Ball

Details Ball Ball

1988-03-21

1989-10-17

Marlo, George J.

Amusement devices: games

Aerial projectile game; game element or accessory therefor...

Target

273 58X, 273 26R, 273 61R, A63B 3908

Patent

active

048741698

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.

REFERENCES:
patent: D61805 (1923-01-01), Griffiths
patent: 2324277 (1943-07-01), Casey et al.
patent: 4616828 (1986-10-01), Haythornthwaite

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