Abstract:
An improved accessory fuse harness is an inexpensive and easy means to power accessories such as entertainment, auxiliary, or communication equipment in vehicles such as passenger cars or boats from a standard fuse box and uses a connective plug that resembles the fuse utilized in the fuse box in appearance wired an accessory that is to be added to the vehicle.

Description:
FIELD OF INVENTION  
       [0001]     The present invention relates generally to an improved accessory fuse harness that allows easy connection of devices requiring power to existing systems to an existing fuse box, or with the addition of an addition fuse box.  
       BACKGROUND OF THE INVENTION  
       [0002]     Commonly used electrical devices such as computer accessories, cell phones, stereos, televisions, and music players such as MP3, CD etc., are now being used in automobiles and a wide variety of vehicles. The devices need electrical power to operate. Most vehicles have predetermined wiring systems that come from the factory, or have either none, or has limited outlets for the use with additional accessories that an end user would want to install. For example, automobiles have one power outlet, or use the cigarette lighter to power portable electronic equipment. Each of the factory installed accessories are wired to a power source via a fuse box that comes with the vehicle.  
         [0003]     Fuse boxes come with nearly all vehicles. Some fuse boxes have unused fuse locations that can be used to power other applications. However, this requires running wires the fuse box or to the main wiring system. A fuse box will typically have one lead from the fuse box to the power source and the other lead will go to the accessory that will typically have to be grounded.  
         [0004]     Rarely, some blank fuse locations will be already wired to the electrical system on one prong only leaving one prong to be wired to an accessory. This still requires wiring to be ran in the vehicle. Adding wiring to any existing vehicle is typically very expensive. As a general rule newer vehicles are more costly to repair than older vehicles and are of more complexity. If the vehicle has a computer system that controls the wiring, the level of difficulty in adding wiring systems tends to increase.  
         [0005]     The need therefore exists for an easy means to power accessories without expensive wiring installation.  
       SUMMARY OF THE INVENTION  
       [0006]     The instant invention is an improved accessory fuse harness that allows the user to provide a inexpensive and easy to use means to power accessories such as entertainment, auxiliary, or communication equipment in vehicles such as passenger cars or boats from a standard fuse box. This is done by means of a harness that has a connective plug that resembles the fuse utilized in the fuse box in appearance, but is pre-wired to provide connection points to an accessory that is to be added.  
         [0007]     The subject matter of the present invention is particularly pointed out and distinctly claimed in the concluding portion of the specification. However, both the organization and method of operation, together with further advantages and objects thereof, may best be understood by reference to the following description taken in connection with accompanying drawings wherein like reference characters refer to like elements. 
     
    
     BRIEF DESCRIPTION OF THE DRAWINGS  
       [0008]      FIG. 1   a  is a top view of a vehicle that utilize a first embodiment of the instant invention to power an accessory under the hood.  
         [0009]      FIG. 1   b  is a schematic diagram illustrating how the instant invention is used to connect an accessory to the existing fuse box that utilizes a fuse holder to protect the accessory from electrical surges.  
         [0010]      FIG. 1   c  is a schematic diagram illustrating how the instant invention is used to connect an accessory to the existing fuse box.  
         [0011]      FIG. 1   d  is an isometric view of a first embodiment of the instant invention illustrating the placement of the fuse holder.  
         [0012]      FIG. 2  is an isometric view of a prior art electric harness.  
         [0013]      FIG. 3  is an isometric view of a prior art in-line fuse holder.  
         [0014]      FIG. 4  is an isometric view of a prior art standard ATO fuse.  
         [0015]      FIG. 5  is an isometric view of a prior art automotive tubular glass fuse.  
         [0016]      FIG. 6  is an isometric view of a prior art automotive fuse holder.  
         [0017]      FIG. 7  is cross section of the plug in the standard ATO fuse embodiment along lines A-A′.  
         [0018]      FIG. 8  is an isometric view of tubular fuse embodiment.  
         [0019]      FIG. 9  is a schematic view of the instant invention used with a newly installed fuse box. 
     
