Ball
First Claim
1. A hand projectable game ball of generally spherical shape including a pair of complementary hemispherical portions joined along a generally equatorial line, one of said hemispheres of said pair including a predetermined uniform surface configuration extending over the entire surface of said hemisphere, the other hemisphere of said pair including an equatorial zone immediately adjacent said equatorial line, a polar zone and an intermediate zone between said polar and said equatorial zones, and flight control means on said other hemisphere substantially influencing the flight of the ball when thrown and confined solely to the area of said other hemisphere delineated as said intermediate zone and occupying between 1 pand 30 percent of said second hemispherical surface.
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Accused Products
Abstract
A game ball has a first hemisphere provided with depressions or protrusions which constitute from 1% to 30% of the surface of the hemisphere, the depressions being located solely in the middle one-third annulus of the hemisphere. When projected along the plane of a line joining the first hemisphere and a second hemisphere, the ball will deviate from a normal trajectory in the direction of the one hemisphere. The second hemisphere may have a smooth surface, or may have a uniform texture, such as that found on a tennis ball.
57 Citations
9 Claims
- 1. A hand projectable game ball of generally spherical shape including a pair of complementary hemispherical portions joined along a generally equatorial line, one of said hemispheres of said pair including a predetermined uniform surface configuration extending over the entire surface of said hemisphere, the other hemisphere of said pair including an equatorial zone immediately adjacent said equatorial line, a polar zone and an intermediate zone between said polar and said equatorial zones, and flight control means on said other hemisphere substantially influencing the flight of the ball when thrown and confined solely to the area of said other hemisphere delineated as said intermediate zone and occupying between 1 pand 30 percent of said second hemispherical surface.
Specification