Patent Publication Number: US-2023133782-A1

Title: Partition system

Description:
TECHNICAL FIELD 
     The present disclosure relates to screens or partition walls that are configured to subdivide a defined space. 
     BACKGROUND 
     Partition walls may be utilized to subdivide a defined space. 
     SUMMARY 
     A partition system includes a primary wall and a secondary wall. The primary wall has a first frame. The secondary wall has a second frame that is secured to the first frame via a hinge such that the secondary wall is rotatable about an axis relative to the primary wall. The hinge is arranged such that adjacent side edges of the first and second frames define a gap therebetween when the secondary wall is in a nonplanar position relative to the primary wall. The hinge is further arranged such that the adjacent side edges of the first and second frames contact each other and close the gap when the secondary wall is in a substantially planar position relative to the primary wall. 
     A partition system includes a primary wall, a secondary wall, and an extension panel. The primary wall has a first frame. The secondary wall has a second frame that is secured to the first frame such that the secondary wall is rotatable about an axis relative to the primary wall. The second frame defines an internal cavity and a slot along an outer side edge. The extension panel is slidably secured to the second frame within the internal cavity. The extension panel is configured to slide at least partially into and out of the internal cavity via the slot. 
     A partition system includes a primary wall, a secondary wall, and a subdivider panel. The primary wall has a first frame. The secondary wall has a second frame secured to the first frame such that the secondary wall is rotatable about a first axis between a substantially planar position and a nonplanar position relative to the primary wall. The subdivider panel is rotatably secured to the second frame such that the subdivider panel is configured to pivot about a second axis relative to the second frame. The subdivider panel is configured to transition between a first position that is substantially parallel with the secondary wall and a second position that radially offset from secondary wall along the second axis. 
     A partition system includes support base, a primary wall, and a secondary wall. The primary wall has a first frame rotatably secured to the support base such that the primary wall is configured to pivot about a first substantially vertical axis relative to the support base. The secondary wall has a second frame secured to the first frame via a hinge such that the secondary wall is rotatable about a second substantially vertical axis relative to the primary wall. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG.  1    is an isometric front view of a partition system; 
         FIG.  2    is an isometric view of a frame for a primary wall of the partition system; 
         FIG.  3    is a top view of the partition system; 
         FIG.  4    is an isometric view of a hinge that rotatably connects primary and secondary walls of the partition system to each other with the primary and secondary walls in non-planar positions relative to each other; 
         FIG.  5    is an isometric view of the hinge with the primary and secondary walls in substantially planar positions relative to each other; 
         FIG.  6    is a cross-sectional view of a top portion of the primary wall taken along line  5 - 5  in  FIG.  1   ; 
         FIG.  7    is a cross-sectional view of adjacent side portions of primary and secondary walls taken along line  6 - 6  in  FIG.  1   ; 
         FIG.  8    is a top view of a portion of the primary frame illustrating a support block; 
         FIG.  9    is a partial view of the partition system illustrating an extension panel; and 
         FIG.  10    is a partial view of the partition system illustrating a sliding mechanism for the extension panel. 
     
    
    
     DETAILED DESCRIPTION 
     Embodiments of the present disclosure are described herein. It is to be understood, however, that the disclosed embodiments are merely examples and other embodiments may take various and alternative forms. The figures are not necessarily to scale; some features could be exaggerated or minimized to show details of particular components. Therefore, specific structural and functional details disclosed herein are not to be interpreted as limiting, but merely as a representative basis for teaching one skilled in the art to variously employ the embodiments. As those of ordinary skill in the art will understand, various features illustrated and described with reference to any one of the figures may be combined with features illustrated in one or more other figures to produce embodiments that are not explicitly illustrated or described. The combinations of features illustrated provide representative embodiments for typical applications. Various combinations and modifications of the features consistent with the teachings of this disclosure, however, could be desired for particular applications or implementations. 
     Many of the workers in today&#39;s workforce are transitioning to a work-from-home setting. This has many advantages for both employees and employers. For example, employee commute time is eliminated, costs associated with commuting (e.g., fuel cost, public transportation cost, etc.) is eliminated, the required amount commercial space to operate is reduced, etc. Working from home, however, may have some drawbacks. For example, with the advent of facetime meetings the decor within the background of one&#39;s home may not represent a desired professional environment. On the other hand, it is also not desirable to transition the decor of one&#39;s home into a traditional workspace. The partition system described herein solves this problem. More specifically, the partition system may be arranged such that a first side has a more office friendly decor and a second side has a more home friendly decor. The first side of the partition system, having the more office friendly decor, may be placed within the field of view of the camera capturing video during facetime meetings such that the first side of the partition system encompasses the entire background of the camera&#39;s field of view. The second side of the partition system, having the more home friendly decor, may be positioned toward the main living space within the home. 
