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US 4,546,978 AGranted
Dice and games
OwnerConstant V. Davidinventor
Life of this patent
Estimating the term…
Abstract
Die configurations displaying six or more equal faces are provided. The die is constructed to provide a space volume inside an outer shell in which a ballast weight is positioned. Also provided is a die construction with manual and/or chance adjustment. The skill of the player is then influential in determining chance and examples of possible uses for games of chance indicate how the player can exercise such skill in challenging games in which chance can be altered in favor of the player throwing the die.
Claims12
A die comprising:
- a geometric body having a plurality of flat external faces and an internal cavity;
- indicia on the faces;
- a weight inside of the cavity;
- and
- means visible externally of the body for indexing the location of the weight inside the cavity to thereby vary the center of gravity of the die.
2 more elements
A die comprising:
- a hollow geometric body having a plurality of flat faces;
- indicia on the faces;
- a ballast weight normally freely movable inside the body;
- and
- means for constraining the movement of the ballast weight inside the body so that when the die is thrown on a flat surface the probability of the die coming to rest with a given one of the faces in an indicating position will vary from throw to throw, including a quantity of fluid inside the geometric body having a viscosity which is substantially constant during variations in the temperature between about 15 degrees C. and 40 degrees C.
2 more elements
A die comprising:
- a hollow geometric body having a plurality of flat faces;
- indicia on the faces;
- a ballast weight normally freely movable inside the body;
- and
- means for constraining the movement of the ballast weight inside the body so that when the die is thrown on a flat surface the probability of the die coming to rest with a given one of the faces in an indicating position will vary from throw to throw, including a quantity of fluid inside the geometric body having a viscosity which changes substantially during variations in temperature between about 20 degrees C. and 35 degrees C.
2 more elements
A die comprising:
- a hollow geometric body having a plurality of flat faces;
- indicia of the faces;
- a ballast weight normally freely movable inside the body;
- and
- means for constraining the movement of the ballast weight inside the body so that when the die is thrown on a flat surface the probability of the die coming to rest with a given one of the faces in an indicating position will vary from throw to throw, including a spring connecting the ballast weight and the geometric body.
2 more elements
A die comprising:
- a hollow geometric body having a plurality of flat faces;
- indicia on the faces;
- a ballast weight normally freely movable inside the body;
- and
- means for constraining the movement of the ballast weight inside the body so that when the die is thrown on a flat surface the probability of the die coming to rest with a given one of the faces in an indicating position will vary from throw to throw, including a quantity of a viscous fluid within the geometric body and a quantity of high density particles dispersed in the fluid.
2 more elements
Dependencies are inferred from the claim text.