Abstract:
A modular equipment mount to enable quick relocation of the piece of equipment. The piece of equipment is secured to a mount. A track system is secured to multiple locations where the piece of equipment may be secured. Power and data connections are included with the track system to provide power and data to the piece of equipment through connectors on the mount.

Description:
CROSS REFERENCE TO RELATED APPLICATIONS 
     This application is a continuation of U.S. patent application Ser. No. 14/633,797 filed Feb. 27, 2015, which is a divisional application of U.S. patent application Ser. No. 13/763,853 filed Feb. 11, 2013, now U.S. Pat. No. 8,992,238, the entire disclosures of both applications being incorporated herein by reference. 
    
    
     TECHNICAL FIELD 
     The present specification generally relates to mounting systems for equipment and devices. 
     SUMMARY 
     In one embodiment, a track may include a backing plate with a number of slots substantially parallel to each other and disposed upon the backing plate. Each slot includes a plurality of open regions and a plurality of necked down regions connecting the plurality of open regions. The track may also include a plurality of electrical contacts disposed along the backing plate and adjacent to at least one of the plurality of slots and at least one of the plurality of electrical contacts are electrically coupled to a power source or data source. 
     In another embodiment, a mount may include a mounting plate with a back surface and a front surface. The mount may also include at least one mounting stud coupled to the back surface of the mounting plate, where each mounting stud includes a stem portion that extends outwardly from the back surface and an enlarged head portion disposed at a distal end of respective stem portions. The mount may also include a plurality of equipment mounting locations disposed through the mounting plate to secure a piece of equipment to the mount to the front surface and at least one electrical connector secured to the mounting plate and electrically coupled to the piece of equipment. The mount may also include a release mechanism including a locking pin disposed through the mounting plate and extending outwardly from the back surface and at least one locking pin released operatively connected to the locking pin. 
     In yet another embodiment an equipment mounting apparatus may include the track with a backing plate with a number of slots substantially parallel to each other and disposed upon the backing plate. Each slot includes a plurality of open regions and a plurality of necked down regions connecting the plurality of open regions. The track may also include a plurality of electrical contacts disposed along the backing plate and adjacent to at least one of the plurality of slots and at least one of the plurality of electrical contacts are electrically coupled to a power source or data source. The equipment mount may also include a mount including a mounting plate with a back surface and a front surface. The mount may also include at least one mounting stud coupled to the back surface of the mounting plate, where each mounting stud includes a stem portion that extends outwardly from the back surface and an enlarged head portion disposed at a distal end of respective stem portions. The mount may also include a plurality of equipment mounting locations disposed through the mounting plate to secure a piece of equipment to the mount to the front surface and at least one electrical connector secured to the mounting plate and electrically coupled to the piece of equipment. The mount may also include a release mechanism including a locking pin disposed through the mounting plate and extending outwardly from the back surface and at least one locking pin released operatively connected to the locking pin. The plurality of electrical contacts electrically couple with the at least one electrical connector to provide power or data to the piece of equipment when the mount is secured to the track. 
     These and additional features provided by the embodiments described herein will be more fully understood in view of the following detailed description, in conjunction with the drawings. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The embodiments set forth in the drawings are illustrative and exemplary in nature and not intended to limit the subject matter defined by the claims. The following detailed description of the illustrative embodiments can be understood when read in conjunction with the following drawings, where like structure is indicated with like reference numerals and in which: 
         FIG. 1  depicts a front view of a track for use in an electrified equipment mounting system according to one or more embodiments shown and described herein; 
         FIG. 2  depicts a side view of the track according to one or more embodiments shown and described herein; 
         FIG. 3  is a perspective view of the track with a plurality of electrical contacts according to one or more embodiments shown and described herein; 
         FIG. 4  is a perspective view of a mount attached to a piece of equipment according to one or more embodiments shown and described herein; 
         FIGS. 5 and 6  illustrate the interaction between the track of  FIG. 1  and the mount of  FIG. 3  according to one or more embodiments shown and described herein; 
         FIG. 7  is a side view of the mount and track locked together according to one or more embodiments shown and described herein; 
         FIG. 8  depicts the piece of equipment attached to the track using a mount according to one or more embodiments shown and described herein; 
         FIG. 9  depicts a perspective view of an electrical adaptor according to one or more embodiments shown and described herein; 
         FIG. 10  illustrates the electrical adaptor attached to the track and electrically coupled to the mount according to one or more embodiments shown and described herein; 
         FIG. 11  illustrates a second embodiment of the electrical adaptor according to one or more embodiments shown and described herein; 
         FIG. 12  depicts the second embodiment of the electrical adaptor attached to the track and electrically coupled to the mount according to one or more embodiments shown and described herein; 
         FIG. 13  is a front view a fixed position plate; 
         FIG. 14  depicts a front view of the track with a plurality of target open regions and non-target open regions; 
         FIG. 15  depicts a front view of the track  10  with a plurality of lock holes; and 
         FIG. 16  depicts a front of the track  10  without a center slot. 
