can be integral with and/or in communication with a pair of lead wires 222 external the base 220. The lead wires 222 can be a pair of wires extending through a bottom of the base 220. A portion of the lead wires 222 that extends through the base can wrap around the base 220, for example, further extending upwardly in the direction of globe 212 adjacent the base 220.
The light assembly 200 further includes the base 220, which can be integrally formed with the light source 210 or a separate element from the light source 210. The base 220 communicates between the light source 210 and an associated socket 310, complimenting and facilitating the seating of the light assembly 200 into the socket 310. The base 220 can incorporate a least one ridge 226 to ensure a snug fit with the socket 310, preventing accidental disengagement of the light assembly 200 from the socket assembly 300 or ensuring proper seating of the light assembly 200 in the socket assembly 300. Other mechanical means can be used with the base 220 and the socket assembly 300 to ensure a tight fit.
For example, the light assembly 200 can also include a locking assembly to secure the light assembly 200 to the socket assembly 300. The locking assembly can be exterior or designed within the socket assembly 300 to fasten the connection of the light assembly 200 to the socket assembly 300 internally. The locking assembly can be external and can include cooperating light assembly elements 224 and socket assembly element 304. These elements 224 and 304 can be formed as a clasp and a lock to insert the clasp. For example, the base 220 of the light assembly 200 can include the element 224 that extends normal to the base 220 and can define an aperture. On the other end of the locking assembly can be the element 304 of the socket 310 to be inserted into the element 224 of the base 220. As the element 304 of the socket 310 is inserted into the element 224 of the base 220, the locking assembly locks the light assembly 200 to the socket assembly 300. Stringent Underwriters Laboratories (UL) requirements may require that lights and sockets fit tightly together, which may decrease the value of a locking mechanism in the lamp system 100. The improvement in injection molding machines now enables the production of sockets and lamp assemblies that have a tight, snug fit.
The bypass activating system 230 of the light assembly 200 can activate and deactivate the bypass mechanism 320 of the socket assembly 300 by moving the bypass mechanism 320 between the first and second positions. The bypass activating system 230 can extend in a downward direction from base 220 of the light assembly 200 to activate the bypass mechanism 320 of the socket assembly 300 upon the proper seating of the light assembly 200 in the socket assembly 300. The bypass activating system 230 can include one or more downwardly extending members. In one embodiment, the bypass activating system 230 can be in a downward “V” shape. Alternatively, the bypass activating system 230 can be one or more extending members 232, or can comprise various other configurations complementary to the configuration of the bypass mechanism 320.
The socket assembly 300 comprises the socket 310 adapted to receive the light assembly 200. The socket 310 defines a cooperatively-shaped aperture 311 to receive at least the base 220 of the light assembly 200. The socket 310 can also be adapted to receive the whole of the bypass activating system 230 of the light assembly 200. The socket 310 can be arranged in many shapes and sizes, but the socket 310 should be of a shape to conveniently receive the light assembly 200.
The socket 310 includes a pair of socket terminals 312. The socket terminals 312 can be located on opposing inner sides of the socket 310. The socket 310 further includes a pair of terminal wires 314 extending to the exterior to allow energy to enter and exit the socket 310. Each socket terminal 312 can be essentially an extension of each respective terminal wire 314. The terminal wire 314 extends through the bottom of the socket 310 to ultimately connect to an electrical source. Therefore, the electrical current is introduced into the socket 310 by one of the terminal wires 314 and conducted either through the bypass mechanism 320, if the bypass mechanism 320 is in the first position, or through lead wires 222 to the filament 214 to illuminate the light bulb 210, if in the second position. Regardless of path, the current can flow to the other of the lamp systems 100 of the light string.
The bypass mechanism 320 of the socket assembly 300 includes a conductive element 322, which rests in the socket 310. The conductive element 322 has a first position and a second position corresponding to the first and second positions of the bypass mechanism 320.
For example and not limitation, the bypass mechanism 320 incorporates the conductive element 322, such that an electric circuit extends from a power source, such as for example a power outlet, to the left terminal wire 314, through the left socket terminal 312 across conductive element 322, and ultimately to the right terminal wire 314 via the right socket terminal 312.
