Patent Publication Number: US-11025023-B2

Title: Smart quick connect device for electrical fixtures

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
     This disclosure relates to U.S. Pat. No. 7,462,066 filed Mar. 20, 2007; U.S. Pat. No. 7,192,303 filed Dec. 2, 2004; and U.S. Pat. No. 6,962,498 filed Dec. 12, 2001; and to U.S. Patent Application Publication No. 20090280673 filed Dec. 2, 2005; U.S. Provisional Application 62/160,585 filed May 12, 2015; and U.S. Provisional Application 62/308,718, filed Mar. 15, 2016, the contents of all of which are hereby incorporated by reference herein, in their entirety. 
     FIELD OF THE DISCLOSURE 
     The disclosure relates to smart electrical connectors and fixtures, and more particularly to an electrical plug and socket combination enabling tool-less connection and mounting of electrical fixtures at electrical outlets, the connector and/or fixtures including electronic sensors, controls, and/or communication devices. 
     BACKGROUND OF THE DISCLOSURE 
     There are a number of commercially available systems termed ‘smart-home environment’ systems, which can include one or more sensors and network-connected devices. These smart-home devices can sometimes intercommunicate and integrate together within the smart-home environment. The smart-home devices may also communicate with cloud-based smart-home control and/or data-processing systems in order to distribute control functionality, to access higher-capacity and more reliable computational facilities, and to integrate a particular smart home into a larger, multi-home or geographical smart-home-device-based aggregation. 
     Techniques for installing electrical fixtures and appliances such as lighting fixtures and fans on walls or ceilings usually require the assistance of a qualified electrician, and the use of a variety of tools and specialized hardware. The procedure for installing or uninstalling such fixtures can also be relatively time consuming, even when performed by an experienced installer, and can be hazardous. In addition to the need for hand-wiring the necessary electrical connections between the fixture and electrical power supply wiring, the installer must make separate mechanical connections for supporting or suspending the fixture in place. 
     SUMMARY OF THE DISCLOSURE 
     A device for connecting an electrical fixture with electrical power supply wiring, and for mounting the fixture on a support includes a plug, a socket, and a sensing unit for at least one of wirelessly communicating a sensed condition and wirelessly receiving a signal, with the sensing unit electrically coupled to at least one of the plug and socket. The socket includes a socket body having at least one internal cavity therein with an electrically conductive contact terminal disposed within the cavity for establishing an electrical connection between the electrical power supply wiring and the socket. The plug is rigidly fixed to the fixture and insertable into the socket, with the plug having at least one male connector electrically connected to the fixture and engageable with the contact terminal within the socket to establish a circuit between the electrical fixture and the electrical power wiring. A releasable latch is carried on the combination of the plug and the socket for releasably mounting the fixture on the support. 
     In some embodiments, the sensing unit is electrically coupled to the plug, while in other embodiments, the sensing unit is mechanically coupled to the plug. The circuit between the electrical fixture and the electrical power wiring can be established through the sensing unit. 
     In some embodiments, the sensing unit wirelessly communicates a sensed condition. The sensing unit can wirelessly receive a signal. The signal can be a command signal to control the device and/or the associated electrical fixture. The command signal can result from the sensed condition or The command signal can be independent of the sensed condition. 
     In some embodiments, the sensing unit wirelessly receives a signal, which can be a command signal to control the device and/or the electrical fixture. The sensing unit can include a transmitting sensor for receiving at least one of an RF, Wi-Fi, and Bluetooth sensor. 
     The sensing unit can include an environmental sensor for determining an environmental condition. The environmental condition can include at least one of temperature, humidity, smoke, carbon monoxide, motion, and presence. The sensing unit can include a security sensor. The security sensor can include at least one of a security camera, glass breakage detector, motion/presence detector, and/or emergency lighting. 
     In some embodiments, the plug has a plurality of teeth and the socket has a plurality of teeth, with the plurality of teeth of the plug engaging the plurality of teeth of the socket to limit relative rotational movement of the plug and socket. The teeth can be located on opposing faces or on the circumference of the plug and socket. 
     Another aspect of the disclosure relates to a plug for coupling with a socket for a device for connecting an electrical fixture with electrical power supply wiring, and for mounting the fixture on a support, the plug rigidly fixable to the fixture. The plug includes: at least one male connector electrically connected to the fixture and engageable with a contact terminal within the socket to establish a circuit between the electrical fixture and the electrical power wiring; a releasable latch carried on the combination of the plug and the socket for releasably mounting the fixture on the support; and a sensing unit for at least one of wirelessly communicating a sensed condition and wirelessly receiving a signal, with the sensing unit electrically coupled to at least one of the plug and socket. 
     Another aspect of the disclosure relates to a device for connecting an electrical fixture, which includes: a first electrical plug including: a plug body, a plurality of concentric conductive rings connected to the body, a cylindrical post extending along an axis defined by the concentric rings, the post including an axially extending channel and at least one radially extending shaft housing a retaining ball, a plunger movable within the axially extending channel and having a radial profile which pushes the retaining ball to protrude from the axially extending channel in a first position, and which enables the retaining ball to retract into the channel to not protrude in a second position; at least one sensor electrically connected to at least one concentric conductive ring of the plug; an electrical wire having a plurality of conductors, the wire defining proximal and distal opposing ends, a conductor electrically connected to at least one of the concentric conductive rings at the proximal end; and an extension housing connected to the distal end of the conductor, the housing including a socket mateable with a second electrical plug as defined with respect to the first electrical plug, when a second electrical plug is inserted into the socket, the socket including: a channel sized to receive the cylindrical post of the second electrical plug, the channel defining a portion having a radius less than a radius defined by the post and a protruding retaining ball, the channel defining a portion have a radius that is not less than a radius defined by the post and a protruding retaining ball; a plurality of concentric channels mateable with the plurality of concentric rings; a plurality of electrical terminals each disposed proximate a concentric channel and positioned to electrically contact one of the concentric conductive rings when the concentric ring is mated within a concentric channel, at least one of the electrical terminals connected to a conductor of the electrical wire. