Abstract:
A table lamp with an emergency back up light mounted in the base is disclosed. The base will be clear or opaque such that the light from the back up light can illuminate the area. There is an electronic charger and relay switch located in the base of the lamp, a battery attached to the relay, and a pair of low wattage bulbs attached to the relay. In the event of a power outage the relay will sense the outage and switch on the back up lamps to provide emergency back up lighting.

Description:
CROSS REFERENCE TO RELATED APPLICATIONS 
       [0001]    This application claims priority to U.S. provisional application Ser. No. 61/274,610 filed on Aug. 19, 2009, and incorporated herein by reference. 
     
    
     STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT 
       [0002]    Not Applicable 
       THE NAMES OF THE PARTIES TO A JOINT RESEARCH AGREEMENT 
       [0003]    Not Applicable 
       INCORPORATION-BY-REFERENCE OF MATERIAL SUBMITTED ON A COMPACT DISC 
       [0004]    Not Applicable 
       BACKGROUND OF THE INVENTION 
       [0005]    1. Field of the Invention 
         [0006]    The present invention relates to an emergency back up light contained in a conventional table lamp. 
         [0007]    2. Description of the Related Art 
         [0008]    There are numerous commercial and industrial emergency lighting systems which cannot easily be installed in a home, due to the fact they are designed for non-residential applications. They must be affixed to a wall or ceiling, hard wired and cannot be moved to different areas of the home. These industrial lightly systems are also not designed for the aesthetic of household use. There is a need, therefore, for an emergency back up light specifically designed for household use. 
       SUMMARY OF THE INVENTION 
       [0009]    This invention provides table lamp with battery backup lighting as to provide a temporary functional light source in the event of a power outage. When power outages occur at night, there is the danger of navigating through a home to try and locate a flashlight or candle. Especially with children and the elderly the possibility of tripping over or running into many different items in the home is a problem. More so a problem is the risk of falling down stairs. This invention is meant to be an emergency source of light in the home. This invention will, in the event of a power outage, give people enough light to safely move around in their home for up to approximately 12 hours and better prepare for an extended outage by gathering other items such as candles, flashlights, firewood and other safety items. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0010]      FIG. 1  is a perspective view of one embodiment of the invention. 
           [0011]      FIG. 2  is a perspective view of a second embodiment of the invention 
           [0012]      FIG. 3  is a schematic of the invention. 
       
    
    
