Abstract:
A spring clip for use with a cable eyelet, a cable assembly incorporating the spring clip and a method of using the spring clip to bias a cable attached to the cable eyelet toward a fastener extending outwardly from a structure. The fastener is received through an aperture in the cable eyelet. The cable eyelet is itself secured to an end of the cable. The cable eyelet, defines an aperture therein and the aperture receives the fastener therethrough. The spring clip includes a first region that is securable to the cable eyelet and a second region extending outwardly from the first region in a direction opposite to the cable. The hook-shaped second region is configured to engage the head of the fastener and to bias the cable toward the fastener thus reducing the tendency of the cable to appear slack.

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
       [0001]    This application claims the benefit of U.S. Provisional Application Ser. No. 62/007,669, filed Jun. 4, 2014, the entire specification of which is incorporated herein by reference. 
     
    
     BACKGROUND OF THE INVENTION 
       [0002]    1. Technical Field 
         [0003]    The present invention relates to a cable assembly. More particularly, the present invention relates to a cable assembly for use in ensuring an associated cable is sufficiently tensioned while secured to a support structure. Specifically, the present invention relates to providing a cable assembly having a biasing member secured to a first end of a cable for maintaining tension on the cable through a range of displacement on the second end of the cable. 
         [0004]    2. Background Information 
         [0005]    Cables are used in a variety of fields to securely hold and support components. For example, heavy duty cables may be used to suspend duct systems and raceways in plants or factories or may be used to suspend bridges or cable cars. Lighter duty cables may be utilized to perform functions like supporting a tailgate on a truck so that the tailgate may adequately hold a load being moved thereover. Wherever they are used cables need to be placed under an appropriate tension in order to perform properly. Too much tension and the integrity of the cable may be compromised. Too little tension and the cable may not be able to perform the task for which it was installed. 
         [0006]    As indicated above, lighter duty cables may aid in supporting a pickup truck&#39;s tailgate when in an open position and while goods are being moved across the tailgate during loading or unloading. Typically, a pair of cables is used to perform this task with the cables being secured to opposite ends of the tailgate. A first end of each cable is secured to one of the sidewalls of the truck box and the second end is secured to the tailgate. Tailgate cables are typically installed between the d-pillar of the truck box and the top of the tailgate. Neither the cable lengths nor the attachment points used for securing the cables are adjustable. 
         [0007]    Variations in the manufacturing of truck pickup boxes may result in one of the tailgate cables appearing to be slack when the tailgate is in the open position while the other tailgate cable appears to be taut. This disparity may lead a consumer to conclude that there is a defect in one of the cables or in the tailgate or in the pickup box when this is actually not the case. Even if one cable appears to be slack and the other cable appears taut, the cables are still effective at supporting loads moved thereacross. However, this may not be the consumer&#39;s perception and they may therefore be unhappy with the truck they have purchased. 
       BRIEF SUMMARY 
       [0008]    There is therefore a need in the industry for a way to place a pickup truck tailgate cable under the correct tension or to adjust the tension if needed and thereby tend to reduce slackness and/or the appearance of slackness in the cable. One such cable tensioning assembly for lighter duty cables is disclosed herein. 
         [0009]    Disclosed herein is a spring clip for use with a cable eyelet, a cable assembly incorporating the spring clip and a method of using the spring clip to bias a cable attached to the cable eyelet toward a fastener extending outwardly from a structure. The fastener is received through an aperture in the cable eyelet. The cable eyelet is itself secured to an end of the cable. The cable eyelet, defines an aperture therein and the aperture receives the fastener therethrough. The spring clip includes a first region that is securable to the cable eyelet and a second region extending outwardly from the first region in a direction opposite to the cable. The hook-shaped second region is configured to engage the head of the fastener and to bias the cable toward the fastener thus reducing the tendency of the cable to appear slack. 
         [0010]    The addition of tension to the cable through use of the tensioning assembly will tend not to impact the integrity of the cable and will not tend to reduce the size of the load that the cables can support. 
         [0011]    In one aspect, the invention may provide a spring clip for use with a cable eyelet that is secured to an end of a cable, where the cable eyelet defines an aperture therein and the aperture receives a fastener therethrough, wherein the fastener extends outwardly from a structure; and wherein the spring clip comprises a first region adapted to be secured to the cable eyelet; and a second region extending outwardly from the first region in a direction opposite to the cable; and wherein the second region is adapted to engage the fastener and to bias the cable toward the fastener. 