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       A more complete understanding of the present disclosure, and the attendant advantages and features thereof, will be more readily understood by reference to the following detailed description when considered in conjunction with the accompanying drawings wherein: 
         FIG. 1  is an exploded view of a plug and sensing unit for a smart quick connect device according to the disclosure. 
         FIG. 2  is an exploded perspective view of a plug and sensing unit for a smart quick connect device according to the disclosure. 
         FIG. 3  is an exploded view of a smart quick connect device according to the disclosure. 
         FIG. 4  is an exploded perspective view of a smart quick connect device according to the disclosure. 
         FIG. 5  is perspective view of a plug and sensing unit for a smart quick connect device according to the disclosure. 
         FIG. 6  is perspective view of a plug and sensing unit for a smart quick connect device according to the disclosure. 
         FIG. 7  is a bottom perspective view of the plug and sensing unit of  FIG. 6 . 
         FIG. 8  is a side view of the plug and sensing unit of  FIG. 6 . 
         FIG. 9  is a side view of the plug and sensing unit of  FIG. 6  with the plug and sensing unit upside down. 
         FIG. 10  is a perspective view of the plug and sensing unit of  FIG. 6  with the plug and sensing unit upside down. 
         FIG. 11  is a bottom perspective view of the plug and sensing unit of  FIG. 6 . 
         FIG. 12  is schematic view of the plug and sensing unit of  FIG. 6  showing the electronic circuitry. 
         FIG. 13  is a schematic of one embodiment of the electronic circuits of a sensing unit. 
         FIG. 14  is a schematic of one embodiment of a low voltage power generation circuit of a sensing unit. 
         FIG. 15  is a schematic of one embodiment of a control circuit of a sensing unit. 
         FIG. 16  is a schematic of one embodiment of a high voltage AC control circuit of a sensing unit 
         FIG. 17  is a view of an embodiment of a plug and socket (receptacle) of a quick connect device according to the disclosure. 
         FIG. 18  is a view of the socket of a quick connect device according to the disclosure installed in a standard electric junction box. 
         FIG. 19  is a front view of an embodiment of a face plate according to the disclosure. 
         FIG. 20  is a back view of the face plate of  FIG. 3 . 
         FIG. 21  is a view of the face plate of  FIGS. 3 and 4  installed. 
         FIG. 22  is a front view of a face plate with a face plate centerpiece. 
         FIG. 23  is a front view of the face plate centerpiece of  FIG. 6 . 
         FIG. 24  is a back view of the face plate centerpiece of  FIG. 7 . 
         FIG. 25  is a view of an installed socket and face plate and a separate plug installed on a light fixture. 
         FIG. 26  is a front view of another embodiment of a face plate according to the disclosure. 
         FIG. 27  is a back view of the face plate of  FIG. 10 . 
         FIG. 28  shows some exemplary uses of the socket and plug according to the disclosure. 
         FIG. 29  shows an embodiment of the socket and plug according to the disclosure for use with a light fixture and an embodiment of the socket and plug according to the disclosure for use with a ceiling fan. 
         FIG. 30  is a view of a socket and plug according to the disclosure for use with a ceiling fan installed in a standard electric junction box. 
         FIG. 31  schematically shows the three locking mechanism of the socket and plug for use with a ceiling fan. 
         FIG. 32  is a side view of a combination including a plug, a latching mechanism, a canopy, and a supporting extension. 
         FIG. 33  is an exploded side view of the combination of  FIG. 16 . 
         FIG. 34  is a medial cross section of the combination of  FIG. 16 . 
         FIG. 35  is an exploded side view of a combination including a plug, a latching mechanism, and a supporting extension. 
         FIG. 36  is a side view of a supporting extension with a wire passage. 
         FIG. 37  is a series of alternative embodiments of supporting extensions. 
         FIG. 38  is an exploded view of an assembly of the disclosure including a plug and sensing array contained within a housing, the assembly connected to an electrical fixture. 
         FIG. 39  depicts the assembly of  FIG. 38 , wherein the plug includes additional connections for signal carrying wires. 
         FIG. 40  depicts the assembly of  FIG. 39 , however an alternate housing forms an extended canopy, the housing including a release lever. 
         FIG. 41  depicts a lamp head of the disclosure, the lamp head including a plurality of sensors, the lamp head connectable to a cable of  FIG. 40 . 
         FIG. 42  depicts a lamp head as in  FIG. 41 , however a plug assembly as in  FIG. 39  replaces a supporting wire. 
         FIG. 43  depicts an assembly as in  FIG. 39 , however a two pronged release lever is provided, enabling a centrally disposed supporting wire. 
         FIG. 44  depicts as assembly including a sensing assembly as in  FIG. 43 , and an extension housing enabling connection to a lamp head as in  FIG. 42 , the assembly of  FIG. 44  thereby insertable between a socket and an electrical fixture having a plug of the disclosure. 
         FIG. 45  depicts of the assembly of  FIG. 44 , connected to a socket and an electrical fixture. 
         FIG. 46  depicts the extension housing of  FIG. 44 , configured with sensors. 
         FIG. 47  is a perspective view of the assembly of  FIG. 46  connected to an electrical fixture having a plug of the disclosure. 
         FIG. 48  is a perspective view of a fan/light assembly including a sensor board, sensors, a plug, a release rod, and a lamp lens cooperative with the sensors. 
         FIG. 49  is a perspective view of a socket and sensing unit for a smart quick connect device according to the disclosure. 
     
