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FIELD OF THE INVENTION 
       [0001]    Our invention generally relates to the field of hanger clips that attach to a ceiling from which objects can be mounted and specifically to adjustable hanger clips that can be removably attached to a hanging ceiling to which objects can be easily mounted to hang from the ceiling. 
       BACKGROUND OF THE INVENTION 
       [0002]    Suspended ceilings are prevalent in many industrial and commercial buildings as they permit building systems to be installed above the ceiling and allow for easy access to these systems in the event they need to be serviced. Suspended ceiling systems typically include some sort of inverted “T” shaped metal track on which the ceiling panels rest and are supported. As these metal tracks are relatively rigid, it is convenient to hang various light-weight objects from them. Base stations or access points associated with a wireless LAN are often hung from or mounted to the downward side of the metal tracks of suspended ceilings in order to optimize their effectiveness in the wireless LAN. During or subsequent to the initial installation of the access point into a wireless LAN, it is advantageous to be able to easily mount the access point to the metal track and to be able to easily move the access point around on the metal track from one location to another in order to determine the optimal location from which the access point can operate. 
       SUMMARY OF THE INVENTION 
       [0003]    Preferred embodiments according to the present invention provide a convenient technique for mounting an access point to a metal track using a small, inexpensive, light-weight track clip hanger device that can be quickly and easily attached to the metal track and to which the access point can be quickly and easily mounted. The track clip hanger can be securely attached to the metal track and the access point can in turn be securely mounted to the clip. The track clip hanger was adjustable to be able to fit ceiling tracks of different widths. 
         [0004]    In a preferred embodiment the track clip hanger assembly is comprised of two track clip hanger body elements that are attached to the ceiling track at the same time that each of the two body elements are mated with each other. One of the track clip hanger body elements of the preferred embodiment includes a receiver to which the mount of an electronic device can be inserted. In a preferred embodiment each of the track clip hanger body elements includes a body mating element and two ceiling track attachment arms. In a preferred embodiment each of the body mating elements associated with one of the track clip hanger body elements includes a ratcheting element and a body mating registration channel. In a preferred embodiment each of the body mating elements associated with the other one of the track clip hanger body elements includes a ratcheting element and a channel registration element. In alternate embodiments one or both the track clip hanger body elements only include one ceiling track attachment arm. In other embodiments the receiver is configured to receive a screw held captive in the access point or is configured to hold a screw for attaching to the access point. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0005]      FIG. 1  is a drawing of a track clip hanger assembly attached to a ceiling track. 
           [0006]      FIG. 2  is perspective drawing of the track clip hanger assembly mounted to an access point showing mated first and second track clip hanger body elements. 
           [0007]      FIG. 3  is a perspective drawing of a bottom view of the track clip hanger assembly. 
           [0008]      FIG. 4  is a perspective drawing of the top view of the track clip hanger assembly. 
           [0009]      FIG. 5  is a bottom view of the un-mated track clip hanger assembly. 
           [0010]      FIG. 6  is a drawing of a wireless LAN access point. 
           [0011]      FIG. 7  is a perspective drawing of a top view of a first body element comprising the track clip hanger assembly. 
           [0012]      FIG. 8  is a perspective drawing of a bottom view of the first body element comprising the track clip hanger assembly. 
           [0013]      FIG. 9  is a perspective drawing of a top view of a second body element comprising the track clip hanger assembly. 
           [0014]      FIG. 10  is a perspective drawing of a bottom view of the first body element comprising the track clip hanger assembly. 
           [0015]      FIG. 11  is a perspective drawing of the second track clip hanger body element with a single ceiling track attachment arm. 
           [0016]      FIG. 12  is a perspective drawing of the first track clip hanger body element with a single ceiling track attachment arm. 
           [0017]      FIG. 13  is a side view of the wireless LAN access point showing a through sleeve arrangement. 
       
    
    
     DETAILED DESCRIPTION OF THE INVENTION 
       [0018]      FIG. 1  is a side view of a track clip hanger (TCH) assembly  10  illustrating how it attaches to a ceiling track  11 . The ceiling track is shown in cross section and is typically attached to the ceiling or a structure such that its orientation is that of an inverted “T”. The track clip hanger assembly is attached to the horizontal element  12  of the ceiling track and this horizontal element can be of various widths, depending upon aesthetic, ceiling tile support, or other reasons. 
         [0019]      FIG. 2  is a perspective drawing of the preferred embodiment of the TCH assembly  10  showing first and second TCH body elements  32  and  33  respectively in a mated position with respect to each other and attached to an access point (AP) mounting element  61  which is in turn attached to the top side of access point  60 . While we describe our invention in terms of supporting an electronic device, such as an access point, our TCH assembly  10  can be easily modified to accommodate hanging other electronic or non-electronic items, such as signs, display cards or other objects. 
