This disclosure relates to electrical outlets and plugs.
Electrical outlets and plugs have been a staple of modern life for many years. Virtually all consumer and business appliances, such as computers, televisions, refrigerators, washers, dryers, and so forth, get their power through electrical outlets. Most modern plugs and outlets employ a three prong design with one prong for live power, one prong for neutral, and one prong for grounding. Similar plugs and outlets have only two prongs omitting the grounding prong. Electrical outlets and prongs are employed to carry many different levels of power, such as 110 volts, 220 volts, and 480 volts.
There is provided systems and methods for a reorientable electrical outlet. In one embodiment, a system includes a housing configured to be coupled to an electrical power source, the housing having a first rotation stop, and an electrical plug receptacle, mountable within the housing, the insert having a second rotation stop, the first and second rotation stops configured to cooperate with each other to limit rotation of the insert within the aperture at a number of degrees, wherein the plug receptacle is configured to receive an electrical plug.
One or more the embodiments set forth below is directed to reorientable electrical outlets. Reorientable electrical differ from traditional, fixed, electrical outlets, by allowing a user to rotate the female receptacle(s). Such rotatable female receptacles may allow plug-in items with unusual shapes (e.g., plug-in transformers, “wall-warts,” cell phone chargers, night lights, plug-in room fresheners) to be plugged into a receptacle and then be rotated to prevent the device from blocking access to another receptacle.
In some embodiments, portions of the reorientable electrical outlet 100 may be formed of nonconductive material such as plastic or polyvinyl chloride (PVC). The nonconductive portions may also be formed of nylon or any other suitable supporting material. In some embodiments, portions of the outlet 100 may be manufactured using resins containing high impact amorphous polycarbonate (PC) and acrylonitrile-butadiene-styrene (ABS) terpolymer blends, such as Cycoloy.™.CY6120 from GE Plastics. By varying the ratio of PC to ABS in the resin, the outlet 100 may be tailored for residential or industrial use. Further, the overall cost of the outlet 100 may be reduced by employing regrind or powdering techniques. Preferably, no more than 15% regrind is employed. In some embodiments, portions of the reorientable electrical outlet 100 may be formed of conductive material, such as steel, aluminum, or any other suitable conductive supporting material. For example, the receptacle housing 106, the plate 102, the faceplate 104, and other portions of the outlet 100 may be made of conductive metal, and those portions may be connected to an electrical ground.
The holes 108A and 108B accommodate a stop ring 120A and a stop ring 120B (not shown in
A female electrical receptacle 112A and a female electrical receptacle 112B fit within the respective holes 108A and 108B. The female electrical receptacles 112A and 112B include an outer surface 116A and an outer surface 116B, respectively. In some embodiments, the female electrical receptacles 112A and 112B may extend through the holes 108A and 108B such that the outer surfaces 116A and 116B may be substantially on the same plane as the faceplate 104. In some embodiments, the outer surfaces 116A and 116B may slightly extend beyond the plane of the faceplate 104.
Each of the female electrical receptacles 112A and 112B may also include one or more reorientable stop tabs 202 (not shown in
The outlet 100 also includes a conductor plate 126. The conductor plate 126 includes a number of conductors, such as a conductor 128, a conductor 130, and a conductor 132. The conductor plate 126 is electrically connected to an electrical supply (e.g., wires in an electrical outlet box) such that the electrical conductors 128-132 may be electrically connected to the electrical supply. In some embodiments, the conductor plate 126 may be a printed circuit board (PCB), and the conductors 128-132 may be formed as conductive traces on the conductor plate 126. In some embodiments, the conductors may be PCB traces, bus bars, wires, or other form of electrical conductor.
The electrical conductor 128 is electrically connected to a flexible conductor 134 (e.g., a wire). Similarly, the electrical conductors 130 and 132 are electrically connected to flexible conductors 136 and 138. The flexible conductors 134-138 are coupled between the electrical conductors 128-132 and plug contacts 140-144. In particular, the flexible conductor 134 may connect electrical conductor 128 and the neutral electrical contact 140, the flexible conductor 136 may connect the electrical conductor 130 and the live electrical contact 142, and the flexible conductor 138 may connect between electrical conductor 132 and the ground electrical contact 144. In some embodiments, the flexible conductors 134-138 are wires disposed through the stop ring 120 into the female receptacle 112.
