Softball

Abstract

A softball which includes a spherical core, a vapor block made of yarns which imbeds the spherical core and then is immersed into an adhesive agent to fill up clearances between the yams, and a cover made of two sheets of flexible material stitched together to enclose the vapor block, whereby even if the softball is stored in a humid environment or comes into contact with water when playing, no water or moisture can pass through the separation layer to the spherical core thereby extending the service life of the softball.

1 . A softball comprising: 
 a spherical core;    a vapor block made of yarns and imbedded within said spherical core and then immersed into an adhesive agent to fill up clearances between said yarns; and    a cover made of two sheets of flexible material stitched together to enclose said vapor block;    whereby no water or moisture can pass through said vapor block into said spherical core thereby extending service life of said softball    
   
   
       2 . The softball as claimed in  claim 1 , wherein said spherical core is made of polyurethane.  
   
   
       3 . The softball as claimed in  claim 1 , wherein said yarns are made of polyester.  
   
   
       4 . The softball as claimed in  claim 1 , wherein said vapor block is closely adhered to said spherical core.  
   
   
       5 . The softball as claimed in  claim 1 , wherein said vapor block is closely adhered to said cover.