Patent ID: 7387583
Filing Date: 2008-06-17
Classification: A63B

Abstract:
1. A toy comprising: a first substantially spherical smaller ball having a first radius; and a second larger ball having a substantially spherical-section surface cavity with a first defining sphere having a second radius roughly equal to said first radius, said larger ball being, with the exception of said surface cavity, substantially spherical with a second defining sphere having a third radius greater than said first and second radii, the mouth of said cavity having an aperture radius and being flexible to allow insertion, retention and removal of said smaller ball into, within, and from, respectively, said surface cavity, the center of said first defining sphere being offset from said second defining sphere by an offset distance, said smaller ball, when in said cavity, extending beyond said mouth of said cavity roughly to said second defining sphere, when said smaller ball is not within said surface cavity, said larger ball is placeable in a stable equilibrium on a horizontal surface with the mouth of said cavity in contact with said horizontal surface, and when said smaller ball is located in said cavity of said larger ball and the combination is rolled, the combination rolls relatively true.