Patent Publication Number: US-7223012-B2

Title: Bulb assemblies of light string with various connective status

Description:
FIELD OF THE INVENTION 
   The present invention relates to a light string, wherein the bulb assemblies of the string can be connected together to form various connective outlooks for increasing decorative effect. 
   BACKGROUND OF THE INVENTION 
   A conventional light string includes an electrical wire connecting with a plurality of bulb assemblies, which provide lighting for special decoration at all. Since the electrical wire is soft and each bulb assembly is connected with the wire in interval, a rigid frame should be provided for hanging the string in order to position the bulb assemblies at desired place. This is very inconvenient. 
   SUMMARY OF THE INVENTION 
   The present invention is to provide an improved light string, which has invented bulb assembly being capable of connecting with each other together easily to form various assembled outlooks of the string that obtains decorative purpose. Now, accompanying with the following drawings, the character of the present invention will be described here and after. 

   
     BRIEF DESCRIPTION OF THE DRAWINGS 
       FIG. 1  is an exploded perspective view showing a bulb assembly according to the present invention. 
       FIG. 2  is an assembled perspective view of  FIG. 1 . 
       FIG. 3  is a schematic view showing an embodiment of the light string according to the present invention. 
       FIG. 4  is a schematic view showing a various connective status of the light string according to the present invention. 
   

   DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT 
   Please refer to  FIGS. 1 and 2 ; the present invention discloses a bulb assembly ( 10 ), which includes a shell ( 1 ), a bulb holder ( 2 ), and a bulb ( 3 ). The bulb ( 3 ) is received in the holder ( 2 ), which is then assembled in the shell ( 1 ). Each bulb assembly ( 10 ) is connected with an electrical wire to become a light string for decoration. The improvement of the present invention is in that the shell ( 1 ) is provided with a male flange ( 11 ) and a female groove ( 12 ) at the opposite sides. Therefore, each shell ( 1 ) of a bulb assembly ( 10 ) is able to connect its male flange ( 11 ) with a groove ( 12 ) of another shell ( 1 ) of the related bulb assembly ( 10 ) and to connect its female groove ( 12 ) with a related flange ( 11 ) of another shell ( 1 ). Accordingly, every bulb assembly ( 10 ) of a light string is able to connect with each other to become a stable connective status of the bulb assembly ( 10 ). 
   For example, as shown in  FIG. 3  or  4 , the present invention can become a stable connective status by the connection between each bulb assembly. When the connecting position is different, the string shows a different connective outlook. It is to be understood that various connective status of the light string can be achieved by adjusting the connecting position of the shell of each bulb assembly. The connecting configuration is stable without any rigid frame that increases the effect of utility.