Abstract:
An external handle for tablet computers. The handle is an accessory that attaches to the back of tablet computers and allows the tablet computer to be rotatable relative to the handle. The handle further contains a locking system that maintains the tablet at a horizontal orientation or a vertical orientation. The handle further contains a cleaner that detaches from the handle and which allows a user to clean fingerprints from a screen of the tablet computer.

Description:
TECHNICAL FIELD 
       [0001]    The handle pertains to gripping tablet computers at a horizontal orientation or a vertical orientation. The handle is an accessory that attaches and detaches from the back of a tablet computer either directly or indirectly. 
       BACKGROUND OF THE INVENTION 
       [0002]    Since the introduction of tablet computers, people have come out with accessories that facilitate handling the tablet computers. Known accessories have included a glove that is attached with hooks and loops to the back of the tablet computers. The glove is rotatable and can be detached from the tablet computer for ease of carrying or storage. Others have introduced a spider that has fours radiating legs attaching to corners of a tablet computer. The spider integrates a cavity that allows one to pass and insert fingers for grabbing the tablet computer while providing support to the tablet computer. The cavity is however set at the center of the tablet computer and is not rotatable nor includes a cleaning feature. 
       SUMMARY OF THE INVENTION 
       [0003]    The present invention is a rotatable handle that attaches to a tablet computer and eases handling of the tablet computer in a horizontal orientation or in a vertical orientation. The handle is rotatable relative to the tablet computer so as to position the tablet computer in the horizontal orientation or the vertical orientation. The handle contains a locking system that maintains the horizontal orientation or the vertical orientation thus fixing the handle relative to the tablet computer. The handle comprises a housing that functions as a gripper and houses a lint-free cleaner that separates from the handle. The handle provides ease of handling the tablet computer for prolong periods especially as technology advances to making thinner tablet computers. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0004]      FIG. 1  is an isometric view of the handle. 
           [0005]      FIG. 2  is an isometric view of a second portion of the handle. 
           [0006]      FIG. 3  is a side view of the second portion of the handle. 
           [0007]      FIG. 4  is a front view of the second portion of the handle. 
           [0008]      FIG. 5  is a side view of the handle. 
           [0009]      FIG. 6  is an isometric view of the first portion of the handle. 
           [0010]      FIG. 7  shows the handle installed on a tablet computer and the rotation of the handle into a second position. 
           [0011]      FIG. 8  is a side view of the first portion of the handle. 
           [0012]      FIG. 9  is a front view of the first portion of the handle. 
           [0013]      FIG. 10  is a cross-sectional view of the first portion of the handle shown in  FIG. 8 . 
           [0014]      FIG. 11  is a cross-sectional view of the first portion of the handle shown in  FIG. 9 . 
           [0015]      FIG. 12  is an isometric view of the fixable base, which attaches to the tablet computer. 
           [0016]      FIG. 13  is a top view of the fixable base shown in  FIG. 12 . 
           [0017]      FIG. 14  is a cross-sectional view of the fixable base. 
           [0018]      FIG. 15  shows a jig tool to facilitate positioning the hooks of a hook and loop system. 
           [0019]      FIG. 16  shows the use of the jig tool to position the hooks on a tablet computer. 
           [0020]      FIG. 17  shows a front view of the jig tool. 
       
    
    
