When working at night, or in dark spaces, it is often difficult to locate items or necessary resources. In one particular example, when working in a location with very limited lighting, whether a darkened room or an outdoor location at night, it is typically very difficult to find electrical receptacles when needed. This is especially troublesome when attempting to find need power, which then can be used for lighting and/or necessary tools. In most cases, these situations require the use of a flashlight or some external lighting source. That said, this is often inconvenient since the flashlight may not be nearby or conveniently located. Additionally, this requires the handling of the flashlight, in addition to a cord and other tools that are being carried.
In these cases, it would be particularly beneficial if lighting components were convenient and available when handing the electrical power cords themselves, so that outlets and power sources could be easily located. Clearly, electrical lighting systems do not solve this problem, since the user is searching for a power source in the first place. Obviously, once power is located and sufficiently supplied, electrical spotlights, work lights, etc. can then be utilized. That said, this often requires use of additional components. More specifically, a work light or spotlight must be located and attached to a receptacle end of the cord. An integrated system would be beneficial, thus avoiding the need for additional components.
In addition, sometimes one has to work in tight spaces that are difficult to light. These spaces are difficult to light with a drop light or the like. In these instances, it would be advantageous to have an instrument that can fit into the space and direct light to the space. In such cases, a light bulb or other light source sending light in all directions around the bulb would be too big to fit into the tight space. In addition, even if it would fit into the space such a bulb would direct light back at the user which again makes it difficult to see past the light to the space. A drop light might shield some of the light but will generally still be bigger than a bare bulb. In other words, a bulb or drop light will effectively blind the user and will also occupy too much of the tight space.
In order to provide a useful tool for locating electrical power sources, a battery-operated lighting source is incorporated into the plug portion of the electrical cord. The battery-operated lighting system is relatively small and self-contained within the plug housing, thus avoiding obstructions with other components and/or other plugs. Further, the battery-operated lighting system is easily operable using a control button located on an outer surface of the plug housing. To provide further utility, this battery operated lighting system is incorporated at the plug-in end of an extension cord, which can then supply power to remote locations. In the extension cord embodiment, the receptacle end may also include a lighting system for use in further illuminating various locations. This lighting system in the receptacle end could be battery operated, or alternatively powered by the electrical power carried within the cord. Again, this receptacle end power lighting system would be easily operated using control buttons located on an outer surface of the receptacle housing.
In addition to the battery operated light being incorporated into one end, the utility of the lighting system is further enhanced by having lighting systems at both ends of an electrical cord. In those situations where an outlet has been located and power is being provided to the cord, additional lighting needs often exist. To address this need, a small light is incorporated into the receptacle end of the cord for use in further locating items. Once power is supplied to the cord, this power is used to supply a switchable light source. To allow easy identification, in one embodiment, the switch is illuminated (i.e. a switch button at the receptacle end is illuminated) and a receptacle end light source can be operated to locate items and/or become familiar with the surrounding. Of course the switch does not have to be illuminated and will still be withing the scope of the invention. This provides an immediate tool for the user, without the need for additional components.
Further objects and advantages of the present invention can be seen from reading the following detailed description, in conjunction with the drawings in which:
The disclosed lighting system can be incorporated in multiple electrical systems and/or electrical devices. In one particular embodiment, the incorporation of lighting features into an extension cord is outlined and discussed below. Those skilled in the art will recognize that the same features and advantages can be implemented in multiple devices. The following description is intended to describe the features and advantages of the present invention, and is not intended to be limiting in any way.
Referring now to
As part of the operating environments generally mentioned above, it should be recognized that the extension cords will be dragged, dropped and/or pulled across many different surfaces. Additionally, the size of plug-in end 20 and receptacle end 40 are important. It may be necessary to pull the extension cord through an opening, or place in a tight area. Thus, the plug-in end 20 and receptacle end 40 should be kept as small as possible. As shown in
Referring now more specifically to
To further illustrate the internal workings of plug-in end 20,
In one embodiment, battery operated lighting system illustrated in
As will be recognized, the plug-in end 20 illustrated in
It will be appreciated that the battery 36 outlined above could be a standard battery, or could easily be rechargeable. Since line power will be present at certain times, there are certain advantages provided by a rechargeable battery. Further, the system could be configured so that the battery 36 is being recharged any time the cord is connected to electrical power. In this way, battery life becomes a very insignificant issue.
As generally discussed above, one embodiment of the present invention further includes a light source incorporated into the receptacle end 40 of an extension cord 10. Referring now to
Referring now to
As a further enhancement, push button 52 is configured to have an embedded light device (such as a light emitting diode, or LED), which will be illuminated whenever power is present. In this way, a user will be able to easily see and locate button 52. Further, it is contemplated that button 52 is a click-on/click-off button which will allow the light to stay on for extended periods of time. Since this is driven by line power, the issues related to battery preservation do not exits.
