Necklace extension

Abstract

An extension for joining opposite ends of jewelry, especially necklaces. The extension including a central region joining opposed spiral regions. Each of said spiral regions being descending spirals of approximately one and one half revolutions and decreasing in radius by about one half for each one half revolution. The spiral regions are reverse mirror images. The extensions can be utilized individually or as multiples to modify the length of the jewelry.

1 . An extension for use with a necklace comprising: 
 (a) a body with a center region with a pair of opposed spiral regions extending from opposite ends of said center region; each of said spiral regions spiraling inwardly with a continuously decreasing radius for greater than one full revolution.    
   
   
       2 . The extension according to  claim 1  wherein: 
 (a) said spiral region include at least one and a half revolutions.    
   
   
       3 . The extension according to  claim 1  wherein: 
 (a) said spiral regions are reverse mirror images of one another.    
   
   
       4 . The extension according to  claim 1  wherein: 
 (a) each spiral region includes an intermediate loop that is adopted to operably engage a selected end of a structure to be joined thereby.    
   
   
       5 . The extension according to  claim 1  wherein: 
 (a) each of said intermediate loops has a radius of about one quarter of an inch.    
   
   
       6 . The extension according to  claim 1  wherein: 
 (a) each of said spiral regions terminates in an end that in opposite directions and generally parallel to said center region.    
   
   
       7 . The extensions according to  claim 2  wherein: 
 (a) each of said spiral regions has a radius of about five sixteenths of an inch were at a respective spiral region joins with said center region.    
   
   
       8 . The extension according to  claim 1  wherein: 
 (a) each of said spiral regions decrease generally uniformly in radius by approximately one half over each one half revolution.    
   
   
       9 . The Extension according to  claim 1  wherein: 
 (a) said extension is constructed of wire having a generally uniform cross section.    
   
   
       10 . The extension according to  claim 9  wherein: 
 (a) said wire has a radius of about one thirty-second of an inch.    
   
   
       11 . A method of extending a necklace comprising the steps of: 
 (a) providing a necklace with connectors at opposite ends thereof:    (b) providing a first and a second extension;    (c) joining a first end of said necklace;    (d) joining a second end of said first extension to a first end of said second extension;    (e) joining a second end of said second extension with said necklace second connector.    
   
   
       12 . The method according to  claim 11  including wherein: 
 (a) providing said extensions with opposed decreasing spiral regions having an intermediate engagement portion;    (b) joining said first and second extensions at respective engagement portions thereof; and    (c) providing each of said engagement portions with sufficient radius to allow said extensions to lie relatively flat with respect to one another, when joined.    
   
   
       13 . The method according to  claim 12  including: 
 (a) providing said radius that is at least approximately five sixteenth of an inch.    
   
   
       14 . The method according to  claim 11  wherein: 
 (a) said second extension includes a plurality of discrete extension units.