         [0020]      FIGS. 3 ,  4  and  5  are perspective drawings of different views of the track clip hanger (TCH) assembly  10 , of our invention.  FIG. 3  is a drawing showing a bottom view of the TCH assembly  10 ,  FIG. 4  is a drawing showing a top view of the TCH assembly  10  and  FIG. 5  is another top view of the TCH assembly  10 . The bottom and top views are from the perspective of someone standing under a TCH assembly  10  that is attached to a ceiling track. The TCH assembly  10  is formed by a molding process and can be constructed of any strong [Question: is the strength of the material specified?], easily molded material. In this case the material is a plastic selected for both it tensile and yield strength [Question: Any particular type of plastic?]. Each of the  FIGS. 3 ,  4  &amp;  5  show the first and second TCH body elements, labeled  32  and  33  respectively, which are designed to slidably mate with each other as the assembly is attached to the ceiling track  11 . From a different perspective, the act of slidably mating the first and second TCH bodies results in the attachment of the TCH assembly  10  to the ceiling track  11 . The first TCH body  32  is designed to receive a clip mounting element  61  that includes a head element  62   b  which is attached via a stem element  62   a  to the top of, for example, a wireless LAN access point  60  as shown in  FIG. 6 . Once the TCH assembly  10  is attached to the ceiling track  11 , the access point  60  can be attached to the bottom of the TCH assembly  10  by simply inserting the clip mounting element  61  into the open end of an access point mount receiver element that will be discussed later with reference to  FIGS. 7 and 8 . 
         [0021]      FIG. 7  is a top view of the first TCH body element  32 , showing two ceiling channel attachment arms  70   a  and  70   b  hereinafter referred to as simply attachment arms, two TCH assembly body mating elements  71   a  and  71   b , an access point mount retainer element  72 , an access point clip mount receiver element  73  and two TCH body mating channel registration elements  74   a  and  74   b . Each of the two attachment arms,  70   a  and  70   b , are connected to the TCH body element  32  at their proximal ends and extend in an essentially straight mariner upwards to flanges  76   a  and  76   b  that extend from the distal end of the attachment arms at a ninety degree angle. The bottom surface of each of these flanges rests on the top of a ceiling track horizontal element, supporting the first TCH body element  10  on the ceiling track  11  as previously illustrated with reference to  FIG. 1 . 
         [0022]    The two body mating elements  71   a  and  71   b  and the associated registration channels  74   a  and  74   b  respectively are designed to register the first TCH body element  32  with the second TCH body element  33  during the process of mating the two body elements. The access point clip mount receiver element  73  is open at the top, as indicated by  75  and the associated arrow pointing to the opening, and generally designed to accept the access point clip mounting element  61  of  FIG. 6  such that the mounting element head  62   b  is positively seated in the receiver element  73 . Although the preferred embodiment of our TCH includes a receiver element  73  that is optimally designed to receive an access point with a particular type of mounting element, the receiver design can be easily modified so that a sign or other object can be attached to the TCH assembly  10 . 
         [0023]      FIG. 8  is a bottom view of the first TCH body element  32 , showing the first and second TCH assembly body mating elements  71   a  and  71   b  respectively and associated mating interference or ratcheting elements  84   a  and  84   b  respectively and the access point mount receiver  73 . The AP mount receiver  73  is comprised of a front opening  81  for receiving access point clip mount element  61  as previously described with reference to  FIG. 7 , a bottom surface element  82  that includes a semi-circular opening  82   a  that receives the access point mount element stem  62   a , two side surface elements  85   a  (shown in view) and  85   b  (not shown in view) and a back surface element  86 . The AP mount receiver  73  is further includes two receiver lip elements  83   a  and  83   b  (not shown in view). The two TCH body mating interference or ratcheting elements  84   a  and  84   b  are molded into the bottom side of each TCH assembly body mating element  71   a  and  71   b  respectively, and can run the entire length of both mating elements. The function of the two ratcheting elements will be described later in detail with reference to  FIG. 9 . 
         [0024]    Returning now to  FIG. 7 , once the access point clip mounting element  61  is placed into the receiver element  73 , an access point clip mount retainer element  72  presses downward on the top of the mounting element head  62   b  and applies downward pressure to the top of the head element to positively hold the access point  60  in the receiver  73 . Thus both the lip elements  83   a  and  83   b  describe previously in  FIG. 8  and the retainer  72  shown in  FIG. 7  operate to positively hold the access point mounting element  61  and therefore the access point  60  positively in place. 
         [0025]    Turning now to  FIG. 9 , which is a top view of the second TCH body element  33 . TCH body element  33  is comprised of two TCH body mating elements  92   a  and  92   b , a body mating element connecting member  94 , two attachment arms  93   a  and  93   b  and two attachment arm flanges  96   a  and  96   b . Each one of the two TCH body mating elements  92   a  and  92   b  includes a TCH body mating interference or ratcheting element  91   a  and  91   b  respectively, which is preferably molded into a top surface of each body mating element and functions to provide a friction or ratcheting fit between the first and second TCH body elements  32  and  33 . Further, each one of the two TCH body mating elements  92   a  and  92   b  is comprised of a body mating channel registration element  95   a  and  95   b  respectively, which function to correctly position the first and second TCH body elements  32  and  33  during the mating process. Each of the two attachment arms  93   a  and  93   b  are connected at their proximal ends to one of the body mating elements and extend upward in a generally straight manner to a distal end which terminates in attachment arm flanges  96   a  and  96   b  that are arranged at a ninety degree angle to the attachment arm elements. The bottom surfaces of the two attachment arm flanges rest on the top of the horizontal surface of a ceiling track, as illustrated earlier with reference to  FIG. 1 , such that when the first and second TCH body elements are in the mated position the four flanges  76   a  and  76   b  of  FIGS. 7 and 96   a  and  96   b  of  FIG. 9  firmly hold the TCH assembly  10  to the ceiling track. 