    
    
     DETAILED DESCRIPTION OF THE DISCLOSURE 
     As required, embodiments are disclosed herein; however, it is to be understood that the disclosed embodiments are merely examples and that the systems and methods described below can be embodied in various forms. Therefore, specific structural and functional details disclosed herein are not to be interpreted as limiting, but merely as a basis for the claims and as a representative basis for teaching one skilled in the art to variously employ the present subject matter in virtually any appropriately detailed structure and function. Further, the terms and phrases used herein are not intended to be limiting, but rather, to provide an understandable description of the concepts. 
     The terms “a” or “an”, as used herein, are defined as one or more than one. The term plurality, as used herein, is defined as two or more than two. The term another, as used herein, is defined as at least a second or more. The terms “including” and “having,” as used herein, are defined as comprising (i.e., open language). The term “coupled,” as used herein, is defined as “connected,” although not necessarily directly, and not necessarily mechanically. 
     The disclosure herein relates to the inventor&#39;s prior work, such as that set forth above in the documents identified in the Related Patents and Applications section, the contents of each of which are herein incorporated in their entirety by reference. 
     A “smart quick connect device” is generally defined as a connector with additional functionality in addition to the traditional capability of providing a connection. A smart quick connect device may include a sensing unit for wirelessly communicating a sensed condition. Alternatively or in addition, a smart quick connect device can include a sensing unit for wirelessly receiving a signal. The signal can be a command signal to control the smart quick connect device and/or the associated electrical fixture. The command signal can be independent of or as a result of the sensed condition. 
     Referring generally to  FIGS. 1-12 , a quick connect device  20  for installing electrical fixtures comprises the combination of a plug  22  and mating socket  24  with a sensing unit  26 . The plug  22  and mating socket  24  of the device  20  function to both establish an electrical connection between an electrical fixture and electrical supply wiring, and mechanically support the fixture on a surface or base, typically a wall, ceiling or floor surface. As used herein, the term “fixture” or “electrical fixture” means any fixture or appliance such as a lighting fixture, ceiling fan, television camera, security device or any other device which is powered by electricity supplied by electrical wiring, and which requires a mechanical connection to support or suspend the fixture. Plug  22  is fixedly secured to an electrical fixture (not shown), while the socket  24  is secured to either the surface (e.g., wall, ceiling or floor) on which the fixture is to be mounted, or to an electrical junction box. 
     The structure, function, and operation of plug  22  and mating socket  24  have already been detailed in, for example, the patents and application incorporated by reference herein. Accordingly, this disclosure will focus on the structure, function, and operation of sensing unit  26 . 
     Although sensing unit  26  is shown connected to plug  22 , sensing unit  26  could be connected to socket  24  as shown in  FIG. 49 . It is believed, however, preferable to connect sensing unit  26  to plug  22  since different sensing unit  26  with different functionality and features could be interchangeably attached to the same plug  22 . This would allow not only the fixture to be changed, but also the sensing unit  26  could be changed. 
     Plug  22 , which receives electricity from socket  24 , is electrically coupled to sensing unit  26  via pins  28 , which insert into receptacles  30 . Each of the receptacles can be provided with a channel  32  for establishing electrical connection with the fixture. Alternatively, sensing unit  26  can be provided with means for establishing an electrical connection with the fixture. 
     Plug  22  has a spindle assembly  34  for releasably mechanically connecting plug  22  to socket  24 . A push button  36 , which extends from the lower end of a barrel  38 , provides a means of actuating spindle assembly  34  using either a finger or a tool. The lower end of barrel  38  is threaded  40  so as to receive a nut  42  (and optionally a locking washer  44 ). Threading  40  with nut  42  secures sensing unit  26  to plug  22 . Spindle assembly  34  can also be used to mount a fixture to the plug  22 . The electrical fixture may be secured to the plug  22  in any of a variety of ways. For example, the fixture may be fixedly attached by or to a guard cover, or directly to the lower threaded section of barrel  38 . Alternatively, the fixture may be secured to a piece of mounting hardware, such as a “hickey” threaded onto the lower end of barrel  38 . In any event, it may be appreciated that the weight of the fixture is transmitted through barrel  38  to spindle  34 , socket  24 , and then to a mounting strap  46 , which in turn is secured to socket  24 . As is well known, mounting strap  46  can be fixed to a junction box, wall or other structure on which the fixture is to be mounted. 
     Sensing unit  26  is provided with one or more sensors  48 ,  50 . Sensors  48  are receiver sensors, for receiving a signal. Non-limiting examples of the signals that can be received are set forth below. Sensors  50  are transmitter sensors, for transmitting a signal. Non-limiting examples of the signals that can be transmitted are also set forth below. Sensors  48 ,  50  can be mounted on any surface of sensing unit  26 , depending on the application. 
     Depending on sensors  48 ,  50 , sensing unit  26  can allow operation of device  20  with a hand held remote using, for example, RF, Wi-Fi, or Bluetooth. Again, depending on sensors  48 ,  50 , environmental conditions such as a temperature sensor, a humidity sensor, smoke and CO sensors, and/or motion/presence detection can be determined. In this regard, sensing unit  26  can be used as part of a security system, with sensors  48 ,  50  being a security camera (with or without motion activation), glass breakage detector, motion/presence detector, and/or emergency lighting (with battery backup). 
     Several different circuit boards for sensing unit  26  were developed that are intended to attach to and integrate with the smart quick connect device  20  and each one has varying amounts of circuitry and function depending upon the intended usage. Exemplary circuits and concepts are now described in general without a distinction of which board exactly contains which function. 
     In general, and as shown in  FIG. 13 , a sensing unit board  52  of the disclosure can be divided into the three different circuits described below, or any number of integrated or discrete circuits: 
     1) Low Voltage Power Generation Circuit (Element  54  of  FIG. 14 ) 
     The purpose of this circuit is to derive a low voltage (for example, 3 to 3.6 v) from the high voltage AC lines. This low voltage is used to power the control circuit described below. Although the disclosure contemplates that any manner in which low voltage is obtained from high voltage AC lines can be used, two different exemplary approaches to generate the low voltage supply are now described. The first uses a mains rated capacitor, a Zener diode and other related components to provide the low voltage supply. Although this approach is simple and can be inefficient, supplying only limited current, it can be sufficient for certain applications. The second approach is a switched mode power supply (SMPS). The SMPS is more complicated, requiring more components but it is more efficient and allows higher levels of power usage by the control logic. 
     2) Control Circuit (Element  56  of  FIG. 15 ) 
     In one embodiment, the control circuit is implemented using a TI MSP430 low power micro-controller. The controller monitors input from various input sources and can then use that information to take actions related to controllable outputs. 
     A partial list of input sources includes, but is not limited to, the following: 
     a. Zero voltage crossing—used to determine when to trigger TRIACs/IGBTs to control power delivered to attached loads 
     b. Communications (WiFi, Bluetooth, nRF24)—used to wirelessly receive incoming commands from remote control of output devices 
     c. microphone—used for room occupancy detection 
     d. motion detection—used for room occupancy detection 
     e. temperature and humidity sensors—used to make heating/cooling changes 
     f. smoke and CO detectors—used to take emergency/warning actions 
     g. glass breakage detectors—used to control security devices 
     A partial list of output targets includes, but is not limited to, the following. These outputs can be activated based upon connected input sources, or by remote commands received from the communications module. 
     A. Triacs/IGBTs . . . used to control fan and lights 
