Weighted Tennis Ball

Abstract

A tennis ball with weight material injected into its interior cavity for use in exercise and sport as a weight bearing device. The weight material adds weight to the tennis ball. The weight material completely or partially fills the interior cavity of the tennis ball. The weight of the tennis ball can be changed based on the amount and type of weight material inside the tennis ball.

I claim: 
     
         1 . A weighted tennis ball that is comprised of a rubber core and a felt cover surrounding the core with weight material injected into the interior cavity of the ball. 
     
     
         2 . The tennis ball of  claim 1  in which the weight material is comprised of a plurality of either metal balls, metal shot, metal grit, metal sand, metal powder, metal filings or a combination of said material. 
     
     
         3 . The tennis ball of  claim 1  in which the weight material is injected into the ball to completely fill the interior cavity. 
     
     
         4 . The tennis ball of  claim 1  in which the weight material is injected into the ball but not to completely fill the interior cavity. 
     
     
         5 . The tennis ball of  claim 1  where the weight material is made from iron or steel. 
     
     
         6 . The tennis ball of  claim 1  where the weight material is made from iron or steel that is coated with another metal or material that is not iron or steel. 
     
     
         7 . The tennis ball of  claim 1  where the weight material is not made from iron or steel. 
     
     
         8 . The tennis ball of  claim 1  where the weight material is made of alloys of various metals. 
     
     
         9 . The tennis ball of  claim 2  in which the size of the balls, shot, grit, or sand can vary. There is no fixed size. 
     
     
         10 . The tennis ball of  claim 2  in which the shape of the balls, shot, grit, or sand can vary. There is no fixed shape.