     Referring to  FIGS.  1  and  2    the partition system  20  is illustrated. The partition system  20  includes a first or primary wall  22 , a second or secondary wall  24 , and a third or tertiary wall  26 . The primary wall  22  may be referred to the center wall while the secondary wall  24  and the tertiary wall  26  may be referred to as opposing side walls that are disposed on opposite sides of the primary wall  22 . The primary wall  22  has a first frame  28 . The first frame  28  encompasses the outer perimeter or periphery of the primary wall  22 . The secondary wall  24  has a second frame  30 . The second frame  30  encompasses the outer perimeter or periphery of the secondary wall  24 . The tertiary wall  26  has a third frame  32 . The third frame  32  encompasses the outer perimeter or periphery of the tertiary wall  26 . The secondary wall  24  and the tertiary wall  26  are secured to opposing sides of the primary wall  22 . More specifically, the second frame  30  and the third frame  32  may be secured to opposing sides of the first frame  28  via hinges  34 , such that the secondary wall  24  and the tertiary wall  26  are secured to and rotatable relative to the primary wall  22 . 
     The second frame  30  and the third frame  32  each include a top member  36 , a bottom member  38 , and two side members  40  forming a box or rectangular shape. The first frame  28  may have a similar structure as the second frame  30  and the third frame  32  (i.e., the first frame  28  may have a top member, a bottom member, and two side members forming a box or rectangular shape). Alternatively, and as showing in  FIG.  2   , the first frame  28  may include a series of stacked sub-frames  42 , each sub-frame  42  including a top member  44 , a bottom member  46 , and two side members  48  forming a box or rectangular shape. Top members  44  and bottom members  46  of adjacent sub-frames  42  may be secured to each other via fasteners  50 . The fasteners  50  maybe any type of fastener. However, a combination of threaded fastener extending through orifices defined in the top and bottom members  44 ,  46  and a thumb nut may be preferable for ease of assembly and disassembly. 
     The first frame  28  may also have a wider base or footprint relative to the second frame  30  and the third frame  32 . Therefore, additional support members  52  may be secured to the sub-frames  42  within the spaces defined between the top members  44 , bottom members  46 , and side members  48  of the sub-frames  42 . The additional support members  52  may be secured to top members  44  and bottom members  46  via fasteners. 
     The partition system  20  may further include a support base  54 . The primary wall  22  maybe secured to the support base  54 . More specifically, the first frame  28  of the primary wall  22  may be rotatably secured to the support base  54  such that the primary wall  22  is configured to pivot about a first axis  56  relative to the support base  54 . The first axis  56  may be a substantially vertical axis. Substantially vertical may refer to any incremental angle that is between exactly vertical and 15° from exactly vertical. A post  58  may extend upward from the base  54  and through an orifice defined in the lower bottom member  44  of the first frame  28 . A bushing  60  may be disposed within the orifice defined in the lower bottom member  44  of the first frame  28 . The bushing  60  may be rigidly affixed to the lower bottom member  44  of the first frame  28 . The post  58  may be rigidly affixed to the base  54  and may extend through the bushing  60 . The post  58  may be secured to the base  54  via a fastener and a keyed engagement between a protrusion on the bottom of the post  58  and a keyed orifice defined in the base  54  in order to prevent relative rotational movement between the post  58  and the base  54 . The entire primary wall  22  may be configured to pivot about the first axis  56  relative to the support base  54  via relative rotational movement between the bushing  60  and the post  58 . 