     B. Communications (WiFi, Bluetooth, nRF24) . . . used to transmit status or convey emergency situations 
     C. Security camera: used to capture images when triggered by various input sources 
     D. Emergency backup light: used to provide minimal lighting in emergency situations. 
     3) High Voltage AC Control Circuit (Element  58  of  FIG. 16 ) 
     The circuit which actually throttles the AC power destined for the load (for example, a light, a fan, or a combination light and fan fixture) under the control of the control and communications circuit described above are either TRIACs or IGBTs. These devices are switched on/off at different times during the AC cycle to control how much power is actually passed to the load and determine fan speeds (low to high) and light level (dim to bright). 
     As best seen in  FIGS. 17, 25, 29, and 31-34 , a quick connect device  220  for installing electrical fixtures comprises the combination of a plug  222  and mating socket  224 . The present disclosure contemplates that device  220  can be used with or without sensing unit  26 , which can be located on plug  222  and/or socket  224 . The device  220  functions to both establish an electrical connection between an electrical fixture and electrical supply wiring, and mechanically support the fixture on a surface or base, typically a wall, ceiling or floor surface. As used herein, the term “fixture” or “electrical fixture” means any fixture or appliance such as a lighting fixture, ceiling fan, television camera, security device or any other device which is powered by electricity supplied by electrical wiring, and which requires a mechanical connection to support or suspend the fixture. Plug  222  is fixedly secured to an electrical fixture  226 , while the socket  224  is secured to either the surface (e.g., wall, ceiling or floor) on which the fixture is to be mounted, or to an electrical junction box  228 . 
     Unless otherwise shown or described herein, the structure, function, and operation of plug  222  and mating socket  224  have already been detailed in, for example, the patents and application incorporated by reference herein, and elsewhere herein. Accordingly, this disclosure will focus on the improvements in structure, function, and operation of plug  222  and mating socket  224  as well as other related improvements. 
     One such improvement is the location of teeth  230  on plug  222  and socket  224 . In the related patents and application, these teeth are located on the opposing faces of plug  222  and socket  224 . This arrangement of teeth  230  is shown in  FIGS. 32-34  for comparison purposes. In contrast and as shown in the remaining FIGS., teeth  230  can alternatively be located on the peripheral surfaces of the opposing faces of plug  222  and socket  224 . This has been found to minimize the effects of temperature, humidity, and other environmental conditions in the mating of teeth  230  to rotationally fix plug  222  with respect to socket  224 . In a non-limiting example, each of teeth  230  may be approximately 1 mm in height and approximately 2 mm in width. 
     Irrespective of the location of teeth  230 , the plurality of circumferentially spaced, radial extending indexing teeth  230 , preferably integrally molded into socket  224  and plug  222 , inter-engage or mesh when plug  222  and socket  224  are mated to prevent plug  222  and socket  224  from rotating relative to each other. Prior to teeth  230  engaging, plug  222  and socket  224  are free to rotate relative to each other. With the dual position locking mechanism of plug  222  and socket  224  described later and akin to that disclosed in related application U.S. Patent Application Publication No. 20090280673, in the initial locking position, plug  222  is held a distance away from socket  224  so that relative rotation between plug  222  and socket  224  is possible while plug (with or without the fixture attached to plug  222 ) is held the distance away. In the second locking position, teeth  230  of plug  222  engage teeth  230  of socket  224  to prevent axial and rotational movement of plug  222  with respect to socket  224 . The circumferential arrangement of the teeth enables positioning of an attached plug and associated device at as many radial orientations as there are teeth, throughout a 360 degree range. Socket  24 / 224  and mating plug  22 / 222  can be formed with a body or casing that is fire retardant. 
     By positioning teeth  230  aligned axially and alongside surfaces of socket  224  and plug  222 , a contact surface between socket  224  and plug  222  can be increased by lengthening teeth  230  on each of socket  224  and plug  222 . This additionally helps ensure continued engagement if socket  224  and plug  222  expand or contract, due to temperature, to differing extents. For example, the length of teeth  230  can be determined based upon a maximal difference in relative sizes of socket  224  and plug  222  along the axial direction of the plug and socket. Further, increasing overlap for axially aligned teeth does not result in a change in tooth pitch, whereas increasing overlap radially requires increasing the diameter, or having areas of reduced pitch, which can be more easily affected by an expansion differential between socket  24  and plug  22 . 
       FIG. 18  shows socket  224  installed in a standard electrical junction box  228 . In this embodiment, mounting strap  232  is generally U-shaped and is provided with an aperture  234  on each of its outer extremities or flanges  236  which receives a screw  238  to mount the strap  232 , and thus the entire device  220 , on a suitable mounting surface. In the illustrated embodiment, the spacing between the apertures  234  is selected so that the strap  232  can be affixed to a common electrical junction box  228  formed of metal or plastic and having threaded holes or nuts into which the screws  238  may be driven. The U-shaped configuration of the strap  232  allows the socket  224  to be recessed within the junction box, as illustrated in  FIG. 18 . However, in those applications where it is necessary to mount the socket  224  directly on a wall or ceiling without use of a junction box, a flat strap may be employed. Socket  24  can be secured to the strap  232  by means of screws. However, other techniques may be used to secure the socket  224  to the strap  232 . 
       FIGS. 19-21  depict a face plate  240  that can be used to cover the space in electrical junction box  228  that socket  224  does not cover. Face plate  240  can provide a more aesthetically pleasing appearance and eliminates access to exposed energized parts that are not otherwise protected by socket  224 . This can be particularly useful in situations, which is often the case, in which there will be some time in between installation of socket  224  and plug  222  (with a fixture attached). Although face plate  240  is shown as generally circular, any suitable shape could be used. The edge of face plate  240  can be provided with a rim  242  so that rim  242  is substantially flush with the mounting surface. Face plate  240  is provided with an opening  242  to accommodate socket  224 . To accommodate mounting strap  232 , face plate  240  has a cut out  244  as shown in  FIG. 20  into which flanges  236  recess. Resilient tabs  248  deflect outward and deflect back in to hold face plate  240  to mounting strap  232 . The present disclosure contemplates that means other than resilient tabs  248  can be utilized to releasably hold face plate  240  to mounting strap  232 . 
     At this point, the fixture can be connected to socket  224  via plug  222  for immediate use as shown in  FIG. 25 . As shown in  FIG. 26 , a face plate centerpiece  250  can be attached to socket  224  or face plate  240  to create a cover plate to protect (from painting, dust, etc.) socket  224  and for aesthetic purposes until a later time when the fixture is connected.  FIGS. 23 and 24  show one embodiment of a face plate centerpiece  250 . The front of centerpiece  250  can have a design to match that of face plate  240  so as to provide a continuous or near continuous appearance. The back of centerpiece  250  can be provided with an upstanding, peripheral edge  252  which is received in tight frictional engagement over the lower cylindrical portion of socket  224 . This frictional engagement is sufficient to hold centerpiece  250  in place. Alternatively, or in addition to peripheral edge  252 , centerpiece  250  can have a post  254  that is receiving in central bore  256  of socket  224 . As shown, post  254  is in two portions so as to deflect inward upon insertion into bore  256  and deflect back outward to secure centerpiece  250  to socket  224 . 
     Any of a wide variety of devices can be connected to socket  24 / 224 , including any of a fixed or PTZ (pan tilt zoom) camera; fan; video projector; hanging display which can be illuminated; video display; chandelier; camera housing; smoke detector; video intercom; wall sconce with individual or multiple heads; toys and moving objects; emergency lighting; outdoor lighting; exit sign; decorative lighting; interface to smartphone, tablet, or other computing device; sensing unit as described herein, or other devices or sensors as described herein. 
