Trapezoidal Domino Geometry for Stable Upright Standing

The patent applies asymmetry by transitioning from a uniform rectangular cross-section to a tapered profile where the width varies along the length. Specifically, the domino has a wider base and narrower top, creating an asymmetric geometry that lowers the center of gravity and increases the stability margin, making it easier to stand upright while maintaining simple manufacturing through standard extrusion or molding processes.

The patent applies parameter changes by systematically varying the cross-sectional width parameter along the length of the domino to create a tapered profile. This continuous parameter variation achieves the desired stability and toppling characteristics while remaining compatible with standard manufacturing processes such as extrusion or injection molding, where the width parameter can be programmed into the tooling without fundamentally changing the manufacturing method.

The patent applies spheroidality by replacing sharp edges and corners with rounded contours. This curvature modification eliminates safety hazards from sharp edges while the rounding radius is chosen to be sufficiently large that it can be achieved through standard post-processing operations or integrated into the molding tooling, avoiding excessive precision requirements.