Patent Publication Number: US-2006017407-A1

Title: Decoration with twinkling light string

Description:
BACKGROUND OF THE INVENTION  
      In festival or holidays, a light string is usually used for increasing happy sense. There are many kinds of decorative light strings with various patterns conventionally. These known decorations have a single light string to display monologue lighting effect in usual. Hence, the prior structure can not provide a perfect decorative purpose.  
     SUMMARY OF THE INVENTION  
      The present invention is to provide a decoration with twinkling light strings, which are connected with frames of the decoration respectively. Each string is connected with a respective frame while it can be controlled to lighten in interval relating another one for obtaining a various and novel decorative effect. 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 a perspective view showing a decoration with twinkling light strings according to the present invention.  
       FIG. 2  is a perspective view of  FIG. 1  showing different lighting effect of the decoration.  
       FIG. 3  is a view showing an electrical circuit of two connecting light strings according to the present invention.  
       FIG. 4  is a perspective view showing a controlling bulb according to the present invention.  
       FIG. 5  is a perspective view of  FIG. 4  showing a separating position of the controlling bulb.  
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT  
      Please referring to  FIG. 1  to  3 , the present invention includes a decoration ( 1 ), which has at least two frames ( 11 ), ( 12 ) for connecting with two relating light strings ( 2 ), ( 3 ). The main light string ( 2 ) is provided with a controlling bulb or a relay ( 21 ). The other connecting light string ( 3 ) has its two ends to connect with two terminals of the controlling bulb or the relay ( 21 ), as shown in  FIG. 3 , to become a parallel connection relating to the main light string ( 2 ). The bulbs ( 31 ) on the connecting light string ( 3 ) have high resistance value than the bulbs of the light string ( 2 ). Accordingly, when the relay ( 21 ) is on, the current will only pass through the light string ( 2 ) that causes only the frame ( 11 ) with lighting effect.  
      When the controlling bulb or the relay ( 21 ) is off, the current must flow through the light string ( 3 ) as well as the main string ( 2 ). Hence, both frames ( 11 ), ( 12 ) connecting with two strings ( 2 ), ( 3 ) are lightened. The decoration ( 1 ) with two frames will then obtain the twinkling effect between two light strings as the controlling bulb or the relay ( 21 ) is on or off in time interval automatically.  
      Please referring to  FIG. 4  and  5 , it shows an embodiment of the controlling bulb ( 21 ) according to present invention. The bulb ( 21 ) includes a dual-metal slice ( 211 ) having different coefficients of heat transfer inside. When the slice ( 211 ) is heated or cool, it can be bent to different directions, such as in position of  FIG. 4  to connect the circuit, or in position of  FIG. 5  to separate the connection. It can reach the twinkling effect for increasing the decorative purpose.