       FIGS. 26 and 27  shown another embodiment of a face plate  258  according to the disclosure. Face plate  258  is similar to face plate  240  but also has slots  60  that match screw holes  234  on mounting strap  234  so that slots  60  align with screw holes  234 . As a result, screws  238  would secure both socket  224  and face plate  258  to electrical junction box  228 . 
       FIG. 28  schematically shows the simplified installation process of device  20 , regardless of whether the fixture is a ceiling fan or light fixture. After the standard electrical junction box is installed, socket  224  is mounted onto junction box  228  via mounting strap  232  of socket  224 . Optionally, face plate  240  can be installed. At this point, the fixture can be quick-connected into socket  224  via plug  222 . 
     Device  20  allows for safer wiring, installation and removal of light fixtures and ceiling fans. Once the socket and face plate are in place, there are no longer exposed energized parts. Heavy or bulky fixture components no longer have to be supported while making wire connections to the electrical circuit. Installation, connection and maintenance of the fixture are inherently safer because heavy and bulky units do not have to be maneuvered while the socket is being installed, where the installer is typically on a ladder or lift. 
     Regarding the weight handling capacity, the double locking mechanism ensures the socket and plug fitting can bear the load; the double locking mechanism holds up to 200 pounds and has been tested to failure at 900 pounds. However, the load is limited by the capacity of the outlet box, which is normally 35 pounds for ceiling fans or 50 pounds for light fixtures, unless listed and labeled otherwise (e.g., indicated greater weight capacity). 
       FIG. 29  shows the double locking mechanism  62 . The double locking mechanism  62  can be in socket  224 , which can be used for any suitable fixture, or fan socket  124 , which has an additional locking feature that can be beneficial for holding the added weight of a ceiling fan. 
     As shown in  FIGS. 30 and 31 , fan socket  124  has a mounting strap  132  that while sharing the same general function and some features of mounting strap  232 , differs from mounting strap  232 . In this embodiment, mounting strap  132  is generally U-shaped and is provided with an aperture  134  on each of its outer extremities or flanges  136  which receives a screw  138  to affix the strap  132 , and thus fan socket  124  to a common electrical junction box  228  formed of metal or plastic and having threaded holes or nuts into which the screws  138  may be driven. The U-shaped configuration of the strap  132  allows the fan socket  124  to be recessed within junction box  228 , as illustrated in  FIG. 30 . 
     Flanges  136  of mounting strap  132  flare outward and have an arcuate outer curvature  140  that is similar to the curvature for the canopy of ceiling fans. An edge  142  extends from the outer curvature  140  and includes a track  144  for receiving a mounting bracket for the ceiling fan. The track  144 /screw  146  combination provides an additional locking mechanism for increased mechanical support. 
     With reference to  FIGS. 32-37 , cover, or canopy  500 , is provided for safety and aesthetic purposes, and further for the purpose of exposing means for releaseably connecting to a fixture, and particularly to a suspended non-electrical or electrical fixture. Canopy  500  has an inner face which conceals quick connect device, electrical wires, and electrical junction box, and is further provided with a centrally located aperture  502 . Aperture  502  is sized at least sufficiently large to allow the passage of push rod  116 . Where canopy  500  is bell shaped, or has an extended depth, as shown, an extending member, such as long push rod  152  or  152 ′, or an elongated push rod  116  extends through aperture  502 . 
     An open or closed supporting extension  504 , extends from the outer face of canopy  500 , connected to plug  222 . In the embodiment shown in  FIG. 33 , extension  504  threadably engages guide barrel  156 , which in turn threadably engages coupler  506 , which in turn threadably engages spindle assembly  100 . An aperture  508  is provided in extension  504  to allow the passage of push rod  116 , or as shown, long push rod  152 ′ threadably connected to push rod  116 . A rod cap  510  may be provided to facilitate pushing long push rod  152 ′ with a finger. Push rod  152 ′ is sized so that, with cap  510  in place, it is sufficiently long to allow operation of spindle assembly  100  to disengage, as described above, when pushed upwardly. 
     With further reference to  FIG. 33 , canopy  500  is maintained in a desired position by a shoulder  514  on extension  504 , sized larger than aperture  502  in canopy  500 . Alternatively, with reference to  FIG. 35 , aperture  502  is sized sufficiently large to allow passage of extension  504 , but not ring  516 , the latter being threadably engaged with the base of extension  504 , and operative thereby to maintain canopy  500  in position. 
     It should be understood that extension  504  may be connected to the lower threaded portion  96  of barrel  94  by a variety of means. For example, extension  504  may be formed integrally with canopy  500 , or may be connected to canopy  500  by welding, adhesion, or other known method, and canopy  500  thence connected to plug  222  by a coupling attached thereto (not shown), threaded to spindle assembly  100 . Alternatively, extension  504  may be advantageously used without canopy  500 , where the latter is neither needed nor desired. Extension  504  is connected to spindle assembly  100  as described above, however canopy  500  is not present. 
     It should be further understood that extension  504  may be effectively formed in a variety of open or closed shapes, including the embodiments  504   a  through  504   e , as shown in  FIG. 37 . 
     Where an electrical fixture is provided with a hook operative to suspend same, the fixture may be directly connected to extension  504 . Where an electrical fixture is provided with a loop, such as a chain, to suspend same, and where extension  504  is similarly formed as a closed loop, the electrical fixture may be connected to extension  504  with the use of an interposed linking member that may be disconnected, such as quick link  512 , shown in  FIGS. 32 and 33 , or other known means for releaseably connecting two closed loops. 
     With reference to  FIGS. 35 and 36 , electrical wires  518  are connected to plug  222 , and an electrical fixture, as described above, and pass therebetween through canopy  500 , or through extension  504 . If passing through canopy  500 , wires  518  pass through a conveniently located aperture, such as  522 , and if needed, a protective grommet  524  is provided at the passage. Alternatively, as can be seen in  FIG. 36 , wires  518  pass through extension  504  at aperture  520 . It should be understood, however, that extension  504  may be advantageously used to connect fixtures not requiring an electrical connection. 
     It should be further understood that supporting extension  504  can be advantageously utilized with a lateral actuator assembly of the type shown and described with respect to  FIG. 26 , wherein aperture  508  need not be provided, and extension  504  is connected to plug  222  by other means, such as through a mechanical attachment, or through attachment to canopy  500 , as described above. 
     Referring now to  FIG. 38 , device  300  includes a plug  222  which is mechanically and releasably connected to sensing unit  26 , for example by threads  40 , or alternatively by a press-fit connection, adhesive, clips, acoustic welding, or any other mechanical connection method. 
     In an embodiment, plug  222  (or plug  22 ) is electrically connected to sensing unit  26  using pins  28 , or alternatively by contacts, one or more plug and socket connections, or by any other electrical connection type. Alternatively, sensing unit  26  can form a connection directly to a wiring system of the edifice into which a device of the disclosure is installed, without connecting to plug  222 . 
     In an alternative embodiment, sensing unit  26  does not form a wired connection to either plug  222  or wiring of the edifice, and is battery operated and can communicate using one or more forms of wave energy transmission. 
     The assembly of plug  222  and sensing unit  26  is collectively contained within a housing  320  having windows  322  as required for transmission of light or other wave energy between sensing unit  26  and an exterior of housing  320 . More particularly, windows  322  align with sensors  48 ,  50  of sensing unit  26  when sensing unit  26  is mounted within housing  320 . For appearance, and to keep contaminants and objects away from sensors  48 ,  50 , some or all of windows  322  can be covered by a covering material  324  that transmits, advantageously with minimal loss, the type of energy used by the sensor  48 ,  50 . For example, covering material  324  can be a transparent glass or plastic pane, a screen, or a lens. 
