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.
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.
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.
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:
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'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
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
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
1) Low Voltage Power Generation Circuit (Element 54 of
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
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
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
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
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.
At this point, the fixture can be connected to socket 224 via plug 222 for immediate use as shown in
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.
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).
As shown in
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
An open or closed supporting extension 504, extends from the outer face of canopy 500, connected to plug 222. In the embodiment shown in
With further reference to
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 504a through 504e, as shown in
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
With reference to
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
Referring now to
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
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
Turning now to
In
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 240v) 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
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
With reference to
In
While the embodiment of
Turning now to
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 320D.
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.
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.
Number | Date | Country | |
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62308718 | Mar 2016 | US | |
62160585 | May 2015 | US |
Number | Date | Country | |
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Parent | 15573606 | Nov 2017 | US |
Child | 16443207 | US |