The plug contacts 140-144 are sized and arranged within the female electrical receptacle 112A in a manner that allows an electrical plug to be inserted into them. When the electrical plug is inserted, the plug connects to the plug contacts 140-144. The female electrical receptacle 112B may also include a neutral plug contact 146, a live plug contact 148, and a ground plug contact 150 that are substantially identical to the electrical contacts 140-144. In some embodiments, the outlet 100 may also be made of conductive material that is connected to ground, and the ground electrical contacts 144 and 150 are electrically connected to the outlet 100 itself (e.g., rather than being grounded via the flexible conductor 138).
In an alternate embodiment of the reorientable electrical outlet 100, the female electrical receptacles 112A and 112B may be two prong receptacles. This type of a two-pronged receptacle does not employ the ground electrical components (e.g., the ground electrical contact 150, the flexible conductor 138, because the electrical conductor 132) as the ground plug contact 144 is absent.
The female electrical receptacles 112A and 112B are capable of being rotatably reoriented within the stop rings 122. As the female electrical receptacles 112A and 112B are rotated, the reorientable stop tabs 202 travels circumferentially across the top surfaces 122 until the reorientable stop tabs 202 come into contact with the fixed stop tabs 124. Contact between the reorientable stop tabs 202 and the fixed stop tabs 124 limits the rotation of the female electrical receptacles 112A and 112B.
In the illustrated example, the reorientable female receptacles 112A and 112B are configured such that they may be rotated approximately ¼ turn clockwise or counterclockwise from the depicted initial position. In some embodiments, the fixed stop tabs 124 and the reorientable stop tabs 202 may be configured to limit the rotation of the female receptacles 112A and 112B to any number of degrees, turns, or fractions thereof. For example, a single stop tab 124 and a single reorientable tab 202 may allow for nearly a full total turn. In another example, a reorientable stop tab 202 may be located between two fixed stop tabs 124 that are located at positions 90 degrees apart allowing the female electrical receptacle 112A to be rotated approximately ¼ turn total (e.g., approximately ⅛ turn either way from the illustrated initial position). In some embodiments, the fixed stop tabs 124 and the reorientable stop tabs 202 may be configured to limit the rotation of the female electrical receptacle 112A in an asymmetrical manner. For example, the outlet may be constructed to allow the female electrical receptacle 112A to rotate ½ turn in one direction from an initial position, but only ¼ turn from the initial position in the other direction.
Although illustrated in
In some embodiments, the limits of the range of motion for the female electrical receptacle 112A may be extended beyond one turn through the use of multiple concentric stop rings. For example, one or more intermediate stop rings may be concentrically disposed between the female electrical receptacle 112A and the stop ring 120A. In this way, up to approximately one full turn may be permitted between the female electrical receptacle 112A and an intermediate stop ring, and up to approximately one full turn may be permitted between the intermediate stop ring and the stop ring 120A, thus allowing up to approximately two total rotations in either direction. In some embodiments, other configurations of stop rings (e.g., the stop ring 120A, or the concentric stop rings), the reorientable stop tabs 202, and/or the fixed stop tabs 124 may be implemented to create various symmetrical and asymmetrical limits of rotation for a female electrical receptacle, such as the receptacle 112A.
The reorientable female receptacle 502B includes a neutral electrical contact 504B, a live electrical contact 506B, and a ground electrical contact 508B. The neutral electrical contact 504B is connected to a flexible conductor 510B. The live electrical contact 506B is connected to a flexible conductor 512B. The ground electrical contact 508B is connected to a flexible conductor 514B. In some embodiments, the flexible conductors 510A-514A and 510B-514B are wires.
The outlet 500 also includes a neutral post 516A, a neutral post 516B, a live post 518A, a live post 518B, a ground post 520A, and a ground post 520B. The neutral posts 516A and 516B are electrically connected to the neutral leg of an electrical supply. The live posts 518A and 518B are electrically connected to the live leg of an electrical supply. The ground posts 520A and 520B are electrically connected to an electrical ground. The neutral posts 516A and 516B are electrically connected to the neutral electrical contacts 504A and 504B by the flexible conductors 510A and 510B, respectively. The live posts 518A and 518B are electrically connected to the live electrical contacts 506A and 506B by the flexible conductors 512A and 512B, respectively. The ground posts 520A and 520B are electrically connected to the ground electrical contacts 508A and 508B by the flexible conductors 514A and 514B, respectively.