     The assembly of plug  222  and sensing unit is positioned within housing  320  so that a top surface  326  of housing unit  320  is positioned a predetermined distance from socket  24 / 224 , which may be mounted, for example upon a ceiling, vertical wall, or floor. In  FIG. 38 , plug  222  includes a barrel  38  having threads  40  which extend from a central body  272  of plug  222 . A threaded fastener, for example nut  42 , can be threaded onto barrel  38  so that a lower surface  328  of housing  320  is clamped between nuts  42  to dispose plug  222  at the correct orientation with respect to housing  320 . 
     In an embodiment, device  300  comprises only plug  222 , sensing unit  26 , and housing  320 . Device  300  is releasably attachable using spindle  34  to a socket  224  mounted to the edifice. This assembly can then function to provide the sensing, communications, transmission, and other functions as described herein. These functions can include any or all of, for example, BLUETOOTH communication of information; WiFi communication, for example with a function of hub, router, access point, or relay; a motion sensor to detect movement, or an infrared sensor to detect the presence of humans or animals, useable for example to control an HVAC system or to provide input for an alarm or monitoring system; thermostat; camera for communication, or for an alarm or monitoring system; speaker; smoke detector; fire detector; occupancy detector using any of a variety of appropriate sensors, such as motion, infrared, audio, image detection, image recognition, or air pressure; humidity sensor, for example to protect art or identify leaks or water intrusion; and a power consumption meter to detect intrusion or to improve efficiency; and smoke and/or air quality sensors. Herein, for brevity, the term ‘sensor’ is used to collectively refer to any device which can carry out one or more of the foregoing functions, and it should therefore be understood that a ‘sensor’ herein can sense a condition, actuate, transmit, receive, both send and receive, or is otherwise configured to carry out any of the foregoing functions. 
     As shown in  FIG. 38 , a hanging lamp  400  is connected to a hickey type connector  402  threaded onto barrel  38 . A supporting electrical wire  404  passes through an aperture  332  in housing  320 , and is connected to plug central body  272  at connector channels  32 . Push button  36  is accessible within connector  330  to release device  300  together with the hanging lamp. While a hanging lamp is illustrated, it should be understood that a floor lamp or wall sconce could be created in a like manner, although a rigid connection between device  300  and the lamp can be provided, as understood within the art. In these embodiments, socket  24 / 224  is mounted in the floor or wall, respectively. A chain or other tether can be provided together with wire  404  for heavier suspended devices, such as swag lamps. For certain applications, the chain or tether forms one or more conductors, as understood within the art. 
     Turning now to  FIGS. 39-41 , in an embodiment of the disclosure, a fan, fan/light, or lamp head  420  includes a sensing unit  26 . The lamp head  420  can form a housing  320 B, which may be integral with a housing of lamp head  420 , or a sensing unit  26  can connected to lamp head  420  to expose the sensors  48 ,  50  as required. In  FIG. 41 , a sensor/camera  50 A is mounted on an underside of lamp head  420 , useable for detecting occupancy, movement, intrusion, or communications, for example. A wide angle lens can be used to obtain coverage of an entire room or overlapping area. It is noted that the shapes of sensors  48 ,  50 ,  50 A in the drawings are representative, typical, or arbitrary, and that sensors can have a wide variety of appearances, from not visible, to elongated, or any other shape. Further, sensors may be developed in the future which are useable in accordance with the disclosure and which may have a distinct appearance. Sensors may additionally extend from a surface of sensing unit  320 ,  320 A,  320 B, including for example an antenna or a movable camera. 
     In  FIG. 39 , central body  272  of plug  222  includes five connector channels  32 , which include a ground, neutral, and line (hot) connector, and two connectors for a serial data connection. Accordingly, plug  222  includes at least five corresponding male concentric connector rings  378  as described in the incorporated references, and socket  224  likewise includes at least five female recesses  380  and terminals  382 , all as shown, generally, in  FIGS. 25 and 30 . The basic functioning of the connector rings and female recesses are described in the incorporated references. 
     A low voltage signal generated by a remote device, such as a network switch or external sensor board power supply, or a connected device, such as board  52  and or sensor  48 ,  50 , can be placed on a concentric connector ring  378  which protrudes from the plug  22 ,  222  or socket  24 ,  224  body, as it may be contacted by a person without potential for harm. In such embodiments, each of a mating set of socket  24 ,  224  and plug  22 ,  222  include extending conductor rings  378  and corresponding mating recesses  380 . 
     If high voltage (e.g.  110  or  240   v ) is used for operation of the lamp head  420 , there may be certain electrical code restrictions with respect to passing the serial data wires through the same raceway or conduit as the high voltage cables. In some instances, it is acceptable if all wires are separately housed in insulation which is rated for the same maximum voltage. In other cases, suitable barriers can be provided which separate the high and low voltage cables. Alternatively, it is possible to produce the lamp head  420  to operate at low voltage, particularly in light of available low voltage LED lighting, signal and power conductors could be placed within the same conduit and junction box. Alternatively, low and high voltage wires connected to socket  224  could be directed to separate raceways at the mounting location. 
     Two serial data conductors enable transmission of sensor data to and from sensors  48 ,  50 , using any known protocol, including for example Firewire, USB, RS-485, or any other standard or proprietary format. In another embodiment, there are four serial data wire connections within plug  222  and socket  224 , corresponding to the four conductors of a standard Ethernet CATS or 6 cable, or other cable configuration, such as CAT 7 or a hereinafter developed network cable standard. In this manner, socket  224  can be connected to standard Ethernet compatible hubs, switches, and routers, to form part of a local or wide area network, including a local LAN or the Internet. In a further embodiment, only four connections are provided upon plug  222  and socket  224 , corresponding to a PoE (Power over Ethernet) connection, whereby both data and power for board  52  and lighting, if present, are carried by the Ethernet cable. In one embodiment, lamp head  420  is an emergency light which, together with other such lights, provides sufficient light to enable evacuation of the edifice in an emergency. It should be understood that plug  22 / 222  and socket  24 / 224  can be fabricated with any number of connections, and any combination of low voltage low power and high voltage higher power connectors as are needed, within space constraints and with regard to the safety and strength of the device. 
     In  FIG. 40 , housing  320 A forms a canopy sufficiently large to house a centrally located supporting electrical wire  404 , and a release lever  342 . In the embodiment shown, release lever  342  rotates about pivot  344  to engage and depress button  36 , to release plug  222 . Other forms of release lever are shown and described in the incorporated references, and can alternatively be used in this embodiment. In the embodiment shown, a canopy shape is created by elongating sidewalls  348 , and forming lower housing surface  350 A to curve toward a center region. However, housing  320 A can be provided in any shape for any particular purpose, including providing sufficient space for all components, for example housing components associated with the edifice, such as a protruding electrical box or other obstruction, or a retractable cord. Alternatively, or additionally, housing  320 A has a shape that is selected for appearance. 
     Screws  328  support housing  320  with respect to sensing unit  26 , the latter affixed to plug  222  by barrel  38 , threads  40 , and nuts  42 . Alternatively, housing  320  can be affixed directly to barrel  38 , or to plug  222  or sensing unit  26  by any other means, such as adhesive, press fit, or clips, for example. Lamp head  420  is shown hanging from the embodiment of  FIG. 40  (via reference “A”), although as with other embodiments herein, the assembly of  FIG. 40  can be arranged as a floor lamp or sconce. 