         [0012]    In another aspect, the invention may a cable assembly comprising a cable having a first end and a second end; a first connector secured to the first end of the cable; an opening defined by the connector and adapted to selectively surround a fastener extending outwardly from a structure to which the cable is to be secured; and a second connector secured to the first connector, wherein the second connector is adapted to abut the fastener when the fastener is surrounded by the opening and the second connector biases the cable towards the fastener when so engaged. 
         [0013]    In another aspect, the invention may provide a method of attaching and tensioning a cable to a structure; said method comprising the steps of providing a cable assembly having a first connector and a second connector; securing the first connector of the cable assembly to a first end of the cable; securing the second connector to the first connector; surrounding a first portion of a fastener extending outwardly from the structure with the first connector; and abutting a second portion of the fastener with the second connector to bias the cable towards the fastener. 
     
    
     
       BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS 
         [0014]    A sample embodiment of the invention is set forth in the following description, is shown in the drawings and is particularly and distinctly pointed out and set forth in the appended claims. 
           [0015]      FIG. 1  is a front view of a rear end of a truck box showing a first end of a cable secured to a sidewall of the truck and tensioned by way of the cable tensioning assembly in accordance with an aspect of the present invention; 
           [0016]      FIG. 2A  is a front view of a first PRIOR ART cable eyelet securing a first end of a cable to a fastener extending inwardly from the sidewall of a truck box; 
           [0017]      FIG. 2B  is a front view of a second PRIOR ART cable eyelet securing a first end of a cable to a fastener extending inwardly from the sidewall of a truck box; 
           [0018]      FIG. 3  is an enlarged front view of the highlighted region of the cable tensioning assembly shown in  FIG. 1  and in accordance with an aspect of the present invention; 
           [0019]      FIG. 3A  is an enlarged front view of the highlighted region shown in  FIG. 3 ; 
           [0020]      FIG. 4  is a front view of the first end of the cable with the cable tensioning assembly separated from the fastener on the sidewall of the truck box; 
           [0021]      FIG. 5  is an exploded perspective view of the first connector and of the cable tensioning assembly; 
           [0022]      FIG. 6  is a side view of the cable tensioning assembly; 
           [0023]      FIG. 7  is a top view of the cable tensioning assembly; 
           [0024]      FIG. 8  is a side view of the first connector, the first end of the cable and the cable tensioning assembly taken along line  8 - 8  of  FIG. 3 ; 
           [0025]      FIG. 9  is a cross-sectional view of the first connector, the first end of the cable and the cable tensioning assembly taken along line  9 - 9  of  FIG. 3 ; 
           [0026]      FIG. 10  is a front view of the first connector, the first end of the cable and the cable tensioning assembly tensioning the cable. 
       
    
    
       [0027]    Similar numbers refer to similar parts throughout the drawings. 
       DETAILED DESCRIPTION 
       [0028]      FIG. 1  is a view of a truck box  10 , a tailgate  12 , and a cable assembly  14  that secures tailgate  12  to a sidewall  16  of truck box  10 . The view shown in  FIG. 1  is referred to herein as being a front view and all subsequent views are therefore described with reference to this orientation of the components of the cable assembly  14 . 
         [0029]    Various non-novel features found in the prior art relating to cable manufacture are not discussed herein. The reader will readily understand the fundamentals of cable manufacture and fabrication are well within the prior art and readily understood by one familiar therewith. 
         [0030]    Cable assembly  14  broadly includes a first connector secured to a first end of a cable and a second connector secured to the first connector. More particularly, cable assembly  14  includes a cable  18 , a first connector, namely, cable eyelet  20  and sleeve  22 ; and a second connector in the form of a cable tensioning assembly which engages the cable eyelet  18  and sleeve  22 . 