     
    
    
     DETAILED DESCRIPTION 
     The following text sets forth a broad description of numerous different embodiments of the present disclosure. The description is to be construed as illustrative only and does not describe every possible embodiment since describing every possible embodiment would be impractical, if not impossible, and it will be understood that any feature, characteristic, component, composition, ingredient, product, step or methodology described herein can be deleted, combined with or substituted for, in whole or part, any other feature, characteristic, component, composition, ingredient, product, step or methodology described herein. Numerous alternative embodiments could be implemented, using either current technology or technology developed after the filing date of this patent, which would still fall within the scope of the claims. All publications and patents cited herein are incorporated herein by reference. 
     No term is intended to be essential to the present invention unless so stated. To the extent that any term recited in the claims at the end of this patent is referred to in this patent in a manner consistent with a single meaning, that is done for sake of clarity only so as to not confuse the reader, and it is not intended that such a claim term be limited, by implication or otherwise, to that single meaning 
     Referring now to  FIG. 1 , a front view of a track  10  for use in an electrified equipment mounting system or similar track system is illustrated. While multiple tracks can be used, only one track  10  will be described as multiple tracks of the same track system may have the same or substantially the same features. Furthermore the size, shape, and/or configuration of the track  10  can vary depending on the size of a surface for installation and the equipment to be mounted to the track  10 . The track  10  includes a backing plate  15  that may have an elongated, rectangular shape (or any other suitable shape) and a plurality of slots. In some embodiments, the plurality of slots may be three slots; a left slot  20 , a center slot  25 , and a right slot  30  that are disposed along the backing plate, extend at any length along the backing plate  15 , and are adjacent to at least one of the plurality of slots. In other words, the plurality of slots are substantially parallel to each other. Each slot  20 ,  25  and  30  may have a plurality of open regions  35  that are adjacent to a plurality of necked-down regions  40 . In some embodiments, the open regions  35  are symmetrical such that they are spaced equidistant apart and are aligned in widthwise rows along the length of the backing plate  15 . As another example, the open regions  35  of one or more of the slots  20 ,  25  and  30  may not all be equidistant and/or may not be aligned in rows with the other open regions of the other slots. 
     The track  10  may have a plurality of electrical contacts  45  electrically coupled to a power supply (not shown) and/or a data source or data sources (not shown). The plurality of electrical contacts  45  may be substantially parallel to the plurality of slots and may extend at any length along the backing plate  15 . In some embodiments, the plurality of electrical contacts may be electrically conductive strips or a plurality of pads  281  as shown in  FIG. 13 . The plurality of electrical contacts  45  may all be electrically coupled to the power source or they all may be electrically coupled to the data source or data sources. Alternatively, the plurality of electrical contacts  45  may have a subset of electrical contacts that are electrically coupled to a power source and a co-existing subset of electrical contacts that are electrically coupled to a data source or data sources. Although the electrical contacts  45  are shown as substantially parallel to the plurality of slots  20 ,  25 , and  30 , it is understood that other configurations are possible such as, for example, non-parallel orientations, plug-type contacts, etc. 
     In  FIG. 2 , a side view of the track  10  is illustrated. The plurality of electrical contacts  45  and the t-shape of the three slots (left slot  20 , center slot  25 , and the right slot  30 ) are shown. In some embodiments, the plurality of electrical contacts  45  may be surface mounted and not embedded as shown in  FIG. 2 . For example the plurality of electrical contacts  45  may be extruded on or formed onto the track  10 . The plurality of electrical contacts  45  may have a cover  50  to insulate the plurality of electrical contacts  45 . The cover  50  may be removably attached to the track  10 . The cover  50  may be cut to insulate only that portion of the plurality of electrical contacts  45  that are exposed to inadvertent contact. In some embodiments, the track  10  may include a plurality of wire raceways  60  that are used to manage and protect electrical conductors. 