    
     DESCRIPTION OF THE PREFERRED EMBODIMENTS  
       [0020]     Referring to  FIG. 1   a  the instant invention is an improved accessory fuse harness  1  that allows easy connection of electronic devices to an existing automobile electrical system. The instant invention connects a battery  101  to a fuse box  103  into which the instant invention  1  connects the fuse box to an accessory  105  that is connected to a ground  107  that is connected to the automobile chassis. The battery  101  is connected to the fuse box via a positive wire  109  that provides electrical energy.  
         [0021]     Now referring to  FIG. 1   b  the fuse harness  1  can contain a fuse holder  3  that can protect the accessory  105  from electrical surges. The slot end  18  is inserted into the empty slot  16  thereby causes a connection form the battery  101  to the accessory  105 . When using a fuse holder  3  it is inserted between the first end  25  and second end  27  of the electrical lead  24 , 26 .  
         [0022]     Now referring to  FIG. 1   c  the instant invention is illustrated in its most simple form. A fuse holder  3  is not required. When used without a fuse holder  3 , the electrical lead  26  has a first end  25  and a second end  27 . The first end  25  is connected to the active prong in the plug end  18 , and the second end  27  is connected to the connecting means  22  which is in turn connected to the accessory  105 .  
         [0023]     Now referring to  FIG. 1   d  the fuse harness has a slot end  18  and lead  24  and fuse holder  3  and lead  26  and a connecting means  22  to the accessory  105 . The use of connecting means  22  to make an electrical connection is well know in the art.  
         [0024]     Now referring to  FIG. 2  the use of electrical harnesses  2  are very well known the art.  
         [0025]     Now referring to  FIG. 3  the use of fuses in a new wiring configuration is also known in the art.  
         [0026]     Automobiles use two types of fuses. Now referring to  FIG. 4 , the most commonly used fuse  4  in a newer automobile is the standard ATO fuse. Now referring to  FIG. 5 , some older automobiles will use a glass tubular fuse  5 .  
         [0027]     Now referring to  FIG. 6 , all automobiles use a fuse box  6  that takes either the standard ATO fuse  4  or the glass-tubular fuse  5  that is used to protect against overload and over current conditions. The instant invention  1  requires either a blank slot  10  in an existing fuse box  6 , or the installation of new fuse box  6 . For purposes of this application it is not germane if an existing or an added fuse box is used. Each fuse box  6  requires a connection to a power supply via a conductive  12  wire, or the addition of a new connection  14  to a hot lead. An empty slot  16  is be used to receive the plug end of the instant invention.  
         [0028]     Referring again to  FIG. 1  the instant invention has a slot end  18  connected to an optional fuse receptacle  20  via a conductive wire  24 , which is connected to a attaching means  22  also via a conducting wire  26 . The attaching means  22  is a convenience to the use and is not required to constitute the instant invention.  
         [0029]     Now referring to  FIG. 7  the slot end  18  has a plug  30  that is constructed of insulating material  32  that contains a dummy prong  34  and an active prong  36 . The active prong is connected to the optional fuse receptacle via a conduction wire  24 . The optional fuse receptacle  40  is connected to the accessory via a conductive wire  26 . A connective means  22  will made use of the instant invention easier to connect to the accessory to be added  
       Glass Fuse Embodiment  
       [0030]     Now referring to  FIG. 8 , a fuse box that uses a tubular-glass fuse will require the an embodiment that will utilize a cylinder  44  that appears similar to a tubular glass fuse in size and shape, but the glass portion will be substituted with a non-conductive material  48 . The most efficient method of manufacture of the tubular-glass embodiment is to band the first end  52  of a rod made of non-conductive material  48  with a non-conductive sheath  56  that has the same diameter of the fuse  5  it will replace. The second end of the rod  60  would be sheathed with a conductive material  36  to which is connected a conductive wire  24 . The remainder of the embodiment is identical to the standard ATO embodiment.  
         [0000]     Wiring Instructions  
         [0031]     Now referring to  FIG. 9 a  vehicle that does not have a blank hot fuse slot an additional fuse holder  60  will need to be installed. The hot lead  112  would be soldered to the input terminal (or terminals) on the additional fuse holder  6  and be electrically connected to the positive terminal. A fuse harness  1  would be inserted into a hot slot  160  as used with other embodiments of the invention.  
         [0000]     Other Fuses  
         [0032]     Many types of fuses are in use in wide variety of equipment. In each of these instances the fuse to be replaced would have two ends. One end would a dummy end, and the other would be the hot end as in the first two embodiments  
       Other Embodiments Possible  
       [0033]     While several embodiments of the present invention have been shown and described, it will be apparent to those skilled in the art that many changes and modifications may be made without departing from the invention in its broader aspects.  
         [0034]     For example, the types and size of wiring used, the power capability and size of equipment, how to connect the ground wire, and other types of fuses to use.