Abstract:
A guitar has a wrench tremolo bar thereon, replacing the standard tremolo bar, with the wrench tremolo bar having a desired wrench on at least one end of the wrench tremolo bar, to cooperate with the string fasteners on the guitar, which greatly facilitates tuning, changing or replacing of a guitar string.

Description:
This invention relates to a tremolo bar for a guitar, and more particularly, to a wrench tremolo bar for a guitar, which includes a wrench or a tool on each end of the tremolo bar in order to facilitate tuning, changing or replacing of a guitar string. 
   BACKGROUND OF THE INVENTION 
   A guitar is a very popular musical instrument. Both professionals and amateurs enjoy playing a guitar. Use of a guitar creates wear and tear on the guitar strings. Such wear and tear eventually leads to breakage of the string. 
   Since replacing a broken string requires a tool, it is very handy to have the tool readily available. Then, a string replacement can be done efficiently. However, most typically, tools are not readily available. For example, the tool may be in the guitar case or the dressing room. The tool may not even be around. 
   A delay in changing a broken guitar string is very expensive and time-consuming for a professional musician or guitar player. Any delay clearly interferes with rehearsal time. That delay is compounded when the string break occurs during a performance. An efficient replacement of a broken string on a guitar is very desirable. 
   Furthermore, recording studio time is very expensive. Any downtime must still be covered. So a broken guitar string does not stop the clock on recording studio time. Thus, the more quickly the string can be replaced, the better off everyone involved will be. 
   With the consideration of  FIG. 1  and  FIG. 2 , the status of the guitar  112  with a standard tremolo bar  110  in position thereon becomes clear. Standard tremolo bar  110  has male mounting threads  108  ( FIG. 5 ) at one end thereof. Male mounting threads  108  permit attachment to the guitar  112  at female guitar threads  102  ( FIG. 5 ), because of the structure of guitar  112 . In this manner, the standard tremolo bar  110  carries out its normal function of making a desired change in the sound of the guitar  112  as desired. 
   SUMMARY OF THE INVENTION 
   Among the many objectives of this invention is the provision of a tremolo bar for a guitar, which permits changing a broken guitar string in efficient fashion. 
   A further objective of this invention is the provision of a tremolo bar for a guitar, which reduces downtime at a recording studio. 
   Yet a further objective of this invention is the provision of a tremolo bar for a guitar, which provides more efficient rehearsal time. 
   A still further objective of this invention is the provision of a tremolo bar for a guitar, which is easily installed. 
   These and other objectives of the invention (which other objectives become clear by consideration of the specification, claims and drawings as a whole) are met by providing a tremolo bar for a guitar, having a desired wrench on at least one end thereof. 

   
     BRIEF DESCRIPTION OF THE DRAWINGS 
       FIG. 1  depicts a perspective view of a prior art standard tremolo bar  110 , in position on a guitar  112 . 
       FIG. 2  depicts a side view of a prior art standard tremolo bar  110  based on  FIG. 1 . 
       FIG. 3  depicts a perspective view of the wrench tremolo bar  100  of this invention. 
       FIG. 4  depicts a perspective view of the wrench tremolo bar  100  of this invention, which is a reverse view of  FIG. 3 . 
       FIG. 5  depicts a perspective view of the wrench tremolo bar  100  of this invention, working to replace a string  114  on guitar  112  from the lockdown bridge  116 . 
       FIG. 6  depicts a perspective view of the wrench tremolo bar  100  of this invention, working to replace a string  114  on guitar  112  from the guitar neck  118 . 
       FIG. 7  depicts a perspective view of the wrench tremolo bar  100  of this invention, with a double female lock nut  144 . 
       FIG. 8  depicts a perspective view of the wrench tremolo bar  100  of this invention, as it is mounted on guitar  112 . 
       FIG. 9  depicts a perspective view of the wrench tremolo bar  100  of this invention, with a hexagonal linear stock material  160 . 
       FIG. 10  depicts a block diagram of the wrench tremolo bar  100  of this invention, in position on guitar  112 . 
   