     An A-frame support  62  may be rigidly secured to the top of the lower bottom member  44  of the first frame  28  and rotatably secured to the post  58  to provide additional support to the first frame  22 . More specifically, the A-frame support  62  may be rotatably secured to the post  58  via a pin or fastener  64  that engages the post  58 . The fastener  64  may include threads that engage either the post  58  or the A-frame support  62  and an unthreaded portion that engages the other of the post  58  or the A-frame support  62  so that the fastener  64  is rigidly affixed to the one of the post  58  and the A-frame support  62  and rotatably engages the other of the post  58  and the A-frame support  62 . A first washer  66  may be disposed between the A-frame support  62  and the post  58  in order to reduce or absorb the friction between the A-frame support  62  and the post  58  during rotation of the primary wall  22  relative to base  54 . A second washer  68  may be disposed between the A-frame support  62  and the fastener  64  in order to reduce or absorb the friction between the A-frame support  62  and the fastener  64  during rotation of the primary wall  22  relative to base  54 , particularly if the fastener  64  is rigidly secured to the post  58  and rotatably secured to the A-frame support  62 . If the fastener  64  is rotatably secured to the post  58  and rigidly secured to the A-frame support  62 , the second washer  68  may not be required. 
     Referring now to  FIGS.  1 - 5  and  8   , the hinges  34  are described in further detail. It is noted that  FIGS.  4  and  5    only depict the primary wall  22  secondary wall  24 . However, it should be understood that the tertiary wall  26  may be a mirror image of the secondary wall  24  and that any description in  FIGS.  4  and  5    with respect to the primary wall  22  and the secondary wall  24  will be equally applicable to a description of the primary wall  22  and the tertiary wall  26  albeit with the understanding the that tertiary wall  26  is a mirror image of the secondary wall  24 . It is further noted that the hinges  34  depicted in  FIGS.  4  and  5    depict the hinges  34  on the top side of the partition system  22 . However, it should be understood that the hinges  34  depicted in  FIGS.  4  and  5    may also represent the hinges  34  on the bottom side of the partition system  22  as well. Simply rotating the images in  FIGS.  4  and  5    by 180° may be construed as a representation of the hinges  34  on the bottom side of the partition system  20 . 
       100251  The second frame  30  and the third frame  32  are each secured to first frame  28  via a pair of hinges  34  (i.e., one hinge along the top and one hinge along the bottom for each connection) such that secondary wall  24  and the tertiary wall  26  are each rotatable about relative to the primary wall  22 . More specifically, the secondary wall  24  may be rotatable about the hinges  34  relative to the primary wall  22  via a second axis  70  and the tertiary wall  26  may be rotatable about the hinges  34  relative to the primary wall  22  via a third axis  72 . The second axis  70  and the third axis  72  may each be substantially vertical axes. Substantially vertical may refer to any incremental angle that is between exactly vertical and 15° from exactly vertical. 
     The hinges  34  are arranged such that adjacent side edges  74  of the first frame  28  and the second frame  30  are sufficiently spaced apart to define a gap  76  therebetween when the secondary wall  24  is in a nonplanar position relative to the primary wall  22 . The secondary wall  24  being in a nonplanar position relative to the primary wall  22  is depicted in  FIGS.  3  and  4   . The hinges  34  are also arranged such that adjacent side edges  74  of the first frame  28  and the second frame  30  contact each other and close the gap  76  when the secondary wall  24  is in a substantially planar position relative to the primary wall  22 . Substantially planar may refer to any incremental relative angle between two of the walls (e.g., the primary wall  22  and secondary wall  24  or the primary wall  22  and tertiary wall  26 ) that is between exactly planar (i.e., where the walls are exactly on the same plane) and 10° from exactly planar. The secondary wall  24  being in a substantially planar position relative to the primary wall  22  is depicted in  FIGS.  1  and  5   . 
     The hinges  34  each include a first plate  78  that is secured to the first frame  28 , a second plate  80  that is secured to the second frame  30 , and a pivot  82  that defines the second axis  70  and rotatably secures the first plate  78  to the second plate  80 . The pivot  82  may be horizontally offset from the first frame  28  and the second frame  30 . Stated in other terms the pivot  82 , and the portions both the first plate  78  and the second plate  80  that receive the pivot  82 , overhang the first frame  28  and the second frame  30 . The pivot  82  may be a pin or a fastener. If the pivot  82  is a fastener, the pivot  82  may extends through a through hole defined by the second plate  80  and may engage a threaded orifice defined by the first plate  78 , or vice versa. The second plate  80  may define a notch  84  configured to receive the first plate  78  when the secondary wall  24  is in the substantially planar position relative to the primary wall  22 , or vice versa. 