     With reference to  FIG. 42 , it may be seen that the lamp head  420 A of  FIG. 41  can be directly affixed to plug  222 , for example by using nuts  42  as illustrated, with button  36  extending and accessible through an aperture in a housing  320  of lamp head  420 A. Accordingly, camera  50 A has been offset to enable a central clearance for button  36 . Alternatively, a release lever  342  can be employed. Lamp head  420 A can be used and configured as a floor lamp, ceiling lamp, or sconce. As with all embodiments herein, devices can be configured for indoor or outdoor used, advantageously incorporating appropriate seals, and using weather and UV rated materials. 
       FIG. 43  illustrates a device  304  of the disclosure which includes a low-profile housing  320  and a plug  222 A having a shortened or truncated barrel  38 , plug  222 A otherwise including all of the components of plug  222  and functioning in a like manner as described herein and in the incorporated references. A two pronged release lever  342 A spans a center of lower housing surface  350 , enabling a central mounting for supporting electrical wire  404  or other centrally mounted object, such as a rigid lamp support. Two ends  346  extend through housing  320 , and can be pressed by two fingers or a suitably configured tool, to press button  36  and release plug  222 . 
       FIG. 44  illustrates a device  306  formed as an assembly including device  304  and lamp head  420 A. Other sensing and non-sensing devices of the disclosure, for example those of  FIGS. 38-40  or others herein, could alternatively be used instead of device  304  to form device  306 . In the embodiment of  FIG. 44 , a supporting electrical wire  404 , or a rod or other attachment structure, extends from housing  320  and is affixed to an extension housing  320 C at a distance from housing  320 . Extension housing  320 C contains a plug  224 , whereby a lamp head  420 A such as is shown in  FIG. 42  can be connected, or any other device including a plug  222 . The completed assembly, at a reduced scale, is shown in  FIG. 45 . As such, an assembly  306  including a plug  222 , sensor unit  26 , supporting electrical wire  404  or other extension, and extension housing  320 C forms an integral unit that can be installed between any device having a plug  222  and any socket  224 . In so doing, a sensor array can be used to not only provide a sensor unit, but to change or extend a location of a connected device. Further the lamp head can be exchanged for an alternate device to suit an intended use for an area, or to update or redecorate. Additionally, devices  306  can be daisy-chained, or connected one to another, to provide additional or redundant features. 
     In  FIG. 46 , extension housing  320 E is configured to include sensors as shown and described with respect to device  300  or  304 , for example. More particularly, a sensing board  52  can be provided within housing  320 E, or board  52  can be provided in another component, and sensors  48 ,  50  are connected by wires to a remote sensing board  52 . In the embodiment shown, wires  386  connect sensors  48 ,  50  to board  52 , and wires  388  carry a processed or pre-processed signal through wire  404  to be used elsewhere, as described herein. Accordingly, the embodiment of  FIG. 46  provides for a socketed or female extension device which can position sensors proximate any electrical fixture having a plug  24 ,  224  as described herein, regardless of whether or not the electrical fixture has incorporated sensors, such as are shown in  FIG. 41 or 42 , for example. 
     While the embodiment of  FIG. 42  is shown connected to device  306  which includes a sensing unit  26 , a conventional lamp, fan, or fan/light, or any other device provided with plug  222  can be connected. Similarly, extension housing  320 E can be provided, as shown in  FIG. 46 , and a conventional lamp  424  or other extended device can be additionally be connected to an assembly such as is shown in  FIG. 39, 40 , or  43 , or other device of the disclosure that includes sensors  48 ,  50 . Alternatively, where extension housing  320 E is provided, an additional sensor assembly can be omitted.  FIG. 47  further illustrates that sensors  48 ,  50 ,  50 A can be disposed additionally or solely upon lower housing surface  350  of any housing  350  or  350 A-E, herein. 
     Turning now to  FIG. 48 , a fan/light device  308  includes a canopy or housing  320 D which includes a gimbal support  426 . As illustrated adjacent to device, a plug  222  is mounted inside canopy  320 D to be connectable to a socket  224  mounted to a wall, ceiling, or floor. An extension rod  362  is slideably supported within device  308  to contact button  36 , and includes a distal end  364  which is pushable to disconnect plug  222  from a socket  224 . Various alternative embodiments of such extension push-rods are discussed in the incorporated references. 
     A light cover  366  is removable to reveal distal end  364 , which can be pushed when it is desired to release device  308 . Light cover  366  includes a lens  368  which visibly obscures sensors  48 ,  50 , but enables transmission of energy to and from the sensors/transmitters/receivers. Alternatively, lens  368  can be transparent, or can be transparent in a small location, for example to enable a visible light camera to obtain images. A sensor board  52  can be located under light cover  366 , within fan body  428 , or within canopy  320 D. 
     Devices of the disclosure equipped with sensing units  26  can form part of a “smart home” architecture and operation, such as are made by GE and other companies. Accordingly, board  52  can be provided with electronic circuitry, including an electronic processor, memory, storage, and other components which can enable programming and remote operation associated with such a function. Remote operation can include a central programming or control program which controls the functioning of a device of the disclosure. This can include, for example, control from a website, or control from an app executing upon a smartphone or tablet. Alternatively, a handheld TV/DVR style remote control device can be used. 
     Devices of the disclosure can include one more sensors which can function as any or all of intelligent thermostats, intelligent hazard-detection unit, intelligent entryway-interface device, smart switch, including smart wall-like switches, smart utilities interface or interface to other service, such as smart wall-plug interface, and a wide variety of intelligent, multi-sensing, network-connected appliances, including refrigerators, televisions, washers, dryers, lights, audio systems, intercom systems, mechanical actuators, wall air conditioners, pool-heating units, irrigation systems, and many other types of intelligent appliances and systems. 
     Devices of the disclosure can include one or more different types of sensors, one or more controllers and/or actuators, and one or more communications interfaces that connect the smart-home devices to other smart-home devices, routers, bridges, and hubs within a local smart-home environment, various different types of local computer systems, and to the Internet, through which a smart-home device may communicate with cloud-computing servers and other remote computing systems. Data communications can be carried out by sensors  48 ,  50  and board  52  using any of a large variety of different types of communications media and protocols, including wireless protocols, such as Wi-Fi, ZigBee, 6LoWPAN, various types of wired protocols, including CAT6 Ethernet, HomePlug, and other such wired protocols, and various other types of communications protocols and technologies. Devices of the disclosure can integrate with each other, or with previously known so-called ‘smart-home’ devices, and may themselves operate as intermediate communications devices, such as repeaters, for smart-home devices and other devices of the disclosure. A smart-home environment including devices of the disclosure can additionally include a variety of different types of legacy appliances and devices which lack communications interfaces and processor-based controllers. 
     All references cited herein are expressly incorporated by reference in their entirety. It will be appreciated by persons skilled in the art that the present disclosure is not limited to what has been particularly shown and described herein above. In addition, unless mention was made above to the contrary, it should be noted that all of the accompanying drawings are not to scale. There are many different features to the present disclosure and it is contemplated that these features may be used together or separately. Thus, the disclosure should not be limited to any particular combination of features or to a particular application of the disclosure. Further, it should be understood that variations and modifications within the spirit and scope of the disclosure might occur to those skilled in the art to which the disclosure pertains. Accordingly, all expedient modifications readily attainable by one versed in the art from the disclosure set forth herein that are within the scope and spirit of the present disclosure are to be included as further embodiments of the present disclosure. 
     DRAWING REFERENCES 
     