         [0031]    Cable  18  has a first end  18   a  and a second end  18   b . First end  18   a  is secured to sidewall  16  and second end  18   b  is secured to tailgate  12 . Cable assembly  14  is used to connect first end  18   a  of cable  18  to sidewall  16  and to increase the tension in cable  18  to a degree sufficient to reduce slackness in cable  18 . The first connector comprises cable eyelet  20  and sleeve  22  where sleeve  22  is used to connect first end  18   a  of cable  18  to cable eyelet  20 . Cable eyelet  20 , in turn, engages a fastener  24  extending outwardly from an inner surface of sidewall  16 . In accordance with an aspect of the present invention, the second connection, i.e., the cable tensioning assembly, may comprise a spring clip  26  ( FIG. 3 ) which engages the first connector and the fastener  24 . These various components will be discussed in greater detail later herein. 
         [0032]      FIGS. 2A and 2B  show two PRIOR ART cable assemblies that have been used in the industry to secure tailgate cables to fasteners extending outwardly from an inner surface of a sidewall of a truck body. These PRIOR ART cable assemblies include cable eyelets that do not apply sufficient tension to reduce the appearance of slackness in the cable which they attach to the truck sidewall.  FIG. 2A  shows a first PRIOR ART cable eyelet  100  that secures a cable  102  to a fastener  104  extending outwardly from a sidewall  106  of a truck box. The first end of cable  102  extends through a bore (not shown) in a sleeve  108  and sleeve grips the first end or is secured in some known manner thereto. Sleeve  108  also engages a base region of cable eyelet  100 . Cable eyelet  100  comprises a plate that defines an aperture  110  therein. The plate is positioned so that a head of fastener  104  will pass through aperture  110 . The plate may be oriented at a slight angle relative to sleeve  108  so that it is easier to cause the plate to capture fastener  104  in aperture  110 . If the aperture  110  is keyhole-shaped then the plate of cable eyelet  100  is first moved relative to fastener  104  so that the shaft of that fastener  104  moves from a wider region of the aperture  110  to a narrower region thereof. 
         [0033]    Once the fastener shaft is captured in aperture  110  the head thereof extends at least partially across an exterior surface of the plate of cable eyelet  100 . Fastener  104  is then rotated to secure the plate of cable eyelet  100  against sidewall  106 . In this PRIOR ART cable assembly the tension in cable  102  is determined by the position at which the fastener head or a washer used in conjunction with the fastener head contacts the plate of cable eyelet  100 . 
         [0034]      FIG. 2B  shows a second embodiment of a PRIOR ART cable eyelet  200  which secures a cable  202  to a fastener  204  extending from a sidewall  206  of a truck box. In this instance, the cable eyelet  200  comprises a plate that defines an aperture  210  therein that is substantially similar to the plate and aperture of cable eyelet  100 . The plate of cable eyelet  200  is positioned so that a head of fastener  204  will pass through aperture  210 . Sleeve  108  is modified to include a limiting member  212  which extends outwardly therefrom in a direction opposite to the cable. The limiting member  212  extends across a region of aperture  210  in the plate of cable eyelet  200 . As illustrated in  FIG. 2B , the terminal end  212   a  of limiting member  212  is located so that it is in the wider region of aperture  210 . In order to engage fastener  204 , limiting member  212  has to be flexed away from the cable eyelet&#39;s plate. 
         [0035]    Once through aperture  210 , fastener  204  is rotated to secure the plate of cable eyelet  200  against sidewall  206 . Tension in cable  202  is determined by the position at which the fastener head or an annular flange used therewith contacts the plate of cable eyelet  200 . Tension in cable  202  is additionally determined by the position of an end  212   a  of limiting member  212  relative to the fastener head. As illustrated in  FIG. 2B  a gap  214  is defined between the head of fastener  204  and end  212   a . When cable  202  is pulled in the direction of arrow “A” as the tailgate opens, the degree to which the eyelet  200  might move is dictated by the size of gap  214 . Consequently, the possibility for slackness in the cable  202  is somewhat controlled by limiting member  212  but the cable assembly tends to still result in one or both cables  202  appearing slack to the eye. 
         [0036]    Referring now to  FIG. 1  and  FIGS. 3-10  the cable assembly  14  in accordance with an aspect of the present invention is discussed in greater detailed. As indicated previously herein, a first end  18   a  of cable  18  is secured to sleeve  22 .  FIG. 5  shows the cable eyelet  20  of cable assembly  14 . Cable eyelet  14  includes a plate  28  which may define a keyhole-shaped aperture  30  therein. (Differently shaped plates or apertures may be utilized instead of the plate  28  and aperture  30  illustrated herein.) Aperture  30  is sized to allow head  24   a  of fastener  24  to pass therethrough. Aperture  30  is also sized to surround a portion of the shaft  24   b  of fastener  24 . The orientation of the engaged portion of shaft  24   b  within aperture  30  generally secures cable assembly  14  to fastener  24  as any pulling or movement of cable  18  results in the plate  28  of the first connector (cable eyelet  14 ) abutting the portion of the shaft and thereby preventing cable  18  from moving away from fastener  24 . 