     The hinges  34  may be secured to the frames (i.e., first frame  28 , second frame  30 , or third frame  32 ) via fasteners  86 . More specifically, each first plate  78  and each second plate  80  may be secured to blocks  88  (See  FIG.  8   ) that are disposed within spaces or cavities defined within the top members  44  and the bottom members  46  of the first frame  28  and within the top members  36  and bottom members  38  of the second and third frames  30 ,  32 . The blocks  88  provide additional stability and rigidity to the frames (i.e., first frame  28 , second frame  30 , and third frame  32 ) along the hinges  34 . The blocks  88  may be secured to the respective members (e.g., top member  44 , bottom member  46 , top member  36  or bottom member  38 ) via fasteners  90  that extend through a series of through holes, which may be countersunk holes, defined in the respective members and engage tapped holes defined within the blocks  88 . Each first plate  78  and second plate  80  are in turn secured to one of the blocks  88  via the fasteners  86 , which extend through a series of through holes  92  defined in the respective members and engage tapped holes defined within the blocks  88 . 
     Referring now to  FIGS.  1  and  3 - 5   , subdivider panels are illustrated in further detail. A first subdivider panel  94  is rotatably secured to the second frame  30  and a second subdivider panel  96  is rotatably secured to the third frame  32 . The first subdivider panel  94  is configured to rotate about a fourth axis  98  relative to the second frame  30  and the second subdivider panel  96  is configured to rotate about a fifth axis  100  relative to the third frame  32 . The subdivider panels  94 ,  96  may be rotatably secured to the hinges  34  via a pivot  102 . Each subdivider panel  94 ,  96  may be secured to two hinges  34  via two pivots  102 , one along the top of the partition system  20  and one along the bottom of the partition system  20 . Simply rotating the image in  FIG.  4    by 180° may be construed as representative of an engagement between the subdivider panels  94 ,  96  and hinges  34  via the pivots  102  on the bottom side of the partition system  20 . 
     Each pivot  102  may be a pin or a fastener. More specifically, each pivot  102  may be a fastener and thumb nut combination or a thumb screw for ease of assembly and disassembly. If the pivots  102  are thumb screws, each pivot  102  may extend through a through hole defined by an offset arm  104  that extends from each subdivider panels  94 ,  96  and may engage a tapped hole  106  defined by either the first plate  78  or the second plate  80  of the hinge. If the pivots  102  are fastener and thumb nut combinations, hole  106  may also be a through hole. A friction reducing pad or plate  108  may be disposed between each offset arm  104  and the first plate  78  or the second plate  80  in order to reduce or absorb the friction between the offset arms  104  and the first plates  78  or the second plates  80  while the subdivider panels  94 ,  96  are being rotated. 
     The first subdivider panel  94  and the second subdivider panel  96  are each configured to transition between first positions  110  that are substantially parallel with the secondary wall  24  and tertiary wall  26 , respectively, and second positions  112  that are radially offset from secondary wall  24  and tertiary wall  26 , respectively, relative to the fourth and fifth axes  98 ,  100 , respectively. The second subdivider panel  96  is shown to be in the first position  110  in  FIG.  3    while the first subdivider panel  94  is shown to be in the second position  112  in  FIG.  3   . It is noted that the second positions  112  may include any position that is not substantially parallel with a respective wall up to an outermost position at a maximum radial offset from a respective wall. The maximum radial offset may be set by physical stops or by interference with other components of the partition system  20 . 
     Referring to  FIGS.  1 ,  3 , and  9 - 10   , an extension panel system is illustrated in further detail. It is noted that the Figures only depict the extension panel system that is secured to the secondary wall  24 . However, it should be understood that since the tertiary wall  26  may be a mirror image of the secondary wall  24 , any description in  FIGS.  3  and  9 - 10    with respect the to the extension panel system that is secured to the secondary wall  24  will be equally applicable to a description of the tertiary wall  26  albeit with the understanding the that tertiary wall  26  is a mirror image of the secondary wall  24 . 
     The extension panel system includes an extension panel  114  that is slidable into and out of the secondary wall  24 . The extension panel  114  effectively increases the overall width the secondary wall  24  when extended, as illustrated in  FIGS.  3  and  10   . The extension panel  114  effectively decreases the overall length of the secondary wall  24  when retracted, as illustrated in  FIG.  1   . The second frame  30  defines an internal cavity  116  and a slot  118  along an opposing side edge (e.g., side members  40 ) that is opposite relative to the adjacent side edges  74 . The extension panel  114  is slidably secured to the second frame within the internal cavity  116  and is configured to slide at least partially into and out of the internal cavity  116  via the slot  118 . 
