Abstract:
A receptacle will contact points for a switch includes a single-molded base to receive a receptacle with a few conducting metal plates therein. Each conducting metal plate has a portion extending outwardly as a connecting point with a ping, and a contact point that forms part of a control circuit of the switch.

Description:
BACKGROUND OF THE INVENTION 
     1. Field of the Invention 
     This invention relates to a receptacle, and more particularly to a single-molded base to receive a receptacle with a few conducting metal plates formed into a loop mounting therein. 
     2. Description of the Related Prior Art 
     Conventional extension cords mostly have multiple receptacles, and each receptacle has a separate control switch, a light, or a protective device. The switch controls the conductivity of the plug hole, the light indicates the plug hole is turned on or off, while the protective device is to protect the receptacle against overload. Prior art receptacles are also molded with a single separated plug hole. 
     All of the above mentioned prior art devices have a switch control and have a positive and negative connection within the receptacle. However, this design has may restrictions, one of which is that the switches and plug holes require a bigger space. Further, the design is restrained by its mold which is not easy to change. 
     SUMMARY OF THE INVENTION 
     It is the primary object of the present invention to provide a receptacle with contact points for a switch. 
     It is another object of the present invention to provide a receptacle with contact points for a switch, which is compact in size. 
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS 
     FIG. 1 is an exploded view of the present invention; 
     FIG. 2 is a perspective view of a single mold of the present invention; 
     FIG. 3 is an exploded view composed with other devices of the present invention; 
     FIG. 4 is a perspective view of a single molded receptacle; 
     FIG. 5 is a perspective view of a series single molded receptacle; 
     FIG. 6 is another perspective view showing a second embodiment of a series single molded receptacle; 
     FIG. 7 is a perspective view of a single molded receptacle with a case; 
     FIG. 8 is an exploded view of a single receptacle of another embodiment including other devices; 
     FIG. 9 is a partial assembled perspective view of FIG. 8; and 
     FIG. 10 is a perspective view of the second embodiment. 
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
     The receptacle with contact points for a switch, as shown in FIG. 1, comprises a base  1  for a first conducting plate  2 , a second conducting plate  3  and a third conducting plate  4  to be mounted therein. 
     The base  1  has a trough  11  with two sections therein, the trough  11  has grooves  111  (or open space) at one side corresponding to a slot  31  of the second conducting plate  3  and a slot  41  of the third conducting plate  4 . A bridge  12  extends from the other side of the trough  11 . 
     The first conductive plate  2  is a longitudinally extended plate having a contact point  21  thereon, and is seated on the bridge  12 . 
     The second conducting plate  3  comprises a slot  31  which is disposed in one of the sections of the trough  11 . The slot  31  is designed to allow insertion from various directions. A contact end  32  extends from slot  31  and has a contact point  321  thereon corresponding to the contact point  21  of the first conducting plate  2 . 
     The third conducting plate  4  has a slot  41  disposed in another section of the trough  11  and is also available for insertion from various directions. 
     Upon assembly, the two sections of the trough  11  of the base  1  respectively receive the two slots  31  and  41  therein, as shown in FIG.  2 . Wherein, the contact point  321  of the contact end  32  is adjacent to the contact point  21  of the first conducting plate  2 , in spaced relationship. This forms a single receptacle that may be used in an extension cord or a wall mount receptacle. Due to the special design of the contact point  21  and the contact point  321 , a switching device may be mounted in various arrangements. 
     When installed with other devices, the receptacle will require a cover  5 , a switch device  6 , a light indicator  7  and an upper shell A and a lower shell B, as shown in FIGS. 3 and 4. The cover  5  is placed onto the base  1  with holes  51  (or open space) corresponding to the slots  31  and  41  of the second conducting plate  3  and the third conducting plate  4  in the trough  11 . A conducting part  8  is located between the contact point  321  of the contact end  32  extending from the second conducting plate  3  and the contact point  21  of the first conducting plate  2  as a switch to the circuit. This conducting part  8  is linked with the switch device  6 . The switch device  6  can be of various designs. The light indicator  7  has its two leads  71  connected with the second conducting plate  3  and third conducting plate  4 , respectively. Thus, when the circuit turns on, the light turns on, simultaneously. The light indicator  7  has neither a fixed shape nor a fixed location in the receptacle. The light indicator is shaped in accordance with the design of the upper shell A and the lower shell B, so long as its two leads  71  are able to connect with the second conducting plate  3  and the third conducting plate  4 . 
     The base  1  receives the first conducting plate  2 , the second conducting plate  3 , the third conducting plate  4 , and other devices to form the switch unit, which may be used as an extension cord, or a wall receptacle. The single mold may be joined with a series or single receptacles. There are two ways to form the single extension cord, and they are: 
     1. As shown in FIG. 5, at least two identical single receptacles are joined with the first conducting plates  2  and the third conducting plates  4  being connected respectively in series at their clippers  23  and  42 . By following the above process, each single receptacle may have similar peripheral devices, such as the switch device  6 , and the light indicator  7 , to form multiple electric power controlled receptacles. 
     2. Both the slot  31  of the second conducting plate  3  and the slot  41  of the third conducting plate  4  have respective extending portions which form multiple slots  31  and  41  for multiple plugs to use. Peripherals may be installed at the beginning of the receptacles, so that the receptacles have a single switch device  6  and a single light indicator  7 . 
     As shown in FIG. 7, the base  1  has a cover  5  with an outwardly extended edge  52 . Within the edge  52  and a rib  13  of the base  1  there is formed a receiving section for a cover  9  to mount thereat. Both the edge  52  and the rib  13  have blocks  53  and  14  adapted to engage with a spring  91  threat, respectively. 
     The shapes of the base  1  and the cover  5  may change at anytime, such as shown in FIG.  8 . The first conducting plate  2 , the second conducting plate  3  an the third conducting plate  4  are wrapped in the base  1  with the cover  5 . The base  1  has a block  15  with a notch  151  there at and a trough  16 . The light indicator  7  is placed on the top of the cover  5  with the two leads  71  extending downwardly. The first conducting plate  2  and the second conducting plate  3  may have various shapes, such as where the first conducting plate  2  has an extended contact end  22  with a contact point  21  disposed opposite the contact end  32  of the conducting plate  3 . Both of the contact ends  22  and  32  are in vertical position. The contact end  32  of the second conducting plate  3  is connected to one end of a conducting part  8  which has a contact point  81  disposed in contact with the contact point  21  of the contact end  22  of the first conducting plate  2 . In addition to connecting with the first conducting plate  2 , the conducting part  8  may be linked by a linkage  82  to reciprocal movement for engagement or disengagement between the contact ends  22  and  32 . In this manner, as shown in FIG. 9, the conducting part  8  is secured in the trough  16  between the bridge  12  and the trough  11 , that separates the first conducting plate  2  and the second conducting plate  3  at respective ends. The linkage  82  stays in the notch  151  of the block  15  above the bridge  12  with its inner end engaging with the conducting part  8 , while the outer end extends outwardly. As shown in FIG. 10, the light indicator  7  is secured on the top of the cover  5  with the two leads  71  extending downwardly and in connection with the second conducting plate  3  and the third conducting plate  4 , thus the light indicator  7  turns on and off with the movement of the linkage  82 .