Water bouncing ball

Abstract

A water bouncing ball includes a gel core made of plastic material and an elastic porous plastic material adjacent the gel core and covering and centering the gel core in the middle of the ball. The ratio between the diameter of the gel core and the thickness of the elastic porous plastic material is in the range between 0.66 and 2.8. In this way a soft floating ball having good bouncing ability is provided.

1 . A water bouncing ball comprising:
 a gel core made of plastic material and having a diameter; and   an elastic porous plastic material adjacent the gel core and covering and centering the gel core in the middle of the ball, the elastic porous plastic material having a thickness;   wherein the ratio between the diameter of the gel core and the thickness of the elastic porous plastic material is in the range between 0.66 and 2.8.   
     
     
         2 . A ball according to  claim 1 , wherein the ratio between the diameter of the gel core and the thickness of the elastic porous plastic material is approximately  2 . 
     
     
         3 . A ball according to  claim 1 , wherein the diameter of the gel core is in the range between 10 and 100 mm. 
     
     
         4 . A ball according to  claim 3 , wherein the diameter of the gel core is in the range between 25 and 45 mm. 
     
     
         5 . A ball according to  claim 1 , wherein the density of the gel core is in the range between 0.8 and 1.10 g/cm 3 . 
     
     
         6 . A ball according to  claim 5 , wherein the density of the gel core is in the range between 0.9 and 1.3 g/cm 3 . 
     
     
         7 . A ball according to  claim 1 , wherein the gel core is made of polyurethane. 
     
     
         8 . A ball according to  claim 1 , wherein the gel core is made of thermal plastic rubber. 
     
     
         9 . A ball according to  claim 1 , wherein the gel core is made of styrene butadiene rubber. 
     
     
         10 . A ball according to  claim 1 , wherein the elastic porous plastic material is polyurethane. 
     
     
         11 . A ball according to  claim 1 , wherein the elastic porous plastic material is styrene-butadiene rubber. 
     
     
         12 . A ball according to  claim 1 , wherein the elastic porous plastic material is thermal plastic rubber. 
     
     
         13 . A ball according to  claim 1 , further comprising an outer shell section covering the elastic porous plastic material. 
     
     
         14 . A ball according to  claim 13 , wherein the outer shell section is a plastic film or includes a nano technology based material. 
     
     
         15 . A ball according to  claim 13 , wherein the outer shell section comprises a stretchable fabric layer.