       
         
           
               
             
               
                   
               
             
            
               
                  20 quick connect device 
               
               
                  22 plug 
               
               
                  24 socket 
               
               
                  26 sensing unit 
               
               
                  28 pins (extending from plug) 
               
               
                  30 receptacles (in sensor unit) 
               
               
                  32 channel (in plug) 
               
               
                  34 spindle assembly 
               
               
                  36 push button (of plug) 
               
               
                  38 barrel (of plug) 
               
               
                  40 threads (barrel) 
               
               
                  42 nut 
               
               
                  44 locking washer 
               
               
                  46 mounting strap 
               
               
                  48 sensor (receiver, or other sensor type) 
               
               
                  50 sensor (transmitter, or other sensor type) 
               
               
                  50A camera or sensor 
               
               
                  52 sensing board 
               
               
                  54 low voltage power generation circuit 
               
               
                  56 control circuit 
               
               
                  58 high voltage AC control circuit 
               
               
                  60 slots 
               
               
                  62 double locking mechanism 
               
               
                  94 barrel 
               
               
                  96 lower threaded portion (of barrel) 
               
               
                 100 spindle assembly 
               
               
                 116 push rod 
               
               
                 124 fan socket 
               
               
                 132 mounting strap 
               
               
                 134 aperture 
               
               
                 136 flanges 
               
               
                 138 screw 
               
               
                 140 arcuate outer curvature 
               
               
                 142 edge (curvature) 
               
               
                 144 track 
               
               
                 146 screw 
               
               
                 152 long push rod 
               
               
                 152′ long push rod 
               
               
                 156 guide barrel 
               
               
                 220 quick connect device 
               
               
                 222 plug 
               
               
                 224 socket 
               
               
                 226 electrical fixture 
               
               
                 228 electrical junction box 
               
               
                 230 teeth 
               
               
                 232 mounting strap 
               
               
                 234 aperture 
               
               
                 236 flanges 
               
               
                 238 screw 
               
               
                 240 face plate 
               
               
                 242 rim 
               
               
                 244 cut out 
               
               
                 248 resilient tabs 
               
               
                 250 face plate centerpiece 
               
               
                 252 peripheral edge 
               
               
                 254 post 
               
               
                 256 central bore 
               
               
                 260 top surface (plug) 
               
               
                 272 central body (plug) 
               
               
                 300 device assembly 
               
               
                 304 device assembly 
               
               
                 306 device assembly 
               
               
                 308 fan/light device 
               
               
                 320, 320A, 320B housing 
               
               
                 320C extension housing 
               
               
                 320D fan housing 
               
               
                 322 window (in housing) 
               
               
                 324 window covering material 
               
               
                 326 top surface (of housing) 
               
               
                 330 connector 
               
               
                 342 release lever 
               
               
                 342A two prong release lever 
               
               
                 344 release lever pivot 
               
               
                 346 release lever ends 
               
               
                 348 housing sidewall 
               
               
                 350, 350A lower housing surface 
               
               
                 362 extension rod 
               
               
                 364 extension rod distal end 
               
               
                 366 light cover 
               
               
                 368 light cover lens 
               
               
                 404 supporting electrical wire 
               
               
                 420 fan, fan/light, or lamp head 
               
               
                 424 conventional lamp 
               
               
                 426 gimbal support 
               
               
                 428 fan body 
               
               
                 500 canopy 
               
               
                 502 aperture 
               
               
                 504 supporting extension 
               
               
                 504a-504e extension embodiments 
               
               
                 506 coupler 
               
               
                 508 aperture (extension) 
               
               
                 510 rod cap 
               
               
                 512 quick link 
               
               
                 514 shoulder (canopy) 
               
               
                 516 ring 
               
               
                 518 electrical wires 
               
               
                 520 aperture 
               
               
                 522 aperture 
               
               
                 524 grommet