         [0037]    Since aperture  30  is a keyhole-shaped aperture, the aperture in includes a wider region  30   a  and a narrower region  30   b . Plate  28  includes a shaft  32  which extends outwardly in a first direction from that part of plate  28  which defines wider region  30   a  of aperture  30 . Shaft  32  has a first surface  32   a , a second surface  32   b , a first side  32   c , and a second side  32   d . An extension  58  ( FIG. 3 ) on sleeve  22  defines a bore  58   a  ( FIG. 9 ) therein which is complementary is shape and size to a portion of shaft  32 . Spring clip  26  is positioned to surround at least a portion of shaft  32  and is also captured with shaft  32  within bore  58   a . Spring clip  26  and shaft  32  may be retained within bore  58   a  by friction or may be gripped, crimped, clamped or secured by fasteners to sleeve  22 . Any suitable way of securing sleeve  22  to plate  28  may be utilized. 
         [0038]    Cable assembly  14  also includes a spring clip  26  in accordance with an aspect of the present invention. Spring clip  26  is engaged with shaft  32  on eyelet  20  proximate the extension  58  of sleeve  22 . Spring clip  26  is engaged with cable eyelet  20  in such a way that at least a portion thereof extends across aperture  30 . Like the PRIOR ART ( FIG. 2B ), spring clip  26  includes a first part which extends across wider region  30   a  of aperture  30 . However, unlike the PRIOR ART, spring clip  26  includes a second part which extends across narrower region  30   b  and particularly across an end portion of narrower region  30   b  proximate the end of plate  28  which is remote from cable  18 . 
         [0039]    Spring clip  26  includes a base  34 , a plate  44  and a biasing member. Biasing member may take the form of a hook  36 . The biasing member, i.e., hook  36 , is biased such that when hook  36  abuts head  24   a  of fastener  24 , cable  18  is biased towards fastener  24 . This configuration increases tension along the length of cable  18  and acts to hold cable  18  in a more taut orientation along the length of cable  18 . Inasmuch as first end  18   a  of cable  18  is biased in the direction of fastener  24 , any minor change in the placement of a second end  18   b  of cable  18  generally does not introduce any or much slack into the length of cable  18 . 
         [0040]    Hook  36  may be of any desired shape such as being generally J-shaped. Base  34  engages shaft  32  adjacent extension  58 . Plate  44  extends outwardly from base  34  and hook  36  extends outwardly from plate  44 . Hook  36  runs substantially the entire length of keyhole-shaped aperture  30 , extends across narrower region  30   b  aperture  30  proximate outermost end of plate  20  and then curves back toward wider region  30   a . Hook  36  terminates a short distance from plate  44  as will be described later herein. 
         [0041]    It will be understood that spring clip  26  may be fabricated from a single planar piece of sheet metal that is stamped and bent into the shape illustrated in the attached figures. The portions of spring clip  26  identified as “base  34 ”, “plate  44 , and “hook  36 ” are identified in this manner simply for ease of description in this document and should not be considered as limiting the structure of this cable tensioning assembly. It will further be understood that spring clip  26  may be fabricated out of a number of separate pieces that are subsequently welded or otherwise joined together. 
         [0042]    Base  34  comprises a generally rectangular region having a first surface  34   a , a second surface  34   b , a first edge  34   c , a second edge  34   d  and an end  34   e . Proximate end  34   e , a first flange  34   f  extends outwardly from first edge  34   c  and is bent relative thereto. First flange  34   f  may be oriented at about 90 degrees relative to first surface  34   a . A second flange  34   g  extends outwardly from second edge  34   d  and is bent relative thereto. First and second flanges  34   f ,  34   g  are opposed and extend downwardly from second surface  34   b  and are provided to lock spring clip  26  to shaft  32  of cable eyelet  20 . First and second flanges  34   f ,  34   g  may frictionally engage shaft  32  or may be crimped or otherwise secured thereto. Second flange  34   g  is longer than first flange  34   f  (as shown in  FIG. 6 ) and includes a leg  34   h  which is bent through about 90 degrees relative thereto. Leg  34   h  extends toward first flange  34   f . A space  38  is defined between second surface  34   b  and an interior surface of leg  34   h  and between first and second flanges  34   f ,  34   g . A gap  43  is also defined between an edge of leg  34   h  and first flange  34   f . Gap  43  and space  38  are provided to enable spring clip  26  to be engaged with cable eyelet  20 . 