       FIG. 3  is a perspective view of the track  10  with the plurality of electrical contacts  45 . The plurality of wire raceways  60  may run the length of the track  10  or they may be cut short or have cut-outs to allow at least one wire or an electrical conductor  175  ( FIG. 9 ) to exit the wire raceway  60 . In some embodiments, a plurality of raceway access points  65  may be disposed in at least one of the plurality of slots to allow an electrical conductor  175  to pass through the backing plate  15  and into one of the wire raceways  60 . A non-limited example is shown in  FIG. 3  where raceway access points  65  are located in the center slot  25 . For example, the raceway access points  65  may also be located in any of the three slots to include the left slot  20  and/or the right slot  30 . 
       FIG. 4  is a perspective view of a mount  70  attached to a piece of equipment  75 . The mount  70  has a mounting plate  80 , a back surface  85 , a front surface  90 , and at least one mounting stud  95 . For example, the at least one mounting stud  95  may be four mounting studs  95   a ,  95   b ,  95   c , and  95   d . The mount  70  may be operable to be removably connected and/or attached to the track  10  as shown in  FIG. 1  or a fixed position plate  250  ( FIG. 13 ). Each mounting stud  95   a - d  includes a respective stem portion  100   a - d  that extends outwardly from the back surface  85  and a respective enlarged head portion  105   a - d  disposed at a distal end of respective stem portions  100   a - d . A release mechanism (not shown) with a locking pin  110 , and at least one locking pin release may be used to prevent the mount  70  from moving once secured to the track  10  or fixed position plate  250 . For example, at least one locking pin release may be a right locking pin release  115  and a left locking pin release  120 . The locking pin  110  may be disposed through the mounting plate  80 , extending outwardly from the back surface, and may be biased (e.g., by a spring, resilient material, or other biasing means) outward towards an extended lock position for engaging the center slot  25  of the track  10  or the corresponding locking pin opening (not shown, part of the fixed position plate). It should be understood that the locking pin  110  may be located on the mount  70  to engage the right slot  30  or the left slot  25  of the track  10 . The locking pin  110  may be retracted using either individually or in combination the right locking pin release  115  or the left locking pin release  120  which is operatively connected to the released mechanism (not shown). It should be understood that both locking pin releases could be oriented in any direction in order to avoid any obstructions, yet still allow the release of the mount  70  from the track  10  or the fixed position plate. Furthermore, in some embodiments, two or more release levers may need to be actuated in order to release the mounting plate  80  of the mount  70 . Such an embodiment may provide for additional security by preventing unwanted movement of the mounting plate  80  when one of the locking pin releases  115  or  120  is accidentally actuated. The front surface  90  may have any device and/or piece of equipment  75  attached to it. In a non-limiting example, a plurality of equipment mounting locations  150  are shown around the locking pin  110  and may be used to secure the piece of equipment  75  to the mount  70 . The plurality of equipment mounting locations  150  may be in any configuration to allow any piece of equipment  75  to be secured to the mount  70 . 
     The mount  70  may have at least one electrical connector secured to the mounting plate  80 . In some embodiments, the electrical connector is at least one terminal mount  140  disposed on the back surface  85 . A plurality of electrical wipers  145  are coupled to the terminal mount  140  and they may be electrically coupled to the piece of equipment  75  attached to the mount  70 . In some embodiments, there are an equal amount of electrical wipers  145  as electrical contacts  45  on the track  10 . In another embodiment, the electrical wipers may be pads that matedly couple with the pads of the plurality of electrical contacts  45  of the track  10 . 
     Referring to  FIGS. 5 and 6 , the track  10  and the mount  70  provide an out-of-phase configuration that is used to lock the mount  70  to the track  10 . Referring to  FIG. 5 , when the enlarged head portions  105   a ,  105   b ,  105   c  and  105   d  of the mounting studs  95   a ,  95   b ,  95   c  and  95   d  of the mount  70  are inserted within the plurality of open regions  35   a ,  35   b ,  35   c  and  35   d  of the left slot  20  and the right slot  30  respectively. The locking pin  110  is prevented from entering the center slot  25  due to its alignment with the necked-down region  40   e . In some embodiments, placing the enlarged head portions  105   a ,  105   b ,  105   c  and  105   d  in the left slot  20  and the right slot  30  respectively, causes the locking pin  110  to retract from its outwardly biased, extended position. 