In addition to the embodiments outlined above, another alternative may include the use of motion sensors to activate the relevant light source. In this embodiment, various types of motion sensors could be included in either the plug end housing or the receptacle end housing, which would then be used to activate or “wake” the cord when moved. The motion sensors could include an accelerometer which will detect movement of the cord end, or could include a hall-effect sensor which would detect the presence of other objects moving adjacent the relevant housing. Once movement is detected, a light within the housing would be activated. This could include the “spot light” itself, the light on the button, or an internal light to help find the cord end. In combination with the other features involved, this motion detection feature provides addition utility for the user.
The clasps 820, 1020, 1120 can be moved along the length of the electrical cord 12 to any position needed. In some instances, the clasps 820, 1020, 1120 can be moved by sliding them along the length of the electrical cord 12. In other instances, the clasps 820, 1020, 1120 can be removed and placed in a new position along the electrical cord 12. It is also contemplated that the clasps could be of different sizes and still be within the scope of the claims of this application. In fact, a clasp could be formed as a hook sized to grasp the electrical cord 12. Such a hook would be sized so as not to damage the electrical cord 12.
It is contemplated that in some embodiments, legs or hooks could be permanently attached to the electrical cord 12 or even to the plug-in end. It is further contemplated that other means of temporary attachment of the legs or the hook could be devised and would be within the scope of the claims of this application.
In summary, an extension cord has lighting incorporated therein to allow a user to illuminate a desired area where the cord is to be used. The extension cord includes an electrical cord having conductor wires configured to carry electrical current, a first housing and a second housing. The first housing is permanently affixed to a first end of the electrical cord. The first housing supports a set of electrical prongs extending from a first substantially flat, outward end surface of the first housing, and is configured to be coupled to an electrical receptacle. The electrical prongs are electrically coupled to the conductor wires within the electrical cord and include a positive prong, a negative prong and a ground prong. The positive prong and the negative prong are arranged parallel to one another. The ground prong is situated equidistant from and below the positive prong and negative prong, The first housing further supports a first light system positioned above the electrical prongs including a first light source, a battery power source and a switch positioned on an upper side of the first housing for selectively powering the first light source. The first light source is positioned near the first substantially flat, outward end surface of the first housing, and near an opening in the first substantially flat, outward end surface. The first light source is aligned to produce a beam of light directed outwardly through a first opening in the first outward end surface of the first housing in a first direction substantially parallel with and in line with a direction of the extending prongs. The light illuminates a desired area projecting out from the first, substantially flat outward end surface of the first housing. The opening in the first outward end surface of the first housing is above the positive prong and the negative prong. The first opening substantially surrounded by the material forming the first housing.
The extension cord also has a second housing permanently affixed to a second end of the electrical cord. The second housing supports a receptacle structure configured to receive electrical prongs comprising a positive receptacle, a negative receptacle and a ground receptacle. The positive receptacle and the negative receptacle are arranged parallel to one another and have receptacle openings in a second substantially flat, outward end surface of the second housing. Also included is the ground receptacle situated equidistant from and below the positive receptacle and negative receptacle. The receptacle structure is electrically coupled to the connector wires such that an electrical connection exists between the receptacle structure and the electrical prongs of the first housing. The second housing further includes a second lighting system substantially within the second housing and positioned above the receptacle structure having a second light source, a second switch situated on an upper side of the second housing, and a power connection. The power connection supplies power from the electrical cord to the second switch so power from the cord can be selectively supplied to the second light source of the second lighting system. The second light source of the second lighting system is positioned near the second substantially flat, outward end surface of the second housing. The second light source is positioned near a second opening in the second substantially flat, outward end surface and aligned to produce beam of light directed outwardly through the second opening in the second substantially flat outward end surface of the second housing in a direction substantially in line with a direction of the receptacle structure. The second opening in the second substantially flat outward end surface of the second housing is substantially surrounded by the material forming the second housing. The second opening is above the positive receptacle and the negative receptacle.
The ground prong is on one side of an imaginary line between the positive prong and the negative prong and the first opening in the first substantially flat outward end surface of the first housing is on the opposite side of the imaginary line between the positive prong or the negative prong. The first housing closely surrounds the first prong, the second prong, the ground prong and the opening in the first substantially flat outward end of the first housing.
The ground receptacle is on one side of an imaginary line between the positive receptacle and the negative receptacle. The second opening in the second substantially flat outward end surface of the second housing is on the other side of the imaginary line between the positive receptacle or the negative receptacle. The second housing closely surrounds the first receptacle, the second receptacle, the ground receptacle and the second opening in the second substantially flat outward end surface of the second housing. Also included in the extension cord is a support for supporting a portion of the electrical cord near the second housing.
In some embodiments of the extension cord, a second battery system is located in the second housing so the second lighting system can be operated using power from the second battery or power from the cord. In some embodiments of the extension cord, battery is rechargeable. In some embodiments of extension cord the second lighting system is powered by electrical current carried by the cord and the second housing further comprises an internal lighting system configured to internally illuminate the second housing when the first housing is connected to an electrical power source. The first housing, in some embodiments, includes a first lens which is positioned in front of the first light source in the first substantially flat, outward end surface of the first housing to provide a controlled beam of light to be emitted from the first housing when the light source is illuminated, In still other embodiments, the second housing includes a second lens which is positioned in front of the second light source in the second substantially flat, outward end surface of the second housing to provide a controlled beam of light when second light source is illuminated.