     The extension panel  114  may be secured to the second frame  30  by any slidable mechanism known in the art (e.g., a ball screw/ball nut combination, via roller or ball bearings disposed within a linear guide, bearing and rail combination, etc.). More, specifically, the extension panel  114  may be secured (e.g., via fasteners) to one or more bearing blocks  120  that are slidable along rails  122 . The rails  122  in turn may be secured (e.g., via fasteners) to the second frame  30  within the internal cavity  116 . The extension panel  114  has been removed in  FIG.  10    for ease of illustration. It is noted that only one bearing block  120  and rail  122  combination is illustrated along the bottom of the internal cavity  116  (i.e., the rail  122  is secured to the bottom member  38  and the block  120  is secured to the bottom of the extension panel  114 ). However, it should be understood that a second block  120  and rail  122  combination may be secured to the second frame  30  along the top of the internal cavity  116  (i.e., the second rail  122  may be secured to the top member  36  and the second block  120  may secured to the top of the extension panel  114 ). Simply rotating the image in  FIG.  10    by 180° and renumbering bottom member  38  as top member  36  may be construed as representative of a second block  120  and rail  122  combination disposed along the top of the internal cavity  116 . 
     Referring to  FIGS.  6  and  7    in conjunction with  FIGS.  1 ,  4 - 5 , and  10   , a graphic display system and various internal components of the partition system  20  are illustrated in further detail. It is noted that  FIGS.  6  and  7    only depict the graphic display system and the various internal components of the partition system  20  with respect to the primary wall  22  and the secondary wall  24 . However, it should be understood that since the tertiary wall  26  may be a mirror image of the secondary wall  24 , any description in  FIGS.  6  and  7   , and any other Figure, with respect the to the graphic display system and the various internal components of the partition system  20  will be equally applicable to a description of the tertiary wall  26  albeit with the understanding the that tertiary wall  26  is a mirror image of the secondary wall  24 . 
     The members forming the frames of each wall may be constructed to have a particular functional cross-sectional shape. More specifically, the members forming the frames of each wall may have features, such as protrusions or extensions, defining internal spaces, channels, T-slots, etc. The members forming the frames of each wall may be extruded components, such as extruded aluminum or extruded plastic components. The cross-section  124  in  FIG.  6    is shown as representing one of the top members  44  of the first frame  28 . However, each top member  44  and bottom member  46  of the first frame  28 , and each top member  36  and bottom member  38  of the second frame  30  or third frame  32 , may have the same cross-sectional shape as illustrated in  FIG.  6   . The bottom members  46 ,  38 , however, will be mirror images of what is illustrated in  FIG.  6   . The cross-sections  126 ,  128  in  FIG.  7    are show as representing one of the side members  48  of the first frame  28  and an adjacent side member  40  of the second frame  30 , respectively. It should be understood that the two side members  48  of each sub-frame  42  will be mirror images of each other, the two side members  48  of the second frame  30  will be mirror images of each other, and the two side members  48  of the  30  third frame  32  will be mirror images of each other. 
     Each cross-section  124 ,  126 ,  128  defines outwardly facing T-slots  130 . The outwardly facing T-slots  130  are configured to receive L-brackets  132 . The L-brackets  132  are depicted in  FIGS.  4 - 5  and  10   . The L-brackets  132  secure adjacent members to each other. For example, the L-brackets  132  secure the top members  44  to the side members  48 , the bottom members  46  to the side members  48 , the top members  36  to the side members  40 , and the bottom members  46  to the side members  40 . Fasteners  134  may engage threaded holes defined by the L-brackets  132  to secure the L-brackets  132  to the corresponding members. 
     Each cross-section  124 ,  126 ,  128  also defines outwardly extending channels  136 . The adjacent members (e.g., top members  36 ,  44 , bottom members  38 ,  46 , and side members  40 ,  48 ) of each frame (e.g., the first frame  28 , second frame  30 , and third frame  32 ) are arranged such that the channels  136  of the members align to form a single channel that extends along or about an outer periphery of each wall (i.e., primary wall  22 , secondary wall  24 , and tertiary wall  26 ). In the case of the primary wall  22 , notches may be cut into some of the members (e.g., top members,  44 , bottom members  46 , and/or side members  48 ) so that the single channel that extends along or about the outer periphery of the primary wall  22  is connected between adjacent sub-frames  42 . Alternatively, such notches may be omitted so that the primary wall  22  includes separate channels that extend along or about an outer periphery of each sub-frame  42 . 
