US Patent 7694967 Dice cup

A dice cup for use in dice games involving concealment of the dice, including an open top end and an open bottom end, a closed opaque wall extending therebetween, and a longitudinal axis. A plurality of spaced-apart slats are disposed across the bottom end so as to define a plurality of viewing holes. The slats prevent dice from being ejected from the cup when said cup is shaken with said top end covered, and when the cup is inverted to cover dice on a flat surface, the slats provide an impediment to seeing the dice through the viewing holes unless viewed at a sufficiently small angle relative to said longitudinal axis.