         [0026]    When the TCH body elements  32  and  33  are in the mated position, the interference elements  84   a  and  84   b  molded into the first body element  32  are at least partially in contact with the interference elements  91   a  and  91   b  molded into the second body element  33  to form a frictional or ratcheting type relationship or interface fit that serves to prevent the first and second TCH body elements  32  and  33  from separating or un-mating once they are in a mated position. A further advantage of the manner in which the TCH body elements slidably mate with each other is that the assembly can be attached to ceiling tracks of varying widths. 
         [0027]    In an alternative embodiment of our invention, each of the TCH body elements  33  and  32  described with reference to  FIG. 7  and  FIG. 9  respectively are modified to only include a single ceiling track attachment arm.  FIG. 11  illustrates TCH body element  33  with a single ceiling track attachment arm  110  which can replace the two ceiling track attachment arms  70   a  and  70   b  showing in  FIG. 7 . Similarly,  FIG. 12  illustrates TCH body element  32  with a single ceiling track attachment arm  120  which can replace the two ceiling track attachment arms  93   a  and  93   b  shown in  FIG. 9 . As can be seen in each of the  FIGS. 11 and 12 , the ceiling track attachment arms  110  and  120  are more substantial than the ceiling track attachment arms  70   a  and  70   b  and  93   a  and  93   b . Being more substantial permits a greater weight to be attached to the TCH assembly  10  once it is attached to a ceiling track. 
         [0028]    In yet another alternative embodiment of our invention, the access point mount receiver element  73  described with reference to  FIG. 7  is replaced a receiver element  100  shown with reference to  FIG. 10 . The receiver element  100  is rectangular in shape and in this case entirely solid, although this is not necessary. The receiver element includes a thru hole  112  that can be threaded or not. In the event that the thru hole is not threaded, a metallic, threaded sleeve, not shown, can be inserted into the thru hole and attached to the receiver in such a manner that it can not be easily removed. An adhesive agent can be used to attach the sleeve to the thru hole or the dimensions of the thru hole can be specified such that a certain amount of pressure needs to be used to press the sleeve into the thru hole, such as with a pressed fit arrangement. 
         [0029]    In another embodiment of our invention, the mounting element  61  described with reference to  FIG. 6  can be replaced by a screw that passes through the access point  60 .  FIG. 13  is a side view of the access point  60  of  FIG. 6  showing a thru sleeve arrangement  115  through which is passed a screw  116 . Once the alternative embodiment of our TCH assembly  10  described with reference to  FIG. 10  is attached to a ceiling track, the access point  60  can be mounted to the TCH assembly by simply passing the screw  116  through the sleeve  115  to engage the threaded thru hole  112  of  FIG. 10  and turned to secure the access point to the TCH assembly. Although we have described the screw  116  as not being permanently associated with the through sleeve  115 , the screw  116  can be permanently associated with or captive by the through sleeve  115 . 
         [0030]    Although, we describe various aspects of the preferred embodiment of our inventive TCH assembly in a particular way, it should be understood that this description is meant only to as a guide to those who wish to practice this invention and not as limitations to the invention. So, for instance, although we describe the attachment arm elements as being attached at their proximate ends to TCH body mating elements and extending in a generally straight manner to a flange at their distal ends, the attachment arm can be designed such that the portion of the arm between its proximate and distal ends is not generally straight. 
         [0031]    The forgoing description, for purposes of explanation, used specific nomenclature to provide a thorough understanding of the invention. However, it will be apparent to one skilled in the art that specific details are not required in order to practice the invention. Thus, the forgoing descriptions of specific embodiments of the invention are presented for purposes of illustration and description. They are not intended to be exhaustive or to limit the invention to the precise forms disclosed; obviously, many modifications and variations are possible in view of the above teachings. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, they thereby enable others skilled in the art to best utilize the invention and various embodiments with various modifications as are suited to the particular use contemplated. It is intended that the following claims and their equivalents define the scope of the invention.

Summary:
A track clip hanger assembly is composed of two parts that are mated together in a slidable manner to attach the assembly to a hanging ceiling track. Each of the two track clip hanger parts include an arrangement for mating one part to the other and each of the two parts include an arrangement for attaching the assembly to a ceiling track such that the assembly hangs from the bottom of the track when the two parts are in the mated position and the two parts of the track clip hanger assembly are mated in such a manner that the two parts will not accidentally come apart or un-mate. The track clip hanger assembly is designed to allow an electronic device to be attached to it so that the device can not accidentally become un-attached.