In some embodiments, the conductive element 322 can be a spring mechanism 324. The socket 310 is dimensioned to receive the insertion of the bypass activating system 230, which can force portions of the single spring 324 together, not apart, when the light assembly 200 is inserted into the socket 310. In other words, the bypass activating system 230 can cause the conductive element 322 to spring inwardly, toward the center of the socket 310. The single spring 324 springs apart, not together, when the light assembly 200 is removed from the light socket 310.
When the light assembly 200 is inserted into the socket 310, the bypass activating system 230 pushes at least one side of the conductive element 322 away from the socket terminal 312 to “open” the circuit across 322. This disables the electrical connection that the bypass mechanism 320 created, and the circuit is closed via the bulb 210, as opposed to the conductive element 322. In an exemplary embodiment, both sides of the conductive element 322 can be disengaged by the bypass activating system 230. The bypass mechanism 320 can maintained in the socket assembly by grooves/cutouts formed within the socket and/or a holder placed in the socket.
The bypass activating system 230 can have one or more pointed or rounded tips that facilitate disconnecting the bypass mechanism 320 from the socket terminals 312. The bypass activating system 230 disables the physical connection of the bypass mechanism 320, thereby eliminating any electrically conductive path for the electrical current to flow, other than through the inserted light assembly 200.
The bypass mechanism 320 permits the removal of one or more light assemblies 200 of the lamp system 100, while maintaining the lighting of the remaining lights of a light string system, which is arranged in electrical series. When a light assembly 200 is missing from a socket 310, the bypass mechanism 320 creates a short circuit, and therefore enables current flow to continue to other lamp systems 100 within a light string. Each socket 310 can have a single current carrying bypass mechanism 320, which pushes away from the socket terminal 312 when the bypass activating system 230 engages the bypass mechanism 320, thereby breaking electrical continuity across the bypass mechanism 320. When the base 220 of the light assembly 200 is fully engaged in the socket 310, the lead wires 222 extending from the base 220 will make electrical contact with the socket terminals 312 completing the electrical circuit. When the light assembly 200 is removed, the bypass mechanism 320 again makes contact with the socket terminals 312, maintaining the electrical connection.
The bypass mechanism 320 has at least two positions—a first position and a second position. The first position bypasses energy flow when a light assembly 200 is burnt, missing, or not properly seated in the socket 310. In the first position, the bypass mechanism 320 extends to make contact with the sides of the socket 310, the socket terminals 312. As a result, an electrical circuit is created, or a short circuit is formed. This situation arises when the light assembly 200 is missing from or improperly seated in the socket 310. The second position enables energy to flow through the light source 210 to illuminate it. In the second position, the bypass mechanism 320 is removed from electrical communication from at least one side of the socket 310 (at least one of the socket terminals 312). The electrical circuit through the bypass mechanism 320 is disconnected, or an open circuit is formed. This situation typically arises when a light assembly 200 is fully inserted, and thus properly seated, in the socket 310. For instance, the bypass activating system 230 pushes the bypass mechanism 320 together when the light assembly 200 is seated in the socket 310; and the bypass mechanism 320 pushes apart when the light source 210 is removed from the socket 310.
A first exemplary embodiment of the present invention is illustrated in
In an exemplary embodiment, the bypass mechanism 320 is a resilient shaped spring 323 that is secured in the socket 310 by the keyed grooves/cutouts 330. The bypass mechanism 320 is thus placed between the two socket terminals 312 of the socket 310. In some embodiments, one end of the spring 323 can remain in constant contact with one of the socket terminals 312, while the other end of the spring 323 is in contact with the opposing socket terminal 312 when the base 220 the light assembly 200 is absent, missing, or improperly seated in the socket 310. In some embodiments, both ends of the spring 323 can move when the base 220 is inserted and seated in the socket 310. The spring 323 is in a relaxed state when it contacts the opposing socket terminals and is in a compressed state when the bypass activating system 230 contacts and disables the shunting across the socket 310. In some embodiments, the ends can be the arms 327A and 327B of the conductive element 322.
In some embodiments, the downwardly extending member 232 can be an upside-down V-shaped assembly. The downwardly extending member 232, when the base 220 of the light assembly 200 is inserted into the socket 310, breaks the electrical contact between at least one end of the bypass mechanism 320 and the socket terminal 312 it was in contact with. When one or more of the ends of the bypass mechanism 320 is removed from contact with its respective socket terminal 312, an open circuit is created and energy no longer is shunted across the bypass mechanism 320. When the base 220 of the light assembly 200 is removed from the socket 310, the bypass activating system 230 is removed from the socket 310 and the end or ends of the bypass mechanism 320 resiliently returns to contact with the socket terminal(s) 312, enabling energy to bypass across the bypass mechanism 320.