     Referring to  FIG. 6 , the stem portions  100  (not shown) of the mounting studs  95   a ,  95   b ,  95   c  and  95   d  are sized to slide through the necked-down region  40   a ,  40   b ,  40   c , and  40   d  respectively while the enlarged head portions  105   a ,  105   b ,  105   c  and  105   d  remain in the left slot  20  and the right slot  30  respectively. Movement of the mount  70  downwardly in the direction of arrow  125  aligns the enlarged head portions  105   a ,  105   b ,  105   c  and  105   d  with necked-down regions  40   a ,  40   b ,  40   c , and  40   d  of the left slot  20  and the right slot  30  respectively and aligns the locking pin  110  with the enlarged head opening  105   e  of the center slot  25 . The width of the locking pin  110  may be greater than the upper passageway  130  and the lower passageway  135  through the necked-down regions  40   e  and  40   f  adjacent the enlarged head opening  105   e , which prevents further movement of the mount  70  once the locking pin  110  passes through the enlarged head opening  105   e  and into the center slot  25 . In embodiments where the locking pin  110  is biased toward its extended position, the locking pin  110  may snap into its extended position automatically once the locking pin  110  is aligned with the enlarged head opening  105   e . An operator can retract the locking pin  110  out of the center slot  25  by actuating any of the locking pin releases  115  and/or  120  described above and again move the mount  70  along the track  10  to a different elevation. 
     While  FIGS. 5 and 6  illustrate a mount  70  being secured to the track  10  using four mounting studs  95   a ,  95   b ,  95   c  and  95   d  and one locking pin  110 , it should be appreciated that any other number of mounting studs and locking pins may alternatively be employed. Such an embodiment may allow for a secured connection under increased loads by providing more points of contact between the mount  70  and the track  10 . In another embodiment, the mount  70  may incorporate eight mounting studs  95  evenly distributed about the mounting plate  80 . In yet another embodiment, any other number of mounting studs  95  may be disposed on the mounting plate  80  that allows for a releasable connection with the track  10 . The enlarged head portions  105  are sized to be received through the plurality of open regions  35  of the slots  20 ,  25  and  30  and may be captured behind necked-down regions  40 , while the stem portions  100  are sized to pass by the necked-down regions  40  of the slots  20 ,  25 , and  30 . 
       FIG. 7  is a side view of the mount  70  and track  10  locked together as described in  FIGS. 5 and 6 . The plurality of mounting studs  95  attached to the mount  70  are locked into the three slots,  20 ,  25 , and  30  of the track  10 . A plurality of equipment fasteners  155  may be used to secure the piece of equipment  75  to the mounting plate  80  of the mount  70  via the plurality of equipment mounting locations  150 . The terminal mount  140  may be biased outwardly away from the back surface  85 . The biasing force ensures that the plurality of electrical wipers  145  are electrically coupled to the plurality of electrical contacts  45 . As shown, for example, the number of electrical wipers  145  equals the number of electrical contacts  45 . The plurality of electrical wipers may have a subset of electrical wipers electrically coupled to a power source and a co-existing subset of electrical wipers that are electrically coupled to a data source or data sources. 
       FIG. 8  depicts the piece of equipment  75  attached to the track  10  using a mount  70 . The covers  50  are shown insulating the plurality of electrical contacts  45  ( FIG. 1 ) around the piece of equipment  75  resulting in only the plurality of electrical wipers  145  being electrically coupled to the plurality of electrical contacts. 
       FIG. 9  depicts a perspective view of an electrical adaptor  160 . The electrical adaptor  160  may be used to electrically couple the piece of equipment  75  ( FIG. 4 ) to a power source or a data source. A connector plate  165  serves as a base for the at least one mounting stud  95  and a locking mechanism  180 . The at least one mounting stud  95  may be secured to the first side  161  of the connector plate  165 . The locking mechanism  180  may be coupled to the second side  163  of the connector plate  165 . The locking mechanism  180  has a handle  185  that is operatively coupled to an adaptor locking pin  205  ( FIG. 11 ). The adaptor locking pin  205  may be disposed through the connector plate  165  and extends outwardly from the first side  161 . The locking mechanism  180  secures the electrical adaptor  160  to the track  10  or the fixed position plate  250  ( FIG. 11 ). The handle  185  is shown in the seated position in  FIG. 9 . When the handle  185  is in the seated position, the adaptor locking pin  205  is in a locked position or an extended position, i.e., the adaptor locking pin  205  extends outwardly from the first side  161 . When the handle  185  is moved to the unseated position, it moves the adaptor locking pin  205  to an unlocked position or a retracted position, i.e., the adaptor locking pin  205  is flush with the first side  161 . When the handle  185  is moved from the unseated to the seated position, the adaptor locking pin  205  moves from the unlocked position (or retracted position) to the locked position (or extended position). In alternative embodiments, the handle  185  and/or the adaptor locking pin  205  may be biased to the seated position and/or the locked position as set forth above using a biasing member, including but not limited to one or more springs, resilient materials, combinations thereof, etc. As an example, the handle  185  may compress a spring to provide the biasing force needed to extend or retract the adaptor locking pin. In other embodiments, the handle  185  may actuate a cam (not shown) that extends or retracts the adaptor locking pin. 