An upper portion of the first housing has a ridge structure extending upwardly from a shoulder region on both sides of the ridge structure, The upper portion of the ridge structure narrows at a top portion thereof, The light system is contained within the ridge structure and the switch is positioned on an upper portion of the ridge structure. The second housing also has a a ridge structure extending upwardly from a shoulder region of both sides of the ridge structure, with an upper portion of the ridge structure which narrows at a top portion thereof. The second lighting system is contained within the ridge structure and the switch controlling the second lighting system is positioned on the top of the ridge structure.
In some embodiments, of the extension cord the support further includes a clasp removably attached to a portion of the electrical cord. The clasp, in one embodiment, is removably attached to a portion of the electrical cord. Various accoutrements can be attached to the clasp. In one embodiment, at least one leg attached to the clasp. The at least one leg can be bendable, or can be extendable with a telescoping portion. In some embodiments, two legs are attached to the clasp. In other embodiments, three legs are attached to the clasp. In still further embodiments, at least one hook attached to the clasp. In still other embodiments, at least one clip attached to the clasp.
In still further embodiments, the support further includes a magnet for magnetically attaching the support to a ferrous material to hold it in a desired position. A magnet, in one embodiment, is within the second housing for magnetically attaching the second housing to a ferrous material to hold it in a desired position.
In another embodiment, an extension cord with lighting capabilities provides directed light sources from each end of the extension cord, and includes an electrical cord having a plurality of electrical connectors which terminate at a first end and a second end. The plurality of electrical connectors are surrounded by insulating material. The extension cord includes a first housing coupled to the first end of the electrical cord, and a second housing coupled to the second end of the electrical cord. The first housing supports a set of electrical prongs including a positive electrical prong, a negative electrical prong and a ground prong. Each of the electrical prongs extend from a substantially flat first end surface of the first housing and are coupled to one of the electrical connectors within the electrical cord. The first housing further includes a pair of side surfaces positioned adjacent the positive electrical prong and the negative electrical prong. The pair of side surfaces are substantially orthogonal to the substantially flat first end surface. The first housing also has an upper surface extending adjacent to and between the two side surfaces. The upper surface has a pair of shoulder sections adjacent the side surfaces, and a ridge structure extending therebetween which extends above the pair of shoulder sections. A first lighting system is contained within the first housing and includes a battery power source, a first light source and a first switch. The first light source is mounted within a first opening in the first substantially flat end surface of the first housing at a position near the first substantially flat end surface and above the positive electrical prong and the negative electrical prong and opposite the ground prong such that it is contained within the ridge structure. Light from the first light source is directed away from the substantially flat first end surface in a direction substantially parallel with direction in which the set of electrical prongs extend. the first substantially flat end surface lighting system is selectively operable by a user operating the switch of the first lighting system which is positioned on an outer surface of the first housing.
The electrical extension cord also includes a second housing coupled to the second end of the electrical cord. The second housing supports a set of electrical receptacles comprising a positive electrical receptacle, a negative electrical receptacle and a ground receptacle. Each of the electrical receptacle is positioned within a substantially flat second end surface of the second housing and coupled to one of the electrical connectors within the electrical cord. The second housing also has a pair of side surfaces positioned adjacent the positive electrical receptacle and the negative electrical receptacle, with the pair of side surfaces being substantially parallel with one another. The second housing also includes an upper surface extending adjacent to and between the two side surfaces. The upper surface has a pair of shoulder sections adjacent the side surfaces and a ridge structure extending therebetween which extends above the pair of shoulder sections in a direction away from the set of electrical receptacles.
A second lighting system is contained within the second housing and includes a second power source, a second light source and a second switch. The second light source is mounted within a second opening in the second substantially flat end surface of the second housing at a position above the positive electrical receptacle and the negative electrical receptacle, and opposite the ground receptacle such that it is contained within the ridge structure. Light from the second light source is directed away from the second substantially flat end surface of the second housing in a direction substantially perpendicular to the second end surface of the second housing. The second lighting system is selectively operable by a user operating the second switch of the second lighting system which is positioned on an outer surface of the second housing. The first housing and the second housing are integrally connected to the electrical cord so that all components of the housing and insulating material are coupled to one another.
In one embodiment, the second power source comprises electrical connections to the electrical connectors within the cord so that power is provided to the second lighting system via the connectors hen the first prongs are connected to electrical power. In one embodiment, the electrical cord near the second housing is formed as a gooseneck which is bendable to a number of positions. In still a further embodiment the second housing further comprises a camera in the flat face of the second housing.
Various embodiments of the invention have been described above for purposes of illustrating the details thereof and to enable one of ordinary skill in the art to make and use the invention. The details and features of the disclosed embodiment[s] are not intended to be limiting, as many variations and modifications will be readily apparent to those of skill in the art. Accordingly, the scope of the present disclosure is intended to be interpreted broadly and to include all variations and modifications coming within the scope and spirit of the appended claims and their legal equivalents.
Number | Date | Country | |
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Parent | 15676490 | Aug 2017 | US |
Child | 18103903 | US |