     DETAILED DESCRIPTION 
       [0021]      FIG. 1  shows an external handle  100  comprising a first portion  6 , a second portion  7 , and a fixable base  8 . The second portion  7  and the fixable base  8  are pivotally connected with a threaded fastener  5 . The first portion  6  and the second portion  7  connect with each other and mate with each other so as to complete a cylinder, which comprises a handle portion for grasping. The second portion  7  includes a second cover  7   b,  a wing  7   a,  and an offset portion  7   c.  The second cover  7   b  joins to the wing  7   a  via blend  7   m.  The second cover  7   b  contains pair of tabs  7   f,  a cavity  7   d,  and a lip  7   e.  Each of the tabs  7   f  is formed from a pair of slots  7   g  that penetrate vertical walls  7   y  of the second cover  7   b . The tabs  7   f  terminate with a tapered surface  7   k,  see  FIG. 4 , which facilitates insertion and locking of the tabs  7   f  with the first portion  7 . The wing  7   a  contains the offset portion  7   c,  which serves to pivotally hold the fixing base  8 . 
         [0022]      FIG. 2  shows a screw  5  passes through a hole  7   z  in the offset portion  7   c  and fastens to the fixable base  8 . The offset potion  7   c  includes an arcuate strip  7   i  that contains a spherical locking projection  7   j.  See  FIG. 3 . The arcuate strip  7   i  is formed from an arcuate slot  7   x  on the offset portion  7   c.  The spherical locking projection  7   j  projects perpendicular from under the offset portion  7   c  and flexes with the arcuate strip  7   i.  The locking projection  7   j  locks in any of the spherical cavities  8   b  formed on the fixable base  8  so as to position the handle  100  in a vertical orientation or a horizontal orientation relative to a screen of a tablet computer  200  as shown in  FIG. 7 . The handle  100  attaches to the back of the screen via hook and loops,  9 ,  10 , as shown in  FIG. 5 . Of course, other methods of attaching the handle  100  to the back of the screen are envisioned so as to keep the handle permanent to the screen or removable from the screen. 
         [0023]    FIGS.  6  and  8 - 11  show the first portion  6  of the handle  100 , which contains a cleaner  6   a.  The cleaner  6   a  comprises a micro-fiber fabric  6   i  that facilitates cleaning glass, and a cylindrical core  6   h.  The invention contemplates using other types of materials that clean glass or clean clear plastic. The first portion  6  comprises a first cover  6   b  that houses the cleaner  6   a  in a cavity  6   c . The cleaner  6   a  is bonded to the cavity  6   c  or fastened to the cavity using any connecting method. The first cover  6   b  further contains an external cylindrical surface  6   d  that facilitates gripping. The first cover  6   b  further contains a peripheral undercut  6   e  that mates with the lip  7   e  so as prevent the first cover  6   b  from sliding laterally or axially relative to the second cover  7   b  and to mate the first cover  6   b  with the second cover  7   b.  The first cover  6   b  further contains two vertical walls  6   f,  which contains locking cavities  6   g  that receive the locking projections  7   h.    
         [0024]      FIGS. 12-14  show the fixable base  8 . The fixable base  8  contains a fastening hole  8   a  and at least three circumferentially spherical cavities  8   a  which alternatively receive the spherical locking projection  7   j.  The cavities  8   a  are positioned at 90 degrees apart. The fixable base  8  contains the hook  8  of the hook and loop system, which allows the handle  100  to be removable from the tablet computer  200 . The invention contemplates using the loop  9  of the hook and loop system to be permanently fixed to the back of the table computer or in the case when a cover is used with the tablet computer, fixed to the cover. The fastening hole  8   a  can be either threaded to receive the threaded fastener  5  or non-threaded so that the threaded fastener  5  forms a thread during assembly thus locking the threaded fastener  5  without slippage. It is contemplated that other fasteners can be utilized such as rivets or fasteners that allow the fixable base  8  to pivot relative to the offset portion  7   c.    
         [0025]      FIG. 7  shows the location where a pivot axis of the handle  100  is positioned relative to the tablet computer  200 . The pivot axis is positioned perpendicular along an imaginary diagonal line  201  from an imaginary square  202  using the dimensions of the tablet computer  200 . To facilitate positioning the loop  9  of the hook and loop system along the imaginary diagonal line  201 , a jig  30  is utilized. As shown in  FIGS. 15-17 , the jig  30  comprises a planar backbone  30   a,  which terminates into a pair of stops  30   c  at one end and an annular guide  30   b  at the other end. The stops  30   c,  when used, abut against the edges of the tablet computer  200 . The annular guide  30   b  provides a location where the loop  10  of the hook and loop system abuts so that the loop  10  is bonded to the tablet computer as seen in  FIG. 16 . The jig  30  further contains a cutout  30   d  that separates the stops at 90 degrees from each other and also clears the jig  30  from hitting the corner of the tablet computer  200 . 
         [0026]    The invention uses a hook and loop system or alternatively can use a permanent fastening system to fix the handle  100  to the tablet computer. The first portion  6 , the second portion  7 , the fastener  5 , and the jig  30  can be made from any known material. The core  6   h  although being made from solid plastic can also be made with foam so as to cushion forces during cleaning, or be made hollow. The spherical projection  7   j  on the offset portion  7   c  and the spherical cavities  8   b  on the fixable base  8  can be reversed such that the spherical cavities  8   b  are on the offset portion  7   c  and the spherical projection  7   j  is on the fixable base  8 . Further, although three spherical cavities  8   b  are shown, the invention contemplates using at least two or many more. Furthermore, the invention contemplates integrating the fixed portion  8  into the tablet computer  200  such that there is no need to bond or separately fasten the fixed portion  8  to the tablet computer  200  but rather makes part of the tablet computer or in the case where a protective cover for the tablet computer is used, integrating the fixed portion  8  with the protective cover.