     Graphic displays  138  may be disposed with the channels  136 . More specifically, the graphic displays  138  may have outer edges  140  that are disposed within the channels  136  and an image portion  142  that within the outer edges. The graphic displays may more specifically be silicone edge graphics (SEGs). The graphic displays  138  may cover an area on both sides of each wall (i.e., primary wall  22 , secondary wall  24 , and tertiary wall  26 ) that has an outer perimeter formed by the single channel that extends along or about the outer periphery of each wall. In the alternative, if the primary wall  22  includes separate channels that extend along or about the outer periphery of each sub-frame  42 , then separate graphic displays  138  may be disposed on both sides of each sub-frame, where each graphic display  138  covers an area that has an outer perimeter formed by the single channel that extends along or about the outer periphery of each sub-frame  42 . The image portion  142  of the graphic displays  138  along one side of the partition system  22  may have a more office friendly image or decor (e.g., a company logo) while the image portion  142  of the graphic displays  138  along the other side of the partition system  22  may have a more home friendly decor (e.g., artwork that is to the liking of the homeowner). 
     Sound proofing  144  boards may be disposed within the internal spaces  146  of each wall (i.e., primary wall  22 , secondary wall  24 , and tertiary wall  26 ). The sound proofing boards  144  may also function as or may be replaced by filters to filter the air around the partition system  20 . Additional T-slots  148  or other channels (e.g., cutouts in the top members  36 ,  44 , bottom members  38 ,  46 , and/or side members  40 ,  48 ) may be defined by the walls (i.e., primary wall  22 , secondary wall  24 , and tertiary wall  26 ) or frames (i.e., first frame  28 , second frame, and  30  third frame  32 ). The additional T-slots  148  may be utilized to mount addition structures or devices within the internal spaces  146 . The additional T-slots  148  or other channels (e.g., cutouts in the top members  36 ,  44 , bottom members  38 ,  46 , and/or side members  40 ,  48 ) may be utilized to route electrical wires to various devices that may be used in conjunction with or are mounted to the partition system  20  (e.g., lamps, fans for filtrations system, etc.). 
     It is noted that the cross-section in  FIG.  6    is illustrated as representative of a top portion of the primary wall  22  including the top member  44  of the first frame  22 . However, it should be understood that  FIG.  6    may also be representative of the top portion of either the secondary wall  24  or the tertiary wall  26  or a bottom portion of any of the walls (i.e., the primary wall  22 , secondary wall, and  24  tertiary wall  26 ) when rotated 180°. 
     It is also noted that at least some of the walls and their corresponding frames are depicted as having a flat side (see the side of the primary wall  22  facing the bottom of the page in  FIG.  3   ) and a curved or bowed side (see the side of the primary wall  22  facing the top of the page in  FIG.  3   ). However, it should be understood that each wall (i.e., the primary wall  22 , secondary wall, and  24  tertiary wall  26 ) and the corresponding frame (i.e., the first frame  28 , second frame  30 , and third frame  32 ) to each wall may have two flat sides, two bowed sides, or a combination of one flat side and one bowed side. 
     Referring to  FIG.  1   , an air channel  150  may be defined within one or more of the walls (i.e., primary wall  22 , secondary wall  24 , and tertiary wall  26 ) or frames (i.e., first frame  28 , second frame, and  30  third frame  32 ). An air filter  152  may be disposed within the air channel  150 . An air mover  154  (e.g., a fan) may be configured to direct air through the air channel  150  and across the air filter  152 . The air mover  154  may receive electrical power from electrical cables that are routed through various internal channels. 
     It should be understood that the designations of first, second, third, fourth, etc. for any component, state, or condition described herein may be rearranged in the claims so that they are in chronological order with respect to the claims. 
     The words used in the specification are words of description rather than limitation, and it is understood that various changes may be made without departing from the spirit and scope of the disclosure. As previously described, the features of various embodiments may be combined to form further embodiments that may not be explicitly described or illustrated. While various embodiments could have been described as providing advantages or being preferred over other embodiments or prior art implementations with respect to one or more desired characteristics, those of ordinary skill in the art recognize that one or more features or characteristics may be compromised to achieve desired overall system attributes, which depend on the specific application and implementation. As such, embodiments described as less desirable than other embodiments or prior art implementations with respect to one or more characteristics are not outside the scope of the disclosure and may be desirable for particular applications.