     DETAILED DESCRIPTION OF THE INVENTION 
       [0013]    Detailed embodiments of the present invention are disclosed herein. It is to be understood that the disclosed embodiments are merely exemplary of the invention, and that there may be a variety of other alternate embodiments. The figures are not necessarily to scale, and some features may be exaggerated or minimized to show details of particular components. Therefore, specified structural and functional details disclosed herein are not to be interpreted as limiting, but merely as a basis for teaching one skilled in the art to employ the varying embodiments of the present invention. 
         [0014]    The invention can best be seen in  FIG. 1  &amp;  FIG. 2 . The two embodiments are essentially the same, the primary difference is the configuration of the lamp body. The lamp is built by assembling a lamp body  108  onto a base  111 . The body  108  is hollow and can be made of opaque glass, colored glass, opaque plastic, perforated metal or other perforated material as to allow for a light source to illuminate through and beyond the lamp body. The lamp body  108  begins at the base  111  with a diameter sufficient to allow for a minimum 6″ clearance inside of the base of the lamp body  108 . Differing body designs can allow for varying lamp body  108  heights. The base is approximately 6″ across minimum and can be square, round, rectangular, or octagonal or another shape which will allow for approximately 6″ minimum across a center point on the base inside of the lamp body  108  as to allow room for the battery  110  and charger/relay board  109 . 
         [0015]    Inside the body  108  and mounted on the base  111  there is a battery  110  and a charger/relay  109 . There is an access opening in the lamp body  108  or base  111  for access to the battery and charger/relay board. There is a center rod  105  mounted on the base  111  which runs through the body  108 . At the top of the center rod  105  there is mounted a conventional switched lamp socket  103  with a standard rotary switch  104  which can be either a single switched socket or a three way switched socket. Also attached to the top of the center rod  105  is a standard harp assembly on which to mount a lamp shade  101 . A lamp shade of many styles and colors can be used. The socket  103  can hold a standard light bulb  102 , which can be a conventional AC lamp bulb, CFL or LED bulb. The battery  110  is a 6 volt sealed rechargeable battery, and is in electronic connection with a charging board with a switching relay  109 . There are at least two 6 volt halogen or led lamps  106  with low voltage leads  107  electronically connected to the charger/relay board  109 . A conventional two wire PJT lamp cord  113  of sufficient length to reach from the lamp socket  103  down through the lamp body  108  and base  111  and allow at least four feet of length to extend to a wall outlet from the base  111  is also attached. 
         [0016]    A center rod assembly  105  with a bottom fastener  112  can be used with an opening at the base  111  to extend up from the base  111  through the lamp body  108  to the lamp socket  103  as to assemble all the aforementioned components into a single unit or a rodless body with the lamp socket  103  affixed to the top of the lamp body  108 . 
         [0017]    The unit is assembled by starting with the base  111  and affixing the battery  110  to the base  111  using a conventional mounting method as to prevent the battery  110  from moving as the lamp is moved. There is a DC switch installed at the base  111  so the battery  110  can be turned off. Mount the charging/relay board  109  opposite the battery  110  and attached to the base  111 . Bring the lamp cord  113  up through a nipple in the base  111  to the point of the charging/relay board  109  with approximately four feet extending outside the base  111  as to allow for plugging the lamp into a wall outlet when the lamp is put into service. The lamp cord  113  will terminate at the point of the charging/relay board  109  with the 120 volt leads from the relay board  109  and a sufficient amount of lamp cord to extend up through the center rod assembly  105  where it will terminate at the lamp socket  103 . 
         [0018]    A junction will be made including the wires to the lamp cord  113 , the wire to the socket  103  and the 120 volt leads to the charger/relay board  109 . The two low voltage lamps  106  will be attached to the center rod  105  approximately half-way up the height of the rod  105  inside the lamp body  108 . The wires from these lamps will extend down to and terminate on the charger/relay board  109 . The center rod  105  will be attached to the base  111  by an open bracket as to allow for the lamp cord  113  coming from the socket  103  to exit the rod  105  at the base  111  to the junction area near the charger/relay board  109 . After this wiring is installed in the rod  105  the lamp body  108  can be installed on the base  111  with the end of the center rod  105  going up through the top of the lamp body  108  through a hole of sufficient size for the rod  105  to fit closely in the hole. The rod  105  will extend above the lamp body  108  approximately ½ inch which will allow for mounting the harp assembly and lamp socket  103 . The rod  105  is threaded at the top. Installing a locknut onto the rod assembly  105  down to the top of the lamp body  108  will make the base  111  and lamp body  108  one rigid assembly. The harp will now be installed over the threaded end of the rod  105 . The lamp cord  113  will be terminated on the lamp socket  103  and the socket  103  is now installed onto the end of the center rod  105  on top of the base of the harp assembly. After installing a lamp bulb  102  and lamp shade  101  the fixture can be used as a regular table lamp. 
         [0019]    The relay board  109  has several relays for the various functions. There is an AC relay to engage the DC relay upon loss of AC power. There is a DC switching relay to engage the low voltage lamps along with a DC low voltage relay to switch off the battery when it gets too low to prevent damage to the battery  110 . When standard AC power is restored the AC relay turns off the DC function and the charging function comes on to refresh the battery. It also turns off when the battery is fully charged to prevent damage from an overcharge. 
         [0020]    The present invention is well adapted to carry out the objectives and attain both the ends and the advantages mentioned, as well as other benefits inherent therein. While the present invention has been depicted, described, and is defined by reference to particular embodiments of the invention, such reference does not imply a limitation to the invention, and no such limitation is to be inferred. The depicted and described embodiments of the invention are exemplary only, and are not exhaustive of the scope of the invention. Consequently, the present invention is intended to be limited only be the spirit and scope of the claims, giving full cognizance to equivalents in all respects.