     The electrical conductor  175  electrically couples with a plurality of second electrical terminals  170 . The plurality of second electrical terminals  170  may be mounted on the connector plate  165 . In some embodiments, the plurality of second electrical terminals may be located on a front face  190  of the electrical adaptor  160  in a second terminal housing  195 . In some embodiments, the plurality of second electrical terminals  170  may protrude from the front face  190  when the handle  185  is in the seated position and be recessed when the handle  185  is in the unseated position. 
       FIG. 10  illustrates the electrical adaptor  160  attached to the track  10  and electrically coupled to the mount  70 . The electrical connector may be a first terminal housing  200  coupled to the front surface  90  which includes a plurality of first electrical terminals (not shown). The plurality of first electrical terminals and the plurality of second electrical terminals  170  align and electrically couple when the electrical adaptor  160  is placed on the track  10  and the handle  185  is in the seated position. For example, the first terminal housing  200  and the second terminal housing  195  are aligned when secured to the track  10 . It should be understood that the mount  70  is already locked into place but the disclosure is not limited to the mount  70  being placed on the track  10  first. The plurality of first electrical terminals and the plurality of second electrical terminals electrically couple the power source and/or data source or data sources to the piece of equipment  75 . Alternatively, the plurality of first electrical terminals and the plurality of second electrical terminals each may have a subset of electrical terminals electrically coupled to a power source and a co-existing subset of electrical terminals that are electrically coupled to a data source or data sources. In some embodiments, the plurality of first electrical terminals and the plurality of second electrical terminals may be a set of male and female plugs or they may be a set of electrically conductive rings or pads. 
       FIG. 11  illustrates another embodiment of the electrical adaptor  160  where the electrical conductor  175  uses the center slot  25  of the track  10  as shown in  FIG. 1  as a raceway to manage and secure the electrical conductor  175 . The electrical conductor  175  protrudes from the first side  161  of the connector plate  165 . It should be understood that the electrical conductor  175  may protrude from the first side  161  in any location to allow the use of any of the three slots  20 ,  25 , or  30  as a raceway. There may also be more than one electrical conductor  175  protruding from the first face  161 . The adaptor locking pin  205  is shown protruding from the first side  161  in the locked position or an extended position as described in  FIG. 9 . The adaptor locking pin  205  serves a similar function to the locking pin  110  of the mount  70  as shown in  FIG. 4 . The electrical conductor  175  electrically couples with the plurality of second electrical terminals  170 . 
     Referring now to  FIG. 12 , the electrical adaptor  160  with the electrical conductor  175  using the center slot  25  as a raceway is shown. Comparing this figure to  FIG. 10 , the electrical conductor  175  is managed and secured with the center slot  25  or alternatively the electrical conductor  175  may enter one of the plurality of raceway access points  65  ( FIG. 3 ) and use the plurality of wire raceways  60  to manage and secure the electrical conductor  175 . The plurality of first electrical terminals and the plurality of second electrical terminals electrically couple a power source and/or data source to the piece of equipment  75 . When the electrical adaptor  160  is placed on the track  10  such that the first terminal housing  200  and the second terminal housing  195  are aligned and the handle  185  is in the seated position, the plurality of first electrical terminals and the plurality of second electrical terminals  170  align and electrically couple together. In some embodiments, the plurality of first electrical terminals and the plurality of second electrical terminals may be a set of male and female plugs or they may be a set of electrically conductive rings or pads. 