In an exemplary embodiment,
As illustrated in
In an exemplary embodiment, e.g., see FIGS. 3 and 6-7, the shape of the downwardly extending members 232 collectively make, generally, an upside-down V-shape. The V-shaped downwardly extending members contact the bypass mechanism 320 to disable the shunt. As a result, this creates an open circuit across the bypass mechanism 320 and permits energy to flow through the light assembly 200, as illustrated in
In other words,
In an exemplary embodiment, the bypass mechanism 320 comprises both a holder 370 and a conductive element 322. The conductive element 322 can be carried by the holder 370 in the socket 310. In an exemplary embodiment, the holder 370 is symmetrical along at least its length. The holder 370 includes a cutout 372, which receives and secures the conductive element 322 near the approximate midpoint of the conductive element 322.
The conductive element 322 of the bypass mechanism 320 includes opposing arms 374, 376 that are bent in proximity to each end 375, 377, collectively forming generally a “V” shape.
In some embodiments, the conductive element 322 can incorporate a specific shape. The shape of the conductive element 322 provides an integral piece of conductive material, such as copper, that is bent or pressed into a preferred shape. As mentioned, the conductive element 322 includes a pair of arms 374 and 376, which are bent in proximity to each end 375 and 377, respectively. In some embodiments, and as illustrated in
The flat section 378 of the conductive element 375 can be housed or fit into a cutout 372 of the holder 370. In an exemplary embodiment, the cutout 372 is keyed to receive the flat section 378. For example, the shape of the cutout 372 matches the flat section 378. For instance, the cutout can be substantially flat in shape or a straight cutout across the width of the holder 370.
As illustrated in
When the light assembly 200 is absent from the socket 310, the arms 374, 376 of the conductive element 375 contact the opposing socket terminals 312 of the socket 310 to bypass energy across the lamp system 100. When the light assembly 200 is inserted into the socket 310, at least one downwardly extending member 232 of the bypass activating system 230 contacts one arm of the conductive element 322 of the bypass mechanism 320 to open the bypass and permit energy to flow through the light assembly 200.
The holder 370 of the bypass mechanism 320 in the socket 310 has the ability to seal the socket 310. For instance, the holder 370 can protect the socket 310 from its environment. The holder 370 can limit, if not eliminate, moisture, water, and the like from entering the socket 310, e.g., the bottom of the socket 310. Alternatively, the holder 370 can further act as a base support for the bypass mechanism 320.
The holder 370 can be positioned between the two wires 314 and can carry the bypass mechanism 340. The holder 370 is positioned and designed as to not interfere with the bypass activating system 230 engaging the bypass mechanism 320.
In some embodiments, the holder 370 can have a cup-like shape. A bottom of the holder 370 can be substantially flat. The holder 370 includes the slit or cutout 372 for receiving and carrying the conductive element 322. The holder 370 can be made of plastic, and the holder 370 can be made of plastic, polymers, and the like. In some embodiments, the holder 370 can be made via a molding process.
In certain situations it may be desirable to secure the conductive element 375 in the cutout 372 in a more securing manner than that of
The bypassing of the socket of
Likewise, the holder 370 includes a cutout 372 that is keyed to the shape of the wave section 412, as shown in
Like the embodiment shown in
Herein, the use of terms such as “including” or “includes” is open-ended and is intended to have the same meaning as terms such as “comprising” or “comprises” and not preclude the presence of other structure, material, or acts. Similarly, though the use of terms such as “can” or “may” is intended to be open-ended and to reflect that structure, material, or acts are not necessary, the failure to use such terms is not intended to reflect that structure, material, or acts are essential. To the extent that structure, material, or acts are presently considered to be essential, they are identified as such.
While exemplary embodiments of the invention have been disclosed many modifications, additions, and deletions can be made therein without departing from the spirit and scope of the invention and its equivalents, as set forth in the following claims.
This application claims the benefit of U.S. Non-Provisional application Ser. No. 12/959,448, filed 3 Dec. 2010, which claims priority to U.S. Provisional Application Ser. No. 61/285,068, filed 9 Dec. 2009, the entire contents and substance of which are hereby incorporated by reference.
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Parent | 12959448 | Dec 2010 | US |
Child | 13560602 | US |