         [0043]    Base  34  further defines a pair of notches  42  in first and second edges  34   c ,  34   d  adjacent one end of each of first and second flanges  34   f ,  34   g . As shown in  FIG. 8 , base  34  includes a bending region  42   a  which extends laterally between notches  42 . Bending region  42   a  is disposed generally at right angles relative to longitudinal axis “Y” of spring clip  26 . The bending region  42   a  permits a first part of base  34  to be oriented at an angle “B” ( FIG. 8 ) relative to a second part of the base  34 . Angle “B” may be from about one degree up to about 5 degrees, and preferably may be about three degrees. 
         [0044]    Plate  44  extends outwardly from a portion of base  34  remote from flanges  34   f ,  34   g . Plate  44  has a first surface  44   a , a second surface  44   b , a first edge  44   c , and a second edge  44   d .  FIG. 7  shows that first edge  44   c  is aligned with first edge  34   c  of base  34 . Second edge  44   d  is generally parallel to and spaced a distance laterally outwardly from second edge  34   d  of base  34 . As best seen in  FIG. 6  or  8 , plate  44  and base  34  are not aligned along a common plane. Instead, plate  44  is oriented at an angle “C” relative to base  34 . As shown in  FIG. 6 , angle “C” may be from about one degree up to about 5 degrees, and preferably may be about three degrees. 
         [0045]    Plate  44  includes a corner region  46  having a first surface  46   a , a second surface  46   b , a first edge  46   c  and a first end  46   d . First edge  46   c  of corner region  46  is aligned with first edge  44   c  and first edge  34   c  ( FIG. 7 ). First end  46   d  of corner region is located generally at 90°±10° relative to longitudinal axis “Y”. Corner region  46  may also be oriented at an angle “D” relative to the rest of plate  44 . This is illustrated in  FIG. 6 .  FIG. 6  shows that if base  34  is oriented generally horizontally, then plate  44  angles downwardly from one end of base  34  and corner region  46  angles downwardly from plate  44 . Angle “D” may be from about one degrees up to about 5 degrees. Preferably, angle “D” is around 3 degrees. 
         [0046]    Hook  36  extends outwardly from plate  44  and particularly from along second side  44   d  thereof. Second side  44   d  forms a bottom end of a first end  36   a  of hook  36 . Hook  36  may be generally J-shaped with the straight leg of that J-shaped being generally aligned with second side  44   d  of plate  44 . The curved region of hook  36  is longitudinally spaced from plate  44  but is generally aligned with plate. H Hook  36  has a terminal end  36   b  which is separated from corner region  46  by a gap  48 . Terminal end  36   b  is located a distance laterally outwardly beyond aligned first edges  46   c ,  44   c  and  34   c . Terminal end  36   b  is along longitudinally spaced a distance away from first end  46   d . Hook  36  further includes a protrusion  36   c  which extends outwardly from an outer surface of hook  36 . The protrusion  36   c  acts as a strengthening rib on hook  36 . A slit  36   d  is defined in hook proximate terminal end  36   b . Slit  36   d  originates in lower edge  36   h  and extends vertically upwardly for a distance. Part of terminal end  36   b  is bent inwardly and upwardly to form a decent  36   e  which may slightly latch onto a bottom edge of the head of fastener  24  (as will be later described. Hook  36  also includes an upper edge  36   g , a lower edge  36   h , and an inner surface  36   i . As best seen in  FIG. 7 , a space  37  is defined between inner surface  36   i  of hook  36  and corner region  46   d  of plate  44 . Inner surface  36   i  of hook  36  will abut head  24   a  of fastener  24  when shaft  24   b  of fastener  24  is received in narrower region  30   b  of aperture  30 . 