       FIG. 13  is a front view a fixed position plate  250 , as an alternative to the track  10 . The fixed position plate  250  may be removably couple or attach to a mount  70  of  FIG. 4  or the electrical adaptor  160  of  FIG. 9 . The fixed position plate  250  may include any suitable mounting structure or fastening device for securing it to a surface. Fastening devices include but are not limited to screws, bolts, rivets, nails, adhesive, Velcro, weld, epoxy, or any similar devices that mechanically joins or affixes two or more objects together. Mounting structure includes but is not limited to a dove tail, hook and slot, tongue and groove, slideable coupled members, pin and slot, or any similar devices. In this illustrative embodiment, the fixed position plate  250  incorporates four mounting holes  255   a - d , to secure the fixed position plate  250  to the surface. The fixed position plate  250  also includes slots in the form of keyhole slots  260 ,  265 ,  270 , and  275 , each with an enlarged head opening  280  and a necked-down portion  285 . The enlarged head opening  280  of the keyhole slots  260 ,  265 ,  270 , and  275  are sized and arranged to receive the enlarged head portions  105   a ,  105   b ,  105   c , and  105   d , of  FIG. 4  therethrough and the necked-down portions  285  are sized to allow the stem portions  100  of  FIG. 4  to slide therein with the enlarged head portions  105   a ,  105   b ,  105   c , and  105   d , captured within the necked-down portions  285 . A locking pin opening  290  may be provided that is sized to receive the locking pin  110  of  FIG. 4  when the locking pin  110  is aligned with the locking pin opening  290 . 
       FIG. 14  depicts the track  10  with a plurality of target open regions  300  and non-target open regions  305 . The left slot  20  and the right slot  30  may include the target open regions  300  to accommodate the mounting stud  95  of  FIG. 4  or similar studs. In some embodiments, the target open regions  300  allow the mount  70  with a piece of equipment attached to it to slideably couple with the track  10  without the need for line of sight alignment of the mounting studs  95  with the open regions  35  of  FIG. 1 . The target open region  300  are larger in diameter and/or size than the non-target open regions  305 , which allows for more variability in the orientation of the mount  70  to the track  10  and still enables the correct engagement between the track  10  and the mount  70 . The target open regions  300  would not change the alignment of the terminal mount  140  to the plurality of electrical contacts  45 . In alternative embodiments (not shown), the track  10  may not include the non-target open regions  305 . It may include only a certain number of the target open regions  300  along tracks  20  and  30  and a neck down region running between the certain number of target open regions  300 . 
       FIG. 15  depicts the track  10  with a plurality of lock holes  310 . The center slot  25  as shown in  FIG. 14  may be replaced with the plurality of lock holes  310  to allow the locking pin  110  of  FIG. 4  to slideably couple an individual lock hole  310  to secure the mount  70  to the track  10 . In some embodiments, the left slot  20  and the right slot  30  may have the plurality of target open regions  300 , and non-target open regions  305  but they are not required. The alignment of the terminal mount  140  to the plurality of electrical contacts  45  would not change. 
       FIG. 16  depicts the track  10  without a center slot  25  as shown in  FIG. 14 . The left slot  20  and the right slot  30  may have the plurality of target regions  300  and the non-target open regions  305  but they are not required. A flat surface  315  allows for the locking pin  110  of  FIG. 4  to apply a biasing force to an even surface to create an interference fit between the mounting studs  95  and the necked-down regions  40  of the left slot  20  and the right slot  30 . The biasing force exerts a force to separate the mount  70  from the track  10 . The interference fit or friction fit, is a fastening device that fastens two parts by friction after the parts are pushed together. The alignment of the terminal mount  140  to the plurality of electrical contacts  45  would not change. 
     It should be understood that the application is not limited to the details or methodology set forth in the description or illustrated in the figures. It should also be understood that the terminology is for the purpose of description only and should not be regarded as limiting. Certain terminology is used in the following description for convenience only and is not limiting. The words “left”, “right”, “front”, “back”, “upper”, and “lower” designate directions in the drawings to which reference is made. The terminology includes the words noted above as well as derivatives thereof and words of similar import. 
     It is noted that the terms “substantially” and “about” may be utilized herein to represent the inherent degree of uncertainty that may be attributed to any quantitative comparison, value, measurement, or other representation. These terms are also utilized herein to represent the degree by which a quantitative representation may vary from a stated reference without resulting in a change in the basic function of the subject matter at issue. 
     While particular embodiments have been illustrated and described herein, it should be understood that various other changes and modifications may be made without departing from the spirit and scope of the claimed subject matter. Moreover, although various aspects of the claimed subject matter have been described herein, such aspects need not be utilized in combination. It is therefore intended that the appended claims cover all such changes and modifications that are within the scope of the claimed subject matter.