As the reorientable female receptacles 502 are rotated within the outlet 500, the conductors 510-514 are progressively drawn tauter around the body of the receptacle 502. Eventually, the conductors 510-514 may reach their limit of extension and rotation of the receptacle 502 stop. For example, the female electrical receptacle 502A has been rotated counterclockwise approximately ⅛ turn; and, as shown, the conductors 510A-514A are relatively lax. On the other hand, the female electrical receptacle 502B has been rotated clockwise approximately ¼ turn extending the conductors 510B-514B to their limit of extension. The degrees of rotation in the clockwise direction may be different than the number of degrees rotation in the counter-clockwise direction.
In the illustrated embodiment, the female receptacle 502A also includes a pair of reorientable stop tabs 608 and a stop ring 610. As the receptacle 502A is reoriented, the reorientable stop tabs may travel across the outer surface 612 of the stop ring 610. The receptacle can rotate until one the reorientable stop tabs 608 encounters a fixed stop tab (not shown) that is attached to the stop ring. The reorientable stop tabs 608 and the fixed stop tabs may be configured to limit the reorientation of the receptacle 502A, as described above, to prevent over extension of conductors 510-514. In other embodiments, the stop tabs 608 and the stop ring 610 may be omitted. For example, the flexible conductors 510-514 may be employed to limit rotation of the female receptacles 502. In other words, the rotation of the receptacle 502 may stop when one or more of the conductors become fully extended and stops rotation of the receptacle 502.
Although the depicted embodiments of the reorientable electrical outlet 100 and the reorientable electrical outlet 500 include two grounded female electrical receptacles, the outlets 100 and 500 are usable for a variety of female electrical receptacles including those that employ a single receptacle, or more than two receptacles. It should also be recognized that the female electrical receptacles 112A, 112B, 502A, and 502B may be replaced or supplemented by any type of similar female socket that allows proper insertion and contact with a mating male-type conduct of prongs of a male plug. Moreover, outlets 100 and 500 are not limited to use with 110V-220V AC-type or DC-type appliances.
In some embodiments, the concepts of the reorientable electrical outlet 100 are applied to male electrical plugs. For example, a wall transformer may include a reorientable male plug that may allow the transformer to be rotated while plugged into a traditional, fixed outlet. In some embodiments, several reorientable electrical outlets may be arranged into a power strip configuration. In another embodiment, several reorientable electrical outlets are arranged as an outlet expander. For example, three, four, five, six, or other number of reorientable electrical outlets could be arranged in a device that plugs into a single outlet or a traditional two-receptacle wall outlet. In another embodiment, the reorientable electrical outlets 100 and 500 may be located at one or both ends of a power cord. For example, an extension cord may have one or more reorientable electrical outlets (or male plugs) at one or both ends, to allow odd-sized devices to be plugged in, or perhaps to reduce tangling.
Although the embodiments here and have been described in detail, it will be apparent to those skilled in the art that many embodiments taking a variety of specific forms and reflecting changes, substitutions, and alterations can be made without departing from the spirit and scope of the invention. The described embodiments illustrate the scope of the claims but do not restrict the scope of the claims.
This application is a continuation of U.S. application Ser. No. 13/219,865 filed Aug. 29, 2011 and issuing as U.S. Pat. No. 8,210,853 on Jul. 3, 2012, which is a continuation of U.S. application Ser. No. 12/835,722 filed Jul. 13, 2010 and issuing as U.S. Pat. No. 8,007,283 on Aug. 30, 2011, which is a continuation of U.S. application Ser. No. 11/778,948 filed Jul. 17, 2007 and issuing as U.S. Pat. No. 7,753,682 on Jul. 13, 2010.
Number | Date | Country | |
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Parent | 13219865 | Aug 2011 | US |
Child | 13541383 | US | |
Parent | 12835722 | Jul 2010 | US |
Child | 13219865 | US | |
Parent | 11778948 | Jul 2007 | US |
Child | 12835722 | US |