04871169 is referenced by 9 patents and cites 7 patents.

Two hemispherical ball components are joined to permit one to be rotated relative to the other. Each component not only defines the ball's spherical surface but also defines a "flat" minor spherical segment. By manually manipulating the flat on one component relative that on the other one can provide any number of trick throws or pitches to confuse a batter.

Title
Game ball
Application Number
7/260119
Publication Number
4871169
Application Date
October 20, 1988
Publication Date
October 3, 1989
Inventor
Jeffrey P Crouch
170 Brittany Farms Rd., New Britain, 06053
CT, US
Joseph A Autorino
170 Brittany Farms Rd., New Britain, 06053
CT, US
Agent
McCormick Paulding & Huber
IPC
A63B 37/14
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