         [0047]    The cable tensioning assembly in accordance with an aspect of the present invention is used in the following manner. Spring clip  26  is engaged with cable eyelet  20  by inserting base  34  over shaft  32 . This may be accomplished by positioning spring clip  26  such that part of shaft  32  enters the gap  43  between the edge of leg  34   h  and first flange  34   f . The part of the shaft  32  slides into space  38  and then shaft  32  with base  34  of spring clip  26  engaged therewith is inserted into bore  58   a  of sleeve  22  and is retained therein by any suitable means. 
         [0048]    As discussed earlier, fastener  24  extends outwardly from an inner surface of sidewall  16  of truck box  10 . Fastener  24  (as shown in  FIG. 9 ) may include a head  24   a , with a bottom edge  24   c , a shaft  24   b  which extends outwardly beyond bottom edge  24   c , and a threaded end  24   c  which is engage able in a threaded hole in sidewall  16 . Fastener may further include an annular flange  60  which is of a larger diameter than shaft  24   b  and the threaded hole in sidewall  16 . Flange  60  abuts sidewall and circumscribes the threaded hole. Alternatively, instead of flange  60 , a loose washer could be utilized. Cable eyelet  20  is positioned so that fastener head  24   a  passes through wider region  30   a  of the keyhole-shaped aperture  30 . Base  34  and part of plate  44  may be deflected outwardly away from the plate  28  of cable eyelet  20  as head  24   a  enters aperture  30 . Additionally, the positioning of cable eyelet  20  must be such as to not enable hook  36  to stop head  24   a  from entering wider region  30   a . As discussed with reference to the PRIOR ART cable eyelets  100 ,  200 , the plate of cable eyelet  20  may be oriented at an angle relative to sleeve  22  so that the plate  28  may more readily be positioned to capture fastener  24  in wider region  34   a.    
         [0049]    Once head  24   a  of fastener  24  enters wider region  30   a  of aperture  30 , cable eyelet  20  is moved to slide shaft  24   b  of fastener  24  into narrower region  30   b  of aperture  30 . This motion brings inner surface  36   c  of hook  36  into contact with the exterior surface of head  24   a  of fastener  24 . Detent  36   f  on hook may somewhat engage the bottom edge  24   c  of head  24   a . Corner region  46  of plate  44  may extend partially or fully into wider region  30   a  of aperture as is illustrated in  FIG. 8  and come into contact with the exterior surface of fastener shaft  24   b.    
         [0050]    As tailgate  12  is moved from the closed position to the open position, cable  18  is pulled in the direction indicated by arrow “E” in  FIG. 10 . This motion causes the sleeve  22  and therefore extension  58  and shaft  32  of cable eyelet  20  to move in the direction of arrow “E”. Since base  34  of spring clip  26  is engaged with shaft  32 , as shaft  32  moves in the direction of arrow “E”, a pulling force is exerted on the rest of spring clip  26 . This motion causes rotational motion in parts of hook  36  in the direction of arrow “F” thus drawing hook  36  into closer contact with head  24   a  of fastener  24 . Hook  36  and fastener  24  are thus more closely associated with each other. Every applied force causes an equal and opposite reaction. Thus, in response to the pulling on cable  18  in the direction of arrow “E” ( FIG. 10 ) and equal and opposite pulling force is exerted by spring clip  26  on sleeve  22  and thereby on cable  18 . This opposite pulling force is indicated by arrow “G” in  FIG. 3 . Thus, cable  18  is pulled taut. The size of the force does not have to be particularly large to pull cable  18  taut. About 7 lbs of tension may be generated in cable  18 . The displacement between when the cable eyelet  20  is in a relaxed condition and when the cable is fully under tension utilizing spring clip  26  is about 6 mm. The use of cable tensioning assembly, i.e., spring clip  26 , presents an aesthetically pleasing orientation of cable  18  and portrays that cable  18  is perfectly sized to fit between the fastener  24  and tailgate  12 . 
         [0051]    In the foregoing description, certain terms have been used for brevity, clearness, and understanding. No unnecessary limitations are to be implied therefrom beyond the requirement of the prior art because such terms are used for descriptive purposes and are intended to be broadly construed. 
         [0052]    Moreover, the description and illustration set out herein are an example and the invention is not limited to the exact details shown or described.