   Throughout the figures of the drawings, where the same part appears in more than one figure of the drawings, the same number is applied thereto. 
   DESCRIPTION OF THE PREFERRED EMBODIMENTS 
   In a guitar using a tremolo bar where the strings are held in position by screws or bolts or other fasteners, there are usually no more than two sizes thereof holding the strings. Therefore, when strings need to be replaced, only two different size tools are needed to make the appropriate adjustments in the screws or bolts. 
   The tremolo bar, also sometimes referred to as the whammy bar, for this invention has the desired tool on either end thereof. For example, when a guitar has Allen screws holding the strings, the Allen wrench on either the end of the tremolo bar can be accessed by removing it from the guitar and using the wrench on the end thereof to replace the string. This tremolo bar also facilitates fine tuning of the string at the neck of the guitar. 
   While it is unusual for a screw to be removed from the guitar during the process of changing a string, it is possible. To that end, it is possible to magnetize the wrench tremolo bar, to thereby minimize the chance of losing the screw. If the that screw is accidentally or purposefully removed, the this magnetic quality will hold the screw on the wrench tremolo bar until it may be reinserted into the guitar. 
   Referring now to  FIG. 3  and  FIG. 4 , the wrench tremolo bar  100  has a neck Allen wrench  120  at mounting threads  108  and a bridge Allen wrench  130  at the opposing end of wrench tremolo bar  100 . Mounting threads  108  still retain sufficient length to permit wrench tremolo bar  100 , with neck Allen wrench  120  at the end thereof to permit attachment to guitar  112  at female guitar threads  102  ( FIG. 5 ). 
   More particularly, wrench tremolo bar  100  has a short straight shaft end  122  adjacent to mounting threads  108 . Wrench tremolo bar  100  has the short straight shaft end  122  extending into a substantially right angle  124 . From substantially right angle  124 , wrench tremolo bar wrench  100  extends into a tool bar  126 . Tool bar  126  leads into slight bend  128 . Slight bend  128  leads to bridge Allen wrench  130  through long straight shaft end  132 . 
   With  FIG. 5  added to the consideration, bridge Allen wrench  130  is used on bridge Allen screw  136  in order to release or tighten Allen screw  136  and related guitar string  114 . Long straight shaft end  132  permits ease of access to Allen screw  136 . In this manner, guitar string  114  may be tightened, loosened or replaced. After such use, the wrench tremolo bar  100  at male threads  108  is received into female guitar threads  102 . 
   Turning now to  FIG. 6 , neck Allen wrench  120  is used on neck Allen screw  140  in order to release or tighten neck Allen screw  140  and related guitar string  114 . Tool bar  126  of wrench tremolo bar  100  permits ease of access to neck Allen screw  136  of nut lock  119  at the end of guitar neck  118 . In this manner, guitar string  114  may be tightened loosened or replaced. 
   In  FIG. 7  and  FIG. 8 , another option for attaching wrench tremolo bar  100  to the guitar  112  is an elongated female locknut  144 . Locknut  144  is of sufficient length to contact and mesh with both expanded bar threads  150 , which are above mounting threads  108 , and male mounting threads  138  on guitar  112 . 
   Within male mounting threads  138  are the interior female mounting threads  152 , which are adapted to receive bar mounting threads  108 . After bar mounting threads  108 , are placed in threaded relation with female mounting threads  152  and wrench tremolo bar  100  is properly positioned as desired by a guitarist, female locknut  144  is placed in threaded relation with expanded bar threads  150  and male mounting threads  138  on guitar  112 , thereby securing wrench tremolo bar  100  in a desired position. 
   With  FIG. 9 , wrench tremolo bar  100  is depicted as formed from a hexagonal linear stock material  160 . This is useful for decorative purposes, which may be accented by a twist section  162 . Twist section  162  is near bridge Allen wrench  130 . 
   In  FIG. 10 , other designs of wrench tremolo bar  100 , as mounted on guitar  112 , are possible. Different cross sections of the wrench tremolo bar may be shown as desired. Different tools on each end of wrench tremolo bar  100  are patterned as desired for a particular guitar  112 , depending on the fasteners, which may be used in place of bridge Allen screw  136 , for example. Thus, the wrench tremolo bar  100  is very useful. 
   Tools include bridge tool  170  at one end of wrench tremolo bar  100  and neck tool  172  at the other end of wrench tremolo bar  100 . Neck tool  172  and bridge tool  170  are adjusted, depending on the fasteners for guitar  112 . Neck tool  172  may even include neck Allen wrench  120 . 
   Neck tool  172  and bridge tool  170  may be the same or different, depending on the fasteners for guitar  112 . Bridge fasteners  174  and neck fasteners  176  may be the same or different. Bridge fasteners  174  are on bridge lock  116 , and neck fasteners. Neck fastener  176  are on neck lock  119 . Strings  114  run from bridge lock  116  to neck lock  119 . Neck fasteners  176  hold strings  114  on neck lock  119 , while bridge fasteners  174  hold strings  114  on bridge lock  116 . 
   With the wrench tremolo bar  100  of this invention with which has tool  170  on the end thereof, it is quite possible to change a guitar string  114  during the performance, without stopping the performance. It thus follows it is possible to change a guitar string  114  during a rehearsal without stopping the rehearsal. Such a quick change provides a tremendous advantage to the guitarist and the other musicians present. It also cuts down on waste under tremendously expensive studio time. 
   With  FIG. 10 , the wrench tremolo bar  100  on guitar  112  has a wide variety of shapes. The cross section of wrench tremolo bar  100  has any suitable shape, which permits playing of guitar  112  with wrench tremolo bar  100  in place thereon. The shape can be polygonal, elliptical, circular, or another operable shape. 
   This application—taken as a whole with the abstract, specification, claims, and drawings being combined—provides sufficient information for a person having ordinary skill in the art to practice the invention as disclosed and claimed herein. Any measures necessary to practice this invention are well within the skill of a person having ordinary skill in this art after that person has made a careful study of this disclosure. 
   Because of this disclosure and solely because of this disclosure, modification of this method and device can become clear to a person having ordinary skill in this particular art. Such modifications are clearly covered by this disclosure.